Ask about this productRelated genes to: PTPRZ1 antibody
- Gene:
- PTPRZ1 NIH gene
- Name:
- protein tyrosine phosphatase receptor type Z1
- Previous symbol:
- PTPZ, PTPRZ
- Synonyms:
- PTP18, RPTPB, phosphacan
- Chromosome:
- 7q31.32
- Locus Type:
- gene with protein product
- Date approved:
- 1991-05-15
- Date modifiied:
- 2019-04-23
Related products to: PTPRZ1 antibody
Related articles to: PTPRZ1 antibody
- Comprehensive genomic profiling test (CGPT) using next-generation sequencing (NGS) plays a vital role in cancer diagnosis, treatment option, and prognostic evaluation. In Japan, three tissue-based CGPTs, FoundationOne® CDx, GenMineTOP, and NCC OncoGuide™, are reimbursed under public health insurance. However, their comparative performance in central nervous system (CNS) tumors remains unclear. - Source: PubMed
Publication date: 2026/05/06
Kawauchi DaisukeOhno MakotoTakahashi MasamichiKoyama TakafumiSunami KunikoHirata MakotoYanagisawa ShunsukeOmura TakakiAoki TakumaFujii GentaSaito KojiYamamoto TetsuyaSuzuki HiromichiNarita Yoshitaka - Comprehensive molecular and phenotypic characterization of tumor models is still needed for a robust understanding of breast cancer mechanisms and therapies. Here, we explore the genome, transcriptome, and proteome of treated and untreated 4T1 triple-negative breast cancer cells to integrate genomic vulnerabilities and mutational profiling with novel treatment-induced delivery, signaling, and apoptotic responses. Nanoencapsulation (AuNPs) of berry-derived polyphenolic compounds was influenced by limited clinical use due to poor stability and bioavailability. Several physicochemical characterizations employed include TEM, FTIR, and targeted UPLC/MS-QQQ assays. We identified significant mutations to breast cancer-related tumor suppressor genes (TP53, BRCA2, BARD1, CDH1, NF1, and CHEK2) and deciphered the functional consequences leveraging the higher throughput Illumina NovaSeq X and NextSeq sequencing and the highly accurate predictive power of AlphaFold. We found ~5,700,000 single-nucleotide variations (SNVs) and 329448 indels, achieving an important upgrade over existing literature data. Multiple sequence alignment with WT mouse and human protein sequences demonstrated that mutations present in 4T1 cells are within highly conserved motifs of key tumor suppressors, emphasizing their relevance to human breast cancer biology. Key findings from differentially expressed gene enrichment analyses (GSEA) revealed positive gene enrichments of DNA repair regulators and TGF-β signaling, while having negative enrichments of cell adhesion, cadherin and MAPK signaling via PI3K/AKT/MAPK/Wnt pathways, potentially influencing apoptosis and immune evasion intrinsic to cancer. Notably, decreased expression of PIK3CG, PALLD, PTPRZ1, and CDH8 and increased expression of SEMA6C, WWOX, NHEJ1, and MAML3 suggested suppression of epithelial-to-mesenchymal transition (EMT) and metastatic potential. Further assessment of immunohistochemical, immunofluorescent, and flow cytometric data revealed that berry-derived nanoparticles are associated with the modulation of oncogenic transcription factors and linked to induced caspase-dependent execution-phase ROS-mediated apoptosis through pPAK1 dephosphorylation, downregulation of pPI3K/pAKT1/mTOR signaling, and modulation of pJAK3/STAT3 pathway supporting transcriptomic and transcriptional reprogramming of 4T1 treated cells. Together, our findings uncover a new strategy to capture berry-derived polyphenols required to regulate apoptosis, autophagy, immune response, and metastasis-related gene networks in breast cancer, thereby underscoring the therapeutic potential of functionalized AuNPs as delivery platforms for dietary phytochemicals. - Source: PubMed
Publication date: 2026/04/10
Fagbohun Oladapo FOladipo Adewale OGao ChengyuOlawoye BabatundeBerry Rachel SCaptain Jaylah CIragena OliveMcDougle XavierHarris Randy JRollins AmandaJoseph Jitcy SFadare Olatomide AKincaid Russell - Protein tyrosine phosphatase receptor type Z1 () is one of the most abundantly expressed and enriched genes in astrocytes during development, yet its function in astrocytes is unknown. Using an astrocyte-neuron coculture system, we found that knockdown of in astrocytes significantly impaired astrocyte branching morphogenesis. To investigate the function of in astrocytes during brain development, we generated a conditional knock-out mouse and deleted from astrocytes postnatally, after the bulk of astrogenesis is complete. At postnatal day 21, we found subtle changes in astrocyte morphology and a reduction in the density of colocalized pre- and postsynaptic excitatory synapse markers across multiple layers of the visual cortex in both male and female mice, suggesting important functions for astrocytic in both astrocyte morphogenesis and synaptogenesis. is expressed in several neural cell types, including radial glial stem cells and oligodendrocyte progenitor cells, and regulates critical aspects of neurodevelopment, including neurite outgrowth, neuronal differentiation, myelination, and extracellular matrix development. Moreover, altered expression is associated with schizophrenia and glioblastoma. Therefore, this mouse model is a valuable resource for investigating cell-type-specific function in numerous neurodevelopmental and neuropathological mechanisms. - Source: PubMed
Publication date: 2026/04/22
Eaker Alex RSpence-Osorio Hayli ECoble Madelyn GDogan Breana CBaldwin Katherine T - MET alterations, including MET fusions and splicing variants (F/SVs), are linked to glioma progression, but the clinical features remain underexplored since the 2021 WHO classification of tumors of the CNS. We aimed to systematically depict the MET F/SVs and patient characteristics in a multicenter cohort focusing on clinical, pathological, and survival features. We studied data from 1,041 patients with MET F/SVs data from the public Chinese Glioma Genome Atlas database and the TruSight Tumor 170 study. Clinical outcomes were evaluated based on the RANO criteria. We used chi-square and Fisher's exact tests for variable analysis. Kaplan-Meier analysis was used to assess survival trends, while univariate and multivariate analyses revealed the prognostic value of MET F/SVs. Immunohistochemical staining was performed to demonstrate the MET expression level. Among the 1,041 patients, 49 patients had F/SVs (4.70%), and 23 had ZM fusion (PTPRZ1-MET fusion gene; 2.21%). Among the 67 recurrent grade 4 astrocytomas, the proportions of F/SVs (11.94%, n = 8) and ZMs (5.97%, n = 4) were the highest. MET F/SVs were significantly associated with malignant clinical outcomes in the IDH-mutant astrocytoma cohort, with a frequency of 5.04% (18/357) across all WHO grades. Multivariate analysis revealed that the MET F/SVs were independently associated with worse survival in astrocytoma patients [overall survival (OS): p = 0.0011; progression-free survival (PFS): p = 0.004]. ZM fusion was associated with a worse prognosis in both astrocytoma (OS p < 0.001, PFS p < 0.001) and glioblastoma (OS, p = 0.252; PFS, p = 0.010) patients. We highlight the utmost relevance of ZM fusion as an adverse prognostic factor in astrocytoma (11/382, 2.88%) and glioblastoma grade 4 (11/401, 2.74%) patients and suggest that the grading of these tumors should be refined. - Source: PubMed
Fang ZhengZheng ChengjunWang PengLiu XingLiu LingyuLi GuanzhangDong JiahanChen QiaodongZhang DelongFeng YutongZhang YingBao Zhaoshi - Neurons exert a pivotal role in the preservation of cardiac physiological function. However, there is a lack of explanation about the mechanism of cardiac neurons in the pathogenesis of cardiac dysfunction. Here, we generated a cardiac neuron landscape including 11,026 neuronal cells based on the integration of published single-nucleus RNA sequencing data from 75 patients with heart failure and 45 healthy donors. We determined ten distinct neuronal cell subsets differing in abundances, compositions, and biological functions in the heart. In particular, N4-ALK neurons were significantly enriched in failing hearts relative to healthy controls, and their abundance was associated with the response to left ventricular assist device implantation. RXRG, a transcription factor highly expressed in neuronal cells, participated in the transcriptional regulatory network of N4-ALK neurons and showed a positive correlation with the expression of their marker genes. Notably, in heart failure, the PTN-PTPRZ1 axis mediated specific crosstalk between cardiac fibroblasts and N4-ALK neurons. Finally, we used N4-ALK-related features to develop an optimized prediction model for identifying individuals with heart failure. Overall, our integrative cardiac neuron atlas comprehensively characterizes the molecular and functional diversity of neuronal cells, providing a new perspective for further exploration of the regulatory function of neurons in heart failure. - Source: PubMed
Publication date: 2026/03/20
Zhuang ShupingYang XiuqiZhang NanLiu JiangQiLiu KaidongHan HuimingZhai SongmeiLiu MingyueLiang HaihaiGu YunyanLu Yanjie