250,716 results match your criteria Colorectal Tumors

Amino acid coordination complex mediates cisplatin entrapment within PEGylated liposome: an implication in colorectal cancer therapy.

Int J Pharm 2022 Jun 21:121946. Epub 2022 Jun 21.

Nanotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran; Department of Pharmaceutical Nanotechnology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran. Electronic address:

Cis-Diaminedichloroplatinum (cisplatin, CDDP) remained among the most widely used anti-cancer agents; however, management of the dose-limiting side effects is still a great hurdle to its therapeutic potential. In the framework of this investigation, novel approach was developed for CDDP encasement within liposome based on the formation of a coordination bond between the platinum (II) atom and a carboxylic group in aspartic acid (AA) and glutamic acid (GA). We have also compared two methods of preparation based on equilibration and conventional lipid film hydration. Read More

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Tumor-Activatable Nanoparticles Target Low-Density Lipoprotein Receptor to Enhance Drug Delivery and Antitumor Efficacy.

Adv Sci (Weinh) 2022 Jun 24:e2201614. Epub 2022 Jun 24.

Department of Chemistry, The University of Chicago, Chicago, IL, 60637, USA.

The binding of plasma proteins to nanomedicines is widely considered detrimental to their delivery to tumors. Here, the design of OxPt/SN38 nanoparticle containing a hydrophilic oxaliplatin (OxPt) prodrug in a coordination polymer core and a hydrophobic cholesterol-conjugated SN38 prodrug on the lipid shell for active tumor targeting is reported. OxPt/SN38 hitchhikes on low-density lipoprotein (LDL) particles, concentrates in tumors via LDL receptor-mediated endocytosis, and selectively releases SN38 and OxPt in acidic, esterase-rich, and reducing tumor microenvironments, leading to 6. Read More

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Increased prevalence of colorectal neoplasia in patients with intraductal papillary mucinous neoplasms.

Therap Adv Gastroenterol 2022 16;15:17562848221104306. Epub 2022 Jun 16.

Department of Gastroenterology, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel.

Background: The association between intraductal papillary mucinous neoplasms (IPMNs) and colorectal cancer (CRC) and polyps is controversial.

Objectives: To compare the prevalence of CRC and colorectal polyps among patients with IPMN and matched average risk individuals.

Methods: A match cross-sectional historical study comparing colonoscopy findings of 310 patients with IPMN cysts who underwent at least one colonoscopy examination from 2004 through 2019, with 310 age- and gender-matched average risk participants who underwent a screening colonoscopy. Read More

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Metastatic Large Cell Neuroendocrine Carcinoma of the Colon: A Case Report.

Cureus 2022 Jun 19;14(6):e26075. Epub 2022 Jun 19.

Department of Internal Medicine, Wayne State University School of Medicine, Rochester Hills, USA.

Colorectal neuroendocrine tumors are rare entities, with large cell neuroendocrine carcinomas occurring less frequently. We report a case of an 83-year-old male who presented with symptoms of intestinal obstruction. A computed tomography scan of the abdomen and pelvis revealed a high-grade large bowel obstruction secondary to an irregular exophytic soft tissue mass within the ascending colon, with extensive metastatic disease. Read More

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[Tc]Tc-iFAP/SPECT Tumor Stroma Imaging: Acquisition and Analysis of Clinical Images in Six Different Cancer Entities.

Pharmaceuticals (Basel) 2022 Jun 9;15(6). Epub 2022 Jun 9.

Department of Radioactive Materials, Instituto Nacional de Investigaciones Nucleares, Ocoyoacac 52750, Mexico.

Fibroblast activation protein (FAP) is highly expressed on the cancer-associated fibroblasts (CAF) of the tumor stroma. Recently, we reported the preclinical evaluation and clinical biokinetics of a novel Tc-labeled FAP inhibitor radioligand ([Tc]Tc-iFAP). This research aimed to evaluate [Tc]Tc-iFAP for the tumor stroma imaging of six different cancerous entities and analyze them from the perspective of stromal heterogeneity. Read More

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No-Code Platform-Based Deep-Learning Models for Prediction of Colorectal Polyp Histology from White-Light Endoscopy Images: Development and Performance Verification.

J Pers Med 2022 Jun 12;12(6). Epub 2022 Jun 12.

Department of Internal Medicine, Inje University Ilsan Paik Hospital, Goyang 10556, Korea.

Background: The authors previously developed deep-learning models for the prediction of colorectal polyp histology (advanced colorectal cancer, early cancer/high-grade dysplasia, tubular adenoma with or without low-grade dysplasia, or non-neoplasm) from endoscopic images. While the model achieved 67.3% internal-test accuracy and 79. Read More

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The Role of ICG in Robot-Assisted Liver Resections.

J Clin Med 2022 Jun 19;11(12). Epub 2022 Jun 19.

Department of General, Abdominal, Thoracic, Transplantation and Pediatric Surgery, University Hospital Schleswig-Holstein, Campus Kiel, Arnold-Heller-Straße 3, 24105 Kiel, Germany.

Introduction: Robotic-assisted liver surgery (RALS) with its known limitations is gaining more importance. The fluorescent dye, indocyanine green (ICG), is a way to overcome some of these limitations. It accumulates in or around hepatic masses. Read More

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Fusions in 1113 Solid Tumors in a Single Institution.

Diagnostics (Basel) 2022 Jun 13;12(6). Epub 2022 Jun 13.

Laboratory of Theranotics and Molecular Pathology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06351, Korea.

Most fusions occur at very low frequencies in various common cancers. Recent recommendations on testing recommend immunohistochemistry (IHC) as the initial test for tumor types with a low frequency of fusions. This study investigated the accuracy of an IHC assay to detect fusions and characterize the clinicopathological and molecular features of -rearranged tumors. Read More

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Metastases to the Thyroid Gland: What Can We Do?

Cancers (Basel) 2022 Jun 19;14(12). Epub 2022 Jun 19.

Department of Thyroid Surgery, The First Hospital of China Medical University, 155 Nanjing Bei Street, Shenyang 110001, China.

Metastases to the thyroid gland arise from other malignant tumors such as renal cell carcinoma, colorectal cancer, lung cancer, and breast cancer. In clinical practice, the incidence is low, and the symptoms are not specific, so it is often missed and misdiagnosed. It is finally diagnosed via the comprehensive application of many diagnostic methods, such as ultrasound, fine-needle aspiration biopsy, and immunohistochemistry analysis. Read More

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Safety and Efficacy of Bevacizumab in Cancer Patients with Inflammatory Bowel Disease.

Cancers (Basel) 2022 Jun 13;14(12). Epub 2022 Jun 13.

Department of Cancer Medicine, Gustave Roussy Cancer Institute, 94805 Villejuif, France.

Background: The safety of bevacizumab in combination with chemotherapy in patients with inflammatory bowel disease (IBD) and digestive and nondigestive cancers is poorly documented.

Methods: We retrospectively evaluated patient records of all adult cancer patients with IBD at our institution from April 2007 to May 2016 with an update in November 2019.

Results: Twenty-seven patients with a history of IBD (Crohn's disease, = 22; ulcerative colitis, = 5) who were treated with bevacizumab and chemotherapy for metastatic solid tumors were identified. Read More

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Localized Small Bowel Adenocarcinoma Management: Evidence Summary.

Cancers (Basel) 2022 Jun 11;14(12). Epub 2022 Jun 11.

Department of Gastroenterology and Digestive Oncology, European Georges Pompidou Hospital, AP-HP Centre, 75015 Paris, France.

Small bowel cancers are rare diseases whose prognosis is poorer than that of colon cancers. Due to disease rarity, there is little data on small bowel adenocarcinoma (SBA) treatment, and most recommendations come from expert agreements or analogies to the management of colon cancer. Although relatively high rates of local recurrence are observed for duodenal malignancies, distant metastatic relapse remains common and requires adjuvant systemic therapy. Read More

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A Fraction of CD8+ T Cells from Colorectal Liver Metastases Preferentially Repopulate Autologous Patient-Derived Xenograft Tumors as Tissue-Resident Memory T Cells.

Cancers (Basel) 2022 Jun 10;14(12). Epub 2022 Jun 10.

Department of Microbiology and Immunology, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, 40530 Gothenburg, Sweden.

The diversity of T cells in the human liver may reflect the composition of TILs in CRLM. Our ex vivo characterization of CRLM vs. adjacent liver tissue detected CD103+CD39+CD8+ T cells predominantly in CRLM, which prompted further assessments. Read More

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Tumor-Suppressive Effect of Metformin via the Regulation of M2 Macrophages and Myeloid-Derived Suppressor Cells in the Tumor Microenvironment of Colorectal Cancer.

Cancers (Basel) 2022 Jun 10;14(12). Epub 2022 Jun 10.

Institute of Gastroenterology, Yonsei University College of Medicine, Seoul 03722, Korea.

Myeloid-derived suppressor cells (MDSCs) and M2 macrophages in the tumor microenvironment contribute to tumor progression by inducing immune tolerance to tumor antigens and cancer cells. Metformin, one of the most common diabetes drugs, has shown anti-inflammatory and anti-tumor effects. However, the effects of metformin on inflammatory cells of the tumor microenvironment and its underlying mechanisms remain unclarified. Read More

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Gene Silencing Is a CpG Island Methylator Phenotype-Associated Factor That Predisposes Colon Cancer Cells to Irinotecan and Olaparib.

Cancers (Basel) 2022 Jun 9;14(12). Epub 2022 Jun 9.

Woolcock Institute of Medical Research, 431 Glebe Point Road, Glebe, Sydney, NSW 2037, Australia.

Chemotherapy is a mainstay of colorectal cancer treatment, and often involves a combination drug regime. CpG island methylator phenotype (CIMP)-positive tumors are potentially more responsive to the topoisomerase-inhibitor irinotecan. The mechanistic basis of the increased sensitivity of CIMP cancers to irinotecan is poorly understood. Read More

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MACC1-Induced Collective Migration Is Promoted by Proliferation Rather Than Single Cell Biomechanics.

Cancers (Basel) 2022 Jun 9;14(12). Epub 2022 Jun 9.

Department of Anatomy and Cell Biology, Martin Luther University Halle-Wittenberg, Grosse Steinstrasse 52, D-06108 Halle (Saale), Germany.

Metastasis-associated in colon cancer 1 (MACC1) is a marker for metastasis, tumor cell migration, and increased proliferation in colorectal cancer (CRC). Tumors with high MACC1 expression show a worse prognosis and higher invasion into neighboring structures. Yet, many facets of the pro-migratory effects are not fully understood. Read More

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Somatic Mutations in Exon 7 of the Gene in Index Colorectal Lesions Are Associated with the Early Occurrence of Metachronous Adenoma.

Cancers (Basel) 2022 Jun 7;14(12). Epub 2022 Jun 7.

Centre for Applied Genomics of Solid Tumors (CEGES), Genomac Research Institute, Drnovská 1112/60, 161 00 Prague, Czech Republic.

(1) Background: this prospective study was focused on detailed analysis of the mutation heterogeneity in colorectal lesions removed during baseline (index) colonoscopy to identify patients at high risk of early occurrence of metachronous adenomas. (2) Methods: a total of 120 patients after endoscopic therapy of advanced colorectal neoplasia size ≥10 mm (index lesion) with subsequent surveillance colonoscopy after 10-18 months were included. In total, 143 index lesions and 84 synchronous lesions in paraffin blocks were divided into up to 30 samples. Read More

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Prognostic value of disease-free interval in colorectal cancer: Is it time?

Eur J Surg Oncol 2022 Jun 3. Epub 2022 Jun 3.

Department of Surgery, Universitätsmedizin Mannheim, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany. Electronic address:

Background: Previous studies have outlined that the onset of synchronous colorectal cancer (CRC) metastases is associated with poor overall survival (OS) compared to patients with metachronous disease. The aim of this study was to evaluate the association of disease-free interval with newly diagnosed CRC scheduled for primary tumor resection.

Methods: Patients who underwent primary CRC resection over an 18-year period were identified from a prospective database at a tertiary-care hospital. Read More

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The Role of PPAR-gamma C161T Polymorphism in Colorectal Cancer Susceptibility.

In Vivo 2022 Jul-Aug;36(4):1911-1915

NPO Treatment Center for Peritoneal Disseminated Diseases (NPO HIPEC ISTANBUL), Istanbul, Turkey

Background/aim: This study aimed to determine the role of the peroxisome proliferator-activated receptor-gamma (PPARg) C161T genotype and allele frequencies in predisposition to colorectal cancer (CRC).

Patients And Methods: PPARg C161T (His447His; rs3856806) gene polymorphisms were determined by polymerase chain reaction-restriction fragment length polymorphism analysis in patients with CRC (n=101) and controls (n=238).

Results: The T161 allele (CT+TT genotypes) of PPARg C161T polymorphism was associated with CRC development (p<0. Read More

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Expression of the Stem Cell Marker ABCB5 in Normal and Tumor Tissues.

In Vivo 2022 Jul-Aug;36(4):1651-1666

Department of Pharmaceutical Biology, Institute of Pharmaceutical and Biomedical Sciences, Johannes Gutenberg University, Mainz, Germany;

Background/aim: The ATP-binding cassette subfamily B member 5 (ABCB5) transporter plays a pivotal role in melanocyte progenitor cell fusion and has been identified as a tumor-initiating cell marker. In this study, we determined ABCB5 expression in normal tissues among various species, i.e. Read More

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Disparities in Biomarker Testing and Clinical Trial Enrollment Among Patients With Lung, Breast, or Colorectal Cancers in the United States.

JCO Precis Oncol 2022 Jun;6:e2100427

University Hospitals Cleveland Medical Center, Case Comprehensive Cancer Center, Cleveland, OH.

Purpose: Comprehensive tumor biomarker testing is a fundamental step in the selection of highly effective molecularly driven therapies for a variety of solid tumors. The primary objective of this study was to examine racial differences in biomarker testing and clinical trial participation in the United States using a real-world database.

Methods: Patients in a real-world deidentified database diagnosed with advanced/metastatic non-small-cell lung cancer (NSCLC), metastatic colorectal cancer (CRC), or metastatic breast cancer were eligible. Read More

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Atypical Cognitive Impairment and Recovery in Two Colorectal Cancer Patients.

Tomography 2022 Jun 9;8(3):1503-1508. Epub 2022 Jun 9.

Department of Neurology, Jeonbuk National University Medical School and Hospital, 20 Geonji-ro, Deokjin-gu, Jeonju 54907, Korea.

Cognitive impairment in cancer patients can be caused by various factors; in approximately 30% of cancer patients, the symptoms appear before starting treatment. Paraneoplastic limbic encephalitis (PLE) is a rare disease associated with an autoimmune response, and is characterized by memory loss, depression, and personality changes; it is one of the potential causes of cognitive dysfunction in cancer patients. Two patients were previously diagnosed with mild cognitive impairment and maintained clinical stability; after suffering a rapid change in personality and sudden cognitive decline, colorectal cancer was diagnosed within a few months. Read More

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Antiangiogenic Drug-Induced Proteinuria as a Prognostic Factor in Metastatic Colorectal Cancer.

Curr Oncol 2022 May 31;29(6):3996-4011. Epub 2022 May 31.

Immunology Department, "Grigore T. Popa" University of Medicine and Pharmacy, 700115 Iasi, Romania.

Treatment with bevacizumab is known to cause adverse events such as proteinuria and hypertension, amongst others. However, while bevacizumab-induced hypertension has been linked to increased overall survival (OS), data on proteinuria are controversial. We performed a retrospective analysis to observe the influence of adverse events developed during treatment with bevacizumab and chemotherapy on the OS in patients with metastatic colorectal cancer (mCRC). Read More

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Indication of emergency colonoscopy after colorectal endoscopic submucosal dissection: a proposal of hematochezia scale.

J Gastroenterol Hepatol 2022 Jun 23. Epub 2022 Jun 23.

Department of Gastrointestinal Oncology, Osaka International Cancer Institute, Osaka, Japan.

Background And Aim: Hematochezia is a major adverse event associated with colorectal endoscopic submucosal dissection (ESD). This study aimed to distinguish between hematochezia that required endoscopic hemostasis and hematochezia that required no hemostasis.

Methods: This retrospective study included consecutive patients who underwent ESD for colorectal tumors at the Osaka International Cancer Institute between September 2017 and August 2020. Read More

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Lipid metabolism-related lncRNA SLC25A21-AS1 promotes the progression of oesophageal squamous cell carcinoma by regulating the NPM1/c-Myc axis and SLC25A21 expression.

Clin Transl Med 2022 Jun;12(6):e944

Department of Thoracic Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.

Background: Obesity alters metabolic microenvironment and is thus associated with several tumours. The aim of the present study was to investigate the role, molecular mechanism of action, and potential clinical value of lipid metabolism-related long non-coding RNA (lncRNA) SLC25A21-AS1 in oesophageal squamous cell carcinoma (ESCC).

Methods: A high-fat diets (HFDs)-induced obesity nude mouse model was established, and targeted metabolomics analysis was used to identify critical medium-long chain fatty acids influencing the growth of ESCC cells. Read More

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Homologous Recombination Pathway Alternation Predicts Prognosis of Colorectal Cancer With Chemotherapy.

Front Pharmacol 2022 6;13:920939. Epub 2022 Jun 6.

Department of Medical Oncology, Guangxi Medical University Cancer Hospital, Nanning, China.

Chemotherapy is the basic treatment for colorectal cancer (CRC). However, colorectal cancer cells often develop resistance to chemotherapy drugs, leading to recurrence and poor prognosis. More and more studies have shown that the Homologous recombination (HR) pathway plays an important role in chemotherapy treatment for tumors. Read More

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Prevalence of Epstein-Barr Virus Infection and Mismatch Repair Protein Deficiency and the Correlation of Immune Markers in Tibetan Patients with Gastric Cancer.

Biomed Res Int 2022 13;2022:2684065. Epub 2022 Jun 13.

Department of Pathology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.

Background: Gastric cancer (GC) is a major cause of cancer-related death in China. Immunotherapies based on PD-1/PD-L1 inhibitors have improved the survival of some patients with GC. Epstein-Barr virus (EBV) infection, mismatch repair (MMR) deficiency, and tumor immune microenvironment (TIME) markers (such as CD3, CD8, and PD-L1) may help to identify specific patients who will respond to PD-1/PD-L1 inhibitors. Read More

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Pediatric Colorectal Carcinoma: A Series of Seven Cases.

J Indian Assoc Pediatr Surg 2022 May-Jun;27(3):304-308. Epub 2022 May 12.

Department of Pediatric Surgery, Chacha Nehru Bal Chiktsalaya, Delhi, India.

Introduction: Colorectal carcinoma (CRC) accounts for <1% of all the neoplasms of children. Unfavorable histology and delayed diagnosis often result in poor outcome. This study aimed to investigate the clinical characteristic and prognosis of pediatric patients with CRC. Read More

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Long-term outcomes after extra-levator versus conventional abdominoperineal excision for low rectal cancer.

BMC Surg 2022 Jun 22;22(1):242. Epub 2022 Jun 22.

Department of General Surgery, Beijing Chaoyang Hosptial, Capital Medical University, No. 8 Gongtinan Lu, Chaoyang District, Beijing, People's Republic of China.

Purpose: Extralevator (ELAPE) and abdominoperineal excision (APE) are two major surgical approaches for low rectal cancer patients. Although excellent short-term efficacy is achieved in patients undergoing ELAPE, the long-term benefits have not been established. In this study we evaluated the safety, pathological and survival outcomes in rectal cancer patients who underwent ELAPE and APE. Read More

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The emerging role of neutrophilic extracellular traps in intestinal disease.

Gut Pathog 2022 Jun 22;14(1):27. Epub 2022 Jun 22.

The First Clinical Medical College of Lanzhou University, Lanzhou, 730000, Gansu, People's Republic of China.

Neutrophil extracellular traps (NETs) are extracellular reticular fibrillar structures composed of DNA, histones, granulins and cytoplasmic proteins that are delivered externally by neutrophils in response to stimulation with various types of microorganisms, cytokines and host molecules, etc. NET formation has been extensively demonstrated to trap, immobilize, inactivate and kill invading microorganisms and acts as a form of innate response against pathogenic invasion. However, NETs are a double-edged sword. Read More

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Identification of hub genes and pathways in colitis-associated colon cancer by integrated bioinformatic analysis.

BMC Genom Data 2022 Jun 22;23(1):48. Epub 2022 Jun 22.

Department of Oncology, Jining Hospital of Traditional Chinese Medicine, 3 Huancheng North Road, Jining, 272000, Shandong Province, China.

Background: Colitis-associated colon cancer (CAC) patients have a younger age of onset, more multiple lesions and invasive tumors than sporadic colon cancer patients. Early detection of CAC using endoscopy is challenging, and the incidence of septal colon cancer remains high. Therefore, identifying biomarkers that can predict the tumorigenesis of CAC is in urgent need. Read More

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