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Carcinoma-Associated Fibroblasts

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https://www.readbyqxmd.com/read/28625953/the-relationship-between-the-expressions-of-tumor-associated-fibroblasts-cav-1-and-mct4-and-the-prognosis-of-papillary-carcinoma-of-breast
#1
Yuanyuan Zhai, Lijun Chai, Jianzhong Chen
The aim of this study was to evaluate the expression levels of Cav-1 and MCT4 in the tumor stroma CAFs. Immunohistochemical method was used to detect the expression of Cav-1 and MCT4 in 86 cases of IMPC, with 105 cases of non-specific invasive ductal carcinoma (IDC-NOS) as control. Their differential expression in different histological types were compared and relationship between the expression of Cav-1 and IMPC in the MCT4 and the main pathological features such as age, tumor size and histological grades were analyzed...
January 2017: Pakistan Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28623900/characterization-of-microrna-200-pathway-in-ovarian-cancer-and-serous-intraepithelial-carcinoma-of-fallopian-tube
#2
Junzheng Yang, Yilan Zhou, Shu-Kay Ng, Kuan-Chun Huang, Xiaoyan Ni, Pui-Wah Choi, Kathleen Hasselblatt, Michael G Muto, William R Welch, Ross S Berkowitz, Shu-Wing Ng
BACKGROUND: Ovarian cancer is the leading cause of death among gynecologic diseases in Western countries. We have previously identified a miR-200-E-cadherin axis that plays an important role in ovarian inclusion cyst formation and tumor invasion. The purpose of this study was to determine if the miR-200 pathway is involved in the early stages of ovarian cancer pathogenesis by studying the expression levels of the pathway components in a panel of clinical ovarian tissues, and fallopian tube tissues harboring serous tubal intraepithelial carcinomas (STICs), a suggested precursor lesion for high-grade serous tumors...
June 17, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28619711/igfbp7-deletion-promotes-hepatocellular-carcinoma
#3
Maaged Akiel, Chunqing Guo, Xia Li, Devaraja Rajasekaran, Rachel G Mendoza, Chadia L Robertson, Nidhi Jariwala, Fang Yuan, Mark A Subler, Jolene Windle, Dawn K Garcia, Zhao Lai, Hung-I Harry Chen, Yidong Chen, Shah Giashuddin, Paul B Fisher, Xiang-Yang Wang, Devanand Sarkar
Activation of IGF signaling is a major oncogenic event in diverse cancers, including hepatocellular carcinoma (HCC). In this setting, the insulin-like growth factor binding protein IGFBP7 inhibits IGF signaling by binding the IGF-1 receptor (IGF-1R), functioning as a candidate tumor suppressor. IGFBP7 abrogates tumors by inhibiting angiogenesis and inducing cancer-specific senescence and apoptosis. Here we report that Igfbp7-deficient mice exhibit constitutively active IGF signaling, presenting with pro-inflammatory and immunosuppressive microenvironments and spontaneous liver and lung tumors occurring with increased incidence in carcinogen-treated subjects...
June 15, 2017: Cancer Research
https://www.readbyqxmd.com/read/28618942/prognostic-role-of-fibroblast-growth-factor-receptor-2-in-human-solid-tumors-a-systematic-review-and-meta-analysis
#4
Gang Liu, Disheng Xiong, Rui Xiao, Zhengjie Huang
In the past decades, the oncogenic role of fibroblast growth factor receptor 2 has been demonstrated in a number of cancer types. However, studies have reported contradictory findings concerning the correlation between fibroblast growth factor receptor 2 expression and prognosis in solid tumors. To address this discrepancy, we performed a meta-analysis with 18 published studies (2975 patients) retrieved from PubMed, EMBASE, and Web of science. Data were extracted and computed into odds ratios. The results showed that fibroblast growth factor receptor 2 overexpression was significantly associated with decreased 3-year overall survival (odds ratio = 1...
June 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28602756/antrodia-cinnamomea-sensitizes-radio-chemo-therapy-of-cancer-stem-like-cells-by-modulating-microrna-expression
#5
Yu-Kai Su, Ping-Hsiao Shih, Wei-Hwa Lee, Oluwaseun Adebayo Bamodu, Alexander T H Wu, Chun-Chih Huang, Yew-Min Tzeng, Michael Hsiao, Chi-Tai Yeh, Chien-Min Lin
ETHNOPHARMACOLOGICAL RELEVANCE: The discovery of many tissue-specific cancer stem cells (CSCs) continues to attract scientific attention. These CSCs are considered to be associated with chemo- and radio-resistance, and consequently, failure of conventional anticancer therapies. The recent demonstration of several microRNAs as enhancers of tumorigenicity via modulation of epithelial-mesenchymal transition and cancer stemness, makes them putative novel therapeutic target in oncology. Antrodia cinnamomea is a Chinese traditional medicine with several biological functions including anti-inflammation, antioxidant, and cancer prevention...
June 8, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28596490/a-genetic-polymorphism-repurposes-the-g-protein-coupled-and-membrane-associated-estrogen-receptor-gper-to-a-transcription-factor-like-molecule-promoting-paracrine-signaling-between-stroma-and-breast-carcinoma-cells
#6
Marco Pupo, Alexandre Bodmer, Melissa Berto, Marcello Maggiolini, Pierre-Yves Dietrich, Didier Picard
GPER is a membrane-associated estrogen receptor of the family of G-protein coupled receptors. For breast cancer, the contribution of GPER to promoting the proliferation and migration of both carcinoma cells and cancer-associated fibroblasts (CAFs) in response to estrogen and other agonists has extensively been investigated. Intriguingly, GPER was previously found to be localized to the nucleus in one isolate of breast CAFs. Moreover, this nuclear GPER was shown to bind regulatory sequences of cancer-relevant target genes and to induce their expression...
May 24, 2017: Oncotarget
https://www.readbyqxmd.com/read/28583379/prognostic-role-of-the-fgfr4-388arg-variant-in-lung-squamous-cell-carcinoma-patients-with-lymph-node-involvement
#7
Álvaro Quintanal-Villalonga, Andrés Carranza-Carranza, Ricardo Meléndez, Irene Ferrer, Sonia Molina-Pinelo, Luis Paz-Ares
BACKGROUND: The identification of prognostic biomarkers for lung squamous-cell carcinoma (SCC) pathology is crucial because of its poor prognosis. A variant of the FGFR4 (fibroblast growth factor receptor 4) gene, FGFR4-388Arg, has been associated with prognosis and is linked to oncogenesis in vitro in several types of cancer. We analyzed the association of this variant with prognosis and downstream signaling alteration in lung SCC patients. METHODS: The presence of the FGFR4-388Arg variant was determined in 114 formalin-fixed, paraffin-embedded lung SCC tissue samples by DNA genotyping and was correlated with clinicopathologic data...
May 10, 2017: Clinical Lung Cancer
https://www.readbyqxmd.com/read/28574782/rna-based-ovarian-cancer-research-from-a-gene-to-systems-biomedicine-perspective
#8
Esra Gov, Medi Kori, Kazim Yalcin Arga
Ovarian cancer remains the leading cause of death from a gynecologic malignancy, and treatment of this disease is harder than any other type of female reproductive cancer. Improvements in the diagnosis and development of novel and effective treatment strategies for complex pathophysiologies, such as ovarian cancer, require a better understanding of disease emergence and mechanisms of progression through systems medicine approaches. RNA-level analyses generate new information that can help in understanding the mechanisms behind disease pathogenesis, to identify new biomarkers and therapeutic targets and in new drug discovery...
August 2017: Systems Biology in Reproductive Medicine
https://www.readbyqxmd.com/read/28572538/twist1-is-highly-expressed-in-cancer-associated-fibroblasts-of-esophageal-squamous-cell-carcinoma-with-a-prognostic-significance
#9
So-Young Yeo, Sang-Yun Ha, Keun-Woo Lee, Yan Cui, Zhao-Ting Yang, Yan-Hua Xuan, Seok-Hyung Kim
Cancer-associated fibroblasts (CAFs) play important roles in cancer progression. Twist1 was recently reported to be a key regulator of CAFs in gastric cancer, but its role in other types of cancer remains unclear, especially for esophageal squamous cell carcinoma (ESCC). We assessed the Twist1 expression on stromal fibroblasts using immunohistochemistry in 169 tissue specimens from ESCC patients, and performed in vitro and in vivo experiments to confirm the role of Twist1 in CAFs of ESCC. And we investigated the biological pathways that are activated in Twist1-high ESCC using The Cancer Genome Atlas (TCGA) data...
May 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/28558758/fgf2-fgfr1-regulates-autophagy-in-fgfr1-amplified-non-small-cell-lung-cancer-cells
#10
Hong Yuan, Zi-Ming Li, Jiaxiang Shao, Wen-Xiang Ji, Weiliang Xia, Shun Lu
BACKGROUND: Autophagy is a conserved catabolic process to degrade cellular organelles. The role of autophagy in cancer development is complex. Amplification of fibroblast growth factor receptor 1 (FGFR1) is one of the most frequent targets in lung squamous cell carcinoma (SQCC). Whether fibroblast growth factor 2 (FGF2)/FGFR1 contributes to the regulation of autophagy remains elusive. METHODS: Autophagic activity was evaluated by immunoblotting for microtubule-associated protein 1 light chain 3 (LC3), formation of GFP-LC3 puncta, and monodansylcadaverine (MDC) staining...
May 30, 2017: Journal of Experimental & Clinical Cancer Research: CR
https://www.readbyqxmd.com/read/28553956/autocrine-wnt2-signaling-in-fibroblasts-promotes-colorectal-cancer-progression
#11
N Kramer, J Schmöllerl, C Unger, H Nivarthi, A Rudisch, D Unterleuthner, M Scherzer, A Riedl, M Artaker, I Crncec, D Lenhardt, T Schwarz, B Prieler, X Han, M Hengstschläger, J Schüler, R Eferl, R Moriggl, W Sommergruber, H Dolznig
The canonical WNT signaling pathway is crucial for intestinal stem cell renewal and aberrant WNT signaling is an early event in colorectal cancer (CRC) development. Here, we show for the first time that WNT2 is one of the most significantly induced genes in CRC stroma as compared to normal stroma. The impact of stromal WNT2 on carcinoma formation or progression was not addressed so far. Canonical WNT/β-catenin signaling was assessed using a 7TGP-reporter construct. Furthermore, effects of WNT2 on fibroblast migration and invasion were determined using siRNA-mediated gene silencing...
May 29, 2017: Oncogene
https://www.readbyqxmd.com/read/28545186/gallium-nanoparticle-mediated-reduction-of-brain-specific-serine-protease-4-in-an-experimental-metastatic-cancer-model
#12
Enas M Moustafa, Marwa Abdelhameed Mohamed, Noura M Thabet
Purpose: Tumor growth and metastasis depend on angiogenesis; therefore, efforts are being made to develop specific angiogenic inhibitors. Gallium (Ga) is the second most common metal ion, after platinum, used in cancer treatment. Its activities are numerous and various. In the present study, we aimed to investigate the effect of Ga on brain metastasis arising from hepatocellular carcinoma (HCC). Materials and methods: Forty experimental rats (divided into 4 groups) received diethylnitrosamine (DEN) at a dose (20 mg/kg...
April 1, 2017: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/28533482/cd147-functions-as-the-signaling-receptor-for-extracellular-divalent-copper-in-hepatocellular-carcinoma-cells
#13
Pengfei Ding, Xin Zhang, Shujuan Jin, Bo Duan, Pengxiang Chu, Yufei Zhang, Zhi-Nan Chen, Bin Xia, Fei Song
Elevated copper levels in tumor microenvironment are directly correlated to cancer progression in a variety of malignancies. Copper is required in angiogenesis, and promotes the proliferation and metastasis of cancer cells. However, the molecular mechanism of copper in promoting cancer progression remains elusive. Here we report that CD147 serves as a signaling receptor for extracellular Cu2+ in hepatocellular carcinoma (HCC) cells. Cu2+ binds to the extracellular membrane-proximal domain of CD147 and mediates its self-association...
May 9, 2017: Oncotarget
https://www.readbyqxmd.com/read/28531107/analysis-of-gene-expression-signatures-in-cancer-associated-stroma-from-canine-mammary-tumours-reveals-molecular-homology-to-human-breast-carcinomas
#14
Julia Ettlin, Elena Clementi, Parisa Amini, Alexandra Malbon, Enni Markkanen
Cancer-associated stroma (CAS) plays a key role in cancer initiation and progression. Spontaneously occurring canine mammary carcinomas are viewed as excellent models of human breast carcinomas. Considering the importance of CAS for human cancer, it likely plays a central role in canine tumours as well. So far, however, canine CAS lacks characterisation, and it remains unclear whether the biology between CAS from canine and human tumours is comparable. In this proof-of-principle study, using laser-capture microdissection, we isolated CAS and normal stroma from 13 formalin-fixed paraffin embedded canine simple mammary carcinomas and analysed the expression of seven known human CAS markers by RT-qPCR (Reverse Transcription quantitative PCR) and validated some targets by immunohistochemistry...
May 20, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28528976/necdin-modulates-osteogenic-cell-differentiation-by-regulating-dlx5-and-mage-d1
#15
Hyunhee Ju, Sangho Lee, Jinyong Lee, Sungho Ghil
Osteoblasts originate from mesenchymal stem cells that also differentiate into adipocytes, myoblasts, chondrocytes and fibroblasts. Osteogenic differentiation involves diverse regulatory proteins, including transcription and growth factors. Neurally differentiated embryonal carcinoma-derived protein (Necdin) has been identified as a key regulator of cell differentiation in various tissues, including neuronal, adipose, and muscular tissues; although its role in bone tissue remains to be established. Here, we investigated the potential involvement of Necdin in osteogenic differentiation...
May 19, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28526414/a-novel-sirt1-inhibitor-4bb-induces-apoptosis-in-hct116-human-colon-carcinoma-cells-partially-by-activating-p53
#16
Ananga Ghosh, Amrita Sengupta, Guru Pavan Kumar Seerapu, Ali Nakhi, E V Venkat Shivaji Ramarao, Navneet Bung, Gopalakrishnan Bulusu, Manojit Pal, Devyani Haldar
The NAD+-dependent protein deacetylase SIRT1 has emerged as an important target for epigenetic therapeutics of colon cancer as its increased expression is associated with cancer progression. Additionally, SIRT1 represses p53 function via deacetylation, promoting tumor growth. Therefore, inhibition of SIRT1 is of great therapeutic interest for the treatment of colon cancer. Here, we report discovery of a novel quinoxaline based small molecule inhibitor of human SIRT1, 4bb, investigated its effect on viability of colon cancer cells and molecular mechanism of action...
May 17, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28525898/ginsenoside-rg3-inhibits-the-senescence-of-prostate-stromal-cells-through-down-regulation-of-interleukin-8-expression
#17
Yanfei Peng, Ran Zhang, Lingfei Kong, Yongmei Shen, Da Xu, Fang Zheng, Jianwei Liu, Qian Wu, Bona Jia, Ju Zhang
Senescent stromal cells support the development of prostate cancer and are considered potential therapeutic targets. This research evaluated the regulatory effects of ginsenoside Rg3 on the senescence of prostatic stromal cells pre-incubated in medium supplemented with 0.5% fetal bovine serum. The results revealed that ginsenoside Rg3 decreased the number of stromal cells positively stained with a senescent cell marker (senescence-associated β-galactosidase). Ginsenoside Rg3 also increased the viability of stromal cells and promoted cell cycle transition from G0/G1 to S phase, as well as inhibited the carcinoma-associated fibroblast-like phenotype in prostate stromal cells, through the up-regulation of smooth muscle cell markers SM22 and smooth muscle myosin heavy chain...
May 4, 2017: Oncotarget
https://www.readbyqxmd.com/read/28523716/cd44-fibroblasts-increases-breast-cancer-cell-survival-and-drug-resistance-via-igf2bp3-cd44-igf2-signalling
#18
Yonglei Liu, Conghui Yu, Yonggang Wu, Xiangjun Sun, Quanping Su, Cuiping You, Hongwu Xin
CD44, a cell adhesion protein, involves in various process in cancer such as cell survival and metastasis. Most researches on CD44 in cancer focus on cancer cells. Recently, it is found that CD44 expression is high in fibroblasts of tumour microenvironment. However, its role in communication between fibroblasts and breast cancer cells is seldom known. In this study, CD44-positive (CD44(+) Fbs) and CD44-negative carcinoma-associated fibroblasts (CD44(-) Fbs) were isolated and cocultured with breast cancer cells for analysis of cell survival and drug resistance...
May 18, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/28518141/caf-secreted-cxcl1-conferred-radioresistance-by-regulating-dna-damage-response-in-a-ros-dependent-manner-in-esophageal-squamous-cell-carcinoma
#19
Hongfang Zhang, Jing Yue, Zhenzhen Jiang, Rongjing Zhou, Ruifei Xie, Yiping Xu, Shixiu Wu
Five-year survival rate of esophageal squamous cell carcinoma (ESCC) patients treated with radiotherapy is <20%. Our study aimed to investigate whether cancer-associated fibroblasts (CAFs), one major component of tumor microenvironment, were involved in tumor radioresistance in ESCC. By use of human chemokine/cytokine array, human chemokine CXCL1 was found to be highly expressed in CAFs compared with that in matched normal fibroblasts. Inhibition of CXCL1 expression in CAFs significantly reversed CAF-conferred radioresistance in vitro and in vivo...
May 18, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28506312/pathomimetic-avatars-reveal-divergent-roles-of-microenvironment-in-invasive-transition-of-ductal-carcinoma-in-situ
#20
Mansoureh Sameni, Dora Cavallo-Medved, Omar E Franco, Anita Chalasani, Kyungmin Ji, Neha Aggarwal, Arulselvi Anbalagan, Xuequn Chen, Raymond R Mattingly, Simon W Hayward, Bonnie F Sloane
BACKGROUND: The breast tumor microenvironment regulates progression of ductal carcinoma in situ (DCIS) to invasive ductal carcinoma (IDC). However, it is unclear how interactions between breast epithelial and stromal cells can drive this progression and whether there are reliable microenvironmental biomarkers to predict transition of DCIS to IDC. METHODS: We used xenograft mouse models and a 3D pathomimetic model termed mammary architecture and microenvironment engineering (MAME) to study the interplay between human breast myoepithelial cells (MEPs) and cancer-associated fibroblasts (CAFs) on DCIS progression...
May 15, 2017: Breast Cancer Research: BCR
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