Lymphocyte Updates - Cancer, Autoimmunity and Infection 2017
DOI: 10.5772/intechopen.69058
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Lymphoid Hematopoiesis and Lymphocytes Differentiation and Maturation

Abstract: Lymphocytes belong to the lymphoid lineage and are considered as divergent from other blood cells lineages as those from the myeloid or erythroid lineage. Lymphoid hematopoiesis is not trivial, because although lymphocytes are found in the bloodstream and their precursor originates in the bone marrow, they mainly belong to the separate lymphatic system, which interacts with the blood circulation. We will discuss B cell differentiation in the bone marrow and the later stages of maturation in secondary lymphoid … Show more

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Cited by 4 publications
(24 citation statements)
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“…The mature myeloid lineage cells, mediating the innate immune response, are erythrocytes, platelets, granulocytes, monocytes and macrophages. The mature lymphoid lineage cells, responsible for adaptive immunity, are B lymphocytes, T lymphocytes and natural killer cellsalbeit with cellular maturation occurring in the lymph nodes and spleen (Marti et al, 2017). Innate immune cells are fast responders to a plethora of targets at a cost of specificity, whereas adaptive immune cells are highly target-specific at a cost of rapid action.…”
Section: Hematopoiesis In the Bone Marrowmentioning
confidence: 99%
“…The mature myeloid lineage cells, mediating the innate immune response, are erythrocytes, platelets, granulocytes, monocytes and macrophages. The mature lymphoid lineage cells, responsible for adaptive immunity, are B lymphocytes, T lymphocytes and natural killer cellsalbeit with cellular maturation occurring in the lymph nodes and spleen (Marti et al, 2017). Innate immune cells are fast responders to a plethora of targets at a cost of specificity, whereas adaptive immune cells are highly target-specific at a cost of rapid action.…”
Section: Hematopoiesis In the Bone Marrowmentioning
confidence: 99%
“…Tα δευτερογενή λεμφικά όργανα (λεμφαδένες, σπλήνας, αμυγδαλές, πλάκες του Peyer) είναι οι ιστοί όπου ολοκληρώνεται η διαφοροποίηση των Β λεμφοκυττάρων μετά την επαφή τους με αντιγόνο, η οποία συνοδεύεται από επαγωγή του πολλαπλασιασμού τους μέσω αλληλεπίδρασης με Τ λεμφοκύτταρα σε ειδικές μικροανατομικές περιοχές που καλούνται βλαστικά κέντρα (germinal centers, GC) 6,7…”
Section: η επίδραση του λεμφικού μικροπεριβάλλοντος στη διαφοροποίηση των β λεμφοκυττάρωνunclassified
“…(31,32) O equilíbrio entre se autorrenovar e se diferenciar é regulado por fatores extrínsecos e intrínsecos à célula, dentre eles a presença de citocinas, interações com o nicho, expressão de marcadores celulares e receptores, reguladores de transdução de sinal, fatores de transcrição, reguladores epigenéticos e microRNAs. (16,33) Esta sequência coordenada de sinalizações induz a expressão de fatores restritos à linhagem e suprime fatores que promovem outras linhagens, resultando na expressão de conjuntos apropriados de fatores e receptores específicos de linhagem. (16,31,32) A linhagem hematopoiética, através de um ciclo lento, inicia com CTH que origina os progenitores linfoide comum e/ou mieloide por meio de estímulos mediados por fatores estimuladores de colônia (FEC), atuando especialmente em células de origem mieloide, e as interleucinas (IL) que terão papel fundamental na diferenciação de células linfocitárias.…”
Section: Medula óSsea Na Ontogenia Normalunclassified
“…(16,31,32) A linhagem hematopoiética, através de um ciclo lento, inicia com CTH que origina os progenitores linfoide comum e/ou mieloide por meio de estímulos mediados por fatores estimuladores de colônia (FEC), atuando especialmente em células de origem mieloide, e as interleucinas (IL) que terão papel fundamental na diferenciação de células linfocitárias. (33,34) O progenitor mieloide comum, através de estímulos de fatores de transcrição e citocinas, se diferencia em precursores da linhagem eritroide, megacariocítica, mieloide, monocítica, eosinofílica, mastocitária ou basofílica. Já o progenitor linfoide comum (CFU-L) irá se diferenciar em células precursoras pré-B (CFU-B) ou pré-T (CFU-T).…”
Section: Medula óSsea Na Ontogenia Normalunclassified
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