Son y\u0131llarda kanser metabolizmas\u0131 alan\u0131nda yap\u0131lan ara\u015ft\u0131rmalar, hastal\u0131klar\u0131n geli\u015fimini sadece genetik ve molek\u00fcler d\u00fczeyde de\u011fil, ayn\u0131 zamanda metabolik s\u00fcre\u00e7ler a\u00e7\u0131s\u0131ndan da incelemeye ba\u015flad\u0131. Rochester \u00dcniversitesi Wilmot Kanser Enstit\u00fcs\u00fc\u2019nden bilim insanlar\u0131n\u0131n Nature dergisinde yay\u0131mlad\u0131\u011f\u0131 son \u00e7al\u0131\u015fmada, miyeloid l\u00f6semilerde yeni bir metabolik zafiyet ke\u015ffedildi. Bu zafiyet, taurin amino asidinin l\u00f6semi h\u00fccrelerindeki kritik rol\u00fcne dikkat \u00e7ekiyor. Ta\u00fcrin, uzun s\u00fcredir insan fizyolojisinde \u00f6nemsiz veya tamamlay\u0131c\u0131 bir bile\u015fen olarak kabul edilirken, yeni bulgular l\u00f6semi h\u00fccrelerinin bu amino asidi \u00e7evresel ortamdan alarak agresif \u00e7o\u011falmalar\u0131n\u0131 destekledi\u011fini ortaya koydu.<\/p>\n
Taurin, s\u00fclf\u00fcr i\u00e7eren ve genellikle karaci\u011ferde sentezlenen, et, bal\u0131k ve yumurta gibi besin kaynaklar\u0131ndan al\u0131nan bir amino asittir. Enerji i\u00e7ecekleri ve besin takviyelerinde yayg\u0131n \u015fekilde kullan\u0131lan taurin, fiziksel ve bili\u015fsel performans art\u0131r\u0131c\u0131 etkileri ile tan\u0131n\u0131r. Ancak Wilmot ara\u015ft\u0131rma ekibinin bulgular\u0131, taurin metabolizmas\u0131n\u0131n yaln\u0131zca faydal\u0131 bir bile\u015fen olmad\u0131\u011f\u0131n\u0131; ayn\u0131 zamanda kemik ili\u011fi mikro ortam\u0131nda l\u00f6semik h\u00fccrelerin b\u00fcy\u00fcmesi i\u00e7in kritik bir metabolik d\u00fczenleyici i\u015flevi g\u00f6rd\u00fc\u011f\u00fcn\u00fc g\u00f6steriyor. L\u00f6semi h\u00fccrelerinin kendi ba\u015flar\u0131na taurin \u00fcretimi yapamad\u0131klar\u0131 ve taurin kayna\u011f\u0131n\u0131 \u00e7evresel stromal h\u00fccrelerden ald\u0131klar\u0131 kesinlik kazanm\u0131\u015ft\u0131r.<\/p>\n
Ara\u015ft\u0131rman\u0131n ba\u015f\u0131ndaki isim Dr. Jeevisha Bajaj ve ekibi, kemik ili\u011fi stromal h\u00fccrelerinin taurin \u00fcretti\u011fini, ancak kanserli hematopoetik h\u00fccrelerin bu amino asidi sentezleyemedi\u011fini ortaya koydu. L\u00f6semi h\u00fccreleri, taurin al\u0131m\u0131n\u0131 SLC6A6 geninin kodlad\u0131\u011f\u0131 \u00f6zel bir ta\u015f\u0131y\u0131c\u0131 protein sayesinde ger\u00e7ekle\u015ftiriyor. Bu protein, taurin molek\u00fcllerini h\u00fccre i\u00e7ine aktaran bir kap\u0131 g\u00f6revi g\u00f6r\u00fcyor ve h\u00fccrelerin glikolitik metabolizmas\u0131n\u0131 h\u0131zland\u0131rarak enerji \u00fcretimini art\u0131r\u0131yor. H\u00fccrelerin enerji ihtiyac\u0131n\u0131n kar\u015f\u0131lanmas\u0131 ise t\u00fcm\u00f6r b\u00fcy\u00fcmesinde belirleyici bir fakt\u00f6r oluyor.<\/p>\n
Bilim insanlar\u0131, deneylerinde bu ta\u015f\u0131y\u0131c\u0131n\u0131n i\u015flevini genetik d\u00fczenlemelerle engelledi. Hem fare modellerinde hem de insan l\u00f6semi h\u00fccrelerinde yap\u0131lan testler, taurin al\u0131m\u0131n\u0131n engellenmesinin l\u00f6semik h\u00fccre proliferasyonunu b\u00fcy\u00fck oranda azaltt\u0131\u011f\u0131n\u0131 g\u00f6sterdi. B\u00f6ylece SLC6A6 ta\u015f\u0131y\u0131c\u0131s\u0131n\u0131n hedeflenebilir, yeni bir ila\u00e7 geli\u015ftirme alan\u0131 oldu\u011fu do\u011fruland\u0131. Ara\u015ft\u0131rma ayr\u0131nt\u0131lar\u0131, taurin metabolizmas\u0131n\u0131n glikolizde rol alan anahtar enzimlerin ekspresyonunu art\u0131rarak h\u00fccrelerin enerji dengesini yeniden programlad\u0131\u011f\u0131n\u0131 ortaya koydu.<\/p>\n
Ta\u00fcrinin, l\u00f6semi h\u00fccreleri ve kemik ili\u011fi mikro ortam\u0131 aras\u0131ndaki karma\u015f\u0131k etkile\u015fimde merkezi bir rol oynamas\u0131, bu mikro \u00e7evrenin t\u00fcm\u00f6r geli\u015fiminde pasif olmay\u0131p aktif bir kat\u0131l\u0131mc\u0131 olarak de\u011ferlendirilmesini sa\u011flad\u0131. Bu \u00e7al\u0131\u015fma, mikroskobik seviyede l\u00f6semi ile \u00e7evresel h\u00fccreler aras\u0131ndaki metabolik al\u0131\u015fveri\u015fi detayland\u0131ran ilk ara\u015ft\u0131rmalardan biri olarak kabul ediliyor. B\u00f6ylece kanser mikro ortam\u0131na y\u00f6nelik terapi stratejileri yeniden \u015fekillenebilir.<\/p>\n
Klinik a\u00e7\u0131dan bak\u0131ld\u0131\u011f\u0131nda, \u00e7al\u0131\u015fman\u0131n \u00f6nemli bir uyar\u0131s\u0131 da taurin takviyelerinin l\u00f6semi hastalar\u0131ndaki potansiyel risklerine i\u015faret ediyor. Ta\u00fcrinin enerji i\u00e7ecekleri ve besin desteklerinde yayg\u0131n kullan\u0131m\u0131, \u00f6zellikle kanser hastalar\u0131nda kemoterapi etkilerini azaltmak i\u00e7in tercih ediliyor. Ancak ara\u015ft\u0131rma, y\u00fcksek lokal taurin d\u00fczeylerinin hastal\u0131\u011f\u0131n ilerlemesini h\u0131zland\u0131rabilece\u011fi endi\u015fesi do\u011furuyor ve b\u00f6ylesi takviyelerin kullan\u0131m\u0131 konusunda dikkatli olunmas\u0131 gerekti\u011fini vurguluyor.<\/p>\n
Miyeloid l\u00f6semilerin metabolik heterojen yap\u0131s\u0131 iyi bilinmektedir; akut miyeloid l\u00f6semi (AML), kronik miyeloid l\u00f6semi (CML) ve miyelodisplastik sendromlar (MDS) gibi alt tipleri bulunmaktad\u0131r. Wilmot ekibi, SLC6A6 ta\u015f\u0131y\u0131c\u0131s\u0131n\u0131n bu alt tiplerin tamam\u0131nda y\u00fcksek oranda ifade edildi\u011fini ve taurin al\u0131m\u0131n\u0131n evrensel bir gereklilik oldu\u011funu g\u00f6stermi\u015ftir. Bu da metabolik hedeflemelerin geni\u015f \u00e7apl\u0131 miyeloid neoplazmlara uygulanabilir oldu\u011funu i\u015faret etmektedir.<\/p>\n
Genetik mutasyonlar\u0131n l\u00f6semide her zaman kilit oldu\u011fu d\u00fc\u015f\u00fcn\u00fcl\u00fcrken, taurin-glykoliz ekseni gibi metabolik s\u00fcre\u00e7lerin de \u00f6nemli bir tamamlay\u0131c\u0131 rol oynad\u0131\u011f\u0131 anla\u015f\u0131ld\u0131. Bu yeni anlay\u0131\u015f, genetik hedeflenen tedavilerle birlikte metabolik yolla diren\u00e7 a\u015f\u0131lmas\u0131na ve tedavi ba\u015far\u0131s\u0131n\u0131n art\u0131r\u0131lmas\u0131na imkan sa\u011flayabilir. Dolay\u0131s\u0131yla taurin metabolizmas\u0131 \u00fczerine geli\u015ftirilecek ila\u00e7lar\u0131n, klasik tedavilerin etkinli\u011fini art\u0131rmas\u0131 bekleniyor.<\/p>\n
Dikkat \u00e7ekici olan bir di\u011fer nokta ise taurin rol\u00fcn\u00fcn dokuya \u00f6zg\u00fc olmas\u0131d\u0131r. Ge\u00e7mi\u015fte yay\u0131nlanan bir Cell \u00e7al\u0131\u015fmas\u0131, taurin takviyesinin mide kanserinde imm\u00fcn sistemi g\u00fc\u00e7lendirebilece\u011fini ileri s\u00fcrm\u00fc\u015f, yani olumlu etkileri olabilece\u011fini belirtmi\u015ftir. Bu da taurin metabolizmas\u0131n\u0131n kanser t\u00fcrlerine g\u00f6re farkl\u0131 i\u015flevler g\u00f6rebilece\u011fini, hastal\u0131\u011fa \u00f6zg\u00fc detayl\u0131 \u00e7al\u0131\u015fmalar yap\u0131lmas\u0131 gerekti\u011fini g\u00f6stermektedir.<\/p>\n
Bu \u00e7ok disiplinli \u00e7al\u0131\u015fma molek\u00fcler biyoloji, genetik, biyoinformatik ve preklinik modelleri bir araya getirecek \u015fekilde tasarlanm\u0131\u015f, Wilmot Kanser Enstit\u00fcs\u00fc ve Rochester Genomik Ara\u015ft\u0131rma Merkezi\u2019nin i\u015f birli\u011fi ile ger\u00e7ekle\u015ftirilmi\u015ftir. Ara\u015ft\u0131rma, kanser mikro \u00e7evresi ve metabolizma alanlar\u0131nda uzman bilim insanlar\u0131n\u0131n katk\u0131lar\u0131yla metabolismal yollar\u0131n ayr\u0131nt\u0131l\u0131 incelenmesini sa\u011flam\u0131\u015f ve taurin i\u015fleyi\u015finin fonksiyonel \u00e7\u00f6z\u00fcmlenmesine olanak vermi\u015ftir.<\/p>\n
Uygulama odakl\u0131 alanda ise, ara\u015ft\u0131rmac\u0131lar taurin ta\u015f\u0131y\u0131c\u0131s\u0131n\u0131 veya metabolik yolaklar\u0131n\u0131 hedef alan farmakolojik inhibitorlerin geli\u015ftirilmesini \u00f6nermektedir. Geli\u015ftirilecek ila\u00e7lar\u0131n, normal hematopoetik h\u00fccrelerin fonksiyonlar\u0131n\u0131 bozmadan yaln\u0131zca l\u00f6semi h\u00fccrelerinin enerji kaynaklar\u0131n\u0131 kesmeyi ama\u00e7lamas\u0131 hedeflenmektedir. Ayr\u0131ca hastalarda taurin seviyelerinin izlenmesi, hastal\u0131\u011f\u0131n ilerlemesini veya tedavi yan\u0131t\u0131n\u0131 takip etmek i\u00e7in potansiyel bir biyobelirte\u00e7 olarak de\u011ferlendirilmekte, b\u00f6ylece klinik y\u00f6netimde yeni imkanlar sa\u011flamaktad\u0131r.<\/p>\n
Sonu\u00e7 olarak, kanser metabolizmas\u0131n\u0131n alt\u0131nda yatan karma\u015f\u0131k mekanizmalar\u0131n daha iyi anla\u015f\u0131lmas\u0131 ad\u0131na b\u00fcy\u00fck bir ad\u0131m at\u0131lm\u0131\u015ft\u0131r. Ta\u00fcrinin benzeri g\u00f6r\u00fclmemi\u015f bir \u015fekilde l\u00f6semi geli\u015fimindeki kataliz\u00f6r rol\u00fc, hematolojik malignitelerde t\u00fcm\u00f6r mikro ortam\u0131n\u0131n \u00f6nemi ve metabolik ba\u011f\u0131ml\u0131l\u0131klar\u0131 konusundaki anlay\u0131\u015f\u0131 derinle\u015ftirmi\u015ftir. Wilmot Kanser Enstit\u00fcs\u00fc\u2019n\u00fcn bu \u00f6nc\u00fc \u00e7al\u0131\u015fmas\u0131, miyeloid l\u00f6semilerin tedavisinde yeni stratejiler i\u00e7in umut \u0131\u015f\u0131\u011f\u0131 olmaktad\u0131r.<\/p>\n
Bu \u00e7al\u0131\u015fma, taurin amino asidinin l\u00f6semi h\u00fccrelerinde glikoliz metabolizmas\u0131n\u0131 te\u015fvik ederek kanser ilerlemesini h\u0131zland\u0131rd\u0131\u011f\u0131n\u0131 g\u00f6stermi\u015ftir. Ta\u00fcrin, yaln\u0131zca beslenmeden al\u0131nan veya takviyelerde bulunan zarars\u0131z bir molek\u00fcl olmaktan \u00e7\u0131k\u0131p, miyeloid kanserlerde hedeflenebilir bir metabolik etken olarak ortaya \u00e7\u0131km\u0131\u015ft\u0131r. Hem tedavi hem de hasta bak\u0131m\u0131na y\u00f6nelik paradigmalarda b\u00fcy\u00fck de\u011fi\u015fimlere yol a\u00e7mas\u0131 beklenen bu bulgular, ileri klinik \u00e7al\u0131\u015fmalar ve ila\u00e7 geli\u015ftirme projeleri i\u00e7in sa\u011flam bir temel olu\u015fturmaktad\u0131r.<\/p>\n
—<\/p>\n
**Ara\u015ft\u0131rma Konusu**: Animals
\n**Makale Ba\u015fl\u0131\u011f\u0131**: Taurine from tumour niche drives glycolysis to promote leukaemogenesis
\n**Haberin Yay\u0131n Tarihi**: 14-May-2025
\n**Web References**:
\nhttps:\/\/www.nature.com\/articles\/s41586-025-09018-7
\nhttps:\/\/www.urmc.rochester.edu\/cancer-institute
\nhttps:\/\/en.wikipedia.org\/wiki\/Taurine
\n**Doi Referans**: 10.1038\/s41586-025-09018-7
\n**Resim Credits**: Wilmot Cancer Institute, University of Rochester Medical Center <\/p>\n
**Anahtar Kelimeler**: Taurine, leukemia, glycolysis, tumor microenvironment, myeloid cancers, metabolic reprogramming, SLC6A6 transporter, acute myeloid leukemia, chronic myeloid leukemia, myelodysplastic syndromes, cancer metabolism, bone marrow niche<\/p>\n","protected":false},"excerpt":{"rendered":"
Son y\u0131llarda kanser metabolizmas\u0131 alan\u0131nda yap\u0131lan ara\u015ft\u0131rmalar, hastal\u0131klar\u0131n geli\u015fimini sadece genetik ve molek\u00fcler d\u00fczeyde de\u011fil, ayn\u0131 zamanda metabolik s\u00fcre\u00e7ler a\u00e7\u0131s\u0131ndan da incelemeye ba\u015flad\u0131. Rochester \u00dcniversitesi Wilmot Kanser Enstit\u00fcs\u00fc\u2019nden bilim insanlar\u0131n\u0131n Nature dergisinde yay\u0131mlad\u0131\u011f\u0131 son \u00e7al\u0131\u015fmada, miyeloid l\u00f6semilerde yeni bir metabolik zafiyet ke\u015ffedildi. Bu zafiyet, taurin amino asidinin l\u00f6semi h\u00fccrelerindeki kritik rol\u00fcne dikkat \u00e7ekiyor. Ta\u00fcrin, uzun…<\/p>\n","protected":false},"author":1,"featured_media":5919,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_title":"","_yoast_wpseo_metadesc":"","_yoast_wpseo_focuskw":"","rank_math_title":"","rank_math_description":"","rank_math_focus_keyword":"","_wpan_schema_json_ld":"","_wpan_ai_seo_metadata":"","_wpan_ai_seo_status":"","_wpan_ai_seo_policy":"","_wpan_ai_seo_faq_block":"","_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[28],"tags":[8112,8113,8111,8114,8110],"tmauthors":[],"class_list":{"0":"post-5918","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-kanser","8":"tag-kemik-iligi-mikro-ortami-ve-taurin-iliskisi","9":"tag-miyeloid-losemi-metabolik-hedefler","10":"tag-slc6a6-tasiyici-proteini-losemi","11":"tag-taurin-metabolizmasinin-kanser-tedavisindeki-rolu","12":"tag-taurin-ve-losemi-hucre-proliferasyonu"},"jetpack_featured_media_url":"https:\/\/haber360.com\/wp-content\/uploads\/2025\/05\/Taurinin-Losemi-Ilerlemesindeki-Potansiyel-Riski-1747238419.jpg","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/haber360.com\/index.php\/wp-json\/wp\/v2\/posts\/5918","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/haber360.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/haber360.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/haber360.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/haber360.com\/index.php\/wp-json\/wp\/v2\/comments?post=5918"}],"version-history":[{"count":0,"href":"https:\/\/haber360.com\/index.php\/wp-json\/wp\/v2\/posts\/5918\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/haber360.com\/index.php\/wp-json\/wp\/v2\/media\/5919"}],"wp:attachment":[{"href":"https:\/\/haber360.com\/index.php\/wp-json\/wp\/v2\/media?parent=5918"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/haber360.com\/index.php\/wp-json\/wp\/v2\/categories?post=5918"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/haber360.com\/index.php\/wp-json\/wp\/v2\/tags?post=5918"},{"taxonomy":"tmauthors","embeddable":true,"href":"https:\/\/haber360.com\/index.php\/wp-json\/wp\/v2\/tmauthors?post=5918"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}