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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...
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...
Lymphoid Cells and Tissues01:18

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.
Lymphoid cells consist of various types of immune system cells. These include B and T lymphocytes, which are responsible for producing antibodies and killing infected cells, respectively. Dendritic cells act as messengers between the innate and adaptive...
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...
Disorders of Leukocytes01:27

Disorders of Leukocytes

Leukocyte disorders can lead to either leukopenia, characterized by an abnormally low leukocyte count, or leukocytosis, marked by a very high leukocyte number.
Leukopenia may result from bone marrow disorders, autoimmune diseases, and infectious diseases. For example, conditions such as multiple myeloma and aplastic anemia can impair the bone marrow's ability to produce adequate leukocytes. Similarly, autoimmune diseases like lupus and viral infections such as HIV can prompt the immune system...

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Related Experiment Video

Updated: Jun 13, 2026

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

Lymphoblastic lymphoma in adults.

John W Sweetenham1

  • 1Hematology & Oncology/R35, Cleveland Clinic Foundation, OH 44195, USA. sweetej@ccf.org

Current Hematologic Malignancy Reports
|April 29, 2010
PubMed
Summary

Advances in gene expression profiling reveal insights into precursor T-cell and B-cell neoplasms, guiding treatment for lymphoblastic lymphoma. Intensive therapy and central nervous system prophylaxis are recommended, with stem cell transplant beneficial for relapsed disease.

Area of Science:

  • Hematology
  • Oncology
  • Molecular Biology

Background:

  • Gene expression profiling has significantly advanced the understanding of precursor T-cell and B-cell neoplasms.
  • Studies reveal leukemic arrest at various thymocyte maturation stages, with gene expression signatures indicating prognostic significance.

Purpose of the Study:

  • To summarize current understanding of precursor T-cell and B-cell neoplasms.
  • To outline optimal treatment strategies for adult lymphoblastic lymphoma.
  • To identify areas for future molecular research.

Main Methods:

  • Review of gene expression profiling studies in T-cell and B-cell neoplasms.
  • Analysis of current treatment strategies for adult lymphoblastic lymphoma.
  • Evaluation of the role of stem cell transplantation in remission and relapse.

Related Experiment Videos

Last Updated: Jun 13, 2026

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

Main Results:

  • Gene expression signatures correlate with prognostic significance in thymocyte maturation arrest.
  • Current evidence supports intensive induction, CNS prophylaxis, and maintenance therapy for lymphoblastic lymphoma, similar to acute lymphoblastic leukemia.
  • Stem cell transplantation shows no benefit in first remission but may be beneficial in relapsed disease.

Conclusions:

  • Further molecular studies are required to identify new therapeutic targets for precursor T-cell and B-cell neoplasms.
  • Optimal treatment for adult lymphoblastic lymphoma involves intensive chemotherapy and CNS prophylaxis.
  • Stem cell transplantation is a potential option for relapsed disease.