TY  - JOUR
AU  - Knežević, Sanja
AU  - Kosanović, Dejana
AU  - Dragačević, Luka
AU  - Živković, Irena
AU  - Ilić, Vesna
AU  - Hajduković, Ljiljana
AU  - Savić, Olivera
AU  - Minić, Rajna
PY  - 2022
UR  - http://rimi.imi.bg.ac.rs/handle/123456789/1255
AB  - S. pneumoniae is an important human pathogen which has a polysaccharide capsule with virulent properties. This work aims to estimate the titres of S. pneumoniae specific IgG and IgA isotypes, with respect to age and sex. An in-house whole bacterial cell ELISA was used for the determination of relative levels and endpoint titres of IgG subclasses and IgA1 subclass specific for S. pneumoniae serogroup 1, and to quantify specific IgG1 and IgG2 levels. Significantly lower anti-pneumococcus IgG1 titres were found in older individuals, which was more pronounced in men. Lower IgG2 titres were detected in men over 50 years of age, in comparison to women under 50 years of age. The levels of IgG3 and IgG4 did not differ between different sex and age groups. Lower IgA1 levels were detected in male individuals in both age groups in comparison to females under 50 years of age. The levels of IgG1 showed a moderate correlation with IgG4 in younger individuals of both sexes (r = 0.61 in men and 0.63 in women) which was not noted in the older age group. We highlight the deficiency in humoral immunity in older people, especially male and suggest immunization of this population with pneumococcal vaccines.
PB  - Elsevier
T2  - Comparative Immunology, Microbiology and Infectious Diseases
T1  - Age and gender associated changes in immunoglobulin subclass levels specific to S. pneumoniae, serotype 1
SP  - 101834
VL  - 87
DO  - 10.1016/j.cimid.2022.101834
ER  - 

@article{
author = "Knežević, Sanja and Kosanović, Dejana and Dragačević, Luka and Živković, Irena and Ilić, Vesna and Hajduković, Ljiljana and Savić, Olivera and Minić, Rajna",
year = "2022",
abstract = "S. pneumoniae is an important human pathogen which has a polysaccharide capsule with virulent properties. This work aims to estimate the titres of S. pneumoniae specific IgG and IgA isotypes, with respect to age and sex. An in-house whole bacterial cell ELISA was used for the determination of relative levels and endpoint titres of IgG subclasses and IgA1 subclass specific for S. pneumoniae serogroup 1, and to quantify specific IgG1 and IgG2 levels. Significantly lower anti-pneumococcus IgG1 titres were found in older individuals, which was more pronounced in men. Lower IgG2 titres were detected in men over 50 years of age, in comparison to women under 50 years of age. The levels of IgG3 and IgG4 did not differ between different sex and age groups. Lower IgA1 levels were detected in male individuals in both age groups in comparison to females under 50 years of age. The levels of IgG1 showed a moderate correlation with IgG4 in younger individuals of both sexes (r = 0.61 in men and 0.63 in women) which was not noted in the older age group. We highlight the deficiency in humoral immunity in older people, especially male and suggest immunization of this population with pneumococcal vaccines.",
publisher = "Elsevier",
journal = "Comparative Immunology, Microbiology and Infectious Diseases",
title = "Age and gender associated changes in immunoglobulin subclass levels specific to S. pneumoniae, serotype 1",
pages = "101834",
volume = "87",
doi = "10.1016/j.cimid.2022.101834"
}

Knežević, S., Kosanović, D., Dragačević, L., Živković, I., Ilić, V., Hajduković, L., Savić, O.,& Minić, R.. (2022). Age and gender associated changes in immunoglobulin subclass levels specific to S. pneumoniae, serotype 1. in Comparative Immunology, Microbiology and Infectious Diseases
Elsevier., 87, 101834.
https://doi.org/10.1016/j.cimid.2022.101834

Knežević S, Kosanović D, Dragačević L, Živković I, Ilić V, Hajduković L, Savić O, Minić R. Age and gender associated changes in immunoglobulin subclass levels specific to S. pneumoniae, serotype 1. in Comparative Immunology, Microbiology and Infectious Diseases. 2022;87:101834.
doi:10.1016/j.cimid.2022.101834 .

Knežević, Sanja, Kosanović, Dejana, Dragačević, Luka, Živković, Irena, Ilić, Vesna, Hajduković, Ljiljana, Savić, Olivera, Minić, Rajna, "Age and gender associated changes in immunoglobulin subclass levels specific to S. pneumoniae, serotype 1" in Comparative Immunology, Microbiology and Infectious Diseases, 87 (2022):101834,
https://doi.org/10.1016/j.cimid.2022.101834 . .

TY  - JOUR
AU  - Lopandić, Zorana
AU  - Dragačević, Luka
AU  - Kosanović, Dejana
AU  - Burazer, Lidija
AU  - Gavrović-Jankulović, Marija
AU  - Minić, Rajna
PY  - 2022
UR  - http://rimi.imi.bg.ac.rs/handle/123456789/1335
AB  - In vivo animal models can provide worthy information on various aspects of asthma mechanism and pathogenesis. The genetic predisposition and phenotype of mice may affect the immune response itself. Here we compare the early immune response to Der p 2 or HDM allergen extract upon injection and inhalation in BALB/c and C57BL/6 mice. Female C57BL/6 and BALB/c mice were immunized with Der p 2 allergen subcutaneously followed by inhalation of Der p 2 or HDM extract. After challenge, the mice were euthanized; blood, bronchoalveolar lavage (BAL), spleens and lungs were collected. Cells from BAL were identified by May-Grünwald Giemsa staining and lung leukocyte populations were analyzed by flow cytometry. Serum antibody levels of Der p 2 specific IgE, IgG, IgG1 and IgG2a were assessed by ELISA, and cytokine secretion (IL-4, IFN-γ and IL-10) was evaluated upon stimulation with Der p 2 or HDM extract. The Th2 immune response was confirmed by elevated allergen-specific immunoglobulin E (IgE) and the allergic reaction was evidenced by infiltration of eosinophils and/or neutrophils into BAL. We found that BALB/c mice were inefficient in integrating local with systemic immune response, evidenced by almost no IgG or IgE production upon one subcutaneous injection and subsequent inhalation of Der p 2 allergen; also, the bronchoalveolar lavage infiltrate in these mice consisted of neutrophil infiltration, unlike C57BL/6 mice in which eosinophilic infiltrate predominated. The differences between BALB/c and C57BL/6 mice strains could be exploited for generating different types of responses to the Der p 2 allergen.
PB  - Elsevier
T2  - Journal of Immunological Methods
T2  - Journal of Immunological MethodsJournal of Immunological Methods
T1  - Differences in mouse strains determine the outcome of Der p 2 allergy induction protocols
SP  - 113382
VL  - 511
DO  - 10.1016/j.jim.2022.113382
ER  - 

@article{
author = "Lopandić, Zorana and Dragačević, Luka and Kosanović, Dejana and Burazer, Lidija and Gavrović-Jankulović, Marija and Minić, Rajna",
year = "2022",
abstract = "In vivo animal models can provide worthy information on various aspects of asthma mechanism and pathogenesis. The genetic predisposition and phenotype of mice may affect the immune response itself. Here we compare the early immune response to Der p 2 or HDM allergen extract upon injection and inhalation in BALB/c and C57BL/6 mice. Female C57BL/6 and BALB/c mice were immunized with Der p 2 allergen subcutaneously followed by inhalation of Der p 2 or HDM extract. After challenge, the mice were euthanized; blood, bronchoalveolar lavage (BAL), spleens and lungs were collected. Cells from BAL were identified by May-Grünwald Giemsa staining and lung leukocyte populations were analyzed by flow cytometry. Serum antibody levels of Der p 2 specific IgE, IgG, IgG1 and IgG2a were assessed by ELISA, and cytokine secretion (IL-4, IFN-γ and IL-10) was evaluated upon stimulation with Der p 2 or HDM extract. The Th2 immune response was confirmed by elevated allergen-specific immunoglobulin E (IgE) and the allergic reaction was evidenced by infiltration of eosinophils and/or neutrophils into BAL. We found that BALB/c mice were inefficient in integrating local with systemic immune response, evidenced by almost no IgG or IgE production upon one subcutaneous injection and subsequent inhalation of Der p 2 allergen; also, the bronchoalveolar lavage infiltrate in these mice consisted of neutrophil infiltration, unlike C57BL/6 mice in which eosinophilic infiltrate predominated. The differences between BALB/c and C57BL/6 mice strains could be exploited for generating different types of responses to the Der p 2 allergen.",
publisher = "Elsevier",
journal = "Journal of Immunological Methods, Journal of Immunological MethodsJournal of Immunological Methods",
title = "Differences in mouse strains determine the outcome of Der p 2 allergy induction protocols",
pages = "113382",
volume = "511",
doi = "10.1016/j.jim.2022.113382"
}

Lopandić, Z., Dragačević, L., Kosanović, D., Burazer, L., Gavrović-Jankulović, M.,& Minić, R.. (2022). Differences in mouse strains determine the outcome of Der p 2 allergy induction protocols. in Journal of Immunological Methods
Elsevier., 511, 113382.
https://doi.org/10.1016/j.jim.2022.113382

Lopandić Z, Dragačević L, Kosanović D, Burazer L, Gavrović-Jankulović M, Minić R. Differences in mouse strains determine the outcome of Der p 2 allergy induction protocols. in Journal of Immunological Methods. 2022;511:113382.
doi:10.1016/j.jim.2022.113382 .

Lopandić, Zorana, Dragačević, Luka, Kosanović, Dejana, Burazer, Lidija, Gavrović-Jankulović, Marija, Minić, Rajna, "Differences in mouse strains determine the outcome of Der p 2 allergy induction protocols" in Journal of Immunological Methods, 511 (2022):113382,
https://doi.org/10.1016/j.jim.2022.113382 . .