Biomedical subjects

John Mokili

Publications and source records attributed to John Mokili.

4 recordsLinked to original sources

PubMed2006

Curation of complex, context-dependent immunological data.

BACKGROUND: The Immune Epitope Database and Analysis Resource (IEDB) is dedicated to capturing, housing and analyzing complex immune epitope related data http://www.immuneepitope.org. DESCRIPTION: To identify and extract relevant data from the scientific literature in an efficient and accurate manner, novel processes were developed for manual and semi-automated annotation. CONCLUSION: Formalized curation strategies enable the processing of a large volume of context-dependent data, which are now available to the scientific community in an accessible and transparent format. The experiences described herein are applicable to other databases housing complex biological data and requiring a high level of curation expertise.

Allergy and Immunology↗

PubMed2005

An ontology for immune epitopes: application to the design of a broad scope database of immune reactivities.

BACKGROUND: Epitopes can be defined as the molecular structures bound by specific receptors, which are recognized during immune responses. The Immune Epitope Database and Analysis Resource (IEDB) project will catalog and organize information regarding antibody and T cell epitopes from infectious pathogens, experimental antigens and self-antigens, with a priority on NIAID Category A-C pathogens (http://www2.niaid.nih.gov/Biodefense/bandc_priority.htm) and emerging/re-emerging infectious diseases. Both intrinsic structural and phylogenetic features, as well as information relating to the interactions of the epitopes with the host's immune system will be catalogued. DESCRIPTION: To effectively represent and communicate the information related to immune epitopes, a formal ontology was developed. The semantics of the epitope domain and related concepts were captured as a hierarchy of classes, which represent the general and specialized relationships between the various concepts. A complete listing of classes and their properties can be found at http://www.immuneepitope.org/ontology/index.html. CONCLUSION: The IEDB's ontology is the first ontology specifically designed to capture both intrinsic chemical and biochemical information relating to immune epitopes with information relating to the interaction of these structures with molecules derived from the host immune system. We anticipate that the development of this type of ontology and associated databases will facilitate rigorous description of data related to immune epitopes, and might ultimately lead to completely new methods for describing and modeling immune responses.

Journal Article↗

PubMed2005

The spread of HIV in Africa.

A significant effort has been put into identifying the origin of HIV, tracking its spread, and mapping its distribution. This effort is of particular importance in Africa, where the AIDS epidemic is genetically most diverse, where prevalence reaches its highest levels, and where HIV had its origins in cross-species transmission from non-human primates to man. In this article, we summarize the molecular epidemiology of HIV in Africa, from both a historical and modern perspective. There are marked differences in the local diversity and in the rate of epidemic expansion in different regions of Africa. Understanding the distribution of genetic forms of HIV can be used to tailor vaccine strategies to specific regions and nations. Finally, we review the relationship of HIV lineages to related simian retroviruses and the evolutionary history and the origins of the HIV epidemic.

Africa↗

PubMedDate not supplied

Community preparedness for HIV vaccine trials in the Democratic Republic of Congo.

This paper reports on an assessment of community preparedness for HIV vaccine trials in the Democratic Republic of Congo. Formative research was conducted in the capital city of Kinshasa during the period October 2003 to March 2004 to answer questions pertinent to planning trials of a preventive HIV vaccine and to identify related issues. Twenty-seven in-depth interviews and two focus groups were held with potential trial participants and community leaders. Data was collected on the subjects of vaccines, HIV/AIDS and sexual behaviour, and an HIV vaccine. The study also sought to identify factors that motivate a person to volunteer for a vaccine trial or which are disincentives to participation, along with preparedness of the larger community for trials. Personal concerns for health and for the impact of the epidemic on families and country were common motivations for participation. The danger of an experimental vaccine and the stigma of a positive HIV antibody test as the result of vaccination are major concerns and disincentives. The health, educational, and local non-governmental sectors are identified as having important roles to play in assuring preparedness for trials, although significant challenges exist to achieving community preparedness.

AIDS Vaccines↗