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Cavalcanti ADD, Melo BAGD, Ferreira BAM, Santana MHA. Performance of the main downstream operations on hyaluronic acid purification. Process Biochem 2020. [DOI: 10.1016/j.procbio.2020.08.020] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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Yuan H, Amin R, Ye X, de la Motte CA, Cowman MK. Determination of hyaluronan molecular mass distribution in human breast milk. Anal Biochem 2015; 474:78-88. [PMID: 25579786 DOI: 10.1016/j.ab.2014.12.020] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2014] [Revised: 12/29/2014] [Accepted: 12/31/2014] [Indexed: 12/20/2022]
Abstract
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 20 unique donors. A new method for HA analysis, employing ion 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 to 60 kDa, and M∼60 to 110 kDa comprised averages of 1.5, 1.4, and 2.0% of the total HA, respectively. The remaining 95% was HA with M⩾110 kDa. Electrophoretic analysis of the higher M HA from 13 samples showed nearly identical M distributions, with an average M of approximately 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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Affiliation(s)
- Han Yuan
- Department of Chemical and Biomolecular Engineering, Polytechnic School of Engineering, New York University, Brooklyn, NY 11201, USA
| | - Ripal Amin
- Department of Chemical and Biomolecular Engineering, Polytechnic School of Engineering, New York University, Brooklyn, NY 11201, USA; Department of Pathobiology, Lerner Research Institute, Cleveland Clinic, Cleveland, OH 44195, USA; Department of Colorectal Surgery, Lerner Research Institute, Cleveland Clinic, Cleveland, OH 44195, USA
| | - Xin Ye
- Department of Chemical and Biomolecular Engineering, Polytechnic School of Engineering, New York University, Brooklyn, NY 11201, USA
| | - Carol A de la Motte
- Department of Pathobiology, Lerner Research Institute, Cleveland Clinic, Cleveland, OH 44195, USA; Department of Colorectal Surgery, Lerner Research Institute, Cleveland Clinic, Cleveland, OH 44195, USA
| | - Mary K Cowman
- Department of Chemical and Biomolecular Engineering, Polytechnic School of Engineering, New York University, Brooklyn, NY 11201, USA.
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Prebyl BS, Kaczmarek C, Tuinman AA, Baker DC. Characterizing the electrospray-ionization mass spectral fragmentation pattern of enzymatically derived hyaluronic acid oligomers. Carbohydr Res 2003; 338:1381-7. [PMID: 12801711 DOI: 10.1016/s0008-6215(03)00180-0] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
Oligosaccharides derived from hyaluronic acid by action of bovine testicular hyaluronidase (BTH) (hyaluronate 4-glycanohydrolase, E.C. 3.2.1.35) were characterized by mass spectrometry (MS) with electrospray-ionization mass spectrometry (ESIMS) and compared with results obtained by matrix-assisted laser desorption/ionization. Both oligomers with an odd number and even number of sugar units with molecular masses up to 8 kDa were observed in the ESI spectra. However, the generation of odd-numbered oligomers is not consistent with the regiospecificity of the enzyme and with the MALDI results, which indicated even-numbered oligomers exclusively. In addition, a third method of characterization, high-performance anion-exchange chromatography (HPAEC), showed only even-numbered oligomers. Relative intensities of the odd-numbered oligomers demonstrated in ESIMS a cone-voltage dependence suggesting the odd-numbered oligomers resulted from collisional activation. In order to achieve results by ESI that mirror results from other techniques, the cone voltage must be kept low and precisely controlled. This study displays the usefulness and possible vulnerabilities of ESIMS when utilized for carbohydrate analysis without corroborating data from other methods of analysis.
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Affiliation(s)
- Benjamin S Prebyl
- Department of Chemistry and the Center of Excellence for Structural Biology, The University of Tennessee, 667 Buchler Hall, Knoxville, TN 37996-1600, USA
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Chapter 16 Carbohydrates. ACTA ACUST UNITED AC 1992. [DOI: 10.1016/s0301-4770(08)61509-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
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Ben-bassat AA, Grushka E. Review High Performance Liquid Chromatography of Mono-And Oligosaccharides. ACTA ACUST UNITED AC 1991. [DOI: 10.1080/01483919108049306] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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