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Inhibition of chemotherapy-related breast tumor EMT by application of redox-sensitive siRNA delivery system CSO-ss-SA/siRNA along with doxorubicin treatment.
Abstract Metastasis is one of the main reasons causing death in cancer patients. It was reported that chemotherapy might induce metastasis. In order to uncover the mechanism of chemotherapy-induced metastasis and find solutions to inhibit treatment-induced metastasis, the relationship between epithelial-mesenchymal transition (EMT) and doxorubicin (DOX) treatment was investigated and a redox-sensitive small interfering RNA (siRNA) delivery system was designed. DOX-related reactive oxygen species (ROS) were found to be responsible for the invasiveness of tumor cells in vitro, causing enhanced EMT and cytoskeleton r...
Source: J Zhejiang Univ Sci ... - February 29, 2020 Category: Science Authors: Liu X, Zhou XQ, Shang XW, Wang L, Li Y, Yuan H, Hu FQ Tags: J Zhejiang Univ Sci B Source Type: research

Inhibition of chemotherapy-related breast tumor EMT by application of redox-sensitive siRNA delivery system CSO-ss-SA/siRNA along with doxorubicin treatment
AbstractMetastasis is one of the main reasons causing death in cancer patients. It was reported that chemotherapy might induce metastasis. In order to uncover the mechanism of chemotherapy-induced metastasis and find solutions to inhibit treatment-induced metastasis, the relationship between epithelial-mesenchymal transition (EMT) and doxorubicin (DOX) treatment was investigated and a redox-sensitive small interfering RNA (siRNA) delivery system was designed. DOX-related reactive oxygen species (ROS) were found to be responsible for the invasiveness of tumor cells in vitro, causing enhanced EMT and cytoskeleton reconstruct...
Source: Journal of Zhejiang University. Science. B. - February 29, 2020 Category: Universities & Medical Training Source Type: research

Abstract 3903: A sub-set of DCLK1+ve colon cancer stem cells (CSCs) survive curcumin induced autophagy, while co-treatment with curcumin +DCLK1-siRNA eliminates CSCs: Role of long and short isofoms of DCLK1
Conclusion. Our studies strongly suggest that, 1) DCLK1 represents a functional protein for colon cancers, 2) combination of curcumin+DCLK1-siRNA may target and eradicate colon cancer stem cells., and 3) identifying small molecules that inhibit expression of S-isoform may allow to specifically target cancer stem cells, while sparing normal stem cells for cancer treatment purposes. This work was supported by NIH Granst to PS (R01CA09795909 and RO1CA0975909-S1). Citation Format: Shubhashish Sarkar, Malaney O'Connell, Carla, Kantara, Pomila Singh. A sub-set of DCLK1+ve colon cancer stem cells (CSCs) survive curcumin induced a...
Source: Cancer Research - September 30, 2014 Category: Cancer & Oncology Authors: Sarkar, S., O'Connell, M., Kantara, C., Singh, P. Tags: Tumor Biology Source Type: research

Auranofin, an Anti-rheumatic Gold Drug, Aggravates the Radiation-Induced Acute Intestinal Injury in Mice
Conclusion In this study, we found that a non-toxic dose of auranofin significantly aggravated the severity of the radiation-induced intestinal injury. This suggests that auranofin treatment can be an independent factor that influences the risk of intestinal complications after pelvic or abdominal radiotherapy. Ethics Statement All the protocols used in this study were approved by the Institutional Animal Care and Use Committee of the Korean Institute of Radiological and Medical Sciences (IACUC permit number: KIRAMS217-0007). Author Contributions H-JL, JS, and Y-BL designed the experiments. EL and JK conducted the exp...
Source: Frontiers in Pharmacology - April 23, 2019 Category: Drugs & Pharmacology Source Type: research

High-Content siRNA Screen of the Kinome Identifies Kinases Involved in Git2-Induced Mesenchymal-Epithelial Transition.
Abstract Epithelial-mesenchymal transition (EMT) and its reverse process mesenchymal-epithelial transition (MET) programs are involced in the metastatic process. More and more evidence confirms that EMT is vital for the initiation and dissemination of cancer cells whereas MET is critical for successful metastatic colonization of a secondary organ. The regulating mechanism of EMT mediated cancer progression and metastasis has been deeply investigated. However, what processes are dependent on MET in metastatic cascades remains unclear. Here, we created a cell based high-content siRNA screen using the breast cancer c...
Source: Molekuliarnaia Biologiia - July 1, 2017 Category: Molecular Biology Authors: Cao MG, Xu J, Yang QF, Guo ZP, Zhang KB, Li XB, Wu SQ, Zhou W Tags: Mol Biol (Mosk) Source Type: research

Effects of miR-202-5p silencing PIK3CA gene expression on proliferation, invasion, and epithelial-mesenchymal transition of cervical cancer SiHa cells through inhibiting PI3K/Akt/mTOR signaling pathway activation
In conclusion, the overexpression of miR-202-5p can suppress PIK3CA gene expression and the activation of PI3K/Akt/mTOR signaling pathway to suppress the proliferation, invasion, and EMT of cervical cancer.PMID:34244973 | DOI:10.1007/s11010-021-04211-4
Source: Molecular and Cellular Biochemistry - July 10, 2021 Category: Biochemistry Authors: Yan Zheng Lei Xie Shuwen Xu Weidong Yan Hongzhen Zhang Yali Meng Jingqiao Liu Xujing Wei Source Type: research

Ultrasound-Mediated PLGA-PEI Nanobubbles Carrying STAT6 SiRNA Enhances NSCLC Treatment via Repolarizing Tumor-associated Macrophages from M2 to M1 Phenotypes
CONCLUSION: UMND enhanced PLGA-PEI NBs-STAT6 siRNA to repolarize TAMs from the M2 to the M1 phenotype, thus treating NSCLC. These findings provide a promising therapeutic approach for enhancing NSCLC immunotherapy.PMID:37491853 | DOI:10.2174/1567201820666230724151545
Source: Current Drug Delivery - July 26, 2023 Category: Drugs & Pharmacology Authors: Hong Shu Wenhao Lv Zhi-Jian Ren Hui Li Tiantian Dong Yao Zhang Fang Nie Source Type: research

Regulation of Chromatin Assembly and Cell Transformation by Formaldehyde Exposure in Human Cells
Conclusions: We propose that the inhibition of chromatin assembly represents a novel mechanism of cell transformation induced by the environmental and occupational chemical carcinogen FA. https://doi.org/10.1289/EHP1275 Received: 25 October 2016 Revised: 19 May 2017 Accepted: 23 May 2017 Published: 21 September 2017 Address correspondence to C. Jin, Dept. of Environmental Medicine, New York University School of Medicine, 57 Old Forge Rd., Tuxedo Park, NY 10987 USA. Telephone: (845) 731-3602. Email: Chunyuan.jin@nyumc.org *Current affiliation: Medical School of Nanjing University, Nanjing, China. †Current affiliatio...
Source: EHP Research - September 21, 2017 Category: Environmental Health Authors: Daniil Lyalko Tags: Research Source Type: research

GP73 promotes invasion and metastasis of bladder cancer by regulating the epithelial-mesenchymal transition through the TGF- β1/Smad2 signalling pathway.
This study investigated the effects of Golgi membrane protein 73 (GP73) on the epithelial-mesenchymal transition (EMT) and on bladder cancer cell invasion and metastasis through the TGF-β1/Smad2 signalling pathway. Paired bladder cancer and adjacent tissue samples (102) and normal bladder tissue samples (106) were obtained. Bladder cancer cell lines (T24, 5637, RT4, 253J and J82) were selected and assigned to blank, negative control (NC), TGF-β, thrombospondin-1 (TSP-1), TGF-β1+ TSP-1, GP73-siRNA-1, GP73-siRNA-2, GP73-siRNA-1+ TSP-1, GP73-siRNA-1+ pcDNA-GP73, WT1-siRNA and WT1-siRNA + GP73-siRNA-1 groups. Expressions of...
Source: J Cell Mol Med - January 19, 2018 Category: Molecular Biology Authors: Yang HJ, Liu GL, Liu B, Liu T Tags: J Cell Mol Med Source Type: research

Small extracellular vesicle-mediated < em > ITGB6 < /em > siRNA delivery downregulates the αVβ6 integrin and inhibits adhesion and migration of recipient prostate cancer cells
Cancer Biol Ther. 2022 Dec 31;23(1):173-185. doi: 10.1080/15384047.2022.2030622.ABSTRACTThe αVβ6 integrin, an epithelial-specific cell surface receptor absent in normal prostate and expressed during prostate cancer (PrCa) progression, is a therapeutic target in many cancers. Here, we report that transcript levels of ITGB6 (encoding the β6 integrin subunit) are significantly increased in metastatic castrate-resistant androgen receptor-negative prostate tumors compared to androgen receptor-positive prostate tumors. In addition, the αVβ6 integrin protein levels are significantly elevated in androgen receptor-negative PrC...
Source: Cancer Biology and Therapy - February 21, 2022 Category: Cancer & Oncology Authors: Shiv Ram Krishn Vaughn Garcia Nicole M Naranjo Fabio Quaglia Christopher D Shields Maisha A Harris Andrew V Kossenkov Qin Liu Eva Corey Dario C Altieri Lucia R Languino Source Type: research

siRNA-induced CD44 knockdown suppresses the proliferation and invasion of colorectal cancer stem cells through inhibiting epithelial-mesenchymal transition
J Cell Mol Med. 2022 Mar 1. doi: 10.1111/jcmm.17221. Online ahead of print.ABSTRACTCD44 has shown prognostic values and promising therapeutic potential in multiple human cancers; however, the effects of CD44 silencing on biological behaviors of cancer stem cells (CSCs) have not been fully understood in colorectal cancer. To examine the contribution of siRNA-induced knockdown of CD44 to the biological features of colorectal CSCs, colorectal CSCs HCT116-CSCs were generated, and CD44 was knocked down in HCT116-CSCs using siRNA. The proliferation, migration and invasion of HCT116-CSCs were measured, and apoptosis and cell-cycl...
Source: J Cell Mol Med - March 1, 2022 Category: Molecular Biology Authors: Weiyan Zou Yi Zhang Guangfu Bai Jialu Zhuang Lin Wei Zishu Wang Meiqun Sun Junbin Wang Source Type: research