... the causes and treatment of multiple sclerosis Nature 1999, 399 :A4 0 -A4 7 Komurian-Pradel F, Paranhos-Baccala G, Bedin F, Ounanian-Paraz A, Sodoyer M, Ott C, Rajoharison A, Garcia E, Mallet F, Mandrand ... placenta and acute inflammatory MS lesions Immunohistochemistry was performed with mAb 6A2 B2 on human placenta (A) and an acute MS lesion (B) Arrowheads in A point to syncytiotrophoblast cell layer ... Intracellular (IC) expression was analyzed in fixed and permeabilized cells Monoclonal antibody 13H 5A5 was used as primary antibody Magnification × 1000 (D) Flow cytometry was performed on HeLa...