The effects of the two antipsychotic drugs, chlorpromazine and haloperidol, the focus of this study, on cell-mediated immunity in male ICR mice. The peripheral blood WBC count decreased significantly in both cholorpromazine and haloperidol. The absolute lymphocyte count decreased only in the haloperidol-treated groups. The absolute number of thy-1-bearing cells described in both the chlorpromazine and haloperidol groups, the most remarkable effects evidencing itrself in the booster groups of higher dosage chlorpromazine (15 mg/kg), and lower and higher-dosage haloperidol (1 mg/kg and 5 mg/kg). The absolute spleen T-lymphocyte count was decreased significantly in the chlorpromazine higher-dosage booster-dose group and the haloperidol higher-dosage (5 mg/kg) single-dose group and the haloperidol lower and higher-dosage (1 mg/kg and 5mg/kg) booster-dose group. Also, chlorpromazine and haloperidol significantly impaired the in-vitro lymphocyte response to phytohemagglutinin (PHA) and produced a negative reaction of the delayed-hypersensitivity type induced by BCG vaccination. These findings suggest that chlorpromazine and haloperidol suppress the cellular immune responses in mouse.
Animal ; Antipsychotic Agents/toxicity* ; Immune Tolerance/drug effects ; Immunity, Cellular/drug effects* ; Male ; Mice ; Mice, Inbred ICR

This study was purposed to investigate the effects of magnetic nanoparticle of Fe3O4 (Fe3O4-MNPs) on murine immune system. ICR mice were assigned randomly into four groups which were treated with normal saline, low, middle and high dose of MNP-Fe3O4 respectively. The mice were killed after being exposed by intragastric administration for 2 weeks. The ratios of spleen weight to body weight, lymphocyte transformation rate in spleen suspension and phagocytic index of macrophage in abdominal cavity were detected. The results showed that the ratios of spleen weight to body weight in Fe3O4-MNP groups were not significantly different in comparison with the control (p > 0.05). The lymphocyte transformation rate in spleen suspension in Fe3O4-MNP groups were all higher than that in control group (-0.1775 +/- 0.0246), especially in the middle dose group (0.1833 +/- 0.0593) (p < 0.05), and the phagocytic index of macrophages in abdominal cavity of middle dose group (0.2051 +/- 0.0213) was higher than that of control group and other two Fe3O4-MNP group (low dose 0.1538 +/- 0.0100, high dose 0.1511 +/- 0.0184) (p < 0.05). It is concluded that suitable dose of Fe3O4-MNP can enhance the cellular immune activity and phagocytic function of macrophages of mice.
Animals ; Immunity, Cellular ; Lymphocytes ; drug effects ; Macrophages ; drug effects ; Magnetite Nanoparticles ; administration & dosage ; Mice ; Mice, Inbred ICR ; Phagocytosis

OBJECTIVETo investigate whether cellular immunity and humoral immunity are involved in trichlorethylene (TCE)-induced mixed allergy, then provide the scientific basis for the mechanism of this disease.

METHODSGuinea pigs and rats were tested for this study by application of guinea pig maximization test (GPMT), the animals were randomly divided into negative control, positive control and TCE treatment groups. Animals of these groups were administrated with olive oil, 2, 4-dinitrochlorobenzene (DNCB), and TCE, respectively, by intradermal injection. After TCE administration, rat peripheral blood samples were collected by flow cytometry to detect lymphocytes CD3⁺, CD4⁺, CD8⁺. Guinea pig peripheral blood samples were collected to detect the levels of IgG, IgA, IgM, C3, C4, and the spleens were taken out from guinea pigs after various treatment, mRNA expression of GATA3, T-bet, CTLA4 and Foxp3 in lymphocytes of guinea pig spleen was detected by real-time fluorescent PCR assay. Additionally, TCE allergic dermatitis patients were selected for the study, the peripheral blood samples were collected from the TCE patients group and control group, quantitative PCR was applied to detect mRNA expression of immune-related genes Foxp3, GATA3, CTLA4, T-bet.

RESULTSTCE induced obvious skin allergic reaction in guinea pigs, the sensitization rate was 83.3%, IgG levels in TCE group and positive control increased significantly. Additionally, mRNA expression levels of GATA3, T-bet, CTLA4 significantly elevated in TCE group and positive control, but Foxp3 mRNA levels decreased. The lymphocytes CD3⁺ ratio in TCE group and positive control of rats was higher than that in negative control, we found that there was no statistical difference of CD4⁺, CD8⁺, CD4⁺/CD8⁺ between TCE group and negative control of rats. The mRNA expression levels of Foxp3, GATA3, CTLA4 in TCE patients increased by 115%, 97%, 241%, respectively as compared with the control, T-bet levels decreased by 47%when compared with the control.

CONCLUSIONSTCE could induce obvious changes of cellular immunity and humoral immunity in guinea pigs, rats, and TCE patients, these findings indicated that TCE-induced immunological disorder belongs to the mixed allergy with involvment of cellular immunity and humoral immunity, the mixed allergy might be type IV and type II allergy.

Allergens ; Animals ; CTLA-4 Antigen ; Guinea Pigs ; Humans ; Hypersensitivity ; Immunity, Cellular ; drug effects ; Immunity, Humoral ; drug effects ; Lymphocytes ; RNA, Messenger ; Rats ; Spleen ; Trichloroethylene ; toxicity

OBJECTIVETo examine the effect of simazine on selected immune parameters in BALB/c mice.

METHODSSimazine (90, 200, 400 mg/kg) was administrered by oral gavage for 21 days in adult BALB/c mice. The negative control group unith distilled water and positive control group administered with cyclophosphamide in abdominal cavity were also established. After the last simazine dose, the mice were sacrificed, and blood, spleens, and thymuses were collected and processed for detection. The relative weight of spleen and thymus was calculated. The rate of T cell in spleen and the concentration of IL-2, IL-4, IgG and IgM were detected by ELISA.

RESULTSThe weights of mice were decreased in 200 mg/kg and 400 mg/kg simazine groups. Thymus and spleen weights were decreased in 200 mg/kg and 400 mg/kg simazine groups compared with the negative control group. The concentration of IL-2, IL-4, IgG and IgM in serum of 200 mg/kg group were (108.50 +/- 3.20) pg/ml, (36.54 +/- 3.36) pg/ml, (46.25 +/- 7.41) μg/ml, (17.58 +/- 2.23) μg/ml respectively;The concentration of IL-2, IL-4, IgG and IgM in serum of 400 mg/kg group were (85.70 +/- 4.00) pg/ml, (35.92 +/- 2.29) pg/ml, (40.08 +/- 6.80) μg/ml, (11.92 +/- 3.23) μg/ml respectively (P < 0.05 or P < 0.01). These results were decreased significantly compared with negative group.

CONCLUSIONSimazine can inhibit the cellular immune function and the humoral immune function.

Animals ; Cytokines ; blood ; Female ; Herbicides ; toxicity ; Immunity, Cellular ; drug effects ; Immunity, Humoral ; drug effects ; Immunoglobulin M ; blood ; Male ; Mice ; Mice, Inbred BALB C ; Simazine ; toxicity ; T-Lymphocytes ; drug effects

OBJECTIVETo evaluate the effects of ethyl-acetate fraction (EAF) of extracts from Tetrastigma hemsleyanum Diels et. Gilg (TDG) on immune functions of ICR mice.

METHODSICR mice were exposed to different doses of EAF for 15 or 30 days and then their immune functions were analyzed, including ConA-induced splenic lymphocyte transformation, SRBC-induced delayed type hypersensitivity response, serum hemolysin analysis, antibody-producing cells, peritoneal macrophage phagocytized chicken red blood cells, natural killer cell activity, and serum level of cytokines.

RESULTSEAF of extracts from TDG at different doses had various effects on immune functions of ICR mice. As compared with the controls, it increased the mouse spleen lymphocyte transformation induced by ConA, the left-hind voix pedis thickness and the number of plague forming cells (PFCs) at the dose of 1.82 mg/mL, 5.48 mg/mL, and 9.12 mg/mL, respectively; increased the ink clearance ability at the dose of 0.91 mg/mL, 1.82 mg/mL, 5.48 mg/mL, and 9.12 mg/mL, respectively; increased the phagocytosis index of mononuclear-macrophages and production of serum interferon-gamma (IFN-gamma) at the dose of 5.48 mg/mL; and could promote the production of serum tumor necrosis factor-alpha (TNF-alpha) at the dose of 9.12 mg/mL.

CONCLUSIONEAF of extracts from TDG can regulate mouse immune functions in vivo.

Acetates ; pharmacology ; Animals ; Antibody Formation ; drug effects ; Enzyme-Linked Immunosorbent Assay ; Immunity, Cellular ; drug effects ; Mice ; Mice, Inbred ICR ; Plant Extracts ; pharmacology ; Vitaceae ; chemistry

AIM AND METHODSThe effect of intrahippocampal microinjection of noradrenaline (NA) and its receptors antagonists and agonists on cellular immune functions were investigated in normal and adrenalectomy rat by determine the proliferative activity of Con A-stimulated splenic lymphocytes in MTT method and natural killer (NK) cell activity.

RESULTS(1) In normal group, the proliferative activity of Con A-Stimulated splenic lymphocytes were inhibited and the activity of NK cell were reduced with microinjection NA and beta1-, beta2-adrenergic receptor agonists Dobutamine (Dob, 4 microl, 6.0 x 10(-3) moL/L), Metaproterenol (Met, 4 microl, 8.0 x 10(-3) mol/L), compared with their intensity of effect, NA > Met > Dob; the immunosuppression effect induced by NA was partly hindered by alpha- and beta-receptor antagonists, phentolamine (Phen, 2 microl, 1.6 x 10(-2) mol/L) and propranolol (Prop, 2 microl, 1.6 x 10(-3) mol/L), and the action of Prop was more evident. (2) In adrenalectomy group, immunosuppression effect induced by NA was unconspicuous.

CONCLUSIONThe results suggested that NA in hippocampus could inhibit distinctly cellular immune functions, which was predominantly mediated by beta2- adrenergic receptor with a minor contribution of beta1- and alpha- adrenergic receptors. Moreover, keeping intact construction and function of adrenal gland have an important role in the effect of NA on cellular immune function.

Adrenergic Agonists ; pharmacology ; Animals ; Hippocampus ; drug effects ; Immunity, Cellular ; drug effects ; Killer Cells, Natural ; immunology ; Lymphocytes ; immunology ; Microinjections ; Norepinephrine ; pharmacology ; Rats ; Rats, Wistar ; Spleen ; cytology ; immunology

OBJECTIVETo investigate the effects of Compound Glycyrrhizin Injection (CGI) on liver function and cellular immunity of children with infectious mononucleosis complicated liver impairment (IM-LI) and to explore its clinical therapeutic effect.

METHODSForty-two patients with IM-LI were randomly assigned, according to the randomizing number table, to two groups, 20 in the control group and 22 in the treated group. All the patients were treated with conventional treatment, but to those in the treated group, CGI was given additionally once a day, at the dosage of 10 ml for children aged below 2 years, 20 ml for 2-4 years old, 30 ml for 5-7 years old and 40 ml for 8- 12 years old, in 100-200 ml of 5% glucose solution by intravenous dripping. The treatment lasted for 2 weeks. T lymphocyte subsets and serum levels of alanine transaminase (ALT), aspartate aminotransferase (AST) and total bilirubin (TBil) were detected before and after treatment. Besides, a normal control group consisting of 20 healthy children was also set up.

RESULTSBaseline of the percentage of CD3 + , CD8 + lymphocyte and serum levels of ALT, AST, TBiL in the children with IM-LI were markedly higher, while the percentage of CD4 + lymphocyte and the CD4 + /CD8 + ratio was markedly lower in IM-LI children as compared with the corresponding indices in the healthy children ( P<0.01). These indices were improved after treatment in both groups of patients, but the improvement in the treated group was better than that in the control group (P<0.01).

CONCLUSIONCellular immunity dysfunction often occurs in patients with IM-LI, and CGI treatment can not only obviously promote the recovery of liver function, but also regulate the immune function in organism.

Child ; Child, Preschool ; Female ; Glycyrrhizic Acid ; administration & dosage ; adverse effects ; therapeutic use ; Humans ; Immunity, Cellular ; drug effects ; Infant ; Infectious Mononucleosis ; complications ; drug therapy ; immunology ; physiopathology ; Injections ; Liver ; drug effects ; physiopathology ; Liver Diseases ; drug therapy ; Male ; T-Lymphocyte Subsets ; drug effects

OBJECTIVETo prepare the oral solution of egg yolk hepatitis B virus (HBV)-specific transfer factor (EYHBV-TF) and evaluate its immunological activity as an immune regulator against hepatitis B.

METHODSFrom hens immunized with the Hepatitis B vaccine the egg yolk was isolated to extract the specific transfer factor EYHBV-TF, and its physicochemical properties were examined. Leukocyte adhesion inhibition test (LAI) was performed to detect the immunogenic activity of EYHBV-TF. The solution of EYHBV-TF was then administered orally in normal mice, and the specific cellular immune activity induced was assayed with delayed type skin hypersensitivity test (DTH), with the non-specific immune activity assessed with immune organ index. The immune responses induced by oral EYHBV-STF solution were compared with those by EYHBV-STF injection and by different dosages (injection and oral) of porcine spleen HBV-specific transfer factor (PSHBV-STF), porcine spleen nonspecific transfer factor, and egg yolk extracts from non-immunized hens.

RESULTSThe prepared EYHBV-STF oral solution, which met the standards for biological products, could inhibit leukocyte adhesion in vitro and significantly enhance mouse foot pad swelling, demonstrating its capability of transferring antigen-specific delayed type hypersensitivity reactions to naive recipient. EYHBV-STF oral solution also significantly improved the immune organ index in mice (P<0 01) with similar effects to those caused by EYHBV-STF injections and by PSHBV-STF injection and oral solution.

CONCLUSIONOrally administered EYHBV-STF and EYHBV-STF injection both possess hepatitis B antigen-specific cellular immune activity and can significantly enhance specific cellular immune responses.

Animals ; Chickens ; Egg Yolk ; chemistry ; Hepatitis B ; drug therapy ; Hepatitis B Antigens ; Hepatitis B virus ; drug effects ; Immunity, Cellular ; Immunization ; Mice ; Swine ; Transfer Factor ; administration & dosage ; pharmacology

Listeria monocytogenes (Lm) is zoonotic pathogen that can cause listeriosis, and vaccine is one of the effective methods to prevent this pathogen infection. In this study, we developed a novel vaccine that is a mixture of inactivated bacteria and Montanide™ ISA 61 VG, a mineral oil adjuvant, and evaluated the safety and immune response characteristics of this vaccine. The mice immunized with the ISA 61 VG adjuvant had high safety, and it could induce significantly higher titer of anti-listeriolysin O (LLO) antibody and higher value of IgG2a/IgG1 ratio compared with the group without the adjuvant. In particular, it could provide 100% immune protection against lethal doses of Lm challenge in mice. In summary, ISA 61VG adjuvant significantly enhanced the ability of inactivated listeria vaccine to induce humoral and cellular immune responses, thereby enhanced the protective immune response in the host, and it is a potential vaccine candidate for the prevention of Lm infection in humans and animals.
Adjuvants, Immunologic ; pharmacology ; Animals ; Hemolysin Proteins ; immunology ; pharmacology ; Immunity, Cellular ; drug effects ; Listeria monocytogenes ; immunology ; Listeriosis ; prevention & control ; Mice ; Mice, Inbred BALB C ; Vaccines, Inactivated ; immunology

OBJECTIVETo observe the effects of Xiaochaihu decoction and different herbal formulation of componenton on inhibiting H22 mouse solid liver cancer and on the immune function, for approaching the dose-effect relationship and compatibility mechanism.

METHODTransplanted H22 liver the cancer to mice, filling on high, moderate, low dose of mice in the xiaochaihu decoction drug (27, 13.5, 6.75 g x kg(-1)), 5-FU intraperitoneal injection (20 mg x kg(-1)) as positive control. After being administered for 10 days, we determined the cancer weight, body weight, spleen index and thymus gland index for studying the dose-effect relationship. And we studied compatibility rule of Xiaochaihu decoction and the different herbal formulations of its components by using the same method. Mice in the Xiaochaihu decoction group (13.5 g x kg(-1)) and Ginseng-Chinese Date-Licorice Root apozem group (5 g x kg(-1)) were given the medicines for 10 days to observe the weight of tumor, body weight, spleen index, the NK cell activity, proliferation of the T lymphocytes and IL-2 level.

RESULTGrowth of H22 mouse liver cancer was markedly inhibited in high, moderate, low dose group; the inhibiting rates were 49.66%, 48.52%, 36.91%, respectively; the optimal administration dose was moderate. In the study of compatibility rule, only inhibiting rates of Ginseng-Chinese Date-Licorice Root apozem group and Xiaochaihu decoction group exceed 30%; the inhibiting rates were 41.55% and 43.65%. As compared with normal group, spleen index of three dose groups and the different herbal formulation groups was evidently increased (P < 0.01); thymus gland index of the different herbal formulation groups was significant decreased (P < 0.05); thymus gland index and body weight of 5-FU group were evidently decreased (P < 0.001). As compared the model group, the NK cell activity, proliferation of the T lymphocytes and IL-2 level of Xiaochaihu decoction were remarkably increased (P < 0.001); the NK cell activity and IL-2 level of Ginseng-Chinese Date-Licorice Root group were remarkably increased (P < 0.05); the NK cell activity and proliferation of the T lymphocytes and IL-2 level of 5-FU group were remarkable decreased (P < 0.01). As comparing with the normal control group ,body weight of 5-FU group was evidently decreased (P < 0.05).

CONCLUSIONXiaochaihu decoction and Ginseng-Chinese Date-Licorice Root group can markedly inhibit the growth of H22 mouse solid liver cancer and improve the immune function of tumor-bearing mice. The inhibiting effect probably closely related with improving the tumor-bearing host immune function. There is a hint that compatibility Ginseng-Chinese Date-Licorice Root of strengthening body resistance is the core of inhibiting effect.

Animals ; Dosage Forms ; Drugs, Chinese Herbal ; chemistry ; pharmacology ; therapeutic use ; Glycyrrhiza ; chemistry ; Immunity, Cellular ; drug effects ; Interleukin-2 ; metabolism ; Killer Cells, Natural ; drug effects ; metabolism ; Liver Neoplasms, Experimental ; drug therapy ; Male ; Mice ; Panax ; chemistry ; T-Lymphocytes ; drug effects ; metabolism