Volume 7, Issue 6, June 2010
Congratulations to the following faculty on their upcoming promotion and/or tenure actions which become effective July:
Congratulations to the following Micro Majors who made the Dean's List:
Congratulations to Justin Lee of the VandeWoude Lab for receving 1st place in the Young Investigator Award at the International Feline Retrovirus Research Symposium that was held May 23-26 in Charleston, SC. Justin received the award, which includes $500, for his presentation entitled, "Use of host and pathogen molecular markers to determine population substructure among bobcats (Lynx rufus) in a fragmented landscape in southern California "
Congratulations to the following students who have completed their Veterinary Residency and are continuing on for completion of their PhD degree:
Congratulations to the following students who have completed their Veterinary Residency and PhD degree:
Congratulations to the following students who have completed their Veterinary Residency and their MS degree:
Michael Wiseman is headed to ANTECH West, Tina is going to work at Taconic in Albany NY, and Gopi is headed to Mt. Sinai for a postdoc.
A reception to recognize these achievments will be held on Monday, June 21, 3-5pm in the Glover Gallery of the Pathology Building
Congratulations to recent Microbiology graduate Justine Masselli, B.S. for being awarded a 9-week research internship (Sept-Nov 2010) at the Infectious Disease Pediatric Unit of Tygerberg Hospital in Cape Town, South Africa. Justine will be assisting researchers in assessing the neurological and motor development of HIV-positive infants/children. Justine will be set-up in a furnished apartment near the beach with her own rental car (which will come in handy assuming that she remembers to drive on the left side of the road). She is very excited for the opportunity and the international research experience. Good Luck Justine!
Congratulations to Gerald Callahan for being nominated for the "Honors Professor of the Year Award" for the fourth time!
Dr. Gerald Callahan's most current book, Between XX and XY: Intersexuality and the Myth of Two Sexes is a finalist for the Colorado Book Award in general nonfiction. Winners will be announced June 22nd in Aspen.
In the News...
Davis Seelig, Gary Mason, Glen Telling and Ed Hoover’s work on generating a new mouse animal model for chronic wasting disease was highlighted in the May 26th edition of Science Daily.
Prion Strain Mutation Determined by Prion Protein Conformational Compatibility and Primary Structure
R. Angers, H.-E. Kang, D. Napier, S. Browning, T. Seward, Candace Mathiason, A. Balachandran, D. McKenzie, J. Castilla, C. Soto, J. Jewell, C. Graham, Ed Hoover and Glenn Telling
Science 328: 1154 (May 28 2010)
Ask a person to define the meaning of the word ‘strain’ and they’ll likely respond with things like “anxiety”, “to struggle” or perhaps “a nagging pain somewhere”. Ask any of MIP’s hard working researchers who are trying to define what exactly is a ‘strain’ of the prion that causes Chronic Wasting Disease (CWD) in No CO elk and deer, and they’ll likely respond with the same answers – until now that is. In a tour de force paper that appeared in the hot shot journal Science this month, Ed and Candace – as part of a group led by Glenn Telling – have finally defined two CWD strains - at least from a clinical perspective.
The group obtained prion samples from a boatload of Rocky Mtn. elk and deer (aka cervids) with CWD and observed a number of parameters in the disease they cause in Glenn Telling’s transgenic mouse strain that expresses the cervid PrP gene rather than the normal mouse version. PrP, by the way, is the normal cellular protein that generates prions when it folds incorrectly. For each of these infections, the authors characterized the time to disease and the distribution/severity of the associated neuropathology. What they found was clear evidence for two strains of CWD prions. The first (CWD-1) produced disease with a relatively short incubation time and gave bilateral symmetrical lesions in the hippocampus (which by they way, is part of your brain, not a new CSU satellite facility at the Denver Zoo). The other prion strain (CWD-2) took a long time to cause disease that manifested itself with asymmetric brain lesions. The strain differences were very clear in samples from the diseased elk brains but in CWD deer brain, however, the strains were usually co-mingled. So far, the story is pretty straight forward – right? Now comes the two funky parts. First, upon serial passage in the Telling PrPcervid mouse, the strains readily changed and became undistinguishable. This suggests a very low energy barrier separating one CWD prion strain from changing into another. In particular, if the PrP protein in the infected animal has a ‘Q’ at position 226 (Q by the way stands for glutamine, not Quackenbush) the strains appear to be very readily interchangeable. Thus the CWD prion appears to be very adaptable. Second, the authors could not biochemically distinguish the CWD-1 and CWD-2 prions. The two prion strains had identical electrophoretic patterns, monoclonal antibody reactivity, glycoforms and unfolding kinetics in the presence of guanidinium. Wazzup with that?
What’s this all mean and what three things made us choose (yet another) paper from the Hoover-ites to highlight? Well first and foremost this work makes the groundbreaking discovery that two main strains are likely responsible for all of the CWD in our backyard. Second (and perhaps scary-most), the CWD strains are more adaptable to new environments then would have been previously predicted. How they do this adaptation in the apparent absence of nucleic acid, of course, is a complete black box. Thus while studies using transgenic mice that contain human proteins have implied that CWD prions do not cause significant disease in humans, the full zoonotic potential of CWD prions needs to be established. Finally, we chose this paper because we wanted to see how many of you would notice the individual in the author line who shares a last name with an MIPnews editor…….
If you want to learn more about this paper, be sure to check out the Science News & Views article by John Collinge that accompanied the article (Science 328: 1111-1112)
MIP Publications Late May 2010 - Early June 2010
Zhang J, Chatterjee D, Brennan PJ, Spencer JS, Liav A. A modified synthesis and serological evaluation of neoglycoproteins containing the natural disaccharide of PGL-I from Mycobacterium leprae.
Wise de Valdez MR, Suchman EL, Carlson JO, Black WC. A large scale laboratory cage trial of Aedes densonucleosis virus (AeDNV). J Med Entomol. 2010 May;47(3):392-9.
Brackney DE, Isoe J, W C B 4th, Zamora J, Foy BD, Miesfeld RL, Olson KE. Expression profiling and comparative analyses of seven midgut serine proteases from the yellow fever mosquito, Aedes aegypti. J Insect Physiol. 2010 Jul;56(7):736-44.
Angers RC, Kang HE, Napier D, Browning S, Seward T, Mathiason C, Balachandran A, McKenzie D, Castilla J, Soto C, Jewell J, Graham C, Hoover EA, Telling GC. Prion strain mutation determined by prion protein conformational compatibility and primary structure. Science. 2010 May 28;328(5982):1154-8.
Seelig DM, Mason GL, Telling GC, Hoover EA. Pathogenesis of chronic wasting disease in cervidized transgenic mice. Am J Pathol. 2010 Jun;176(6):2785-97.
Denkers ND, Seelig DM, Telling GC, Hoover EA. Aerosol and nasal transmission of chronic wasting disease in cervidized mice. J Gen Virol. 2010 Jun;91(Pt 6):1651-8.
Calvo E, Sanchez-Vargas I, Kotsyfakis M, Favreau AJ, Barbian KD, Pham VM, Olson KE, Ribeiro JM. The salivary gland transcriptome of the eastern tree hole mosquito, Ochlerotatus triseriatus. J Med Entomol. 2010 May;47(3):376-86.
Geiss BJ, Stahla H, Hannah AM, Gari HH, Keenan SM. Focus on flaviviruses: current and future drug targets. Future Med Chem. 2009 May 1;1(2):327
Spraker TR, O'Rourke KI, Gidlewski T, Powers JG, Greenlee JJ, Wild MA. Detection of the abnormal isoform of the prion protein associated with chronic wasting disease in the optic pathways of the brain and retina of Rocky Mountain elk (Cervus elaphus nelsoni). Vet Pathol. 2010 May;47(3):536-46.
Lee JE, Wilusz J. Translational symphony in (hnRNP) C major for APP. Nat Struct Mol Biol. 2010 Jun;17(6):675-6
On June 30th, Dr. Charlie Calisher will be retiring after 17 years of service at CSU. Charlie received his BS from the Philadelphia College of Pharmacy & Science, an MS in Gnotobiotics from a school with a slightly better football team (Notre Dame) and a PhD in Microbiology from Georgetown. Before joining the MIP faculty, he spent the first ~27 years of his career at the CDC where he earned his reputation as a world-class arbovirologist. Throughout his impressive career, Charlie published nearly 400 peer-reviewed articles, book chapters, and other scholarly works. His enormous impact on the field is illustrated by the 5,034 citations his work has received to date. Although its hard to pick a key paper or two from such a large body of work, a pair that come to mind are his studies on the rapid detection of Dengue virus from clinical samples using RT-PCR (J. Clin Micro., 1992; [405 citations to date]) and the antigenic relatedness between flaviviruses as determined by cross-neutalization tests (J. Gen Virol., 1989; [312 citations to date]).
Charlie has been a member of 17 different scientific societies, served on 11 editorial boards and participated in well over 30 scientific panels (including consultation service to various senators). He has received numerous awards throughout his career, including the Richard Moreland Taylor Award, the Joel Dalrymple Award and a Life membership in the International Committee for Taxonomy of Viruses. Interestingly, Charlie has also had a flea named after him – Catallagia calisheri. Now there’s a first I bet for an MIP faculty member!
When he wasn’t out playing arbovirologist, Charlie found the time to get involved in a variety of community affairs. These included writing a science column for the Coloradoan, serving as a baseball umpire, and proofreading the Baseball rule book for the National Federation of State High School Sports Association. His monthly articles for the Croatian Journal of Medicine (e.g. Public Health or Pubic Health – is there a difference?) were always a hoot to read.
To round out this article, we asked Charlie to provide some personal insights on his time as an arbovirologist:
Dr. Calisher's Top Ten List of his most interesting experiences as a scientist:
Dr. Calisher's ‘Turn ons & Turn Offs’
Turn ons: The marvelous people at CSU, meeting and collaborating with scientists such as those at CSU (particularly, but not exclusively, Barry Beaty, Ralph Smith and Bill Black) and CDC, Thomas Weller, Wallace Rowe, Janet Hartley, Bob Huebner, Tom Monath, Telford Work, Bob Shope, CJ Peters, Marc Van Regenmortel, Max Theiler, Wilbur Downs, Carleton Gajdusek, Peter Doherty, Marshall Nirenberg, and many, many others, the Rocky Mountain Virology Club meetings, and virus ecology and epidemiology
Turn offs: The few (but significant) jackasses here and there, the NIH grant system, forms to fill out, rules to follow, people who can't tell the difference between a virus species and a virus, lab meetings (everywhere), working in high containment facilities, and planting 100 aspen trees in rocky ground, only to find the next morning that deer ate them all.
Congratulations Charlie on your CSU retirement and kudos on a terrific scientific career (which we’re all betting isn’t over just yet…..)
Congratulations to the following MIP researchers who were awarded grants by the CVMBS College Research Council for 2010/2011:
We are pleased to announce the winners of this year's MIP faculty committee elections:
Check out the 2010 Spring/Summer edition of the Veterinary Diagnostic Laboratory's Lab Lines
Local Fall Meetings Scheduled:
Mark your calendars
Rocky Mtn Virology Club
The Graduate Student Council (GSC), with support from the CSU Graduate School, is hosting it's first annual summer Picnic for all CSU Graduate Students!
When: Weds, June 30, 5:30-8:00pm
This intra-departmental gathering, along with future events put on by the GSC, will help to strengthen and enrich our grad student community.
Contact Katherine Zaunbrecher, Graduate Student President, if you have any questions or would like to get involved.
Payroll Shenanigans for Hourly Employees
Timesheets submitted for the May 22-June 4 pay period will not be paid on June 18th. Due to CSU fiscal year end policy, you’ll have to wait until Thursday July 1, 2010 for your check. Please plan accordingly.
AIDL Admin Assistant/Accounting Tech/Clean-up Officer, Sharon Chapman, has accepted a position with CSU Accounts Payable Department. Her last day with MIP will be Friday, June 18. Sharon's friendly smile, cheerful attitude, and willingness to help anyone with anything, will be missed. We wish her the best in her new endeavor.
Congratulations to Aaron McGrew and Ashley Linton on their recent marriage, which took place on June 6, 2010. We wish them a long and happy life together!
"As an adolescent I aspired to lasting fame, I craved factual certainty, and I thirsted for a meaningful vision of human life - so I became a scientist. This is like becoming an archbishop so you can meet girls."
A Galapagos land iguana (Conolophus subcristatus). Picture taken by Charles Calisher on his recent trip to Ecuador to help setup lab and field studies of arboviruses and hantaviruses.
New Grant Awards
Anne Avery, "Arginine and Risk Factors for Thrombosis in Dogs with IMHA", Morris Animal Foundation
Nicholas Haley, "CWD: A Model of Prion Transmission via Saliva and Urine", NIH-Nat. Ctr. for Research Resources
Diane Ordway-Rodriguez, "Induction of Regulatory T Cells by Highly Virulent Isolates of M. tuberculosis", NIH-NIAID
Vara Vissa, "ARRA: Supplement of Molecular Epidemiology of Leprosy", NIH-NIAID
Do you have NEWS or PICTURES you would like to share?
Send In your ideas or newsworthy items. Contributions make the Newsletter better!
|MIP Newsletter Volume 7, Issue 6, June 2010|
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