Western blot shows lysates of human milk. PVDF membrane was probed with 1 µg/mL of Mouse Anti-Human MFG-E8 Monoclonal Antibody (Catalog # MAB2767) followed by HRP-conjugated Anti-Sheep IgG Secondary Antibody (Catalog # ...read more
Simple Western lane view shows recombinant human (rh) MFG-E8, loaded at 50 ng/mL, and human milk, loaded at 0.2 mg/mL. A specific band was detected for MFG‑E8 at approximately 57-58 kDa (as indicated) using 50 ...read more
Mouse myeloma cell line NS0-derived recombinant human MFG-E8 Leu24-Cys387 Accession # Q08431
Specificity
Detects human MFG-E8 in direct ELISAs and Western blots. In direct ELISAs and Western blots, this antibody does not cross-react with recombinant human (rh) C1r, rhC1s, rhC2, or rmMFG-E8.
Source
N/A
Isotype
IgG2a
Clonality
Monoclonal
Host
Mouse
Gene
MFGE8
Purity Statement
Protein A or G purified from hybridoma culture supernatant
Innovator's Reward
Test in a species/application not listed above to receive a full credit towards a future purchase.
Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
12 months from date of receipt, -20 to -70 °C as supplied.
1 month, 2 to 8 °C under sterile conditions after reconstitution.
6 months, -20 to -70 °C under sterile conditions after reconstitution.
Buffer
Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied either lyophilized or as a 0.2 µm filtered solution in PBS.
Preservative
No Preservative
Concentration
LYOPH
Reconstitution Instructions
Reconstitute at 0.5 mg/mL in sterile PBS.
Notes
This product is produced by and ships from R&D Systems, Inc., a Bio-Techne brand.
Alternate Names for MFG-E8 Antibody (278901) [Unconjugated]
BA46
Breast epithelial antigen BA46
EDIL1
hP47
HsT19888
lactadherin
Lactahedrin
Medin
MFG1
MFGE8
MFG-E8
MFGM
milk fat globule-EGF factor 8 protein
Milk fat globule-EGF factor 8
O-acetyl disialoganglioside synthase
OAcGD3S
SED1
SPAG10
sperm associated antigen 10
sperm surface protein hP47
Background
Milk Fat Globulin Protein E8 (MFG-E8), also known as Lactadherin, MP47, breast epithelial antigen BA46, and SED1, is a 66‑75 kDa pleiotropic secreted glycoprotein that promotes mammary gland morphogenesis, angiogenesis, and tumor progression. MFG-E8 also plays an important role in tissue homeostasis and the prevention of inflammation (1). Human MGF-E8 contains one N-terminal EGF-like domain and two C‑terminal F5/8-type discoidin-like domains (2). It shares 63% and 61% aa sequence identity with comparable regions of mouse and rat MFG-E8, respectively. Shorter isoforms of human MFG-E8 may have N-terminal deletions (beginning near the end of the first discoidin-like domain), internal deletions (lacking either the EGF-like domain or the central region of the second discoidin-like domain), or C‑terminal deletions (truncated within the second discoidin-like domain) (3). A 50 aa internal proteolytic fragment of human MFG-E8 (known as Medin) is a major component of aortic medial amyloid deposits (4). MFG-E8 is released into the milk in complex with lipid-containing milk fat globules. It is also found in multiple other cell types including endothelial cells and smooth muscle cells of the vasculature, immature dendritic cells, at the acrosomal cap of testicular and epididymal sperm, and in epithelial cells of the endometrium (1). MFG-E8 binds to the Integrins alpha V beta 3 and alpha V beta 5 and potentiates the angiogenic action of VEGF through VEGF R2 (5, 6). It reduces inflammation and tissue damage in a variety of settings. MFG-E8 functions as a bridge between phosphatidylserine on apoptotic cells and Integrin alpha V beta 3 on phagocytes, leading to the clearance of apoptotic debris (7). It mediates the engulfment of apoptotic bodies in atherosclerotic plaques and prion-infected brain (8, 9) and of apoptotic B cells during germinal center reactions (10, 11). MFG-E8 also promotes the removal of excess Collagen in fibrotic lungs and the regeneration of damaged intestinal epithelia (12, 13). Its tissue-protective role impairs anti‑tumor immunity and chemotherapy-induced apoptosis (14). MFG-E8 in the breastmilk blocks rotavirus infection in nursing babies (15).
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Couto, J.R. et al. (1996) DNA Cell Biol. 15:281.
Yamaguchi, H. et al. (2010) Eur. J. Immunol. 40:1778.
Haggqvist, B. et al. (1999) Proc. Natl. Acad. Sci. USA 96:8669.
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Hanayama, R. et al. (2002) Nature 417:182.
Ait-Oufella, H. et al. (2007) Circulation 115:2168.
Kranich, J. et al. (2010) J. Exp. Med. 207:2271.
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Atabai, K. et al. (2009) J. Clin. Invest. 119:3713.
Bu, H.-F. et al. (2007) J. Clin. Invest. 117:3673.
Jinushi, M. et al. (2009) J. Exp. Med. 206:1317.
Kvistgaard, A.S. et al. (2004) J. Dairy Sci. 87:4088.
Limitations
This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.
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