POSTN (Periostin)

FKBPL-based peptide mimetic, AD-01 (1 nM), in high-glucose conditions, upregulated endothelial vcam1 and glut1 mRNA expression, independent of miR-302b-5p. FKBPL plays an important role in glucose metabolism, endothelial function, angiogenesis, cardiac inflammation and function, and could be explored as a therapeutic target of cardiovascular disease both in nondiabetes and diabetes settings using precision medicine approach.

Our study reveals a triad cellular structure mediated by SPP1+ TAMs, POSTN+ CAFs, and endothelial cells that contribute to immunotherapy resistance in BCa. Targeting this structure, particularly through SPP1 blockade, represents a promising strategy to augment the efficacy of immune checkpoint inhibitors.

Together, these findings identify sAPCs as a pathological stromal population that expands in obesity through elaboration of immunomodulatory factors. In particular, secreted OPG enables sAPCs to evade iNKT-mediated immune surveillance and contributes to metabolic dysfunction, highlighting OPG and sAPCs as promising therapeutic targets for restoring AT immune and metabolic homeostasis.

Additionally, sEVs derived from CAFs with POSTN knockdown reduced bone morphogenetic protein (BMP) 4 expression in macrophages, thereby inhibiting M2 polarization through the BMP receptor 2/Smad pathway. Collectively, these findings revealed that a POSTN+ fibroblasts fosters an immunosuppressive microenvironment via sEV‑mediated macrophage polarization, nominating POSTN as a potential therapeutic target to overcome ICB resistance in HNSCC.

Overall, we investigated the heterogeneity of TME from a single-cell perspective and demonstrated that SEMA3C serve as an effective biomarker for predicting lymph node metastasis and prognosis in PSCC. These findings may offer valuable insights for future therapeutic strategies.

In an independent validation cohort (n = 120), higher POSTN expression was associated with inferior disease-free survival. Collectively, these results nominate POSTN as a potential prognostic biomarker and support ECM-centered and PI3K-AKT-related mechanisms as actionable biological features of lymph-node metastasis in HER2-positive breast cancer.

Diff-Metabolic cells retained liver-specific functions with favorable prognosis, whereas the other three programs correlated with disease advancement; notably, all four states exhibited differential therapeutic vulnerabilities, including sorafenib resistance...Geneformer-based virtual knockout screening identified HSP90B1 as a convergent dependency, validated by its cancer cell essentiality, HCC overexpression, abundance in treatment-resistant tumors, and association with adverse survival. This integrated atlas establishes a framework for targeting tumor-intrinsic states and microenvironmental dependencies in HCC.

Ocriplasmin and pamidronate were identified as potential therapeutics. Our findings highlight the therapeutic relevance of these hub genes and identify them as potential drug targets and prognostic biomarkers in ovarian cancer.

Periostin expression correlates with OSCC progression, highlighting its potential as a biomarker for early diagnosis and as a therapeutic target. Further large-scale studies are required to validate these findings.

This study defines a spatially organized stromal-immune signaling axis that drives immune exclusion and immunotherapy resistance in ccRCC. Targeting the POSTN⁺ CAF-CCL3⁺ macrophage interaction offers a promising strategy to remodel the fibrotic barrier and restore antitumor immunity.

Stromal POSTN expression and immune cell infiltration, particularly combined (CD8+CD4), offer significant prognostic insights in CRC and may guide therapeutic decisions.

This integrative multi-cohort study uncovered common transcriptional and immune signatures underlying SjD, MALT lymphoma, and thyroid cancer. The identification of shared hub genes, particularly PLA2G7 and TGFB1I1, provides novel insight into the immune-driven transition from chronic inflammation to malignancy and offers promising biomarkers for cross-disease diagnosis and immunotherapeutic stratification. Key Points • Key genes (PLA2G7 and TGFB1I1) affecting the occurrence of Sjögren's syndrome, mucosa-associated lymphoid tissue lymphoma, and thyroid cancer are identified for the first time. • Bioinformatics methods were employed to simultaneously study three diseases for the first time.