MIDGE Technology for the Production of a Fourfold Gene-Modified, Allogenic Cell-Based Vaccine for Cancer Therapy

Gene modification of eukaryotic cells by electroporation is a widely used method to express selected genes in a defined cell population for various purposes, like gene correction or production of therapeutics. Here, we describe the generation of a cell-based tumor vaccine via fourfold transient gene modification of a human renal cell carcinoma (RCC) cell line for high expression of CD80, CD154, GM-CSF, and IL-7 by use of MIDGE® vectors. The two co-stimulatory molecules CD80 and CD154 are expressed at the cell surface, whereas the two cytokines GM-CSF and IL-7 are secreted yielding cells with enhanced immunological properties. These fourfold gene-modified cells have been used as a cell-based tumor vaccine for the treatment of RCC.
Source: Springer protocols feed by Cancer Research - Category: Cancer & Oncology Source Type: news

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Markus Hartl* and Rainer Schneider Center of Molecular Biosciences (CMBI), Institute of Biochemistry, University of Innsbruck, Innsbruck, Austria The neuronal proteins GAP43 (neuromodulin), MARCKS, and BASP1 are highly expressed in the growth cones of nerve cells where they are involved in signal transmission and cytoskeleton organization. Although their primary structures are unrelated, these signaling proteins share several structural properties like fatty acid modification, and the presence of cationic effector domains. GAP43, MARCKS, and BASP1 bind to cell membrane phospholipids, a process reversibly regulate...
Source: Frontiers in Oncology - Category: Cancer & Oncology Source Type: research
In this study, T cells deficient in TRAF6 display enhanced T cell activation, CD28-indpendent stimulation and resistance to Treg cell-mediated suppression (176). Although TLR signaling can promote T cell resistance to Treg cells, the precise molecular mechanism remains yet to be elucidated. It is worth noting that TLR stimulation of T cells increases cytokine production (173, 177), thus future studies should delineate the effect of TLR-MyD88 signaling vs. subsequently induced cytokines in generating resistance to Treg cells. Lastly, it is also crucial to evaluate the effect of TLR signaling on regulatory T cells which also...
Source: Frontiers in Oncology - Category: Cancer & Oncology Source Type: research
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Source: Frontiers in Immunology - Category: Allergy & Immunology Source Type: research
In this study, we searched for HIF-1α-derived peptides that are able to induce RCC-reactive cytotoxic T lymphocytes (CTLs) from HLA-A24(+) RCC patients. Among five peptides derived from HIF-1α, which were prepared based on the binding motif to the HLA-A24 allele, a HIF-1α278-287 peptide induced peptide-specific CTLs from peripheral blood mononuclear cells of HLA-A24(+) RCC patients most effectively. In immunoblot assays, the expression of HIF-1α was lowly detected in whole and nuclear lysates of RCC cell lines even under normoxia (20% O2), and their expression in whole lysates was increased under hy...
Source: International Immunopharmacology - Category: Allergy & Immunology Authors: Tags: Int Immunopharmacol Source Type: research
Recent advances in immuno‐oncology have the potential to transform the practice of medical oncology. Antibodies directed against negative regulators of T‐cell function (checkpoint inhibitors), engineered cell therapies and innate immune stimulators, such as oncolytic viruses, are effective in a wide range of cancers. Immune‘based therapies have had a clinically meaningful impact on the treatment of advanced melanoma, and the lessons regarding use of single agents and combinations in melanoma may be applicable to the treatment of urological cancers. Checkpoint inhibitors, cytokine therapy and therapeutic vaccines ...
Source: BJU International - Category: Urology & Nephrology Authors: Tags: Review Source Type: research
Recent advances in immuno‐oncology have the potential to transform the practice of medical oncology. Antibodies directed against negative regulators of T‐cell function (checkpoint inhibitors), engineered cell therapies and innate immune stimulators, such as oncolytic viruses, are effective in a wide range of cancers. Immune‘based therapies have had a clinically meaningful impact on the treatment of advanced melanoma, and the lessons regarding use of single agents and combinations in melanoma may be applicable to the treatment of urological cancers. Checkpoint inhibitors, cytokine therapy and therapeutic vaccines ...
Source: BJU International - Category: Urology & Nephrology Authors: Tags: Review Source Type: research
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Source: BJU International - Category: Urology & Nephrology Authors: Tags: Review Source Type: research
Publication date: Available online 13 October 2015 Source:The Veterinary Journal Author(s): Daniel Regan, Amanda Guth, Jonathan Coy, Steven Dow Excitement in the field of tumor immunotherapy is being driven by several remarkable breakthroughs in recent years. This review will cover recent advances in cancer immunotherapy, including the use of T cell checkpoint inhibitors, engineered T cells, cancer vaccines, and anti-B cell and T cell antibodies. Inhibition of T cell checkpoint molecules such as PD-1 and CTLA-4 using monoclonal antibodies has achieved notable success against advanced tumors in humans, including melan...
Source: The Veterinary Journal - Category: Veterinary Research Source Type: research
for Advanced-stage Kidney Cancer Mayer N. Fishman, MD, PhD For the patient with advanced-stage kidney cancer, deciding on a course of treatment presents diverse choices. The physician must weigh how quickly the cancer is spreading, the pattern of that spread, and relative risks from other medical conditions against the patient’s individual treatment goals and medical needs. In many cases of patients with advanced disease, there are therapies that can realistically be used to meet the goals of longer survival, longer time to disease progression, and tumor shrinkage. While choosing a kidney cancer treatment can be a...
Source: Kidney Cancer Association - Category: Urology & Nephrology Source Type: news
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