Gynecologic and Obstetric Investigation
Original Article
Towards Fibroid Gene Therapy: Adenovirus-Mediated Delivery of Herpes Simplex Virus 1 Thymidine Kinase Gene/Ganciclovir Shrinks Uterine Leiomyoma in the Eker Rat ModelHassan M.a, d · Zhang D.a, c · Salama S.a, d · Hamada F.d · Arafa H.d · Fouad H.a · Walker C.b · Al-Hendy A.a, caDepartment of Obstetrics and Gynecology, University of Texas Medical Branch, Galveston, Tex., bM.D. Anderson Cancer Center, University of Texas, Smithville, Tex., and cDepartment of Obstetrics and Gynecology, Meharry Medical College, Nashville, Tenn., USA; dDepartment of Pharmacology and Toxicology, Faculty of Pharmacy, Al-Azhar University, Cairo, Egypt
Prof. Ayman Al-Hendy, MD, PhD 1005 Dr. D.B. Todd Jr. Blvd., George Hubbard Hospital 5th Floor, Room 5131C Nashville, TN 37208 (USA) Tel. +1 615 963 3148, Fax +1 615 963 3125, E-Mail ahendy@MMC.edu Keywords: LeiomyomaGene therapyHSV1TK/GCVEker rat |
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Abstract
Background/Aims: The objective of this study was to assess in vivo gene therapy of uterine leiomyomas in the Eker rat model using adenovirus (Ad)-mediated delivery of herpes simplex virus 1 thymidine kinase gene (HSV1TK) followed by ganciclovir (GCV) treatment. Methods: We randomized 27 female Eker rats with MRI-confirmed uterine leiomyomas to a single treatment with direct intra-tumor injection of Ad-HSV1TK/GCV, Ad-LacZ/GCV, or medium alone. Samples were collected from tumors, other body organs, and blood at 10, 20, and 30 days after treatment to assess the safety and efficacy of the treatment. Results: Ad-HSV1TK/GCV treatment significantly decreased uterine fibroid volume by 75 ± 16, 58.7 ± 6.3, and 67.5 ± 27.5%, of the pretreatment volume at days 10, 20, and 30, respectively. Ad-HSV1TK/GCV increased caspase-3 activity, Bax expression, and TUNEL apoptosis marker, and it decreased cyclin D1, PCNA, Bcl2, and PARP protein expressions. Ad transfection induced local CD4+ and CD8+ infiltration and serum anti-Ad antibodies. Additionally, Ad transfection was tumor-localized and safe to non-target tissues. Conclusion: These studies demonstrate a marked efficiency and high safety for the Ad-HSV1TK/GCV therapeutic approach in the context of Eker rat uterine leiomyomas and provide essential preclinical data for the development of Ad-HSV1TK/GCV gene therapy for uterine fibroids.
© 2009 S. Karger AG, Basel
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Article / Publication Details
Received: December 28, 2007
Accepted: November 27, 2008
Published online: March 27, 2009
Issue release date: July 2009
Number of Print Pages: 14
Number of Figures: 7
Number of Tables: 1
ISSN: 0378-7346 (Print)
eISSN: 1423-002X (Online)
For additional information: https://www.karger.com/GOI
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