The 21^st Conference on International Exchange of Professionals - Parallel Session in Japan and The 12^th Anniversary World DNA Day (WDD-2024) was successfully held on April 22-24, 2024 at the beautiful Nagoya Tokyu Hotel, Japan. WDD-2024 was proudly hosted by China Association for International Exchange of Personnel and World High Technology Society, and efficiently operated by China Association for International Exchange of Personnel Japan Representative Office, Shenzhen Center for International Exchange of Personnel and BIT Group Global Ltd.. It integrated 4 distinct parallel meetings together, which were The 12^th Anniversary World DNA Day, The 13^th World Gene Convention, The 10^th Annual Conference of AnalytiX, and The 14^th World Congress of Regenerative Medicine & Stem Cell. Following the meticulous preparation, nearly 200 specialists from 38 countries and areas joined us in this endeavor.

The Opening Ceremony and Keynote Forum took place on the morning of the first day of te meeting, and the world-leading scientists, Dr. Yukihiro Ozaki, Professor Emeritus, Kwansei Gakuin University, Japan; Dr. Elamin M. Elamin, Assistant Dean & Professor of Medicine, University of South Florida, Morsani College of Medicine, USA; Dr. Wolf-Dieter Grimm, Professor, Witten/Herdecke University, Germany; Dr. Jake Jinkun Chen, Professor, Tufts University, USA; Dr. Dong Xu, Curators' Distinguished Professor, University of Missouri-Columbia, USA; Fellow of American Association for the Advancement of Science (AAAS) & American Institute for Medical and Biological Engineering (AIMBE); Dr. Frants Roager Lauritsen, Professor, University of Southern Denmark, Denmark presented the keynote lectures. More than 150 honored guests attended those important activities. Dr. Jake Jinkun Chen as moderator of the two parts expressed great gratitude to the presence of all delegates, speakers and participants and particularly wished all the guests a memorable stay in Japan on behalf of the organizing committee. Eminent session speakers from various reputed companies and Universities made their resplendent presence and addressed the gathering.