The receptor protein tyrosine kinase 7 (PTK7) was recently shown to participate in noncanonical Wnt/planar cell polarity signalling during mouse and frog embryonic development. In this study, we report that PTK7 interacts with β-catenin in a yeast two-hybrid assay and mammalian cells. PTK7-deficient cells exhibit weakened β-catenin/T-cell factor transcriptional activity on Wnt3a stimulation. Furthermore, Xenopus PTK7 is required for the formation of Spemann's organizer and for Siamois promoter activation, events that require β-catenin transcriptional activity. Using epistatic assays, we demonstrate that PTK7 functions upstream from glycogen synthase kinase 3. Taken together, our data reveal a new and conserved role for PTK7 in the Wnt canonical signalling pathway.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3024124 | PMC |
| http://dx.doi.org/10.1038/embor.2010.185 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Bioinformatics Analysis of Programmed Death-1-Trastuzumab Resistance Regulatory Networks in Breast Cancer Cells.
Asian Pac J Cancer Prev
January 2025
Cancer Chemoprevention Research Center, Faculty of Pharmacy, Universitas Gadjah Mada Sekip Utara II, 55281 Yogyakarta, Indonesia.
Objective: Programmed cell death-1 (PD-1, encoded by PDCD1) regulatory network participates in glioblastoma multiforme development. However, such a network in trastuzumab-resistant human epidermal growth factor receptor 2-positive (HER2+) breast cancer remains to be determined. Accordingly, this study was aimed to explore the PD-1 regulatory network responsible for the resistance of breast cancer cells to trastuzumab through a bioinformatics approach.
View Article and Find Full Text PDFIntestinal Epithelial Ptpn23 Is Essential For Gut Barrier Integrity And Prevention Of Fatal Bacterial Translocation.
J Crohns Colitis
January 2025
Department of Gastroenterology and Hepatology, University Hospital Zurich, University of Zurich, Zurich, Switzerland.
Background And Aims: Protein tyrosine phosphatase non-receptor type 23 (PTPN23) regulates the internalization of growth factor receptors such as the epithelial growth factor receptor (EGFR). Given the crucial function of such receptors in intestinal epithelial cells (IECs), we assessed the involvement of PTPN23 in intestinal homeostasis and epithelial proliferation.
Methods: We generated mouse models with constitutive (PTPN23fl/flVilCre+/-) or inducible (PTPN23fl/flVilCreERT+/-) deletion of PTPN23 in IEC.
Novel PDGFRB Gene Fusions in Two Cases of Infantile Myofibromatosis.
Genes Chromosomes Cancer
January 2025
Pathology Unit, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy.
Infantile myofibromatosis (IM) comprises a wide clinical spectrum, ranging from solitary or multicentric lesions to generalized life-threatening forms. IM is mostly linked to germline or somatic heterozygous mutations in the PDGFRβ tyrosine kinase, encoded by the PDGFRB gene. Treatments for IM range from wait and see approach to systemic chemotherapy, according to the clinical context.
View Article and Find Full Text PDFThe emerging role of Bruton's tyrosine kinase inhibition in Urticaria Management.
Expert Opin Drug Saf
January 2025
Section of Dermatology - Department of Clinical Medicine and Surgery, University of Naples Federico II, Naples, Italy.
Introduction: Bruton's tyrosine kinase (BTK) is a cytoplasmic signaling protein expressed across a variety of immune cells, terminally differentiated plasma cells, and natural killer cells. Due to the signal potential and targetable nature of BTK, the use of BTK inhibitors (BTKis) has been proposed for the management of several diseases. Currently, the use of BTKis is under investigations for several dermatological conditions such as pemphigus, systemic lupus erythematosus, hidradenitis suppurativa, atopic dermatitis, and chronic spontaneous urticaria (CSU).
View Article and Find Full Text PDFEffects of acteoside from on the plasma metabolome of cancer-related fatigue mice inoculated with colon cancer cells.
Front Pharmacol
January 2025
Department of Pharmacognosy, School of Pharmacy, Xinjiang Medical University, Urumqi, China.
Objective: To elucidate the metabolic mechanisms by which acteoside (ACT) isolated from alleviates cancer-related fatigue (CRF) in a murine model of colon cancer with cachexia.
Methods: BALB/c mice inoculated with C26 colon cancer cells were treated with paclitaxel (PTX, 10 mg/kg) and ACT (100 mg/kg) alone or in combination for 21 days. Fatigue-associated behaviors, tumor inhibition rate, and skeletal muscle morphology assessed by hematoxylin-eosin (H&E) staining and electron microscopy were evaluated.
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!