Target: CD68.
Clone: KP1.
Specificity: Anti-CD68 antibody (clone KP1) activity is directed against human CD68.
Purification method: This monoclonal antibody was purified using multi-step affinity chromatography methods such as Protein A or G depending on the species and isotype.
Antigen Distribution: CD68 is found in the cytoplasm of monocytes/macrophages, fibroblasts, human peripheral blood lymphocytes, neutrophil primary and mast cell granules, large granular lymphocytes, basophils, basal epithelial cell layers, renal glomeruli, myeloid cells, endothelial cells, retinal epithelial cells, osteoblasts, fibroblast-like cells from bone marrow, and a wide-range of lymphoid neoplasms. CD68 is predominantly located in lysosomal membranes, with a small amount on the cell surface. Additionally, CD68 can be expressed in most hematopoietic cell lines by phorbol-induced differentiation; soluble CD68 can also be found in serum and urine.
Background: KP1 was originally used as a pan-monocytic/macrophage marker against CD68; however, CD68 is not a macrophage specific antigen and KP1 is known to stain neutrophils and other non-macrophage-like cells. KP1 reacts against CD68 in a wide range of healthy and disease-associated (rheumatoid arthritis and osteoarthritis)5 tissues as well as a variety of neoplasms, tumor cell lines, and tumor-associated macrophages. KP1 detects a fixation-resistant epitope that is likely glycan-based which is shared by many cell types.KP1 was developed by immunizing Balb/c mice against a lysosomal fraction of human lung . Hybridoma supernatants derived from spleen cells were screened on cryostat human lung and tonsil sections as well as paraffin wax sections of lung tissue fixed in formol saline.
Immunogen: Lysosomal fraction of human lung.
Concentration: ≥ 2.0 mg/ml.
Formulation: Sterile, preservative-free, solution in PBS. BSA and Azide free.
Purity: >95% by SDS-PAGE.
Endotoxin: <1.0 EU/mg as determined by the LAL method.
Aggregation: Aggregation level ≤ 5%.
Use: Products are for research use only. Not for use in diagnostic or therapeutic procedures.
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