{"id":1824,"date":"2026-03-06T18:28:11","date_gmt":"2026-03-06T15:28:11","guid":{"rendered":"https:\/\/dbsnewsmedia.com\/?p=1824"},"modified":"2026-03-06T18:28:11","modified_gmt":"2026-03-06T15:28:11","slug":"tumoru-iceriden-yok-eden-bakteriler-kanser-tedavisinde-biyolojik-devrim","status":"publish","type":"post","link":"https:\/\/dbsnewsmedia.com\/?p=1824","title":{"rendered":"T\u00fcm\u00f6r\u00fc \u0130\u00e7eriden Yok Eden Bakteriler: Kanser Tedavisinde Biyolojik Devrim"},"content":{"rendered":"\n

Bilim insanlar\u0131, kanser tedavisinde \u00e7\u0131\u011f\u0131r a\u00e7abilecek bir y\u00f6ntemi hayata ge\u00e7irdi. Genetik olarak tasarlanan toprak bakterileri, t\u00fcm\u00f6rlerin oksijensiz b\u00f6lgelerine girerek kanserli dokuyu i\u00e7eriden par\u00e7alayarak yok ediyor.<\/strong><\/p>\n\n\n\n

Onkoloji d\u00fcnyas\u0131, kanserli h\u00fccreleri<\/strong> do\u011frudan hedef alan “ak\u0131ll\u0131” bir biyolojik silah\u0131n heyecan\u0131n\u0131 ya\u015f\u0131yor. Geleneksel kemoterapi ve radyoterapi y\u00f6ntemlerinin aksine, do\u011frudan t\u00fcm\u00f6r\u00fcn kalbine s\u0131zan bu yeni y\u00f6ntem, kat\u0131 t\u00fcm\u00f6rlerin en b\u00fcy\u00fck zay\u0131f noktas\u0131n\u0131 hedef al\u0131yor. Ara\u015ft\u0131rmac\u0131lar, toprakta do\u011fal olarak bulunan Clostridium sporogenes<\/strong> bakterisini genetik m\u00fchendisli\u011fi ile yeniden kodlayarak, kanserli kitleleri tamamen yok edebilecek bir “yiyici<\/strong>” organizmaya d\u00f6n\u00fc\u015ft\u00fcrd\u00fc.<\/p>\n\n\n\n

Kanser H\u00fccrelerinin \u0130\u00e7inde Oksijensiz B\u00f6lge: Bakterilerin Hedefi<\/h3>\n\n\n\n

Bir\u00e7ok kat\u0131 t\u00fcm\u00f6r t\u00fcr\u00fc, h\u0131zla b\u00fcy\u00fcrken kendi kan deste\u011fini a\u015far ve merkezinde oksijensiz bir b\u00f6lge olu\u015fur. Bilim insanlar\u0131, sadece oksijensiz ortamlarda hayatta kalabilen Clostridium sporogenes<\/strong> bakterisinin bu alan\u0131 ideal bir \u00fcreme merkezi olarak kulland\u0131\u011f\u0131n\u0131 saptad\u0131. T\u00fcm\u00f6r\u00fcn i\u00e7ine s\u0131zan bakteriler, burada h\u0131zla \u00e7o\u011falarak kanserli dokuyu par\u00e7alamaya ba\u015fl\u0131yor. Ancak ge\u00e7mi\u015f \u00e7al\u0131\u015fmalarda bu bakterilerin t\u00fcm\u00f6r\u00fcn oksijenli d\u0131\u015f \u00e7eperine ula\u015ft\u0131\u011f\u0131nda \u00f6lmesi, tedavinin yar\u0131m kalmas\u0131na neden oluyordu. Waterloo \u00dcniversitesi <\/strong>ekibi, bu sorunu genetik bir m\u00fcdahaleyle a\u015fmay\u0131 ba\u015fard\u0131.<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

Kanser Tedavisinde Oksijen Bariyerini Y\u0131kan Genetik Yakla\u015f\u0131m<\/h3>\n\n\n\n

Kimya M\u00fchendisi Profes\u00f6r Marc Aucoin liderli\u011findeki ekip, bakteriye oksijene kar\u015f\u0131 diren\u00e7 sa\u011flayan \u00f6zel bir gen ekledi. Bu genetik modifikasyon sayesinde bakteriler, t\u00fcm\u00f6r\u00fcn sadece merkezinde hapsolmayacak, oksijen seviyesinin y\u00fckseldi\u011fi d\u0131\u015f b\u00f6lgelerde de hayatta kalarak t\u00fcm\u00f6r\u00fc tamamen temizleyebilecek. Ancak bu durum, bakterilerin kan dola\u015f\u0131m\u0131 gibi oksijenin bol oldu\u011fu sa\u011fl\u0131kl\u0131 b\u00f6lgelerde de \u00e7o\u011falabilece\u011fi riskini do\u011furdu. Ara\u015ft\u0131rmac\u0131lar, bu tehlikeyi \u00f6nlemek i\u00e7in bakterilere bir “karar verme” mekanizmas\u0131 y\u00fckledi.<\/p>\n\n\n\n

Kanser Tedavisinde Kontroll\u00fc Yakla\u015f\u0131m: Kitle Alg\u0131lama Sistemi<\/h3>\n\n\n\n

Bakterilerin v\u00fccudun sa\u011fl\u0131kl\u0131 b\u00f6lgelerine zarar vermesini engellemek amac\u0131yla “kitle alg\u0131lama” (quorum sensing) ad\u0131 verilen bir ileti\u015fim sisteminden yararlan\u0131ld\u0131. Bu sistem sayesinde, oksijene dayan\u0131kl\u0131l\u0131k geni ancak bakteri pop\u00fclasyonu t\u00fcm\u00f6r i\u00e7inde belirli bir yo\u011funlu\u011fa ula\u015ft\u0131\u011f\u0131nda aktif hale geliyor. B\u00f6ylece bakteriler, kan dola\u015f\u0131m\u0131 gibi d\u00fc\u015f\u00fck yo\u011funlukta bulunduklar\u0131 sa\u011fl\u0131kl\u0131 alanlarda pasif kal\u0131rken, t\u00fcm\u00f6r\u00fcn i\u00e7inde say\u0131lar\u0131 artt\u0131\u011f\u0131nda “sava\u015f\u00e7\u0131” moduna ge\u00e7iyor.<\/p>\n\n\n\n

Yap\u0131lan testlerde, genetik olarak modifiye edilen bakterilerin sadece hedeflenen yo\u011funlu\u011fa ula\u015ft\u0131\u011f\u0131nda aktifle\u015fti\u011fi floresan proteinler arac\u0131l\u0131\u011f\u0131yla kan\u0131tland\u0131. Bilim heyeti, bir sonraki a\u015famada bu sistemi pre-klinik t\u00fcm\u00f6r modellerinde test etmeye haz\u0131rlan\u0131yor.<\/p>\n\n\n\n

<\/p>\n\n\n\n

06.03.2026 18:28<\/p>\n\n\n\n

Kaynak:https:\/\/www.cumhuriyet.com.tr\/yasam\/kanser-tedavisinde-biyolojik-devrim-tumoru-iceriden-yok-eden-akilli-bakteriler-gelistirildi-2484503<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

Bilim insanlar\u0131, kanser tedavisinde \u00e7\u0131\u011f\u0131r a\u00e7abilecek bir y\u00f6ntemi hayata ge\u00e7irdi. Genetik olarak tasarlanan toprak bakterileri, t\u00fcm\u00f6rlerin oksijensiz b\u00f6lgelerine girerek kanserli dokuyu i\u00e7eriden par\u00e7alayarak yok ediyor. Onkoloji d\u00fcnyas\u0131, kanserli h\u00fccreleri do\u011frudan hedef alan “ak\u0131ll\u0131” bir biyolojik silah\u0131n heyecan\u0131n\u0131 ya\u015f\u0131yor. Geleneksel kemoterapi ve radyoterapi y\u00f6ntemlerinin aksine, do\u011frudan t\u00fcm\u00f6r\u00fcn kalbine s\u0131zan bu yeni y\u00f6ntem, kat\u0131 t\u00fcm\u00f6rlerin en b\u00fcy\u00fck zay\u0131f noktas\u0131n\u0131…<\/p>\n","protected":false},"author":4,"featured_media":1826,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[2],"tags":[691,256,690],"class_list":["post-1824","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-yasam","tag-bakteri","tag-kanser","tag-tumor"],"jetpack_featured_media_url":"https:\/\/dbsnewsmedia.com\/wp-content\/uploads\/2026\/03\/903b85e0-8bec-49ed-96a6-403adc9d180e.jpg","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/dbsnewsmedia.com\/index.php?rest_route=\/wp\/v2\/posts\/1824","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/dbsnewsmedia.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/dbsnewsmedia.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/dbsnewsmedia.com\/index.php?rest_route=\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/dbsnewsmedia.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1824"}],"version-history":[{"count":1,"href":"https:\/\/dbsnewsmedia.com\/index.php?rest_route=\/wp\/v2\/posts\/1824\/revisions"}],"predecessor-version":[{"id":1827,"href":"https:\/\/dbsnewsmedia.com\/index.php?rest_route=\/wp\/v2\/posts\/1824\/revisions\/1827"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/dbsnewsmedia.com\/index.php?rest_route=\/wp\/v2\/media\/1826"}],"wp:attachment":[{"href":"https:\/\/dbsnewsmedia.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1824"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dbsnewsmedia.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1824"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dbsnewsmedia.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1824"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}