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Tumor Immunotherapy01:27

Tumor Immunotherapy

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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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Cancer Therapies02:49

Cancer Therapies

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Cancer therapies are various modes of treatment, such as surgery, radiation therapy, and chemotherapy that are administered to cancer patients.
However, cancer treatments can pose several challenges, as therapies used to kill cancer cells are generally also toxic to normal cells. Moreover, cancer cells mutate rapidly and can develop resistance to chemical agents or radiation therapy. Besides, all types of cancer cells may not respond to the same therapy. Some cancer cells respond to one...
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Cancer Vaccines01:30

Cancer Vaccines

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Cancer treatment vaccines are a rapidly evolving field that offers a promising approach to immunotherapy. Unlike traditional vaccines that prevent diseases, cancer treatment vaccines are designed to treat existing cancers by stimulating the immune system to recognize and attack cancer cells.
Cancer vaccines come in two categories: preventive (prophylactic) and treatment (active). Preventive vaccines, such as the Human Papillomavirus (HPV) vaccine, protect against viruses that cause certain...
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Treatment Resistant Cancers02:56

Treatment Resistant Cancers

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Cancer is the second leading cause of death in the United States. A cancer cell is genetically unstable and hence can mutate faster. They can also modify their microenvironment and escape immune surveillance. The difficulties in treating cancer are further compounded by the emergence of rapid resistance to anticancer drugs. The most common ways to attain resistance in cancer cells include alteration in drug transport and metabolism, modification of drug target, elevated DNA damage response, or...
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Targeted Cancer Therapies02:57

Targeted Cancer Therapies

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The targeted cancer therapies, also known as “molecular targeted therapies,” take advantage of the molecular and genetic differences between the cancer cells and the normal cells. It needs a thorough understanding of the cancer cells to develop drugs that can target specific molecular aspects that drive the growth, progression, and spread of cancer cells without affecting the growth and survival of other normal cells in the body.
There are several types of targeted therapies against...
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Stem Cell Therapy for Tissue Regeneration01:21

Stem Cell Therapy for Tissue Regeneration

4.7K
Stem cell therapy is a method used in regenerative medicine to repair and restore function to damaged tissues and organs. Stem cells have the potential to proliferate and differentiate into various tissue types, making them ideal candidates for tissue regeneration. For example, hematopoietic stem cell transplants are commonly used in blood cancer treatment to replenish damaged bone marrow and restore healthy blood cells.
Types of Stem Cells used in Stem Cell Therapy
The two main cell...
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Video Experimental Relacionado

Updated: Feb 24, 2026

Cytotoxic Efficacy of Photodynamic Therapy in Osteosarcoma Cells In Vitro
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Cytotoxic Efficacy of Photodynamic Therapy in Osteosarcoma Cells In Vitro

Published on: March 18, 2014

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Avances en la inmunoterapia basada en células T para el osteosarcoma

Kun Zhang1, Zheng Wang2, Jiaqi He3

  • 1Department of Trauma Orthopedics, Shenzhen Longhua District People's Hospital, Shenzhen, China.

Frontiers in immunology
|February 23, 2026
PubMed
Resumen

La inmunoterapia contra el osteosarcoma muestra resultados prometedores pero enfrenta desafíos como la inmunosupresión y el agotamiento de las células T. Las estrategias futuras se centran en mejorar la función y el tráfico de las células T para obtener mejores resultados clínicos en este cáncer de hueso.

Palabras clave:
Células Tinmunidad adaptativainhibidores de puntos de control inmunitarioevasión inmunitariainmunoterapiainmunidad innataosteosarcoma

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Establishment of Cancer Stem Cell Cultures from Human Conventional Osteosarcoma

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Área de la Ciencia:

  • Oncología; Inmunología; Investigación del cáncer

Sus antecedentes:

  • El osteosarcoma es un cáncer de hueso primario en niños y adolescentes con mal pronóstico para la enfermedad metastásica. Los tratamientos actuales ofrecen un progreso limitado, especialmente para casos recurrentes o metastásicos. La eficacia de la inmunoterapia en el osteosarcoma se ve obstaculizada por un microambiente tumoral inmunosupresor y el agotamiento de las células T.

Objetivo del estudio:

  • Revisar los avances recientes en la inmunoterapia dirigida a células T para el osteosarcoma. Explorar el progreso mecanicista y traslacional en el campo. Proponer direcciones futuras para mejorar los resultados del tratamiento del osteosarcoma.

Principales métodos:

  • Revisión de la literatura reciente sobre inmunoterapias basadas en células T para el osteosarcoma. Análisis de datos preclínicos y clínicos para estrategias como células T γδ, inhibidores de puntos de control y células T CAR. Examen de los factores que limitan la eficacia terapéutica, incluida la presentación de antígenos, las poblaciones de células inmunitarias y el tráfico de células T.

Principales resultados:

  • Las estrategias basadas en células T (células T γδ, inhibidores de puntos de control, células T CAR) muestran promesa preclínica pero una limitada traslación clínica. La presentación de antígenos alterada, las células inmunitarias supresoras y el mal tráfico de las células T restringen la eficacia de la inmunoterapia. Comprender estas limitaciones es crucial para desarrollar inmunoterapias eficaces contra el osteosarcoma.

Conclusiones:

  • La inmunoterapia dirigida a células T tiene potencial para el tratamiento del osteosarcoma. Superar el microambiente tumoral inmunosupresor y mejorar la función de las células T son desafíos clave. La investigación futura debe centrarse en mejorar la presentación de antígenos, modular las poblaciones de células inmunitarias y optimizar el tráfico de células T para el éxito clínico.