Investigating the effect of three antigens of Citrobacter freundii on rabbit's immune response

Other Title(s)

التحري عن تأثير ثلاثة مستضدات لجرثومة Citrobacter Freundii على الاستجابة المناعية في الارانب

Joint Authors

Muhammad, Rua Jasim
al-Samirrai, Ikram Abbas Abbud

Source

Iraqi Journal of Veterinary Medicine

Issue

Vol. 45, Issue 1 (30 Jun. 2021), pp.56-62, 7 p.

Publisher

University of Baghdad College of Veterinary Medicine

Publication Date

2021-06-30

Country of Publication

Iraq

No. of Pages

7

Main Subjects

Zoology
Veterinary Medicine

Topics

Abstract EN

Citrobacter freundii (C.

freundii) is responsible for a number of significant opportunistic infections.

The present research was aimed to estimate the immune response of rabbits immunized with whole cell sonicated antigen (WCSA), lipopolysaccharide (LPS), and DNA antigens (Ag) extracted from C.

freundii.

Twenty-four Albino rabbits of both sexes, with 2-3 kg body weight, were divided randomly into four groups (6 rabbits for each).

Two types of tests were performed including ELISA and skin test (delayed type hypersensitivity, DTH)).

The 1st group was immunized with WCSA (1000 μg/mL).

The 2nd group was immunized with LPS Ag at the same dose.

The 3rd group was immunized with DNA extracted Ag (0.083 μg/mL).

The 4th group (negative control) was injected with 1 mL PBS (pH 7.2) subcutaneously.

After 14 days, rabbits were given booster doses of same Ag.

The immunized animals showed significant increase of IgG and IL-6 concentration (P<0.05) following 28, 32, 46, 50 and 60 days of immunization in comparison with the negative control group.

Concerning DTH, it showed an increase in the means of induration and erythema, with significant differences (P˂0.05) exerted by the concentrated antigens in all immunized groups after 24 h and 48 h compared with diluted Ag and negative control group.

In conclusion, WCSA and LPS Ag, in comparison to DNA Ag, were observed to promote stronger humoral (IgG) and cellular (DTH and IL-6) immune responses.

DNA Ag, on the other hand, elicited a weaker humoral and cellular immune response than other Ag.

American Psychological Association (APA)

Muhammad, Rua Jasim& al-Samirrai, Ikram Abbas Abbud. 2021. Investigating the effect of three antigens of Citrobacter freundii on rabbit's immune response. Iraqi Journal of Veterinary Medicine،Vol. 45, no. 1, pp.56-62.
https://search.emarefa.net/detail/BIM-1274687

Modern Language Association (MLA)

Muhammad, Rua Jasim& al-Samirrai, Ikram Abbas Abbud. Investigating the effect of three antigens of Citrobacter freundii on rabbit's immune response. Iraqi Journal of Veterinary Medicine Vol. 45, no. 1 (2021), pp.56-62.
https://search.emarefa.net/detail/BIM-1274687

American Medical Association (AMA)

Muhammad, Rua Jasim& al-Samirrai, Ikram Abbas Abbud. Investigating the effect of three antigens of Citrobacter freundii on rabbit's immune response. Iraqi Journal of Veterinary Medicine. 2021. Vol. 45, no. 1, pp.56-62.
https://search.emarefa.net/detail/BIM-1274687

Data Type

Journal Articles

Language

English

Notes

Includes bibliographical references : p. 61-62

Record ID

BIM-1274687