Sentences with phrase «b lymphoid»

His group defined a functional niche for B cells (around sinusoids in the bone marrow), identified the first two mutants that abrogate marginal zone B lymphocyte development, developed the concept of a follicular versus marginal zone B lymphoid cell - fate decision, and discovered two new defined stages of peripheral B cell development, the marginal zone precursor (MZP) B cell, and the Follicular type II B cell.

Not exact matches

They also found that 1,4 - BQ was more toxic to HSCs, myeloid progenitors (which give rise to red blood cells and platelets, among others) and B cell lymphoid progenitors than it was to T cell lymphoid progenitors.

A research group from the Department of Biomedicine at the University and the University Children's Hospital of Basel now discovered that innate lymphoid cells become activated and induce specific T and B cell responses during inflammation.

Induction of rotavirus - specific memory B cells in gut - associated lymphoid tissue after intramuscular immunization.

Distribution of rotavirus - specific memory B cells in gut - associated lymphoid tissue after primary immunization.

Hsiou - Chi Liou and colleagues find that c - Rel, a lymphoid - specific member of the NF - kappaB / Rel family of transcriptional factors, is essential for B lymphocyte survival and cell cycle progression, [i] and that it is important for inducible cytokine and cytokine receptor expression and a key regulator of early activation and proliferation in T cells.

Inductive sites include regions such as mucosa - associated lymphoid tissue (MALT) and local / regional mucosa - draining lymph nodes, where antigens from mucosal surfaces stimulate naive T and B lymphocytes.

The diagnosis of 6 cases were as follows; three diffuse large B cell lymphomas, two mucosa - associated lymphoid tissue lymphomas and one of other B cell neoplasias.

The group of promoters, whose H3K4me3 levels were affected by combined chidamide and decitabine treatment, but not by either chidamide or decitabine treatment alone, was enriched with binding site motifs for PU.1, a transcription factor that activates gene expression during myeloid and B - cell lymphoid cell development15, 16 (Figure 5C).

Altogether, these results indicate that the xenograft grew from the patient's Epstein - Barr virus - infected B - lymphoid cells and could be assimilated to posttransplant lymphoproliferative disease.

This is in accordance with previous reports that decitabine and 5 - azacytidine produce a marked synergistic effect in combination with suberoylanilide hydroxamic acid and romidepsin in T - lymphoma cell lines by modulating cell cycle arrest and apoptosis.26, 27 As a mechanism of action, KMT2D mutations of B - lymphoma cells promote malignant outgrowth by perturbing methylation of H3K4 that affect the JAK - STAT, Toll - like receptor, or B - cell receptor pathway.28, 29 Here our study indicated that dual treatment with chidamide and decitabine enhanced the interaction of KMT2D with the transcription factor PU.1, thereby inactivating the H3K4me - associated signaling pathway MAPK, which is constitutively activated in T - cell lymphoma.13, 30,31 The transcription factor PU.1 is involved in the development of all hematopoietic lineages32 and regulates lymphoid cell growth and transformation.33 Aberrant PU.1 expression promotes acute myeloid leukemia and is related to the pathogenesis of multiple myeloma via the MAPK pathway.34, 35 On the other hand, PU.1 is also shown to interact with chromatin remodeler and DNA methyltransferease to control hematopoiesis and suppress leukemia.36 Our data thus suggested that the combined action of chidamide and decitabine may interfere with the differentiation and / or viability of PTCL - NOS through a PU.1 - dependent gene expression program.

PTPN22 is involved in the formation of a key protein known as lymphoid tyrosine phosphatase (LYP), which helps control the activity of T and B cells in the immune system.

Amplification of the JAK2 locus has been described in Hodgkin disease and mediastinal B - cell lymphoma, 18,19 and biallelic inactivating mutations in suppressor of cytokine signaling - 1 (SOCS - 1), a negative regulator of JAK2, have been identified in mediastinal B - cell lymphoma.20 Genomic analysis of JAK2 and of other JAK - STAT pathway members may lead to the identification of mutations of the JAK - STAT pathway in lymphoid diseases and other malignancies.

The aim of this study is to determine whether a 20 - week treatment course with 1 μg / kg / week of pegylated interferon alpha 2 b (peg - IFN - α2b) will reduce the levels of HIV - 1 proviral DNA levels in circulating PBMC and mucosa - associated lymphoid tissue (MALT) in HIV - infected individuals receiving long - term anti-retroviral therapy (ART).

Although we were able to now detect more distinct T and B cell populations in the transplanted immunocompetent MRL and 129SvJ mice, the numbers of lymphoid cells remained far less than would be expected after bone marrow transplantation.