{"id":8398,"date":"2020-11-02T18:57:17","date_gmt":"2020-11-02T23:57:17","guid":{"rendered":"https:\/\/www.progeriaresearch.org\/?p=8398"},"modified":"2022-12-09T06:43:20","modified_gmt":"2022-12-09T11:43:20","slug":"2020-workshop","status":"publish","type":"post","link":"https:\/\/www.progeriaresearch.org\/fr\/2020\/11\/02\/2020-workshop\/","title":{"rendered":"10e atelier scientifique international du PRF"},"content":{"rendered":"<p>[et_pb_section fb_built=&#8221;1&#8243; fullwidth=&#8221;on&#8221; disabled_on=&#8221;off|off|off&#8221; _builder_version=&#8221;4.16&#8243; border_width_bottom=&#8221;55px&#8221; border_color_bottom=&#8221;#29327a&#8221; locked=&#8221;off&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_fullwidth_image src=&#8221;https:\/\/www.progeriaresearch.org\/wp-content\/uploads\/2020\/01\/2020WebinarBanner.png&#8221; title_text=&#8221;2020WebinarBanner&#8221; _builder_version=&#8221;4.16&#8243; custom_padding=&#8221;20px|||&#8221; z_index_tablet=&#8221;500&#8243; global_colors_info=&#8221;{}&#8221;]<\/p>\n<p>[\/et_pb_fullwidth_image][\/et_pb_section][et_pb_section fb_built=&#8221;1&#8243; use_custom_gutter=&#8221;on&#8221; gutter_width=&#8221;1&#8243; specialty=&#8221;on&#8221; padding_left_1=&#8221;35px&#8221; padding_left_2=&#8221;35px&#8221; padding_2_tablet=&#8221;|||0px&#8221; padding_2_phone=&#8221;|||0px&#8221; padding_2_last_edited=&#8221;on|desktop&#8221; module_class_1=&#8221;sidebar-secondary-nav&#8221; module_class=&#8221;handprint-bg&#8221; _builder_version=&#8221;4.16&#8243; background_image=&#8221;https:\/\/www.progeriaresearch.org\/wp-content\/uploads\/2019\/04\/blue-handprint-only.png&#8221; parallax=&#8221;on&#8221; parallax_method=&#8221;off&#8221; inner_width=&#8221;100%&#8221; inner_max_width=&#8221;100%&#8221; custom_padding=&#8221;0|0px|54px|0px|false|false&#8221; z_index_tablet=&#8221;500&#8243; border_width_top=&#8221;10px&#8221; border_color_top=&#8221;#8fd2ed&#8221; use_custom_width=&#8221;on&#8221; width_unit=&#8221;off&#8221; custom_width_percent=&#8221;100%&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;1_4&#8243; _builder_version=&#8221;4.16&#8243; custom_padding=&#8221;|||&#8221; global_colors_info=&#8221;{}&#8221; custom_padding__hover=&#8221;|||&#8221;][et_pb_sidebar area=&#8221;et_pb_widget_area_24&#8243; disabled_on=&#8221;on|on|off&#8221; admin_label=&#8221;Scientific meetings sidebar&#8221; module_class=&#8221;subpage-sidebars&#8221; _builder_version=&#8221;4.16&#8243; text_orientation=&#8221;left&#8221; animation_style=&#8221;fade&#8221; hover_enabled=&#8221;0&#8243; z_index_tablet=&#8221;500&#8243; border_width_right=&#8221;5px&#8221; global_colors_info=&#8221;{}&#8221; sticky_enabled=&#8221;0&#8243; locked=&#8221;off&#8221;][\/et_pb_sidebar][\/et_pb_column][et_pb_column type=&#8221;3_4&#8243; specialty_columns=&#8221;3&#8243; _builder_version=&#8221;4.16&#8243; custom_padding=&#8221;|||&#8221; global_colors_info=&#8221;{}&#8221; custom_padding__hover=&#8221;|||&#8221;][et_pb_row_inner custom_padding_last_edited=&#8221;on|phone&#8221; _builder_version=&#8221;4.16&#8243; custom_padding=&#8221;39.4375px|35px|35px||false|false&#8221; custom_padding_tablet=&#8221;|35px||35px||true&#8221; custom_padding_phone=&#8221;&#8221; animation_direction=&#8221;top&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column_inner saved_specialty_column_type=&#8221;3_4&#8243; _builder_version=&#8221;4.16&#8243; custom_padding=&#8221;|||&#8221; global_colors_info=&#8221;{}&#8221; custom_padding__hover=&#8221;|||&#8221;][et_pb_text _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<h4 style=\"text-align: center;\"><strong>Over 370<\/strong> registrants from <strong>30<\/strong> countries attended our 1<sup>st<\/sup> ever web-based Scientific Meeting!<\/h4>\n<p>[\/et_pb_text][et_pb_image src=&#8221;https:\/\/www.progeriaresearch.org\/wp-content\/uploads\/2020\/07\/Registrant-Map-1.jpg&#8221; title_text=&#8221;Registrant-Map&#8221; align=&#8221;center&#8221; admin_label=&#8221;map&#8221; _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; custom_margin=&#8221;10px||20px||false|false&#8221; global_colors_info=&#8221;{}&#8221;][\/et_pb_image][et_pb_image src=&#8221;https:\/\/www.progeriaresearch.org\/wp-content\/uploads\/2020\/12\/Complete-Photo.jpg&#8221; title_text=&#8221;Complete-Photo&#8221; align=&#8221;center&#8221; admin_label=&#8221;participants&#8221; _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; custom_margin=&#8221;10px||15px||false|false&#8221; global_colors_info=&#8221;{}&#8221;][\/et_pb_image][et_pb_text admin_label=&#8221;video clip text&#8221; _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<h4 style=\"text-align: center;\">We hope you enjoy this clip from our 2020 International Workshop,<br \/> \u201cResearching Possibilities, ExTENding Lives\u201d webinar<\/h4>\n<p>[\/et_pb_text][et_pb_video src=&#8221;https:\/\/www.youtube.com\/watch?v=pedD1zXVw1o&#038;feature=youtu.be&#8221; _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][\/et_pb_video][et_pb_text admin_label=&#8221;disclaimer&#8221; _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<p style=\"text-align: center;\">\u00a0<i>All rights reserved. Please do not download, copy, distribute, or modify this presentation in any way.<\/i><\/p>\n<p>[\/et_pb_text][\/et_pb_column_inner][\/et_pb_row_inner][et_pb_row_inner _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; custom_padding=&#8221;|35px||||&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column_inner saved_specialty_column_type=&#8221;3_4&#8243; _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_text admin_label=&#8221;Chat Questions&#8221; _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<h4><strong>Unanswered Chat Questions<\/strong><\/h4>\n<p>[\/et_pb_text][et_pb_toggle title=&#8221;To Dr. Francis Collins:  Question: From Mansoor Amiji: Dr. Collins, have you looked at the biodistribution of the PPPMO upon systemic &#8221; open_toggle_background_color=&#8221;#f7f7f7&#8243; closed_toggle_text_color=&#8221;#ffffff&#8221; closed_toggle_background_color=&#8221;#00b2e2&#8243; icon_color=&#8221;#ffc15e&#8221; open_icon_color=&#8221;#ffc15e&#8221; admin_label=&#8221;Collins Q&#038;A&#8221; _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; title_text_color=&#8221;#00b2e2&#8243; title_font=&#8221;||||||||&#8221; background_color=&#8221;#ffffff&#8221; custom_margin=&#8221;||25px&#8221; custom_padding=&#8221;|50px||50px||true&#8221; border_width_all=&#8221;0px&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<p><strong><br \/><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-11433 size-full alignleft\" src=\"https:\/\/www.progeriaresearch.org\/wp-content\/uploads\/2020\/07\/Dr.-Collins.jpg\" alt=\"\" width=\"200\" height=\"200\" srcset=\"https:\/\/www.progeriaresearch.org\/wp-content\/uploads\/2020\/07\/Dr.-Collins.jpg 200w, https:\/\/www.progeriaresearch.org\/wp-content\/uploads\/2020\/07\/Dr.-Collins-150x150.jpg 150w\" sizes=\"(max-width: 200px) 100vw, 200px\" \/>Answer:<\/strong> PK\/PD studies indicated 100% bioavailability in heart, aorta and kidney. Kidney was the only tissue where there was a suggestion of accumulation, based on histologic examination and PK\/PD data. Single dose administration of SRP-2001 demonstrated that PPMO was rapidly cleared from heart (within 2 hours), cleared from aorta within 4 hours, but sustained in kidney to the 48hr timepoint. Quantitative ddPCR demonstrated G608G cryptic splice inhibition activity in all tissues except skin tested thus far (aorta, heart, kidney, liver, quadriceps, bone), although activity varied depending on the tissue.<\/p>\n<p><em>Francis, Mike, and Wayne<\/em><\/p>\n<p>[\/et_pb_toggle][et_pb_toggle title=&#8221;To Dr. Pinak Shah and Dr. Francesco Musumeci:  Question: From RVB:  Can magnesium\/calcium intake determine the degree of calcification in children with HGPS?&#8221; open_toggle_background_color=&#8221;#f7f7f7&#8243; closed_toggle_text_color=&#8221;#ffffff&#8221; closed_toggle_background_color=&#8221;#00b2e2&#8243; icon_color=&#8221;#ffc15e&#8221; open_icon_color=&#8221;#ffc15e&#8221; admin_label=&#8221;Shah &#038; Musumeci Q&#038;A&#8221; _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; title_text_color=&#8221;#00b2e2&#8243; title_font=&#8221;||||||||&#8221; background_color=&#8221;#ffffff&#8221; custom_margin=&#8221;||25px&#8221; custom_padding=&#8221;|50px||50px||true&#8221; border_width_all=&#8221;0px&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<p><strong><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-11437 size-full alignleft\" src=\"https:\/\/www.progeriaresearch.org\/wp-content\/uploads\/2020\/07\/BinnyShah.jpg\" alt=\"\" width=\"200\" height=\"200\" srcset=\"https:\/\/www.progeriaresearch.org\/wp-content\/uploads\/2020\/07\/BinnyShah.jpg 200w, https:\/\/www.progeriaresearch.org\/wp-content\/uploads\/2020\/07\/BinnyShah-150x150.jpg 150w\" sizes=\"(max-width: 200px) 100vw, 200px\" \/><\/strong><strong>Answer:<\/strong>Regarding the question, to be honest, I don\u2019t know the answer to this question.\u00a0 In a typical adult, however, we do not correlate degree of valvular calcification with Mg\/Ca intake, the heavier calcification is likely due to other factors.<\/p>\n<p><em>Dr. Pinak Shah<\/em><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p><strong><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-11438 size-full alignleft\" src=\"https:\/\/www.progeriaresearch.org\/wp-content\/uploads\/2020\/07\/FrancesoMusumesci.jpg\" alt=\"\" width=\"200\" height=\"200\" srcset=\"https:\/\/www.progeriaresearch.org\/wp-content\/uploads\/2020\/07\/FrancesoMusumesci.jpg 200w, https:\/\/www.progeriaresearch.org\/wp-content\/uploads\/2020\/07\/FrancesoMusumesci-150x150.jpg 150w\" sizes=\"(max-width: 200px) 100vw, 200px\" \/>Answer: <\/strong>I agree with Dr. Shah opinion. Probably causes of valve calcification in HGPS are different from the one we see in elderly patients. I also have no knowledge on Ca and Mg metabolism.<\/p>\n<p><em>Dr. Francesco\u00a0Musumeci<\/em><\/p>\n<p><strong>\u00a0<\/strong><\/p>\n<p>[\/et_pb_toggle][et_pb_toggle title=&#8221; To Dr. Vicente Andres: Question: From Andre Monteiro Da Rocha &#8211; University of Michigan: Do the mice lacking Lamin A develop DCM?&#8221; open_toggle_background_color=&#8221;#f7f7f7&#8243; closed_toggle_text_color=&#8221;#ffffff&#8221; closed_toggle_background_color=&#8221;#00b2e2&#8243; icon_color=&#8221;#ffc15e&#8221; open_icon_color=&#8221;#ffc15e&#8221; admin_label=&#8221;Andres Q&#038;A&#8221; _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; title_text_color=&#8221;#00b2e2&#8243; title_font=&#8221;||||||||&#8221; background_color=&#8221;#ffffff&#8221; custom_margin=&#8221;||25px&#8221; custom_padding=&#8221;|50px||50px||true&#8221; border_width_all=&#8221;0px&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-11439 size-full alignleft\" src=\"https:\/\/www.progeriaresearch.org\/wp-content\/uploads\/2020\/07\/vicente.jpg\" alt=\"\" width=\"180\" height=\"180\" srcset=\"https:\/\/www.progeriaresearch.org\/wp-content\/uploads\/2020\/07\/vicente.jpg 180w, https:\/\/www.progeriaresearch.org\/wp-content\/uploads\/2020\/07\/vicente-150x150.jpg 150w\" sizes=\"(max-width: 180px) 100vw, 180px\" \/><strong>Answer: <\/strong>The lamin A\/C null (<em>Lmna<\/em><sup>-\/-<\/sup>) mouse model develops DCM accompanied with loss of cardiac function. Moreover, these mice exhibit defects in cardiac conduction and extensive cardiac fibrosis, and premature death at 5-8 weeks of age (Auguste et al., 2018; Frock et al., 2012; Sullivan, 1999). However, mouse models lacking only Lamin A (Fong et al., 2006) or lamin C (Coffinier et al., 2010) do not show cardiac defects and have a normal lifespan.<\/p>\n<p><strong>References:<br \/><\/strong>Auguste, G., Gurha, P., Lombardi, R., Coarfa, C., Willerson, J. T., &amp; Marian, A. J. (2018). <em>Suppression of Activated FOXO Transcription Factors in the Heart Prolongs Survival in a Mouse Model of Laminopathies<\/em>. <a href=\"https:\/\/doi.org\/10.1161\/CIRCRESAHA.117.312052\" target=\"_blank\" rel=\"noopener noreferrer\">https:\/\/doi.org\/10.1161\/CIRCRESAHA.117.312052<\/a><\/p>\n<p>Coffinier, C., Jung, H. J., Li, Z., Nobumori, C., Yun, U. J., Farber, E. A., Davies, B. S., Weinstein, M. M., Yang, S. H., Lammerding, J., Farahani, J. N., Bentolila, L. A., Fong, L. G., &amp; Young, S. G. (2010). Direct synthesis of lamin A, bypassing prelamin a processing, causes misshapen nuclei in fibroblasts but no detectable pathology in mice. <em>Journal of Biological Chemistry<\/em>, <em>285<\/em>(27), 20818\u201320826. <a href=\"https:\/\/doi.org\/10.1074\/jbc.M110.128835\" target=\"_blank\" rel=\"noopener noreferrer\">https:\/\/doi.org\/10.1074\/jbc.M110.128835<\/a><\/p>\n<p>Fong, L. G., Bergo, M. O., Young, S. G., Fong, L. G., Ng, J. K., Lammerding, J., Vickers, T. A., Meta, M., Cot\u00e9, N., Gavino, B., Qiao, X., Chang, S. Y., Young, S. R., Yang, S. H., Stewart, C. L., Lee, R. T., Bennett, C. F., Bergo, M. O., &amp; Young, S. G. (2006). Prelamin A and lamin A appear to be dispensable in the nuclear lamina. <em>The Journal of Clinical Investigation<\/em>, <em>116<\/em>(3), 743\u2013752. <a href=\"https:\/\/doi.org\/10.1172\/JCI27125.with\" target=\"_blank\" rel=\"noopener noreferrer\">https:\/\/doi.org\/10.1172\/JCI27125.with<\/a><\/p>\n<p>Frock, R. L., Chen, S. C., Da, D., Frett, E., Lau, C., Brown, C., Pak, D. N., Wang, Y., Muchir, A., Worman, H. J., Santana, L. F., Ladiges, W. C., Rabinovitch, P. S., &amp; Kennedy, B. K. (2012). Cardiomyocyte-specific expression of lamin A improves cardiac function in Lmna-\/- mice. <em>PLoS ONE<\/em>, <em>7<\/em>(8), 1\u20139. <a href=\"https:\/\/doi.org\/10.1371\/journal.pone.0042918\" target=\"_blank\" rel=\"noopener noreferrer\">https:\/\/doi.org\/10.1371\/journal.pone.0042918<\/a><\/p>\n<p>Sullivan, T. (1999). Loss of A-type lamin expression compromises nuclear envelope integrity leading to muscular dystrophy. <em>The Journal of Cell Biology<\/em>, <em>147<\/em>(5), 913\u2013920. <a href=\"https:\/\/doi.org\/10.1083\/jcb.147.5.913\" target=\"_blank\" rel=\"noopener noreferrer\">https:\/\/doi.org\/10.1083\/jcb.147.5.913<\/a><\/p>\n<p>[\/et_pb_toggle][et_pb_toggle title=&#8221; To Dr. Giovanna Lattanzi: 2 Questions and Answers for Dr. Lattanzi listed below.&#8221; open_toggle_background_color=&#8221;#f7f7f7&#8243; closed_toggle_text_color=&#8221;#ffffff&#8221; closed_toggle_background_color=&#8221;#00b2e2&#8243; icon_color=&#8221;#ffc15e&#8221; open_icon_color=&#8221;#ffc15e&#8221; admin_label=&#8221;Lattanzi Q&#038;A 2&#8243; _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; title_text_color=&#8221;#00b2e2&#8243; title_font=&#8221;||||||||&#8221; background_color=&#8221;#ffffff&#8221; custom_margin=&#8221;||25px&#8221; custom_padding=&#8221;|50px||50px||true&#8221; border_width_all=&#8221;0px&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<p><strong><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-11440 size-full alignleft\" src=\"https:\/\/www.progeriaresearch.org\/wp-content\/uploads\/2020\/07\/Giovanna-Latanazi.jpg\" alt=\"\" width=\"200\" height=\"200\" srcset=\"https:\/\/www.progeriaresearch.org\/wp-content\/uploads\/2020\/07\/Giovanna-Latanazi.jpg 200w, https:\/\/www.progeriaresearch.org\/wp-content\/uploads\/2020\/07\/Giovanna-Latanazi-150x150.jpg 150w\" sizes=\"(max-width: 200px) 100vw, 200px\" \/><span style=\"color: #000080;\">Question:<\/span> <\/strong>From Tom Misteli: how long was the lonafarnib + tozilizumab treatment in animals?<br \/><strong><span style=\"color: #00ccff;\">Answer:<\/span> <\/strong>We performed a preliminary experiment in heterozygous animals starting at week 22 up to week 30. We wish to focus on this time frame to evaluate the effect on weight gain that was previously observed with tocilizumab.<\/p>\n<p><span style=\"color: #000080;\"><strong>Question: <\/strong><\/span>From Sgonzalo: Beautiful story Giovanna and Sammy!!! Did you see any side effects of tocilizumab treatment? Or any phenotypes that were not improved in progeria mice? To Dr. Giovanna Lattanzi: Question: From tom misteli: how long was the lonafarnib + tozilizumab treatment in animals?<br \/><span style=\"color: #00ccff;\"><strong>Answer: <\/strong><\/span>Thank you Susana. No, we did not see any side effect of tocilizumab.\u00a0 Among the examined phenotypes (kyphosis, adipose tissue dystrophy, hair and skin defects, locomotor activity, aorta lesions and myocardium hyperthrophy) were delayed\/improved.<\/p>\n<p><span style=\"color: #000080;\"><strong>Comment: <\/strong><\/span>From\u00a0 MARIE GERHARD-HERMAN : Also used in US for rheumatologist disease and vasculitis<br \/><strong><span style=\"color: #00ccff;\">Reply:<\/span> <\/strong>Thank you Marie for this interesting info on the use for vasculitis.<\/p>\n<p><strong><span style=\"color: #000080;\">Comment:<\/span> <\/strong>From pc stefano: Tocilizumab is also approved in Japan for treating Castleman disease with no immunosoppressive effects<br \/><span style=\"color: #00ccff;\"><strong>Reply: <\/strong><\/span>Thank you Stefano for these infos.<\/p>\n<p>[\/et_pb_toggle][et_pb_toggle title=&#8221;To Dr. Minju Kim and Somi Kang who presented on behalf of Dr. Bum-Joon Park: 8 Questions and Answers for Dr. Minju Kim and Somi Kanglisted below.&#8221; open_toggle_background_color=&#8221;#f7f7f7&#8243; closed_toggle_text_color=&#8221;#ffffff&#8221; closed_toggle_background_color=&#8221;#00b2e2&#8243; icon_color=&#8221;#ffc15e&#8221; open_icon_color=&#8221;#ffc15e&#8221; admin_label=&#8221;Kim and Kang Q&#038;A 6 questions&#8221; _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; title_text_color=&#8221;#00b2e2&#8243; title_font=&#8221;||||||||&#8221; background_color=&#8221;#ffffff&#8221; custom_margin=&#8221;||25px&#8221; custom_padding=&#8221;|50px||50px||true&#8221; border_width_all=&#8221;0px&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-11443 size-full alignright\" src=\"https:\/\/www.progeriaresearch.org\/wp-content\/uploads\/2020\/07\/Somi-1.jpg\" alt=\"\" width=\"157\" height=\"157\" srcset=\"https:\/\/www.progeriaresearch.org\/wp-content\/uploads\/2020\/07\/Somi-1.jpg 157w, https:\/\/www.progeriaresearch.org\/wp-content\/uploads\/2020\/07\/Somi-1-150x150.jpg 150w\" sizes=\"(max-width: 157px) 100vw, 157px\" \/><strong><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-11441 size-full alignleft\" src=\"https:\/\/www.progeriaresearch.org\/wp-content\/uploads\/2020\/07\/MinjuKim.jpg\" alt=\"\" width=\"157\" height=\"157\" srcset=\"https:\/\/www.progeriaresearch.org\/wp-content\/uploads\/2020\/07\/MinjuKim.jpg 157w, https:\/\/www.progeriaresearch.org\/wp-content\/uploads\/2020\/07\/MinjuKim-150x150.jpg 150w\" sizes=\"(max-width: 157px) 100vw, 157px\" \/> <\/strong><\/p>\n<p><strong><span style=\"color: #000080;\">Question:<\/span> <\/strong>From Delphine Larrieu: do you see any DNA damage decrease upon progerinin treatment in HGPS cells\/HGPS mouse models?<br \/><span style=\"color: #00ccff;\"><strong>Answer: <\/strong><\/span>We observed that DNA repair related genes(BRCA1, Rad51, etc) were altered after treatment with progerinin.<\/p>\n<p><span style=\"color: #000080;\"><strong>Question:<\/strong> <\/span>From Delphine Larrieu: How does progerinin work in Werner<br \/>Syndrome that &#8211; as far as I know &#8211; does not express progerin? Does the molecule has any other targets?<br \/><span style=\"color: #00ccff;\"><strong>Answer: <\/strong><\/span>WS cells can also produce a small amount of progerin like as normal aged<br \/>cells. We observed progerin expression in WS cells at mRNA levels.<br \/>We think that WRN protein can function to inhibit progerin. However, in the<br \/>case of WS patients, since there is no WRN protein, progerin expression is<br \/>thought to occur in the 20s and 30s, as much as it is seen in normally aged<br \/>people.<\/p>\n<p><span style=\"color: #000080;\"><strong>Question: <\/strong><\/span>From Bob Bishop: Is the progerinin binding site defined biochemically or<br \/>structurally? Is there a biochemical assay to find additional compounds<br \/>with this mechanism?<br \/><span style=\"color: #00ccff;\"><strong>Answer: <\/strong><\/span>We performed biotin-avidin bead pull-down assay and observed the<br \/>specific interaction of perogerinin with progerin but not with lamin A, lamin<br \/>B, p53, or emerin.<br \/>We also perfomed Elisa assay to find additional compounds which could<br \/>be putative progerin\/lamin A-binding inhibitors. Progerin recombinant protein was incubated sequentially with a chemical library and lamin A.<br \/>However, progerinin was the most effective chemical in the chemical<br \/>library.<img loading=\"lazy\" decoding=\"async\" class=\"wp-image-11444 aligncenter size-medium\" src=\"https:\/\/www.progeriaresearch.org\/wp-content\/uploads\/2020\/07\/Chart-300x252.png\" alt=\"\" width=\"300\" height=\"252\" \/><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-11445 aligncenter size-medium\" src=\"https:\/\/www.progeriaresearch.org\/wp-content\/uploads\/2020\/07\/table-300x166.png\" alt=\"\" width=\"300\" height=\"166\" \/><\/p>\n<p><span style=\"color: #000080;\"><strong>Question: <\/strong><\/span>From John Cooke: Great progress Dr. Kim.\u00a0\u00a0 Does Progerinin reduce the<br \/>secretion of SASP cytokines?<br \/><span style=\"color: #00ccff;\"><strong>Answer: <\/strong><\/span>We observed that progerinin could reduce the expression of IL6 and IL8 in<br \/>HGPS cells.<\/p>\n<p><span style=\"color: #000080;\"><strong>Question: <\/strong><\/span>From Susan Michaelis: is progerinin available to researchers?<br \/><span style=\"color: #00ccff;\"><strong>Answer: <\/strong><\/span>Of course, it is available if you request.<\/p>\n<p><span style=\"color: #000080;\"><strong>Question: <\/strong><\/span>From Thomas W Glover: I may have missed it but what do you think is the<br \/>mechanism responsible for the beneficial effects in Werner syndrome?<br \/><span style=\"color: #00ccff;\"><strong>Answer: <\/strong><\/span>WS patients-derived cells also produce a small amount of progerin, as<br \/>much as normal cells derived from aged people. Progerinin can be also<br \/>effective in WS cells by reducing progerin expression.<\/p>\n<p>[\/et_pb_toggle][et_pb_toggle title=&#8221;To Dr. Martin Berg\u00f6: Question: From Mario D. Cordero: Have you studied the effect about inflammation?&#8221; open_toggle_background_color=&#8221;#f7f7f7&#8243; closed_toggle_text_color=&#8221;#ffffff&#8221; closed_toggle_background_color=&#8221;#00b2e2&#8243; icon_color=&#8221;#ffc15e&#8221; open_icon_color=&#8221;#ffc15e&#8221; admin_label=&#8221;Dr. Martin Berg\u00f6&#8221; _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; title_text_color=&#8221;#00b2e2&#8243; title_font=&#8221;||||||||&#8221; background_color=&#8221;#ffffff&#8221; custom_margin=&#8221;||25px&#8221; custom_padding=&#8221;|50px||50px||true&#8221; border_width_all=&#8221;0px&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<p><strong><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.progeriaresearch.org\/wp-content\/uploads\/2020\/12\/MartinBergo.jpg\" width=\"200\" height=\"204\" alt=\"\" class=\"wp-image-11542 aligncenter size-full\" style=\"float: left;\" \/>Answer: <\/strong>Thanks for the question: No, not inflammation per se. Partially related to inflammation, we have studied macrophages in this project and found that knockout of\u00a0<i>Icmt<\/i>\u00a0in increases macrophage cholesterol efflux, both basal and ApoAI- and HDL-stimulated. As this effect is somtimes associated with increased reverse cholesterol transport in vivo, we would like to determine if\u00a0<i>Icmt<\/i>\u00a0inhibition would reduce atherosclerosis development.<\/p>\n<p>[\/et_pb_toggle][et_pb_toggle title=&#8221;To Dr. David Liu: Question: 3 Questions and Answers for Dr. Lui listed below.&#8221; open_toggle_background_color=&#8221;#f7f7f7&#8243; closed_toggle_text_color=&#8221;#ffffff&#8221; closed_toggle_background_color=&#8221;#00b2e2&#8243; icon_color=&#8221;#ffc15e&#8221; open_icon_color=&#8221;#ffc15e&#8221; admin_label=&#8221;Dr. David Liu Q&#038;A 3&#8243; _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; title_text_color=&#8221;#00b2e2&#8243; title_font=&#8221;||||||||&#8221; background_color=&#8221;#ffffff&#8221; custom_margin=&#8221;||25px&#8221; custom_padding=&#8221;|50px||50px||true&#8221; border_width_all=&#8221;0px&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-11541 alignleft size-full\" src=\"https:\/\/www.progeriaresearch.org\/wp-content\/uploads\/2020\/12\/Liu.jpg\" alt=\"\" width=\"200\" height=\"198\" srcset=\"https:\/\/www.progeriaresearch.org\/wp-content\/uploads\/2020\/12\/Liu.jpg 200w, https:\/\/www.progeriaresearch.org\/wp-content\/uploads\/2020\/12\/Liu-150x150.jpg 150w\" sizes=\"(max-width: 200px) 100vw, 200px\" \/><\/p>\n<p><span style=\"color: #000080;\"><strong>Question: <\/strong><\/span>From vandres: have you tried DNA correction in human HGPS fibroblasts of different ages (in vitro) and tested the normalization of their phenotype to see if it decreases as the cells age?<br \/><strong><span style=\"color: #00ccff;\">Answer:<\/span> <\/strong>No, we haven\u2019t tried correction in fibroblasts from patients of several different ages\u2014only from two different patients, which yielded similar results.<\/p>\n<p><span style=\"color: #000080;\"><strong>Question:<\/strong> <\/span>From Delphine Larrieu: Amazing effects! Would you expect a complete progerin KO in heterozygous mice?<br \/><strong><span style=\"color: #00ccff;\">Answer:<\/span> <\/strong>In the single-copy mouse, I wouldn\u2019t necessarily expect much different editing efficiencies than what we currently observe, since there should already an excess of editing agent for each progerin.<\/p>\n<p><strong><span style=\"color: #000080;\">Question: <\/span><\/strong>From Andre Monteiro Da Rocha: Do you think that reprogramming of a low percentage of cells can repair stem cell function, but might lead to adult stem cell exhaustion?<br \/><strong><span style=\"color: #00ccff;\">Answer:<\/span> <\/strong>We don\u2019t have any data that can inform an\u00a0 answer to this question.<\/p>\n<p>[\/et_pb_toggle][et_pb_toggle title=&#8221;To Dr. Colin Stewart: 8 Questions and Answers for Dr. Stewart listed below.&#8221; open_toggle_background_color=&#8221;#f7f7f7&#8243; closed_toggle_text_color=&#8221;#ffffff&#8221; closed_toggle_background_color=&#8221;#00b2e2&#8243; icon_color=&#8221;#ffc15e&#8221; open_icon_color=&#8221;#ffc15e&#8221; admin_label=&#8221;Dr. Colin Stewart&#8221; _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; title_text_color=&#8221;#00b2e2&#8243; title_font=&#8221;||||||||&#8221; background_color=&#8221;#ffffff&#8221; custom_margin=&#8221;||25px&#8221; custom_padding=&#8221;|50px||50px||true&#8221; border_width_all=&#8221;0px&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<p style=\"font-weight: 400;\"><span style=\"color: #000080;\"><strong><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-11547 alignleft size-full\" src=\"https:\/\/www.progeriaresearch.org\/wp-content\/uploads\/2020\/07\/Colin-Stewart.jpg\" alt=\"\" width=\"200\" height=\"197\" \/>Question:<\/strong><\/span> From Mei: Looks like cardiomyocyte, beautiful staining!<br \/>From Abby Buchwalter: Does dominant negative Sun1 expression disrupt all LINC complexes, including those mediated by Sun2?<br \/><strong><span style=\"color: #00ccff;\">Answer:<\/span> <\/strong>Yes there is evidence for this in vitro in that all Nesprins in the NE can be displaced by DNSUN1<\/p>\n<p style=\"font-weight: 400;\"><span style=\"color: #000080;\"><strong>Question:<\/strong><\/span> From Suet Nee Chen: how and what is the mechanism that the AAV9-SunDn capable of having a long term effects? at what age did you injected the AAV9-Sun1DN to the LMNA mutant mice?<br \/><strong><span style=\"color: #00ccff;\">Answer:<\/span> <\/strong>We injected the DNSUN1 AAV a day after inducing the Cre recombinase to delete laminA. We have data that the DNSUN1 delivered by AAV continues to be expressed I nthe cardiomyocytes a year after injection. We are doing dose \/timing\/reponse experiments now that we are back in the lab and can make our own AAV at sufficient quantiies<\/p>\n<p style=\"font-weight: 400;\"><strong><span style=\"color: #000080;\">Question:<\/span><\/strong> From Martin Berg\u00f6, Viceordf\u00f6rande Kommitt\u00e9n f\u00f6r forskning: What do you think is the relative contribution of absent lamin A versus lamin C in your Lmna knockout experiments?<br \/><span style=\"color: #00ccff;\"><strong>Answer:<\/strong><\/span> I\u2019m not sure about this but Sun1 interacts with LaminA and the in the HGPS mice the the contribution must be all LaminA (from which progerin is derived)<\/p>\n<p style=\"font-weight: 400;\"><strong><span style=\"color: #000080;\">Question:<\/span><\/strong> From jcampisi: What is the cause of death in SUN1 KO or hets?<br \/><span style=\"color: #00ccff;\"><strong>Answer:<\/strong><\/span> Good question we still don\u2019t know but currently suspect some skeletal muscle group We need t od oa decent histo-patho analysis of the dying mice<\/p>\n<p style=\"font-weight: 400;\"><strong><span style=\"color: #000080;\">Question: <\/span><\/strong>From Tom Misteli: Colin: have you seen changes in cellular stress response pathways in the Lmna\/Sun animals?<br \/><span style=\"color: #00ccff;\"><strong>Answer:<\/strong><\/span> We have not yet measured any stress response genes\/markers in these mice<\/p>\n<p style=\"font-weight: 400;\">Question: From Delphine Larrieu: Would you envisage targeting only the heart with the DNSUN1 in HGPS patients?<br \/><span style=\"color: #00ccff;\"><strong>Answer:<\/strong><\/span> That is possible given the serotype and use of a cardiomyocyte specific promoter. Those experiments are currently in progress<\/p>\n<p style=\"font-weight: 400;\"><strong><span style=\"color: #000080;\">Question:<\/span><\/strong>From Yuexia Wang: Why KO SUN1 has less benefit on homozygous G609G mice?<br \/><span style=\"color: #00ccff;\"><strong>Answer:<\/strong><\/span> Presumably because the homozygouse mice are expressing more Progerin. We see a does response \u00a0effect of heterozygotes v homozygotes in our genetic experiments<\/p>\n<p style=\"font-weight: 400;\"><strong><span style=\"color: #000080;\">Question:<\/span><\/strong>From Roland Foisner: Hi Colin, nice talk. What is the negative effect of upregulated SUN1 in HGPS. Roland<br \/><span style=\"color: #00ccff;\"><strong>Answer:<\/strong><\/span> Probably increased association of the MT network with the LINC complex. Increased Sun\/Nesprin expression in cultures cells affects nuclear positioning and cell migration<\/p>\n<p>[\/et_pb_toggle][et_pb_image src=&#8221;https:\/\/www.progeriaresearch.org\/wp-content\/uploads\/2020\/07\/Basso.Peraut-Family.jpg&#8221; title_text=&#8221;Basso.Peraut-Family&#8221; align=&#8221;center&#8221; admin_label=&#8221;families&#8221; _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; custom_margin=&#8221;5px||15px||false|false&#8221; global_colors_info=&#8221;{}&#8221;][\/et_pb_image][et_pb_toggle title=&#8221;A Sampling from the Chat Comments!&#8221; open_toggle_background_color=&#8221;#f7f7f7&#8243; closed_toggle_text_color=&#8221;#ffffff&#8221; closed_toggle_background_color=&#8221;#00b2e2&#8243; icon_color=&#8221;#ffc15e&#8221; open_icon_color=&#8221;#ffc15e&#8221; admin_label=&#8221;Sampling from the Chat Comments!&#8221; _builder_version=&#8221;4.16&#8243; _module_preset=&#8221;default&#8221; title_text_color=&#8221;#00b2e2&#8243; title_font=&#8221;||||||||&#8221; background_color=&#8221;#ffffff&#8221; custom_margin=&#8221;||25px&#8221; custom_padding=&#8221;|50px||50px||true&#8221; border_width_all=&#8221;0px&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<p>An honor to meet the Basso and Peraut family.\u00a0 Thank you for sharing your journey.\u00a0 You are truly and inspiration!<\/p>\n<p>Thank you Sami and Alexandra&#8217;s family for being part of the workshop and sharing your inspirational journey with progeria!<\/p>\n<p>Fantastic progress Eiger with approval on the horizon.<\/p>\n<p>Can we extend this session to the end of the week and keep the discussion going?\u00a0 (THANK YOU, one and all!)\u00a0<\/p>\n<p>This workshop was incredible.\u00a0 I congratulate the PRF for having the commitment to do this great activity.\u00a0 Without a doubt, this workshop filled me with a lot of knowledge for my future.\u00a0 It was amazing. Together we will find the cure!<\/p>\n<p>Always impressed by the exciting science at the PRF meetings. Many kudos to the organizers for preserving the community workshop experience even in this virtual format!<\/p>\n<p>You all ROCK!!! Thanks for this great opportunity, thinking about many years ago, now it is like to live in the future! Happy to be part of it<\/p>\n<p>I miss Dr. Collin&#8217;s guitar. Great job!<\/p>\n<p>Thank you so much for organizing this, truly the highlight of my week!<\/p>\n<p>Thanks to everyone and see you in person next year in Cambridge!!<\/p>\n<p><strong>\u00a0<\/strong><strong>Thank you all for joining us!<\/strong><\/p>\n<p>[\/et_pb_toggle][\/et_pb_column_inner][\/et_pb_row_inner][\/et_pb_column][\/et_pb_section][et_pb_section fb_built=&#8221;1&#8243; module_class=&#8221;footer&#8221; _builder_version=&#8221;4.3.4&#8243; background_color=&#8221;#29327a&#8221; custom_margin=&#8221;25px|||||&#8221; custom_padding=&#8221;0|0px|0|0px|false|false&#8221; z_index_tablet=&#8221;500&#8243; border_width_top=&#8221;12px&#8221; border_color_top=&#8221;#00b2e2&#8243; global_module=&#8221;133&#8243; locked=&#8221;off&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_row column_structure=&#8221;1_4,1_4,1_2&#8243; make_equal=&#8221;on&#8221; module_class=&#8221; et_pb_row_fullwidth&#8221; _builder_version=&#8221;4.16&#8243; width=&#8221;89%&#8221; width_tablet=&#8221;80%&#8221; width_phone=&#8221;&#8221; width_last_edited=&#8221;on|desktop&#8221; max_width=&#8221;89%&#8221; max_width_tablet=&#8221;80%&#8221; max_width_phone=&#8221;&#8221; max_width_last_edited=&#8221;on|desktop&#8221; z_index_tablet=&#8221;500&#8243; make_fullwidth=&#8221;on&#8221; width_unit=&#8221;off&#8221; custom_width_percent=&#8221;100%&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;1_4&#8243; _builder_version=&#8221;4.16&#8243; custom_padding=&#8221;|||&#8221; global_colors_info=&#8221;{}&#8221; custom_padding__hover=&#8221;|||&#8221;][et_pb_cta button_url=&#8221;https:\/\/www.progeriaresearch.org\/newsletter-signup\/&#8221; button_text=&#8221;Sign Up Now&#8221; admin_label=&#8221;Sign Up for Newsletter&#8221; module_class=&#8221;sign-btn&#8221; _builder_version=&#8221;4.16&#8243; header_font_size=&#8221;25px&#8221; background_color=&#8221;#29327a&#8221; animation_style=&#8221;slide&#8221; animation_direction=&#8221;left&#8221; animation_intensity_slide=&#8221;25%&#8221; header_font_size_tablet=&#8221;&#8221; header_font_size_phone=&#8221;30px&#8221; header_font_size_last_edited=&#8221;on|desktop&#8221; z_index_tablet=&#8221;500&#8243; border_radii=&#8221;on|25px|25px|25px|25px&#8221; global_colors_info=&#8221;{}&#8221; button_bg_color__hover_enabled=&#8221;on&#8221; button_bg_color__hover=&#8221;#8fd2ed&#8221; button_border_color__hover_enabled=&#8221;on&#8221;]<\/p>\n<h2>Sign Up<\/h2>\n<h2>for Our<\/h2>\n<h2>Newsletter!<\/h2>\n<p>[\/et_pb_cta][\/et_pb_column][et_pb_column type=&#8221;1_4&#8243; _builder_version=&#8221;4.16&#8243; custom_padding=&#8221;|||&#8221; global_colors_info=&#8221;{}&#8221; custom_padding__hover=&#8221;|||&#8221;][et_pb_cta button_url=&#8221;https:\/\/progeriaresearch.donorsupport.co\/-\/XZHJVWZR&#8221; button_text=&#8221;Donate Now&#8221; admin_label=&#8221;Together, we will find the cure!&#8221; module_class=&#8221;sign-btn&#8221; _builder_version=&#8221;4.16&#8243; header_font_size=&#8221;25px&#8221; background_color=&#8221;#29327a&#8221; animation_style=&#8221;slide&#8221; animation_direction=&#8221;left&#8221; animation_intensity_slide=&#8221;25%&#8221; header_font_size_tablet=&#8221;&#8221; header_font_size_phone=&#8221;30px&#8221; header_font_size_last_edited=&#8221;on|desktop&#8221; body_font_size_tablet=&#8221;&#8221; body_font_size_phone=&#8221;&#8221; body_font_size_last_edited=&#8221;on|desktop&#8221; z_index_tablet=&#8221;500&#8243; border_radii=&#8221;on|25px|25px|25px|25px&#8221; global_colors_info=&#8221;{}&#8221; button_bg_color__hover_enabled=&#8221;on&#8221; button_bg_color__hover=&#8221;#8fd2ed&#8221; button_border_color__hover_enabled=&#8221;on&#8221;]<\/p>\n<h2>Together, we<\/h2>\n<h2><em>WILL<\/em><\/h2>\n<h2>find the cure!<\/h2>\n<p>[\/et_pb_cta][\/et_pb_column][et_pb_column type=&#8221;1_2&#8243; _builder_version=&#8221;4.16&#8243; custom_padding=&#8221;|||&#8221; global_colors_info=&#8221;{}&#8221; 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questions-r\u00e9ponses\u00a0!<\/p>","protected":false},"author":2,"featured_media":8394,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"on","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":"","_links_to":"","_links_to_target":""},"categories":[3,2],"tags":[],"class_list":["post-8398","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-events","category-news"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>PRF\u2019s 10th International Scientific Workshop - The Progeria Research Foundation<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.progeriaresearch.org\/fr\/2020\/11\/02\/2020-workshop\/\" \/>\n<meta property=\"og:locale\" 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