Rat CD68/SR-D1 ELISA Kit (Colorimetric)

Novus Biologicals | Catalog # NBP2-75159

Novus Biologicals
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Key Product Details

Sample Type & Volume Required Per Well

Serum, plasma and other biological fluids (100 uL)

Sensitivity

0.47 ng/mL

Assay Range

0.78 - 50 ng/mL
View all CD68/SR-D1 ELISA Kits »

Product Specifications

Assay Type

Sandwich-ELISA

Kit Type

ELISA Kit (Colorimetric)

Species

Rat

Specificity

This Rat CD68/SR-D1 ELISA Kit (Colorimetric) recognizes Rat D68/SR-D1 in samples. No significant cross-reactivity or interference between Rat CD68 and analogues was observed.

Precision

Intra-Assay Precision (Precision within an assay) CV% 5.66%

Inter-Assay Precision (Precision between assays) CV% 5.23%

Recovery for Rat CD68/SR-D1 ELISA Kit (Colorimetric)

Recovery

86-109%

Linearity

Rat CD68/SR-D1 ELISA Kit (Colorimetric)

Scientific Data Images for Rat CD68/SR-D1 ELISA Kit (Colorimetric)

Rat CD68/SR-D1 ELISA Kit (Colorimetric)

ELISA: Rat CD68/SR-D1 ELISA Kit (Colorimetric) [NBP2-75159] -

ELISA: Rat CD68/SR-D1 ELISA Kit (Colorimetric) [NBP2-75159] - Standard Curve Reference

Kit Contents for Rat CD68/SR-D1 ELISA Kit (Colorimetric)

  • Biotinylated Detection Ab Diluent
  • Concentrated Biotinylated Detection Ab (100x)
  • Concentrated HRP Conjugate (100x)
  • Concentrated Wash Buffer (25x)
  • HRP Conjugate Diluent
  • Micro ELISA Plate (Dismountable)
  • Plate Sealer
  • Product Manual
  • Reference Standard
  • Sample Diluent
  • Stop Solution
  • Substrate Reagent

Preparation and Storage

Shipping

The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.

Stability & Storage

Storage of components varies. See protocol for specific instructions.

Background: CD68/SR-D1

Human CD68, also known as GP110, LAMP4, Scavenger Receptor D1 (SR-D1) or macrosialin in mouse, encodes a 110-kD transmembrane glycoprotein that belongs to the lysosomal/endosomal-associated membrane glycoprotein (LAMP) family. Members of the LAMP family include LAMP-1, LAMP-2, dendritic cell (DC)-LAMP (aka CD208), and brain and dendritic cell-associated (BAD)-LAMP (aka LAMP-5). Unlike the two LAMP domains facing the lysosomal lumen in LAMP-1 and LAMP-2, CD68 has a single LAMP domain containing four cystines spaced 36-37 residues apart along with an N-terminal Mucin-like domain. The 354 amino acid (a.a.) human CD68 and 326 a.a. murine ortholog share 80.6% a.a. sequence identity (1).

CD68 is highly expressed in cells of the mononuclear phagocyte system such as macrophages, microglia, osteoclasts, and myeloid dendritic cells (DCs); and is expressed to a lesser extent in lymphoid cells (CD19+ B lymphocytes and CD4+ T lymphocytes), human umbilical cord mesenchymal stem cells (MSCs), fibroblasts, endothelial cells, multiple non-hematopoietic cancer cell lines, and human arterial intimal smooth muscle cells (SMCs). Expression has been also observed in diseased states for granulocytes and neutrophils, in particular basophils from myeloproliferative disorders and intestinal neutrophils from inflammatory bowel disease (IBD), respectively (1).

Although the function of CD68 has yet to be established, it has often been used as an immunohistochemistry (IHC) marker of inflammation and for granular cell tumors (GCTs). CD68+ tumor associated macrophages (TAMs) has been suggested to be a predictive marker for poor cancer prognosis, but a meta-analysis showed the presence of CD68 is not correlated with survival (2). In addition, a role in hepatic malaria infection has been reported based on the finding that peptide P39 binds CD68, considered a receptor for malaria sporozoite, and inhibits parasite entry into Kupffer cells. CD68 was deemed a member of the Scavenger receptor family due to its upregulation in macrophages following inflammatory stimuli, ability to bind modified LDL, phosphatidylserine, and apoptotic cells, as well as shuttling between the plasma membrane and endosomes. CD68 has been linked to atherogenesis based on binding and internalization of its ligand, oxLDL (1).

References

1. Chistiakov, DA, Killingsworth, MC, Myasoedova, VA. Orekhov AN, Bobryshev YV. (2017) CD68/macrosialin: not just a histochemical marker. Lab Invest. 97:4-13. PMID: 27869795

2. Troiano G, Caponio VCA, Adipietro I, Tepedino M, Santoro R, Laino L, Lo Russo L, Cirillo N, Lo Muzio L. (2019) Prognostic significance of CD68+ and CD163+ tumor associated macrophages in head and neck squamous cell carcinoma: A systematic review and meta-analysis. Oral Oncol. 93:66-75. PMID: 31109698.

Alternate Names

CD68, gp110, Macrosialin, SCARD1, SR-D1, SRD1

Gene Symbol

CD68

Additional CD68/SR-D1 Products

Product Documents for Rat CD68/SR-D1 ELISA Kit (Colorimetric)

Certificate of Analysis

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Product Specific Notices for Rat CD68/SR-D1 ELISA Kit (Colorimetric)

This product is for research use only and is not approved for use in humans or in clinical diagnosis. ELISA Kits are guaranteed for 6 months from date of receipt.

Citations for Rat CD68/SR-D1 ELISA Kit (Colorimetric)

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