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Related Concept Videos

Primary Lymphoid Organs01:16

Primary Lymphoid Organs

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.
The red bone marrow is a soft, spongy tissue nestled in the interior of long bones such as the humerus and femur. It is the site...
Secondary Lymphoid Organs01:15

Secondary Lymphoid Organs

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 Tissues

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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Cells of the Adaptive Immune Response01:23

Cells of the Adaptive Immune Response

The T and B lymphocytes of the adaptive immune system develop from common lymphoid progenitor cells in the bone marrow. These progenitors give rise to precursors that eventually develop into both T and B lymphocytes. As these precursors mature, they gain the ability to detect and respond to foreign antigens in the body, a process known as immunocompetence. Additionally, these precursors acquire self-tolerance, a process that ensures they do not react to self-antigens. This intricate system...
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Graves' Disease I: Introduction

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B Cell Activation and Differentiation

The adaptive immune response, a sophisticated defense mechanism, relies on the activation and differentiation of B lymphocytes, or B cells. These processes enable our bodies to mount a tailored response against specific pathogens such as bacteria, free virus particles, toxins, and parasites.
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Related Experiment Video

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Tumor Engraftment in a Xenograft Mouse Model of Human Mantle Cell Lymphoma
10:52

Tumor Engraftment in a Xenograft Mouse Model of Human Mantle Cell Lymphoma

Published on: March 30, 2018

Hodgkin lymphoma.

Ralf Küppers1, Andreas Engert, Martin-Leo Hansmann

  • 1Institute of Cell Biology (Cancer Research), Medical School, University of Duisburg-Essen, Essen, Germany. ralf.kueppers@uk-essen.de

The Journal of Clinical Investigation
|October 2, 2012
PubMed
Summary
This summary is machine-generated.

Hodgkin lymphoma (HL) involves rare tumor cells that lose B cell traits and co-express diverse markers. Understanding their signaling and microenvironment interactions offers new targeted therapy strategies.

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Area of Science:

  • Hematology
  • Oncology
  • Cancer Biology

Background:

  • Hodgkin lymphoma (HL) is a common B cell cancer where tumor cells (Hodgkin and Reed-Sternberg cells) are rare.
  • These tumor cells exhibit an unusual phenotype, losing B cell markers and co-expressing markers from various hematopoietic cell types.
  • The pathogenesis of HL involves deregulated signaling pathways and interactions with the tumor microenvironment.

Purpose of the Study:

  • To elucidate the complex cellular and molecular mechanisms underlying Hodgkin lymphoma pathogenesis.
  • To identify key signaling pathways and microenvironmental interactions critical for Hodgkin and Reed-Sternberg cell survival and proliferation.
  • To explore potential novel therapeutic strategies targeting these dependencies in HL.

Main Methods:

  • Analysis of Hodgkin and Reed-Sternberg cell phenotype and marker expression.
  • Investigation of signaling pathways, including NF-κB and JAK/STAT, within tumor cells.
  • Examination of interactions between tumor cells and the surrounding microenvironment.

Main Results:

  • Hodgkin and Reed-Sternberg cells display a unique phenotype with aberrant marker co-expression.
  • Deregulated activation of multiple signaling pathways and transcription factors is a hallmark of these cells.
  • Frequent mutations in the NF-κB and JAK/STAT pathways contribute to HL pathogenesis.
  • Tumor cell dependency on microenvironmental interactions was observed.

Conclusions:

  • Hodgkin lymphoma pathogenesis is driven by genetic lesions and complex cellular interactions.
  • The aberrant signaling and microenvironmental dependencies of Hodgkin and Reed-Sternberg cells present therapeutic vulnerabilities.
  • Targeted therapies focusing on these pathways and interactions hold promise for future HL treatment.