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Hücre siklusu ve kanser

Authors: Cabadak, Hülya;

Hücre siklusu ve kanser

Abstract

Hücre çogalması ve hücre siklusunun ilerlemesi büyümenin kontrolünde rolü olan genlerin ekspresyonu ile baglantılıdır. Ökaryot hücre siklusuM(mitoz) G , S ve G fazlarından olusmaktadır. Bu süreçte hücre uyarımı ve büyüme meydana gelir veya hücre G fazında durmaktadır. Hücre siklusunda G -S geçisinde, G -Mgeçisinde ve metafaz-anafaz geçisinde kontrol noktaları bulunmaktadır. Hücre siklusu siklin bagımlı kinazlar (cdk, katalitik altbirim) ve siklin (cyc, düzenleyici altbirim) tarafından kontrol edilmektedir. Hücre homeostazisi hücre çogalması, büyümenin durdurulması ve apoptozis (programlı hücre ölümü) ile sürdürülmektedir. Hücre siklusu içindeki olayları düzenleyen ve kontrol eden etkilesimler çok sayıda ve komplekstir. Hücre siklusunun düzenlenmesindeki hatalar hücre bölünmesinin kontrolunun bozulmasına neden olur. Hücre siklusu kontrol noktalarında degisimler kanser gelisimine neden olabilir. Kanser gelisiminde tümör baskılayıcı fonksiyon, DNA onarımı ve apoptozis kritik yolaklardır.

Proliferation and cell cycle progression are linked to the expression of genes associated with growth control. The eucaryotic cell cycle consists of an M (mitotic) phase, a G phase, the S phase and G phase. Non-dividing cells exist at G . Cell cycle is regulated by several critical cell cycle check points These are G -S check point, G -M check point and metaphase-anaphase check point. Cell cycle is controlled by the cycline dependent kinases (cdk, catalytic subunit) and cyclins (cyc, regulatory subunit). Homeostasis is within a cell is regulated by the balance between proliferation, growth arrest and apopto sis. Defects in cell cycle regulation inhibit controls for cell division. Alterations of cell cycle check points might result in cancer. The interactions which control and regulate the cascade of events within cell cycle are numerous and complex. Tumor supression of growth arrest, DNA repair and apoptosis, are all critical pathways in the development of cancers.

Country
Turkey
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Keywords

570, Tümör Baskılayıcı Gen, Siklin Bağımlı Kinazlar, Cell Cycle, Hücre siklusu;siklinler;siklin bağımlı kinazlar;tümör baskılayıcı gen;kanser, Cycline Dependent Kinases, 610, Cell cycle;cycline;cycline dependent kinases;tümorsupressor gene;cancer, Cycline, Kanser, Tümorsupressor Gene, Hücre Siklusu, Siklinler, Cancer

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
Green
Related to Research communities
Cancer Research