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https://www.readbyqxmd.com/read/28538671/engineering-exosomes-for-cancer-therapy
#1
REVIEW
Katie E Gilligan, Róisín M Dwyer
There remains an urgent need for novel therapeutic strategies to treat metastatic cancer, which results in over 8 million deaths annually worldwide. Following secretion, exosomes are naturally taken up by cells, and capable of the stable transfer of drugs, therapeutic microRNAs and proteins. As knowledge of the biogenesis, release and uptake of exosomes continues to evolve, and thus also has interest in these extracellular vesicles as potential tumor-targeted vehicles for cancer therapy. The ability to engineer exosome content and migratory itinerary holds tremendous promise...
May 24, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28538170/yap-regulates-actin-dynamics-through-arhgap29-and-promotes-metastasis
#2
Yiting Qiao, Jianxiang Chen, Ying Bena Lim, Megan Louise Finch-Edmondson, Veerabrahma Pratap Seshachalam, Lei Qin, Tingting Jiang, Boon Chuan Low, Himanshu Singh, Chwee Teck Lim, Marius Sudol
Yes-associated protein (YAP) is regulated by mechanical cues via the interaction of the Hippo pathway with cytoskeleton. Previous studies showed that YAP plays a role in regulating the actomyosin network by suppressing Rho GTPase in medaka fish. Here, we identify Rho GTPase activating protein 29 (ARHGAP29) as a transcriptional target of YAP in a human gastric cancer cell line. YAP promotes the expression of ARHGAP29 to suppress the RhoA-LIMK-cofilin pathway, destabilizing F-actin. The overexpression of YAP causes cytoskeletal rearrangement by altering the dynamics of F-actin/G-actin turnover, thus promoting migration...
May 23, 2017: Cell Reports
https://www.readbyqxmd.com/read/28537914/epigenomic-study-identifies-a-novel-mesenchyme-homeobox2-gli1-transcription-axis-involved-in-cancer-drug-resistance-overall-survival-and-therapy-prognosis-in-lung-cancer-patients
#3
Leonel Armas-López, Patricia Piña-Sánchez, Oscar Arrieta, Enrique Guzman de Alba, Blanca Ortiz-Quintero, Patricio Santillán-Doherty, David C Christiani, Joaquín Zúñiga, Federico Ávila-Moreno
Several homeobox-related gene (HOX) transcription factors such as mesenchyme HOX-2 (MEOX2) have previously been associated with cancer drug resistance, malignant progression and/or clinical prognostic responses in lung cancer patients; however, the mechanisms involved in these responses have yet to be elucidated. Here, an epigenomic strategy was implemented to identify novel MEOX2 gene promoter transcription targets and propose a new molecular mechanism underlying lung cancer drug resistance and poor clinical prognosis...
May 9, 2017: Oncotarget
https://www.readbyqxmd.com/read/28537886/adam9-enhances-cdcp1-by-inhibiting-mir-1-through-egfr-signaling-activation-in-lung-cancer-metastasis
#4
Kuo-Liang Chiu, Yu-Sen Lin, Ting-Ting Kuo, Chia-Chien Lo, Yu-Kai Huang, Hsien-Fang Chang, Eric Y Chuang, Ching-Chan Lin, Wei-Chung Cheng, Yen-Nien Liu, Liang-Chuan Lai, Yuh-Pyng Sher
MicroRNAs (miRNAs), which are endogenous short noncoding RNAs, can regulate genes involved in important biological and pathological functions. Therefore, dysregulation of miRNAs plays a critical role in cancer progression. However, whether the aberrant expression of miRNAs is regulated by oncogenes remains unclear. We previously demonstrated that a disintegrin and metalloprotease domain 9 (ADAM9) promotes lung metastasis by enhancing the expression of a pro-migratory protein, CUB domain containing protein 1 (CDCP1)...
May 7, 2017: Oncotarget
https://www.readbyqxmd.com/read/28537881/interleukin-35-expression-is-associated-with-colon-cancer-progression
#5
Jian Zhang, Tao Mao, Shuyun Wang, Dongsheng Wang, Zhaojian Niu, Zhenqing Sun, Jianli Zhang
Colon cancer development is closely related to inflammation. Thus, we conducted the present investigation to study the effects of IL-35 (Interleukin 35), a newly identified anti-inflammatory factor, on colon cancer development. We first evaluated the IL-35 expression in 186 pairs of colon cancer samples and paired adjacent normal tissues by qPCR, ELISA (Enzyme-linked immunoassay) and tissue microarrays. Then the role of IL-35 on patient survival rates, colon cancer progression and their sensitivity to chemotherapy drugs were assessed...
May 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/28537879/increased-expression-of-calponin-2-is-a-positive-prognostic-factor-in-pancreatic-ductal-adenocarcinoma
#6
Zhaoyan Qiu, Yi Chu, Bing Xu, Qian Wang, Mingzuo Jiang, Xiaowei Li, Gang Wang, Pengfei Yu, Guoxiao Liu, Hua Wang, Huijie Kang, Jiayu Liu, Yu Zhang, Jian-Ping Jin, Kaichun Wu, Jie Liang
Calponin 2 plays an important role in regulating actin cytoskeleton, which is critical for cell division and migration. Previous studies have demonstrated that calponin 2 inhibits prostate cancer cell proliferation and metastasis. However, the role of calponin 2 in pancreatic tumor growth, metastasis and patient survival remains unclear. Here, we demonstrate that the level of calponin 2 is a positive prognostic factor for patients with pancreatic ductal adenocarcinoma (PDAC). Patients with high calponin 2 expression in the tumor presented less lymph node metastasis and longer survival...
May 9, 2017: Oncotarget
https://www.readbyqxmd.com/read/28535543/microrna-181a-5p-impedes-il-17-induced-nonsmall-cell-lung-cancer-proliferation-and-migration-through-targeting-vcam-1
#7
Yang Cao, Dan Zhao, Ping Li, Lanrong Wang, Bingli Qiao, Xiaoyan Qin, Lei Li, Yang Wang
AIM: The contribution of the inflammatory mediator interleukin-17 (IL-17) in nonsmall cell lung cancer (NSCLC) malignancy has been reported in the literature. MicroRNA-181a-5p (miR-181a-5p) acts as a tumor suppressor which can regulate target gene at the posttranscriptional level. Our study aimed to investigate the interaction between IL-17 and miR-181a-5p in NSCLC. METHODS: 35 patients with NSCLC and 24 COPD controls were selected and examined in our study. In vitro, H226 and H460 cell lines were exposed to different doses (20, 40, 60, and 80 ng/mL) of IL-17 to examine the effect of IL-17 on miR-181a-5p and vascular cell adhesion molecule 1 (VCAM-1) expression...
May 25, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28535539/mir-424-promotes-non-small-cell-lung-cancer-progression-and-metastasis-through-regulating-the-tumor-suppressor-gene-tnfaip1
#8
Ming Zhang, Chang'e Gao, Yi Yang, Gaofeng Li, Jian Dong, Yiqin Ai, Qianli Ma, Wenhui Li
BACKGROUND/AIMS: This study aimed to investigate the potential roles of miR-424 expression in non-small cell lung cancer (NSCLC) metastasis and growth and its underlying mechanism. METHODS: The expression of miR-424 in two NSCLC cell lines (A549 and H1975) was altered by transfection with miR-424 mimic and inhibitor. Effects of miR-424 overexpression and suppression on cells migration, invasion and colony formation were analyzed. Target genes for miR-424 were predicted using bioinformatics method and then verified using luciferase assay...
May 25, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28535511/capn4-enhances-osteopontin-expression-through-activation-of-the-wnt-%C3%AE-catenin-pathway-to-promote-epithelial-ovarian-carcinoma-metastasis
#9
Xiaoming Yang, Jing Sun, Dandan Xia, Xupei Can, Lei Liu, Jing Zhang, Huali Xu, Na Du, Wenxue Liu, Fangqian Shen, Zhenbo Zhang, Yunyan Sun, Xiaowei Xi
BACKGROUND AND AIM: Increasing evidence shows that the calpain regulatory subunit Capn4 can modulate the proliferation and metastasis of cancer cells, and plays an important role in the development of malignant tumors. However, there is no information on the clinical significance of Capn4 in epithelial ovarian carcinoma (EOC) or the molecular mechanisms by which Capn4 promotes the growth and metastasis of EOC. Therefore, the aim of this study was to clarify the role of Capn4 in EOC. METHODS: We evaluated Capn4 and osteopontin (OPN) expression in EOC cell lines and tissues from patients with ovarian cancer by western blotting and immunohistochemical analysis...
May 25, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28535506/long-noncoding-rna-afap1-as1-promoted-tumor-growth-and-invasion-in-cholangiocarcinoma
#10
Xu Lu, Chuang Zhou, Renfeng Li, Yilei Deng, Longshuan Zhao, Wenlong Zhai
BACKGROUND: Long non-coding RNAs (lncRNAs) have been shown to play important roles in a wide range of pathophysiological processes, including cancer progression. Our previous study has shown that AFAP1-AS1 was upregulated and acted as an oncogene in hepatocellular carcinoma. However, the expression and biological functions of lncRNA AFAP1-AS1 in intrahepatic cholangiocarcinoma (CCA) remains largely unknown. METHODS: The expression level of AFAP1-AS1 was measured in 56 pairs of human cholangiocarcinoma tumor tissues and corresponding adjacent normal bile duct tissues...
May 25, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28535417/ezrin-nf-kb-activation-regulates-epithelial-mesenchymal-transition-induced-by-egf-and-promotes-metastasis-of-colorectal-cancer
#11
Yingru Li, Zhaoyu Lin, Bin Chen, Shuang Chen, Zhipeng Jiang, Taicheng Zhou, Zehui Hou, Youyuan Wang
There is growing evidence that epithelial mesenchymal-transition (EMT) plays significant roles in terms of tumor metastasis. There are a lot of cytokines inducing EMT of tumor cells, EGF is one of the important cytokines.Ezrin is a connexin between the cytoskeleton and the cell membrane, which is closely related to the morphological movement and metastasis of tumor cells.EGF can activate Ezrin and affects cell motility. In recent years, many studies have shown that NF-kB acts as an important transcription factor, involving in the process of EMT...
May 20, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28535015/the-circadian-clock-gene-per2-plays-an-important-role-in-tumor-suppression-through-regulating-tumor-associated-genes-in-human-oral-squamous-cell-carcinoma
#12
Xiaoli Su, Dan Chen, Kai Yang, Qin Zhao, Dan Zhao, Xiaoqiang Lv, Yiran Ao
Low expression of the clock gene PER2 is closely related to carcinogenesis and the development of cancer; however, the mechanism of the low expression of PER2 that led to cell malignant transformation remains unclear. This study used RNA interference (RNAi) technology to silence PER2 in SCC15 human oral squamous cell carcinoma (OSCC) cells. Then it was found that the ability of cancer cell proliferation, migration, and invasion were markedly increased (P<0.05), and the ability of cancer cell apoptosis and the number of cells in G1/G0 phase were markedly reduced (P<0...
May 19, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28535014/mir-455-inhibits-cell-proliferation-and-migration-via-negative-regulation-of-egfr-in-human-gastric-cancer
#13
Tao Ning, Zhijuan Peng, Shuang Li, Yanjun Qu, Haiyang Zhang, Jingjing Duan, Xinyi Wang, Haiou Yang, Rui Liu, Ting Deng, Ming Bai, Yi Wang, Yiran Si, Le Zhang, Xia Wang, Shaohua Ge, Likun Zhou, Guoguang Ying, Yi Ba
Epidermal growth factor receptor (EGFR) plays an important role in various types of cancer. However, the therapeutic agents that target EGFR have not produced favorable results in gastric cancer. miRNAs are known to regulate gene expression at the post-transcriptional level. We wondered if miRNAs could be potential therapeutic agents for the targeted therapy against EGFR. In this study, we found an increase in the copies of EGFR mRNA and the upregulated expression of the EGFR protein in gastric cancer tissues compared with normal gastric tissues...
May 22, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28535005/rpn11-deubiquitinase-promotes-proliferation-and-migration-of-breast-cancer-cells
#14
Guoqing Luo, Ningdong Hu, Xu Xia, Jingjing Zhou, Changsheng Ye
The deubiquitinase enzyme RPN11 is involved in oncogenesis in various types of cancer. However, in breast cancer, the expression levels, prognostic relevance and biological function of RPN11 remains unclear. In the present study, RPN11 expression levels in breast cancer tissues and adjacent non‑tumor tissues were determined by reverse transcription‑quantitative polymerase chain reaction and immunohistochemical staining, and the association of RPN11 with clinicopathological features of breast cancer was evaluated...
May 16, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28535004/peroxiredoxin-5-overexpression-enhances-tumorigenicity-and-correlates-with-poor-prognosis-in-gastric-cancer
#15
Bokyung Kim, Yeon Soo Kim, Hye-Mi Ahn, Hyo Jin Lee, Min Kyu Jung, Hyun Yong Jeong, Dong Kyu Choi, Jun Hyeog Lee, Sang-Rae Lee, Jin Man Kim, Dong-Seok Lee
Gastric cancer is one of the leading causes of cancer-related deaths worldwide. Despite the advanced surgical resection techniques and anticancer drugs currently available to treat early stage gastric cancer, the prognosis of patients with gastric cancer remains poor. The epithelial to mesenchymal transition (EMT) is an important process for the initiation of tumorigenesis. Recent studies suggested that reactive oxygen species (ROS) can promote cell migration and invasion. Thus, an imbalance of redox homeostasis can result in cancer cells exhibiting EMT properties...
May 19, 2017: International Journal of Oncology
https://www.readbyqxmd.com/read/28535002/hsa-mir-485-5p-reverses-epithelial-to-mesenchymal-transition-and-promotes-cisplatin-induced-cell-death-by-targeting-pak1-in-oral-tongue-squamous-cell-carcinoma
#16
Xiu-Juan Lin, Chang-Li He, Ting Sun, Xue-Jing Duan, Yi Sun, Shi-Jiang Xiong
Oral squamous cell carcinoma (OSCC) is currently a highly prevalent disease worldwide. Cisplatin (CDDP) is widely used for the chemotherapy of OSCC. Yet, the molecular mechanisms responsible for cisplatin resistance have not been fully elucidated. In this study, we showed that overexpression of p21 (RAC1) activated kinase 1 (PAK1) induced epithelial to mesenchymal transition (EMT) and significantly promoted the invasion and migration of oral squamous cell carcinoma SCC25 cells. Emerging evidence indicates a strong link between resistance to therapy and the induction of EMT in cancer...
May 16, 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/28534999/mir-370-regulates-cell-proliferation-and-migration-by-targeting-egfr-in-gastric-cancer
#17
Tao Ning, Haiyang Zhang, Xinyi Wang, Shuang Li, Le Zhang, Ting Deng, Likun Zhou, Rui Liu, Xia Wang, Ming Bai, Shaohua Ge, Hongli Li, Dingzhi Huang, Guoguang Ying, Yi Ba
Epidermal growth factor receptor (EGFR) is known to be overexpressed in ~30% of gastric cancer (GC) cases, and may serve as an effective biomarker for predicting the clinical benefit of anti-EGFR therapy. However, the mechanism underlying the regulation of EGFR expression remains unknown. Evidence indicates that post-transcriptional regulation may exist in the process of EGFR expression. In the present study, we aimed to explore whether miR-370 is involved in this process, and how it impacts the biological behaviors of GC cells...
May 23, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28534996/ginsenoside-rd-regulates-the-akt-mtor-p70s6k-signaling-cascade-and-suppresses-angiogenesis-and-breast-tumor-growth
#18
Eryun Zhang, Hailian Shi, Li Yang, Xiaojun Wu, Zhengtao Wang
Blockade of angiogenesis is an important approach for cancer treatment and prevention. In the present study, we investigated the effect of ginsenoside Rd (Rd) on angiogenesis in vitro and in vivo. Our results demonstrated that Rd inhibited vascular endothelial growth factor (VEGF)-induced migration, tube formation and proliferation of primary cultured human umbilical vascular endothelial cells (HUVECs) dose‑dependently. Furthermore, Rd abrogated VEGF-induced sprouting of the vessels from aortic rings, and inhibited vascular formation in the Matrigel plug assay in vivo...
May 19, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28534991/long-non-coding-rna-xloc_006390-promotes-cervical-cancer-proliferation-and-metastasis-through-the-regulation-of-set-domain-containing-8
#19
Xiaotian Luan, Yankui Wang
The long non-coding RNA (lncRNA) XLOC_006390 is increased in various human cancer tissues and it plays important roles in cell growth and migration. However, the role of lncRNA XLOC_006390 in the progression and metastasis of cervical cancer has not been evaluated and remains unclear. In the present study, we hypothesized that lncRNA XLOC_006390 is also increased in cervical cancer, and upregulation of lncRNA XLOC_006390 contributes to cervical cancer metastasis. The expression of lncRNA XLOC_006390 in cervical cancer tissues and cell lines was analyzed using quantitative reverse-transcription-polymerase chain reaction (qRT-PCR)...
May 23, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28534990/tumor-suppressor-microrna-34a-inhibits-cell-migration-and-invasion-by-targeting-mmp-2-mmp-9-fndc3b-in-esophageal-squamous-cell-carcinoma
#20
Lan Yang, Xiaoyue Song, Jianbo Zhu, Mei Li, Yu Ji, Fei Wu, Yunzhao Chen, Xiaobin Cui, Jianming Hu, Lianghai Wang, Yuwen Cao, Yutao Wei, Wenjie Zhang, Feng Li
MicroRNAs (miRNAs) are a large family of small, non-coding RNAs that play a pivotal role in tumorigenesis. miR‑34a, which is a member of the miR-34 family, is a downstream target of p53. Increasing evidence shows that miR-34a dysregulation may contribute to tumor development and progression in numerous cancers, including esophageal squamous cell carcinoma (ESCC). However, the mechanism of miR-34a in the regulation of ESCC cells need to be further elucidated because of the complex regulative network of miRNAs...
May 19, 2017: International Journal of Oncology
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