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    • 2. 发明授权
    • Products and methods for improving keratinocyte adhesion to the dermis
    • 改善角质细胞对真皮粘附的产品和方法
    • US5770562A
    • 1998-06-23
    • US469500
    • 1995-06-06
    • Robert E. BurgesonGregory P. LunstrumPatricia RousselleDouglas R. KeeneM. Peter Marinkovich
    • Robert E. BurgesonGregory P. LunstrumPatricia RousselleDouglas R. KeeneM. Peter Marinkovich
    • A61K38/39A61L27/22A61L27/60C12N5/00C12N5/071C07K14/78
    • C12N5/0629A61K38/39A61L27/227A61L27/60C12N5/0068C12N2501/58C12N2533/50C12N2533/52Y10S530/842
    • The isolated proteins kalinin and k-laminin are disclosed to provide adhesion between epidermal keratinocytes and the underlying dermis. Purified kalinin localizes to the anchoring filaments of basement membranes of human subepithelial skin, trachea, esophagus, cornea and amnion when such areas are probed with BM165 monoclonal antibody after localization. The protein has a molecular weight of approximately 410-495 kDa and exists in a cell-associated form (about 495 kDa) and two medium-associated forms (about 460 and 410 kDa, respectively). The BM165 epitope is located on the 165-kDa and 200 kDa subunits. Kalinin has a rotary-shadow image revealing an asymmetric rod 107-nm long having two globules at a first end and a single globule at an opposing end. The k-laminin adhesion molecule is an isolated heterotrimeric laminin variant that has a molecular weight of about 650 kDa and separates on western blots into first and second fragments that are similar to the B1 and B2 fragments of laminin. K-laminin also includes a third fragment of 190 kDa that is not immunoreactive with monoclonal antibodies 1F5, 11D5 and 4C7, but is immunoreactive with a monoclonal antibody BM165. Kalinin and k-laminin are preferably covalently associated. A method is also disclosed for improving adhesion of transplanted keratinocytes to an underlying substrate, such as the human dermis, by optimizing production of kalinin from cultured keratinocytes, or by providing an exogenous source of kalinin between the keratinocytes and substrate.
    • 公开了分离的蛋白质kalinin和k-层粘连蛋白以提供表皮角化细胞和潜在的真皮之间的粘附。 纯化的卡林林定位于人类上皮皮肤,气管,食管,角膜和羊膜的基底膜的锚定细丝上,当这些区域在定位后用BM165单克隆抗体探测时。 蛋白质具有约410-495kDa的分子量,并以细胞相关形式(约495kDa)和两种培养基相关形式(分别为约460和410kDa)存在。 BM165表位位于165kDa和200kDa亚基上。 加里宁具有旋转阴影图像,其显示107nm长的不对称杆,在第一端具有两个球,在相对端具有单个球。 k-层粘连蛋白粘附分子是分离的异三聚体层粘连蛋白变体,其分子量为约650kDa,并将蛋白质印迹分离成与层粘连蛋白的B1和B2片段相似的第一和第二片段。 K-层粘连蛋白还包括与单克隆抗体1F5,11D5和4C7不具有免疫反应性的190kDa的第三片段,但是与单克隆抗体BM165具有免疫反应性。 卡利宁和k-层粘连蛋白优选共价结合。 还公开了通过优化来自培养的角质形成细胞的生产kalinin或通过在角质形成细胞和底物之间提供外源的卡林林来改善移植的角质形成细胞与底物(例如人真皮)的粘附的方法。