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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 
 
 

In vivo detection of a novel macrophage-derived protein involved in the regulation of mucus-like glycoconjugate secretion.

We previously described a novel 68,000 D macrophage-derived protein (MMS-68) that can stimulate mucus-like glycoconjugate (MLGC) secretion from cultured human airways, respiratory epithelial cells, and the ishikawa adenocarcinoma cell line. To better characterize this mucus secretagogue, we generated monoclonal antibodies against MMS-68 by injecting crushed SDS-PAGE gel slices containing this protein into Balb-C mice followed by fusion with SP2/0, a nonsecreting mouse myeloma cell line. A panel of monoclonal antibodies was produced that identified the 68,000 D MMS by immunoblot analysis and immunoprecipitation. The monoclonal antibodies detected MMS-68 in normal peripheral blood monocytes and pulmonary macrophages by cytofluorographic analysis and in human airways as determined by immunohistochemistry. Utilizing the monoclonal antibodies, an antigen-capture ELISA assay was developed. Statistically significant elevations in levels of MMS-68 were detected in bronchoalveolar lavage fluid (BALF) of chronic bronchitic subjects and cigarette smokers and in monocyte culture supernatants from steroid-dependent asthmatic patients compared to normal control subjects. The 68,000 D MMS is a potent secretagogue and may play an important role in the regulation of mucus secretion, especially in chronic bronchitis and steroid-dependent asthma.[1]

References

  1. In vivo detection of a novel macrophage-derived protein involved in the regulation of mucus-like glycoconjugate secretion. Sperber, K., Gollub, E., Goswami, S., Kalb, T.H., Mayer, L., Marom, Z. Am. Rev. Respir. Dis. (1992) [Pubmed]
 
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