Nagasaki Atomic Bomb Survivors Tumor Tissue Bank
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  The Atomic Bomb Disease Institute ”Department of Tumor and Diagnostic Pathology” (Genken Byouri) has been pursuing the late effects of radiation on a human body.
We are also doing research using A-bomb survivors’ biomaterial and example of biopsy, especially we are tackling energetically the molecular pathology analysis of the tumor which is a typical disease of A- bomb survivors' late-onset radiation injury (atomic bomb disease). And we are also promoting simultaneously the basic research about the prevention method and cure for the enteritis which is the side effects accompanying an acute radiation intestinal disease and radio therapy.
In addition, we are also doing positively general human pathology research like pathological anatomy and surgical pathology, and are tackling training of the pathology medical specialist who contributes to community medicine. 
Clarifying the molecular mechanism which continues and increases the carcinogenic risk which is the most important problem of atomic bomb disease, we develop it into the elucidation of the molecular mechanism of general carcinogenesis and the creation of new diagnostic technology.

Showa 39 (1964) The Atomic Bomb Disease Institute ”Department of Pathology“ was established.
Mr. Issei Nishimori assumed the position of the first professor.
When he was a third-year student at the Nagasaki University medical department and was conducting clinical training in the attached hospital, he was exposed to atomic bomb.
The "Blood-stained white robe" at that time has been exhibited in the Atomic Bomb Disease Institute No. 2 hall, the Atomic Bomb Data Room still now.
The subjects of research under his teaching tenure were 1) high blood pressure and vascular lesion 2) kidney disease and 3) atomic bomb disease, and he accomplished much pathology epidemiological precious achievements carrying out arrangement collection Nagasaki A-bomb survivors' dissection and the biopsy tissue sample.
Showa 47 (1972) The Atomic Bomb Disease Data Center was established.
Its purpose was collection, preservation and use of scientific materials, and it was also an acceptance of huge scientific data, the pathology specimen and living specimen which were requisitioned by the U.S. Forces after the war and then were returned to Japan from The U.S Armed Forces Institute of Pathology (AFIP).
Showa 49 (1974)

The Atomic Bomb Disease Data Center was renamed the Scientific Data Center for the Atomic Bomb Disaster.
Business was started by two departments of a documentary search part and a pathologic part. Professor Nishimori served concurrently as a chief of the pathologic department, and the Atomic Bomb Disease Institute ”Department of Tumor and Diagnostic Pathology” and the Scientific Data Center for the Atomic Bomb Disaster (the present the Tissue and Histopathology Section) are doing jointly pathology research using an A-bomb survivors’ specimen since then.

Showa 62 (1987) Mr. Ichiro Sekine assumed the position of the second professor.
Heisei 9 (1997) The Atomic Bomb Disease Institute was reorganized.
The Scientific Data Center for the Atomic Bomb Disaster was unified and ”Department of International Health Radiation Research” and “Division of Scientific Date Registry” were established newly in addition to two main unit “Radiation Effect Research Unit (four department)” and “Molecule Medicine Unit (four department)”,
The official name of Genken Byouri became Radiation Life Science Unit “Department of Molecular Medicine”.
Heisei 14 (2002) The Nagasaki University Graduate School of Biomedical Sciences was established.
It belongs to a radiation medical science major department as a graduate school.
Heisei 16(2004) The official name of our department was changed to “Department of Tumor and Diagnostic Pathology” with turning a national university into an independent administrative agency.
Heisei 22(2010) Masahiro Nakashima has assumed the position of the third professor.
Heisei25(2013) Reorganized into research institute affiliated to Nagasaki University.

Professor Sekine's tenure was for 22 years and 28 graduate students were awarded a Doctor of Medicine in the meantime. They are playing an active part as a pathologist and a clinician.
There are also many foreign students from overseas and some students of them became professors in Taiwan, Kazakhstan, and China.
The subjects of their research are 1) pathology epidemiological survey of atomic bomb disease 2) radiation enteritis and induced cancer pathology analysis 3) basic research of radiation-injury cure 4) study of the mechanism for cancer of A-bomb survivors 5) analysis of proliferation and progression factor of digestive cancer.
Nagasaki University