STAB1 (Bexmarilimab Biosimilar) Recombinant Monoclonal Antibody

Code CSB-RA865173MB1HU
Size US$9799
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Product Details

Uniprot No.
Target Names
Alternative Names
Anti-clever-1 monoclonal antibody FP-1305 research-grade biosimilar; Clevegen research-grade biosimilar; FP1305 research-grade biosimilar; FP-1305 research-grade biosimilar ;STAB1 antibody; FEEL1 antibody; KIAA0246 antibody; Stabilin-1 antibody; Fasciclin, EGF-like, laminin-type EGF-like and link domain-containing scavenger receptor 1 antibody; FEEL-1 antibody; MS-1 antigen antibody
Species Reactivity
Human
Immunogen
Recombinant Human STAB1 protein
Immunogen Species
Homo sapiens (Human)
Conjugate
Non-conjugated
Clonality
Monoclonal
Concentration
It differs from different batches. Please contact us to confirm it.
Buffer
0.01M PBS,pH7.4
Form
Liquid
Troubleshooting and FAQs
Storage
Upon receipt, store at -20°C or -80°C. Avoid repeated freeze.
Notes
Validation Status
Application-specific performance (e.g., in flow cytometry, ELISA, IHC or other assay formats) has not yet been experimentally verified by CUSABIO. Users are advised to determine the optimal working conditions empirically in their own assay systems.
Guaranteed Quality
① Antibody purity > 95% tested by SDS-PAGE.
② Endotoxin level < 0.1EU/ug tested by LAL method.
Lead Time
3-4 weeks
Description

This recombinant monoclonal antibody is developed as a research-grade biosimilar to Bexmarilimab, targeting STAB1 (Stabilin-1), a multifunctional scavenger receptor expressed primarily on alternatively activated macrophages and sinusoidal endothelial cells. STAB1 plays critical roles in homeostatic processes including clearance of modified self-components, cell adhesion, and regulation of inflammatory responses. This receptor has emerged as an important marker of immunosuppressive tumor-associated macrophages (TAMs) in the tumor microenvironment, where its expression correlates with poor prognosis in various malignancies including colorectal cancer, hepatocellular carcinoma, and other solid tumors.

Bexmarilimab, the reference antibody, is a first-in-class therapeutic monoclonal antibody designed to deplete STAB1-positive immunosuppressive macrophages, thereby enhancing anti-tumor immunity. This biosimilar antibody provides researchers with a valuable tool for investigating STAB1 biology, studying macrophage polarization and function, exploring mechanisms of tumor immune evasion, and developing novel immunotherapeutic strategies. It enables detailed examination of STAB1's role in cancer progression, metastasis, and therapeutic resistance across diverse experimental models.

Usage
It is a non-therapeutic biosimilar antibody, owning the same variable region from the corresponding approved therapeutic antibody. In conclusion, it is a research-grade biosimilar antibody and expressed in mammalian cell, which can be directly used as positive controls in drug discovery or used for rapid verification of the biological functions of target protein.

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Target Background

Function
Acts as a scavenger receptor for acetylated low density lipoprotein. Binds to both Gram-positive and Gram-negative bacteria and may play a role in defense against bacterial infection. When inhibited in endothelial tube formation assays, there is a marked decrease in cell-cell interactions, suggesting a role in angiogenesis. Involved in the delivery of newly synthesized CHID1/SI-CLP from the biosynthetic compartment to the endosomal/lysosomal system.
Gene References into Functions
  1. Satb1 promotes osteoclastogenesis by recruiting CREB-binding protein to upregulate miR-223 expression in chronic kidney disease-mineral and bone disorder PMID: 29442043
  2. Systemic rAAV-DCN in neuroblastoma-grafted nude mice inhibited stabilin-1. PMID: 28631095
  3. Results suggest stabilin-1 mediated silent clearance of extracellular tumor growth-inhibiting factors as a mechanism of stabilin-1 induced tumor growth. PMID: 27105498
  4. These data define stabilin-1 as a new immunosuppressive molecule and suggest that stabilin-1(high) monocytes may dampen proinflammatory reactions in vivo. PMID: 26608916
  5. The present findings suggest that STAB1 is a new and highly promising candidate gene in this region. The combining of gene expression and GWAS data may provide valuable insights into the biological mechanisms of BD. PMID: 25136889
  6. Genes within recently identified loci associated with waist-hip ratio (WHR) exhibit fat depot-specific mRNA expression, which correlates with obesity-related traits. Adipose tissue (AT) mRNA expression of 6 genes (TBX15/WARS2, STAB1, PIGC, ZNRF3, GRB14 PMID: 23670221
  7. The associations between CLEVER-1 expression on endothelial vessels and macrophage/leukocyte infiltration is suggestive of its regulation by inflammatory conditions in breast cancer, most likely by macrophage-associated cytokines. PMID: 21483103
  8. macrophage stabilin-1/CLEVER-1 can potentially regulate leukocyte migration and scavenging during the development of the placenta and fetus PMID: 21480214
  9. Studies identified a binding site on SPARC for stabilin-1 by a solid-state peptide array coupled with a modified enzyme-linked immunosorbent assay. PMID: 21308731
  10. CLEVER-1/stabilin-1 can support lymphocyte transendothelial migration; it also may provide an organ-specific signal for regulatory T cell recruitment to the inflamed liver and to hepatocellular carcinoma. PMID: 21368224
  11. Studies shoe that understanding stabilin-1 behavior in complex biological systems and would open perspectives for therapeutic targeting of stabilin-1 pathways in chronic inflammation. PMID: 20953554
  12. these results indicate that GULP functions as an adaptor protein for stabilin-1-mediated phagocytosis. PMID: 20599701
  13. role in endocytic clearance and secretion in macrophages; review PMID: 19457577
  14. code for homologous transmembrane proteins featuring seven fasciclin-like adhesion domains, 18-20 epidermal-growth-factor domains, one X-link domain and three to six B-(X(7))-B hyaluronan-binding motifs PMID: 11829752
  15. FEEL-1, a novel scavenger receptor with in vitro bacteria-binding and angiogenesis-modulating activities. PMID: 12077138
  16. This and FEEL-2 are endocytic receptors for advanced glycation end products. PMID: 12473645
  17. CLEVER-1 also known as stabilin-1 or FEEL-1) is a large multifunctional glycoprotein implicated in scavenging, angiogenesis, cell adhesion and angiogenesis PMID: 15297319
  18. role for stabilin-1 as a rapidly recycling scavenger receptor PMID: 15345716
  19. stabilin-1 may function in endocytic and secretory processes of human macrophages. PMID: 15345724
  20. Stabilin-1 internalizes and targets secreted protein acidic and rich in cysteine (SPARC) to an endosomal pathway in stably transfected Chinese hamster ovary cells. PMID: 16670288
  21. Stabilin-1 mediates internalization and endosomal sorting of placental lactogen. PMID: 18292525
  22. Stabilin-1, found on alternatively activated macrophages, is a phagocytic receptor mediating the clearance of apoptotic cells in a phosphatidylserine-dependent manner. PMID: 19726632
  23. The novel GGA-binding site EDDADDD is essential for stabilin-1-mediated intracellular sorting but is not required for endocytosis. PMID: 19752197

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Subcellular Location
Membrane; Single-pass type I membrane protein.
Tissue Specificity
High levels found in spleen, lymph node, liver and placenta. Also expressed in endothelial cells.
Database Links

HGNC: 18628

OMIM: 608560

KEGG: hsa:23166

STRING: 9606.ENSP00000312946

UniGene: Hs.301989

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