Muscular dystrophy may be caused by disturbances in a number of muscle proteins that appear to be part of a chain of interacting molecules that includes cytoskeletal, cell membrane, and basement membrane components. We found that the skeletal muscle cells in two cases of Walker-Warburg syndrome were severely deficient in the laminin beta 2 chain and in adhalin. The findings indicate that these two proteins are key molecules in the interactive protein complex conferring muscle stability and cell survival.
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