{"id":1456,"date":"2021-03-17T13:33:28","date_gmt":"2021-03-17T17:33:28","guid":{"rendered":"http:\/\/haidut.me\/?p=1456"},"modified":"2021-04-12T11:36:23","modified_gmt":"2021-04-12T15:36:23","slug":"vitamin-d-can-force-cancer-cells-to-differentiate-back-into-normal","status":"publish","type":"post","link":"https:\/\/haidut.me\/?p=1456","title":{"rendered":"Vitamin D can force cancer cells to differentiate back into normal"},"content":{"rendered":"<p>Danny and I already discussed this topic on a recent podcast, but I decided to post the studies anyways, considering how important the topic is. While progesterone and testosterone are the most well-known differentiating factors in humans, the role of vitamin D has gone largely unnoticed. The studies below demonstrate that vitamin D is a powerful differentiating agent, and can cause the regression of even advanced tumors when used in doses proven to be safe for most people (5,000 IU &#8211; 10,000 IU daily). The studies cover both in-vitro and in-vivo models and the third link is a human case report. Importantly, at least two of the studies (second and third to last) demonstrate that the &#8220;inactive&#8221; cholecalciferol (25-OH-D3, commonly used as a supplement) is just as active in terms of differentiating effects as the &#8220;active&#8221; form known as 1,25-OH-D3 (calcitriol). Moreover, cholecalciferol has a much lower risk of causing hypercalcemia compared to calcitriol, and in fact may lower elevated levels of calcitriol that are seen in many chronic inflammatory conditions.<\/p>\n<p><a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/8286848\/\">https:\/\/pubmed.ncbi.nlm.nih.gov\/8286848\/<\/a><\/p>\n<p><a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/8384998\/\">https:\/\/pubmed.ncbi.nlm.nih.gov\/8384998\/<\/a><\/p>\n<p><a href=\"https:\/\/www.longdom.org\/open-access\/longterm-remission-of-adenoid-cystic-tongue-carcinoma-with-low-dose-naltrexone-and-vitamin-d-a-case-report-2247-2452.1000662.pdf\">https:\/\/www.longdom.org\/open-access\/longterm-remission-of-adenoid-cystic-tongue-carcinoma-with-low-dose-naltrexone-and-vitamin-d-a-case-report-2247-2452.1000662.pdf<\/a><\/p>\n<p><a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/8202625\/\">https:\/\/pubmed.ncbi.nlm.nih.gov\/8202625\/<\/a><\/p>\n<p><a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/32069830\/\">https:\/\/pubmed.ncbi.nlm.nih.gov\/32069830\/<\/a><\/p>\n<p><a href=\"https:\/\/www.discoverymedicine.com\/Julian-L-Ambrus\/2009\/07\/26\/attempts-to-induce-differentiation-of-neoplastic-cells-to-normal\/\">https:\/\/www.discoverymedicine.com\/Julian-L-Ambrus\/2009\/07\/26\/attempts-to-induce-differentiation-of-neoplastic-cells-to-normal\/<\/a><\/p>\n<p>&#8220;&#8230;Several investigators reported that 1,25-dihydroxyvitamin D<sub><sup>3<\/sup><\/sub>\u00a0(vD<sub><sup>3<\/sup><\/sub>) and <strong>its <span style=\"color: #ff0000;\">active metabolite cholecalciferol<\/span> (calcitriol, DHCC) <span style=\"color: #ff0000;\">causes monocytic differentiation of leukemia cells<\/span><\/strong>. This appears to be due in part to down-regulation of expression of cell cycle related proto-oncogenes (e.g., c-myc). <strong>Differentiation inducing effect was also seen against certain solid tumors including prostatic cancer and squamous cell carcinoma<\/strong>.&#8221;<\/p>\n<p>&#8220;&#8230;<strong>In a number of studies, vD<sub><sup>3<\/sup><\/sub><\/strong>\u00a0was evaluated as a growth inhibitor. In tissue culture studies it <strong>was found effective in\u00a0<a title=\"osteosarcoma\" href=\"https:\/\/www.discoverymedicine.com\/category\/medical-specialties\/oncology\/sarcoma\/osteosarcoma\/\">osteosarcoma<\/a>, squamous cell carcinoma,\u00a0<a title=\"breast cancer\" href=\"https:\/\/www.discoverymedicine.com\/category\/medical-specialties\/oncology\/gynecological-cancer\/breast-cancer\/\">breast cancer<\/a>,\u00a0<a title=\"prostate cancer\" href=\"https:\/\/www.discoverymedicine.com\/category\/medical-specialties\/oncology\/prostate-cancer\/\">prostate cancer<\/a>, and leukemias<\/strong>.&#8221;<\/p>\n<p><a href=\"https:\/\/www.sciencedirect.com\/science\/article\/abs\/pii\/096007609090435N\">https:\/\/www.sciencedirect.com\/science\/article\/abs\/pii\/096007609090435N<\/a><\/p>\n<p>&#8220;&#8230;<strong><span style=\"color: #ff0000;\">The antiproliferative effect of 1,25(OH)2D 3 has been confirmed in vivo<\/span>. In high doses the sterol inhibits growth of human malignant melanoma and colonic cancer<\/strong> xenografts in immune suppressed mice [23] and of nitrosomethylurea-induced <strong>mammary tumours<\/strong> in rats [24], while administration of I~(OH)D 3 <strong>reduced the number of lung metastases<\/strong> after implantation <strong>of Lewis lung carcinoma cells<\/strong> into mice [25]. The fact that 1,25(OH)2D 3 stimulates fibronectin synthesis in several human cancer cell lines may be related to the <span style=\"color: #ff0000;\"><strong><span style=\"color: #000000;\">possible<\/span> antimetastatic effect of the hormone<\/strong><\/span> [26].&#8221;<\/p>\n<p>&#8220;&#8230;From the data currently available <strong>it seems clear that 1,25(OH)2D3 has a regulatory effect on cell growth and proliferation<\/strong>. However, high doses of the sterol are needed. Therefore, it remains to be established whether 1,25(OH)2D3 can produce long-term antitumour effects without unacceptable toxicity, like the development of hypercalcemia. In this light, the recent development of new vitamin D analogues which have potent effects on cell proliferation and differentiation in vitro without inducing severe hypercalcemia is of interest [27-29].&#8221;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Danny and I already discussed this topic on a recent podcast, but I decided to post the&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[1494,55,50,1495,1496,49,162],"class_list":["post-1456","post","type-post","status-publish","format-standard","hentry","category-science","tag-calcitirol","tag-cancer","tag-cholecalciferol","tag-differentiation","tag-metastases","tag-vitamin-d","tag-vitamin-d3","wpcat-2-id"],"_links":{"self":[{"href":"https:\/\/haidut.me\/index.php?rest_route=\/wp\/v2\/posts\/1456","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/haidut.me\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/haidut.me\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/haidut.me\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/haidut.me\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1456"}],"version-history":[{"count":6,"href":"https:\/\/haidut.me\/index.php?rest_route=\/wp\/v2\/posts\/1456\/revisions"}],"predecessor-version":[{"id":1472,"href":"https:\/\/haidut.me\/index.php?rest_route=\/wp\/v2\/posts\/1456\/revisions\/1472"}],"wp:attachment":[{"href":"https:\/\/haidut.me\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1456"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/haidut.me\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1456"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/haidut.me\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1456"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}