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
Yubico Appoints Poupak Modirassari Enbom as Chief Marketing Officer to Accelerate Global Momentum and Drive Market Leadership30.3.2026 15:00:00 CEST | Press release
Yubico (NASDAQ STOCKHOLM: YUBICO), the creator of the most secure passkeys and a leading provider of hardware authentication security keys, today announced the appointment of Poupak Enbom as Chief Marketing Officer (CMO). This press release features multimedia. View the full release here: https://www.businesswire.com/news/home/20260330278027/en/ Enbom joins Yubico at a pivotal moment as organizations worldwide accelerate the shift to phishing-resistant authentication and modern identity security in the age of AI. “We’re excited to welcome Poupak to Yubico,” said Jerrod Chong, acting chief executive officer, Yubico. “As the threat landscape evolves with AI-driven attacks and increasing automation, organizations are rethinking how they secure digital identities of both humans and AI agents at scale. She brings a unique combination of technical depth, global leadership, and customer-first mindset that will help us continue to expand our impact and support our customers and partners around
Westinghouse Celebrates Record-breaking 80 Years of Nuclear Fuel Manufacture at Springfields30.3.2026 14:00:00 CEST | Press release
Fuel manufactured at Springfields has generated enough energy to supply the UK’s electricity demand for 26 years, avoiding the emission of nearly 3 billion tonnes of CO2 The Westinghouse Springfields facility in Lancashire, UK, has marked a significant milestone as the oldest continuous nuclear fuel manufacturing site in the world, starting from its original license on the 28th, March 1946. The site was chosen by the UK Government to develop nuclear fuel for the world’s earliest civil nuclear power stations, as well as subsequent Magnox and Advanced Gas Reactors (AGR) reactors. This press release features multimedia. View the full release here: https://www.businesswire.com/news/home/20260330135973/en/ From left to right: Sophie Lemaire; Marc Chevrel; Rory O'Neill; Craig Boothby; and Robert Gofton, CEO at Nuclear Institute Across the last eight decades, the Springfields site has supported the UK nuclear fleet, manufacturing more than eight million AGR pins, sintering and pressing over 5
HistoSonics Treats First Patients Evaluating the Edison® Histotripsy System for the Treatment of Benign Prostatic Hyperplasia (BPH)30.3.2026 14:00:00 CEST | Press release
HistoSonics, the developer of the Edison® Histotripsy System and novel histotripsy therapy platform, today announced the successful treatments of the first patients in WOLVERINE, a prospective feasibility trial evaluating the Edison® Histotripsy System for the treatment of benign prostatic hyperplasia (BPH) at Prince of Wales Hospital in Hong Kong, a teaching hospital for The Chinese University of Hong Kong. The Edison System is a novel, non-invasive, image guided platform that uses the mechanical properties of focused ultrasound, called histotripsy, to destroy unwanted tissue without the need for invasive procedures, and with potentially fewer side effects than traditional, invasive therapies. This press release features multimedia. View the full release here: https://www.businesswire.com/news/home/20260330349844/en/ HistoSonics Non-Invasive Edison Histotripsy System. Image credit: HistoSonics WOLVERINE is a prospective, multi-center, single-arm feasibility trial designed to evaluate
Biocytogen Grants Taisho Pharmaceutical a License to its RenNano® Fully Human Heavy Chain-Only Antibody Discovery Platform30.3.2026 13:00:00 CEST | Press release
Biocytogen Pharmaceuticals (Beijing) Co., Ltd. (Biocytogen, SSE: 688796; HKEX: 02315), a global biotechnology company that drives the research and development of novel antibody-based drugs with innovative technologies, today announced that it has entered into a platform license agreement with Taisho Pharmaceutical Co., Ltd. (“Taisho”), granting Taisho the right to access and use Biocytogen’s proprietary RenNano® fully human heavy chain-only antibody (HCAbs) discovery platform for its internal research and development programs. Under the terms of the agreement, Taisho will leverage RenNano® mice to enable the generation and screening of fully human HCAbs in vivo and to support downstream research associated with antibody discovery. Financial terms of the agreement have not been disclosed. “We are very pleased to enter into this collaboration with Taisho,” said Dr. Yuelei Shen, President and CEO of Biocytogen. “RenNano® is a robust and powerful fully human VHH discovery platform that pro
Meiji Seika Pharma Invests in Centivax to Develop Next Generation Universal Vaccine Platform30.3.2026 13:00:00 CEST | Press release
Meiji Seika Pharma Co., Ltd. (Head Office: Chuo-ku, Tokyo, President and Representative Director: Toshiaki Nagasato) today announced a strategic investment in Centivax, Inc. (Head Office: South San Francisco, CA, USA), a biotechnology company developing next-generation vaccines and therapies for universal protection against highly diverse targets. Centivax’s lead program includes a universal seasonal influenza vaccine (Centi-Flu 01) currently in a Phase 1 clinical study. Unlike conventional seasonal flu vaccines, which must be manufactured annually based on recommended candidate vaccine viruses, Centivax’s platform focuses both antibody and cellular immune responses on conserved regions of the influenza virus that cannot mutate and are shared across strains and distant subtypes. This approach aims to generate broad, consistent, and durable immunity against both seasonal and pandemic influenza. Meiji’s strategic investment aims to accelerate the advancement of Centi-Flu 01 and further a
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