The Expanding Role of Folates and Fluoropyrimidines in Cancer Chemotherapy
- ISBN-10
- 1468456091
- ISBN-13
- 9781468456097
- Category
- Medical
- Pages
- 336
- Language
- English
- Published
- 2012-04-29
- Publisher
- Springer
- Author
- Y. Rustum
Description
Although 5-fluorouracil (Fura) is the drug of choice for the treat ment of patients with advanced colorectal cancer, this agent has limited effectiveness with a reported response rate of 10-20% and a duration of response of only 6-9 months. The large percentage of treatment failures with this agent has spurred a continuing effort to delineate the mechanism(s) of resistance to Fura and to evaluate approaches that would selectively modulate the therapeutic efficacy of this agent. The therapeutic efficacy of FUra has been attributed to its selec tive incorporation into RNA and to its inhibition of thymidylate syn thase, leading to potent inhibition of DNA synthesis. Studies of cell lines in vitro and model systems in vivo have demonstrated that although mechanism~sensitivity and resistanc; to Fura are multifactorial, in the presence of citrovorum factor (CF, 5-formyltetrahydrofolate) the site of action of Fura becomes predominantly the pronounced and pro longed inhibition of thymidylate synthase. This action is the result of stabilization of the covalent ternary complex between FdUMP, an active metabolite of FUra, 5,10-methylenetetrahydrofolates, and thymidylate synthase. This effect of CF is thus an example of the concept of meta bolic modulation.
Get the book
Similar books
-
How Institutions are Shaping the Future of Our Children: For Better or for Worse?
By Catherine Dulmus, Karen SowersLammert, M., & Timberlake, E. M. (1986). Termination of foster care for the older adolescent: Issues of emancipation and individuation.
-
Reversibility of Chronic Disease and Hypersensitivity, Volume 5: Treatment Options of Chemical Sensitivity
By William J. Rea, Kalpana D. PatelDou, L., E. Bertrand, C. Cerini, V. Faure, J. Sampol, R. Vanholder, Y. Berland, P. Brunet. ... A. Timberlake, B. Sumpio, R. Pfragner, I. M. Modlin, M. Kidd.
-
Rockwood and Green's Fractures in Adults
By William Ricci, Charles M. Court-Brown, Margaret M. McQueenChendrasekhar A, Moorman DW, Timberlake GA. An evaluation of the effects of ... Chittiboina P, Wylen E, Ogden A, et al. Traumatic spondylolisthesis of the ...
-
Breast Pathology, An Issue of Surgical Pathology Clinics
By Laura C. CollinsHartmann LC, Radisky DC, Frost MH, et al. Understanding the premalignant potential of ... D'Alfonso TM, Wang K, Chiu YL, et al. Pathologic upgrade rates on ...
-
Telepractice in Speech-Language Pathology
By K. Todd HoustonStensland, J., Speedie, S., Ideker, M., House, J., & Thompson, T. (1999). The relative cost of outpatient ... Deal, J. L. (1987). Appraisal and diagnosis of ...
-
Addressing Adversity: Prioritising adversity and trauma-informed care for children and young people in England.
By Marc Bush, Lord Victor Adebowale, Rebecca Adlington1 2 Howard, S. and Johnson, B. (2000) Resilient and Non-resilient Behaviour in ... 4 De Haan, L., Hawley, D. and Deal, J. (2002) 'Operationalizing family ...
-
Culture, Brain, and Analgesia: Understanding and Managing Pain in Diverse Populations
By Mario Incayawar, Knox H. Todd... are not fluent in the language/s of the medical care provider.72 Research ... Anglo-Americans have traditionally placed a great deal of emphasis on the ...
-
Image-Guided Spine Interventions
By John M. MathisThis practical guide thoroughly discusses both well-established and new interventions that are applied to the spine for the purpose of pain relief.
-
New Mynursinglab -- Access Card -- For Maternal-Child Nursing (24-Month Access)
By Pearson Education, Pearson Education, Inc., David P Pearson EducationSeveral versions of Pearson's MyLab & Mastering products exist for each title, including customized versions for individual schools, and registrations are not transferable.
-
Pearson's Medical Assisting (General)
By Pearson Education Staff, Madan Dr Pearson EducationIf a picture paints a thousand words, imagine what video can do? Pearson Medical Assisting Videos help users learn the nuances and the details of many medical assisting procedures.