title: Immunomodulatory action of chronic exercise on macrophage and lymphocyte cytokine production in mice.
abstract: This study was designed to evaluate the effects of 8-week voluntary running exercise on cytokine production of macrophages and lymphocytes. Seven-week-old-male BALB/c inbred mice were divided into two groups: a group given voluntary exercise (exercise group, n=32), and the other, a non-exercise group (control group, n=32). Exercise consisted of spontaneous running in wheels for 3 days per week over 8 weeks. The levels of nitric oxide (NO2-) and interleukin (IL)-1 beta production by lipopolysaccharide (LPS)-stimulated peritoneal macrophages from the exercise group was significantly higher than that in the control group (P < 0.05-P < 0.01). In the exercise group, stimulation indices by concanavalin A (Con A) was significantly higher than they were in the control group (P < 0.05-P < 0.001). When compared with the control group, the exercise group showed a significant (P < 0.05) increase in the splenic lymphocyte production of IL-2 stimulated by Con A (449.5 +/- 28.2 and 853.7 +/- 116.0 pg 4 x 10(5) cells(-1) 48 h(-1) for the control group and the exercise group, respectively). IL-4 production of splenocytes stimulated by Con A in the exercise group (37.6 +/- 5.1 pg 4 x 10(5) cells(-1) 48 h(-1)) was higher than that in the control group (30.9 +/- 3.9 pg 4 x 10(5) cells(-1) 48 h(-1)); however, the difference was not statistically significant. These results suggest that 8-week voluntary running exercise effectively enhanced macrophage and lymphocyte functions in mice.
authors.affiliation: Department of Health and Physical Education, Gifu Pharmaceutical University, Gifu, Japan.
authors.forename: H
authors.initials: H
authors.lastname: Sugiura
authors.forename: H
authors.initials: H
authors.lastname: Nishida
authors.forename: H
authors.initials: H
authors.lastname: Sugiura
authors.forename: S M
authors.initials: SM
authors.lastname: Mirbod
mesh_terms: D000818:Animals; D016207:Cytokines / Q000096:biosynthesis*; D007376:Interleukin-2 / Q000096:biosynthesis; D015847:Interleukin-4 / Q000096:biosynthesis; D008214:Lymphocytes / Q000276:immunology* / Q000378:metabolism; D008262:Macrophage Activation; D017737:Macrophages, Peritoneal / Q000276:immunology* / Q000378:metabolism; D008297:Male; D051379:Mice; D008807:Mice, Inbred BALB C; D009043:Motor Activity / Q000276:immunology; D009569:Nitric Oxide / Q000378:metabolism; D010805:Physical Conditioning, Animal / Q000502:physiology*; D013154:Spleen / Q000276:immunology
chemical_list: D016207:Cytokines; D007376:Interleukin-2; D015847:Interleukin-4; D009569:Nitric Oxide