Session 59 - CROI 2007

Session 59 Poster Abstracts
Virus-Cell Interactions: Co-Receptor Usage
Monday, 1 - 4 pm
Poster Hall

250	Extension of gp120 Env Co-receptor Use to CXCR4 Is Associated with Disease Progression in LTNP Infected with nef-Defective HIV-1 A Crotti¹, S Ghezzi¹, E Santagostino², and Elisa Vicenzi*¹ ¹San Raffaele Sci Inst, Milan, Italy and ²A Bianchi Bonomi Hemophilia and Thrombosis Ctr, Milan, Italy
251	Dual-tropic HIV Display a Range of Ability to Use the CXCR4 or CCR5 Co-receptors Jonathan Toma*, J Whitcomb, S Fransen, N Parkin, C Petropoulos, and W Huang Monogram Biosci, South San Francisco, CA, US
252	Sequential Turnover of env Variants and Co-receptor Switching during HIV-1 Chronic Infection Julie Nelson^1,2, Julie Nelson^1,2, T Riddle², N Shire², M Sherman², K Franco², and H Sheppard³ ¹Univ of North Carolina at Chapel Hill, US; ²Univ of Cincinnati, OH, US; and ³California Dept of Hlth Svcs, Richmond, US
253	HIV Envelope Functional Evolution during Co-receptor Switching Donald Mosier*¹, R Nedellec¹, A Ramos¹, J Miamidian², J Reeves³, and C Pastore¹ ¹Scripps Res Inst, La Jolla, CA, US; ²Univ of Pennsylvania, Philadelphia, US; and ³Monogram Biosci, South San Francisco, CA, US
254	Prevalence of X4 Viruses in Patients Infected with HIV-1 Non-B Subtypes Carolina Garrido*¹, N Chueca², A Aguilera³, K Skrabal⁴, E Poveda¹, S Carlos², F García², J L Faudon⁴, C de Mendoza¹, and V Soriano¹ ¹Hosp Carlos III, Madrid, Spain; ²Hosp Univ San Cecilio, Granada, Spain; ³Hosp Xeral Santiago de Compostela, Spain; and ⁴Eurofins, Paris, France
255	HIV-1 Envelopes from the Early and Chronic Phases of Infection Have Different Host Receptor Interactions A Fellows¹, B Kwambana¹, J Overbaugh², and Manish Sagar*¹ ¹Brigham and Women's Hosp, Harvard Med Sch, Boston, MA, US and ²Fred Hutchinson Cancer Res Ctr, Seattle, WA, US
256	HCV Infection Is Associated with Decreased Co-receptor Switching and Increased Viral Diversity of HIV-1 in Co-infected Subjects K Franco¹, N Shire¹, T Riddle¹, H Sheppard², J Goedert³, K Sherman¹, Julie Nelson^1,4, and Julie Nelson^1,4 ¹Univ of Cincinnati, OH, US; ²California Dept of Hlth Svcs, Richmond, US; ³NCI, Rockville, MD, US; and ⁴Univ of North Carolina at Chapel Hill, US
257	Evolution of HIV-1 X4 Phenotypein vivo in Tissues and Longitudinal PBMC Samples Is Driven by Episodic Positive Selection Marco Salemi*¹, B Burkhardt¹, S Pomeroy¹, A Lowe¹, G Ghaffari¹, J Sleasman², and M Goodenow¹ ¹Univ of Florida, Gainesville, US and ²Univ of Florida and All Children's Hosp, St Petersburg, US
258	The CCR7 Ligands CCL19 and CCL21 Increase Permissiveness of Resting CD4⁺ T Cells to HIV Infection Suha Saleh*¹, A Solomon¹, F Wightman¹, M Xhilaga¹, P Cameron^1,2, P Cameron^1,2, S Lewin^1,2, and S Lewin^1,2 ¹Monash Univ, Melbourne, Australia and ²Alfred Hosp, Melbourne, Australia
259	HIV-1 Infection of Human Lymphoid Tissue and Rectal Mucosa ex vivo J C Grivel¹, J Elliott², A Biancotto¹, A Adler², I McGowan², Peter Anton*², and L Margolis¹ ¹Natl Inst of Child Hlth and Human Devt, NIH, Bethesda, MD, US and ²Univ of California, Los Angeles Ctr for HIV Prevention Res, US
260	Distinct DC-SIGN and DC-SIGNR Genetic Polymorphism among Han Chinese Hui Wang*¹, Y Xu², Y Hu³, C Wang², F Liu⁴, L Li¹, X Tong¹, X Xiao³, B Zhou¹, and T Zhu² ¹Shenzhen Municipal Hosp of Infectious Diseases, PR China; ²Univ of Washington Sch of Med, Seattle, US; ³Jinan Univ, Guangzhou, PR China; and ⁴Dongguan Blood Ctr, Dongguan, PR China