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Reports on Overseas' Conferences and Meetings
A Society Participation Report on 2010 Digestive Disease Week

Kazuko Shichijo, Department of Tumor and Diagnostic Pathology

The American Society of 2010 Digestive Disease Week, Turning Science into Medicine, was held in Ernest N. Morial Convention Center, New Orleans, Louisiana, USA, during May 2-5, 2010 by Lawrence S. Friedman, MD, DDW Council Chair. Kazuko Shichijo, Ph D, assistant professor of Department of Tumor and Diagnostic Pathology, attended the meeting.

The French Quarter was lively once again and, hotels are newly renovated, restaurants are more abundant than ever, and millions of dollars have been invested in improvements to the Convention Center. Yet, one can still find the same authentic experiences that visitors have loved for decades. History, architecture, live music, and of course, cuisine, are flourishing in today’s New Orleans.

DDW continues to be the largest meeting in the field, and its abundance of choices make it possible to plan an experience that’s the right fit for participants. The meeting consists of 1) American Association for the Study of Liver Disease (AASLD Research Highlights: Advances in Hepatology – The Year in Review), 2) AGA Institute (AGA Institute Spring Postgraduate Course), 3) American Society for Gastrointestinal Endoscopy (ASGE Postgraduate Course) and 4) Society for Surgery of the Alimentary Tract (SSAT Postgraduate Course). The participants can choose sessions that focus on a single aspect of digestive disease practice or research, multidisciplinary symposia that explore diverse approaches to clinical problems, and everything in between. Whether the participant works in patient care, research, academia, or elsewhere in the field, DDW will meet their educational needs.

At DDW, the participants were able to:
- Choose from over 400 sessions and 4,000 posters that address every aspect of digestive disease research and clinical care.
- Participate in the learning experiences that best suit their needs, whether they prefer lectures; collaborative, small-group discussion; or hands-on, skill-building workshops.
- Exchange ideas with 15,000-plus colleagues working in gastroenterology, GI endoscopy, GI surgery and hepatology around the world.
- See the latest GI products and services, provided by the exhibitors who greatly contribute to the success of DDW, in the Exhibit Hall and Product Theater by visiting Halls G-I daily.

In AGA State-of-the-Art Lecture, “Intestinal stem cells and cancer”, participants were able to:
- Clarify the functional definition of the term “stem cell”.
- Recognize the relationship between stem cells and cancer.
- Determine the involvement of Wnt in the biology of stem cells and cancer of the intestine.
It was interesting that single stem cell, Lgr5 positive, had formed crypt structure in matrigel culture, including all cell types of mini-crypt, crypt-domain. Wnt response was restricted to crypt bottoms. Moreover, many proteins were put forward as a candidate of stem cell marker in this meeting.

My presented poster was titled ”DNA Damage Response in Aberrant Crypt Foci of Radiation Colitis as Anti-cancer Barrier in Early Tumorigenesis”. Radiation therapy causes radiation colitis and tumor. We have reported that extra-colonic cells contribute to abnormal repair in radiation colitis of rats transplanted with GFP marrow after sub-lethal irradiation. Here we presented that the early precursor lesions in the regenerative stage of radiation colitis; aberrant crypt foci commonly express markers of an activated DNA damage response, γH2AX and p53.

The American Society of 2011 Digestive Disease Week will be held in McCormick place, Chicago, IL, USA, during May 7-10.
  International Radiation Health Sciences Research
    Atomic Bomb Disease Medicine Research
    Radiation Basic Life Sciences Research
    Workshop / Special Meeting
    Academic Exchange
    Reports on Overseas' Conferences and Meetings
    Cooperation with WHO
Publicity Activities
  Truth of radiology (in Japanese)
  Radiation Q&A (in Japanese)
    Introduction of Global Strategic Center for Radiation Health Risk Control
(in Japanese) [PDF 9MB]
    Visiting Report of Chelnobyl
Yasuyuki Taira, Graduate Student
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