{"id":369915,"date":"2026-08-20T16:00:31","date_gmt":"2026-08-20T10:30:31","guid":{"rendered":"https:\/\/forumias.com\/blog\/?p=369915"},"modified":"2026-08-20T16:00:31","modified_gmt":"2026-08-20T10:30:31","slug":"rk-251","status":"publish","type":"post","link":"https:\/\/forumias.com\/blog\/rk-251\/","title":{"rendered":"RK-251"},"content":{"rendered":"<div class=\"content-box-green\">\n<p><strong>News:<\/strong> Scientists in India have developed RK-251, a smart cancer drug that activates mainly inside cancer cells and may reduce harm to healthy cells.<\/p>\n<\/div>\n<h2 class=\"red-h2-box\">About RK-251<\/h2>\n<figure id=\"attachment_369924\" aria-describedby=\"caption-attachment-369924\" style=\"width: 383px\" class=\"wp-caption aligncenter\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" class=\" wp-image-369924\" src=\"https:\/\/i0.wp.com\/forumias.com\/blog\/wp-content\/uploads\/2026\/08\/Source-NOA.jpg?resize=383%2C253&#038;ssl=1\" alt=\"RK-251\" width=\"383\" height=\"253\" srcset=\"https:\/\/i0.wp.com\/forumias.com\/blog\/wp-content\/uploads\/2026\/08\/Source-NOA.jpg?resize=300%2C198&amp;ssl=1 300w, https:\/\/i0.wp.com\/forumias.com\/blog\/wp-content\/uploads\/2026\/08\/Source-NOA.jpg?resize=768%2C507&amp;ssl=1 768w, https:\/\/i0.wp.com\/forumias.com\/blog\/wp-content\/uploads\/2026\/08\/Source-NOA.jpg?w=899&amp;ssl=1 899w\" sizes=\"auto, (max-width: 383px) 100vw, 383px\" \/><figcaption id=\"caption-attachment-369924\" class=\"wp-caption-text\">Source &#8211; NOA<\/figcaption><\/figure>\n<ul>\n<li><strong>RK-251<\/strong>\u00a0is a <strong>smart cancer drug<\/strong> designed to remain relatively <strong>inactive in normal tissues and activate in cancer cells.<\/strong><\/li>\n<li><strong>Developed by:<\/strong> It was developed through <strong>collaborative research<\/strong> led by <strong>Dr. Asis Bala of the Institute of Advanced Study in Science and Technology (IASST)<\/strong> and <strong>Dr. K.P. Bhabak of the Indian Institute of Technology-Guwahati.<\/strong><\/li>\n<li><strong>Working Mechanism:<\/strong>\n<ul>\n<li><strong>Presence of ROS:<\/strong> Cancer cells often contain <strong>high levels of Reactive Oxygen Species (ROS), molecules that can cause cellular damage.<\/strong><\/li>\n<li><strong>Activation of RK-251:<\/strong> When <strong>RK-251 enters a cancer cell, the high levels of ROS trigger its activation.<\/strong><\/li>\n<li><strong>Release of anticancer compound:<\/strong> Once activated, <strong>RK-251 releases NBDHEX, an anticancer compound.<\/strong><\/li>\n<li><strong>Action against cancer cells:<\/strong> <strong>NBDHEX targets proteins that many cancer cells use to survive<\/strong> and resist treatment, thereby <strong>producing its anticancer effect.<\/strong><\/li>\n<\/ul>\n<\/li>\n<li><strong>Key Features:<\/strong>\n<ul>\n<li><strong>Targeted action:<\/strong> In preclinical studies, <strong>RK-251 showed strong activity against triple-negative breast cancer cells,<\/strong> with <strong>substantially lower effects on healthy cells.<\/strong><\/li>\n<li><strong>Fluorescence response:<\/strong> The drug showed the <strong>desired fluorescence in the presence of ROS,<\/strong> <strong>indicating its activation in an ROS-rich environment.<\/strong><\/li>\n<li><strong>Preclinical safety findings:<\/strong> Studies using <strong>zebrafish embryos (Danio rerio)<\/strong> showed <strong>no obvious signs of toxicity.\u00a0<\/strong><\/li>\n<li><strong>Current Stage:<\/strong> RK-251 <strong>remains at the preclinical research stage,<\/strong> and further studies are required before human clinical trials.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>News: Scientists in India have developed RK-251, a smart cancer drug that activates mainly inside cancer cells and may reduce harm to healthy cells. About RK-251 RK-251\u00a0is a smart cancer drug designed to remain relatively inactive in normal tissues and activate in cancer cells. Developed by: It was developed through collaborative research led by Dr.&hellip; <a class=\"more-link\" href=\"https:\/\/forumias.com\/blog\/rk-251\/\">Continue reading <span class=\"screen-reader-text\">RK-251<\/span><\/a><\/p>\n","protected":false},"author":10401,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"footnotes":""},"categories":[1566,1738,12039],"tags":[11872],"class_list":["post-369915","post","type-post","status-publish","format-standard","hentry","category-daily-factly-articles","category-science-and-technology-daily-factly-articles","category-knolls","tag-9pm-daily-factly","entry"],"jetpack_featured_media_url":"","views":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/posts\/369915","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/users\/10401"}],"replies":[{"embeddable":true,"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/comments?post=369915"}],"version-history":[{"count":0,"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/posts\/369915\/revisions"}],"wp:attachment":[{"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/media?parent=369915"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/categories?post=369915"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/tags?post=369915"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}