Anti-Human WISP-1

Purified Recombinant Human WISP-1 (>98%)

This antigen affinity purified polyclonal antibody has been 0.2 µm filtered and lyophilized from modified Dulbecco’s phosphate buffered saline (1X PBS) pH 7.2 – 7.3 containing 5.0% w/v trehalose with no calcium, magnesium, or preservatives present.

Lyophilized

The lyophilized antigen affinity purified polyclonal antibody can be stored desiccated at -20°C to -70°C for twelve months from date of receipt. The reconstituted antibody can be stored for at least four weeks at 2-8°C. For long-term storage of the reconstituted antibody, aseptically aliquot into working volumes and store at -20°C to -70°C in a manual defrost freezer. Avoid Repeated Freeze Thaw Cycles. No detectable loss of activity was observed after six months.

Next Day Ambient

IHC (NBF/Par.): This antibody should give satisfactory staining results when used at a concentration of 5-15 µg/ml. The recommended secondary antibody for IHC is PN:G505. For chromogenic detection with high signal and low background use PN:D100 or PN:K107.

Goat Anti-Human Wnt-1 Inducible Signaling Pathway Protein 1 (WISP-1) recognizes Human WISP-1. This antigen affinity purified polyclonal antibody was purified using a proprietary chromatographic technique that includes covalently immobilizing the antigen proteins or peptides to agarose based beads. This purification method enhances specificity, reduces nonspecific binding of extraneous IgG and provides you with the most reliable reagent available for your early discovery research. In direct ELISAs and western blots, this antibody shows approximately 50% cross-reactivity with WISP-1.

WNT1 inducible signaling pathway protein 1 (WISP-1), also known as CCN4, is a secreted, heparin-binding glycoprotein belonging to the cysteine-rich CCN family (1-2). WISP-1 is expressed in heart, kidney, lung, pancreas, placenta, ovary, small intestine and spleen. It is a downstream regulator in the Wnt/Frizzled-signaling pathway and is associated with cell survival (3). WISP-1 promotes mesenchymal cell proliferation and osteoblastic differentiation while repressing chondrocytic differentiation. Therefore, WISP-1 plays an important regulatory role during bone development and fracture repair (4). It was reported that WISP-1 interacts with sulfated glycoconjugates, decorin and biglycan in the ECM of connective tissue, and possibly prevents their inhibitory activity in tumor cell proliferation (5). WISP-1 attenuates p53-mediated apoptosis in response to DNA damage through activation of AKT kinase and up-regulates the anti-apoptotic Bcl-X(L) protein (5). Mutated or spliced variants of WISP-1 have been implicated in various pathological conditions.