Navigation Links
Wild gorillas carriers of a SIV virus close to the AIDS virus

In 2005, 40.3 million people in the world, including 25.8 million in Sub-Saharan Africa, were living with HIV. The question of the origin of HIV-1, responsible for the AIDS pandemic, has been stimulating the scientific community for many years.

Some months ago, the team of Martine Peeters, director of research at IRD, and Eric Delaporte, director of the mixed research unit UMR 145 jointly involving the IRD and the University of Montpellier 1, showed the chimpanzee subspecies living in the Congo Basin (2) to be the reservoir of HIV-1 virus group M, the source of the world pandemic and that of another, very rare variant, HIV-1 group N. However, the reservoir of the third HIV-1 group, group O which infects humans (3), remained unidentified up to now.

This team announces, in an article in the journal Nature, the discovery of a simian immunodeficiency virus (SIV) infection in wild gorillas. Samples of faeces collected from different communities of gorillas found in the remotest areas of the Cameroon tropical forest were found to contain antibodies against this virus, called SIVgor. The genetic characteristics of the virus were present again in three gorillas living more than 400 km apart. Phylogenetic analysis of SIVgor showed it to be related to HIV-1 group O found in humans, essentially in Cameroon and in neighbouring countries.

This discovery of an HIV-1 related virus in wild gorillas does not, however, call into question the fact that chimpanzees are the primary reservoir of SIV/HIV viruses that crop up again in gorillas and in humans. As Martine Peeters of the IRD says, "the viruses of groups M and N are, very clearly, the consequence of inter-species transmission from chimpanzee to humans, whereas the origin of HIV-1 group O is less apparent. It cannot be excluded that chimpanzees infected by HIV-1 group O might have contaminated humans and the gorilla independently, or that the gorilla, having been contaminated by the chimpanzee, might hav e contaminated humans".

This work thus opens up a Pandora's box on the questions and speculations concerning the ability of these viruses to cross over from one species to another. The main challenges facing these teams for future work will be determination of the prevalence, the geographical distribution and biology of SIV infections in these great apes, not forgetting the question of how the gorillas were contaminated. This last point remains a mystery,considered as rare.
'"/>

Source:Institut de Recherche Pour le D茅veloppement


Related biology news :

1. Retrovirus struck ancestors of chimpanzees and gorillas millions of years ago, but did not affect ancestral humans
2. Poaching, logging, and outbreaks of Ebola threaten central African gorillas and chimpanzees
3. Bronx Zoo bears are new Samsonite gorillas
4. Ebola-outbreak kills 5000 gorillas
5. Ugandas mountain gorillas increase in number
6. Ebola outbreaks killing thousands of gorillas and chimpanzees
7. Association of herpesvirus with lung disorder questioned
8. Topical treatment shown to inhibit HIV and herpes simplex virus infection
9. Elusive HIV shape change revealed; Key clue to how virus infects cells
10. Newly discovered virus linked to childhood lung disorders and Kawasaki disease
11. Live Recombinant Adenovirus Vaccine Technique Explored

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:5/16/2017)... --  Bridge Patient Portal , an enterprise patient ... Systems , an electronic medical record solutions developer ... a partnership to build an interface between the ... products, including Centricity Practice Solution (CPS), Centricity Business ... integrations will allow healthcare delivery networks using GE ...
(Date:4/17/2017)... , April 17, 2017 NXT-ID, Inc. (NASDAQ: ... announces the filing of its 2016 Annual Report on Form 10-K ... Commission. ... 10-K is available in the Investor Relations section of the Company,s ... the SEC,s website at http://www.sec.gov . 2016 Year ...
(Date:4/11/2017)... N.Y. , April 11, 2017 ... fingerprints, but researchers at the New York University ... College of Engineering have found that partial similarities ... security systems used in mobile phones and other ... thought. The vulnerability lies in the ...
Breaking Biology News(10 mins):
(Date:6/20/2017)... ... June 20, 2017 , ... ... board of directors has formed a Higher Education Entrepreneurship Advisory Committee to implement ... institution presidents and other high-ranking representatives from 35 higher education institutions across the ...
(Date:6/20/2017)... June 20, 2017  Kibow Biotech Inc., a pioneer ... the issuance of a new patent covering a unique ... the U.S. Patent and Trademark Office on May 23 ... the Buzz of Bio award in 2014 in ... developing non-drug approaches to chronic disease. Renadyl™, the first ...
(Date:6/20/2017)... CA (PRWEB) , ... June 20, 2017 , ... ... technology for discovery of antibody therapeutics from millions-diverse immune repertoires, announces launch of ... in San Diego, California. Dave Johnson, PhD, CEO of GigaGen, will present on ...
(Date:6/19/2017)... (PRWEB) , ... June 19, 2017 , ... Tunnell ... for over 50 years. One of the biggest challenges faced by life sciences, biotech ... regulatory affairs services team is Kati Abraham , who is well known in ...
Breaking Biology Technology: