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https://www.readbyqxmd.com/read/28620128/cd133-targeted-oncolytic-adenovirus-demonstrates-anti-tumor-effect-in-colorectal-cancer
#1
Mizuho Sato-Dahlman, Yoshiaki Miura, Jing Li Huang, Praveensingh Hajeri, Kari Jacobsen, Julia Davydova, Masato Yamamoto
Oncolytic Adenoviruses (OAds) are one of the most promising anti-cancer agents that can induce cancer specific cell death. Recently, we generated infectivity-selective OAd, and the resultant OAd tumor-specific binding shows strong efficacy and mitigates toxicity. In this study, we applied this strategy based on adenovirus library screening system for generation of CD133-targeted OAd, and examined their oncolytic activity against colorectal cancer (CRC) in vitro and in vivo. CD133 (Prominin-1) is an important cell surface marker of cancer stem (like) cells (CSCs) in various cancers, including CRC...
June 2, 2017: Oncotarget
https://www.readbyqxmd.com/read/28422714/toll-like-receptor-3-as-an-immunotherapeutic-target-for-kras-mutated-colorectal-cancer
#2
Radhashree Maitra, Titto Augustine, Yitzchak Dayan, Carol Chandy, Matthew Coffey, Sanjay Goel
New therapeutic interventions are essential for improved management of patients with metastatic colorectal cancer (mCRC). This is especially critical for those patients whose tumors harbor a mutation in the KRAS oncogene (40-45% of all patients). This patient cohort is excluded from receiving anti-EGFR monoclonal antibodies that have added a significant therapeutic benefit for KRAS wild type CRC patients. Reovirus, a double stranded (ds) RNA virus is in clinical development for patients with chemotherapy refractory KRAS mutated tumors...
May 23, 2017: Oncotarget
https://www.readbyqxmd.com/read/28350509/epstein-barr-virus-and-its-association-with-fascin-expression-in-colorectal-cancers-in-the-syrian-population-a-tissue-microarray-study
#3
Noor Al-Antary, Hanan Farghaly, Tahar Aboulkassim, Amber Yasmeen, Nizar Akil, Ala-Eddin Al Moustafa
Colorectal cancer (CRC) is the third most common malignancy in both men and women worldwide. Colorectal carcinogenesis is a complex, multistep process involving environmental and lifestyle features as well as sequential genetic changes in addition to bacterial and viral infections. Viral infection has a proven role in the incidence of approximately 20% of human cancers including gastric malignancies. Accordingly, Epstein-Barr virus (EBV) has been recently shown to be present in human gastric cancers, which could play an important role in the initiation and progression of these cancers...
March 28, 2017: Human Vaccines & Immunotherapeutics
https://www.readbyqxmd.com/read/28282916/blockage-of-glyoxalase-i-inhibits-colorectal-tumorigenesis-and-tumor-growth-via-upregulation-of-stat1-p53-and-bax-and-downregulation-of-c-myc-and-bcl-2
#4
Yuan Chen, Lei Fang, Jiali Zhang, Gefei Li, Mengni Ma, Changxi Li, Jianxin Lyu, Qing H Meng
GlyoxalaseI (GLOI) is an enzyme that catalyzes methylglyoxal metabolism. Overexpression of GLOI has been documented in numerous tumor tissues, including colorectal cancer (CRC). The antitumor effects of GLOI depletion have been demonstrated in some types of cancer, but its role in CRC and the mechanisms underlying this activity remain largely unknown. Our purpose was to investigate the antitumor effects of depleted GLOI on CRC in vitro and in vivo. RNA interference was used to deplete GLOI activity in four CRC cell lines...
March 9, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28255604/detection-of-a-new-jcv-strain-of-genotype-a-in-a-subpopulation-of-colorectal-adenocarcinomas-in-tunisia
#5
Wafa Toumi, Alessandro Ripalti, Luigi Ricciardiello, Abderraouf Cherif, Dalila Gargouri, Ahmed Bouhafa, Jamel Kharrat, Slim Jarboui, Hichem Benrhouma, Mohamed Zili, Ridha Khelifa
The etiology of colorectal cancer (CRC) remains elusive in spite of major advances in knowledge of this disease and related risk factors. Several studies report the detection of human polyomavirus JC (JCV) in colorectal tumors and some suggest its association with CRC. Since many known human virus associations with cancer are linked to factors such as ethnic and geographical origin, it is interesting to search for the postulated association of JCV with CRC in different populations and regions. In this perspective, the present work was undertaken to assess the presence of JCV in CRC tumors in Tunisia...
April 2017: New Microbiologica
https://www.readbyqxmd.com/read/28224203/nucleic-acid-sensing-pattern-recognition-receptors-in-the-development-of-colorectal-cancer-and-colitis
#6
REVIEW
Liangmei He, Yayun Chen, Yuanbing Wu, Ying Xu, Zixiang Zhang, Zhiping Liu
Colorectal cancer (CRC) is a leading cause of cancer-related deaths that is often associated with inflammation initiated by activation of pattern recognition receptors (PRRs). Nucleic acid sensing PRRs are one of the major subsets of PRRs that sense nucleic acid (DNA and RNA), mainly including some members of Toll-like receptors (TLR3, 7, 8, 9), AIM2-like receptors (AIM2, IFI16), STING, cGAS, RNA polymerase III, and DExD/H box nucleic acid helicases (such as RIG-I like receptors (RIG-I, MDA5, LPG2), DDX1, 3, 5, 7, 17, 21, 41, 60, and DHX9, 36)...
February 21, 2017: Cellular and Molecular Life Sciences: CMLS
https://www.readbyqxmd.com/read/28223815/antitumor-effects-of-oncolytic-herpes-simplex-virus-type-2-against-colorectal-cancer-in-vitro-and-in-vivo
#7
Lei Yin, Chunhong Zhao, Jixia Han, Zengjun Li, Yanan Zhen, Ruixue Xiao, Zhongfa Xu, Yanlai Sun
BACKGROUND: The incidence of colorectal cancer (CRC) is on the rise. Furthermore, late-stage diagnoses and limited efficacious treatment options make CRC a complex clinical challenge. Therefore, a new therapeutic regimen with a completely novel therapeutic mechanism is necessary for CRC. In the present study, the therapeutic efficacy of oncolytic herpes simplex virus type 2 (oHSV2) in CRC was assessed in vitro and in vivo. oHSV2 is an oncolytic agent derived from herpes simplex virus type 2 that encodes granulocyte-macrophage colony-stimulating factor...
2017: Therapeutics and Clinical Risk Management
https://www.readbyqxmd.com/read/28219002/molecular-testing-for-gastrointestinal-cancer
#8
REVIEW
Hye Seung Lee, Woo Ho Kim, Yoonjin Kwak, Jiwon Koh, Jeong Mo Bae, Kyoung-Mee Kim, Mee Soo Chang, Hye Seung Han, Joon Mee Kim, Hwal Woong Kim, Hee Kyung Chang, Young Hee Choi, Ji Y Park, Mi Jin Gu, Min Jin Lhee, Jung Yeon Kim, Hee Sung Kim, Mee-Yon Cho
With recent advances in molecular diagnostic methods and targeted cancer therapies, several molecular tests have been recommended for gastric cancer (GC) and colorectal cancer (CRC). Microsatellite instability analysis of gastrointestinal cancers is performed to screen for Lynch syndrome, predict favorable prognosis, and screen patients for immunotherapy. The epidermal growth factor receptor (EGFR) tyrosine kinase inhibitor has been approved in metastatic CRCs with wildtype RAS (KRAS and NRAS exon 2-4). A BRAF mutation is required for predicting poor prognosis...
March 2017: Journal of Pathology and Translational Medicine
https://www.readbyqxmd.com/read/28060868/non-communicable-disease-preventive-screening-by-hiv-care-model
#9
Corinne M Rhodes, Yuchiao Chang, Susan Regan, Virginia A Triant
IMPORTANCE: The Human Immunodeficiency Virus (HIV) epidemic has evolved, with an increasing non-communicable disease (NCD) burden emerging and need for long-term management, yet there are limited data to help delineate the optimal care model to screen for NCDs for this patient population. OBJECTIVE: The primary aim was to compare rates of NCD preventive screening in persons living with HIV/AIDS (PLWHA) by type of HIV care model, focusing on metabolic/cardiovascular disease (CVD) and cancer screening...
2017: PloS One
https://www.readbyqxmd.com/read/28057020/rna-virus-receptor-rig-i-monitors-gut-microbiota-and-inhibits-colitis-associated-colorectal-cancer
#10
Houbao Zhu, Wang-Yang Xu, Zhiqiang Hu, Hongxin Zhang, Yan Shen, Shunyuan Lu, Chaochun Wei, Zhu-Gang Wang
BACKGROUND: Retinoic acid-inducible gene-I (Rig-I) is an intracellular viral RNA receptor, which specifically recognizes double-stranded viral RNA initiating antiviral innate immunity. Increasing evidences showed that Rig-I had broader roles in antibacterial immunity and cancer protection. However, the potential roles and mechanisms of Rig-I in gut flora regulation and colorectal cancer (CRC) progression remain unclear. METHODS: Immunohistochemistry was performed to detect Rig-I protein in 38 pairs of CRC tissue and matched adjacent mucosa, and immunofluorescence and western blot were also used to detect Rig-I protein expression in AOM/DSS-induced mice CRC samples...
January 5, 2017: Journal of Experimental & Clinical Cancer Research: CR
https://www.readbyqxmd.com/read/28041826/interpretation-of-cerebrospinal-fluid-white-blood-cell-counts-in-young-infants-with-a-traumatic-lumbar-puncture
#11
MULTICENTER STUDY
Todd W Lyons, Andrea T Cruz, Stephen B Freedman, Mark I Neuman, Fran Balamuth, Rakesh D Mistry, Prashant Mahajan, Paul L Aronson, Joanna E Thomson, Christopher M Pruitt, Samir S Shah, Lise E Nigrovic
STUDY OBJECTIVE: We determine the optimal correction factor for cerebrospinal fluid WBC counts in infants with traumatic lumbar punctures. METHODS: We performed a secondary analysis of a retrospective cohort of infants aged 60 days or younger and with a traumatic lumbar puncture (cerebrospinal fluid RBC count ≥10,000 cells/mm(3)) at 20 participating centers. Cerebrospinal fluid pleocytosis was defined as a cerebrospinal fluid WBC count greater than or equal to 20 cells/mm(3) for infants aged 28 days or younger and greater than or equal to 10 cells/mm(3) for infants aged 29 to 60 days; bacterial meningitis was defined as growth of pathogenic bacteria from cerebrospinal fluid culture...
May 2017: Annals of Emergency Medicine
https://www.readbyqxmd.com/read/27943637/quantitative-proteomic-profiling-of-paired-cancerous-and-normal-colon-epithelial-cells-isolated-freshly-from-colorectal-cancer-patients
#12
Chengjian Tu, Wilfrido Mojica, Robert M Straubinger, Jun Li, Shichen Shen, Miao Qu, Lei Nie, Rick Roberts, Bo An, Jun Qu
PURPOSE: The heterogeneous structure in tumor tissues from colorectal cancer (CRC) patients excludes an informative comparison between tumors and adjacent normal tissues. Here, we develop and apply a strategy to compare paired cancerous (CEC) versus normal (NEC) epithelial cells enriched from patients and discover potential biomarkers and therapeutic targets for CRC. EXPERIMENTAL DESIGN: CEC and NEC cells are respectively isolated from five different tumor and normal locations in the resected colon tissue from each patient (N = 12 patients) using an optimized epithelial cell adhesion molecule (EpCAM)-based enrichment approach...
May 2017: Proteomics. Clinical Applications
https://www.readbyqxmd.com/read/27732934/human-cytomegalovirus-infection-and-colorectal-cancer-risk-a-meta-analysis
#13
Bingjun Bai, Xingxing Wang, Engeng Chen, Hongbo Zhu
Human cytomegalovirus infection (HCMV) has been recently considered as a factor for tumorigenesis. The current study used meta-analytical techniques to explore the prevalence of HCMV in tumor tissues and the relationship between human cytomegalovirus and colorectal cancer (CRC) risk. 11 studies detecting HCMV DNA in tumor tissues were included in meta-analysis. The prevalence rate and odds ratio (OR) were two main parameters. The overall prevalence of human cytomegalovirus DNA in tumor tissues were 27.5% (95% CI = 17...
November 22, 2016: Oncotarget
https://www.readbyqxmd.com/read/27725862/a-novel-e1b55kda-deleted-oncolytic-adenovirus-carrying-microrna-143-exerts-specific-antitumor-efficacy-on-colorectal-cancer-cells
#14
Qifeng Luo, Shiva Basnet, Zhenling Dai, Shuping Li, Zhenyu Zhang, Haiyan Ge
The KRAS is an important and frequently mutated gene during colorectal carcinogenesis. The expression of miR-143 is often down-regulated and it might play an important role by targeting KRAS in colorectal cancer (CRC). The purpose of this study was to investigate the antitumor effects of miR-143 with an intermediate oncolytic adenovirus (Ad) in CRC. We constructed the recombinant virus Ad-ZD55-miR-143 and verified its expression by qPCR and western blot assays. Oncolytic potency of Ad-ZD55-miR-143 was determined by cytopathic effect assays using human SW480 CRC cells and L-02 normal liver cells...
2016: American Journal of Translational Research
https://www.readbyqxmd.com/read/27435237/identification-of-human-cytomegalovirus-in-tumour-tissues-of-colorectal-cancer-and-its-association-with-the-outcome-of-non-elderly-patients
#15
Hsin-Pai Chen, Jeng-Kai Jiang, Cheng-Yu Chen, Chih-Yung Yang, Yen-Chung Chen, Chi-Hung Lin, Teh-Ying Chou, Wen-Long Cho, Yu-Jiun Chan
Increasing evidence suggests that human cytomegalovirus (HCMV) plays an oncomodulatory role in human cancers. In colorectal cancer (CRC), presence of HCMV in tumours has been associated with a poor outcome in elderly patients. This study aimed to investigate the association between HCMV and the outcome of non-elderly patients with CRC. In tumour samples, HCMV DNA was detected by PCR. Viral transcript and protein were detected by in situ hybridization (ISH) and immunohistochemical staining (IHC), respectively...
September 2016: Journal of General Virology
https://www.readbyqxmd.com/read/27367028/evaluation-of-the-risk-of-lymphomagenesis-in-xenografts-by-the-pcr-based-detection-of-ebv-bamhi-w-region-in-patient-cancer-specimens
#16
Junko Mukohyama, Dai Iwakiri, Yoh Zen, Toru Mukohara, Hironobu Minami, Yoshihiro Kakeji, Yohei Shimono
Establishment of patient-derived tumor xenografts (PDXs) is hampered by lymphomagenesis mostly caused by the latently-infected Epstein-Barr virus (EBV) contained in patient cancer tissues. However, the character of patient tissues that result in lymphomagenesis after xenotransplantation is not elucidated. In this study, we analyzed the patient colorectal cancer (CRC) tissues and the PDXs established by their xenotransplantation. We found that 2 of 9 (22%) PDX tumors were EBV-associated human diffuse large B cell lymphoma which was formed by clonal proliferation of human B-cell lymphocytes, were strongly positive for EBER-ISH, and were classified as type III latency...
August 2, 2016: Oncotarget
https://www.readbyqxmd.com/read/27247488/epstein-barr-virus-induced-gene-3-ebi3-blocking-leads-to-induce-antitumor-cytotoxic-t-lymphocyte-response-and-suppress-tumor-growth-in-colorectal-cancer-by-bidirectional-reciprocal-regulation-stat3-signaling-pathway
#17
Yanfang Liang, Qianqian Chen, Wenjing Du, Can Chen, Feifei Li, Jingying Yang, Jianyu Peng, Dongping Kang, Bihua Lin, Xingxing Chai, Keyuan Zhou, Jincheng Zeng
Epstein-Barr virus-induced gene 3 (EBI3) is a member of the interleukin-12 (IL-12) family structural subunit and can form a heterodimer with IL-27p28 and IL-12p35 subunit to build IL-27 and IL-35, respectively. However, IL-27 stimulates whereas IL-35 inhibits antitumor T cell responses. To date, little is known about the role of EBI3 in tumor microenvironment. In this study, firstly we assessed EBI3, IL-27p28, IL-12p35, gp130, and p-STAT3 expression with clinicopathological parameters of colorectal cancer (CRC) tissues; then we evaluated the antitumor T cell responses and tumor growth with a EBI3 blocking peptide...
2016: Mediators of Inflammation
https://www.readbyqxmd.com/read/27155943/screening-of-human-bocavirus-in-surgically-excised-cancer-specimens
#18
Ahmed S Abdel-Moneim, Hosam A El-Fol, Mahmoud M Kamel, Ahmed S A Soliman, Emad A Mahdi, Ahmed S El-Gammal, Taha Z M Mahran
Human bocavirus (HBoV) is a prevalent virus worldwide and is mainly associated with respiratory disorders. Recently, it was detected in several disease conditions, including cancers. Colorectal cancer (CRC) is the third main cause of cancers worldwide. Risk factors that initiate cell transformation include nutritional, hereditary and infectious causes. The aim of the current study was to screen for the presence of HBoV in solid tumors of colorectal cancer and to determine the genotypes of the detected strains...
August 2016: Archives of Virology
https://www.readbyqxmd.com/read/27073543/establishment-of-a-colorectal-cancer-nude-mouse-visualization-model-of-hif-1%C3%AE-overexpression
#19
Zhe Li, Jiye Wang, Tianbao Zhou, Xiaolei Ye
The aim of the present study was to establish a model of tumor cell growth and visualize HIF-1α overexpression in a nude mouse xenograft model of colorectal cancer (CRC). In the study, HIF-1α lentiviral vector and helper plasmid were co-transfected into 293T packaging cells using a liposome method, and the virus was collected following transfection and used to infect CRC SW480, SW620, LoVo and HCT116 cells. Puromycin was used for the selection and large-scale amplification of the stable HIF-1α expression of green fluorescent protein (GFP)-positive cells...
April 2016: Oncology Letters
https://www.readbyqxmd.com/read/26975327/demonstration-of-herpes-simplex-virus-cytomegalovirus-and-epstein-barr-virus-in-colorectal-cancer
#20
Sahar Mehrabani-Khasraghi, Mitra Ameli, Farzad Khalily
BACKGROUND: The present study sought to investigate molecular evidence for association between the presence of herpes simplex virus (HSV), cytomegalovirus (CMV), and Epstein-Barr virus (EBV) in CRC and colorectal polyp by using the PCR method in Iran. METHODS: In this analytical case-control study, we selected 15 patients with CRC, 20 patients with colorectal polyp, and 35 patients without malignancy as controls. After DNA extraction, PCR was used to determine HSV, CMV, and EBV genome by specific primers...
November 2016: Iranian Biomedical Journal
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