1. Two different fucosylated chondroitin sulfates: Structural elucidation, stimulating hematopoiesis and immune-enhancing effects.
- Author
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Niu Q, Li G, Li C, Li Q, Li J, Liu C, Pan L, Li S, Cai C, Hao J, and Yu G
- Subjects
- Animals, Immunosuppressive Agents chemistry, Mice, Mice, Inbred BALB C, Chondroitin Sulfates chemistry, Chondroitin Sulfates pharmacology, Hematopoiesis drug effects, Holothuria metabolism, Immunosuppressive Agents pharmacology
- Abstract
Two fucosylated chondroitin sulfates FCS
hp and FCSht were isolated from the sea cucumber Holothuria polii and Holothuria tubulosa, respectively. The NMR spectroscopy and HILIC-FTMS methods were applied for their detailed structural characterization. Chemical analysis indicated that the two FCSs all contained a chondroitin sulfate backbone chondroitin sulfate-like core and fucosyl branches of α-L-Fuc2,4S, α-L-Fuc4S or α-L-Fuc3,4S linked to O-3 of glucuronic acid residues. The main branches of FCShp and FCSht were monofucose, and the small amounts of di-, tri- and tetrafucose with α-1,3-linkage type were also detected. Finally, we investigated the immunomodulatory function of FCShp and FCSht in cyclophosphamide (CTX)-induced immunosuppressed mouse models. The results showed that FCShp and FCSht had beneficial effects on hematopoietic function recovery in CTX-induced bone marrow suppression mice. Notably, the α-L-Fuc2,4S was more important to the activity than α-L-Fuc3,4S. These results provided basis for developing the drugs to reduce side effects of chemotherapy., (Copyright © 2019 Elsevier Ltd. All rights reserved.)- Published
- 2020
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