Mosaic pattern of lactase expression by villous enterocytes in human adult-type hypolactasia
Mosaic pattern of lactase expression by villous enterocytes in human adult-type hypolactasia
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人成人型低乳糖酶症中绒毛肠上皮细胞乳糖酶表达的马赛克模式
DOI:
10.1016/0016-5085(91)90203-w
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发表时间:
1991
期刊:
影响因子:
29.4
通讯作者:
S. Auricchio
中科院分区:
文献类型:
--
作者:
L. Maiuri;V. Raia;J. Potter;D. Swallow;M. Ho;R. Fiocca;G. Finzi;M. Cornaggia;C. Capella;A. Quaroni;S. Auricchio
Immunohistological analysis of the expression of lactase protein in adults with hypolactasia has been carried out using monoclonal antibodies. Eight different antibodies that recognize at least three distinct epitopes on the lactase protein each gave the same result. Strong brush border staining was observed in all the lactase-persistent adults. No staining at all was detected in 9 of the hypolactasic subjects. In the remaining 12 individuals a mosaic pattern of expression was observed: small patches of enterocytes stained strongly, whereas the surrounding areas showed no staining at all. Sucraseisomaltase, in contrast, showed no such mosaicism in these or in any of the other individuals. The mosaicism observed in the 12 hypolactasic individuals suggests that the differentiation of the columnar cells along the villus is not homogeneous. Furthermore, the existence of two patterns of expression of the lactase protein in the lactase-deficient individuals (i.e., absence of protein and mosaicism), if characteristic of the entire length of the intestine of the individuals tested, would suggest the existence of two phenotypes of adult-type hypolactasia in the population studied.
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DOI:
--
发表时间:
1989
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Beaulieu,JF;Nichols,B;Quaroni,A
通讯作者:
Quaroni,A
DOI:
10.1093/jnci/76.4.571
发表时间:
1986
期刊:
Journal of the National Cancer Institute
影响因子:
--
作者:
Quaroni,A
通讯作者:
Quaroni,A
DOI:
10.1073/pnas.85.24.9611
发表时间:
1988
影响因子:
11.1
作者:
Sweetser,DA;Hauft,SM;Hoppe,PC;Birkenmeier,EH;Gordon,JI
通讯作者:
Gordon,JI
DOI:
10.1073/pnas.86.4.1278
发表时间:
1989
影响因子:
11.1
作者:
Rubin,DC;Ong,DE;Gordon,JI
通讯作者:
Gordon,JI