GLORIA

GEOMAR Library Ocean Research Information Access

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    Online Resource
    Online Resource
    Wiley ; 2015
    In:  Scandinavian Journal of Immunology Vol. 82, No. 4 ( 2015-10), p. 380-389
    In: Scandinavian Journal of Immunology, Wiley, Vol. 82, No. 4 ( 2015-10), p. 380-389
    Abstract: Lymphatic filariasis, a mosquito‐borne parasitic disease, affects more than 120 million people worldwide. Vaccination for filariasis by targeting different stages of the parasite will be a boon to the existing MDA efforts of WHO which required repeated administration of the drug to reduce the infection level and sustained transmission. Onset of a filaria‐specific immune response achieved through antigen vaccines can act synergistically with these drugs to enhance the parasite killing. Multi‐epitope vaccine approach has been proved to be successful against several parasitic diseases as it overcomes the limitations associated with the whole antigen vaccines. Earlier results from our group suggested the protective efficacy of multi‐epitope vaccine comprising two immunodominant epitopes from Brugia malayi antioxidant thioredoxin ( TRX ), several epitopes from transglutaminase ( TGA ) and abundant larval transcript‐2 ( ALT ‐2). In this study, the prophylactic efficacy of the filarial epitope protein ( FEP ), a chimera of selective epitopes identified from our earlier study, was tested in a murine model (jird) of filariasis with L3 larvae. FEP conferred a significantly ( P  〈   0.0001) high protection (69.5%) over the control in jirds. We also observed that the multi‐epitope recombinant construct ( FEP ) induces multiple types of protective immune responses, thus ensuring the successful elimination of the parasite; this poses FEP as a potential vaccine candidate.
    Type of Medium: Online Resource
    ISSN: 0300-9475 , 1365-3083
    URL: Issue
    RVK:
    Language: English
    Publisher: Wiley
    Publication Date: 2015
    detail.hit.zdb_id: 2020954-X
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
  • 2
    In: Parasite Immunology, Wiley, Vol. 36, No. 10 ( 2014-10), p. 475-484
    Abstract: The chromadorea abundant larval transcript ( ALT ) family of proteins contains ALT one of the most studied putative vaccine candidate in experimental filariasis. This study reports the characterization of Wuchereria bancrofti 20/22 (Wb20/22) as a member of chromadorea, the ALT family of proteins from the L3 stage of W. bancrofti . The high reactivity with serum from the endemic normal ( EN ) population suggests that Wb20/22 could be a target of elicit protective immunity. The glutamic acid‐rich region of Wb20/22 was predicted to harbour the longest linear B‐cell epitope by insilico prediction tools. The significance of this region was revealed by studying the mutant form of Wb20/22, without acidic domain ( WOAD ) which was cloned, and the immune response was compared with Wb20/22. The signal sequence of Wb20/22 was also an immunodominant region, and mutant construct without signal sequence ( WOSS ) was cloned and characterized. The peak antibody titre elicited by WOAD was higher than Wb20/22 or WOSS , which pointed to the immunomodulatory role of glutamic acid‐rich region. Wb20/22 elicited very high levels of IL ‐10 and diminished levels of IL ‐4 and IL ‐5 which could be the reason for low antibody titre. The prophylactic efficacy of WOAD conferred protection (62·26%) which was higher than Wb20/22 (49·82%) and WOSS (54·78%).
    Type of Medium: Online Resource
    ISSN: 0141-9838 , 1365-3024
    URL: Issue
    Language: English
    Publisher: Wiley
    Publication Date: 2014
    detail.hit.zdb_id: 2020808-X
    SSG: 12
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
  • 3
    In: Parasite Immunology, Wiley, Vol. 37, No. 12 ( 2015-12), p. 624-634
    Abstract: Understanding the modulation of the host‐immune system by pathogens‐like filarial parasites offers an alternate approach to prevent autoimmune diseases. In this study, we have shown that treatment with filarial proteins prior to or after the clinical onset of streptozotocin‐induced type‐1 diabetes (T1D) can ameliorate the severity of disease in BALB /c mice. Pre‐treatment with B rugia malayi adult soluble (Bm A S) or microfilarial excretory‐secretory ( Bm mf ES) or microfilarial soluble ( Bm mf S) antigens followed by induction of diabetes led to lowering of fasting blood glucose levels with as many as 57·5–62·5% of mice remaining nondiabetic. These proteins were more effective when they were used to treat the mice with established T1D as 62·5–71·5% of the mice turned to be nondiabetic. Histopathological examination of pancreas of treated mice showed minor inflammatory changes in pancreatic islet cell architecture. The therapeutic effect was found to be associated with the decreased production of cytokines TNF ‐α & IFN ‐γ and increased production of IL ‐10 in the culture supernatants of splenocytes of treated mice. A switch in the production of anti‐insulin antibodies from IgG2a to IgG1 isotype was also seen. Together these results provide a proof towards utilizing the filarial derived proteins as novel anti‐diabetic therapeutics.
    Type of Medium: Online Resource
    ISSN: 0141-9838 , 1365-3024
    URL: Issue
    Language: English
    Publisher: Wiley
    Publication Date: 2015
    detail.hit.zdb_id: 2020808-X
    SSG: 12
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...