نماذج مناعه الدكتوره اروى

Types of APCs

Professional APCs:
🛑express both MHC class 1 & 2

🛑They include B cell,DCs,Macrophage

🛑They active CD4&CD8

📛📛📛📛📛

Non professional APCs:

🛑express only the MHC class1

🛑They include all nucletide cells

🛑They activate only CD8


مقارنه ذكرته الدكتوره ومش موجود ضمن مقارنات اللجنه العلميه

●Lymph nodes help in response to antigens in the TISSUES.

● Spleen helps in response for antigens carried by BLOOD.

● Mucosal-associated lymphoid tissues (MALTs) They help in response to antigens at MUCOSAL SURFACES.

Effector B cell or activated B cells or plasma cells
are the only cells that are capable of producing antibodies.

NATURAL Killer cells (NK cells) They are the only type of lymphocytes that provide NATURAL immunity They are *CD56 POSITIVE .