KM (Kerotinocyte Medium)培养基

角质细胞培养基是为正常人类角质细胞体外培养设计的适于其生长的培养基。无血清培养基是无菌的、液体培养基，包含必需和非必需氨基、维生素、有机和无机化合物、激素、生长因子、微量矿物质。该培养基不含血清。该培养基含碳酸氢盐缓冲体系，在5%二氧化碳/95%空气培养箱中平衡时PH值为7.4。该培养基在数量上和质量上都保证理想的营养平衡状态，选择性促进体外正常人类角质细胞的生长。
成分
角质细胞培养基包含500 ml基础培养基，5 ml角质细胞生长添加物，(KGS,目录编号2152)和5 ml青霉素/链霉素溶液(P/S,目录编号0503)

3. Yang YC, Fu HC, Wu CY, Wei KT, Huang KE, Kang HY. (2013) 'Androgen Receptor Accelerates Premature Senescence of Human Dermal Papilla Cells in Association with DNA Damage.'

The dermal papilla, located in the hair follicle, expresses androgen receptor and plays an important role in hair growth. Androgen/Androgen receptor actions have been implicated in the pathogenesis of androgenetic alopecia, but the exact mechanism is not well known. Recent studies suggest that balding dermal papilla cells exhibit premature senescence, upregulation of p16(INK4a), and nuclear expression of DNA damage markers. To investigate whether androgen/AR signaling influences the premature senescence of dermal papilla cells, we first compared frontal scalp dermal papilla cells of androgenetic alopecia patients with matched normal controls and observed that premature senescence is more prominent in the dermal papilla cells of androgenetic alopecia patients. Exposure of androgen induced premature senescence in dermal papilla cells from non-balding frontal and transitional zone of balding scalp follicles but not in beard follicles. Overexpression of the AR promoted androgen-induced premature senescence in association with p16(INK4a) upregulation, whereas knockdown of the androgen receptor diminished the effects of androgen. An analysis of γ-H2AX expression in response to androgen/androgen receptor signaling suggested that DNA damage contributes to androgen/androgen receptor-accelerated premature senescence. These results define androgen/androgen receptor signaling as an accelerator of premature senescence in dermal papilla cells and suggest that the androgen/androgen receptor-mediated DNA damage-p16(INK4a) axis is a potential therapeutic target in the treatment of androgenetic alopecia. Less

4. Yang YC, Fu HC, Wu CY, Wei KT, Huang KE, Kang HY. (2013) "Androgen Receptor Accelerates Premature Senescence of Human Dermal Papilla Cells in Association with DNA Damage." PLOS ONE. 8: e79434.

The dermal papilla, located in the hair follicle, expresses androgen receptor and plays an important role in hair growth. Androgen/Androgen receptor actions have been implicated in the pathogenesis of androgenetic alopecia, but the exact mechanism is not well known. Recent studies suggest that balding dermal papilla cells exhibit premature senescence, upregulation of p16(INK4a), and nuclear expression of DNA damage markers. To investigate whether androgen/AR signaling influences the premature senescence of dermal papilla cells, we first compared frontal scalp dermal papilla cells of androgenetic alopecia patients with matched normal controls and observed that premature senescence is more prominent in the dermal papilla cells of androgenetic alopecia patients. Exposure of androgen induced premature senescence in dermal papilla cells from non-balding frontal and transitional zone of balding scalp follicles but not in beard follicles. Overexpression of the AR promoted androgen-induced premature senescence in association with p16(INK4a) upregulation, whereas knockdown of the androgen receptor diminished the effects of androgen. An analysis of γ-H2AX expression in response to androgen/androgen receptor signaling suggested that DNA damage contributes to androgen/androgen receptor-accelerated premature senescence. These results define androgen/androgen receptor signaling as an accelerator of premature senescence in dermal papilla cells and suggest that the androgen/androgen receptor-mediated DNA damage-p16(INK4a) axis is a potential therapeutic target in the treatment of androgenetic alopecia. Less