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GENE:

SPP1 (Secreted Phosphoprotein 1)

i
Other names: SPP1, Secreted Phosphoprotein 1, Osteopontin, Early T-Lymphocyte Activation 1, Urinary Stone Protein, Nephropontin, Uropontin, BNSP, OPN, Secreted Phosphoprotein 1 (Osteopontin, Bone Sialoprotein I, Early T-Lymphocyte Activation 1), Osteopontin/Immunoglobulin Alpha 1 Heavy Chain Constant Region Fusion Protein, Secreted Phosphoprotein 1 Variant 6, SPP1/CALPHA1 Fusion, Bone Sialoprotein 1, Bone Sialoprotein I, ETA-1, SPP-1, BSPI
1d
Osteopontin: a central hub in the pathogenesis and therapeutic intervention of liver disease. (PubMed, Ann Med)
Harnessing its therapeutic potential represents the cornerstone for developing future OPN-targeted therapies. This strategic approach will create new avenues for liver disease treatment, enabling precise interventions tailored to specific disease contexts.
Review • Journal
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AFP (Alpha-fetoprotein) • SPP1 (Secreted Phosphoprotein 1) • ARG2 (Arginase 2)
1d
Tumor-stromal crosstalk and macrophage enrichment are associated with chemotherapy response in bladder cancer. (PubMed, FEBS Open Bio)
Gemcitabine/Cisplatin (Gem/Cis) chemotherapy is a standard treatment for muscle-invasive bladder cancer (MIBC) but yields suboptimal response rates. Using TCGA bladder cancer data, the transcriptomic gene set was further validated revealing a prognostic signature associated with patients' outcome. These findings uncover a novel mechanism of chemotherapy resistance in bladder cancer driven by tumor-stromal interactions and macrophage recruitment and suggest that targeting macrophage infiltration may improve chemotherapy response in bladder cancer.
Journal • PD(L)-1 Biomarker • IO biomarker
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PD-L1 (Programmed death ligand 1) • CXCL8 (Chemokine (C-X-C motif) ligand 8) • PD-L2 (Programmed Cell Death 1 Ligand 2) • SPP1 (Secreted Phosphoprotein 1) • CXCL1 (Chemokine (C-X-C motif) ligand 1)
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cisplatin • gemcitabine
2d
Colorectal Cancer Cell's Weapon: RNF32 Engages SPP1+ Macrophages to Foster Liver Metastasis, Targeted by Indole-3-Acetic Acid. (PubMed, Adv Sci (Weinh))
Macrophage depletion abrogates metastasis, while the FABP1 inhibitor orlistat reverses SPP1 upregulation in macrophages...Importantly, virtual screening identifies indole-3-acetic acid (IAA) as an RNF32 inhibitor that suppresses liver metastasis and reverses immunosuppression in vivo. This study establishes RNF32 as a dual-functional driver of metastasis and proposes IAA as a promising therapeutic agent, offering new hope for targeting both tumor-intrinsic EMT and the immune microenvironment in CRC liver metastasis.
Journal
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SPP1 (Secreted Phosphoprotein 1) • CCL2 (Chemokine (C-C motif) ligand 2) • PPARG (Peroxisome Proliferator Activated Receptor Gamma) • CCR2 (C-C Motif Chemokine Receptor 2) • FABP1 (Fatty Acid Binding Protein 1)
2d
SPP1, LYZ, and MCM5: potential diagnostic biomarkers for rheumatoid arthritis and cervical cancer comorbidity. (PubMed, Front Med (Lausanne))
This study successfully identified SPP1, LYZ, and MCM5 as key hub genes for the comorbidity of RA and cervical cancer. By regulating processes like inflammation, immune evasion, and cell proliferation, these genes not only have a high diagnostic potential but may also contribute to the occurrence and development of cervical cancer.
Journal
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SPP1 (Secreted Phosphoprotein 1) • MCM5 (Minichromosome Maintenance Complex Component 5)
3d
Transcription Factor Networks Drive Tumor Progression and Immune Microenvironment Remodeling in Hepatocellular Carcinoma. (PubMed, Cancers (Basel))
(4) In summary, a tumor-intrinsic TF network cooperates with SPP1+ macrophage signaling to promote a permissive microenvironment and HCC progression. This integrated axis highlights tractable vulnerabilities for therapeutic intervention.
Journal
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SPP1 (Secreted Phosphoprotein 1) • FOXM1 (Forkhead Box M1) • DDIT3 (DNA-damage-inducible transcript 3) • MYBL2 (MYB Proto-Oncogene Like 2) • E2F1 (E2F transcription factor 1) • ETV4 (ETS Variant Transcription Factor 4)
4d
Pulmonary macrophage-targeted RNAi and mRNA co-delivery via SORT lipid nanoparticles enhances immunotherapy in lung cancer. (PubMed, J Control Release)
When combined with the immune checkpoint inhibitors (ICIs) in vivo, siSPP1-mIFNγ@mLNPs significantly boost anti-tumor immune responses in both orthotopic lung cancer and pulmonary metastases. Overall, siSPP1-mIFNγ@mLNPs present innovative perspectives for precise cell-type targeting strategies and position SPP1+ macrophage reprogramming as a clinically actionable strategy to convert ICI non-responders into long-term survivors.
Journal
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IFNG (Interferon, gamma) • SPP1 (Secreted Phosphoprotein 1)
4d
Comparative Gene Expression Analysis of Malignant Mesothelioma and Lung Adenocarcinomas Induced by Multi-Walled Carbon Nanotube-7 and Double-Walled Carbon Nanotubes in Rats: Distinct Molecular Signatures and Canonical Pathways. (PubMed, Nanomaterials (Basel))
In addition, the gene expression profiles of the ADCs induced by the three fiber types indicate that both types of thin flexible DWCNTs used in the present study promoted a number of carcinogenic pathways in the rat lung that were also promoted by MWCNT-7, which is a class 2B carcinogen. These results support the conclusion that DWCNTs are carcinogenic in the rat lung and highlight the importance of further assessments of the potential lung carcinogenicity of inhaled thin flexible CNTs.
Preclinical • Journal
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SPP1 (Secreted Phosphoprotein 1) • NECTIN1 (Nectin Cell Adhesion Molecule 1)
5d
Multi-omics profiling identifies ESM1 as a key mediator of immunoevasion through the SPP1 pathway in bladder cancer. (PubMed, Sci Rep)
Overexpressed ESM1 may mediate a reduced level of immune cell infiltration in TME through immune signalling pathways. ESM1 can be used as a predictive biomarker for immune-related and clinical progression in BC.
Journal • IO biomarker
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SPP1 (Secreted Phosphoprotein 1) • TERC (Telomerase RNA Component) • MIR129 (MicroRNA 129) • ESM1 (Endothelial Cell Specific Molecule 1)
6d
Mapping TAM-tumor crosstalk in glioma via ligand-receptor multi-omics: mechanisms of immune evasion. (PubMed, Front Immunol)
Our synthesis provides an appraisal of reproducible communication architectures in glioma and outlines pragmatic reporting standards and trial-ready pharmacodynamic endpoints for myeloid-informed precision immuno-oncology. We hope these insights will assist researchers and clinicians as they design multi-omics pipelines and interventions to convert suppressive ecosystems into responsive ones.
Review • Journal
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PD-1 (Programmed cell death 1) • CXCL8 (Chemokine (C-X-C motif) ligand 8) • CD73 (5'-Nucleotidase Ecto) • SPP1 (Secreted Phosphoprotein 1) • HMOX1 (Heme Oxygenase 1) • IL10 (Interleukin 10) • CSF1R (Colony stimulating factor 1 receptor) • ENTPD1 (Ectonucleoside Triphosphate Diphosphohydrolase 1) • SIRPA (Signal Regulatory Protein Alpha)
6d
A novel TM4SF4-targeting therapeutic antibody candidate with antitumor activity by blocking IGF1R and CD44 signaling and downregulating PD-L1 and B7-H4. (PubMed, Theranostics)
The humanized anti-TM4SF4 antibody, Hz2B7-1.2, exhibits strong antitumor activity through multiple mechanisms, including inhibition of oncogenic signaling pathways, reduction of EMT-associated stemness, and modulation of immune responses. These findings support Hz2B7-1.2 as a promising therapeutic candidate for TM4SF4-positive cancers, warranting further clinical investigation.
Journal • PD(L)-1 Biomarker • IO biomarker
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PD-L1 (Programmed death ligand 1) • JAK2 (Janus kinase 2) • CTNNB1 (Catenin (cadherin-associated protein), beta 1) • VTCN1 (V-Set Domain Containing T Cell Activation Inhibitor 1) • STAT3 (Signal Transducer And Activator Of Transcription 3) • SPP1 (Secreted Phosphoprotein 1) • IGF1 (Insulin-like growth factor 1)
8d
Spatiotemporal profiling of endocytic regulators in the immunosuppressive TAM microenvironment of glioma. (PubMed, Brain Res)
Immunohistochemistry and Western blot analyses further validated their elevated protein expression in high-grade glioma tissues. Collectively, this spatial multi-omic framework delineates endocytosis-associated immune remodeling in glioma and identifies FCGR2B, CLEC7A, and LYAR as potential biomarkers and therapeutic targets for disrupting immunosuppressive niches.
Journal
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SPP1 (Secreted Phosphoprotein 1) • CLEC7A (C-Type Lectin Domain Containing 7A) • FCGR2B (Fc Fragment Of IgG Receptor IIb)
9d
Integrated bulk and single-cell transcriptomics to develop an efferocytosis-related prognostic model for lung adenocarcinoma and validate the key gene LDHA. (PubMed, Eur J Med Res)
We constructed an efferocytosis-related prognostic gene model for LUAD. Furthermore, LDHA may target M2 macrophages, highlighting its potential as a therapeutic target in LUAD.
Journal
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LDHA (Lactate dehydrogenase A) • SPP1 (Secreted Phosphoprotein 1)