{"id":17,"date":"2026-06-16T10:49:14","date_gmt":"2026-06-16T08:49:14","guid":{"rendered":"https:\/\/crseh.com\/tr\/2026\/06\/16\/kandaki-hucresel-yaslanma-hastalik-risklerini-ortaya-cikariyor\/"},"modified":"2026-06-16T10:50:58","modified_gmt":"2026-06-16T08:50:58","slug":"kandaki-hucresel-yaslanma-hastalik-risklerini-ortaya-cikariyor","status":"publish","type":"post","link":"https:\/\/crseh.com\/tr\/2026\/06\/16\/kandaki-hucresel-yaslanma-hastalik-risklerini-ortaya-cikariyor\/","title":{"rendered":"Kandaki h\u00fccresel ya\u015flanma hastal\u0131k risklerini ortaya \u00e7\u0131kar\u0131yor"},"content":{"rendered":"

\"Kandaki<\/p>\n

Kandaki h\u00fccresel ya\u015flanma hastal\u0131k risklerini ortaya \u00e7\u0131kar\u0131yor<\/h1>\n

60.000 ki\u015fide 7.000\u2019den fazla plazma proteini \u00fczerinde yap\u0131lan derinlemesine bir analiz, n\u00f6ronlardan kas h\u00fccrelerine ve ba\u011f\u0131\u015f\u0131kl\u0131k h\u00fccrelerine kadar 40\u2019tan fazla h\u00fccre tipinin biyolojik ya\u015f\u0131n\u0131 tahmin edebilen modeller geli\u015ftirilmesini sa\u011flad\u0131. Sonu\u00e7lar, ya\u015flanman\u0131n t\u00fcm h\u00fccreleri ayn\u0131 \u015fekilde etkilemedi\u011fini g\u00f6steriyor: bireylerin %20 ila %25\u2019i tek bir h\u00fccre tipinde h\u0131zland\u0131r\u0131lm\u0131\u015f ya\u015flanma g\u00f6sterirken, %1 ila %3\u2019\u00fcnde en az on h\u00fccre tipi etkileniyor.<\/p>\n

Bu h\u00fccresel ya\u015flanma imzalar\u0131, 15 y\u0131ll\u0131k bir s\u00fcre boyunca hastal\u0131klar\u0131n ortaya \u00e7\u0131kmas\u0131 ve \u00f6l\u00fcmc\u00fcl sonu\u00e7larla yak\u0131ndan ili\u015fkilidir. \u00d6rne\u011fin, Alzheimer hastal\u0131\u011f\u0131 riskini art\u0131rd\u0131\u011f\u0131 bilinen APOE4 geni ta\u015f\u0131yan ki\u015filerde, astrosit ad\u0131 verilen bir beyin h\u00fccresi tipi h\u0131zl\u0131 bir \u015fekilde ya\u015flan\u0131rken, makrofaj ad\u0131 verilen ba\u011f\u0131\u015f\u0131kl\u0131k h\u00fccrelerinde g\u00f6rece gen\u00e7le\u015fme g\u00f6zleniyor. Buna kar\u015f\u0131n, APOE2 geni ta\u015f\u0131y\u0131c\u0131lar\u0131, astrositlerin daha gen\u00e7 ve makrofajlar\u0131n daha ya\u015fl\u0131 oldu\u011fu ters bir profil sergiliyor. Bu farkl\u0131l\u0131klar, APOE4 geninin, ge\u00e7mi\u015fte patojenlere kar\u015f\u0131 hayatta kalma avantaj\u0131 sa\u011flayan ba\u011f\u0131\u015f\u0131kl\u0131k uyan\u0131kl\u0131\u011f\u0131n\u0131 g\u00fc\u00e7lendirerek, beynin h\u0131zl\u0131 ya\u015flanmas\u0131 pahas\u0131na evrimsel mekanizmalarla a\u00e7\u0131klanabilir.<\/p>\n

Astrositlerin a\u015f\u0131r\u0131 ya\u015flanmas\u0131, APOE4 geninin iki kopyas\u0131na sahip ki\u015filerde Alzheimer hastal\u0131\u011f\u0131 geli\u015ftirme riskini \u00fc\u00e7 kat art\u0131r\u0131rken, ayn\u0131 h\u00fccrelerin gen\u00e7le\u015fmesi bu riski \u00f6nemli \u00f6l\u00e7\u00fcde azalt\u0131yor. Benzer \u015fekilde, iskelet kas h\u00fccrelerinin belirgin \u015fekilde ya\u015flanmas\u0131, amyotrofik lateral skleroz (ALS) ad\u0131 verilen ciddi bir n\u00f6rodejeneratif hastal\u0131\u011f\u0131n riskini 12,7 kat art\u0131r\u0131yor. Sigara i\u00e7enlerde, solunum epitel h\u00fccrelerinin h\u0131zland\u0131r\u0131lm\u0131\u015f ya\u015flanmas\u0131, sadece sigara i\u00e7menin neden oldu\u011fu akci\u011fer kanseri riskini %58 oran\u0131nda art\u0131r\u0131yor.<\/p>\n

H\u00fccresel ya\u015flanma imzalar\u0131, di\u011fer hastal\u0131klar\u0131n tahmin edilmesine de olanak tan\u0131yor. Akci\u011fer onar\u0131m\u0131nda kilit rol oynayan tip 2 alveol h\u00fccrelerinin a\u015f\u0131r\u0131 ya\u015flanmas\u0131, sigara i\u00e7meyenler bile olsa akci\u011fer kanseri riski ile ili\u015fkilendiriliyor. Tip 2 diyabet i\u00e7in, iltihaplanmada rol oynayan miyeloid soy h\u00fccrelerinin belirgin \u015fekilde ya\u015flanmas\u0131, kan \u015fekeri seviyesinin y\u00fcksek olmas\u0131 gibi geleneksel fakt\u00f6rler olmasa bile riski \u00f6nemli \u00f6l\u00e7\u00fcde art\u0131r\u0131yor.<\/p>\n

\u00c7al\u0131\u015fma, ya\u015fam tarz\u0131n\u0131n h\u00fccresel ya\u015flanmay\u0131 do\u011frudan etkiledi\u011fini de ortaya koyuyor. Sigara i\u00e7meme, alkol t\u00fcketiminin \u0131l\u0131ml\u0131 olmas\u0131, normal v\u00fccut kitle indeksi, d\u00fczenli fiziksel aktivite ve yeterli uyku ile karakterize edilen sa\u011fl\u0131kl\u0131 bir ya\u015fam tarz\u0131 benimseyen bireylerin h\u00fccreleri genel olarak daha gen\u00e7 g\u00f6r\u00fcn\u00fcyor. Buna kar\u015f\u0131n, sigara i\u00e7me ve obeziteyi bir araya getirenler, bir\u00e7ok h\u00fccre tipinde h\u0131zland\u0131r\u0131lm\u0131\u015f ya\u015flanma g\u00f6steriyor.<\/p>\n

H\u00fccresel ya\u015flanman\u0131n birikimli y\u00fck\u00fc, hayatta kalma \u00fczerinde b\u00fcy\u00fck bir etkiye sahip. 20\u2019den fazla h\u00fccre tipinde h\u0131zland\u0131r\u0131lm\u0131\u015f ya\u015flanma g\u00f6steren ki\u015filerin 15 y\u0131ll\u0131k sa\u011fkal\u0131m oran\u0131 yakla\u015f\u0131k %34 iken, h\u00fccreleri normal \u015fekilde ya\u015flananlarda bu oran %90\u2019d\u0131r. Tersine, gen\u00e7le\u015fmi\u015f ba\u011f\u0131\u015f\u0131kl\u0131k veya n\u00f6ron h\u00fccreleri, \u00f6mr\u00fc uzat\u0131yor. \u00c7ok h\u00fccreli bir risk skoru geli\u015ftirilerek \u00f6l\u00fcmc\u00fcl riskin stratifikasyonu sa\u011flanm\u0131\u015f ve bu skor, farkl\u0131 proteomik analiz platformlar\u0131 \u00fczerinde g\u00fc\u00e7l\u00fc tahmin yetene\u011fi sergilemi\u015ftir.<\/p>\n

Bu ke\u015fifler, h\u00fccresel d\u00fczeyde insan ya\u015flanmas\u0131n\u0131 anlamak i\u00e7in yeni bir yol sunuyor. Hastal\u0131k risklerinin de\u011ferlendirilmesi ve en savunmas\u0131z h\u00fccre tiplerini hedef alarak potansiyel terap\u00f6tik hedeflerin belirlenmesi i\u00e7in ki\u015fiselle\u015ftirilmi\u015f yakla\u015f\u0131mlar\u0131n \u00f6n\u00fcn\u00fc a\u00e7\u0131yor. Ya\u015flanma art\u0131k tek tip bir s\u00fcre\u00e7 olarak de\u011fil, her biri sa\u011fl\u0131k ve hastal\u0131k \u00fczerinde farkl\u0131 etkiler yaratabilen farkl\u0131 h\u00fccresel yollar\u0131n bir mozaik olarak g\u00f6r\u00fcl\u00fcyor.<\/p>\n

Kandaki h\u00fccresel ya\u015flanma hastal\u0131k risklerini ortaya \u00e7\u0131kar\u0131yor<\/h1>\n

60.000 ki\u015fide 7.000\u2019den fazla plazma proteini \u00fczerinde yap\u0131lan derinlemesine bir analiz, n\u00f6ronlardan kas h\u00fccrelerine ve ba\u011f\u0131\u015f\u0131kl\u0131k h\u00fccrelerine kadar 40\u2019tan fazla h\u00fccre tipinin biyolojik ya\u015f\u0131n\u0131 tahmin edebilen modeller geli\u015ftirilmesini sa\u011flad\u0131. Sonu\u00e7lar, ya\u015flanman\u0131n t\u00fcm h\u00fccreleri ayn\u0131 \u015fekilde etkilemedi\u011fini g\u00f6steriyor: bireylerin %20 ila %25\u2019i tek bir h\u00fccre tipinde h\u0131zland\u0131r\u0131lm\u0131\u015f ya\u015flanma g\u00f6sterirken, %1 ila %3\u2019\u00fcnde en az on h\u00fccre tipi etkileniyor.<\/p>\n

Bu h\u00fccresel ya\u015flanma imzalar\u0131, 15 y\u0131ll\u0131k bir s\u00fcre boyunca hastal\u0131klar\u0131n ortaya \u00e7\u0131kmas\u0131 ve \u00f6l\u00fcmc\u00fcl sonu\u00e7larla yak\u0131ndan ili\u015fkilidir. \u00d6rne\u011fin, Alzheimer hastal\u0131\u011f\u0131 riskini art\u0131rd\u0131\u011f\u0131 bilinen APOE4 geni ta\u015f\u0131yan ki\u015filerde, astrosit ad\u0131 verilen bir beyin h\u00fccresi tipi h\u0131zl\u0131 bir \u015fekilde ya\u015flan\u0131rken, makrofaj ad\u0131 verilen ba\u011f\u0131\u015f\u0131kl\u0131k h\u00fccrelerinde g\u00f6rece gen\u00e7le\u015fme g\u00f6zleniyor. Buna kar\u015f\u0131n, APOE2 geni ta\u015f\u0131y\u0131c\u0131lar\u0131, astrositlerin daha gen\u00e7 ve makrofajlar\u0131n daha ya\u015fl\u0131 oldu\u011fu ters bir profil sergiliyor. Bu farkl\u0131l\u0131klar, APOE4 geninin, ge\u00e7mi\u015fte patojenlere kar\u015f\u0131 hayatta kalma avantaj\u0131 sa\u011flayan ba\u011f\u0131\u015f\u0131kl\u0131k uyan\u0131kl\u0131\u011f\u0131n\u0131 g\u00fc\u00e7lendirerek, beynin h\u0131zl\u0131 ya\u015flanmas\u0131 pahas\u0131na evrimsel mekanizmalarla a\u00e7\u0131klanabilir.<\/p>\n

Astrositlerin a\u015f\u0131r\u0131 ya\u015flanmas\u0131, APOE4 geninin iki kopyas\u0131na sahip ki\u015filerde Alzheimer hastal\u0131\u011f\u0131 geli\u015ftirme riskini \u00fc\u00e7 kat art\u0131r\u0131rken, ayn\u0131 h\u00fccrelerin gen\u00e7le\u015fmesi bu riski \u00f6nemli \u00f6l\u00e7\u00fcde azalt\u0131yor. Benzer \u015fekilde, iskelet kas h\u00fccrelerinin belirgin \u015fekilde ya\u015flanmas\u0131, amyotrofik lateral skleroz (ALS) ad\u0131 verilen ciddi bir n\u00f6rodejeneratif hastal\u0131\u011f\u0131n riskini 12,7 kat art\u0131r\u0131yor. Sigara i\u00e7enlerde, solunum epitel h\u00fccrelerinin h\u0131zland\u0131r\u0131lm\u0131\u015f ya\u015flanmas\u0131, sadece sigara i\u00e7menin neden oldu\u011fu akci\u011fer kanseri riskini %58 oran\u0131nda art\u0131r\u0131yor.<\/p>\n

H\u00fccresel ya\u015flanma imzalar\u0131, di\u011fer hastal\u0131klar\u0131n tahmin edilmesine de olanak tan\u0131yor. Akci\u011fer onar\u0131m\u0131nda kilit rol oynayan tip 2 alveol h\u00fccrelerinin a\u015f\u0131r\u0131 ya\u015flanmas\u0131, sigara i\u00e7meyenler bile olsa akci\u011fer kanseri riski ile ili\u015fkilendiriliyor. Tip 2 diyabet i\u00e7in, iltihaplanmada rol oynayan miyeloid soy h\u00fccrelerinin belirgin \u015fekilde ya\u015flanmas\u0131, kan \u015fekeri seviyesinin y\u00fcksek olmas\u0131 gibi geleneksel fakt\u00f6rler olmasa bile riski \u00f6nemli \u00f6l\u00e7\u00fcde art\u0131r\u0131yor.<\/p>\n

\u00c7al\u0131\u015fma, ya\u015fam tarz\u0131n\u0131n h\u00fccresel ya\u015flanmay\u0131 do\u011frudan etkiledi\u011fini de ortaya koyuyor. Sigara i\u00e7meme, alkol t\u00fcketiminin \u0131l\u0131ml\u0131 olmas\u0131, normal v\u00fccut kitle indeksi, d\u00fczenli fiziksel aktivite ve yeterli uyku ile karakterize edilen sa\u011fl\u0131kl\u0131 bir ya\u015fam tarz\u0131 benimseyen bireylerin h\u00fccreleri genel olarak daha gen\u00e7 g\u00f6r\u00fcn\u00fcyor. Buna kar\u015f\u0131n, sigara i\u00e7me ve obeziteyi bir araya getirenler, bir\u00e7ok h\u00fccre tipinde h\u0131zland\u0131r\u0131lm\u0131\u015f ya\u015flanma g\u00f6steriyor.<\/p>\n

H\u00fccresel ya\u015flanman\u0131n birikimli y\u00fck\u00fc, hayatta kalma \u00fczerinde b\u00fcy\u00fck bir etkiye sahip. 20\u2019den fazla h\u00fccre tipinde h\u0131zland\u0131r\u0131lm\u0131\u015f ya\u015flanma g\u00f6steren ki\u015filerin 15 y\u0131ll\u0131k sa\u011fkal\u0131m oran\u0131 yakla\u015f\u0131k %34 iken, h\u00fccreleri normal \u015fekilde ya\u015flananlarda bu oran %90\u2019d\u0131r. Tersine, gen\u00e7le\u015fmi\u015f ba\u011f\u0131\u015f\u0131kl\u0131k veya n\u00f6ron h\u00fccreleri, \u00f6mr\u00fc uzat\u0131yor. \u00c7ok h\u00fccreli bir risk skoru geli\u015ftirilerek \u00f6l\u00fcmc\u00fcl riskin stratifikasyonu sa\u011flanm\u0131\u015f ve bu skor, farkl\u0131 proteomik analiz platformlar\u0131 \u00fczerinde g\u00fc\u00e7l\u00fc tahmin yetene\u011fi sergilemi\u015ftir.<\/p>\n

Bu ke\u015fifler, h\u00fccresel d\u00fczeyde insan ya\u015flanmas\u0131n\u0131 anlamak i\u00e7in yeni bir yol sunuyor. Hastal\u0131k risklerinin de\u011ferlendirilmesi ve en savunmas\u0131z h\u00fccre tiplerini hedef alarak potansiyel terap\u00f6tik hedeflerin belirlenmesi i\u00e7in ki\u015fiselle\u015ftirilmi\u015f yakla\u015f\u0131mlar\u0131n \u00f6n\u00fcn\u00fc a\u00e7\u0131yor. Ya\u015flanma art\u0131k tek tip bir s\u00fcre\u00e7 olarak de\u011fil, her biri sa\u011fl\u0131k ve hastal\u0131k \u00fczerinde farkl\u0131 etkiler yaratabilen farkl\u0131 h\u00fccresel yollar\u0131n bir mozaik olarak g\u00f6r\u00fcl\u00fcyor.<\/p>\n

\n

Attributions et sources<\/h2>\n

Origine de l\u2019\u00e9tude<\/h3>\n

DOI\u00a0:<\/strong> https:\/\/doi.org\/10.1038\/s41591-026-04446-y<\/a><\/p>\n

Titre\u00a0:<\/strong> Plasma proteomic signatures of cellular aging predict human disease<\/p>\n

Revue : <\/strong> Nature Medicine<\/p>\n

\u00c9diteur : <\/strong> Springer Science and Business Media LLC<\/p>\n

Auteurs : <\/strong> Daisy Yi Ding; Veronica Augustina Bot; Kenneth L. Chen; James W. Groves; R\u00f3bert P\u00e1lovics; Daisuke Masuda; Amelia Farinas; Hamilton Se-Hwee Oh; Viktoria Wagner; Nannan Lu; ; Carlos Cruchaga; Alina Isakova; Jonathan M. Schott; Tony Wyss-Coray<\/p>\n","protected":false},"excerpt":{"rendered":"

Kandaki h\u00fccresel ya\u015flanma hastal\u0131k risklerini ortaya \u00e7\u0131kar\u0131yor 60.000 ki\u015fide 7.000\u2019den fazla plazma proteini \u00fczerinde yap\u0131lan derinlemesine bir analiz, n\u00f6ronlardan kas h\u00fccrelerine ve ba\u011f\u0131\u015f\u0131kl\u0131k h\u00fccrelerine kadar 40\u2019tan fazla h\u00fccre tipinin biyolojik ya\u015f\u0131n\u0131 tahmin edebilen modeller geli\u015ftirilmesini sa\u011flad\u0131. Sonu\u00e7lar, ya\u015flanman\u0131n t\u00fcm h\u00fccreleri ayn\u0131 \u015fekilde etkilemedi\u011fini g\u00f6steriyor: bireylerin %20 ila %25\u2019i tek bir h\u00fccre tipinde h\u0131zland\u0131r\u0131lm\u0131\u015f ya\u015flanma g\u00f6sterirken,… Okumaya devam et Kandaki h\u00fccresel ya\u015flanma hastal\u0131k risklerini ortaya \u00e7\u0131kar\u0131yor<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3,2],"tags":[],"class_list":["post-17","post","type-post","status-publish","format-standard","hentry","category-insan-insani","category-saglik","entry"],"_links":{"self":[{"href":"https:\/\/crseh.com\/tr\/wp-json\/wp\/v2\/posts\/17","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/crseh.com\/tr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/crseh.com\/tr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/crseh.com\/tr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/crseh.com\/tr\/wp-json\/wp\/v2\/comments?post=17"}],"version-history":[{"count":1,"href":"https:\/\/crseh.com\/tr\/wp-json\/wp\/v2\/posts\/17\/revisions"}],"predecessor-version":[{"id":18,"href":"https:\/\/crseh.com\/tr\/wp-json\/wp\/v2\/posts\/17\/revisions\/18"}],"wp:attachment":[{"href":"https:\/\/crseh.com\/tr\/wp-json\/wp\/v2\/media?parent=17"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/crseh.com\/tr\/wp-json\/wp\/v2\/categories?post=17"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/crseh.com\/tr\/wp-json\/wp\/v2\/tags?post=17"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}