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Naïve B Cell
In immunology, a naive B cell is a B cell that has not been exposed to an antigen. These are located in the tonsils, spleen, and primary lymphoid follicles in lymph nodes. Once exposed to an antigen, the naive B cell either becomes a memory B cell or a plasma cell that secretes antibodies specific to the antigen that was originally bound. Plasma cells do not last long in the circulation; this is in contrast to Memory B cell, memory cells that last for very long periods of time. Memory cells do not secrete antibodies until activated by their specific antigen. Naive B cells play a key role in predicting humoral responses to COVID-19 MRNA vaccine, mRNA vaccines in immunocompromised patients, specifically measuring naive B cell levels could help predict and improve vaccination outcomes. Notes and references {{Portal bar, Biology B cells Lymphocytes Human cells Immunology Immune system ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
B Cell Activation Naive To Plasma Cell
B, or b, is the second Letter (alphabet), letter of the Latin alphabet, used in the English alphabet, modern English alphabet, the alphabets of other western European languages and others worldwide. Its name in English is ''English alphabet#Letter names, bee'' (pronounced ), plural ''bees''. It represents the voiced bilabial stop in many languages, including English. In some other languages, it is used to represent other bilabial consonants. History The Roman derived from the Greek alphabet, Greek capital beta (letter), beta via its Old Italic script, Etruscan and Archaic Greek alphabets#Euboean, Cumaean variants. The Greek letter was an adaptation of the Phoenician alphabet, Phoenician letter bet (letter), bēt . The Ancient Egypt, Egyptian Egyptian hieroglyphs, hieroglyph for the consonant voiced bilabial plosive, /b/ had been an image of a foot (hieroglyph), foot and calf , but bēt (Phoenician for "house") was a modified form of a Proto-Sinaitic script, Proto-Sinait ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
