scholarly journals Assessment of Circulating Immune Complexes During Natural and Experimental Canine Leishmaniasis

Author(s):  
Manuela Gizzarelli ◽  
Eleonora Fiorentino ◽  
Nour El Houda Ben Fayala ◽  
Serena Montagnaro ◽  
Raquel Torras ◽  
...  
2021 ◽  
Vol 9 (4) ◽  
pp. 712
Author(s):  
Cristina Cacheiro-Llaguno ◽  
Nuria Parody ◽  
Marta R. Escutia ◽  
Jerónimo Carnés

During canine visceral leishmaniasis (CanL), due to Leishmania infantum (L. infantum), uncontrolled infection leads to a strong humoral immune response. As a consequence of the production of high antibody levels and the prolonged presence of parasite antigens, circulating immune complexes (CIC) are formed, which can be deposited in certain organs and tissues, inducing vasculitis, uveitis, dermatitis and especially glomerulonephritis and renal failure. A method to detect CIC and quantify their levels in serum samples from dogs infected with L. infantum has been recently described. It allowed demonstration of a correlation between CIC levels and disease severity. Thus, CIC measurement may be useful for diagnosis, assessment of disease progression and monitoring response to treatment. This is an interesting finding, considering that there remains an urgent need for identification of novel biomarkers to achieve a correct diagnosis and for optimal disease staging of dogs suffering from Leishmania infection. The objective of the present review is to shed light on the role of CIC in CanL, as well as to highlight their potential use not only as diagnostic and prognostic biomarkers but also as a valuable tool in vaccine development and new immunotherapy strategies to prevent or control disease outcome.


1996 ◽  
Vol 43 (1-10) ◽  
pp. 469-474 ◽  
Author(s):  
R. Lopez ◽  
R. Lucena ◽  
M. Novales ◽  
P. J. Ginel ◽  
E. Martin ◽  
...  

Author(s):  
K. I. Stosman ◽  
L. V. Lukovnikova

An examination was performed of 50 employees at an enterprise where they were in professional contact with beryllium. In most workers, it was detected an increase of interleukine-8, interferon- , growing level of immunoglobulin E and circulating immune complexes. It was shown that the contact with beryllium compounds leads to the interferon- level growth only in women. In men, alterations are identified in the direction of increased concentrations of common immunoglobulin E and circulating immune complexes.


BIO-PROTOCOL ◽  
2012 ◽  
Vol 2 (11) ◽  
Author(s):  
Uma Ranganathan ◽  
Ramalingam Bethunaickan ◽  
Alamelu Raja

Author(s):  
Pooja Madki ◽  
Mandya Lakshman Avinash Tejasvi ◽  
Geetha Paramkusam ◽  
Ruheena Khan ◽  
Shilpa J.

Abstract Objectives The aim of the present study is to evaluate the role of immunoglobulins (IgA, IgG, and IgM) and circulating immune complexes (CIC) as tumor marker in oral cancer and precancer patients. Materials and Methods The present study was performed on 45 individuals subdivided into three groups, that is, oral precancer, oral cancer and healthy individuals, and levels of immunoglobulins, and CIC was estimated by turbidometry and ELISA method. Results In the present study, the mean serum IgA levels in oral precancer were 161.00 ( ±  118.02) mg/dL, oral cancers were 270.67 ( ±  171.44) mg/dL, and controls were 133.73 ( ±  101.31) mg/dL. Mean serum levels of IgG in oral precancer were 1,430.87 ( ±  316) mg/dL, oral cancers were 1,234.27 ( ±  365.42) mg/dL, and controls were 593.87 ( ±  323.06) mg/dL. Conclusion We found that the levels of serum IgG and IgA were elevated consistently in precancer and cancer group, and Serum IgM levels were increased only in precancer. Also, significant increase in serum CIC levels were seen in oral precancer and cancer group on comparison with control.


1986 ◽  
Vol 60 (3) ◽  
pp. 239-243 ◽  
Author(s):  
K. Matsumura ◽  
Y. Kazuta ◽  
R. Endo ◽  
K. Tanaka ◽  
T. Inoue

AbstractThe presence of circulating immune complexes (CIC) in the sera of dogs infected with Dirofilaria immitis was detected by using a Clq-binding enzyme-linked immunosorbent assay. Specificity of this assay with different concentrations of heat-aggravated canine IgG (ACG) was observed, i.e., the ELISA readings, expressed as ug equivalents ACG/ml, increased with increasing amounts of ACG. The intra-assay variability was below 10%. The CIC levels of infected and uninfected dogs were 177–0± 104–7 ug/ml and 22–8±45–8 ng/ml (mean±SD), respectively. The highest level was observed in 12 dogs with amicrofilaraemic infection. Age distribution of CIC levels in the 23 infected dogs also showed a significant positive correlation. These findings suggested that the CIC are present in the sera of dogs with dirofilariasis and may relate to canine glomerulonephritis.


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