Wednesday, May 07, 2014 2:05:54 PM
Scientists from the Icahn School of Medicine at Mount Sinai in New York City and the MRC National Institute for Medical Research in London published a paper using Single Molecule, Real-Time (SMRT®) Sequencing to gain a better understanding of how human endogenous retroviruses may be interacting with HIV infection. They pursued a new avenue of research that could shed light on how to interfere with HIV replication.
“HIV-1 interacts with HERV-K (HML-2) Envelopes derived from human primary lymphocytes” was recently published in the Journal of Virology, a publication of the American Society for Microbiology. Daria Brinzevich and George R. Young were lead authors on the work.
The scientists conducted a study uniquely suited to the extremely long reads provided by the PacBio® platform, noting that this technology was needed to accurately parse the complexity in expression among a specific group of human endogenous retroviruses (HERVs). “Applied to the sequencing of PCR products, PacBio reads maintain the entire product as an uninterrupted sequence, allowing reliable identification against reference libraries with the equivalent levels of similarity as those of HERV-Ks,” the authors write.
In this project, the scientists dug deeper into evidence that expression of the endogenous retroviruses that make up almost 5% of the human genome is upregulated when a person is infected with HIV-1. “HIV-1 infection in human cells is equivalent to a co-infection by several retroviruses,” they explain. They used SMRT Sequencing to analyze the expression profiles of the HERV-K group of retroviruses in lymphocytes from five healthy people.
The team found nearly 4,000 HERV-K sequences in these lymphocytes, compared to a previous study from other scientists that found fewer than 1,000 of these sequences in 11 samples. They posit that the higher number seen here reflects the greater sensitivity of PacBio sequencing as well as the difference in cell types analyzed.
In all, the authors identified more than 30 different transcripts for HERV-K envelopes, including two that produce full-length proteins — one of which was found to incorporate into HIV-1 particles. “These findings imply that some HERV-Ks interact specifically with HIV possibly shaping the properties of the lentivirus,” they write. “Future studies are needed to determine the extent of their influence on the HIV-1 life cycle and whether their expression can be harnessed to hinder HIV-1 replication.”
http://blog.pacificbiosciences.com/2014/05/retroviral-study-reveals-potential-for.html?utm_content=bufferfbe3f&utm_medium=social&utm_source=twitter.com&utm_campaign=buffer
Recent PACB News
- Ambry Genetics and PacBio Announce Collaboration to Sequence Up to 7,000 Human Genomes Aimed at Providing Answers for Families Battling Rare Diseases • PR Newswire (US) • 05/15/2024 01:45:00 PM
- Form S-3ASR - Automatic shelf registration statement of securities of well-known seasoned issuers • Edgar (US Regulatory) • 05/09/2024 08:33:12 PM
- Form 10-Q - Quarterly report [Sections 13 or 15(d)] • Edgar (US Regulatory) • 05/09/2024 08:21:46 PM
- Form 8-K - Current report • Edgar (US Regulatory) • 05/09/2024 08:12:15 PM
- PacBio Announces First Quarter 2024 Financial Results • PR Newswire (US) • 05/09/2024 08:05:00 PM
- PacBio Announces Preliminary First Quarter 2024 Revenue and Updates 2024 Revenue Guidance • PR Newswire (US) • 04/16/2024 12:05:00 PM
- Estonia National Biobank Selects PacBio to Sequence 10,000 Whole Genomes • PR Newswire (US) • 03/27/2024 12:00:00 PM
- PacBio Grants Equity Incentive Award to New Employee • PR Newswire (US) • 03/22/2024 08:30:00 PM
- PacBio Announces PureTarget™ Repeat Expansion Panel, Expanding its Portfolio of End-to-End Clinical Research Solutions • PR Newswire (US) • 03/12/2024 01:05:00 PM
- Form 4 - Statement of changes in beneficial ownership of securities • Edgar (US Regulatory) • 03/06/2024 10:36:07 PM
- Form 4 - Statement of changes in beneficial ownership of securities • Edgar (US Regulatory) • 03/06/2024 10:30:18 PM
- Form 4 - Statement of changes in beneficial ownership of securities • Edgar (US Regulatory) • 03/06/2024 10:26:40 PM
- Form 4 - Statement of changes in beneficial ownership of securities • Edgar (US Regulatory) • 03/06/2024 10:22:45 PM
- Form 144 - Report of proposed sale of securities • Edgar (US Regulatory) • 03/04/2024 11:32:39 PM
- Form 144 - Report of proposed sale of securities • Edgar (US Regulatory) • 03/04/2024 11:22:32 PM
- Form 4 - Statement of changes in beneficial ownership of securities • Edgar (US Regulatory) • 02/26/2024 09:55:28 PM
- Form 4 - Statement of changes in beneficial ownership of securities • Edgar (US Regulatory) • 02/26/2024 09:36:09 PM
- Form 4 - Statement of changes in beneficial ownership of securities • Edgar (US Regulatory) • 02/26/2024 09:25:48 PM
- Form 4 - Statement of changes in beneficial ownership of securities • Edgar (US Regulatory) • 02/26/2024 09:19:42 PM
- PacBio to Present at Upcoming Investor Conferences • PR Newswire (US) • 02/26/2024 09:05:00 PM
- Form 4 - Statement of changes in beneficial ownership of securities • Edgar (US Regulatory) • 02/21/2024 11:25:13 PM
- Form 4 - Statement of changes in beneficial ownership of securities • Edgar (US Regulatory) • 02/21/2024 11:20:57 PM
- Form 4 - Statement of changes in beneficial ownership of securities • Edgar (US Regulatory) • 02/21/2024 11:17:14 PM
- Form 4 - Statement of changes in beneficial ownership of securities • Edgar (US Regulatory) • 02/21/2024 11:07:18 PM
- Form 144 - Report of proposed sale of securities • Edgar (US Regulatory) • 02/20/2024 09:17:12 PM
North Bay Resources Announces 50/50 JV at Fran Gold Project, British Columbia; Initiates NI 43-101 Resources Estimate and Bulk Sample • NBRI • May 21, 2024 9:07 AM
Greenlite Ventures Inks Deal to Acquire No Limit Technology • GRNL • May 17, 2024 3:00 PM
Music Licensing, Inc. (OTC: SONG) Subsidiary Pro Music Rights Secures Final Judgment of $114,081.30 USD, Demonstrating Strength of Licensing Agreements • SONGD • May 17, 2024 11:00 AM
VPR Brands (VPRB) Reports First Quarter 2024 Financial Results • VPRB • May 17, 2024 8:04 AM
ILUS Provides a First Quarter Filing Update • ILUS • May 16, 2024 11:26 AM
Cannabix Technologies and Omega Laboratories Inc. enter Strategic Partnership to Commercialize Marijuana Breathalyzer Technology • BLO • May 16, 2024 8:13 AM