AI Article Synopsis
- The nm23 gene is often found to have lower expression in more aggressive breast tumors and certain rodent models, which suggests a link between nm23 levels and tumor spread.
- Researchers introduced a version of the nm23-1 gene into highly metastatic melanoma cells, finding that these modified cells showed less primary tumor formation and reduced metastatic potential without affecting their overall growth.
- The study indicates that nm23 plays a role in suppressing cancer spread, highlighting its potential as a target for cancer treatments.
Article Abstract
Reduced expression of the nm23 gene in certain rodent model systems and human breast tumors has been correlated with high tumor metastatic potential. To investigate the functional effects of nm23 expression, we have transfected a constitutive murine nm23-1 expression construct into highly metastatic K-1735 TK murine melanoma cells. TK clones expressing the exogenous nm23-1 construct exhibited a reduced incidence of primary tumor formation, significant reductions in tumor metastatic potential independent of tumor cell growth, and altered responses to the cytokine transforming growth factor beta 1 in soft agar colonization assays, compared with control-transfected TK clones. In contrast, nm23-1-transfected TK clones exhibited no significant differences in intrinsic tumor cell growth, i.e., primary tumor size in vivo, anchorage-dependent growth rate in vitro, and anchorage-independent colony formation in soft agar in vitro. The data demonstrate a suppressive effect of nm23 on several aspects of the cancer process, including tumor metastasis.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/0092-8674(91)90404-m | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Serial Total Bile Acid Measurements in Intrahepatic Cholestasis of Pregnancy.
Obstet Gynecol
January 2025
Department of Obstetrics, Gynecology and Reproductive Science, University of California, San Diego, San Diego, California; and the Department of Obstetrics, Gynecology and Reproductive Science, Mount Sinai Health System & Icahn School of Medicine at Mount Sinai, New York, and the Department of Obstetrics, Gynecology and Reproductive Science, New York City Health and Hospitals - Elmhurst Hospital Center, Elmhurst, New York.
Although peak serum total bile acid (TBA) levels guide management of intrahepatic cholestasis of pregnancy (ICP), whether ICP progresses in severity and when or how to assess bile acid levels serially remains unclear. We conducted a secondary analysis of a single-institution retrospective cohort study to assess bile acid trends across pregnancy among individuals diagnosed with ICP and to evaluate whether there was progression to higher ICP severity. We defined ICP severity as mild (peak TBA less than 40 micromol/L), moderate (peak TBA between 40 and 100 micromol/L), or severe (peak TBA 100 micromol/L or greater).
View Article and Find Full Text PDFNexinhib20 inhibits JFC1-mediated mobilization of a subset of CD11b/CD18+ vesicles decreasing integrin avidity, but does not inhibit Rac1.
J Leukoc Biol
January 2025
Department of Molecular and Cellular Biology, The Scripps Research Institute, La Jolla, CA.
Regulated sequential exocytosis of neutrophil granules is essential in orchestrating the innate immune response, while uncontrolled secretion causes inflammation. We developed and characterized Nexinhib20, a small-molecule inhibitor that targets azurophilic granule exocytosis in neutrophils by blocking the interaction between the small GTPase Rab27a and its effector JFC1. Its therapeutic potential has been demonstrated in several pre-clinical models of inflammatory disease.
View Article and Find Full Text PDFChildhood trauma and subclinical PTSD symptoms predict adverse effects and worse outcomes across two mindfulness-based programs for active depression.
PLoS One
January 2025
Department of Psychiatry and Human Behavior, Warren Alpert Medical School, Brown University, Providence, RI, United States of America.
Within mindfulness-based programs (MBPs), mixed results have been found for the role of childhood trauma as a moderator of depression outcomes. Furthermore, childhood trauma and PTSD symptoms have been identified as possible risk factors for the occurrence of meditation-related adverse effects (MRAE). The present research examined multiple forms of childhood trauma and PTSD symptoms as predictors of depression treatment outcomes and MRAEs.
View Article and Find Full Text PDFThe PainSMART project: Protocol for a research program on effectiveness, mechanisms of effect and patient-practitioner experiences of the PainSMART-strategy as an adjunct to usual primary care physiotherapy management for musculoskeletal pain.
PLoS One
January 2025
Unit of Physiotherapy, Division of Prevention, Rehabilitation and Community Medicine, Department of Health, Medicine and Caring Sciences, Linköping University, Linköping, Sweden.
Background: Musculoskeletal pain (MSKP) disorders entail a significant burden for individuals and healthcare systems. The PainSMART-strategy has been developed aiming to reduce divergences between patients and healthcare practitioners in their understanding of MSKP by providing a shared basis for communication and to facilitate patients' self-management of MSKP. The objective of the PainSMART-project is to evaluate the effects of the PainSMART-strategy as an adjunct to usual physiotherapy management compared to usual physiotherapy management alone.
View Article and Find Full Text PDFDynamics of tissue repair regulatory T cells and damage in acute Trypanosoma cruzi infection.
PLoS Pathog
January 2025
Centro de Investigaciones en Bioquímica Clínica e Inmunología (CIBICI-CONICET). Córdoba, Argentina.
Tissue-repair regulatory T cells (trTregs) comprise a specialized cell subset essential for tissue homeostasis and repair. While well-studied in sterile injury models, their role in infection-induced tissue damage and antimicrobial immunity is less understood. We investigated trTreg dynamics during acute Trypanosoma cruzi infection, marked by extensive tissue damage and strong CD8+ immunity.
View Article and Find Full Text PDFWant 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!