Background & Aims: Galectin 3 is a beta-galactoside-binding protein whose expression has been correlated with advanced tumor stage in the colon, but direct evidence for a role in metastasis is lacking. The current study was designed to more directly establish the role of galectin 3 in colon cancer metastasis.
Methods: Galectin 3 levels were manipulated in human colon cancer cells using eukaryotic expression constructs designed to express the complete galectin 3 complementary DNA in either the sense or antisense orientation. Liver colonization was assessed in athymic mice after splenic-portal inoculation or after spontaneous metastasis during cecal growth.
Results: Introduction of galectin 3 antisense into metastatic colon cancer cells (LSLiM6, HM7) resulted in a significant reduction in galectin 3-specific messenger RNA and total and cell surface galectin 3 protein. Conversely, stable integration of galectin 3 in the sense orientation resulted in an increase in cellular and cell surface galectin 3 in cells of low metastatic potential (LS174T). Reduction in galectin 3 levels was associated with a marked decrease in liver colonization and spontaneous metastasis by LSLiM6 and HM7 cells, whereas up-regulation of galectin 3 resulted in increased metastasis by LS174T cells.
Conclusions: This study provides direct evidence that galectin 3 plays an important role in colon cancer metastasis.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/s0016-5085(98)70195-7 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Epidemiology and anatomic distribution of colorectal cancer in South Africa.
S Afr J Surg
December 2024
Centre for Global Surgery, Department of Global Health, Stellenbosch University, South Africa.
Background: Colorectal cancer (CRC) is the fifth most common cancer in sub-Saharan Africa (SSA) and the third most common in South Africa (SA). CRC characteristics in SSA are not well described. The aim is to describe patient characteristics and anatomic location of colorectal adenocarcinoma (CRC-AC) in SA.
View Article and Find Full Text PDFClinicopathologic Features and Viral Status of Low-risk HPV6 and HPV11-Associated Squamous Cell Carcinoma of the Uterine Cervix and Vulva.
Am J Surg Pathol
January 2025
Department of Pathology.
Despite being designated as "noncarcinogenic" human papillomavirus (HPV) types, mono-infection with HPV6 or HPV11 has been found in squamous cell carcinomas (SCCs) at specific sites, including the larynx, penis, anus, and rarely, the lower female genital tract. The association between clinicopathologic features, viral status, and the carcinogenic mechanisms related to these low-risk HPVs remains unclear. The current study characterizes a series of low-risk HPV6 and HPV11-associated SCCs of the uterine cervix (6 cases) and vulva (2 cases).
View Article and Find Full Text PDFColo-colic intussusception secondary to a giant lipoma: A case report.
Radiol Case Rep
March 2025
Department of Radiology, Hôtel-Dieu de France Hospital, Saint Joseph University, Beirut, Lebanon.
Intussusception in adults is a rare condition often associated with a pathological lead point, which is frequently malignant but can occasionally be benign, such as colonic lipomas. We report the case of a 60-year-old male who presented with colicky abdominal pain, and a computed tomography (CT) revealed a colo-colic intussusception caused by a 6 cm lipoma in the transverse colon, accompanied by ischemic changes in the colonic mucosa. The patient underwent a right hemicolectomy, and histopathology confirmed the benign nature of the lesion.
View Article and Find Full Text PDFGlobalisation of industry-sponsored clinical trials for breast, lung and colon cancer research: trends, threats and opportunities.
BMJ Oncol
September 2023
Department of Public Health, Institute of Tropical Medicine, Antwerpen, Belgium.
Objective: Breast, lung, colon cancers are the 'big killers' in oncology. Access to innovative treatments lags behind in low-income and middle-income countries. We investigated the geographic distribution of industry-sponsored trials; and whether results were reported in clinical trial registries.
View Article and Find Full Text PDFGlobal trends in incidence, death, burden and risk factors of early-onset cancer from 1990 to 2019.
BMJ Oncol
September 2023
Department of Big Data in Health Science, School of Public Health and The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China.
Objective: This study aimed to explore the global burden of early-onset cancer based on the Global Burden of Disease (GBD) 2019 study for 29 cancers worldwid.
Methods And Analysis: Incidence, deaths, disability-adjusted life years (DALYs) and risk factors for 29 early-onset cancer groups were obtained from GBD.
Results: Global incidence of early-onset cancer increased by 79.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!