APC cells present ______________ antigen to T cells.(a) Axon(b) Myelin(c) Actin(d) OligodendrocytesI have been asked this question during an interview.My question is taken from Biopharmaceuticals topic in chapter Biopharmaceuticals of Drug Biotechnology

APC cells present ______________ antigen to T cells.(a) Axon(b) Myelin

1.	APC cells present ______________ antigen to T cells.(a) Axon(b) Myelin(c) Actin(d) OligodendrocytesI have been asked this question during an interview.My question is taken from Biopharmaceuticals topic in chapter Biopharmaceuticals of Drug Biotechnology
Answer» Correct answer is (B) Myelin To elaborate: APC cells present myelin antigen to T-cells. These t cells PASS through the BBB. NORMALLY BBB prevents the passage of potentially harmful substances through blood vessel walls within the BRAIN. But MS patients’ BBB ‘springs a leak’ which tends to allow all the activated t cells across the BBB which attack the myelin sheath.

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