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Rejuvenating activity of salidroside (SDS): dietary intake of SDS enhances the immune response of aged rats

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Abstract

It is well known that immune response decreases with aging. Salidroside (SDS), an antioxidant component isolated from the traditional Chinese medicine roseroot Rhodiola rosea, has been demonstrated to possess potent anti-aging and health-promoting activities. However, the mechanism underlying these activities is poorly understood. In this study, we clearly demonstrated that (1) dietary intake of SDS induced a considerable increase in total T cells (CD3+) and T helper cells (CD4+) in aged (21 months old) Wistar male rats; (2) SDS supplementation significantly increased the DTH response, a T cell-mediated immune response, in aged rats; and (3) SDS supplementation remarkably promoted the production of total anti-KLH IgG, anti-KLH IgG1, and anti-KLH IgG in aged rats without disturbing immune homeostasis. These indicate that SDS is able to counteract immunosenescence, thereby resulting in rejuvenation. Practically, SDS may be used to help the elderly to generate an improved response to vaccine with stronger humoral and cell-mediated immune responses.

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Acknowledgments

The authors thank Ms. Jie Ma and Mr. Hongmiao Wang for their aids in collection of the blood and tissues of the animals. The authors also thank Dr. Gamal El-Sokkary for his valuable comments and suggestions on this paper. This work was supported in part by a grant (2012CB114404) of Ministry of Science and Technology (MOST) of China.

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Correspondence to Shicui Zhang.

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Linlin Lu and Jiangshui Yuan contributed equally to this work.

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Lu, L., Yuan, J. & Zhang, S. Rejuvenating activity of salidroside (SDS): dietary intake of SDS enhances the immune response of aged rats. AGE 35, 637–646 (2013). https://doi.org/10.1007/s11357-012-9394-x

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  • DOI: https://doi.org/10.1007/s11357-012-9394-x

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