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Tumor Immunotherapy

Tumor Immunotherapy

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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Updated: Jun 26, 2026

Isolation and Characterization of a Head and Neck Squamous Cell Carcinoma Subpopulation Having Stem Cell Characteristics

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Published on: May 11, 2016

CD44 keeps tumor killers polarized.

Thorsten R Mempel¹, Francesco Marangoni

¹Center for Immunology and Inflammatory Diseases, Division of Rheumatology, Allergy, and Immunology, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA 02129, USA. tmempel@mgh.harvard.edu

|December 23, 2008

Summary

This summary is machine-generated.

CD44 is crucial for stabilizing cell polarity in migrating cytotoxic T lymphocytes. It anchors cytoskeletal proteins to the cell membrane at uropods, aiding immune cell movement.

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Area of Science:

Immunology
Cell Biology
Molecular Biology

Background:

Cell migration is essential for immune responses.
Cytotoxic T lymphocytes (CTLs) require directed migration to eliminate infected or cancerous cells.
Maintaining cell polarity is vital for directional cell movement.

Purpose of the Study:

To investigate the role of CD44 in the migration of cytotoxic T lymphocytes.
To understand the molecular mechanisms by which CD44 influences cell polarity during migration.

Main Methods:

Studied the function of CD44 in cytotoxic T lymphocyte migration.
Investigated the interaction of CD44 with cytoskeletal proteins.
Analyzed cell polarity and membrane dynamics in migrating CTLs.

Main Results:

CD44 plays a critical role in stabilizing cell polarity in migrating CTLs.
CD44 anchors cytoskeletal proteins to the cell membrane.
This anchoring occurs at the uropod, a structure involved in cell adhesion and migration.

Conclusions:

CD44 is a key regulator of cytotoxic T lymphocyte migration by maintaining cell polarity.
The interaction of CD44 with the cytoskeleton is essential for directed immune cell movement.