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Isolation and characterization of simian immunodeficiency virus from African white-crowned mangabey monkeys ( Cercocebus torquatus lunulatus )

Identifieur interne : 001443 ( Main/Exploration ); précédent : 001442; suivant : 001444

Isolation and characterization of simian immunodeficiency virus from African white-crowned mangabey monkeys ( Cercocebus torquatus lunulatus )

Auteurs : K. Tomonaga [Japon] ; J. Katahira [Japon] ; M. Fukasawa [Japon] ; M. A. Hassan [Japon, Kenya] ; M. Kawamura [Japon] ; H. Akari [Japon] ; T. Miura [Japon] ; T. Goto [Japon] ; M. Nakai [Japon] ; M. Suleman [Kenya] ; M. Isahakia [Kenya] ; M. Hayami [Japon]

Source :

RBID : ISTEX:3E391965E603FF46F0D0283A94ABB2044EB8A7AA

Descripteurs français

English descriptors

Abstract

Summary: Forty-eight of 236 sera from seven species of African non-human primates in Kenya, including those of white-crowned mangabey monkeys (Cercocebus torquatus lunulatus) had antibodies to simian immunodeficiency viruses (SIVs). Isolates of simian lentivirus were obtained from seropositive white-crowned mangabey monkeys which are indigenous in West Africa. This virus, designated as SIVWCM, appeared morphologically similar to HIV by electron microscopy, showed Mg2+-dependent reverse transcriptase activity, and induced cytopathic effects in human CD 4-positive cells. Western blotting analysis revealed thatenv products of SIVWCM cross-reacted with those of SIVAGM more strongly than with those of HIV-1 and SIVMAC, and clear hybridization bands were detected with an SIVAGM probe. For comparison of the virus sequence with those of other primate lentiviruses, part of thepol gene and the long terminal repeats (LTRs) were amplified and cloned. Sequencing showed that SIVWCM isolates were closely related to SIVAGM isolates. This study suggested that SIVAGM from theCercopithecus genus and SIVWCM from theCercocebus genus may be members of an SIV group that is genetically distinct from the SIV from a sooty mangabey monkey (SIVSMM) of the genusCercocebus, to which the white-crowned mangabey monkey also belongs.

Url:
DOI: 10.1007/BF01316886


Affiliations:


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Le document en format XML

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<term>Macaque monkeys</term>
<term>Mangabey</term>
<term>Mangabey monkey</term>
<term>Mangabey monkeys</term>
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<div type="abstract" xml:lang="en">Summary: Forty-eight of 236 sera from seven species of African non-human primates in Kenya, including those of white-crowned mangabey monkeys (Cercocebus torquatus lunulatus) had antibodies to simian immunodeficiency viruses (SIVs). Isolates of simian lentivirus were obtained from seropositive white-crowned mangabey monkeys which are indigenous in West Africa. This virus, designated as SIVWCM, appeared morphologically similar to HIV by electron microscopy, showed Mg2+-dependent reverse transcriptase activity, and induced cytopathic effects in human CD 4-positive cells. Western blotting analysis revealed thatenv products of SIVWCM cross-reacted with those of SIVAGM more strongly than with those of HIV-1 and SIVMAC, and clear hybridization bands were detected with an SIVAGM probe. For comparison of the virus sequence with those of other primate lentiviruses, part of thepol gene and the long terminal repeats (LTRs) were amplified and cloned. Sequencing showed that SIVWCM isolates were closely related to SIVAGM isolates. This study suggested that SIVAGM from theCercopithecus genus and SIVWCM from theCercocebus genus may be members of an SIV group that is genetically distinct from the SIV from a sooty mangabey monkey (SIVSMM) of the genusCercocebus, to which the white-crowned mangabey monkey also belongs.</div>
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