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Analysis of the specificity of human antibodies to antigens of Leishmania braziliensis braziliensis

Análise da especificidade de anticorpos humanos a antígenos de Leishmania braziliensis braziliensis

Abstracts

The antigenicity of promastigotes of Leishmania braziliensis braziliensis (L. b.braziliensis) treated with 1% sodium desoxycholate in 10 mM Tris-Hcl pH 8.2 was analysed by immunoblot using as probes sera from American cutaneous leishmaniasis (ACL), American visceral leishmaniasis (AVL), schistosomiasis, malaria and Chagas' disease. The ACL sera reacted constantly with a 60 kD band. No reactivity to this protein was observed with sera from the other diseases above mentioned indicating that the 60 kD protein may be used in serodiagnosis for ACL.

Antigens of Leishmania braziliensis braziliensis; Serodiagnosis of American cutaneous leishmaniasis


A antigenicidade de promastigotas de Leishmania braziliensis braziliensis tratadas com desoxicolato de sódio 1% tampão TrisHCl 10 mM pH 8.2 foi determinada por immunoblot usando soros de pacientes com leishmaniose cutânea e mucocutânea, leishmaniose visceral, esquistossomose, malária e doença de Chagas. Os soros de pacientes com leishmaniose cutânea e mucocutânea apresentaram reação positiva com uma banda de 60 kD. Não se observou reatividade para esta fração em soros de pacientes com outras doenças parasitárias acima mencionadas, indicando que esta pode ser utilizada no sorodiagnóstico de leishmaniose tegumental.


ORIGINAL ARTICLES

Analysis of the specificity of human antibodies to antigens of Leishmania braziliensis braziliensis

Análise da especificidade de anticorpos humanos a antígenos de Leishmania braziliensis braziliensis

Aoi Masuda; Sueli Fátima do Nascimento; Carmem Silvia Guerra; Gláucia da Silva Paranhos; Antonio Walter Ferreira

Laboratório de Sorologia e Imunologia do Instituto de Medicina Tropical de São Paulo, SP, Brasil

Address for correspondence Address for correspondence: Dr. Antonio Walter Ferreira Instituto de Medicina Tropical de São Paulo Av. Dr. Enéas de Carvalho Aguiar, 470 CEP 05403 São Paulo, SP, Brasil

SUMMARY

The antigenicity of promastigotes of Leishmania braziliensis braziliensis (L. b.braziliensis) treated with 1% sodium desoxycholate in 10 mM Tris-Hcl pH 8.2 was analysed by immunoblot using as probes sera from American cutaneous leishmaniasis (ACL), American visceral leishmaniasis (AVL), schistosomiasis, malaria and Chagas' disease. The ACL sera reacted constantly with a 60 kD band. No reactivity to this protein was observed with sera from the other diseases above mentioned indicating that the 60 kD protein may be used in serodiagnosis for ACL.

Key words:Antigens of Leishmania braziliensis braziliensis; Serodiagnosis of American cutaneous leishmaniasis.

RESUMO

A antigenicidade de promastigotas de Leishmania braziliensis braziliensis tratadas com desoxicolato de sódio 1% tampão TrisHCl 10 mM pH 8.2 foi determinada por immunoblot usando soros de pacientes com leishmaniose cutânea e mucocutânea, leishmaniose visceral, esquistossomose, malária e doença de Chagas. Os soros de pacientes com leishmaniose cutânea e mucocutânea apresentaram reação positiva com uma banda de 60 kD. Não se observou reatividade para esta fração em soros de pacientes com outras doenças parasitárias acima mencionadas, indicando que esta pode ser utilizada no sorodiagnóstico de leishmaniose tegumental.

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ACKNOWLEDGEMENTS

The authors greatefully acknowledge Dr. Roberto Badaró for kindly provinding sera of patients with specific diagnosis of leishmaniasis caused by L. b. braziliensis. Paulo de Oliveira and Rivaldo de Souza Cardoso for the excellent Technical assistance and Ceei Corrêa Godoi de Angelis and Eunice Bonfim Pinto for editorial assistance.

This work was partially supported by Fundação de Amparo à Pesquisa do Estado de São Paulo - 86/2389, by the UNDP/WORLD/ BANK/WHO Special Programme for Research and Training in Tropical Diseases (ID - 870 250); by Laboratório de Investigação Médica - HC-FMUSP - (LIM-48); and by FINEP (43.88.0689/00).

Recebido para publicação em 1/2/1989.

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  • Address for correspondence:
    Dr. Antonio Walter Ferreira
    Instituto de Medicina Tropical de São Paulo
    Av. Dr. Enéas de Carvalho Aguiar, 470
    CEP 05403 São Paulo, SP, Brasil
  • Publication Dates

    • Publication in this collection
      14 Oct 2011
    • Date of issue
      Aug 1989

    History

    • Received
      01 Feb 1989
    Instituto de Medicina Tropical de São Paulo Av. Dr. Enéas de Carvalho Aguiar, 470, 05403-000 - São Paulo - SP - Brazil, Tel. +55 11 3061-7005 - São Paulo - SP - Brazil
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