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Related Concept Videos

Lymphoid Cells and Tissues01:18

Lymphoid Cells and Tissues

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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.
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...
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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 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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Tissues01:18

Tissues

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Cells with similar structure and function are grouped into tissues. A group of tissues with a specialized function is called an organ. There are four main types of tissue in vertebrates: epithelial, connective, muscle, and nervous.
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Tissues01:25

Tissues

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Tissues are a group of cells that share a common embryonic origin. Microscopic observation reveals that the cells in a tissue share morphological features and are arranged in an orderly pattern to perform specific functions. From an evolutionary perspective, tissues appear in more complex organisms. Although there are many types of cells in the human body, they are organized into four broad categories of tissues: epithelial, connective, muscle, and nervous. Each of these categories is...
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Plant Cells and Tissues02:01

Plant Cells and Tissues

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Plant tissues are collections of similar cells performing related functions. Different plant tissues will have their own specialized roles and can be combined with other tissues to form organs such as flowers, fruit, stem, and leaves. Two major types of plant tissue include meristematic and permanent tissue.
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Isolation of Group 2 Innate Lymphoid Cells from Mouse Nasal Mucosa to Detect the Expression of CD226
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Mucosa-associated lymphoid tissue lymphomas

C Thieblemont1, F Berger, B Coiffier

  • 1Centre Hospitalier Lyon-Sud, Pierre-Benite, France.

Current Opinion in Oncology
|September 1, 1995
PubMed
Summary
This summary is machine-generated.

Mucosa-associated lymphoid tissue (MALT) lymphomas are a type of non-Hodgkin's lymphoma often linked to chronic inflammation. Treatment varies by stage, with localized disease responding well to surgery or radiation, and emerging antibiotic therapies showing promise.

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Area of Science:

  • Oncology
  • Immunology
  • Pathology

Background:

  • Mucosa-associated lymphoid tissue (MALT) lymphomas represent a unique category of non-Hodgkin's lymphoma with distinct clinical and pathological features.
  • These lymphomas commonly affect the gastrointestinal tract but can occur in various extranodal sites, including the lung, breast, and thyroid.
  • MALT lymphomas are frequently associated with pre-existing autoimmune diseases or chronic inflammatory conditions, such as Helicobacter pylori-induced gastritis.

Purpose of the Study:

  • To describe the clinicopathologic characteristics of MALT lymphomas.
  • To outline the common sites of involvement and associated conditions.
  • To discuss the therapeutic strategies and potential future treatment modifications.

Main Methods:

  • Review of clinicopathologic data for MALT lymphoma cases.
  • Analysis of disease presentation, staging, and treatment outcomes.
  • Examination of the relationship between MALT lymphoma and chronic inflammatory disorders.

Main Results:

  • Gastrointestinal tract involvement is observed in approximately two-thirds of MALT lymphoma cases.
  • The lymphoma originates from the marginal zone and invades epithelial tissue, forming lymphoepithelial lesions.
  • Patients with localized gastrointestinal MALT lymphoma generally exhibit favorable prognoses and high survival rates.

Conclusions:

  • MALT lymphomas are characterized by their extranodal origin and association with chronic inflammation.
  • Localized MALT lymphomas have a good prognosis, while disseminated disease requires systemic treatment.
  • Antibiotic therapy targeting underlying inflammatory causes, particularly in gastric MALT lymphoma, presents a novel therapeutic avenue.