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Clinical pathways and cancer

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https://www.readbyqxmd.com/read/28441771/hepatocyte-growth-factor-c-met-signaling-in-head-and-neck-cancer-and-implications-for-treatment
#1
REVIEW
Natalie J Rothenberger, Laura P Stabile
Aberrant signaling of the hepatocyte growth factor (HGF)/c-Met pathway has been identified as a promoter of tumorigenesis in several tumor types including head and neck squamous cell carcinoma (HNSCC). Despite a relatively low c-Met mutation frequency, overexpression of HGF and its receptor c-Met has been observed in more than 80% of HNSCC tumors, with preclinical and clinical studies linking overexpression with cellular proliferation, invasion, migration, and poor prognosis. c-Met is activated by HGF through a paracrine mechanism to promote cellular morphogenesis enabling cells to acquire mesenchymal phenotypes in part through the epithelial-mesenchymal transition, contributing to metastasis...
April 24, 2017: Cancers
https://www.readbyqxmd.com/read/28441385/preoperative-clinical-pathway-of-breast-cancer-patients-determinants-of-compliance-with-eusoma-quality-indicators
#2
Delphine Héquet, Cyrille Huchon, Sandrine Baffert, Séverine Alran, Fabien Reyal, Thuy Nguyen, Alix Combes, Caroline Trichot, Karine Alves, Hélène Berseneff, Roman Rouzier
BACKGROUND: The European Society of Breast Cancer Specialists (EUSOMA) has defined quality indicators for breast cancer (BC). The aim of this study was to describe the preoperative clinical pathway of breast cancer patients and evaluate the determinants of compliance with EUSOMA quality indicators in the Optisoins01 cohort. METHODS: Optisoins01 is a prospective, multicentric study. Data from operable BC patients were collected, including results from before surgery to 1 year follow-up...
April 25, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/28441383/the-oral-vegf-receptor-tyrosine-kinase-inhibitor-pazopanib-in-combination-with-the-mek-inhibitor-trametinib-in-advanced-cholangiocarcinoma
#3
Rachna T Shroff, Mark Yarchoan, Ashley O'Connor, Denise Gallagher, Marianna L Zahurak, Gary Rosner, Chimela Ohaji, Susan Sartorius-Mergenthaler, Vivek Subbiah, Ralph Zinner, Nilofer S Azad
BACKGROUND: Cholangiocarcinoma is an aggressive malignancy with limited therapeutic options. MEK inhibition and antiangiogenic therapies have individually shown modest activity in advanced cholangiocarcinoma, whereas dual inhibition of these pathways has not been previously evaluated. We evaluated the safety and efficacy of combination therapy with the oral VEGF receptor tyrosine kinase inhibitor pazopanib plus the MEK inhibitor trametinib in patients with advanced cholangiocarcinoma...
April 25, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/28441382/hedgehog-signalling-pathway-orchestrates-angiogenesis-in-triple-negative-breast-cancers
#4
Concetta Di Mauro, Roberta Rosa, Valentina D'Amato, Paola Ciciola, Alberto Servetto, Roberta Marciano, Roberta Clara Orsini, Luigi Formisano, Sandro De Falco, Valeria Cicatiello, Maurizio Di Bonito, Monica Cantile, Francesca Collina, Angela Chambery, Bianca Maria Veneziani, Sabino De Placido, Roberto Bianco
BACKGROUND: Several evidences suggest a marked angiogenic dependency in triple-negative breast cancer (TNBC) tumorigenesis and a potential sensitivity to anti-angiogenic agents. Herein, the putative role of Hedgehog (Hh) pathway in regulating TNBC-dependent angiogenesis was investigated. METHODS: Expression and regulation of the Hh pathway transcription factor glioma-associated oncogene homolog1 protein (GLI1) were studied on the endothelial compartment and on TNBC-initiated angiogenesis...
April 25, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/28440513/optimization-of-antitumor-treatment-conditions-for-transcutaneous-co2-application-an-in-vivo-study
#5
Takeshi Ueha, Teruya Kawamoto, Yasuo Onishi, Risa Harada, Masaya Minoda, Mitsunori Toda, Hitomi Hara, Naomasa Fukase, Masahiro Kurosaka, Ryosuke Kuroda, Toshihiro Akisue, Yoshitada Sakai
Carbon dioxide (CO2) therapy can be applied to treat a variety of disorders. We previously found that transcutaneous application of CO2 with a hydrogel decreased the tumor volume of several types of tumors and induced apoptosis via the mitochondrial pathway. However, only one condition of treatment intensity has been tested. For widespread application in clinical antitumor therapy, the conditions must be optimized. In the present study, we investigated the relationship between the duration, frequency, and treatment interval of transcutaneous CO2 application and antitumor effects in murine xenograft models...
April 20, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28440503/cd24-expression-is-a-marker-for-predicting-clinical-outcome-and-regulates-the-epithelial-mesenchymal-transition-in-ovarian-cancer-via-both-the-akt-and-erk-pathways
#6
Kiyoko Nakamura, Yoshito Terai, Akiko Tanabe, Yoshihiro J Ono, Masami Hayashi, Kazuya Maeda, Satoe Fujiwara, Keisuke Ashihara, Michihiko Nakamura, Yoshimichi Tanaka, Tomohito Tanaka, Satoshi Tsunetoh, Hiroshi Sasaki, Masahide Ohmichi
The degree of peritoneal dissemination and chemotherapy-resistant tumors is related to the prognosis in patients with advanced-stage ovarian cancer. The epithelial-mesenchymal-transition (EMT) is a multifaceted pathological program that endows cancer cells with the ability to invade and disseminate. CD24 is frequently overexpressed in various human cancers and is correlated with a poor prognosis. We herein examined the functions of CD24 in human ovarian cancer cell lines and evaluated how it contributes to the molecular mechanism underlying the regeneration of cancer stem-like cells (CSCs) through the EMT mechanism in ovarian carcinoma...
April 19, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28440444/mirna-556-3p-promotes-human-bladder-cancer-proliferation-migration-and-invasion-by-negatively-regulating-dab2ip-expression
#7
Chen Feng, Ping Sun, Jing Hu, Hua Feng, Mingqiu Li, Guibo Liu, Yanming Pan, Ying Feng, Yongliang Xu, Kejian Feng, Yukuan Feng
MicroRNAs (miRNAs) play critical roles in tumorigenesis and metastasis by negatively regulating gene expression through complementary binding to the 3'-untranslated region of target mRNAs. The role of miRNAs in expression of the tumor suppressor DAB2IP in bladder cancer (BC) remains unknown. The aim of the present study was to identify miRNAs targeting DAB2IP and determine their expression and function in BC. We predicted candidate miRNAs targeting DAB2IP using TargetScan software. Dual-luciferase reporter assays confirmed that miRNA-556-3p directly regulated DAB2IP expression...
April 20, 2017: International Journal of Oncology
https://www.readbyqxmd.com/read/28440432/ron-and-c-met-facilitate-metastasis-through-the-erk-signaling-pathway-in-prostate-cancer-cells
#8
Binbin Yin, Zhenping Liu, Yiyun Wang, Xuchu Wang, Weiwei Liu, Pan Yu, Xiuzhi Duan, Chunhua Liu, Yuhua Chen, Yurong Zhang, Xiaoyan Pan, Hangping Yao, Zhaoping Liao, Zhihua Tao
Prostate cancer (PCa) is a metastatic malignant cancer driven by complex pathological mechanisms and characterized by poor long-term prognosis. Metastasis is the main cause of death of PCa patients, yet the molecular mechanisms of this process are poorly understood. In the present study, positive co-expression of RON and c-Met was observed in human clinical PCa tissues (biopsy material), as detected by immunohistochemical staining and quantitative real-time PCR. We investigated this further in PCa cells, demonstrating that the inhibition of RON and c-Met with foretinib (GSK1363089) suppressed metastasis and promoted the reversal of the epithelial-to-mesenchymal transition (EMT) in PCa cells...
April 19, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28440207/epithelial-mesenchymal-transition-in-cancer-progression-preventive-phytochemicals
#9
Soorya Parathodi Illam, Arunaksharan Narayanankutty, Shaji Edappilly Mathew, Remya Valsalakumari, Rosemol M Jacob, Achuthan Chathrattil Raghavamenon
BACKGROUND: Epithelial-Mesenchymal Transition (EMT) is the conversion of epithelial cells into mesenchymal phenotype generally observed during embryogenesis and wound healing as well as in malignant transformation. Several signaling pathways and transcription factors associated with EMT have been explored. Dietary phytochemicals are multi-targeted agents that interfere with these pathways, assume preventive potential against pathologic EMT. OBJECTIVE: Present review aims to provide a detailed description on the nature, characteristics of EMT in physiological and pathophysiological conditions and the scope of phytochemicals in its prevention...
April 24, 2017: Recent Patents on Anti-cancer Drug Discovery
https://www.readbyqxmd.com/read/28439677/ap-2%C3%AE-reverses-vincristine-induced-multidrug-resistance-of-sgc7901-gastric-cancer-cells-by-inhibiting-the-notch-pathway
#10
Wei Lian, Li Zhang, Long Yang, Wensheng Chen
Multidrug resistance (MDR) remains a major clinical obstacle in the treatment of gastric cancer (GC) since it causes tumor recurrence and metastasis. The transcription factor activator protein-2α (AP-2α) has been implicated in drug-resistance in breast cancer; however, its effects on MDR of gastric cancer are far from understood. In this study, we aimed to explore the effects of AP-2α on the MDR in gastric cancer cells selected by vincristine (VCR). Decreased AP-2α levels were markedly detected by RT-PCR and Western blot in gastric cancer cell lines (BGC-823, SGC-7901, AGS, MKN-45) compared with that in the gastric epithelial cell line (GES-1)...
April 24, 2017: Apoptosis: An International Journal on Programmed Cell Death
https://www.readbyqxmd.com/read/28439670/residual-recurrent-nerve-paralysis-after-esophagectomy-is-associated-with-preoperative-lower-serum-albumin
#11
Makoto Miyamoto, Yoshiki Kobayashi, Eri Miyata, Tomofumi Sakagami, Masao Yagi, Akira Kanda, Taku Michiura, Koichi Tomoda
Esophagectomy for esophageal cancer is invasive thoracic surgery with a high incidence rate of postoperative complications and prolongation of hospitalization, even if the standardized clinical pathway improves the outcome (mortality and morbidity). Postoperative recurrent nerve paralysis (RNP) is related to respiratory complications concomitant with prolonged hospitalization. However, it has not been elucidated which factors affect the incidence and recovery of RNP. To detect the predictive factor for postoperative RNP, we focused on preoperative serum albumin...
April 24, 2017: Dysphagia
https://www.readbyqxmd.com/read/28437763/depression-and-insomnia-as-mediators-of-the-relationship-between-distress-and-quality-of-life-in-cancer-patients
#12
Kyeong Min Cha, Young Ki Chung, Ki Young Lim, Jae Sung Noh, Mison Chun, So Yeon Hyun, Dae Ryong Kang, Min Jung Oh, Nam Hee Kim
BACKGROUND: Distress in cancer patients leads to poorer quality of life (QOL) and negatively impacts survival. For efficient management of a patient's disease course, the interrelationships among distress, depression, insomnia, and QOL must be understood. This study aimed to investigate whether depression and insomnia mediate the relationship between distress and QOL in cancer patients. METHODS: Cancer patients referred to a specialized psycho-oncology clinic (n=208) participated in this study...
April 17, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/28436707/samhd1-protects-cancer-cells-from-various-nucleoside-based-antimetabolites
#13
Nikolas Herold, Sean G Rudd, Kumar Sanjiv, Juliane Kutzner, Julia Bladh, Cynthia B J Paulin, Thomas Helleday, J I Henter, Torsten Schaller
Recently, we demonstrated that sterile alpha motif and HD domain containing protein 1 (SAMHD1) is a major barrier in acute myelogenous leukemic (AML) cells to the cytotoxicity of cytarabine (ara-C), the most important drug in AML treatment. Ara-C is intracellularly converted by the canonical dNTP synthesis pathway to ara-CTP, which serves as a substrate but not an allosteric activator of SAMHD1. Using an AML mouse model, we show here that wild type but not catalytically inactive SAMHD1 reduces ara-C treatment efficacy in vivo...
April 24, 2017: Cell Cycle
https://www.readbyqxmd.com/read/28436261/a-qrt-pcr-and-gene-functional-enrichment-study-focused-on-downregulation-of-mir-141-3p-in-hepatocellular-carcinoma-and-its-clinicopathological-significance
#14
Cui-Zhen Liu, Zhi-Hua Ye, Jie Ma, Rong-Quan He, Hai-Wei Liang, Zhi-Gang Peng, Gang Chen
BACKGROUND: The clinical significance of miR-141-3p in hepatocellular carcinoma has not been verified. Therefore, we conducted this study to examine miR-141-3p expression and its clinical significance in hepatocellular carcinoma and to investigate the functions of its potential targets. METHODS: The Cancer Genome Atlas database and the Gene Expression Omnibus database were used to explore the aberrant expression of miR-141-3p in hepatocellular carcinoma. Furthermore, we assessed the miR-141-3p levels in 95 hepatocellular carcinoma tissues with 95 matched adjacent tissues using real-time quantitative polymerase chain reaction...
January 1, 2017: Technology in Cancer Research & Treatment
https://www.readbyqxmd.com/read/28435746/the-paradoxical-functions-of-egfr-during-breast-cancer-progression
#15
Remah Ali, Michael K Wendt
The epidermal growth factor receptor (EGFR) is one of the most well-studied signaling pathways in cancer progression. As a result, numerous therapeutics including small-molecule inhibitors and monoclonal antibodies have been developed to target this critical oncogenic driver. Several of these EGFR inhibitors (EGFRi) have been evaluated in metastatic breast cancer, as high-level EGFR expression in primary tumors correlates with the highly aggressive basal-like phenotype and predicts for poor patient prognosis...
2017: Signal Transduction and Targeted Therapy
https://www.readbyqxmd.com/read/28434943/epigenetic-pathways-in-human-disease-the-impact-of-dna-methylation-on-stress-related-pathogenesis-and-current-challenges-in-biomarker-development
#16
M Austin Argentieri, Sairaman Nagarajan, Bobak Seddighzadeh, Andrea A Baccarelli, Alexandra E Shields
HPA axis genes implicated in glucocorticoid regulation play an important role in regulating the physiological impact of social and environmental stress, and have become a focal point for investigating the role of glucocorticoid regulation in the etiology of disease. We conducted a systematic review to critically assess the full range of clinical associations that have been reported in relation to DNA methylation of CRH, CRH-R1/2, CRH-BP, AVP, POMC, ACTH, ACTH-R, NR3C1, FKBP5, and HSD11β1/2 genes in adults...
April 4, 2017: EBioMedicine
https://www.readbyqxmd.com/read/28434400/role-of-modern-immunotherapy-in-gastrointestinal-malignancies-a-review-of-current-clinical-progress
#17
REVIEW
Zin W Myint, Gaurav Goel
Gastrointestinal (GI) cancers are a group of highly aggressive malignancies with a huge disease burden worldwide. There is clearly a significant unmet need for new drugs and therapies to further improve the treatment outcomes of GI malignancies. Immunotherapy is a novel treatment strategy that is emerging as an effective and promising treatment option against several types of cancers. CTLA-4 and PD-1 are critical immune checkpoint molecules that negatively regulate T cell activation via distinct mechanisms...
April 24, 2017: Journal of Hematology & Oncology
https://www.readbyqxmd.com/read/28434174/molecular-alterations-and-expression-dynamics-of-lats1-and-lats2-genes-in-non-small-cell-lung-carcinoma
#18
Showkat A Malik, Mosin S Khan, Majeed Dar, Mahboob Ul Hussain, Mohammad A Shah, Sheikh M Shafi, Syed Mudassar
Large tumor suppressor (LATS) is an important member of the Hippo pathway which can regulate organ size and cell proliferation. However, very little is known about the expression and clinical significance of LATS in lung cancer especially from this part of the world. We elucidated the frequency of LATS1 &LATS2 promoter hypermethylation (by methylation-specific PCR) and expression (by real-time PCR) in sixty nine (n = 69) Non-Small Cell Lung Cancer (NSCLC) patients and their corresponding normal lung tissue samples...
April 22, 2017: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/28434112/dendritic-cell-based-vaccination-strategy-an-evolving-paradigm
#19
REVIEW
Anna C Filley, Mahua Dey
Malignant gliomas (MG), tumors of glial origin, are the most commonly diagnosed primary intracranial malignancies in adults. Currently available treatments have provided only modest improvements in overall survival and remain limited by inevitable local recurrence, necessitating exploration of novel therapies. Among approaches being investigated, one of the leading contenders is immunotherapy, which aims to modulate immune pathways to stimulate the selective destruction of malignant cells. Dendritic cells (DCs) are potent initiators of adaptive immune responses and therefore crucial players in the development and success of immunotherapy...
April 22, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/28433655/targeting-sarcoma-tumor-initiating-cells-through-differentiation-therapy
#20
Dan Han, Veronica Rodriguez-Bravo, Elizabeth Charytonowicz, Elizabeth Demicco, Josep Domingo-Domenech, Robert G Maki, Carlos Cordon-Cardo
Human leukocyte antigen class I (HLA-I) down-regulation has been reported in many human cancers to be associated with poor clinical outcome. However, its connection to tumor-initiating cells (TICs) remains unknown. In this study, we report that HLA-I is down-regulated in a subpopulation of cells that have high tumor initiating capacity in different types of human sarcomas. Detailed characterization revealed their distinct molecular profiles regarding proliferation, apoptosis and stemness programs. Notably, these TICs can be induced to differentiate along distinct mesenchymal lineages, including the osteogenic pathway...
April 13, 2017: Stem Cell Research
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