232,631 results match your criteria Colorectal Tumors

Physiological and pathological functions of βB2-crystallins in multiple organs: a systematic review.

Aging (Albany NY) 2021 Jun 11;13. Epub 2021 Jun 11.

Department of Obstetrics and Gynecology, Changhai Hospital, Naval Military Medical University, Yangpu, Shanghai 200433, China.

Crystallins, the major constituent proteins of mammalian lenses, are significant not only for the maintenance of eye lens stability, transparency, and refraction, but also fulfill various physiopathological functions in extraocular tissues. βB2-crystallin, for example, is a multifunctional protein expressed in the human retina, brain, testis, ovary, and multiple tumors. Mutations in the βB2 crystallin gene or denaturation of βB2-crystallin protein are associated with cataracts, ocular pathologies, and psychiatric disorders. Read More

View Article and Full-Text PDF

Overexpression of dopamine receptor D2 promotes colorectal cancer progression by activating the β-catenin/ZEB1 axis.

Cancer Sci 2021 Jun 12. Epub 2021 Jun 12.

Laboratory of Radiation Exposure & Therapeutics, National Radiation Emergency Medical Center, Seoul, Korea.

Colorectal cancer (CRC) is a recurring cancer that is often resistant to conventional therapies and therefore requires the development of molecular-based therapeutic approaches. Dopamine receptor D2 (DRD2) is associated with the growth of many types of tumors, but its oncogenic role in CRC is unclear. Here, we observed that elevated DRD2 expression was associated with a poor survival rate among patients with CRC. Read More

View Article and Full-Text PDF

Patient Reported Traditional Chinese Medicine Spleen Deficiency Syndrome (TCM-SDS) Scale for Colorectal Cancer: Development and Validation in China.

Integr Cancer Ther 2021 Jan-Dec;20:15347354211020105

China Academy of Chinese Medical Sciences, Xiyuan Hospital, Haidian District, Beijing, P.R. China.

Introduction: Spleen Deficiency Syndrome (SDS) is recognized as one of the most common Traditional Chinse Medicine (TCM) syndromes in patients with colorectal cancer (CRC). However so far there is no existing patient-reported outcome (PRO) to evaluate SDS. Our study aimed to develop and validate a PRO TCM-SDS scale for CRC in China. Read More

View Article and Full-Text PDF

Bleeding complications in patients with gastrointestinal cancer and atrial fibrillation treated with oral anticoagulants.

Cancer Med 2021 Jun 11. Epub 2021 Jun 11.

Unit for Thrombosis and Drug Research, Department of Cardiology, Aalborg University Hospital, Aalborg, Denmark.

Background: Direct oral anticoagulants (DOACs) may increase the risk of gastrointestinal (GI) bleeding in patients with atrial fibrillation (AF) and GI cancer compared with vitamin K antagonists (VKA).

Methods: We conducted a Danish nationwide cohort study comparing the bleeding risk associated with DOAC versus VKA in patients with AF and GI cancer. We calculated crude bleeding rates per 100 person-years (PYs) for GI and major bleeding. Read More

View Article and Full-Text PDF

Rectosigmoid-Junction Squamous Cell Carcinoma With pMMR/MSS Achieved a Partial Response Following PD-1 Blockade Combined With Chemotherapy: A Case Report.

Front Oncol 2021 25;11:596342. Epub 2021 May 25.

Department of Internal Medicine-Oncology, Qingdao Tumor Hospital, The Second Affiliated Hospital of Medical College of Qingdao University, Qingdao, China.

Colorectal squamous cell carcinoma (SCC) is extremely rare and associated with a poor prognosis. And the pMMR/MSS colorectal cancer is related to a limited response to programmed death ligand-1 (PD-1) blockade monotherapy. However, the clinical activity of PD-1 blockade monotherapy or combination therapy in colorectal SCC is unknown. Read More

View Article and Full-Text PDF

Colorectal Carcinoma Affected Patients Are Significantly Poor Responders Against the Oncogenic JC Polyomavirus.

Front Immunol 2021 25;12:632129. Epub 2021 May 25.

Department of Medical Sciences, School of Medicine, University of Ferrara, Ferrara, Italy.

Background: Many investigations reported the association between human tumors and JCPyV, a polyomavirus with oncogenic potential. The association has been supported by studies that found JCPyV footprints in CRC and gliomas of different types. Indeed, JCPyV footprints including its nucleic acids and Tag oncoprotein have been revealed in CRC tissues. Read More

View Article and Full-Text PDF

Lactobacillus rhamnosus GG orchestrates an anti-tumor immune response.

Cell Mol Gastroenterol Hepatol 2021 Jun 7. Epub 2021 Jun 7.

Division of Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, Emory University School of Medicine, Atlanta GA, 30322; Emory Microbiome Research Center, Emory University School of Medicine, Atlanta GA, 30322. Electronic address:

Background And Aims: In colorectal cancer, about 95% of patients are refractory to immunotherapy due to low anti-tumor immune responses. Therefore, these is an exigent need to develop treatments that increase anti-tumor immune responses and decrease tumor burden to enhance immunotherapy.

Methods: The gut microbiome has been described as a master modulator of immune responses. Read More

View Article and Full-Text PDF

Introduction of a Handmade Vacuum-Assisted Sponge Drain for the Treatment of Anastomotic Leakage After Low Anterior Rectal Resection.

Ann Coloproctol 2021 Jun 10. Epub 2021 Jun 10.

Disivion of Colorectal Surgery, Department of Surgery, Imam Khomeini Hospital, Tehran University of Medical Sciences, Tehran, Iran.

Purpose: Anastomotic leakage, a known major postoperative complication, potentially leads to readmission, reoperation, and increased mortality rates in patients, such as rectal cancer patients following a low anterior resection (LAR). Currently, vacuum-assisted closure, as featured by B-Braun (B-Braun Medical B.V. Read More

View Article and Full-Text PDF

Feasibility and Outcomes of Multivisceral Resection in Locally Advanced Colorectal Cancer: Experience of a Tertiary Cancer Center in North-East India.

Ann Coloproctol 2021 Jun 10. Epub 2021 Jun 10.

Department of Surgical Oncology, Dr. B. Borooah Cancer Institute, Guwahati, India.

Purpose: Locally advanced colorectal cancer may require an en bloc resection of surrounding organs or structures to achieve complete tumor removal. This decision must weigh the risk of complications of multivisceral resection against the potential survival benefit. The purpose of this study is to review a single-center experience of feasibility of en bloc multivisceral resections for locally advanced colorectal carcinoma and to examine the effect of surgical experience on immediate outcome and rate of R0 resections. Read More

View Article and Full-Text PDF

Beyond Microsatellite Instability: Evolving Strategies Integrating Immunotherapy for Microsatellite Stable Colorectal Cancer.

Curr Treat Options Oncol 2021 Jun 10;22(8):69. Epub 2021 Jun 10.

Clinical Oncology, Università Politecnica delle Marche, AOU Ospedali Riuniti, Via Conca 71, 60126, Ancona, Italy.

Opinion Statement: Advanced colorectal cancer (CRC) is a heterogeneous disease, characterized by several subtypes with distinctive genetic and epigenetic patterns. During the last years, immune checkpoint inhibitors (ICIs) have revamped the standard of care of several tumors such as non-small cell lung cancer and melanoma, highlighting the role of immune cells in tumor microenvironment (TME) and their impact on cancer progression and treatment efficacy. An "immunoscore," based on the percentage of two lymphocyte populations both at tumor core and invasive margin, has been shown to improve prediction of treatment outcome when added to UICC-TNM classification. Read More

View Article and Full-Text PDF

LDH-A negatively regualtes dMMR in colorectal cancer.

Cancer Sci 2021 Jun 10. Epub 2021 Jun 10.

Department of Medical Oncology, Huai'an Hospital Affiliated with Xuzhou Medical University, Huai'an, Jiangsu Province, China.

Despite immune checkpoint inhibitors(ICIs) have achieved unprecedented success in dMMR tumours, pMMR tumors accounting for 85% of colorectal cancer(CRC) cases remains unresponsive. Lactate dehydrogenase A(LDH-A) is the rate-limiting enzyme that catalyses the transformation of pyruvate to lactate in the process of glycolysis. We investigate the relationship between LDH-A and dMMR with the purpose of exploring the treatment strategy for pMMR CRC patients . Read More

View Article and Full-Text PDF

miR‑483 promotes the development of colorectal cancer by inhibiting the expression level of EI24.

Mol Med Rep 2021 Aug 10;24(2). Epub 2021 Jun 10.

Department of Gastrointestinal Surgery, Xijing Hospital of Digestive Diseases, The Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China.

MicroRNAs (miRs) serve an important role in cell differentiation, proliferation and apoptosis by negatively regulating gene expression at the transcriptional or post‑transcriptional level. EI24 autophagy associated transmembrane protein (EI24) is a tumor suppressor gene that serves an important role in the occurrence and development of digestive system tumors. However, little is known regarding the relationship between EI24 and the prognosis of patients with colorectal cancer (CRC). Read More

View Article and Full-Text PDF

Long Non-coding RNA EBLN3P Regulates UHMK1 Expression by Sponging miR-323a-3p and Promotes Colorectal Cancer Progression.

Front Med (Lausanne) 2021 24;8:651600. Epub 2021 May 24.

Department of Anesthesiology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China.

Growing studies have demonstrated that long non-coding RNA (lncRNA) can act as crucial roles during the progression of various tumors, including colorectal carcinoma (CRC). We aimed to determine lncRNA endogenous bornavirus-like nucleoprotein (EBLN3P) expression in CRC and examine its influence on tumor behaviors of CRC cells. Quantitative real-time polymerase chain reaction was used to determine the expression levels of EBLN3P and miR-323a-3p in CRC tissues and cell lines. Read More

View Article and Full-Text PDF

MSH2-deficient prostate tumours have a distinct immune response and clinical outcome compared to MSH2-deficient colorectal or endometrial cancer.

Prostate Cancer Prostatic Dis 2021 Jun 9. Epub 2021 Jun 9.

Departments of Surgery and Urology, University of Melbourne, Royal Melbourne Hospital, Parkville, VIC, Australia.

Background: Recent publications have shown patients with defects in the DNA mismatch repair (MMR) pathway driven by either MSH2 or MSH6 loss experience a significant increase in the incidence of prostate cancer. Moreover, this increased incidence of prostate cancer is accompanied by rapid disease progression and poor clinical outcomes.

Methods And Results: We show that androgen-receptor activation, a key driver of prostate carcinogenesis, can disrupt the MSH2 gene in prostate cancer. Read More

View Article and Full-Text PDF

Adjuvant properties of IFN-γ and GM-CSF in the scFv6.C4 DNA vaccine against CEA-expressing tumors.

Gene Ther 2021 Jun 9. Epub 2021 Jun 9.

Research Center for Gene Therapy, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, SP, Brazil.

Tumor-associated carcinoembryonic antigen (CEA) is a natural target for vaccines against colorectal cancers. Our previous experience with a DNA vaccine with scFv6.C4, a CEA surrogate, showed a CEA-specific immune response with 40% of tumor-free mice after challenge with B16F10-CEA and 47% with MC38-CEA cells. Read More

View Article and Full-Text PDF

αSMA fibroblasts suppress Lgr5 cancer stem cells and restrain colorectal cancer progression.

Oncogene 2021 Jun 9. Epub 2021 Jun 9.

Metastasis Research Center, Department of Cancer Biology, University of Texas MD Anderson Cancer Center, Houston, TX, USA.

The development and progression of solid tumors is dependent on cancer cell autonomous drivers and the tumor microenvironment (TME). Cancer-associated fibroblasts (CAFs) in the TME possess both tumor-promoting and tumor-restraining functions. In the current study, we interrogated the role of αSMA CAFs in a genetic mouse model of metastatic colorectal cancer (CRC). Read More

View Article and Full-Text PDF

Association between colorectal cancer and Fusobacterium nucleatum and Bacteroides fragilis bacteria in Iranian patients: a preliminary study.

Infect Agent Cancer 2021 Jun 9;16(1):41. Epub 2021 Jun 9.

Department of Microbiology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran.

Background And Aim: Recent studies have proposed that commensal bacteria might be involved in the development and progression of gastrointestinal disorders such as colorectal cancer (CRC). Therefore, in this study, the relative abundance of Fusobacterium nucleatum, Bacteroides fragilis, Streptococcus bovis/gallolyticus, and Enteropathogenic Escherichia coli (EPEC) in CRC tissues, and their association with clinicopathologic characteristics of CRC was investigated in Iranian patients. Moreover, the role of these bacteria in the CRC-associated mutations including PIK3CA, KRAS, and BRAF was studied. Read More

View Article and Full-Text PDF

Identification of DNA methylation biomarkers for risk of liver metastasis in early-stage colorectal cancer.

Clin Epigenetics 2021 Jun 9;13(1):126. Epub 2021 Jun 9.

Department of Pathology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, No. 17 Panjiayuan Nanli, Beijing, 100021, China.

Background: Liver metastases can occur even in CRC patients who underwent curative surgery. While evidence suggested that adjuvant chemotherapy can help to reduce the occurrence of liver metastases for certain patients, it is not a recommended routine as the side effects outweigh the potential benefits, especially in Stage II CRC patients. This study aims to construct a model for predicting liver metastasis risk using differential methylation signals in primary CRC tumors, which can facilitate the decision for adjuvant chemotherapy. Read More

View Article and Full-Text PDF

Does liver cirrhosis affect the surgical outcome of primary colorectal cancer surgery? A meta-analysis.

World J Surg Oncol 2021 Jun 9;19(1):167. Epub 2021 Jun 9.

Department of Gastrointestinal Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China.

Purpose: The purpose of this meta-analysis was to evaluate the effect of liver cirrhosis (LC) on the short-term and long-term surgical outcomes of colorectal cancer (CRC).

Methods: The PubMed, Embase, and Cochrane Library databases were searched from inception to March 23, 2021. The Newcastle-Ottawa Scale (NOS) was used to assess the quality of enrolled studies, and RevMan 5. Read More

View Article and Full-Text PDF

Novel strategy to treat lung metastases: Hybrid therapy involving surgery and radiofrequency ablation.

Thorac Cancer 2021 Jun 9. Epub 2021 Jun 9.

Department of Diagnostic and Interventional Radiology, Aichi Cancer Center Hospital, Nagoya, Japan.

Background: This study was performed to evaluate the clinical outcomes of hybrid treatment involving surgical resection and percutaneous radiofrequency ablation for patients with multiple lung metastases.

Methods: Seventeen patients (6 men, 11 women; median age, 52 years; range, 16-78 years) underwent hybrid treatment involving surgery and radiofrequency ablation to treat multiple lung metastases (median number, 4; range, 2-26) between May 2014 and February 2020. The primary lesions were colorectal carcinoma (n = 9), uterine endometrial carcinoma (n = 3), osteosarcoma (n = 2), renal cell carcinoma (n = 1), glottic carcinoma (n = 1), and fibrolamellar hepatocellular carcinoma (n = 1). Read More

View Article and Full-Text PDF

Dietary trans-fatty acid intake in relation to cancer risk: a systematic review and meta-analysis.

Nutr Rev 2021 Jun;79(7):758-776

Department of Public Health and Primary Care, Ghent University, Ghent, Belgium.

Context: Apart from ruminant fat, trans-fatty acids are produced during the partial hydrogenation of vegetable oils, (eg, in the production of ultraprocessed foods). Harmful cardiovascular effects of trans-fatty acids are already proven, but the link with cancer risk has not yet been summarized.

Objective: A systematic review (following PRISMA guidelines) - including observational studies on the association of trans-fatty acid intake with any cancer risk - was conducted, with no limitations on population types. Read More

View Article and Full-Text PDF

Comparative Analysis and in vitro Experiments of Signatures and Prognostic Value of Immune Checkpoint Genes in Colorectal Cancer.

Onco Targets Ther 2021 31;14:3517-3534. Epub 2021 May 31.

Department of Medical Oncology, The First Hospital of China Medical University, Shenyang, 110001, People's Republic of China.

Purpose: Immune checkpoints, as pivotal regulators of immune escape in cancer, can motivate the emergence of immune checkpoint inhibitors (ICIs). The aim of this study is to identify the expression of the immune checkpoint genes (ICGs) in colorectal cancer (CRC) and to relate their individual as well as combined expression to prognosis and therapeutic effectiveness in CRC.

Methods: RNA expression of 47 ICGs and clinical information of CRC patients were collected from two public databases to elucidate the expression levels and prognostic values of these ICGs in CRC. Read More

View Article and Full-Text PDF

A PROTAC peptide induces durable β-catenin degradation and suppresses Wnt-dependent intestinal cancer.

Cell Discov 2020 Jun 9;6(1):35. Epub 2020 Jun 9.

The State Key Laboratory of Membrane Biology, Tsinghua-Peking Center for Life Sciences, School of Life Sciences, Tsinghua University, 100084, Beijing, China.

Aberrant activation of Wnt/β-catenin signaling has been associated with the onset and progression of many types of tumors and thus β-catenin represents one attractive intracellular target for cancer therapy. Based on the Axin-derived peptide that binds to β-catenin, two stapled peptides SAHPA1 and xStAx were reported to enhance or impair Wnt/β-catenin signaling, respectively. In this study, we designed PROTACs (proteolysis targeting chimeras) by coupling SAHPA1 or xStAx with the VHL ligand to achieve efficient β-catenin degradation. Read More

View Article and Full-Text PDF

An immune-related model based on INHBA, JAG2 and CCL19 to predict the prognoses of colon cancer patients.

Cancer Cell Int 2021 Jun 8;21(1):299. Epub 2021 Jun 8.

Department of Gastrointestinal Surgery, The Second Affiliated Hospital of Chongqing Medical University, No. 288 Tianwen Road, Nanan District, Chongqing, 401336, China.

Background: Colorectal cancer (CRC) is the leading cause of cancer deaths and most common malignant tumors worldwide. Immune-related genes (IRGs) can predict prognoses of patients and the effects of immunotherapy. A series of colon cancer (CCa) samples from The Cancer Genome Atlas (TCGA) were analyzed to provide a new perspective into this field. Read More

View Article and Full-Text PDF

High Diagnostic and Prognostic Value of miRNAs Compared with the Carcinoembryonic Antigen as a Traditional Tumor Marker.

Anticancer Agents Med Chem 2021 Jun 7. Epub 2021 Jun 7.

Bioinformatics Research Group, Mashhad University of Medical Sciences, Mashhad, Iran.

A significant challenge in cancer detection and treatment is early diagnosis and accurate prognosis of the disease that enables effective therapies and interventions to improve the patient's condition. Up to now, many parts of research have tended to focus on the carcinoembryonic antigen (CEA) to detect cancers and estimate the survival rates of patients with multiple cancer types, including colorectal, breast, non-small cell lung, and pancreas cancer. Limited sensitivity and specificity of this traditional tumor marker make it an inappropriate biomarker to diagnose cancer, especially in the early stages, while several lines of research have introduced miRNAs as reliable indicators of tumor initiation, development, and therapy response. Read More

View Article and Full-Text PDF

Modeling adaptive drug resistance of colorectal cancer and therapeutic interventions with tumor spheroids.

Exp Biol Med (Maywood) 2021 Jun 8:15353702211014185. Epub 2021 Jun 8.

Department of Biomedical Engineering, The University of Akron, Akron, OH 44325, USA.

Drug resistance is a major barrier against successful treatments of cancer patients. Various intrinsic mechanisms and adaptive responses of tumor cells to cancer drugs often lead to failure of treatments and tumor relapse. Understanding mechanisms of cancer drug resistance is critical to develop effective treatments with sustained anti-tumor effects. Read More

View Article and Full-Text PDF

Multifunctional Indocyanine Green Applications for Fluorescence-Guided Laparoscopic Colorectal Surgery.

Ann Coloproctol 2021 Jun 9. Epub 2021 Jun 9.

Research Institute of Clinical Medicine of Jeonbuk National University-Biomedical Research Institute of Jeonbuk National University Hospital, Jeonju, Korea.

Indocyanine green (ICG) could be applied for multiple functions such as fluorescent tumor localization, fluorescence lymph node mapping (FLNM), and intraoperative angiography in colorectal cancer surgery. With the near-infrared (NIR) systems, colonoscopic ICG tattooing can be used to define the early colorectal cancer that cannot be easily distinguished through the serosal surface. The lymphatic pathways can be visualized under the NIR system when ICG is injected through the submucosal or subserosal layer around the tumor. Read More

View Article and Full-Text PDF

[Clinical analysis of 9 cases of a novel stent assisted intestinal bypass for preventing anastomotic leakage in laparoscopic assisted radical resection of rectal cancer].

Zhonghua Wai Ke Za Zhi 2021 Jun;59(6):497-501

Department of General Surgery, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou 310020, China.

To examine the safety and effectiveness of a novel stent assisted intestinal bypass for preventing anastomotic leakage in laparoscopic assisted radical resection of rectal cancer. The clinical data of 9 patients with rectal cancer who underwent laparoscopic radical resection and stent assisted intestinal bypass from September 2019 to June 2020 at the Department of Anus & Intestine Surgery, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University were retrospectively analyzed. There were 6 males and 3 females, aged (62. Read More

View Article and Full-Text PDF

Cost-effectiveness analysis of endoscopic resection for colorectal laterally spreading tumors: endoscopic submucosal dissection versus piecemeal endoscopic mucosal resection.

Dig Endosc 2021 Jun 8. Epub 2021 Jun 8.

Endoscopy Division, National Cancer Center Hospital, Tokyo, Japan.

Objectives: The cost-effectiveness of endoscopic submucosal dissection (ESD) and piecemeal endoscopic mucosal resection (pEMR) for colorectal laterally spreading tumors (LSTs) remains unclear. We examined the cost-effectiveness of these procedures for cases of colon/rectal LST-nongranular-type ≥2 cm and LST-granular-mixed-type ≥3 cm.

Methods: We performed a simulation model analysis using parameters based on clinical data from the National Cancer Center Hospital, Tokyo, and previous literature. Read More

View Article and Full-Text PDF

Repeat preoperative endoscopy after regional implementation of electronic synoptic endoscopy reporting: a retrospective comparative study.

Surg Endosc 2021 Jun 8. Epub 2021 Jun 8.

Department of Surgery, Section of General Surgery, University of Manitoba, Winnipeg, MB, Canada.

Background: Repeat preoperative endoscopy is common for patients with colorectal neoplasms. This can result in treatment delays, patient discomfort, and risks of colonoscopy-related complications. Repeat preoperative endoscopy has been attributed to poor communication between endoscopists and surgeons. Read More

View Article and Full-Text PDF