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Immunopharmacol Immunotoxicol. 2011 Dec;33(4):738-43. doi: 10.3109/08923973.2011.567988. Epub 2011 Jun 28.

Adjuvant effects of salidroside from Rhodiola rosea L. on the immune responses to ovalbumin in mice.

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Department of Veterinary Pharmacology, College of Animal Science and Veterinary Medicine, Jilin University, Jilin, PR China.


Salidroside, a major component of Rhodiola rosea L., was evaluated for its adjuvant effects on the immune responses in mice by ovalbumin (OVA) stimulation. BALB/c mice were immunized subcutaneously with OVA 100 μg or OVA 100 μg dissolved in saline containing alum (100 μg) or salidroside (12.5, 25, or 50 μg) on Days 1 and 15. Two weeks later (Day 28), blood samples were collected to analyze OVA-specific IgG, IgG1, and IgG2b antibodies. Meanwhile, splenocytes were harvested to assess lymphocyte proliferation, cytokines (IL-2, IL-4, and IFN-γ) production, and CD4(+), CD8(+) lymphocyte subsets. The results indicated that co-administration of salidroside with OVA significantly enhanced the ConA-, LPS-, and OVA-induced splenocyte proliferation, produced more IL-2, IL-4, IFN-γ, and IgG, IgG1, and IgG2b antibody levels, and increased the percentage of CD4(+), CD8(+) lymphocyte subsets than OVA alone. Thus, salidroside possess immunological adjuvant activity by regulating humoral and cellular immune responses in mice.

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