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https://www.readbyqxmd.com/read/29456109/synthetic-strigolactone-analogues-reveal-anti-cancer-activities-on-hepatocellular-carcinoma-cells
#1
Mohammed Nihal Hasan, Hani Choudhry, Syed Shoeb Razvi, Said Salama Moselhy, Taha Abduallah Kumosani, Mazin A Zamzami, Ziad Omran, Majed A Halwani, Salim Al-Babili, Khalid Omer Abualnaja, Abdulrahman Labeed Al-Malki, Mahmoud Alhosin, Tadao Asami
Hepatocellular carcinoma (HCC) remains one of the leading causes of death worldwide. The complex etiology is attributed to many factors like heredity, cirrhosis, hepatitis infections or the dysregulation of the different molecular pathways. Nevertheless, the current treatment regimens have either severe side effects or tumors gradually acquire resistance upon prolonged use. Thus, developing a new selective treatment for HCC is the need of the hour. Many anticancer agents derived from plants have been evaluated for their cytotoxicity towards many human cancer cell lines...
February 9, 2018: Bioorganic & Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/29456091/frequency-of-human-papillomavirus-infection-in-patients-with-gastrointestinal-cancer
#2
F Roesch-Dietlen, A D Cano-Contreras, Y J Sánchez-Maza, J M Espinosa-González, M Á Vázquez-Prieto, E J Valdés-de la O, F Díaz-Roesch, M Á Carrasco-Arroniz, A Cruz-Palacios, P Grube-Pagola, A Sumoza-Toledo, H Vivanco-Cid, G Mellado-Sánchez, A Meixueiro-Daza, C S Silva-Cañetas, M G Carrillo-Toledo, R Lagunes-Torres, M Amieva-Balmori, P C Gómez-Castaño, J U Reyes-Huerta, J M Remes-Troche
INTRODUCTION AND AIM: Cancer is the result of the interaction of genetic and environmental factors. It has recently been related to viral infections, one of which is human papillomavirus. The aim of the present study was to describe the frequency of human papillomavirus infection in patients with digestive system cancers. MATERIALS AND METHODS: A prospective, multicenter, observational study was conducted on patients with gastrointestinal cancer at 2public healthcare institutes in Veracruz...
February 15, 2018: Revista de Gastroenterología de México
https://www.readbyqxmd.com/read/29454572/presence-of-colon-carcinoma-cells-at-the-resection-line-may-cause-recurrence-following-stapling-anastomosis
#3
Tzu-Chi Hsu, Ming-Jen Chen
BACKGROUND/OBJECTIVE: The presence of carcinoma cells in the suture line may result in local recurrence. The purpose of this study was to assess whether carcinoma cells were present along the resection line where the distal clamp was applied. METHODS: During surgery, the rectum was clamped at least 3 cm distal to the palpable margin of the tumor mass. The rectum was divided distal and proximal to the clamp. The tissue inside the clamp was rinsed with normal saline, and the irrigation solution was sent for cytologic examination...
February 14, 2018: Asian Journal of Surgery
https://www.readbyqxmd.com/read/29454261/frequency-of-somatic-tp53-mutations-in-combination-with-known-pathogenic-mutations-in-colon-adenocarcinoma-non-small-cell-lung-carcinoma-and-gliomas-as-identified-by-next-generation-sequencing
#4
Zahra Shajani-Yi, Francine B de Abreu, Jason D Peterson, Gregory J Tsongalis
The tumor suppressor gene TP53 is the most frequently mutated gene in human cancer. It encodes p53, a DNA-binding transcription factor that regulates multiple genes involved in DNA repair, metabolism, cell cycle arrest, apoptosis, and senescence. TP53 is associated with human cancer by mutations that lead to a loss of wild-type p53 function as well as mutations that confer alternate oncogenic functions that enable them to promote invasion, metastasis, proliferation, and cell survival. Identifying the discrete TP53 mutations in tumor cells may help direct therapies that are more effective...
February 13, 2018: Neoplasia: An International Journal for Oncology Research
https://www.readbyqxmd.com/read/29453211/fistulation-between-a-colonic-j-pouch-and-the-upper-vagina-in-an-irradiated-pelvis-a-rare-complication-following-low-anterior-resection-with-colonic-j-pouch-anal-anastomosis-for-rectal-cancer
#5
James Tankel, Shlomo Yellineck, Petachia Reissman
Formation of a colonic J-pouch with anastomosis to the rectal stump is an accepted form of reconstruction after low anterior resection (LAR) for rectal carcinoma. It is thought this can help prevent the onset of LAR syndrome as well as improve the quality of life in the first two years following surgery. Rectovaginal fistulation is a recognised complication of this form of surgery usually occurring because of technical failure leading to inclusion of the vaginal wall into the stapled anastomosis. We present an as of yet unreported case of fistulation between the upper horizontal staple line of a colonic J-pouch-the tip of the 'J'-which was formed extracorporeally with the posterior vaginal fornix...
February 16, 2018: BMJ Case Reports
https://www.readbyqxmd.com/read/29452147/combination-of-kras-activation-and-pten-deletion-contributes-to-murine-hepatopancreatic-ductal-malignancy
#6
Yun-Kai Lin, Zheng Fang, Tian-Yi Jiang, Zheng-Hua Wan, Yu-Fei Pan, Yun-Han Ma, Yuan-Yuan Shi, Ye-Xiong Tan, Li-Wei Dong, Yong-Jie Zhang, Hong-Yang Wang
Kras mutations are among the most common genetic abnormalities in human neoplasms, including cholangiocarcinomas, pancreatic cancer and colon cancer. PTEN has previously been associated with cholangiocarcinoma development in murine models. Here, we have established novel mouse models of neoplasms by liver-specific and biliary-pancreatic Kras activation and PTEN deletion. By liver-specific disruption of PTEN and activation of Kras in mice caused rapid development of intrahepatic biliary epithelial proliferative lesions (Intrahepatic cholangiocarcinoma, ICC), which progress through dysplasia to invasive carcinoma...
February 13, 2018: Cancer Letters
https://www.readbyqxmd.com/read/29451013/pradimicin-ird-from-amycolatopsis-sp-ird-009-and-its-antimicrobial-and-cytotoxic-activities
#7
Anelize Bauermeister, Felipe A Calil, Francisco das C L Pinto, Talita C T Medeiros, Larissa C Almeida, Leonardo J Silva, Itamar S de Melo, Tiago D Zucchi, Letícia V Costa-Lotufo, Luiz A B Moraes
A new polycyclic antibiotic, pradimicin-IRD, was isolated from actinobacteria Amycolatopsis sp. IRD-009 recovered from soil of Brazilian rainforest undergoing restoration area. This molecule is the major compound produced in solid culture media. The new compound was detected by a focused method of precursor ion (high-performance liquid chromatography coupled to tandem mass spectrometer) developed previously to identify unusual aminoglycosyl sugar moieties. The compound was isolated and its structure was, therefore, elucidated by high-resolution mass spectrometry, and 1D and 2D nuclear magnetic resonance experiments...
February 16, 2018: Natural Product Research
https://www.readbyqxmd.com/read/29450652/enhanced-tumor-diagnostic-and-therapeutic-effect-of-mesoporous-silica-nanoparticle-mediated-pre-targeted-strategy
#8
Gaochao Lv, Ke Li, Ling Qiu, Ying Peng, Xueyu Zhao, Xi Li, Qingzhu Liu, Shanshan Wang, Jianguo Lin
PURPOSE: Improving the targeting efficiency of imaging agents or anticancer drugs has become essential in the current primary mission to enhance the diagnostic or therapeutic effects. To improve the tumor diagnosis and therapy effect, a promising drug-delivery and targeting strategy was established based on the bioorthogonal chemistry. METHOD: The delivery system was composed of the pre-targeting carrier Biotin-MSNs-DBCO nanoparticles and the azido cargoes. The fluorescence probe 1-(3-azidopropyl) fluorescein (FITC-N 3 ) and ruthenium N-heterocyclic carbene complex N 3 -S-S-NHC-Ru were synthesized and served as the tumor imaging and therapy probes, respectively...
February 14, 2018: Pharmaceutical Research
https://www.readbyqxmd.com/read/29450149/human-and-mouse-microarrays-guided-expression-analysis-of-membrane-protein-trafficking-related-genes-in-mdck-cells-a-canine-epithelial-model-for-apical-and-basolateral-differential-protein-targeting
#9
Xiaofan Xu, Mingming Pan, Alexis E Gasiewicz, Rongzi Li, Shiu-Ming Kuo
MDCK cells are widely used to study the differential targeting of membrane transporters to apical and basolateral membrane but its canine origin limited the commercial tools available for the analysis of protein trafficking machinery. Because apical and basolateral membranes are only found in differentiated epithelial cells, genes critical for differential targeting may be specifically up-regulated upon MDCK cell differentiation. To search for these genes, a cross-species screening strategy was used. We first analyzed the human microarray data for protein trafficking-related genes that were up-regulated in colon carcinoma Caco2 cells upon differentiation...
June 2017: Biochimie Open
https://www.readbyqxmd.com/read/29448205/6-7-dimethoxy-1-2-3-4-tetrahydro-isoquinoline-3-carboxylic-acid-attenuates-colon-carcinogenesis-via-blockade-of-il-6-mediated-signals
#10
Priyanka Mishra, Vinit Raj, Archana S Bhadauria, Ashok K Singh, Amit Rai, Pranesh Kumar, Amit K Keshari, Arnab De, Amalesh Samanta, Umesh Kumar, Dinesh Kumar, Biswanath Maity, Sneha Nath, Anand Prakash, Kausar M Ansari, Sudipta Saha
In this study, we investigated the in vivo antiproliferative activity of 6,7-dimethoxy-1,2,3,4-tetrahydro-isoquinoline-3-carboxylic acid (M1) in dimethylhydrazine (DMH) induced colorectal carcinoma (CRC) using albino Wistar rats. M1 was administered to DMH induced CRC rats at 10 and 25 mg/kg doses for 15 days. Various physiological, oxidative parameters, histopathology, ELISA, gene and protein expression studies were conducted to evaluate the anti-CRC potential of M1. The histopathology and biochemical tests indicated the protective action of M1 in DMH-induced colon cancer...
February 12, 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29448085/plk2-loss-commonly-occurs-in-colorectal-carcinomas-but-not-adenomas-relationship-to-mtor-signaling
#11
Elizabeth M Matthew, Zhaohai Yang, Suraj Peri, Mark Andrake, Roland Dunbrack, Eric Ross, Wafik S El-Deiry
Plk2 is a target of p53. Our previous studies demonstrated that with wild-type p53, Plk2 impacts mTOR signaling in the same manner as TSC1, and Plk2-deficient tumors grew larger than control. Other investigators have demonstrated that Plk2 phosphorylates mutant p53 in a positive feedback loop. We investigated Plk2's tumor suppressor functions in relationship to mTOR signaling. Archival specimens from 12 colorectal adenocarcinomas were stained for markers including Plk2, phosphorylated mTOR (serine 2448) and ribosomal S6 (Serine 235/236)...
February 12, 2018: Neoplasia: An International Journal for Oncology Research
https://www.readbyqxmd.com/read/29446982/development-of-an-omentum-cultured-oesophageal-scaffold-reinforced-by-a-3d-printed-ring-feasibility-of-an-in-vivo-bioreactor
#12
Eun-Jae Chung, Hyung Woo Ju, Yeung Kyu Yeon, Ji Seung Lee, Young Jin Lee, Ye Been Seo, Park Chan Hum
Current treatments of oesophageal diseases, such as carcinoma, congenital abnormality or trauma, require surgical intervention and oesophageal reconstruction with the stomach, jejunum or colon. However, serious side effects are possible with each treatment option. Despite tissue engineering promising to be an effective regenerative strategy, no functional solution currently exists for oesophageal reconstruction. Here, we developed an omentum-cultured oesophageal scaffold reinforced by a 3D-printed ring. The nano-structured scaffolds were wrapped into the omentum of rats and orthotopically transplanted for the repair of circumferential oesophageal defects two weeks later...
February 15, 2018: Artificial Cells, Nanomedicine, and Biotechnology
https://www.readbyqxmd.com/read/29446734/cx3cl1-cx3cr1-axis-as-the-therapeutic-potential-in-renal-diseases-friend-or-foe
#13
Quan Zhuang, Ke Cheng, Yingzi Ming
The fractalkine receptor chemokine (C-X3-C motif) receptor 1 (CX3CR1) and its highly selective ligand CX3CL1 mediate chemotaxis and adhesion of immune cells, which are involved in the pathogenesis and progression of numerous inflammatory disorders and malignancies. The CX3CL1/CX3CR1 axis has recently drawn attention as a potential therapeutic target because it is involved in the ontogeny, homeostatic migration, or colonization of renal phagocytes. We performed a Medline/PubMed search to detect recently published studies that explored the relationship between the CX3CL1/CX3CR1 axis and renal diseases and disorders, including diabetic nephropathy, renal allograft rejection, infectious renal diseases, IgA nephropathy, fibrotic kidney disease, lupus nephritis and glomerulonephritis, acute kidney injury and renal carcinoma...
February 13, 2018: Current Gene Therapy
https://www.readbyqxmd.com/read/29442059/modified-transverse-coloplasty-pouch-new-reconstruction-techniques-after-total-mesorectal-excision-our-experience
#14
G Grimaldi, Chiara Eberspacher, A M Romani, D Merletti, A Maturo, S Pontone, D Pironi
AIM: The incidence of rectal cancer continues to rise. The functional results after complete Total Mesorectal Excision (TME) depend on the segment of colon used for reconstruction of colonic continuity and the form, the volume and the functional proprieties of the "neorectum". The aim of our study is evaluate the efficacy of our Modified Transverse Coloplasty Pouch (MTCP) after the treatment of low rectal cancer in terms of functional outcomes and quality of life. PATIENTS AND METHODS: The study included 136 patients, underwent TME from January 2007 to December 2016 with diagnosis of extraperitoneal carcinoma of the rectum...
November 2017: Il Giornale di Chirurgia
https://www.readbyqxmd.com/read/29439668/hipect4-multicentre-randomized-clinical-trial-to-evaluate-safety-and-efficacy-of-hyperthermic-intra-peritoneal-chemotherapy-hipec-with-mitomycin-c-used-during-surgery-for-treatment-of-locally-advanced-colorectal-carcinoma
#15
A Arjona-Sánchez, P Barrios, E Boldo-Roda, B Camps, J Carrasco-Campos, V Concepción Martín, A García-Fadrique, A Gutiérrez-Calvo, R Morales, G Ortega-Pérez, E Pérez-Viejo, A Prada-Villaverde, J Torres-Melero, E Vicente, P Villarejo-Campos, J M Sánchez-Hidalgo, A Casado-Adam, Ruben García-Martin, Manuel Medina, T Caro, C Villar, Enrique Aranda, M T Cano-Osuna, C Díaz-López, E Torres-Tordera, F J Briceño-Delgado, S Rufián-Peña
BACKGROUND: Local relapse and peritoneal carcinomatosis (PC) for pT4 colon cancer is estimated in 15,6% and 36,7% for 12 months and 36 months from surgical resection respectively, achieving a 5 years overall survival of 6%. There are promising results using prophylactic HIPEC in this group of patients, and it is estimated that up to 26% of all T4 colon cancer could benefit from this treatment with a minimal morbidity. Adjuvant HIPEC is effective to avoid the possibility of peritoneal seeding after surgical resection...
February 13, 2018: BMC Cancer
https://www.readbyqxmd.com/read/29438173/fallopian-tube-mucosal-involvement-in-cervical-gastric-type-adenocarcinomas-report-of-a-series-with-discussion-of-the-distinction-from-synchronous-in-situ-tubal-lesions
#16
Simon Rajendran, Yaser Hussein, Kay J Park, W Glenn McCluggage
Cervical gastric-type adenocarcinomas are aggressive non-human papillomavirus-related carcinomas with a propensity for extracervical spread, including unusual sites such as the omentum, peritoneum, and ovary. We report 7 cases of cervical gastric-type adenocarcinoma with fallopian tube involvement predominantly in the form of mucosal colonization without underlying invasion. As far as we are aware, this has not been previously described and this report adds to the literature regarding metastatic neoplasms, which may exhibit tubal mucosal involvement and mimic an in situ lesion at this site...
February 12, 2018: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/29436668/kynurenine-promotes-the-goblet-cell-differentiation-of-ht-29-colon-carcinoma-cells-by-modulating-wnt-notch-and-ahr-signals
#17
Joo-Hung Park, Jeong-Min Lee, Eun-Jin Lee, Da-Jeong Kim, Won-Bhin Hwang
Various amino acids regulate cell growth and differentiation. In the present study, we examined the ability of HT-29 cells to differentiate into goblet cells in RPMI and DMEM which are largely different in the amounts of numerous amino acids. Most of the HT-29 cells differentiated into goblet cells downregulating the stem cell marker Lgr5 when cultured in DMEM, but remained undifferentiated in RPMI. The goblet cell differentiation in DMEM was inhibited by 1-methyl-tryptophan (1-MT), an inhibitor of indoleamine 2,3 dioxygenase-1 which is the initial enzyme in tryptophan metabolism along the kynurenine (KN) pathway, whereas tryptophan and KN induced goblet cell differentiation in RPMI...
February 13, 2018: Oncology Reports
https://www.readbyqxmd.com/read/29435081/long-non-coding-rna-ccat2-promotes-epithelial-mesenchymal-transition-involving-wnt-%C3%AE-catenin-pathway-in-epithelial-ovarian-carcinoma-cells
#18
Beidi Wang, Meimei Liu, Rujin Zhuang, Jing Jiang, Jiayin Gao, Hao Wang, He Chen, Zongfeng Zhang, Ye Kuang, Peiling Li
Long non-coding RNA colon cancer-associated transcript 2 (CCAT2) is dysregulated in a variety of types of human cancer. However, the role of CCAT2 in epithelial ovarian carcinoma (EOC) remains largely unknown. The aim of this study is to investigate the effect of CCAT2 on epithelial-mesenchymal transition (EMT) and related molecular mechanisms in epithelial ovarian cancer cells. In the current paper, we found that CCAT2 was significantly upregulated in EOC SKOV3, A2780 and HO8910 cell lines compared with the normal ovarian epithelial HUM-CELL-0088 cell line...
March 2018: Oncology Letters
https://www.readbyqxmd.com/read/29435077/clinical-value-of-the-preoperative-neutrophil-to-lymphocyte-ratio-and-red-blood-cell-distribution-width-in-patients-with-colorectal-carcinoma
#19
Fuyan Han, Xuming Shang, Furong Wan, Zhanfeng Liu, Wenjun Tian, Dan Wang, Yiqing Liu, Yong Wang, Bingchang Zhang, Ying Ju
The aim of the present study was to investigate the clinical value of the preoperative neutrophil-to-lymphocyte ratio (NLR) and red blood cell distribution width (RDW) in the peripheral blood of colorectal carcinoma (CRC) patients. Clinical data obtained from 240 patients with CRC undergoing radical surgical resection in Shandong Provincial Hospital Affiliated to Shandong University (Jinan, Shandong, China) between January 2011 and April 2015 were retrospectively analyzed. Data were also collected from 110 patients with colon polyps and 48 healthy volunteers to serve as controls for comparative analysis...
March 2018: Oncology Letters
https://www.readbyqxmd.com/read/29435059/macc1-and-hgf-are-associated-with-survival-in-patients-with-gastric-cancer
#20
Guokai Dong, Man Wang, Guangfu Gu, Shanshan Li, Xiaoming Sun, Zhouru Li, Hongxing Cai, Zhengqiu Zhu
Metastasis-associsated in colon cancer 1 (MACC1), a newly identified oncogene, promotes tumor cell proliferation and invasion. In the present study, the expression of MACC1, hepatocyte growth factor (HGF) and its receptor, MET proto-oncogene (c-Met), was investigated in human gastric cancer tissues and adjacent normal tissues by immunohistochemistry. The association between the expression levels of the proteins and the clinicopathological parameters of the tumors were statistically analyzed. Furthermore, lentiviral particles expressing MACC1 were used to infect the hepatic satellite cell (HSC) line LX2...
March 2018: Oncology Letters
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