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Abstract Tobacco smoke negatively affects human bronchial epithelial (HBE) cells and is directly implicated in the etiology of smoking related respiratory diseases

10.1111/jcmm.17328 17 GuoH.ChenS.XieM.ZhouC.ZhengM

Figure 1 2.1 The role of p53 in spermatogonia The maintenance of spermatogenesis throughout the males lifetime relies on SSCs, which possess the ability to self-renew and differentiate into committed spermatogonial progenitor cells (SPCs) ( single (A s ), A paired (A pr ) and A aligned (A al ) spermatogonia and can be distinguished by several genes, including Ngn3 , Sox3 , Gfr1 and Plzf ( Gfr1 + cells (mainly A s , A pr , and some A al ) are stem cells that can transform into Ngn3/Sox3 + (mainly A al and some A pr ) committed SPCs

Lupberger, J

ROS and the metabolic adaptations which accompany ROS exposure, have now been shown to mediate cellular reprogramming by selecting for aggressive features, such as enhanced invasiveness and resistance to therapy