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Related Concept Videos

Tumor Progression02:07

Tumor Progression

Tumor progression is a phenomenon where the pre-formed tumor acquires successive mutations to become clinically more aggressive and malignant. In the 1950s, Foulds first described the stepwise progression of cancer cells through successive stages.
Colon cancer is one of the best-documented examples of tumor progression. Early mutation in the APC gene in colon cells causes a small growth on the colon wall called a polyp. With time, this polyp grows into a benign, pre-cancerous tumor. Further...
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...
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...
Development of the Lymphatic System01:15

Development of the Lymphatic System

The development of lymphatic tissues and vessels in embryonic life begins around the fifth week. These structures originate from the mesoderm layer, with lymph sacs emerging from developing veins.
The first lymph sacs to form are the paired jugular lymph sacs located at the junction of the internal jugular and subclavian veins. From these sacs, lymphatic capillary plexuses extend to the thorax, upper limbs, neck, and head, eventually forming lymphatic vessels. Each jugular lymph sac maintains a...
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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Updated: Jul 7, 2026

Generation of Human CD40-activated B cells
13:27

Generation of Human CD40-activated B cells

Published on: October 16, 2009

Lymphangiogenesis in development and human disease.

Kari Alitalo1, Tuomas Tammela, Tatiana V Petrova

  • 1Molecular/Cancer Biology Laboratory, Ludwig Institute for Cancer, Research, P.O.B. 63 (Haartmaninkatu 8), 00014 University of Helsinki, Finland. Kari.Alitalo@Helsinki.FI

Nature
|December 16, 2005
PubMed
Summary
This summary is machine-generated.

The lymphatic vascular system drains fluid and supports immunity. Advances in lymphatic biology promise better understanding and treatment for diseases like cancer and lymphoedema.

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Area of Science:

  • Lymphatic vascular biology
  • Physiology
  • Immunology

Background:

  • The lymphatic vasculature is a network draining interstitial fluid and returning it to the blood.
  • Lymphatic vessels play a crucial role in immune defense.
  • Dysfunction of lymphatic vessels is implicated in diseases such as cancer, lymphoedema, and inflammatory conditions.

Purpose of the Study:

  • To highlight the importance of lymphatic vascular biology.
  • To underscore the role of lymphatic vessels in health and disease.
  • To emphasize the potential of recent advancements in understanding and treating lymphatic-related diseases.

Main Methods:

  • Review of current literature on lymphatic vascular biology.
  • Analysis of the role of lymphatic vessels in fluid balance and immunity.
  • Examination of the pathogenesis of diseases linked to lymphatic dysfunction.

Main Results:

  • The lymphatic system is vital for fluid homeostasis and immune surveillance.
  • Lymphatic vascular abnormalities contribute to significant pathologies.
  • Emerging biological and technological developments offer new insights.

Conclusions:

  • Understanding lymphatic vascular biology is key to addressing numerous diseases.
  • Recent advancements are paving the way for improved therapeutic strategies.
  • Further research in this field holds significant promise for clinical applications.