GGT activity was positivelycorrelated with GSH levels in the total patients and healthy controls (p
📌 3 Maddede Bu Makale
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Amaç & Hipotez:Objective: The gamma-glutamyl cycle catalyzed by gamma-glutamyl transferase (GGT) plays an important role in glutathione (GSH) homeostasis inthe cell.
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Temel Bulgular & Veri:In this study,we aimed to investigate the relationship between GGT and GSH in molecular subgroups of breast cancer patients.Materials and Methods: Serum GGT activity and GSH levels for patients diagnosed with breast cancer (n=58) and healthy controls (n=8) weremeasured by a spectrophotometric method and a colorimetric kit, respectively.Results: GGT activity was significantly higher in the total patient group and in the molecular subgroups than those in the control groups (p0.05).
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Sonuç & Katkı:GGT activity was positivelycorrelated with GSH levels in the total patients and healthy controls (p
🔬Tür:Araştırma Makalesi
📍Kapsam:Genişletilmiş Akademik Örneklem
⚙️Değişkenler:Alan Parametreleri
Abstract
Objective: The gamma-glutamyl cycle catalyzed by gamma-glutamyl transferase (GGT) plays an important role in glutathione (GSH) homeostasis inthe cell. In cells continuously exposed to the drug, the main phase of the enzymatic detoxification is the conjugation of the drug with GSH catalyzed byglutathione-S-transferase (GST). Conjugation of drugs with GSH is the first step in the development of chemotherapeutic drug resistance. In this study,we aimed to investigate the relationship between GGT and GSH in molecular subgroups of breast cancer patients.Materials and Methods: Serum GGT activity and GSH levels for patients diagnosed with breast cancer (n=58) and healthy controls (n=8) weremeasured by a spectrophotometric method and a colorimetric kit, respectively.Results: GGT activity was significantly higher in the total patient group and in the molecular subgroups than those in the control groups (p0.05). GGT activity was positivelycorrelated with GSH levels in the total patients and healthy controls (p
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Bu Makaleye Atıf Yap
SALİHOĞLU, E. M., AKAYDIN, S. Y., GÜNGÖR, D. G., KARANLIK, H., DEMOKAN, S. (2022). Correlation Between Gamma-Glutamyl Transferase Activity and Glutathione Levels in Molecular Subgroups of Breast Cancer. European Journal of Breast Health, Cilt: 16 - Sayı: 1, 72–76. https://ajindex.com/articles/510764
Fornaciari I, Fierabracci V, Corti A, Aziz Elawadi H, Lorenzini E, Emdin M, Paolicchi A, Franzini M. Gamma-Glutamyltransferase Fractions in Human Plasma and Bile: Characteristic and Biogenesis. PLoS One 2014; 9: e88532. (PMID: 24533101
Heisterkamp N, Groffen J, Warburton D, Sneddon TP. The human gamma-glutamyltransferase gene family. Hum Genet 2008; 123: 321-332. (PMID: 18357469
Owen AD, Schapira AH, Jenner P, Marsden CD. Oxidative stress and Parkinson’s disease. Ann N Y Acad Sci 1996; 786: 217-223. (PMID: 8687021
Kadoğlu D, Akçay T. Glutation Metabolism and Clinical Importance. Turkiye Klinikleri Journal of Medical Sciences 1995; 15: 214-218
Ribas V, García-Ruiz C, Fernández-Checa JC. Glutathione and mitochondria. Front Pharmacol 2014; 5: 151. (PMID: 25024695
Lu SC. Regulation of glutathione synthesis. Mol Aspects Med 2009; 30: 42-59. (PMID: 18601945
Wang Y, Li J, Matye D, Zhang Y, Dennis K, Ding WX, Li T. Bile acids regulate cysteine catabolism and glutathione regeneration to modulate hepatic sensitivity to oxidative injury. JCI Insight 2018; 3: 99676. (PMID: 29669937
Ball EG, Cooper O, Revel JP. The quantitative measurement of gamma glutamyl transpeptidase activity. J Biol Chem 1956; 221: 895-908. (PMID: 13357485
Estrela JM, Ortega A, Obrador E. Glutathione in cancer biology and therapy. Crit Rev Clin Lab Sci 2006; 43: 143-181. (PMID: 16517421
Hanigan MH. Gamma-Glutamyl transpeptidase, a glutathionase: its expression and function in carcinogenesis. Chem Biol Interact 1998; 111-112: 333-42. (PMID: 9679564
Banneau G, Guedj M, MacGrogan G, de Mascarel I, Velasco V, Schiappa R, Bonadona V, David A, Dugast C, Gilbert-Dussardier B, Ingster O, Vabres P, Caux F, de Reynies A, Iggo R, Sevenet N, Bonnet F, Longy M. Molecular apocrine differentiation is a common feature of breast cancer in patients with germline PTEN mutations. Breast Cancer Res 2010; 12: R63. (PMID: 20712882
Longley DB, Johnston PG. Molecular mechanisms of drug resistance. J Pathol 2005; 205: 275-292. (PMID: 15641020
Ramsay EE, Dilda PJ. Glutathione S-conjugates as prodrugs to target drug-resistant tumors. Front Pharmacol 2014; 5: 181. (PMID: 25157234