Cells depend on specific stimuli, such as trophic factors, for survival and in the absence of such stimuli, undergo apoptosis. How do cells initiate apoptosis in response to the withdrawal of trophic factors or other dependent stimuli? Recent studies of apoptosis induction by neurotrophin withdrawal...
Red cells undergo several physicochemical changes as they age in the circulation. Several of these changes have been proposed as a recognition tag for macrophages. Most prevalent hypotheses for red cell clearance mechanism(s) are expression of neoantigens on red cell surface, exposure ...
Describe the process by which a cell breaks down when apoptosis occurs. How do mitochondria initiate apoptosis? What are two "processing" pathways Antigen Presenting Cells (APC's) can use? What role(s) do mitochondria play in apoptosis? What would...
(Figure 1a).4 However, it should be noted that apoptotic blebbing is not a universal feature of programmed cell death, some cell types do not appear to generate membrane blebs nor undergo fragmenta- tion.5 Nonetheless, blebbing is a very common feature of apoptotic cells and has become a ...
aAs a result, a large portion of implanted cells undergo apoptosis and are cleared from the transplantation site by macrophages,which leads to incomplete repair 结果,被种入的细胞的一个大部分接受apoptosis和从移植站点被清除被巨噬细胞,导致残缺不全的修理[translate] ...
1. Explain meiosis and how it is different from mitosis. . 2. What cells are the only human cells to undergo meiosis? 3. List male and female reproductive organs and their functions and similarities. How do cells produced in meiosis compare with those produced in mitosis?
afor a-smooth muscle actin in serial sections. Several anti-Fas:APO 1 positive foam cells were revealed to undergo apoptosis by[translate] a想到达明天,现在就要启程。 Thought will reach tomorrow, now must start on a journey.[translate]
Apoptosis is essential, for instance during embryonic development. An example is duringhuman fetal development wherein the cells between the fingers of the fetus undergoapoptotic cell death so that the digits would not remain fused but separate. Also called: type I cell death. ...
Remarkably, even mice lacking all mediators critical for p53-induced apoptosis, G1/S boundary cell cycle arrest and cell senescence do not develop any tumours spontaneously. In this review we discuss current understanding of the mechanisms by which p53 induces cell death and how this affects p53-...
How do CTL and NK cells cause other cells to undergo apoptosis? What is the function of antipodal cells and synergids? What is the cell membrane and what is its function? Explain the functions of the cell membrane. What is a cell nucleus? Describe its functions. How does cell size influe...