Dr. J.Justin McCormick
B620 West Fee Hall
Michigan State University
East Lansing, MI 48824
Phone: 517-353-7785
Fax: 517-353-9004
Email: mccormi1@cranium.com.msu.edu
Projects are approved by an IRB located at: Michigan State University.
The approving IRB operates under a Multiple Project Assurance (MPA) recognized by DOE or by the Department of Health and Human Services (HHS).
MPA number of the IRB: M-1239
Number of Human Subjects Projects reported: 1
Project Identifier: MSU-93-FG02-87ER60524
Project Title:
Malignant Transformation of Human Fibroblasts by Neutrons and Gamma Radiation: Relationship to Mutations Induced
Principal Investigator:
Dr. J. Justin McCormick
Project started in: 1993
This project ended in Fiscal Year 1996.
Project Funding Information:
Project did not receive funding in Fiscal Year 1996.
Project used human subjects in Fiscal Year 1996.
Explanation:
No funds received in FY96.
Funding Sources:
Project does not involve use of multiple protocols/subprojects.
IRB Review:
Type of Review: Full Board
Most Recent Approval: June 19, 1995
IRB Approval Number: 93-337
Number of Human Subjects who participated in this project/protocol during
FY 1996 (10/1/95 - 9/30/96): 2
Type of Human Subjects Involvement:
(a) The objective of this research is to determine whether human fibroblasts in culture exhibit a cell cycle sensitivity to transformation by ionizing or neutron radiation. (b) This is carried out by synchronizing a special strain of human fibroblast cells (MSU-1.1) developed in this laboratory and then exposing them to radiation at different points in the cell cycle. The cells are then grown for a few days and then assayed for their ability to form foci. Cells isolated from foci form tumors in athymic mice about 30% of the time. MSU-1.1 cells do not form tumors. Results so far indicate that human fibroblasts are hypersensitive to transformation by ionizing radiation during S phase which is quite different than the hypersensitive phase observed in mouse fibroblasts. They are hypersensitive during G2/M. (c) Since the experiments are carried out on cells in culture, the human who was the donor of the cells used is not exposed to any chemical or radioactive material. (d) This proposal makes use of human fibroblasts in culture. They were originally obtained from foreskin tissue of a newborn with the written permission of the parents. The circumcision was undertaken for medical reasons at the explicit wish of the parents.