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Related Concept Videos

Primary Lymphoid Organs01:16

Primary Lymphoid Organs

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Primary lymphoid organs are pivotal in the formation, development, and maturation of lymphocytes, the white blood cells that serve as the backbone of our immune system. This crucial function underscores their fundamental role in maintaining our overall health and immunity. The two primary lymphoid organs of prime importance are the red bone marrow and the thymus.
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Secondary Lymphoid Organs01:15

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Secondary organs, including lymph nodes, the spleen, and mucosa-associated lymphoid tissue (MALT), work harmoniously to protect us from disease and infection.
The spleen is a vital organ in the lymphatic system, nestled in the upper left side of the abdomen. It is composed of two primary regions: the red pulp and the white pulp, each having distinct functions. The red pulp performs a significant role in blood filtration. It efficiently purges the blood of old or damaged red blood cells and...
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Lymphoid Cells and Tissues01:18

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Lymphoid cells and tissues are integral to the immune system, which is crucial in maintaining our body's defense against harmful pathogens. They form the building blocks of lymphoid organs, which include the spleen, thymus, and lymph nodes.
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T Cell Types and Functions01:24

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When T cells with CD4 markers are activated, they give rise to two types of effector cells: helper T cells and regulatory T cells. Meanwhile, T cells with CD8 markers differentiate into effector cytotoxic T cells. The differentiation of CD4 T cells into helper T cell subsets, such as Th1, Th2, and Th17 cells, is dependent on the antigen type, antigen-presenting cell, and regulatory cytokines.
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Tumor Immunotherapy01:27

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Immunotherapy is a treatment that boosts or manipulates the immune system to fight diseases, including cancer. For instance, by stimulating an immune response through vaccinations against viruses that cause cancers, like hepatitis B virus and human papillomavirus, these diseases can be prevented. Nonetheless, some cancer cells can avoid the immune system due to their rapid mutation and division. The immune response to many cancers involves three phases: elimination, equilibrium, and escape.
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T Cell Activation and Clonal Selection01:22

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T cells are integral to our adaptive immune system, recognizing and effectively responding to foreign antigens. T cell activation and clonal selection are pivotal in orchestrating this immune response. This article elucidates these mechanisms, detailing the roles of cluster of differentiation (CD) markers, major histocompatibility complex (MHC) molecules, costimulatory signals, and the process of clonal selection.
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Isolation of CD4+ T-cells and Analysis of Circulating T-follicular Helper cTfh Cell Subsets from Peripheral Blood Using 6-color Flow Cytometry
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Isolation of CD4+ T-cells and Analysis of Circulating T-follicular Helper cTfh Cell Subsets from Peripheral Blood Using 6-color Flow Cytometry

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Peripheral T Cell Lymphoma: an Overview.

P A Hall1, M A Richards1

  • 1a Imperial Cancer Research Fund, Lincoln's Inn Fields, and ICRF Clinical Oncology Unit, Guy's Hospital, St Thomas's Street, London.

Leukemia & Lymphoma
|July 27, 2016
PubMed
Summary
This summary is machine-generated.

Peripheral T cell lymphoma (PTCL) is a diverse group of Non-Hodgkin

Keywords:
Peripheral T cell lymphomaT lymphocytes histologynon-Hodgkin's lymphoma

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Area of Science:

  • Hematology
  • Oncology
  • Immunology

Background:

  • Peripheral T cell lymphoma (PTCL) comprises various histological subtypes originating from mature T lymphocytes.
  • PTCL accounts for 10-20% of non-Hodgkin's lymphoma cases in Western countries.
  • Increased diagnostic frequency is attributed to heightened awareness and advanced characterization techniques.

Purpose of the Study:

  • To review the current understanding of Peripheral T cell lymphoma (PTCL).
  • To discuss the diagnostic challenges and prognostic factors in PTCL.
  • To highlight the need for further research into treatment strategies for PTCL.

Main Methods:

  • Review of existing literature on Peripheral T cell lymphoma (PTCL).
  • Analysis of diagnostic trends and clinical presentation.
  • Evaluation of prognostic indicators including disease stage and histological subtype.

Main Results:

  • The clinical course of PTCL is variable and less documented than B cell lymphomas.
  • Disease stage is a significant prognostic determinant in PTCL.
  • The prognostic impact of histological subtype in PTCL remains uncertain.

Conclusions:

  • Peripheral T cell lymphoma (PTCL) diagnosis is increasing due to improved detection methods.
  • Prognosis in PTCL is influenced by disease stage, but subtype importance requires further study.
  • Aggressive chemotherapy may induce remission, but prospective studies are essential for optimal PTCL management.