{"id":1828,"date":"2010-02-06T18:25:00","date_gmt":"2010-02-06T23:25:00","guid":{"rendered":"https:\/\/nanobiotix.com\/resource\/silica-nanoparticles-simon-et-al\/"},"modified":"2024-10-29T08:50:32","modified_gmt":"2024-10-29T12:50:32","slug":"silica-nanoparticles-simon-et-al","status":"publish","type":"resource","link":"https:\/\/nanobiotix.com\/fr\/resource\/silica-nanoparticles-simon-et-al\/","title":{"rendered":"Silica Nanoparticles &#8211; Simon et al."},"content":{"rendered":"<p>[vc_row padding_top=&#8221;0&#8243; padding_bottom=&#8221;0&#8243; section_container_layout=&#8221;full-width&#8221; remove_horizontal_padding=&#8221;yes&#8221; module_type=&#8221;bg-color&#8221; gutter_size=&#8221;yes&#8221; equal_height=&#8221;yes&#8221; bg_color=&#8221;#28282e&#8221;][vc_column][vc_row_inner padding_top=&#8221;0&#8243; padding_bottom=&#8221;0&#8243; gutter_size=&#8221;yes&#8221; equal_height=&#8221;yes&#8221;][vc_column_inner column_paddings=&#8221;105&#8243; column_position_vertical=&#8221;middle&#8221; column_min_height=&#8221;700&#8243; column_min_height_sm=&#8221;400&#8243; column_min_height_xs=&#8221;350&#8243; module_type=&#8221;bg-image&#8221; bg_image=&#8221;99&#8243; mask_fx=&#8221;yes-mask&#8221; mask_color_mode=&#8221;palette&#8221; mask_bg_color_palette=&#8221;main-mask&#8221; animation_fx=&#8221;yes-animation&#8221; animation_delay=&#8221;200&#8243; animation_offset_scroll_down=&#8221;90&#8243; width=&#8221;1\/2&#8243; animation_in=&#8221;fadeInUp&#8221;][vc_empty_space height=&#8221;60px&#8221; responsive_lg=&#8221;hidden&#8221; responsive_md=&#8221;hidden&#8221;][az_box_icons box_icon_title=&#8221;Authors&#8221; box_icon_color_mode=&#8221;on-the-fly&#8221; icon_visibility=&#8221;yes-icon&#8221; icon_type=&#8221;font&#8221; icon=&#8221;fa fa-edit&#8221; icon_color_mode=&#8221;on-the-fly&#8221; icon_size=&#8221;50&#8243; box_icon_color=&#8221;#ffffff&#8221; icon_color=&#8221;#ffffff&#8221;]Virginie Simon<span class=\"notes up\">1<\/span>, Corinne Devaux<span class=\"notes up\">1<\/span>, Audrey Darmon<span class=\"notes up\">1<\/span>, Thibault Donnet<span class=\"notes up\">1<\/span>, Edouard Thi\u00e9not<span class=\"notes up\">1<\/span>, Matthieu Germain<span class=\"notes up\">1<\/span>, J\u00e9rome Honnorat<span class=\"notes up\">2<\/span>, Alex Duval<span class=\"notes up\">3<\/span>, Agn\u00e8s Pottier<span class=\"notes up\">1<\/span>, Elsa Borghi<span class=\"notes up\">1<\/span>, Laurent Levy<span class=\"notes up\">1<\/span> and Julie Marill*<span class=\"notes up\">1<\/span> <span class=\"notes\">1 &#8211; Nanobiotix SA, rue de Wattignies, Paris, France 2 &#8211; UMR Inserm-UCBL2 U842, Facult\u00e9 Laennec, rue G. Paradin, Lyon, France 3 &#8211; UMR S893, rue du faubourg Saint Antoine, Paris, France<\/span>[\/az_box_icons][vc_empty_space height=&#8221;60px&#8221; responsive_lg=&#8221;hidden&#8221; responsive_md=&#8221;hidden&#8221;][\/vc_column_inner][vc_column_inner column_paddings=&#8221;105&#8243; column_position_vertical=&#8221;middle&#8221; module_type=&#8221;bg-color&#8221; animation_fx=&#8221;yes-animation&#8221; animation_delay=&#8221;300&#8243; animation_offset_scroll_down=&#8221;90&#8243; width=&#8221;1\/2&#8243; bg_color=&#8221;#ffffff&#8221; animation_in=&#8221;fadeInUp&#8221;][vc_empty_space height=&#8221;60px&#8221; responsive_lg=&#8221;hidden&#8221; responsive_md=&#8221;hidden&#8221;][az_box_icons box_icon_title=&#8221;Summary&#8221; icon_visibility=&#8221;yes-icon&#8221; icon_type=&#8221;font&#8221; icon=&#8221;az-icon az-icon-layers2&#8243; icon_color_mode=&#8221;on-the-fly&#8221; icon_color=&#8221;#28282e&#8221; icon_size=&#8221;50&#8243;]Protoporphyrin IX (Pp IX) silica nanoparticles, developed for effective use in photodynamic therapy (PDT), were explored in in vitro and in vivo models with the ambition to improve knowledge on the role of biological factors in the photodamage. Pp IX silica nanoparticles are found efficient at temperature with extreme metabolic downregulation, which suggest a high proportion of passive internalization. For the first time, clearance of silica nanoparticles on tumor cells is established. Cell viability assessment in six tumor cell lines is reported. In all tumor types, Pp IX silica nanoparticles are more efficient than free Pp IX. A strong fluorescence signal of reactive oxygen species generation colocalized with Pp IX silica nanoparticles, correlates with 100% of cell death. In vivo studies performed in HCT 116, A549 and glioblastoma multiforme tumors-bearing mice show tumor uptake of Pp IX silica nanoparticles with better tumor accumulation than the control alone, highlighting a high selectivity for tumor tissues. As observed in in vitro tests, tumor cell type is likely a major determinant but tumor microenvironment could more influence this differential time accumulation dynamic. The present results strongly suggest that Pp IX silica nanoparticles may be involved in new alternative local applications of PDT.[\/az_box_icons][vc_empty_space height=&#8221;60px&#8221; responsive_lg=&#8221;hidden&#8221; responsive_md=&#8221;hidden&#8221;][\/vc_column_inner][\/vc_row_inner][\/vc_column][\/vc_row]<\/p>\n","protected":false},"featured_media":0,"menu_order":0,"template":"","meta":{"_acf_changed":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"wds_primary_resource_type":0,"wds_primary_data_type":0,"wds_primary_indication":0,"wds_primary_platform_type":0,"footnotes":""},"resource_type":[23,24],"data_type":[30],"indication":[],"platform_type":[36],"class_list":["post-1828","resource","type-resource","status-publish","hentry","resource_type-no-rights","resource_type-publications","data_type-miscellaneous","platform_type-nbtxr3"],"acf":[],"_links":{"self":[{"href":"https:\/\/nanobiotix.com\/fr\/wp-json\/wp\/v2\/resource\/1828","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/nanobiotix.com\/fr\/wp-json\/wp\/v2\/resource"}],"about":[{"href":"https:\/\/nanobiotix.com\/fr\/wp-json\/wp\/v2\/types\/resource"}],"version-history":[{"count":0,"href":"https:\/\/nanobiotix.com\/fr\/wp-json\/wp\/v2\/resource\/1828\/revisions"}],"wp:attachment":[{"href":"https:\/\/nanobiotix.com\/fr\/wp-json\/wp\/v2\/media?parent=1828"}],"wp:term":[{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/nanobiotix.com\/fr\/wp-json\/wp\/v2\/resource_type?post=1828"},{"taxonomy":"data_type","embeddable":true,"href":"https:\/\/nanobiotix.com\/fr\/wp-json\/wp\/v2\/data_type?post=1828"},{"taxonomy":"indication","embeddable":true,"href":"https:\/\/nanobiotix.com\/fr\/wp-json\/wp\/v2\/indication?post=1828"},{"taxonomy":"platform_type","embeddable":true,"href":"https:\/\/nanobiotix.com\/fr\/wp-json\/wp\/v2\/platform_type?post=1828"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}