Determination of hyaluronan molecular mass distribution in human breast milk.
Determination of hyaluronan molecular mass distribution in human breast milk.
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DOI:
10.1016/j.ab.2014.12.020
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发表时间:
2015-04-01
影响因子:
2.9
通讯作者:
Cowman, Mary K.
中科院分区:
文献类型:
--
作者:
Yuan, Han;Amin, Ripal;Ye, Xin;de la Motte, Carol A.;Cowman, Mary K.
Hyaluronan (HA) in human milk mediates host responses to microbial infection, via TLR4- and CD44-dependent signaling. Signaling by HA is generally size-specific. Because pure HA with average molecular mass (M) of 35 kDa can elicit a protective response in intestinal epithelial cells, it has been proposed that human milk HA may have a bioactive low M component. Here we report the size distribution of HA in human milk samples from twenty unique donors. A new method for HA analysis, employingion exchange (IEX) chromatography to fractionate HA by size, and specific quantification of each size fraction by competitive Enzyme Linked Sorbent Assay (ELSA), was developed. When separated into four fractions, milk HA with M ≤ 20 kDa, M ≈20-60 kDa, and M ≈ 60-110 kDa comprised an average of 1.5%, 1.4% and 2% of the total HA, respectively. The remaining 95% was HA with M≥110 kDa. Electrophoretic analysis of the higher M HA from thirteen samples showed nearly identical M distributions, with an average M of ∼440 kDa. This higher M HA component in human milk is proposed to bind to CD44 and to enhance human beta defensin 2 (HBD2) induction by the low M HA components.
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影响因子:
2.6
作者:
Ballard, Olivia;Morrow, Ardythe L.
通讯作者:
Morrow, Ardythe L.
影响因子:
4.3
作者:
Mahoney, DJ;Aplin, RT;Day, AJ
通讯作者:
Day, AJ
影响因子:
4.8
作者:
Hill, David R.;Kessler, Sean P.;de la Motte, Carol A.
通讯作者:
de la Motte, Carol A.
影响因子:
2.9
作者:
LEE, HG;COWMAN, MK
通讯作者:
COWMAN, MK
DOI:
10.1016/0885-4505(86)90077-0
发表时间:
1986-04-01
期刊:
BIOCHEMICAL MEDICINE AND METABOLIC BIOLOGY
影响因子:
--
作者:
DAHL, LB;DAHL, IMS;BORRESEN, AL
通讯作者:
BORRESEN, AL