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https://read.qxmd.com/read/30784110/nuclear-localization-and-overexpression-of-smoothened-in-pancreatic-and-colorectal-cancers
#1
Madiha Niyaz, Mosin S Khan, Rauf A Wani, Omar J Shah, Syed Besina, Syed Mudassar
Smoothened (SMO) is a significant signalling protein which functions as a key transducer for the hedgehog signalling pathway, an important signalling mechanism with key roles in development and oncogenesis. The correlation of expression dynamics of SMO with pancreatic and colorectal cancer genesis has been known but with ambiguity. Therefore, in this study, we investigated messenger RNA (mRNA) and protein expression of SMO in pancreatic and colorectal cancers in our population and assessed relationship with various clinicopathological parameters...
February 19, 2019: Journal of Cellular Biochemistry
https://read.qxmd.com/read/30774439/pathological-risk-factors-for-lymph-node-metastasis-in-patients-with-submucosal-invasive-colorectal-carcinoma
#2
Qiongyan Zhang, Lei Wang, Dan Huang, Midie Xu, Weiwei Weng, Shujuan Ni, Cong Tan, Weiqi Sheng
Background: Risk grade assessment determines therapy in patients with submucosal invasive colorectal carcinoma (CRC). However, treatment decisions are often difficult due to a lack of consensus on which risk factors should be considered. We aimed to identify predictive risk factors for lymph node metastasis (LNM) in a large cohort of submucosal invasive CRC patients from China. Patients and methods: Following collection of clinicopathological data and disease-free survival (DFS) rates from 290 patients who underwent radical intestinal resection with regional lymphadenectomy, we immunohistochemically assessed expression of DNA mismatch repair (MMR) proteins and p53...
2019: Cancer Management and Research
https://read.qxmd.com/read/30756192/laparoscopic-surgery-to-treat-leiomyosarcomas-of-the-sigmoid-colon-a-case-report-and-literature-review
#3
Masashi Yahagi, Yoshiyuki Ishii, Atsuko Hara, Masahiko Watanabe
BACKGROUND: Leiomyosarcomas (LMSs) of the colon are extremely rare and highly aggressive. Although treatment of gastrointestinal LMS is not standardized, surgical resection is generally performed. The fact that the tumors are usually large at the time of diagnosis may explain why no report on laparoscopic resection of a colonic LMS has appeared. CASE PRESENTATION: A 46-year-old male presented with hematochezia 1 month in duration. Abdominal examination including palpation was normal...
February 12, 2019: Surgical Case Reports
https://read.qxmd.com/read/30755809/overexpressed-acp5-has-prognostic-value-in-colorectal-cancer-and-promotes-cell-proliferation-and-tumorigenesis-via-fak-pi3k-akt-signaling-pathway
#4
Zheng-Qian Bian, Yang Luo, Feng Guo, Yi-Zhou Huang, Ming Zhong, Hui Cao
The tartrate-resistant acid phosphatase (TRAP/ACP5) correlated with tumor progression in many malignancies. However, the role of ACP5 in colorectal cancer (CRC) has not been thoroughly elucidated. In this study, we sought to identify the role for ACP5 in CRC progression. Immunohistochemistry revealed that high ACP5 expression is positively associated with tumor size, tumor classification, lymph node metastasis, distant metastasis and advanced stage cancer in 285 CRC patients. Moreover, high ACP5 expression was significantly associated with poor overall survival and disease-free survival...
2019: American Journal of Cancer Research
https://read.qxmd.com/read/30740676/a-functional-variant-in-the-flanking-region-of-pri-let-7f-contributes-to-colorectal-cancer-risk-in-a-chinese-population
#5
Fang Yuan, Xiao Xiao, Guanglu Che, Yanyun Wang, Tao Wang, Xiaolei Luo, Weibo Liang, Linbo Gao, Lin Zhang
Let-7f was reported to be downregulated in patients with colorectal cancer (CRC). However, little is known about the role of let-7f in CRC carcinogenesis. The aim of this study was to investigate the correlation between genetic polymorphisms in the flanking region of pri-let-7f and CRC risk, as well as the potential role of let-7f in CRC cell migration and invasion. The pri-let-7f-1 rs10739971 and pri-let-7f-2 rs17276588 were genotyped using TaqMan (Applied Biosystems, Foster City, CA) assay. The luciferase activity was detected using Dual-Luciferase Reporter Assay...
February 10, 2019: Journal of Cellular Physiology
https://read.qxmd.com/read/30739527/reduced-aquaporin-1-transcript-expression-in-colorectal-carcinoma-is-associated-with-promoter-hypermethylation
#6
Eric Smith, Yoko Tomita, Helen M Palethorpe, Stuart Howell, Maryam Nakhjavani, Amanda R Townsend, Timothy J Price, Joanne P Young, Jennifer E Hardingham
Aquaporin-1 (AQP1) is a homo-tetrameric transmembrane protein that facilitates rapid movement of water and ions across cell membranes. The clinical significance of AQP1 expression in colorectal carcinoma (CRC) is controversial. The aim of this study was to investigate the prognostic significance of AQP1 transcript expression and the association between expression and promoter methylation in normal colonic mucosa, CRC tissues and cell lines. Analysis of publicly available datasets from The Cancer Genome Atlas revealed that AQP1 expression was significantly decreased in CRC compared to normal mucosa (12...
February 9, 2019: Epigenetics: Official Journal of the DNA Methylation Society
https://read.qxmd.com/read/30734278/colorectal-cancer-exosomes-induce-lymphatic-network-remodeling-in-lymph-nodes
#7
Bo Sun, Yiming Zhou, Yantian Fang, Zhenyang Li, Xiaodong Gu, Jianbin Xiang
The lymphatic network remodeling may guide tumor metastasis in a sentinel lymph node (SLN). Although tumor-derived exosomes have been demonstrated to modify the microenvironment in adjacent organs and initiate a pre-metastatic niche, their influence on the lymphatic network in SLNs has not been explained. Here, we show that CT26 cell exosomes (Exo) promote the proliferation of lymphatic endothelial cells and the formation of lymphatic network in SLN, facilitating the SLN metastasis of colorectal cancer (CRC)...
February 8, 2019: International Journal of Cancer. Journal International du Cancer
https://read.qxmd.com/read/30733075/biomarker-concordance-between-primary-colorectal-cancer-and-its-metastases
#8
D S Bhullar, J Barriuso, S Mullamitha, M P Saunders, S T O'Dwyer, O Aziz
BACKGROUND: The use of biomarkers to target anti-EGFR treatments for metastatic colorectal cancer (CRC) is well-established, requiring molecular analysis of primary or metastatic biopsies. We aim to review concordance between primary CRC and its metastatic sites. METHODS: A systematic review and meta-analysis of all published studies (1991-2018) reporting on biomarker concordance between primary CRC and its metastatic site(s) was undertaken according to PRISMA guidelines using several medical databases...
February 4, 2019: EBioMedicine
https://read.qxmd.com/read/30710095/colitis-associated-colorectal-adenocarcinomas-are-frequently-associated-with-non-intestinal-mucin-profiles-and-loss-of-satb2-expression
#9
Mai Iwaya, Hiroyoshi Ota, Yoko Tateishi, Tomoyuki Nakajima, Robert Riddell, James R Conner
The special AT-rich sequence binding protein 2 (SATB2) is a sensitive and specific diagnostic marker for colorectal adenocarcinoma and reduced expression of SATB2 is associated with a poor prognosis. Colitis-associated colorectal adenocarcinoma often shows distinct morphologic and molecular phenotypes compared to sporadic cases. However, the SATB2 expression profile in colitis-associated carcinoma has not been defined. We performed immunohistochemistry for SATB2 as well as CDX2, MUC5AC, MUC6 and mismatch repair proteins on 60 consecutive colitis-associated carcinomas from 58 inflammatory bowel disease patients and compared the expression profile to a control group of 32 sporadic colorectal carcinomas...
February 1, 2019: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
https://read.qxmd.com/read/30706857/a-study-of-morphological-prognostic-factors-in-colorectal-cancer-and-survival-analysis
#10
S Poornakala, N S Prema
Context: Globally, colorectal cancer (CRC) is one of the leading causes of cancer death. Many Asian countries experience an increasing incidence of CRC due to changes in diet and lifestyle. Many pathological prognostic factors other than the tumor-node-metastasis (TNM) staging reflect the biological behavior of tumor tissue and influence the treatment and survival. Aims: The aim is to evaluate: (1) Various morphological prognostic factors of colorectal cancer, (2) the correlation of the prognostic factors with survival, and (3) the prognostic factors with independent prognostic significance...
January 2019: Indian Journal of Pathology & Microbiology
https://read.qxmd.com/read/30706852/tumor-budding-in-laryngeal-carcinoma
#11
Sumeyye Ekmekci, Ulku Kucuk, Seda Kokkoz, Ebru Cakir, Murat Gumussoy
Background: Tumor budding was defined as a single cancer cell or a cluster of fewer than five cancer cells in the stroma of the invasive tumor margin. It has been suggested as a prognostic factor in various cancers, such as esophageal, lung, colorectal, and endometrial. There are only a few studies about the prognostic signifi cance of tumor budding in laryngeal carcinomas. Materials and Methods: A total of 81 patients with laryngeal carcinoma diagnosed between 2011 and 2016 and treated by partial or total laryngectomy were evaluated...
January 2019: Indian Journal of Pathology & Microbiology
https://read.qxmd.com/read/30703796/-a-single-center-retrospective-study-on-surgical-efficacy-of-t3nxm0-middle-low-rectal-cancer-without-neoadjuvant-therapy
#12
Peng Liu, Zheng Lou, Zubing Mei, Xianhua Gao, Liqiang Hao, Lianjie Liu, Haifeng Gong, Ronggui Meng, Enda Yu, Hantao Wang, Hao Wang, Wei Zhang
OBJECTIVE: To investigate the surgical efficacy and prognostic factors of T3NxM0 middle-low rectal cancer without neoadjuvant therapy. METHODS: Clinical data of patients with middle-low rectal cancer undergoing TME surgery with T3NxM0 confirmed by postoperative pathology at Colorectal Surgery Department of Changhai Hospital from January 2008 to December 2010 were analyzed retrospectively. INCLUSION CRITERIA: (1)no preoperative neoadjuvant chemoradiotherapy (nCRT); (2) complete preoperative evaluation, including medical history, preoperative colonoscopy or digital examination, blood tumor marker examination, and imaging examination; (3) distance between tumor lower margin and anal verge was ≤ 10 cm; (4) negative circumferential resection margin (CRM-)...
January 25, 2019: Zhonghua Wei Chang Wai Ke za Zhi, Chinese Journal of Gastrointestinal Surgery
https://read.qxmd.com/read/30694787/the-embryonic-stem-cell-specific-transcription-factor-zfp57-promotes-liver-metastasis-of-colorectal-cancer
#13
Yasuhiro Shoji, Hiroyuki Takamura, Itasu Ninomiya, Sachio Fushida, Yuhki Tada, Takashi Yokota, Tetsuo Ohta, Hiroshi Koide
BACKGROUND: The embryonic stem cell-specific transcription factor, ZFP57, has been shown to play an important role in tumor formation. In this study, we examined if ZFP57 is involved in colorectal cancer metastasis. MATERIALS AND METHODS: First, we used colorectal cancer cell lines to perform in vivo metastatic experiments with nude mice. Next, we carried out immunohistochemical analysis of clinical specimens of colorectal cancers. RESULTS: In liver metastatic experiments using human colorectal cancer HT29 and HCT116 cells, liver polymetastases occurred at high frequency in ZFP57-overexpressing HT29 and HCT116 cells, whereas both control cells only resulted in oligometastases...
January 21, 2019: Journal of Surgical Research
https://read.qxmd.com/read/30693389/the-oncological-and-surgical-safety-of-robot-assisted-surgery-in-colorectal-cancer-outcomes-of-a-longitudinal-prospective-cohort-study
#14
F Polat, L H Willems, K Dogan, C Rosman
BACKGROUND: Colorectal cancer is one of the most common cancers worldwide. Laparoscopic colorectal surgery (LCRS) is a frequently used modality. A new development in minimally invasive surgery is robot-assisted colorectal surgery (RACRS). METHODS: Prospectively collected data of 378 consecutive patients who underwent RACRS or LCRS for stage I-III colorectal cancer from Dec 2014 to Oct 2017 were analyzed. Primary outcome was oncological outcome (radical margins, number of retrieved lymph nodes, locoregional recurrence)...
January 28, 2019: Surgical Endoscopy
https://read.qxmd.com/read/30692495/-three-long-surviving-cases-of-recurrent-rectal-carcinomas-treated-non-surgically-and-cured
#15
Yoji Nishimura, Shinsuke Kazama, Yusuke Nishizawa, Hiroaki Ishii, Michitoshi Takano, Hiroyuki Anzai, Yuzuru Ito, Yoshiyuki Kawashima, Hirohiko Sakamoto
Few cases of recurrent colorectal carcinomas were treated non-surgically and cured. Here, we report 3 such cases. Case No. 1 was of a 66-year-old woman, who underwent ISR for very low rectal cancer. Her disease Stage was tub2, T2N0M0. Two years and 6 months later, she developed intrapelvic recurrence involving sacral bones(S1-S3). Radiotherapy of 50 Gy followed by mFOLFOX6 with bevacizumab was administered for a year. She has been cancer-free for 6 years. Case No. 2 was of a 47-year-old man who underwent preoperative CRT of 40 Gy with 5-FU plus Leucovorin, and LAR was performed for very low rectal cancer...
December 2018: Gan to Kagaku Ryoho. Cancer & Chemotherapy
https://read.qxmd.com/read/30692351/-a-case-of-metastasis-of-ascending-colon-cancer-to-the-small-intestine-that-was-diagnosed-based-on-ileus
#16
Kei Furuya, Masahiro Kitahara, Junya Kondo, Yoshinari Maeda, Hideaki Somura, Yukiko Nagashima, Noboru Yahara, Toshihiro Abe, Hiroto Hayashi
A 69-year-old man was administered an ileus tube for ileus by ascending colon cancer. The next day, he underwent right hemicolectomy with D3 lymph node dissection for perforative peritonitis due to ascending colon cancer. The pathological diagnosis was A, type 2, muc>tub1, pT3, pN0. M0, pStageⅡ. He received 5 courses of UFT/Leucovorin(LV)chemotherapy. Two years later, he was hospitalized for ileus. He underwent surgery. The peritoneal dissemination was absent in the surgical findings. We resected a small intestinal tumor from the oral side of anastomosis...
December 2018: Gan to Kagaku Ryoho. Cancer & Chemotherapy
https://read.qxmd.com/read/30684972/rrbp1-overexpression-is-associated-with-progression-and-prognosis-in-endometrial-endometrioid-adenocarcinoma
#17
Shuang Liu, Mu Lin, Hongying Ji, Jing Ding, Jiaqi Zhu, Rong Ma, Fanling Meng
BACKGROUND: Currently, ribosome-binding protein 1 (RRBP1) is considered to be a novel oncogene that is overexpressed in colorectal cancer, lung cancer, mammary cancer, esophageal cancer and other carcinomas. However, the relationship between RRBP1 and endometrioid-type endometrial carcinoma (EC) remains unknown. Our purpose is to explore the function of RRBP1 in endometrioid-type endometrial carcinoma. METHODS: We investigated the expression of RRBP1 protein by immunohistochemistry on paraffin-embedded surgical specimens from one hundred thirty patients with endometrioid-type endometrial carcinoma...
January 26, 2019: Diagnostic Pathology
https://read.qxmd.com/read/30675293/expression-of-mir-21-and-mir-138-in-colon-cancer-and-its-effect-on-cell-proliferation-and-prognosis
#18
Changxuan You, Liming Jin, Qi Xu, Bo Shen, Xuelong Jiao, Xuewu Huang
Effect of miR-21 and miR-138 on the proliferation of colon cancer cells and their association with prognosis were investigated. Expression levels of miR-21 and miR-138 in colorectal cancer and normal adjacent tissues were compared. Differential expression of miR-21 and miR-138 in colon cancer tissues with different clinicopathological features were analyzed. miR-21 and miR-138 expression vectors were established and transfected into cells of colon cancer cell line SW480. Methyl thiazolyl tetrazolium (MTT) assay was used to detect the proliferation of SW480 cells...
February 2019: Oncology Letters
https://read.qxmd.com/read/30674873/glutaminase-1-expression-in-colorectal-cancer-cells-is-induced-by-hypoxia-and-required-for-tumor-growth-invasion-and-metastatic-colonization
#19
Lisha Xiang, Jun Mou, Bin Shao, Yuquan Wei, Houjie Liang, Naoharu Takano, Gregg L Semenza, Ganfeng Xie
Cancer cells re-program their metabolic machinery to meet the requirements of malignant transformation and progression. Glutaminase 1 (GLS1) was traditionally known as a mitochondrial enzyme that hydrolyzes glutamine into glutamate and fuels rapid proliferation of cancer cells. However, emerging evidence has now revealed that GLS1 might be a novel oncogene involved in tumorigenesis and progression of human cancers. In this study, we sought to determine whether GLS1 implicated in invasion and metastasis of colorectal carcinoma, and its underlying molecular mechanism...
January 17, 2019: Cell Death & Disease
https://read.qxmd.com/read/30664278/intramucosal-colorectal-carcinoma-with-lymphovascular-invasion-clinicopathological-characteristics-of-9-cases
#20
Hirotsugu Hashimoto, Hajime Horiuchi, Atsushi Kurata, Hiroyuki Kikuchi, Rikiya Okuyama, Genki Usui, Yoshio Masuda, Masahiko Kuroda, Shigeru Inoue, Kaoru Furushima, Nobuyuki Matsuhashi, Yasushi Harihara, Teppei Morikawa
AIMS: Recent studies have provided the concept of invasive intramucosal colorectal carcinoma (CRC), and a case of intramucosal CRC with lymphatic invasion was reported; however, the characteristics of such cases and the risk of lymph node metastasis have never been investigated. Therefore, we aimed to assess the pathological characteristics of intramucosal CRCs with lymphovascular invasion as well as the possibility of lymph node metastasis as an indication for additional surgery. METHODS AND RESULTS: To delineate the histological features of intramucosal CRCs with lymphovascular invasion, we analyzed several histological features and compared their incidence among 9 such cases, as well as 20 other cases of intramucosal CRCs without lymphovascular invasion...
January 21, 2019: Histopathology
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