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Spots Global Cancer Trial Database for Effect of Anesthesia on Expression of Programmed Death-1 and Programmed Death-1 Ligand in Breast Cancer

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Trial Identification

Brief Title: Effect of Anesthesia on Expression of Programmed Death-1 and Programmed Death-1 Ligand in Breast Cancer

Official Title: Effect of Anesthesia and Surgical Stress on the Expression of Programmed Death-1 and Programmed Death-1 Ligand on T Lymphocyte After Breast Cancer Surgeries

Study ID: NCT04657237

Study Description

Brief Summary: Surgery is first-line treatment for solid tumors. However, surgical trauma-induced physiologic stress has been demonstrated to facilitate metastasis and recurrence in different types of cancer. It has been reported that the PD-1/PD-L1 pathway could be activated by surgical stress. Hence, we instigate the effect of anesthetic technique on expression of PD1 and PD1 ligand.

Detailed Description: The cellular immune response plays a central part in postoperative clearance of tumor cells. T lymphocytes and natural killer (NK) cells are two predominant cytotoxic effector cells that are the major components of antitumor immunity. In mouse models, proliferation of T lymphocytes in response to surgical trauma is defective . Programmed death-1 (PD-1) belongs to the CD28 receptor superfamily. It is an inhibitory receptor, and its expression is upregulated on activated leukocytes, resulting in an inhibited immune response. PD-1 interacts with two ligands: programmed death ligand-1 (PD-L1, also referred to as B7-H1) and programmed death ligand-2 (PD-L2, also known as B7-DC). PD-L2 is expressed mainly on activated dendritic cells (DCs) and macrophages, whereas PD-L1 is distributed widely. In addition to immune cells, some subsets of tumor cells also express PD-L1 to escape from immunosurveillance. It has been reported that the PD-1/PD-L1 pathway could be activated by surgical stress. Hence, we instigate the effect of anesthetic technique on expression of PD1 and PD1 ligand.

Eligibility

Minimum Age: 18 Years

Eligible Ages: ADULT, OLDER_ADULT

Sex: FEMALE

Healthy Volunteers: No

Locations

South Egypt Cancer Institute, Assiut, , Egypt

Contact Details

Useful links and downloads for this trial

Clinicaltrials.gov

Google Search Results

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