by The Ohio State University B Cells Extravasate, Convert Into Plasma Cells, and Synthesize Antibodies in Subacute Spinal Cord Injury (SCI) Lesions After Human SCI. B cells leave the vessel lumen (extravasate) and populate the perivascular space (2 weeks after SCI). These findings are corroborated by the detection of 2 different B cell antigens, CD20...