title: Evaluation of immunomodulatory activity of two potential probiotic Lactobacillus strains by in vivo tests.
abstract: Here we evaluate the immunomodulatory function of two potential probiotic strains, Lactobacillus salivarius CICC 23174 and Lactobacillus plantarum CGMCC 1.557. Mice were fed with each Lactobacillus strain at different doses for several consecutive days. The effects of the two probiotic strains on immune organs, immune cells and immune molecules were investigated on days 10 and 20. Both Lactobacillus strains increased the spleen index, improved the spleen lymphocyte transformation rate, enhanced sIgA production and improved the number of CD11c(+) CD80(+) double-positive cells. L. plantarum CGMCC 1.557 was the more active strain in enhancing the phagocytic activity of macrophages, while, L. salivarius CICC 23174 was the more effective strain at maintaining the Th1/Th2 balance. This study suggests that these two Lactobacillus strains have beneficial effects on regulation of immune responses, which has promising implications for the development of ecological agents and functional foods.
authors.affiliation: College of Food Science and Engineering, Jilin Agricultural University, Changchun 130118, PR China; Key Laboratory of Jilin Province for Zoonosis Prevention and Control, Institute of Military Veterinary, Academy of Military Medical Sciences, Changchun 130122, PR China; Jiang su Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, PR China.
authors.forename: Dayong
authors.initials: D
authors.lastname: Ren
authors.affiliation: Key Laboratory of Jilin Province for Zoonosis Prevention and Control, Institute of Military Veterinary, Academy of Military Medical Sciences, Changchun 130122, PR China; Jiang su Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, PR China. Electronic address: lichang78@163.com.
authors.forename: Chang
authors.initials: C
authors.lastname: Li
authors.affiliation: College of Food Science and Engineering, Jilin Agricultural University, Changchun 130118, PR China; Key Laboratory of Jilin Province for Zoonosis Prevention and Control, Institute of Military Veterinary, Academy of Military Medical Sciences, Changchun 130122, PR China; Jiang su Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, PR China.
authors.forename: Yanqing
authors.initials: Y
authors.lastname: Qin
authors.affiliation: Academy of Animal Science and Veterinary Medicine in Jilin Province, Changchun 130062, PR China.
authors.forename: Ronglan
authors.initials: R
authors.lastname: Yin
authors.affiliation: Key Laboratory of Jilin Province for Zoonosis Prevention and Control, Institute of Military Veterinary, Academy of Military Medical Sciences, Changchun 130122, PR China; Jiang su Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, PR China.
authors.forename: Shouwen
authors.initials: S
authors.lastname: Du
authors.affiliation: Key Laboratory of Jilin Province for Zoonosis Prevention and Control, Institute of Military Veterinary, Academy of Military Medical Sciences, Changchun 130122, PR China.
authors.forename: Hongfeng
authors.initials: H
authors.lastname: Liu
authors.affiliation: Key Laboratory of Jilin Province for Zoonosis Prevention and Control, Institute of Military Veterinary, Academy of Military Medical Sciences, Changchun 130122, PR China; Jiang su Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, PR China.
authors.forename: Yanfang
authors.initials: Y
authors.lastname: Zhang
authors.affiliation: College of Food Science and Engineering, Jilin Agricultural University, Changchun 130118, PR China.
authors.forename: Cuiyan
authors.initials: C
authors.lastname: Wang
authors.affiliation: College of Food Science and Engineering, Jilin Agricultural University, Changchun 130118, PR China.
authors.forename: Fengjun
authors.initials: F
authors.lastname: Rong
authors.affiliation: Key Laboratory of Jilin Province for Zoonosis Prevention and Control, Institute of Military Veterinary, Academy of Military Medical Sciences, Changchun 130122, PR China; Jiang su Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, PR China. Electronic address: ningyij@hotmail.com.
authors.forename: Ningyi
authors.initials: N
authors.lastname: Jin
mesh_terms: D056704:Adaptive Immunity; D000818:Animals; D005260:Female; D007071:Immunoglobulin A, Secretory / Q000097:blood; D007155:Immunologic Factors / Q000008:administration & dosage*; D007778:Lactobacillus / Q000254:growth & development* / Q000276:immunology*; D008214:Lymphocytes / Q000276:immunology; D008264:Macrophages / Q000276:immunology; D008807:Mice, Inbred BALB C; D010587:Phagocytosis; D019936:Probiotics / Q000008:administration & dosage*
chemical_list: D007071:Immunoglobulin A, Secretory; D007155:Immunologic Factors
keywords: Immune response; Lactobacillus plantarum; Lactobacillus salivarius; Probiotics