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Human CAR NK Cells: A New Non-viral Method Allowing High Efficient Transfection and Strong Tumor Cell Killing
In conclusion, the method of NK cell transfection described in our present study is highly efficient, does not require expensive dedicated structures necessary for viral transduction and avoids possible risks associated with the use of viral vectors. Importantly, it may be applied to NK cells or NK-92 cell line, greatly improving their anti-tumor activity and providing a new NK cell-based platform for new protocols of adoptive immuno-therapy of cancer. Ethics Statement The Ethical Committee of IRCCS Bambino Gesù Pediatric Hospital approved the study (825/2014). Author Contributions TI designed and performed res...
Source: Frontiers in Immunology - April 29, 2019 Category: Allergy & Immunology Source Type: research

Endothelial Cell-Derived TGF- β Promotes Epithelial-Mesenchymal Transition via CD133 in HBx-Infected Hepatoma Cells
Conclusion: The study indicates that secretory factors like TGF-β from neighboring endothelial cells may enhance expression of CD133 and impart an aggressive EMT phenotype to HBx-infected hepatoma cells in HBV induced HCC. Introduction Hepatocellular Carcinoma (HCC) is one of the most common cancer worldwide, representing approximately 4% of all malignancies (1). It has been estimated that more than 50% of HCC cases in the world are associated with hepatitis B virus (HBV) (2). HBV is a partially double stranded DNA virus belonging to the Hepadnavirus family. The HBV genome is 3.2 kb in size and contains fou...
Source: Frontiers in Oncology - April 23, 2019 Category: Cancer & Oncology Source Type: research

Complement C5b-9 and Cancer: Mechanisms of Cell Damage, Cancer Counteractions, and Approaches for Intervention
In conclusion, osmotic burst of inflated complement-damaged cells may occur, but these bursts are most likely a consequence of metabolic collapse of the cell rather than the cause of cell death. The Complement Cell Death Mediator: A Concerted Action of Toxic Moieties Membrane pores caused by complement were first visualized by electron microscopy on red blood cell membranes as large ring structures (22). Similar lesions were viewed on E. coli cell walls (23). Over the years, ample information on the fine ultrastructure of the MAC that can activate cell death has been gathered (24) and has been recently further examined (...
Source: Frontiers in Immunology - April 9, 2019 Category: Allergy & Immunology Source Type: research

Label-free detection of protein tyrosine phosphatase 1B (PTP1B) using a rationally designed F örster resonance energy transfer (FRET) probe.
Label-free detection of protein tyrosine phosphatase 1B (PTP1B) using a rationally designed Förster resonance energy transfer (FRET) probe. Chembiochem. 2018 Sep 20;: Authors: Durgannavar T, Kwon SJ, Ghisaidoobe ABT, Rho K, Kim JH, Yoon SY, Kang HJ, Chung SJ Abstract A highly selective detection method of native protein tyrosine phosphatase 1B (PTP1B) is described using a target specific probe equipped with 1-naphthylamine (Ex = 330 nm, Em = 445 nm). Irradiation of a mixture of PTP1B and Probe 1 with ultraviolet light of 280 nm (correspon6ding to PTP1B excitation maximum) resulted in significant fluo...
Source: Chembiochem - September 20, 2018 Category: Biochemistry Authors: Durgannavar T, Kwon SJ, Ghisaidoobe ABT, Rho K, Kim JH, Yoon SY, Kang HJ, Chung SJ Tags: Chembiochem Source Type: research

Abstract A31: Targeting APC loss using synthetic lethality in Colorectal Cancer
Conclusions: We have identified seven genes as potential therapeutic targets and a number of FDA-approved compounds, which could potentially be new selective therapies for 80% of CRC patients. Currently we are validating these findings and investigating the mechanism of synthetic lethality with APC mutation. To further validate our findings we are also exploring whether these results extend to other CRC cell lines with different mutational backgrounds, this will help us access how many patients may benefit from our novel therapeutic targets.Acknowledgments: We would like to thank Bowel and Cancer Research and The Rosetree ...
Source: Molecular Cancer Therapeutics - October 2, 2017 Category: Cancer & Oncology Authors: Shailes, H., Bridge, G., Foxler, D., Sharp, T. V., Silver, A., Martin, S. A. Tags: Finding Synthetic Lethal Interactions through Functional Genomics: Poster Presentations - Proffered Abstracts Source Type: research

The microtubule-associated protein PRC1 promotes early recurrence of hepatocellular carcinoma in association with the Wnt/{beta}-catenin signalling pathway
Conclusions We identified PRC1 as a novel Wnt target that functions in a positive feedback loop that reinforces Wnt signalling to promote early HCC recurrence.
Source: Gut - August 8, 2016 Category: Gastroenterology Authors: Chen, J., Rajasekaran, M., Xia, H., Zhang, X., Kong, S. N., Sekar, K., Seshachalam, V. P., Deivasigamani, A., Goh, B. K. P., Ooi, L. L., Hong, W., Hui, K. M. Tags: Open access, Colon cancer, Hepatic cancer Hepatology Source Type: research

Overexpression of Transmembrane Protein BST2 is Associated with Poor Survival of Patients with Esophageal, Gastric, or Colorectal Cancer.
CONCLUSIONS: The results suggest that BST-2 is involved in tumor progression and serves as an independent prognostic classifier for patients with GC. Because BST-2 is expressed on the cell membrane, BST-2 could be a therapeutic target for GC, CRC, and ESCC. PMID: 26832883 [PubMed - as supplied by publisher]
Source: Ann Oncol - February 1, 2016 Category: Cancer & Oncology Authors: Mukai S, Oue N, Oshima T, Mukai R, Tatsumoto Y, Sakamoto N, Sentani K, Tanabe K, Egi H, Hinoi T, Ohdan H, Yasui W Tags: Ann Surg Oncol Source Type: research

Overexpression of Transmembrane Protein BST2 is Associated with Poor Survival of Patients with Esophageal, Gastric, or Colorectal Cancer
Conclusions The results suggest that BST-2 is involved in tumor progression and serves as an independent prognostic classifier for patients with GC. Because BST-2 is expressed on the cell membrane, BST-2 could be a therapeutic target for GC, CRC, and ESCC.
Source: Annals of Surgical Oncology - February 1, 2016 Category: Cancer & Oncology Source Type: research

Effect of fibulin-5 on adhesion, migration and invasion of hepatocellular carcinoma cells via an integrin-dependent mechanism.
CONCLUSION: These results suggest that lower FBLN-5 expression is an important indicator of poor survival and that FBLN-5 inhibits HCC motility via an integrin-dependent mechanism. RGD-dependent suppression of MMP-7 by FBLN-5 might contribute to the development of new therapeutic strategies for HCC. PMID: 26494967 [PubMed - in process]
Source: World Journal of Gastroenterology : WJG - October 21, 2015 Category: Gastroenterology Authors: Tang JC, Liu JH, Liu XL, Liang X, Cai XJ Tags: World J Gastroenterol Source Type: research