{"id":12262,"date":"2015-01-22T11:58:26","date_gmt":"2015-01-22T02:58:26","guid":{"rendered":"http:\/\/mus0.mus.rbrc.jp\/?page_id=12262"},"modified":"2021-04-07T13:49:18","modified_gmt":"2021-04-07T04:49:18","slug":"jan_2015_mm","status":"publish","type":"page","link":"http:\/\/mus.brc.riken.jp\/ja\/mouse_of_month\/jan_2015_mm","title":{"rendered":"January 2015 Clarifying the role of Fbxw7 in cancer"},"content":{"rendered":"<p><a href=\"\/ja\/mouse_of_month#2014\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-12264\" alt=\"Title201501\" src=\"\/ja\/wp-content\/uploads\/2015\/01\/Title201501.png\" width=\"502\" height=\"79\" srcset=\"http:\/\/mus.brc.riken.jp\/ja\/wp-content\/uploads\/2015\/01\/Title201501.png 502w, http:\/\/mus.brc.riken.jp\/ja\/wp-content\/uploads\/2015\/01\/Title201501-150x23.png 150w, http:\/\/mus.brc.riken.jp\/ja\/wp-content\/uploads\/2015\/01\/Title201501-400x62.png 400w\" sizes=\"auto, (max-width: 502px) 100vw, 502px\" \/><\/a><\/p>\n<table width=\"700\">\n<tbody>\n<tr>\n<td style=\"background-color: #ffffff; border: 0px; text-align: center;\">\n<p align=\"center\"><span style=\"font-size: x-large; line-height: 130%;\"><b>Clarifying the role of Fbxw7 in cancer<\/b><\/span><\/p>\n<h5><a href=\"https:\/\/brc.riken.jp\/mus\/RBRC06393\">B6;129P2-<i>Fbxw7<\/i><i>&lt;tm1Kei&gt;<\/i>\u00a0(RBRC06393, floxed mouse)<\/a><\/h5>\n<h5><a href=\"https:\/\/brc.riken.jp\/mus\/RBRC06394\">B6;129P2-<i>Fbxw7&lt;tm1Kin&gt;\u00a0<\/i>(RBRC06394, knockout mouse)<\/a><\/h5>\n<p style=\"text-align: center;\"><a href=\"\/ja\/wp-content\/uploads\/2015\/01\/201501.png\" target=\"_blank\" rel=\"noopener noreferrer\"><img loading=\"lazy\" decoding=\"async\" class=\" wp-image-12265 aligncenter\" alt=\"Print\" src=\"\/ja\/wp-content\/uploads\/2015\/01\/201501.png\" width=\"536\" height=\"246\" srcset=\"http:\/\/mus.brc.riken.jp\/ja\/wp-content\/uploads\/2015\/01\/201501.png 536w, http:\/\/mus.brc.riken.jp\/ja\/wp-content\/uploads\/2015\/01\/201501-150x68.png 150w, http:\/\/mus.brc.riken.jp\/ja\/wp-content\/uploads\/2015\/01\/201501-400x183.png 400w\" sizes=\"auto, (max-width: 536px) 100vw, 536px\" \/><\/a><\/p>\n<p style=\"text-align: right;\" align=\"left\">Courtesy of \u00a0Keiichi Nakayama, M.D., Ph.D.<\/p>\n<p align=\"left\">Gross appearance of the lungs of wild-type mice that had been reconstituted with bone marrow (BM) cells from CAG-EGFP<em>\/Fbxw7<\/em><sup>F\/F <\/sup>(Control) or CAG<i>&#8211;<\/i>EGFP\/Mx1-Cre\/<i>Fbxw7<\/i><sup>F\/F<\/sup> (Fbxw7 cKO) mice and injected with pIpC and mouse B16F10 melanoma cells (2.0 \u00d7 10<sup>5<\/sup>). After 2 weeks, the animals were killed and the lungs were removed and fixed in Bouin\u2019s solution. Scale bar, 10 mm.<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<table width=\"700\">\n<tbody>\n<tr>\n<td style=\"border: 5px; background-color: #ffffff; text-align: left; white-space: normal; text-indent: 1em;\" valign=\"top\">F-box and WD-40 domain protein 7 (Fbxw7, also known as Fbw7) is an E3 ubiquitin ligase and the component of an F-box protein of the Skp, Cullin, F-box containing complex (SCF complex). Fbxw7 targets substrate proteins including c-Myc, cyclin E, and Notch for ubiquitination and degradation. Nakayama and colleagues generated mice with Fbxw7 conditionally deleted in the T cell lineage and showed that loss of Fbxw7 resulted in c-Myc accumulation, which led to hyperproliferation of immature T cells but apoptosis of mature T cells [1, 2].<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 5px; background-color: #ffffff; text-align: left; white-space: normal; text-indent: 1em;\" valign=\"top\">Cancer-initiating cells (CICs) are quiescent cells that are required for cancer initiation and maintenance. As most anti-cancer drugs target dividing cells, CICs are resistant to such therapies, resulting in disease relapse. Using a mouse model of chronic myeloid leukemia, the group revealed that ablation of Fbxw7 in leukemia-initiating cells abrogated their quiescence via c-Myc accumulation and increased their sensitivity to anti-cancer drugs. Combination therapy with Fbxw7 ablation and anti-cancer drugs was effective for leukemia-initiating cell depletion in mice [3, 4]. A recent report focused on the host environment and revealed the suppressive role of Fbxw7 in cancer metastasis via C-C motif chemokine 2 [5], showing Fbxw7 to be a therapeutic target of many kinds of human cancer.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<table width=\"700\">\n<tbody>\n<tr>\n<td style=\"border: 0px; background-color: #ffffff; text-align: right; white-space: nowrap;\" valign=\"top\">Depositor<\/td>\n<td style=\"border: 0px; background-color: #ffffff; text-align: center; white-space: nowrap;\" valign=\"top\">:<\/td>\n<td style=\"border: 0px; background-color: #ffffff; text-align: left; font-weight: bold;\" colspan=\"2\" valign=\"top\">Keiichi Nakayama,\u00a0M.D., Ph.D.<br \/>\nDepartment of Molecular and Cellular Biology<br \/>\nMedical Institute of Bioregulation, Kyushu University<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 0px; background-color: #ffffff; text-align: right; white-space: nowrap;\" valign=\"top\">Strain name<\/td>\n<td style=\"border: 0px; background-color: #ffffff; text-align: center; white-space: nowrap;\" valign=\"top\">:<\/td>\n<td style=\"border: 0px; background-color: #ffffff; text-align: left;\" colspan=\"2\" valign=\"top\"><b>B6;129P2-<i>Fbxw7&lt;tm1Kei&gt;<\/i><\/b><\/td>\n<\/tr>\n<tr>\n<td style=\"border: 0px; background-color: #ffffff; text-align: right; white-space: nowrap;\" valign=\"top\">RBRC No.<\/td>\n<td style=\"border: 0px; background-color: #ffffff; text-align: center; white-space: nowrap;\" valign=\"top\">:<\/td>\n<td style=\"border: 0px; background-color: #ffffff; text-align: left;\" colspan=\"2\" valign=\"top\">RBRC06393<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 0px; background-color: #ffffff; text-align: right; white-space: nowrap;\" valign=\"top\">Strain name<\/td>\n<td style=\"border: 0px; background-color: #ffffff; text-align: center; white-space: nowrap;\" valign=\"top\">:<\/td>\n<td style=\"border: 0px; background-color: #ffffff; text-align: left;\" colspan=\"2\" valign=\"top\"><b>B6;129P2-<i>Fbxw7&lt;tm1Kin&gt;<\/i><\/b><\/td>\n<\/tr>\n<tr>\n<td style=\"border: 0px; background-color: #ffffff; text-align: right; white-space: nowrap;\" valign=\"top\">RBRC No.<\/td>\n<td style=\"border: 0px; background-color: #ffffff; text-align: center; white-space: nowrap;\" valign=\"top\">:<\/td>\n<td style=\"border: 0px; background-color: #ffffff; text-align: left;\" colspan=\"2\" valign=\"top\">RBRC06394<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 0px; background-color: #ffffff; text-align: right; white-space: nowrap;\" valign=\"top\">Related strains<\/td>\n<td style=\"border: 0px; background-color: #ffffff; text-align: center; white-space: nowrap;\" valign=\"top\">:<\/td>\n<td style=\"border: 0px; background-color: #ffffff; text-align: left;\" colspan=\"2\" valign=\"top\"><b>B6;129P2-<i>Fbxw7&lt;tm2.1Kei&gt;<\/i><\/b><\/td>\n<\/tr>\n<tr>\n<td style=\"border: 0px; background-color: #ffffff; text-align: right; white-space: nowrap;\" valign=\"top\">RBRC No.<\/td>\n<td style=\"border: 0px; background-color: #ffffff; text-align: center; white-space: nowrap;\" valign=\"top\">:<\/td>\n<td style=\"border: 0px; background-color: #ffffff; text-align: left;\" colspan=\"2\" valign=\"top\">RBRC06395<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 0px; background-color: #ffffff; text-align: right; white-space: nowrap;\" rowspan=\"9\" valign=\"top\">References<\/td>\n<td style=\"border: 0px; background-color: #ffffff; text-align: center; white-space: nowrap;\" rowspan=\"9\" valign=\"top\">:<\/td>\n<td style=\"border: 0px; background-color: #ffffff; text-align: left;\" valign=\"top\">[1]<\/td>\n<td style=\"border: 0px; background-color: #ffffff; text-align: left;\" valign=\"top\">Tsunematsu R, Nakayama K, Oike Y, Nishiyama M, Ishida N, Hatakeyama S, Bessho Y, Kageyama R, Suda T, Nakayama KI. Mouse Fbw7\/Sel-10\/Cdc4 is required for notch degradation during vascular development.\u00a0<a href=\"http:\/\/www.ncbi.nlm.nih.gov\/pubmed\/14672936\" target=\"_blank\" rel=\"noopener noreferrer\"><em>J Biol Chem.<\/em>; 279(10):9417-23, 2004.<\/a><\/td>\n<\/tr>\n<tr>\n<td style=\"border: 0px; background-color: #ffffff; text-align: left;\" valign=\"top\">[2]<\/td>\n<td style=\"border: 0px; background-color: #ffffff; text-align: left;\" valign=\"top\">Onoyama I, Tsunematsu R, Matsumoto A, Kimura T, de Albor\u00e1n IM, Nakayama K, Nakayama KI. Conditional inactivation of Fbxw7 impairs cell-cycle exit during T cell differentiation and results in lymphomatogenesis.\u00a0<a href=\"http:\/\/www.ncbi.nlm.nih.gov\/pubmed\/17984302\" target=\"_blank\" rel=\"noopener noreferrer\"><em>J Exp Med.<\/em>; 204(12):2875-88, 2007.<\/a><\/td>\n<\/tr>\n<tr>\n<td style=\"border: 0px; background-color: #ffffff; text-align: left;\" valign=\"top\">[3]<\/td>\n<td style=\"border: 0px; background-color: #ffffff; text-align: left;\" valign=\"top\">Takeishi S, Matsumoto A, Onoyama I, Naka K, Hirao A, Nakayama KI. Ablation of Fbxw7 eliminates leukemia-initiating cells by preventing quiescence.\u00a0<a href=\"http:\/\/www.ncbi.nlm.nih.gov\/pubmed\/23518349\" target=\"_blank\" rel=\"noopener noreferrer\"><em>Cancer Cell<\/em>; 23(3):347-61, 2013.<\/a><\/td>\n<\/tr>\n<tr>\n<td style=\"border: 0px; background-color: #ffffff; text-align: left;\" valign=\"top\">[4]<\/td>\n<td style=\"border: 0px; background-color: #ffffff; text-align: left;\" valign=\"top\">Reavie L, Buckley SM, Loizou E, Takeishi S, Aranda-Orgilles B, Ndiaye-Lobry D, Abdel-Wahab O, Ibrahim S, Nakayama KI, Aifantis I. Regulation of c-Myc ubiquitination controls chronic myelogenous leukemia initiation and progression.\u00a0<a href=\"http:\/\/www.ncbi.nlm.nih.gov\/pubmed\/23518350\" target=\"_blank\" rel=\"noopener noreferrer\"><em>Cancer Cell<\/em>; 23(3):362-75, 2013. <\/a><\/td>\n<\/tr>\n<tr>\n<td style=\"border: 0px; background-color: #ffffff; text-align: left;\" valign=\"top\">[5]<\/td>\n<td style=\"border: 0px; background-color: #ffffff; text-align: left;\" valign=\"top\">Yumimoto K, Akiyoshi S, Ueo H, Sagara Y, Onoyama I, Ueo H, Ohno S, Mori M, Mimori K, Nakayama KI. F-box protein FBXW7 inhibits cancer metastasis in a non-cell-autonomous manner.\u00a0<a href=\"http:\/\/www.ncbi.nlm.nih.gov\/pubmed\/25555218\" target=\"_blank\" rel=\"noopener noreferrer\"><em>J Clin Invest.<\/em>; in press, 2015.\u00a0<\/a><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<table class=\"w7\" frame=\"hsides\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr>\n<td style=\"border: 0px; background-color: #ffffff; text-align: left;\">\u00a0January 2015<br \/>\nContact: <a href=\"mailto:animal.brc@riken.jp\">Shinya Ayabe, Ph.D.<\/a><br \/>\nExperimental Animal Division, RIKEN BioResource Center<br \/>\nAll materials contained on this site may not be reproduced, distributed, displayed, published or broadcast without the prior permission of the owner of that content.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<p align=\"left\">\n<map name=\"Map\">\n<area alt=\"RIKEN BRC\" coords=\"0,0,36,80\" shape=\"rect\" href=\"\/ja\/\" \/>\n<area alt=\"Mouse of the Month\" coords=\"188,0,510,80\" shape=\"rect\" href=\"\/ja\/mouse_of_month_list.shtml#2012\" \/> <\/map>\n<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Clarifying the role of Fbxw7 in cancer B6;129P2-Fbxw7&lt;tm1Kei&gt;\u00a0(RBRC06393, floxed mouse) B6;129P2-Fbxw7&lt;tm1Kin&gt;\u00a0(RBRC06394, knockout mouse) Courtesy of \u00a0Keiichi Nakayama, M.D., Ph.D. Gross  [&hellip;]<\/p>\n","protected":false},"author":19,"featured_media":0,"parent":198,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":"","_seopress_robots_follow":"","_seopress_robots_imageindex":"","_seopress_robots_snippet":"","_seopress_robots_primary_cat":"","_seopress_robots_breadcrumbs":"","_seopress_robots_freeze_modified_date":"","_seopress_robots_custom_modified_date":"","_seopress_robots_canonical":"","_seopress_social_fb_title":"","_seopress_social_fb_desc":"","_seopress_social_fb_img":"","_seopress_social_fb_img_attachment_id":0,"_seopress_social_fb_img_width":0,"_seopress_social_fb_img_height":0,"_seopress_social_twitter_title":"","_seopress_social_twitter_desc":"","_seopress_social_twitter_img":"","_seopress_social_twitter_img_attachment_id":0,"_seopress_social_twitter_img_width":0,"_seopress_social_twitter_img_height":0,"_seopress_redirections_value":"","_seopress_redirections_enabled":"","_seopress_redirections_enabled_regex":"","_seopress_redirections_logged_status":"","_seopress_redirections_param":"","_seopress_redirections_type":301,"_seopress_analysis_target_kw":"","footnotes":"","_wp_rev_ctl_limit":""},"class_list":["post-12262","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"http:\/\/mus.brc.riken.jp\/ja\/wp-json\/wp\/v2\/pages\/12262","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/mus.brc.riken.jp\/ja\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"http:\/\/mus.brc.riken.jp\/ja\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"http:\/\/mus.brc.riken.jp\/ja\/wp-json\/wp\/v2\/users\/19"}],"replies":[{"embeddable":true,"href":"http:\/\/mus.brc.riken.jp\/ja\/wp-json\/wp\/v2\/comments?post=12262"}],"version-history":[{"count":20,"href":"http:\/\/mus.brc.riken.jp\/ja\/wp-json\/wp\/v2\/pages\/12262\/revisions"}],"predecessor-version":[{"id":18586,"href":"http:\/\/mus.brc.riken.jp\/ja\/wp-json\/wp\/v2\/pages\/12262\/revisions\/18586"}],"up":[{"embeddable":true,"href":"http:\/\/mus.brc.riken.jp\/ja\/wp-json\/wp\/v2\/pages\/198"}],"wp:attachment":[{"href":"http:\/\/mus.brc.riken.jp\/ja\/wp-json\/wp\/v2\/media?parent=12262"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}