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Stem-like CD8 T Cell Reservoir Plays Critical Role in Protecting and Sustaining Anti-tumor T-Cells

Jul 6, 2021 10:10:00 AM / by Stacy Matthews Branch, DVM, PhD posted in T Cells, Tumors

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Yale scientists have investigated how a subset of specific T cells survive a microenvironment within a tumor throughout the progression of the cancer.

 Precursor stem-like CD8+ T cells help to sustain anti-tumor T cell responses and promote effective immunotherapy treatment response. Although tumor cell signals cause T cells to differentiate, making them ineffective against tumors, a population of the stem-like T cells is maintained.

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Immunotherapy for Breast Cancer on the Horizon

Sep 17, 2019 10:02:00 AM / by Stacy Matthews Branch, DVM, PhD posted in Cancer, Tumors, Immunotherapy (Immunology)

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A new treatment has been approved by the FDA to treat breast cancer that combines chemotherapy with immunotherapy.

The war against cancer is ongoing and consists of both winning and losing battles. There are several cancers that have been successfully treated with immunotherapy. However, one type of cancer has been a challenge for the application of immunotherapy is breast cancer. There are various subtypes of breast cancer, and each requires a different treatment approach due to the distinct biology associated with these cancer types and the specific mechanisms involved in breast tumor development.

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HemaCare Starting Material Aids Discovery of New Brain Tumor Treatment Strategy

Feb 19, 2019 10:02:00 AM / by Nancy Andon, MSc posted in T Cells, Tumors

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An independent publication cites using HemaCare primary T-cells to investigate a novel cancer therapy based on blocking immune suppression while simultaneously promoting T-cell activity. [1]

Newly approved T-cell therapies have been eliciting enthusiastic discussion across the medical field for their unparalleled success rate in treating aggressive blood cancers. This success has unfortunately not extended to the treatment of brain tumors, where upregulation of the “immune checkpoint” molecule PDL-1 interferes with normal immune response. Now a research group based at the University of Alabama’s Medical School may have found a way to outsmart brain cancer cells that evade the body’s immune system.

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Brain Cancer Vaccine Could Improve Prognosis

Jul 30, 2018 10:18:00 AM / by Stacy Matthews Branch, DVM, PhD posted in Cancer, Dendritic Cells, Tumors, Vaccine Research, Immunotherapy (Immunology)

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Immunotherapy for glioblastoma has been considered an option for patients and extend life of patients.

Glioblastoma multiforme is an aggressive cancer of the brain or spinal cord that originates from astrocytes. Although this type of cancer is not age specific, it is diagnosed more often in older patients. Glioblastoma is very difficult to treat, and current options include surgery, chemotherapy, radiotherapy, use of electrical fields (tumor treating fields), and targeted therapies to prevent tumor blood vessel formation. On average, people live for about 15 months after diagnosis despite receiving the standard treatments for glioblastoma.

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Prevent Recurring Tumors with Immunotherapy

May 14, 2018 10:13:00 AM / by Stacy Matthews Branch, DVM, PhD posted in Cancer, Dendritic Cells, Tumors, Immunotherapy (Immunology)

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Immunotherapy is becoming a promising treatment approach for cancer patients with recurring tumors, and more studies will help to further develop the treatment options.

Surgical resection is still the first-line treatment for solid tumors despite the rate of tumor recurrence with this approach. Surgery to remove tumors provokes wound healing processes that promote local immunosuppressive environments and metastasis. Surgical resection of tumors can also remove beneficial immune cells and factors that could promote targeting and killing of tumor cells. Radio- or chemotherapy as an adjunct to surgery has some limited effects on distant metastasis, but these treatments are associated with significant systemic adverse effects. 

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