期刊
NUTRIENTS
卷 14, 期 14, 页码 -出版社
MDPI
DOI: 10.3390/nu14142901
关键词
lipopolysaccharide-like substance; Chlorella sorokiniana cell wall extract; growth stimulation; bone marrow cells; splenocytes
资金
- Kansas State University College of Veterinary Medicine Dean's funds [2015CVM-SMILE]
- Euglena Co., Ltd. [2017EU-2]
- National Science Foundation
- K-IDeANetworks of Biomedical Research Excellence (INBRE) of National Institute of Health [P20GM103418]
- Kansas State University
- [DBI-1726527]
This study found that the cell walls of Chlorella sorokiniana contain a lipopolysaccharide-like material, which can stimulate the growth of bone marrow cells and splenocytes, and increase the expression of specific cell subpopulations and cytokines.
A water extract derived from the isolated cell walls of Chlorella sorokiniana (C. sorokiniana, Chlorella water extract, CWE) was analyzed for the presence of lipopolysaccharide (LPS)-related material via the Limulus amebocyte lysate (LAL) assay and evaluated for its growth stimulation effect on the bone marrow cells and splenocytes in vitro cell cultures. The extract contained low levels of LPS-related material, and a mass spectrum suggested that the extract contained many components, including a low level of a lipid A precursor, a compound known as lipid X, which is known to elicit a positive response in the LAL assay. Treatment with the CWE dose- and time-dependently stimulated the growth of mouse bone marrow cells (BMCs) and splenocytes (SPLs). Treatment with the CWE also increased specific BMC subpopulations, including antigen-presenting cells (CD19(+) B cells, 33D1(+) dendritic cells and CD68(+) macrophages), and CD4(+) and CD8(+) T cells, but decreased the number of LY6G(+) granulocytes. Treatment with the CWE also increased cytokine mRNA associated with T cell activation, including TNF alpha, IFN gamma, and granzyme B in human lymphoblasts. The present study indicates that the cell wall fraction of C. sorokiniana contains an LPS-like material and suggests a candidate source for the bioactivity that stimulates growth of both innate and adaptive immune cells.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据