|By ACN Newswire||
|June 23, 2014 10:47 PM EDT||
A new class of lipids in human leukaemia cells trigger an immune response to kill the cells
Singapore, June 24, 2014 - (ACN Newswire) - Scientists at A*STAR's Singapore Immunology Network (SIgN) have discovered a new class of lipids in the leukaemia cells that are detected by a unique group of immune cells. By recognising the lipids, the immune cells stimulate an immune response to destroy the leukaemia cells and suppress their growth. The newly identified mode of cancer cell recognition by the immune system opens up new possibilities for leukaemia immunotherapy.
Leukaemia is characterized by the accumulation of cancer cells originating from blood cells, in the blood or bone marrow. Current treatments for leukaemia largely involve chemotherapy to eradicate all cancer cells, followed by stem cell transplants to restore healthy blood cells in the patients.
In a recent study reported in the Journal of Experimental Medicine (JEM) online, the team co-led by Dr Lucia Mori and Prof Gennaro De Libero identified a new class of lipids, methyl-lysophosphatidic acids (mLPA), which accumulate in leukaemia cells. Following which, the team identified a specific group of immune cells, described as mLPA-specific T-cells that are capable of recognising the mLPA in the leukaemia cells. The detection triggers an immune response that activates the T cells to kill the leukaemia cells and limits cancer progression. The efficacy of the T cells in killing leukaemia cells was also demonstrated in a mouse model of human leukaemia.
Thus far, only proteins in cancer cells have been known to activate T cells. This study is a pioneer in its discovery of mLPA, and the specific T cells which can identify lipids expressed by cancer cells. Unlike proteins, lipids in cancer cells donot differ between individuals, indicating that the recognition of mLPA by mLPA-specific T-cells happens in all leukaemia patients. This new mode of cancer cell recognition suggests that the T-cells can potentially be harnessed for a leukaemia immunotherapy that is effective in all patients.
"The identification of mLPA and its role in activating specific T cells is novel. This knowledge not only sheds light on future leukaemia studies, but also complements ongoing leukaemia immunotherapy studies focusing on proteins in cancer cells," said Dr Lucia Mori, Principal Investigator at SIgN. "Current treatments run the risk of failure due to re-growth of residual leukaemia cells that survive after stem cell transplants. T-cell immunotherapy may serve as a complementary treatment for more effective and safer therapeutic approach towards leukaemia."
Professor Laurent Renia, Acting Executive Director of SIgN, said, "At SIgN, we study how the human immune system protects us naturally from infections. We engage in promising disease-specific research projects that ultimately pave the way for the development of treatments and drugs which can better combat these diseases. A pertinent example will be this study; this mode of immune recognition of leukaemia cells is an insightful discovery that will create new opportunities for immunotherapy to improve the lives of leukaemia patients."
 Immunotherapy refers to treatment of diseases by modifying immune cells and re-introducing them into the patients to induce, enhance, or suppress an immune response.
Notes to Editor:
The research findings described in this media release can be found in the Journal of Experimental Medicine, under the title, "A novel self-lipid antigen targets human T cells against CD1c+ leukaemias" by Marco Lepore,1,2,11, Claudia de Lalla,2,11, Gundimeda S. Ramanjaneyulu,1,11, Heiko Gsellinger,3, Michela Consonni,2, Claudio Garavaglia,2, Sebastiano Sansano,1, Francesco Piccolo,2, Andrea Scelfo,2, Daniel Haussinger,3, Daniela Montagna,4 ,Franco Locatelli,5, Chiara Bonini,6, Attilio Bondanza,6, Alessandra Forcina,7, Zhiyuan Li,8, Guanghui Ni,8, Fabio Ciceri,7, Paul Jeno,9, Chengfeng Xia,8, Lucia Mori1,10 , Paolo Dellabona,2, Giulia Casorati,2 and Gennaro De Libero,1,10.
1. Experimental Immunology, Department of Biomedicine, University Hospital Basel, 4031 Basel, Switzerland
2. Experimental Immunology Unit, Division of Immunology, Transplantation and Infectious Diseases, San Raffaele Scientific Institute, 20132 Milano, Italy
3. NMR-Laboratory, Department of Chemistry, University of Basel, 4056 Basel, Switzerland
4. Laboratory of Immunology, Department of Pediatrics, University of Pavia and Fondazione IRCCS Policlinico San Matteo, 27100 Pavia, Italy
5. Department of Pediatric Hematology-Oncology, IRCCS Bambino Gesu Hospital, 00165 Rome, Italy
6. Experimental Hematology Unit, San Raffaele Scientific Institute, 20132 Milan, Italy
7, Bone Marrow Transplantation Unit, San Raffaele Scientific Institute, 20132 Milan, Italy
8. State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China
9. Department of Biochemistry, Biozentrum, University of Basel, 4056 Basel, Switzerland,
10. Singapore Immunology Network (SIgN), Agency for Science, Technology and Research, 138648 Singapore
11. M.L., C.d.L. and G.S.R. contributed equally to this work
Full text of the Journal of Experimental Medicine paper can be accessed online from: http://jem.rupress.org/content/early/2014/06/11/jem.20140410.abstract
About the Singapore Immunology Network (SIgN)
The Singapore Immunology Network (SIgN), officially inaugurated on 15 January 2008, is a research consortium under the Agency for Science, Technology and Research (A*STAR)'s Biomedical Research Council. The mandate of SIgN is to advance human immunology research and participate in international efforts to combat major health problems. Since its launch, SIgN has grown rapidly and currently includes 250 scientists from 26 different countries around the world working under 28 renowned principal investigators. At SIgN, researchers investigate immunity during infection and various inflammatory conditions including cancer and are supported by cutting edge technological research platforms and core services.
Through this, SIgN aims to build a strong platform in basic human immunology research for better translation of research findings into clinical applications. SIgN also sets out to establish productive links with local and international institutions, and encourage the exchange of ideas and expertise between academic, industrial and clinical partners and thus contribute to a vibrant research environment in Singapore. For more information about SIgN, please visit www.sign.a-star.edu.sg.
The Agency for Science, Technology and Research (A*STAR) is Singapore's lead public sector agency that fosters world-class scientific research and talent to drive economic growth and transform Singapore into a vibrant knowledge-based and innovation driven economy.
In line with its mission-oriented mandate, A*STAR spearheads research and development in fields that are essential to growing Singapore's manufacturing sector and catalysing new growth industries. A*STAR supports these economic clusters by providing intellectual, human and industrial capital to its partners in industry.
A*STAR oversees 18 biomedical sciences and physical sciences and engineering research entities, located in Biopolis and Fusionopolis, as well as their vicinity. These two R&D hubs house a bustling and diverse community of local and international research scientists and engineers from A*STAR's research entities as well as a growing number of corporate laboratories. For more information on A*STAR, please visit www.a-star.edu.sg.
Tan Yun Yun Senior Officer, Corporate Communications Agency for Science, Technology and Research Tel: +65 6826 6273 Email: [email protected]
Copyright 2014 ACN Newswire. All rights reserved.
SYS-CON Events announced today that Secure Infrastructure & Services will exhibit at SYS-CON's 16th International Cloud Expo®, which will take place on June 9-11, 2015, at the Javits Center in New York City, NY, and the 17th International Cloud Expo®, which will take place on November 3–5, 2015, at the Santa Clara Convention Center in Santa Clara, CA. Secure Infrastructure & Services (SIAS) is a managed services provider of cloud computing solutions for the IBM Power Systems market. The company...
May. 3, 2015 03:00 PM EDT Reads: 935
Enterprise IoT is an exciting and chaotic space with a lot of potential to transform how the enterprise resources are managed. In his session at @ThingsExpo, Hari Srinivasan, Sr Product Manager at Cisco, will describe the challenges in enabling mass adoption of IoT, and share perspectives and insights on architectures/standards/protocols that are necessary to build a healthy ecosystem and lay the foundation to for a wide variety of exciting IoT use cases in the years to come.
May. 3, 2015 03:00 PM EDT Reads: 1,121
SYS-CON Events announced today that CenturyLink, Inc., a leader in the network services market, has been named “Platinum Sponsor” of SYS-CON's 16th International Cloud Expo®, which will take place on June 9-11, 2015, at the Javits Center in New York City, NY. CenturyLink is the third largest telecommunications company in the United States and is recognized as a leader in the network services market by technology industry analyst firms. The company is a global leader in cloud infrastructure and ...
May. 3, 2015 02:30 PM EDT Reads: 1,034
Docker is becoming very popular--we are seeing every major private and public cloud vendor racing to adopt it. It promises portability and interoperability, and is quickly becoming the currency of the Cloud. In his session at DevOps Summit, Bart Copeland, CEO of ActiveState, discussed why Docker is so important to the future of the cloud, but will also take a step back and show that Docker is actually only one piece of the puzzle. Copeland will outline the bigger picture of where Docker fits a...
May. 3, 2015 02:15 PM EDT Reads: 5,121
SYS-CON Events announced today the DevOps Foundation Certification Course, being held June ?, 2015, in conjunction with DevOps Summit and 16th Cloud Expo at the Javits Center in New York City, NY. This sixteen (16) hour course provides an introduction to DevOps – the cultural and professional movement that stresses communication, collaboration, integration and automation in order to improve the flow of work between software developers and IT operations professionals. Improved workflows will res...
May. 3, 2015 12:30 PM EDT Reads: 3,196
As cloud gives an opportunity to businesses to buy services externally – how is cloud impacting your customers? In his General Session at 15th Cloud Expo, Fabio Gori, Director of Worldwide Cloud Marketing at Cisco, provided answers to big questions: Do you see hybrid cloud as where the world is going? What benefits does it bring? And how does Cisco connect all of these clouds? He also discussed Intercloud and Cisco’s investment on it.
May. 3, 2015 12:00 PM EDT Reads: 4,975
SYS-CON Events announced today that B2Cloud, a provider of enterprise resource planning software, will exhibit at SYS-CON's 16th International Cloud Expo®, which will take place on June 9-11, 2015, at the Javits Center in New York City, NY. B2cloud develops the software you need. They have the ideal tools to help you work with your clients. B2Cloud’s main solutions include AGIS – ERP, CLOHC, AGIS – Invoice, and IZUM
May. 3, 2015 12:00 PM EDT Reads: 4,339
Containers and microservices have become topics of intense interest throughout the cloud developer and enterprise IT communities. Accordingly, attendees at the upcoming 16th Cloud Expo at the Javits Center in New York June 9-11 will find fresh new content in a new track called PaaS | Containers & Microservices Containers are not being considered for the first time by the cloud community, but a current era of re-consideration has pushed them to the top of the cloud agenda. With the launch ...
May. 3, 2015 12:00 PM EDT Reads: 3,682
A new definition of Big Data & the practical applications of the defined components & associated technical architecture models This presentation introduces a new definition of Big Data, along with the practical applications of the defined components and associated technical architecture models. In his session at Big Data Expo, Tony Shan will start with looking into the concept of Big Data and tracing back the first definition by Doug Laney, and then he will dive deep into the description of 3V...
May. 3, 2015 12:00 PM EDT Reads: 929
SYS-CON Events announced today that MangoApps will exhibit at SYS-CON's 16th International Cloud Expo®, which will take place on June 9-11, 2015, at the Javits Center in New York City, NY., and the 17th International Cloud Expo®, which will take place on November 3–5, 2015, at the Santa Clara Convention Center in Santa Clara, CA. MangoApps provides private all-in-one social intranets allowing workers to securely collaborate from anywhere in the world and from any device. Social, mobile, and eas...
May. 3, 2015 11:00 AM EDT Reads: 4,263
There is no doubt that Big Data is here and getting bigger every day. Building a Big Data infrastructure today is no easy task. There are an enormous number of choices for database engines and technologies. To make things even more challenging, requirements are getting more sophisticated, and the standard paradigm of supporting historical analytics queries is often just one facet of what is needed. As Big Data growth continues, organizations are demanding real-time access to data, allowing immed...
May. 3, 2015 11:00 AM EDT Reads: 5,549
The world's leading Cloud event, Cloud Expo has launched Microservices Journal on the SYS-CON.com portal, featuring over 19,000 original articles, news stories, features, and blog entries. DevOps Journal is focused on this critical enterprise IT topic in the world of cloud computing. Microservices Journal offers top articles, news stories, and blog posts from the world's well-known experts and guarantees better exposure for its authors than any other publication. Follow new article posts on T...
May. 3, 2015 11:00 AM EDT Reads: 2,777
WebRTC defines no default signaling protocol, causing fragmentation between WebRTC silos. SIP and XMPP provide possibilities, but come with considerable complexity and are not designed for use in a web environment. In his session at @ThingsExpo, Matthew Hodgson, technical co-founder of the Matrix.org, discussed how Matrix is a new non-profit Open Source Project that defines both a new HTTP-based standard for VoIP & IM signaling and provides reference implementations.
May. 3, 2015 10:45 AM EDT Reads: 4,178
The security devil is always in the details of the attack: the ones you've endured, the ones you prepare yourself to fend off, and the ones that, you fear, will catch you completely unaware and defenseless. The Internet of Things (IoT) is nothing if not an endless proliferation of details. It's the vision of a world in which continuous Internet connectivity and addressability is embedded into a growing range of human artifacts, into the natural world, and even into our smartphones, appliances, a...
May. 3, 2015 10:30 AM EDT Reads: 5,192
There are 182 billion emails sent every day, generating a lot of data about how recipients and ISPs respond. Many marketers take a more-is-better approach to stats, preferring to have the ability to slice and dice their email lists based numerous arbitrary stats. However, fundamentally what really matters is whether or not sending an email to a particular recipient will generate value. Data Scientists can design high-level insights such as engagement prediction models and content clusters that a...
May. 3, 2015 10:15 AM EDT Reads: 4,259