Sean Whelan is a British-American virologist. He is known for identifying the cellular protein used as a receptor by
Ebola virus
''Orthoebolavirus zairense'' or Zaire ebolavirus, more commonly known as Ebola virus (; EBOV), is one of six known species within the genus ''Ebolavirus''. Four of the six known ebolaviruses, including EBOV, cause a severe and often fatal vira ...
,
for defining the entry pathway that
rabies virus
Rabies virus (''Lyssavirus rabies'') is a neurotropic virus that causes rabies in animals, including humans. It can cause violence, hydrophobia, and fever. Rabies transmission can also occur through the saliva of animals and less commonly throu ...
uses to enter neurons,
and for identifying the
ribosome
Ribosomes () are molecular machine, macromolecular machines, found within all cell (biology), cells, that perform Translation (biology), biological protein synthesis (messenger RNA translation). Ribosomes link amino acids together in the order s ...
as a possible target for
antiviral drug
Antiviral drugs are a class of medication used for treating viral infections. Most antivirals target specific viruses, while a broad-spectrum antiviral is effective against a wide range of viruses. Antiviral drugs are a class of antimicrobials ...
s.
In July 2019, he was announced as the new Chair of the Department of Molecular Microbiology at
Washington University School of Medicine
Washington University School of Medicine (WashU Medicine) is the medical school of Washington University in St. Louis, located in the Central West End neighborhood of St. Louis, Missouri. Founded in 1891, the School of Medicine shares a ca ...
in
St Louis, Missouri
St. Louis ( , sometimes referred to as St. Louis City, Saint Louis or STL) is an Independent city (United States), independent city in the U.S. state of Missouri. It lies near the confluence of the Mississippi River, Mississippi and the Miss ...
. In February 2020, Whelan was recognized as the LGBTQ+ Scientist of the Year 2020 by the
.
Education
Whelan received a First Class Honors degree in Microbiology and Biochemistry from the
University of Birmingham
The University of Birmingham (informally Birmingham University) is a Public university, public research university in Birmingham, England. It received its royal charter in 1900 as a successor to Queen's College, Birmingham (founded in 1825 as ...
. He performed his PhD work with noted virologist Jeffrey Almond, then at the
University of Reading
The University of Reading is a public research university in Reading, Berkshire, England. It was founded in 1892 as the University Extension College, Reading, an extension college of Christchurch College, Oxford, and became University College, ...
.
Career
Whelan joined
Harvard Medical School
Harvard Medical School (HMS) is the medical school of Harvard University and is located in the Longwood Medical and Academic Area, Longwood Medical Area in Boston, Massachusetts. Founded in 1782, HMS is the third oldest medical school in the Un ...
's Department of Microbiology and Molecular Genetics in 2002. He was promoted to Professor of Microbiology and Immunobiology in 2012. He served as head of Harvard's PhD Program in Virology, and directed an NIH-funded Center for Excellence in Translational Research. In July 2019,
Washington University in St. Louis
Washington University in St. Louis (WashU) is a private research university in St. Louis, Missouri, United States. Founded in 1853 by a group of civic leaders and named for George Washington, the university spans 355 acres across its Danforth ...
announced that Whelan had been named Chair of the Department of Molecular Microbiology and the Marvin A. Brennecke Distinguished Professor of Microbiology at
Washington University School of Medicine
Washington University School of Medicine (WashU Medicine) is the medical school of Washington University in St. Louis, located in the Central West End neighborhood of St. Louis, Missouri. Founded in 1891, the School of Medicine shares a ca ...
.
Whelan's research focuses on using
Vesicular Stomatitis Virus
''Indiana vesiculovirus'', formerly ''Vesicular stomatitis Indiana virus'' (VSIV or VSV) is a virus in the family ''Rhabdoviridae''; the well-known '' Rabies lyssavirus'' belongs to the same family. VSIV can infect insects, cattle, horses and pig ...
(VSV) as a model system for
negative-sense single-stranded RNA virus
In molecular biology and genetics, the sense of a nucleic acid molecule, particularly of a strand of DNA or RNA, refers to the nature of the roles of the strand and its complement in specifying a sequence of amino acids. Depending on the context, ...
es such as the
rabies
Rabies is a viral disease that causes encephalitis in humans and other mammals. It was historically referred to as hydrophobia ("fear of water") because its victims panic when offered liquids to drink. Early symptoms can include fever and abn ...
,
measles
Measles (probably from Middle Dutch or Middle High German ''masel(e)'', meaning "blemish, blood blister") is a highly contagious, Vaccine-preventable diseases, vaccine-preventable infectious disease caused by Measles morbillivirus, measles v ...
and
Ebola
Ebola, also known as Ebola virus disease (EVD) and Ebola hemorrhagic fever (EHF), is a viral hemorrhagic fever in humans and other primates, caused by ebolaviruses. Symptoms typically start anywhere between two days and three weeks after in ...
viruses. He began this work as a post-doc in the laboratory of Professor Gail Wertz, developing a system for expressing infectious VSV particles from
cDNA
In genetics, complementary DNA (cDNA) is DNA that was reverse transcribed (via reverse transcriptase) from an RNA (e.g., messenger RNA or microRNA). cDNA exists in both single-stranded and double-stranded forms and in both natural and engin ...
clones, which led to a patent on VSV-based
gene therapy
Gene therapy is Health technology, medical technology that aims to produce a therapeutic effect through the manipulation of gene expression or through altering the biological properties of living cells.
The first attempt at modifying human DNA ...
vectors and
vaccine
A vaccine is a biological Dosage form, preparation that provides active acquired immunity to a particular infectious disease, infectious or cancer, malignant disease. The safety and effectiveness of vaccines has been widely studied and verifi ...
s. VSV
pseudotypes, which carry the
envelope
An envelope is a common packaging item, usually made of thin, flat material. It is designed to contain a flat object, such as a letter (message), letter or Greeting card, card.
Traditional envelopes are made from sheets of paper cut to one o ...
proteins of other viruses, are useful tools for studying the behavior of pathogenic viruses. Whelan has used this approach to study the entry process of Ebola, to identify the cellular protein the virus uses as a receptor,
and to study how the rabies virus infects
neuron
A neuron (American English), neurone (British English), or nerve cell, is an membrane potential#Cell excitability, excitable cell (biology), cell that fires electric signals called action potentials across a neural network (biology), neural net ...
s.
Whelan also studies the
viral life cycle
Viruses are only able to Replicate (biology), replicate themselves by commandeering the reproductive apparatus of cells and making them reproduce the virus's genetic structure and virion, particles instead. How viruses do this depends mainly on t ...
of VSV to identify potential
antiviral
Antiviral drugs are a class of medication used for treating viral infections. Most antivirals target specific viruses, while a broad-spectrum antiviral is effective against a wide range of viruses. Antiviral drugs are a class of antimicrobials ...
targets.
He identified a specific subunit of the
ribosome
Ribosomes () are molecular machine, macromolecular machines, found within all cell (biology), cells, that perform Translation (biology), biological protein synthesis (messenger RNA translation). Ribosomes link amino acids together in the order s ...
, RPL40, as being essential to initiate
translation
Translation is the communication of the semantics, meaning of a #Source and target languages, source-language text by means of an Dynamic and formal equivalence, equivalent #Source and target languages, target-language text. The English la ...
of VSV
mRNAs
In molecular biology, messenger ribonucleic acid (mRNA) is a single-stranded molecule of RNA that corresponds to the genetic sequence of a gene, and is read by a ribosome in the process of synthesizing a protein.
mRNA is created during the p ...
.
This selective mechanism allows the virus to block translation of host mRNAs without preventing the production of its own proteins. Interfering with this mechanism could lead to antiviral therapies.
With
Stephen C. Harrison, he used
cryo-EM
Cryogenic electron microscopy (cryo-EM) is a transmission electron microscopy technique applied to samples cooled to cryogenic temperatures. For biological specimens, the structure is preserved by embedding in an environment of vitreous ice. An ...
to determine the structure of the L protein of VSV, revealing several potential drug targets.
Advocacy
As a founding member of the group "Scientists for Science", Whelan has argued that research into infectious pathogens is "essential for a comprehensive understanding of microbial disease pathogenesis, prevention and treatment", and that further regulation of work on dangerous pathogens should only be considered in the context of "input from outside experts with the background and skills to conduct actual risk assessments based on specific experiments and existing laboratories".
Awards
* 2005
Burroughs Wellcome Fund
The Burroughs Wellcome Fund (BWF) is an American non-profit medical research organization that provides funding for biomedical research, STEM education, and areas of career development for scientists. Since 1970, it has been headquartered in Nor ...
Investigator in Pathogenesis of Infectious Disease
* 2010
Genzyme
Genzyme (also known as Genzyme Transgenics Corp or GTC Biotherapeutics) was an American biotechnology company based in Cambridge, Massachusetts. From its acquisition in 2011 to 2022 Genzyme operated as a fully owned subsidiary of Sanofi. In 2010, ...
Young Innovator Award
* 2011
Hoffmann-La Roche
F. Hoffmann-La Roche AG, commonly known as Roche (), is a Swiss multinational holding healthcare company that operates worldwide under two divisions: Pharmaceuticals and Diagnostics. Its holding company, Roche Holding AG, has shares listed on ...
Investigator in Molecular Virology
* 2013
American Academy of Microbiology
American(s) may refer to:
* American, something of, from, or related to the United States of America, commonly known as the "United States" or "America"
** Americans, citizens and nationals of the United States of America
** American ancestry, p ...
Fellow
* 2015
NIH MERIT award
The NIH MERIT award (Method To Extend Research in Time) Award (R37) was created by the National Institutes of Health
The National Institutes of Health (NIH) is the primary agency of the United States government responsible for biomedical an ...
* 2020
NOGLSTP LGBTQ+ Scientist of the Year.
References
External links
*http://www.whelan-lab.org
{{DEFAULTSORT:Whelan, Sean
Living people
1967 births
Alumni of the University of Birmingham
Alumni of the University of Reading
Harvard Medical School faculty
American virologists
British virologists
British LGBTQ scientists
American LGBTQ academics
American LGBTQ scientists
Washington University School of Medicine faculty
British LGBTQ academics