Welcome!

News Feed Item

Novel Gene Predicts Both Breast Cancer Relapse and Response to Chemotherapy



A predictive marker discovered by scientists at A*STAR and NUS could help doctors classify breast cancer patients for more effective treatment

Figure 1: Difference in DP103 (red) levels in a healthy person (left image) and a breast cancer patient (right image)
Singapore, Aug 20, 2014 - (ACN Newswire) - Scientists have made it easier to predict both breast cancer relapses and responses to chemotherapy, through the identification of a unique gene. The newly found marker could help doctors classify each breast cancer patient and customise a treatment regimen that is more effective. The discovery was a collaborative effort by scientists from A*STAR's Institute of Molecular and Cell Biology (IMCB), and the Cancer Science Institute of Singapore (CSI Singapore) at the National University of Singapore (NUS).

Despite advancements in cancer treatment, breast cancer remains the most common cancer among Singapore women[1]. Thirty percent[2] of early breast cancer patients in the world experience relapse due to metastasis, or the spread of cancer cells to other organs in the body. Some patients also do not respond well to chemotherapy. The inability to forecast relapses or the effectiveness of chemotherapy has led to a pressing need to identify predictive markers, which doctors can use to tailor appropriate treatment for each breast cancer patient at an early stage.

In a study published recently in the Journal of Clinical Investigation, a top-tier journal for discoveries in basic and clinical biomedical research, the team of scientists jointly led by Dr Vinay Tergaonkar, Principal Investigator at IMCB and Dr Alan Prem Kumar, Principal Associate at CSI Singapore and Assistant Professor at the Department of Pharmacology, NUS Yong Loo Lin School of Medicine, uncovered a gene, DP103, which is activated in metastatic breast cancer. DP103 acts as a master regulator, which expresses two sets of unfavourable proteins - one leads to metastasis and the other causes patients to be unresponsive to chemotherapy. Consequently, doctors can predict the probability of metastasis by examining the levels of DP103 in breast cancer patients. The same gene could also be used to predict whether a patient would respond to chemotherapy.

"Doctors are unable to tell if a breast cancer patient will respond to chemotherapy until six months after the treatment has been prescribed. It is very worrisome as the ones who are not responsive to chemotherapy usually also suffer relapses due to metastasis. This DP103 gene that we found explains the link and will facilitate doctors in selecting suitable treatments for different cases of breast cancer," said Dr Tergaonkar.

In addition, the study revealed that reducing the levels of DP103 could contain the cancer, shrink the tumour and make patients more amenable to chemotherapy. All the findings in the study have been validated with samples of breast cancer patients from Singapore, Canada, China and the USA.

"DP103 is a novel biomarker that could help doctors select appropriate treatments for breast cancer patients at an early stage. It is also a therapeutic target which could be explored further to develop drugs that suppress breast cancer growth, as well as metastasis," said Dr Kumar, who first discovered DP103's oncogene potential to drive breast cancer metastasis. He is also the Principal Inventor to a patent application on this discovery and is currently looking into ways to regulate DP103 levels in a variety of cancer types at CSI Singapore.

[1] Top 10 cancers affecting Singapore women: http://bit.ly/VEg7F8
[2] Lancet 365:1687-1717, 2005 - Early Breast Cancer Trialists' Collaborative Group: Effects of chemotherapy and hormonal therapy for early breast cancer on recurrence; 15-year survival: An overview of the randomised trials

Notes to Editor:

The research findings described in this media release can be found in the Journal of Clinical Investigation Journal, under the title, "DEAD-box Helicase DP103 Defines Metastatic Potential of Human Breast Cancers" by Eun Myoung Shin 1,2, Hui Sin Hay 1,2,3, Moon Hee Lee 4, Jen Nee Goh 1,3, Tuan Zea Tan 1, Yin Ping Sen 5, See Wee Lim 5, Einas M. Yousef 6, Hooi Tin Ong 7, Aye Aye Thike 8, Xiangjun Kong 9, Zhengsheng Wu 9, Earnest Mendoz 10, Wei Sun 10, Manuel Salto-Tellez 1,11,12, Chwee Teck Lim 10,13,14, Peter E. Lobie 1,3,15, Yoon Pin Lim 16, Celestial T. Yap 17,18, Qi Zeng 2,16, Gautam Sethi 1,3, Martin B. Lee 19, Patrick Tan 1,20,21, Boon Cher Goh 1,18,22, Lance D. Miller 23, Jean Paul Thiery 1,2,16,18, Tao Zhu 9, Louis Gaboury 6, Puay Hoon Tan 8, Kam Man Hui 7, George Wai-Cheong Yip 5, Shigeki Miyamoto 4, Alan Prem Kumar 1,3,18,24,25, Vinay Tergaonkar 2,16.

1 Cancer Science Institute of Singapore, National University of Singapore, Singapore
2 Institute of Molecular and Cellular Biology, A*Star, Singapore Departments of 3 Pharmacology, 5 Anatomy, 11 Pathology, 16 Biochemistry, and 17 Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
4 McArdle Laboratory for Cancer Research, Department of Oncology, University of Wisconsin-Madison, Wisconsin, USA
6 Institute for research in immunology and cancer (IRIC), University of Montreal, Quebec, Canada
7 Division of Cellular and Molecular Research, Humphrey Oei Institute of Cancer Research, National Cancer Centre, Singapore
8 Department of Pathology, Singapore General Hospital, Singapore
9 Hefei National Laboratory for Physical Sciences at Microscale and School of Life Sciences, University of Science and Technology of China, Hefei, Anhui, P.R. China
10 Division of Bioengineering and Department of Mechanical Engineering, National University of Singapore, Singapore
12 Centre for Cancer Research and Cell Biology, Queen's University Belfast, United Kingdom
13 Mechanobiology Institute, National University of Singapore, Singapore
14 NUS Graduate School for Integrative Sciences and Engineering, National University of Singapore, Singapore
15 Liggins Institute, University of Auckland, New Zealand
18 National University Cancer Institute, Singapore
19 Renal Center, National University Hospital, Singapore
20 Cancer and Stem Cell Biology, Duke-NUS Graduate Medical School, Singapore
21 Genome Institute of Singapore, A*Star, Singapore
22 Department of Haematology-Oncology, National University Hospital, Singapore
23 Department of Cancer Biology, Wake Forest University School of Medicine, Winston-Salem, North Carolina, USA
24 School of Biomedical Sciences, Faculty of Health Sciences, Curtin University, Western Australia
25 Department of Biological Sciences, University of North Texas, Denton, Texas, USA.

Full text of the Journal of Clinical Investigation paper can be accessed online from: http://www.ncbi.nlm.nih.gov/pubmed/25083991

About the Agency for Science, Technology and Research (A*STAR)

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.

About the Institute of Molecular and Cell Biology (IMCB)

The Institute of Molecular and Cell Biology (IMCB) was launched on 23 January 1985, with its official opening ceremony held on 2 October 1987 at the National University of Singapore (NUS). It subsequently became an autonomous research institute (RI) of A*STAR, moving to Biopolis in 2004. IMCB's vision is to be a premier cell and molecular biology institute which addresses the mechanistic basis of human diseases and its mission is to conduct cutting-edge discovery research in disease pathways; to groom early career researchers to be future leaders in research; and to collaborate with medical and industry communities for research impact. IMCB plays an important role training and recruiting scientific talents, and has contributed to the development of other research entities in Singapore. Its success in fostering a biomedical research culture in Singapore has catalysed Singapore's transformation into an international hub for biomedical research, development and innovation.

Funded primarily by the Biomedical Research Council (BMRC) of A*STAR, IMCB's current discovery research includes cell biology in health and disease; animal models of development & disease; cancer & stem cell genetics & genomics; and structural biology & drug discovery. IMCB's translational research includes humanised model organisms for human diseases; systems approach for disease target identification & validation; and protein engineering & antibody development for diagnostics & therapeutics. Research activities in IMCB are supported by cutting edge infrastructure and facilities including quantitative proteomics; humanised mice; mouse models of human cancer; protein crystallography X-ray; zebrafish for drug metabolism & toxicology; advanced molecular histopathology; imaging & electron microscopy; and DNA sequencing. For more information about IMCB, visit www.imcb.a-star.edu.sg

About National University of Singapore (NUS)

A leading global university centred in Asia, the National University of Singapore (NUS) is Singapore's flagship university, which offers a global approach to education and research, with a focus on Asian perspectives and expertise.

NUS has 16 faculties and schools across three campuses. Its transformative education includes a broad-based curriculum underscored by multi-disciplinary courses and cross-faculty enrichment. Over 37,000 students from 100 countries enrich the community with their diverse social and cultural perspectives.

NUS has three Research Centres of Excellence (RCE) and 24 university-level research institutes and centres. It is also a partner in Singapore's fifth RCE. NUS shares a close affiliation with 16 national-level research institutes and centres. Research activities are strategic and robust, and NUS is well-known for its research strengths in engineering, life sciences and biomedicine, social sciences and natural sciences. It also strives to create a supportive and innovative environment to promote creative enterprise within its community. For more information, please visit www.nus.edu.sg

About Cancer Science Institute of Singapore

The Cancer Science Institute of Singapore (CSI Singapore) was officially launched on 15 October 2008. CSI Singapore aims to position Singapore as a global-leader in the field of Biomedical Sciences. Its mission: to conduct a multifaceted and coordinated approach to cancer research, extending from basic cancer studies all the way to experimental therapeutics and in so doing improve cancer treatment.

CSI Singapore is a state-of-the-art university research institute affiliated with, and hosted at the National University of Singapore. In 2008, it was awarded a $172 million "Research Center of Excellence" grant, one of only five in Singapore, by the National Research Foundation and the Ministry of Education. Professor Daniel G Tenen, MD, was named its founding director. Professor Tenen is a leader in the field of transcriptional regulation, hematopoiesis, and cancer.

The institute is an anchor for research expertise in two broad programs; Cancer Biology & Stem Cells, and Experimental Therapeutics; these programs form expansive platforms for CSI Singapore's focus on key cancer disease cancers in gastric, liver, lung and leukemia which are endemic in Asian populations. For more information, please visit http://www.csi.nus.edu.sg/wp/

Contact:

Tan Yun Yun
Senior Officer, Corporate Communications
Agency for Science, Technology and Research
Tel: +65 6826 6273
Email: [email protected]

Kimberley Wang
Assistant Manager (Media Relations), Office of Corporate Relations
National University of Singapore
Tel: +65 6601 1653
Email: [email protected]

Source: A*STAR

Copyright 2014 ACN Newswire. All rights reserved.

More Stories By ACN Newswire

Copyright 2008 ACN Newswire. All rights reserved. Republication or redistribution of ACN Newswire content is expressly prohibited without the prior written consent of ACN Newswire. ACN Newswire shall not be liable for any errors or delays in the content, or for any actions taken in reliance thereon.

Latest Stories
Data is an unusual currency; it is not restricted by the same transactional limitations as money or people. In fact, the more that you leverage your data across multiple business use cases, the more valuable it becomes to the organization. And the same can be said about the organization’s analytics. In his session at 19th Cloud Expo, Bill Schmarzo, CTO for the Big Data Practice at EMC, will introduce a methodology for capturing, enriching and sharing data (and analytics) across the organizati...
Enterprises have forever faced challenges surrounding the sharing of their intellectual property. Emerging cloud adoption has made it more compelling for enterprises to digitize their content, making them available over a wide variety of devices across the Internet. In his session at 19th Cloud Expo, Santosh Ahuja, Director of Architecture at Impiger Technologies, will introduce various mechanisms provided by cloud service providers today to manage and share digital content in a secure manner....
SYS-CON Events announced today that Isomorphic Software will exhibit at DevOps Summit at 19th International Cloud Expo, which will take place on November 1–3, 2016, at the Santa Clara Convention Center in Santa Clara, CA. Isomorphic Software provides the SmartClient HTML5/AJAX platform, the most advanced technology for building rich, cutting-edge enterprise web applications for desktop and mobile. SmartClient combines the productivity and performance of traditional desktop software with the simp...
Why do your mobile transformations need to happen today? Mobile is the strategy that enterprise transformation centers on to drive customer engagement. In his general session at @ThingsExpo, Roger Woods, Director, Mobile Product & Strategy – Adobe Marketing Cloud, covered key IoT and mobile trends that are forcing mobile transformation, key components of a solid mobile strategy and explored how brands are effectively driving mobile change throughout the enterprise.
With so much going on in this space you could be forgiven for thinking you were always working with yesterday’s technologies. So much change, so quickly. What do you do if you have to build a solution from the ground up that is expected to live in the field for at least 5-10 years? This is the challenge we faced when we looked to refresh our existing 10-year-old custom hardware stack to measure the fullness of trash cans and compactors.
The emerging Internet of Everything creates tremendous new opportunities for customer engagement and business model innovation. However, enterprises must overcome a number of critical challenges to bring these new solutions to market. In his session at @ThingsExpo, Michael Martin, CTO/CIO at nfrastructure, outlined these key challenges and recommended approaches for overcoming them to achieve speed and agility in the design, development and implementation of Internet of Everything solutions wi...
Cloud computing is being adopted in one form or another by 94% of enterprises today. Tens of billions of new devices are being connected to The Internet of Things. And Big Data is driving this bus. An exponential increase is expected in the amount of information being processed, managed, analyzed, and acted upon by enterprise IT. This amazing is not part of some distant future - it is happening today. One report shows a 650% increase in enterprise data by 2020. Other estimates are even higher....
With over 720 million Internet users and 40–50% CAGR, the Chinese Cloud Computing market has been booming. When talking about cloud computing, what are the Chinese users of cloud thinking about? What is the most powerful force that can push them to make the buying decision? How to tap into them? In his session at 18th Cloud Expo, Yu Hao, CEO and co-founder of SpeedyCloud, answered these questions and discussed the results of SpeedyCloud’s survey.
Today we can collect lots and lots of performance data. We build beautiful dashboards and even have fancy query languages to access and transform the data. Still performance data is a secret language only a couple of people understand. The more business becomes digital the more stakeholders are interested in this data including how it relates to business. Some of these people have never used a monitoring tool before. They have a question on their mind like “How is my application doing” but no id...
Smart Cities are here to stay, but for their promise to be delivered, the data they produce must not be put in new siloes. In his session at @ThingsExpo, Mathias Herberts, Co-founder and CTO of Cityzen Data, will deep dive into best practices that will ensure a successful smart city journey.
DevOps at Cloud Expo, taking place Nov 1-3, 2016, at the Santa Clara Convention Center in Santa Clara, CA, is co-located with 19th Cloud Expo and will feature technical sessions from a rock star conference faculty and the leading industry players in the world. The widespread success of cloud computing is driving the DevOps revolution in enterprise IT. Now as never before, development teams must communicate and collaborate in a dynamic, 24/7/365 environment. There is no time to wait for long dev...
Identity is in everything and customers are looking to their providers to ensure the security of their identities, transactions and data. With the increased reliance on cloud-based services, service providers must build security and trust into their offerings, adding value to customers and improving the user experience. Making identity, security and privacy easy for customers provides a unique advantage over the competition.
Qosmos has announced new milestones in the detection of encrypted traffic and in protocol signature coverage. Qosmos latest software can accurately classify traffic encrypted with SSL/TLS (e.g., Google, Facebook, WhatsApp), P2P traffic (e.g., BitTorrent, MuTorrent, Vuze), and Skype, while preserving the privacy of communication content. These new classification techniques mean that traffic optimization, policy enforcement, and user experience are largely unaffected by encryption. In respect wit...
SYS-CON Events announced today that StarNet Communications will exhibit at the 19th International Cloud Expo, which will take place on November 1–3, 2016, at the Santa Clara Convention Center in Santa Clara, CA. StarNet Communications’ FastX is the industry first cloud-based remote X Windows emulator. Using standard Web browsers (FireFox, Chrome, Safari, etc.) users from around the world gain highly secure access to applications and data hosted on Linux-based servers in a central data center. ...
SYS-CON Events announced today that 910Telecom will exhibit at the 19th International Cloud Expo, which will take place on November 1–3, 2016, at the Santa Clara Convention Center in Santa Clara, CA. Housed in the classic Denver Gas & Electric Building, 910 15th St., 910Telecom is a carrier-neutral telecom hotel located in the heart of Denver. Adjacent to CenturyLink, AT&T, and Denver Main, 910Telecom offers connectivity to all major carriers, Internet service providers, Internet backbones and ...