
{"id":40387,"date":"2023-07-07T11:58:22","date_gmt":"2023-07-07T10:58:22","guid":{"rendered":"https:\/\/www.btitrainingcenter.com\/prgf-membrane-with-tailored-optical-properties-preserves-the-cytoprotective-effect-of-plasma-rich-in-growth-factors-in-vitro-model-of-retinal-pigment-epithelial-cells\/"},"modified":"2025-07-11T12:42:22","modified_gmt":"2025-07-11T11:42:22","slug":"prgf-membrane-with-tailored-optical-properties-preserves-the-cytoprotective-effect-of-plasma-rich-in-growth-factors-in-vitro-model-of-retinal-pigment-epithelial-cells","status":"publish","type":"post","link":"https:\/\/www.btitrainingcenter.com\/fr\/prgf-membrane-with-tailored-optical-properties-preserves-the-cytoprotective-effect-of-plasma-rich-in-growth-factors-in-vitro-model-of-retinal-pigment-epithelial-cells\/","title":{"rendered":"PRGF Membrane with Tailored Optical Properties Preserves the Cytoprotective Effect of Plasma Rich in Growth Factors: In Vitro Model of Retinal Pigment Epithelial Cells"},"content":{"rendered":"<div class=\"wpb-content-wrapper\"><p>[vc_row content_text_aligment=&#8221;left&#8221; row_background_lines=&#8221;no&#8221;][vc_column][vc_column_text css=&#8221;&#8221;]<\/p>\n<h3 class=\"title\">Abstract<\/h3>\n<div id=\"eng-abstract\" class=\"abstract-content selected\">\n<div id=\"eng-abstract\" class=\"abstract-content selected\">\n<div id=\"eng-abstract\" class=\"abstract-content selected\">\n<p>The present study evaluates the ability of a novel plasma rich in growth factors (PRGF) membrane with improved optical properties to reduce oxidative stress in retinal pigment epithelial cells (ARPE-19 cells) exposed to blue light. PRGF was obtained from three healthy donors and divided into four main groups: (i) PRGF membrane (M-PRGF), (ii) PRGF supernatant (S-PRGF), (iii) platelet-poor plasma (PPP) membrane diluted 50% with S-PRGF (M-PPP 50%), and (iv) M-PPP 50% supernatant (S-PPP 50%). ARPE-19 cells were exposed to blue light and then incubated with the different PRGF-derived formulations or control for 24 and 48 h under blue light exposure. Mitochondrial and cell viability, reactive oxygen species (ROS) production, and heme oxygenase-1 (HO-1) and ZO-1 expression were evaluated. Mitochondrial viability and cell survival were significantly increased after treatment with the different PRGF-derived formulations. ROS synthesis and HO-1 expression were significantly reduced after cell treatment with any of the PRGF-derived formulations. Furthermore, the different PRGF-derived formulations significantly increased ZO-1 expression in ARPE-19 exposed to blue light. The new PRGF membrane with improved optical properties and its supernatant (M-PPP 50% and S-PPP 50%) protected and reversed blue light-induced oxidative stress in ARPE-19 cells at levels like those of a natural PRGF membrane and its supernatant.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<p><strong class=\"sub-title\">Keywords:\u00a0<\/strong>AMD; PRGF; age-related macular degeneration; growth factors; oxidative stress; platelet rich plasma; retinal pigment epithelial cells; transparence.[\/vc_column_text][vc_empty_space][vc_column_text]<\/p>\n<h3>Figures<\/h3>\n<div id=\"eng-abstract\" class=\"abstract-content selected\">\n<p>[\/vc_column_text][vc_empty_space][\/vc_column][\/vc_row][vc_row content_placement=&#8221;middle&#8221; content_text_aligment=&#8221;center&#8221;][vc_column]<div class=\"qodef-image-gallery qodef-grid-list qodef-disable-bottom-space  qodef-ig-grid-type qodef-four-columns qodef-tiny-space  qodef-image-behavior-lightbox\">\n\t<div class=\"qodef-ig-inner qodef-outer-space\">\n\t\t\t\t\t<div class=\"qodef-ig-image qodef-item-space\">\n\t\t\t\t<div class=\"qodef-ig-image-inner\">\n\t\t\t\t\t\t\t\t\t\t\t<a itemprop=\"image\" class=\"qodef-ig-lightbox\" href=\"https:\/\/www.btitrainingcenter.com\/wp-content\/uploads\/2021\/08\/ijms-24-11195-g001.jpg\" data-rel=\"prettyPhoto[image_gallery_pretty_photo-924]\" title=\"&lt;strong&gt;Figure 1&lt;\/strong&gt; Evaluation of the different blood-derived formulations in ARPE-19 cells in the protection assay. Cell survival as measured by DNA concentration (A), ROS production (B), mitochondrial viability measured by WST-1 (C), ratio of ROS expression to cell number (ROS\/DNA) (D), and ratio of ROS expression to mitochondrial viability (ROS\/WST) (E). Treatment groups that do not share at least one letter are statistically significant at p &lt; 0.05.\">\n\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.btitrainingcenter.com\/wp-content\/uploads\/2021\/08\/ijms-24-11195-g001-200x200.jpg\" alt=\"\" width=\"200\" height=\"200\" \/>\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t\t\t\t<div class=\"qodef-ig-image qodef-item-space\">\n\t\t\t\t<div class=\"qodef-ig-image-inner\">\n\t\t\t\t\t\t\t\t\t\t\t<a itemprop=\"image\" class=\"qodef-ig-lightbox\" href=\"https:\/\/www.btitrainingcenter.com\/wp-content\/uploads\/2021\/08\/ijms-24-11195-g002.jpg\" data-rel=\"prettyPhoto[image_gallery_pretty_photo-924]\" title=\"&lt;strong&gt;Figure 2&lt;\/strong&gt; Immunofluorescence expression of heme oxygenase 1 (HO-1) and ZO-1 in ARPE-19 cells used in the protection assay. Representative immunofluorescence images of Hoechst 33342, HO-1, and ZO-1 in ARPE-19 cells at t0 and after incubation with the different treatments (M-PRGF, S-PRGF, M-PPP 50%, and S-PPP 50%) and control (t48) for 48 h while maintaining exposure to blue light. ARPE-19 cells showed continuous labeling of the cell membrane for ZO-1 immunofluorescence at basal state (t0). After exposure of ARPE-19 cells to blue light for 48 h (t48), a marked loss of ZO-1 staining was observed at the periphery of the cells (white arrowhead), increasing its cytoplasmic localization. In addition, ARPE-19 cell-free spaces were observed, suggesting a partial loss of cells after exposure to blue light for 48 h (asterisk). Treatment of ARPE-19 with the different plasma-derived formulations reduced the delocalization of ZO-1 staining after 48 h of blue light treatment. HO-1 expression was significantly increased after 48 h of exposure to blue light. The different blood-derived formulations reduced the expression of HO-1 compared to the control group t48. Treatment groups that do not share at least one letter are statistically significant at p &lt; 0.05. Scale bar for Hoechst and HO-1 images: 200 \u00b5m; and for ZO-1 images: 800 \u00b5m.\">\n\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.btitrainingcenter.com\/wp-content\/uploads\/2021\/08\/ijms-24-11195-g002-200x200.jpg\" alt=\"\" width=\"200\" height=\"200\" \/>\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t\t\t\t<div class=\"qodef-ig-image qodef-item-space\">\n\t\t\t\t<div class=\"qodef-ig-image-inner\">\n\t\t\t\t\t\t\t\t\t\t\t<a itemprop=\"image\" class=\"qodef-ig-lightbox\" href=\"https:\/\/www.btitrainingcenter.com\/wp-content\/uploads\/2021\/08\/ijms-24-11195-g003.jpg\" data-rel=\"prettyPhoto[image_gallery_pretty_photo-924]\" title=\"&lt;strong&gt;Figure 3&lt;\/strong&gt; Evaluation of the different blood-derived formulations in ARPE -19 cells in the reversion assay. Cell survival as measured by DNA concentration (A), ROS production (B), mitochondrial viability as determined by WST-1 (C), ratio of ROS expression to the number of cells (ROS\/DNA) (D), and ratio of ROS expression to mitochondrial viability (ROS\/WST) (E). Treatment groups that do not share at least one letter are statistically significant at p &lt; 0.05.\">\n\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.btitrainingcenter.com\/wp-content\/uploads\/2021\/08\/ijms-24-11195-g003-200x200.jpg\" alt=\"\" width=\"200\" height=\"200\" \/>\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t\t\t\t<div class=\"qodef-ig-image qodef-item-space\">\n\t\t\t\t<div class=\"qodef-ig-image-inner\">\n\t\t\t\t\t\t\t\t\t\t\t<a itemprop=\"image\" class=\"qodef-ig-lightbox\" href=\"https:\/\/www.btitrainingcenter.com\/wp-content\/uploads\/2021\/08\/ijms-24-11195-g004.jpg\" data-rel=\"prettyPhoto[image_gallery_pretty_photo-924]\" title=\"&lt;strong&gt;Figure 4&lt;\/strong&gt; Immunofluorescence expression of heme oxygenase 1 (HO-1) and ZO-1 by ARPE-19 cells used in the reversion assay. Representative immunofluorescence images of Hoechst 33342, HO-1, and ZO-1 in ARPE-19 cells at t0, after being exposed for 24 h to blue light (t24) and then incubated with the different treatments (M-PRGF, S-PRGF, M-PPP 50%, and S-PPP 50%) and control (t24 + 24) for another 24 h while exposed to blue light. Intense ZO-1 immunostaining was observed at the cell membrane of ARPE-19 cells at basal state (t0) and after exposure to blue light for 24 h (t24). However, ZO-1 immunofluorescence was reduced at the cell periphery after exposure for another 24 h to blue light (t24 + 24), showing, at the same time, an increase in cytoplasmic ZO-1 immunostaining. The different blood-derived formulations increased ZO-1 immunostaining in the membrane of ARPE-19 cells compared to cells in the t24 + 24 group; however, cytoplasmic ZO-1 staining was also increased in cells treated with any of the blood-derived formulations compared to the control groups. As for HO-1 immunostaining, each of the blood-derived formulations (M-PRGF, S-PRGF, M-PPP 50%, and S-PPP 50%) reduced HO-1 expression after exposure to blue light for an additional 24 h (t24 + 24). Furthermore, M-PPP 50% maintained HO-1 expression in ARPE-19 cells regarding the t24 group. Treatment groups that do not share at least one letter are statistically significant at p &lt; 0.05. Scale bar for Hoechst and HO-1 images: 200 \u00b5m; and for ZO-1 images: 800 \u00b5m.\">\n\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.btitrainingcenter.com\/wp-content\/uploads\/2021\/08\/ijms-24-11195-g004-200x200.jpg\" alt=\"\" width=\"200\" height=\"200\" \/>\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t\t\t\t<div class=\"qodef-ig-image qodef-item-space\">\n\t\t\t\t<div class=\"qodef-ig-image-inner\">\n\t\t\t\t\t\t\t\t\t\t\t<a itemprop=\"image\" class=\"qodef-ig-lightbox\" href=\"https:\/\/www.btitrainingcenter.com\/wp-content\/uploads\/2021\/08\/ijms-24-11195-g005.jpg\" data-rel=\"prettyPhoto[image_gallery_pretty_photo-924]\" title=\"&lt;strong&gt;Figure 5&lt;\/strong&gt; Diagram of the different formulations used to carry out this work using PRGF\u00ae-Endoret\u00ae technology. After blood collection, it was centrifuged, and then, the entire plasma column was collected over the leukocyte layer (PRGF). The PRGF volume was then divided to obtain the different formulations used in the present study. One part was activated with calcium chloride and incubated at 37 \u00b0C for 20 min to obtain a membrane (M-PRGF) or for 60 min to obtain a supernatant (S-PRGF). Another part of the PRGF was filtered with a 0.22 \u00b5m PES filter obtaining a platelet-poor plasma (PPP) to produce the membrane with improved optical properties. It was then mixed in equal parts with S-PRGF (50% PPP and 50% S-PRGF), activated with calcium chloride, and incubated at 37 \u00b0C for 20 min to obtain a membrane (M-PPP 50%) or for 60 min to obtain a supernatant (S-PPP 50%).\">\n\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.btitrainingcenter.com\/wp-content\/uploads\/2021\/08\/ijms-24-11195-g005-200x200.jpg\" alt=\"\" width=\"200\" height=\"200\" \/>\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t\t<\/div>\n<\/div>[vc_empty_space height=&#8221;50px&#8221;][\/vc_column][\/vc_row][vc_row][vc_column]<a itemprop=\"url\" href=\"https:\/\/www.btitrainingcenter.com\/wp-content\/uploads\/2021\/08\/22-ijms-24-11195.pdf\" target=\"_blank\"  class=\"qodef-btn qodef-btn-medium qodef-btn-solid btnWebRosa2\"  >\n    <span class=\"qodef-btn-text\">T\u00e9l\u00e9charger l&#039;article<\/span>\n    <\/a>[\/vc_column][\/vc_row][vc_row][vc_column][vc_column_text]<\/p>\n<\/div>\n<p>[\/vc_column_text][\/vc_column][\/vc_row]<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"<p><strong>Int J Mol Sci. 2023 Jul 7;24(13):11195.<\/strong><br \/>\nThe present study evaluates the ability of a novel plasma rich in growth factors (PRGF) membrane with improved optical properties to reduce oxidative stress in retinal pigment epithelial cells (ARPE-19 cells) exposed to blue light. PRGF was obtained from three healthy donors and divided into four main groups: (i) PRGF membrane (M-PRGF), (ii) PRGF supernatant (S-PRGF), (iii) platelet-poor plasma (PPP) membrane diluted 50% with S-PRGF (M-PPP 50%), and (iv) M-PPP 50% supernatant (S-PPP 50%). ARPE-19 cells were exposed to blue light and then incubated with the different PRGF-derived formulations or control for 24 and 48 h under blue light exposure. Mitochondrial and cell viability, reactive oxygen species (ROS) production, and heme oxygenase-1 (HO-1) and ZO-1 expression were evaluated. <\/p>\n","protected":false},"author":2002,"featured_media":40375,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[155],"tags":[],"class_list":["post-40387","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-medecine-regenerative"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.btitrainingcenter.com\/fr\/wp-json\/wp\/v2\/posts\/40387","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.btitrainingcenter.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.btitrainingcenter.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.btitrainingcenter.com\/fr\/wp-json\/wp\/v2\/users\/2002"}],"replies":[{"embeddable":true,"href":"https:\/\/www.btitrainingcenter.com\/fr\/wp-json\/wp\/v2\/comments?post=40387"}],"version-history":[{"count":1,"href":"https:\/\/www.btitrainingcenter.com\/fr\/wp-json\/wp\/v2\/posts\/40387\/revisions"}],"predecessor-version":[{"id":40388,"href":"https:\/\/www.btitrainingcenter.com\/fr\/wp-json\/wp\/v2\/posts\/40387\/revisions\/40388"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.btitrainingcenter.com\/fr\/wp-json\/wp\/v2\/media\/40375"}],"wp:attachment":[{"href":"https:\/\/www.btitrainingcenter.com\/fr\/wp-json\/wp\/v2\/media?parent=40387"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.btitrainingcenter.com\/fr\/wp-json\/wp\/v2\/categories?post=40387"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.btitrainingcenter.com\/fr\/wp-json\/wp\/v2\/tags?post=40387"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}