LAUSANNE-UNIVERSITY-HOSP
31.5.2016 13:01:09 CEST | Business Wire | Press release
A study, published yesterday in Nature Medicine , has shown that T follicular helper (Tfh) cells serve as the dominant cell reservoir for HIV infection. The study was led by Professors Matthieu Perreau and Giuseppe Pantaleo from the Service of Immunology and Allergy, Lausanne University Hospital, Lausanne, Switzerland.
The researchers have investigated the HIV reservoir in aviremic individuals treated for several years (up to 14 years) with antiretroviral (ART) therapy. The study demonstrates that a population of CD4 T cells residing within the germinal centers of lymph nodes, known as Tfh cells, serves as the dominant cell reservoir for HIV infection. The Tfh cells which represent less than 1% of total CD4 T cells in long-term ART treated individuals, contained replication competent and infectious virus. Germinal centers are difficult to access to cytotoxic CD8 T cells and thus represent a privileged anatomic site, e.g. a sanctuary, for the persistence of HIV in Tfh cells in long-term ART treated individuals.
Despite the major advances in ART therapy and the effective suppression of HIV replication, ART is not capable of eliminating HIV. HIV invariably rebounds after ART interruption and therefore life-time ART therapy is currently required for controlling virus replication. The present study appeared in Nature Medicine shed light on a fundamental issue, i.e. the identification of the cells that may be responsible for the rapid rebound of virus replication following ART interruption.
“The identification of Tfh cells as the major cell compartment containing replication competent and infectious HIV represents a major advance in our understanding of the mechanisms of HIV persistence following many years of ART-mediated virus suppression”, says Prof. Matthieu Perreau.
“We are very excited of the identification of Tfh cells as the major cell reservoir for HIV in long-term treated individuals. These observations will promote the development of therapeutic immune-based interventions that can directly target the HIV cell reservoir and have substantial impact in accelerating research in the fields of HIV functional cure and eradication”, says Prof. Pantaleo.
View source version on businesswire.com: http://www.businesswire.com/news/home/20160531005501/en/
Contact:
Lausanne University Hospital
Prof. Giuseppe Pantaleo
Giuseppe.Pantaleo@chuv.ch
or
Matthieu
Perreau
Matthieu.Perreau@chuv.ch
About Business Wire
Subscribe to releases from Business Wire
Subscribe to all the latest releases from Business Wire by registering your e-mail address below. You can unsubscribe at any time.
Latest releases from Business Wire
EVE Energy Showcases All-Scenario Energy Storage Solutions at The Smarter E Europe 20261.7.2026 03:45:00 CEST | Press release
EVE Energy unveiled its Mr. Big Family series, a 6.9+ MWh energy storage system, and all-scenario energy storage solutions at Intersolar Europe in Munich. Drawing on traceable large-cell technology, proven large-scale energy storage project delivery experience, and global delivery capabilities, the company is addressing Europe's diverse energy storage requirements across utility-scale, commercial & industrial (C&I ), and data center segments. This press release features multimedia. View the full release here: https://www.businesswire.com/news/home/20260630889717/en/ EVE Energy showcases its Mr. Giant 3.0 6.9+ MWh energy storage system at The Smarter E Europe 2026 in Munich, Germany Advancing Large-Cell Technology with Global Project Validation As one of the first companies to focus on large-capacity energy storage cells, EVE Energy has iteratively upgraded its cell platform from 560 Ah and 628 Ah to 702 Ah, adhering to a stacking process route throughout. At the exhibition, the Mr. Gia
Bending Spoons S.p.A. announces pricing of initial public offering1.7.2026 01:56:00 CEST | Press release
Bending Spoons S.p.A. (“Bending Spoons”), a leading technology company, today announces the pricing of its initial public offering (“IPO”) at $29.00 per share. A total of 57,971,015 ordinary shares are being offered, of which 34,398,640 shares are being offered by Bending Spoons and 23,572,375 shares are being offered by certain selling shareholders (the “Selling Shareholders”). Bending Spoons will not receive any proceeds from any sale of shares by the Selling Shareholders. The shares are expected to begin trading on the Nasdaq Global Select Market under the ticker symbol “BSP” on July 1, 2026. The offering is expected to close on July 2, 2026, subject to customary closing conditions. In addition, Bending Spoons and the Selling Shareholders granted the underwriters an option to purchase up to an additional 5,244,026 ordinary shares from Bending Spoons and up to an additional 3,451,626 ordinary shares from the Selling Shareholders at the initial public offering price, less underwriting
FDA Issues Modified Risk Tobacco Product Orders for 20 ZYN Nicotine Pouch Products30.6.2026 18:19:00 CEST | Press release
FDA’s decision makes ZYN the first nicotine pouch product to receive MRTP orders authorizing reduced-risk claims versus cigarettes Philip Morris International Inc. (PMI) (NYSE: PM) today announced that the U.S. Food and Drug Administration (FDA) issued Modified Risk Tobacco Product (MRTP) orders for 20 variants of ZYN nicotine pouch products. These are the first MRTP orders granted for nicotine pouches, allowing PMI U.S. to market the following claim for the authorized ZYN products: “Using ZYN instead of cigarettes puts you at a lower risk of mouth cancer, heart disease, lung cancer, stroke, emphysema, and chronic bronchitis.” “FDA’s decision is an important moment for the more than 45 million legal-age nicotine consumers in America,” saidStacey Kennedy, PMI U.S. CEO. “Today’s news ensures these adultshave access to accurate, science-based information, including FDA-authorized evidence that switching from cigarettes to ZYN reduces the risk of smoking-related diseases like heart disease
Caidya Announces Strategic Combination with Simbec-Orion Bridging Early Scientific Insight and Global Clinical Execution30.6.2026 17:00:00 CEST | Press release
Caidya today announced a strategic combination with Simbec-Orion designed to close the divide between early scientific insight and global clinical execution. The combination of Caidya and Simbec-Orion creates a differentiated specialty clinical CRO platform that enables programs to scale, maintaining focus, speed, and accountability. The strategic combination brings together complementary strengths to create a more complete development partner for innovative biopharma companies. With established operations across Europe, the Americas, APAC, and China, the combined organization provides meaningful expertise and execution capabilities in the regions that matter most. Simbec-Orion brings early-phase clinical pharmacology capabilities alongside deep therapeutic expertise for later stage complex oncology and rare disease trials, helping sponsors shape critical decisions early in the development lifecycle. Together, the organizations strengthen their ability to support complex, cross-border
Archer® Proves Purpose-Built AI Beats General-Purpose LLMs on Regulatory Change Management: 95% Verified Accuracy, 80x Faster, 92% Lower Cost30.6.2026 16:13:00 CEST | Press release
In a head-to-head benchmark, a leading general-purpose LLM was confidently wrong 35% of the time on regulatory dates. Archer Evolv™ shipped zero errors. For enterprises deploying AI in compliance, a wrong date is a missed deadline. The more dangerous failure is a wrong answer the model returns with high confidence, one that flows silently into a compliance calendar and is only discovered after the window has passed. Archer® today released results showing purpose-built AI beats a general-purpose large language model (LLM) on regulatory work, and it’s not close. This head-to-head test compared Archer’s purpose-built, vertical-specific AI and proprietary data sets against a leading general-purpose LLM, on a core compliance task: determining the publication, effective and comment-close dates of regulatory documents across six jurisdictions. General-purpose models are a genuine breakthrough, and this is no referendum on their quality. The question Archer set out to answer is narrower and mo
In our pressroom you can read all our latest releases, find our press contacts, images, documents and other relevant information about us.
Visit our pressroom