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Spots Global Cancer Trial Database for Cancer Stem Cells Vaccine Therapy in Treating Hepatocellular Cancer Patients

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Trial Identification

Brief Title: Cancer Stem Cells Vaccine Therapy in Treating Hepatocellular Cancer Patients

Official Title: Study of Cancer Stem Cell Vcccinie That as a Specific Antigen in Metastatic Adenocarcinoma of the Liver

Study ID: NCT02089919

Study Description

Brief Summary: Most studies of cancer stem cells (CSC) involve the inoculation of cells from human tumors into immunosuppressed mice, preventing an assessment on the immunologic interactions and effects of CSCs. In this study, the investigators examined the vaccination effects produced by CSC-enriched populations from histologically distinct murine tumors after their inoculation into different syngeneic immunocompetent hosts. Enriched CSCs were immunogenic and more effective as an antigen source than unselected tumor cells in inducing protective antitumor immunity.Immune sera from CSC-vaccinated hosts contained high levels of IgG which bound to CSCs, resulting in CSC lysis in the presence of complement.CTLs generated from peripheral blood mononuclear cells or splenocytes harvested from CSC-vaccinated hosts were capable of killing CSCs in vitro. Mechanistic investigations established that CSC-primed antibodies and T cells were capable of selective targeting CSCs and conferring anti-tumor immunity.

Detailed Description: To assess the feasibility of generating CSC-loaded DC vaccines for clinical use, the investigators will harvest peripheral blood and tumor specimen from patients with hepatocellular cancer. The investigators will purify T, B cells and generate DCs from the PBMCs of the hepatocellular cancer patient.On the other hand, investigators will isolate ALDHhigh and ALDHlow tumor cells from the tumor specimen of the hepatocellular cancer patient using a similar protocol as investigators reported . Aim 1: To demonstrate, in vitro, the relative cellular anti-hepatocellular cancer CSC immunity induced by hepatocellular cancer CSC-DC primed cytotoxic T cells. Aim 2: To determine, in vitro, specific binding and lysis of hepatocellular cancer CSCs by antibodies produced by purified B cells from PBMCs stimulated with hepatocellular cancer CSC-DC.

Keywords

Eligibility

Minimum Age: 18 Years

Eligible Ages: ADULT, OLDER_ADULT

Sex: ALL

Healthy Volunteers: No

Locations

Biological treatment center in Fuda cancer hospital, Guangzhou, Guangdong, China

Contact Details

Useful links and downloads for this trial

Clinicaltrials.gov

Google Search Results

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