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The pituitary is the master endocrine gland of the body. It undergoes many changes after birth, and these changes may be mediated by the differentiation of pituitary stem cells. Stem cells in any tissue source must display (1) pluripotent capacity, (2) capacity for indefinite self-renewal, and (3) a lack of specialization. Unlike neural stem cells identified in the hippocampus and subventricular zone,...
Horvath et al. called relatively small ACTH-immunoreactive (ACTH-IR) cells observed in basophil invasion “proopiomelanocortin (POMC) cells,” and these cells were supposed to be different from larger ACTH-IR cells in human adenohypophysis. To clarify the existence of “anterior POMC cells,” we examined 21 autopsy cases taking note of follicular cells (FCs). We found that smaller ACTH-IR cells were clustered...
MAP-2, a well characterized member of the microtubule associated protein (MAP) family, binds to and stabilizes microtubules and is involved in cell proliferation as well as neuronal differentiation. The aim of the present work was to study MAP-2 expression in human adenohypophyses and pituitary adenomas. To our knowledge, data regarding MAP-2 expression in human pituitaries has not been reported to...
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