PMID- 32387611 OWN - NLM STAT- Publisher LR - 20240227 IS - 1879-0003 (Electronic) IS - 0141-8130 (Linking) DP - 2020 May 6 TI - Structural characterization and biological activities of a novel polysaccharide containing N-acetylglucosamine from Ganoderma sinense. LID - S0141-8130(20)33174-3 [pii] LID - 10.1016/j.ijbiomac.2020.05.028 [doi] AB - A novel homogeneous heteropolysaccharide (GSPB70-S) with a molecular weight of 2.87 kDa was isolated from Ganoderma sinense. Structural analysis showed that GSPB70-S was composed of glucose, glucosamine, mannose, and galactose with a molar ratio of 12.90:3.70:2.26:1.00. The repeating structure units of GSPB70-S were characterized by the combined application of chemical methods and nuclear magnetic resonance. GSPB70-S contains a backbone of -->3)-beta-D-Glcp-(1 --> 4)-alpha-D-GlcpNAc-(1 --> 4)-alpha-D-Manp-(1 --> 3)-beta-D-Glcp-(1-->, with branches of beta-D-Glcp-(1-->, alpha-D-GlcpNAc-(1 --> and -->4)-alpha-D-Galp-(1-->. Scanning electron microscope (SEM) showed that GSPB70-S presented a long strip shape with different thicknesses, and there were many lamellar substances on the surface. Biological research showed that GSPB70-S inhibited the activity of alpha-glucosidase in vitro, increased the viability of RAW 264.7 macrophages, and promoted the release of NO. In addition, GSPB70-S showed good abilities to scavenge free radicals. CI - Copyright (c) 2020. Published by Elsevier B.V. FAU - Chen, Yiyu AU - Chen Y AD - Biotechnological Institute of Chinese Materia Medica, Jinan University, 601 Huangpu Avenue West, Guangzhou 510632, China. FAU - Ou, Xiaozheng AU - Ou X AD - Department of Natural Product Chemistry, Jinan University, 601 Huangpu Avenue West, Guangzhou 510632, China. FAU - Yang, Jianing AU - Yang J AD - Department of Pharmacology, Jinan University, 601 Huangpu Avenue West, Guangzhou 510632, China. FAU - Bi, Sixue AU - Bi S AD - Department of Pharmacology, Jinan University, 601 Huangpu Avenue West, Guangzhou 510632, China. FAU - Peng, Bao AU - Peng B AD - Biotechnological Institute of Chinese Materia Medica, Jinan University, 601 Huangpu Avenue West, Guangzhou 510632, China. FAU - Wen, Yao AU - Wen Y AD - Department of Natural Product Chemistry, Jinan University, 601 Huangpu Avenue West, Guangzhou 510632, China. FAU - Song, Liyan AU - Song L AD - Department of Pharmacology, Jinan University, 601 Huangpu Avenue West, Guangzhou 510632, China. Electronic address: tsly@jnu.edu.cn. FAU - Li, Chunlei AU - Li C AD - Department of Natural Product Chemistry, Jinan University, 601 Huangpu Avenue West, Guangzhou 510632, China. FAU - Yu, Rongmin AU - Yu R AD - Biotechnological Institute of Chinese Materia Medica, Jinan University, 601 Huangpu Avenue West, Guangzhou 510632, China; Department of Natural Product Chemistry, Jinan University, 601 Huangpu Avenue West, Guangzhou 510632, China. Electronic address: tyrm@jnu.edu.cn. FAU - Zhu, Jianhua AU - Zhu J AD - Biotechnological Institute of Chinese Materia Medica, Jinan University, 601 Huangpu Avenue West, Guangzhou 510632, China; Department of Natural Product Chemistry, Jinan University, 601 Huangpu Avenue West, Guangzhou 510632, China. Electronic address: tzhujh@jnu.edu.cn. LA - eng PT - Journal Article DEP - 20200506 PL - Netherlands TA - Int J Biol Macromol JT - International journal of biological macromolecules JID - 7909578 SB - IM OTO - NOTNLM OT - Biological activities OT - Ganoderma sinense OT - Heteropolysaccharide OT - Structure characterization COIS- Declaration of competing interest No conflict of interest exists in this work. EDAT- 2020/05/11 06:00 MHDA- 2020/05/11 06:00 CRDT- 2020/05/11 06:00 PHST- 2020/01/10 00:00 [received] PHST- 2020/04/21 00:00 [revised] PHST- 2020/05/04 00:00 [accepted] PHST- 2020/05/11 06:00 [entrez] PHST- 2020/05/11 06:00 [pubmed] PHST- 2020/05/11 06:00 [medline] AID - S0141-8130(20)33174-3 [pii] AID - 10.1016/j.ijbiomac.2020.05.028 [doi] PST - aheadofprint SO - Int J Biol Macromol. 2020 May 6:S0141-8130(20)33174-3. doi: 10.1016/j.ijbiomac.2020.05.028.