Mechanism of action of Escherichia coli heat stable enterotoxin in a human colonic cell line.

نویسندگان
چکیده

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Mechanism of action of Escherichia coli heat stable enterotoxin in a human colonic cell line.

Escherichia coli heat stable enterotoxin (STa) caused Cl- secretion across T84 cell monolayers in a dose-dependent manner only when applied to the apical membrane surface and not when applied to the basolateral surface. Measurement of cAMP, cGMP, and free cytosolic Ca2+ in response to STa suggested that cGMP alone mediated the Cl- secretory response. Studies utilizing blockers of the Na+,K+-ATP...

متن کامل

Construction of Hybrid Gene of Hepatitis B Surface Antigen Carrying Heat-Stable Enterotoxin of Escherichia coli and Its Expression in Mammalian Cell Line

Hepatitis B surface antigen is the first genetically engineered vaccine licensed for human use. Various strategies have been proposed to obtain a vaccine that would bypass the need for injection. In this study, a non-toxic portion of heat-stable enterotoxin of Escherichia coli that is capable of adhering to epithelial cells was inserted at amino acid position 112 of hepatitis surface antigen. T...

متن کامل

The mechanism of action of Escherichia coli heat-stable toxin.

Holmgren, J. (1981) Nature (London) 292, 413417 Hughes, J . M., Murad, F., Chang, B. & Guerrant, R. L. (1978) Nature (London) 271, 755-756 Hughes, S., Warhurst, G., Turnberg, L. A,, Higgs, N. B., Giugliano, L. G. & Drasar, B. S. (1983) Gut 24 (2), 94-98 James, C., Dibley, M., Burke, V., Robinson, J. & Gracey, M. (1982) Clin. Expt. Immunol. 47, 3 4 4 2 Leppla, S. H. (1982) Proc. Natl Acad. Sci. ...

متن کامل

Properties of synthetically produced Escherichia coli heat-stable enterotoxin.

The properties of a synthetically produced peptide composed of the same primary structure of 18 amino acids described for human Escherichia coli heat-stable enterotoxin were compared with those of purified heat-stable toxin obtained by bacterial growth. The dosage required to evoke fluid secretion in the suckling mouse and rat ligated ileal loop assays was the same for both toxins. The antigeni...

متن کامل

Protection in rats immunized with Escherichia coli heat-stable enterotoxin.

Rats immunized with a semipurified preparation of the Escherichia coli heat-stable (ST) enterotoxin conjugated with a protein carrier were protected against challenge with semipurified or purified ST and viable organisms of multiple heterologous serotypes that produce only ST (LT-/ST+), but they were not protected against heal-labile (LT) toxin or viable strains which produce LT either alone (L...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Journal of Clinical Investigation

سال: 1988

ISSN: 0021-9738

DOI: 10.1172/jci113626