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Yu J, Wei X, Gao J, Wang C, Wei W. Role of cyclosporin A in the treatment of kidney disease and nephrotoxicity. Toxicology 2023; 492:153544. [PMID: 37164250 DOI: 10.1016/j.tox.2023.153544] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Revised: 05/06/2023] [Accepted: 05/08/2023] [Indexed: 05/12/2023]
Abstract
The clinical use of cyclosporin A (CsA) has led to significant advances and achievements in the field of transplantation and immune diseases. However, the nephrotoxicity of CsA is a major concern in current immunosuppression regimens. CsA causes abnormal kidney function while treating kidney disease, causing problems for clinicians and patients. Evidence of CsA nephrotoxicity is almost always present in transplant recipients after long-term CsA administration (up to 10 years), and similar phenomena occur with other calcineurin inhibitors. In this review, we summarize the mechanisms and influencing factors of CsA for the treatment of primary nephrotic syndrome. The mechanisms of CsA nephrotoxicity, clinical-pathological features, diagnosis, prevention strategies, and risk factors are summarized. We discuss the correlates and mechanisms of the switch between kidney disease prevention and nephrotoxicity of CsA to better understand the function of CsA in the kidney and to provide a basis for the prevention and treatment of CsA nephrotoxicity.
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Affiliation(s)
- Jun Yu
- Institute of Clinical Pharmacology, Anhui Medical University, Hefei, China; Key Laboratory of Anti-Inflammatory and Immune Mdicine, Ministry of Education, Hefei, China; Anhui Collaborative Innovation Centre of Anti-Inflammatory and Immune Medicine, Hefei, China; Center of Rheumatoid Arthritis of Anhui Medical University, Hefei, China
| | - Xiao Wei
- Department of Nephrology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, 230022, China; Blood Purification Center, First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230022, China
| | - Jinzhang Gao
- Institute of Clinical Pharmacology, Anhui Medical University, Hefei, China; Key Laboratory of Anti-Inflammatory and Immune Mdicine, Ministry of Education, Hefei, China; Anhui Collaborative Innovation Centre of Anti-Inflammatory and Immune Medicine, Hefei, China; Center of Rheumatoid Arthritis of Anhui Medical University, Hefei, China
| | - Chun Wang
- Institute of Clinical Pharmacology, Anhui Medical University, Hefei, China; Key Laboratory of Anti-Inflammatory and Immune Mdicine, Ministry of Education, Hefei, China; Anhui Collaborative Innovation Centre of Anti-Inflammatory and Immune Medicine, Hefei, China; Center of Rheumatoid Arthritis of Anhui Medical University, Hefei, China.
| | - Wei Wei
- Institute of Clinical Pharmacology, Anhui Medical University, Hefei, China; Key Laboratory of Anti-Inflammatory and Immune Mdicine, Ministry of Education, Hefei, China; Anhui Collaborative Innovation Centre of Anti-Inflammatory and Immune Medicine, Hefei, China; Center of Rheumatoid Arthritis of Anhui Medical University, Hefei, China.
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Deprez S, Stove CP. Dried blood microsampling-assisted therapeutic drug monitoring of immunosuppressants: An overview. J Chromatogr A 2023; 1689:463724. [PMID: 36592482 DOI: 10.1016/j.chroma.2022.463724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2022] [Revised: 12/12/2022] [Accepted: 12/14/2022] [Indexed: 12/23/2022]
Abstract
In the field of solid organ transplantation, chemotherapy and autoimmune disorders, treatment with immunosuppressant drugs requires intensive follow-up of the blood concentrations via therapeutic drug monitoring (TDM) because of their narrow therapeutic window and high intra- and inter-subject variability. This requires frequent hospital visits and venepunctures to allow the determination of these analytes, putting a high burden on the patients. In the context of patient-centric thinking, it is becoming increasingly established that at least part of these conventional blood draws could be replaced by microsampling, allowing home-sampling and increasing the quality of life for these patients. In this review we discuss the published methods - mostly using liquid chromatography coupled to tandem mass spectrometry - that have utilized (volumetric) dried blood samples as an alternative for conventional liquid whole blood for the TDM of immunosuppressant drugs. Furthermore, some pre-analytical considerations using DBS or volumetric alternatives are considered, as well as the applicability on clinical samples. The implementation status in clinical practice is also discussed, including (1) the cost-effectiveness of this approach compared to venepuncture, (2) the availability of multiplexed methods, (3) the status of harmonization and (4) patient perception. A brief perspective on potential future developments for the dried blood-based TDM of immunosuppressant drugs is provided, by considering how obstacles for the implementation of these strategies into clinical practice might be overcome.
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Affiliation(s)
- Sigrid Deprez
- Laboratory of Toxicology, Department of Bioanalysis, Faculty of Pharmaceutical Sciences, Ghent University, Ottergemsesteenweg 460, 9000 Ghent, Belgium
| | - Christophe P Stove
- Laboratory of Toxicology, Department of Bioanalysis, Faculty of Pharmaceutical Sciences, Ghent University, Ottergemsesteenweg 460, 9000 Ghent, Belgium.
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Alternative matrices for therapeutic drug monitoring of immunosuppressive agents using LC-MS/MS. Bioanalysis 2016; 7:1037-58. [PMID: 25966013 DOI: 10.4155/bio.15.35] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Immunosuppressive drugs used in solid organ transplants typically have narrow therapeutic windows and high intra- and intersubject variability. To ensure satisfactory exposure, therapeutic drug monitoring (TDM) plays a pivotal role in any successful posttransplant maintenance therapy. Currently, recommendations for optimum immunosuppressant concentrations are based on blood/plasma measurements. However, they introduce many disadvantages, including poor prediction of allograft survival and toxicity, a weak correlation with drug concentrations at the site of action and the invasive nature of the sample collection. Thus, alternative matrices have been investigated. This paper reviews tandem-mass spectrometry (LC-MS/MS) methods used for the quantification of immunosuppressant drugs utilizing nonconventional matrices, namely oral fluids, fingerprick blood and intracellular and intratissue sampling. The advantages, disadvantages and clinical application of such alternative mediums are discussed. Additionally, sample extraction techniques and basic chromatography information regarding these methods are presented in tabulated form.
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Abstract
Nonneoplastic mucocutaneous lesions are frequent in organ transplant recipients. Many of them are caused by a direct toxicity of immunosuppressive drugs, in particular glucocorticoids and cyclosporine. The effects of these agents are dose- and time-dependent. Glucocorticoids can cause acne, Cushingoid appearance, irregular purpuric areas, friable skin, and wide and violaceous stripes. Cyclosporine can cause hypertrichosis, pilosebaceous lesions, and gum hypertrophy. Patients with esthetic changes may show poor adherence to treatment with these immunosuppressive agents that may lead to progressive graft dysfunction. Apart from this direct toxicity, vigorous immunosuppression may render the transplant recipients more susceptible to mucocutaneous infections. Fungal infection, viral warts, and bacterial folliculitis are the most frequent types of mucocutaneous infection. Some fungal infections, such as oral candidiasis and pityriasis versicolor, are relatively trivial, but other mycotic infections can cause severe or disfigurating lesions. Among viral infections, warts and condylomata caused by human papilloma virus are frequent and may favor the development of nonmelanoma skin cancer. Bacterial infections are usually trivial in the early period after transplantation, being represented almost exclusively by folliculitis. However, subcutaneous infections may cause a necrotizing fasciculitis which is a life-threatening disorder, usually sustained by polymicrobial pathogens.
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Affiliation(s)
- Claudio Ponticelli
- Division of Nephrology, Istituto Scientifico Humanitas, Rozzano, Milan, Italy.
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Keevil BG, Fildes J, Baynes A, Yonan N. Liquid chromatography-mass spectrometry measurement of tacrolimus in finger-prick samples compared with venous whole blood samples. Ann Clin Biochem 2009; 46:144-5. [DOI: 10.1258/acb.2008.008147] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Background Finger-prick sampling is an alternative strategy for monitoring immunosuppressive drug concentrations that could be useful in reducing outpatient visits. We investigated the correlation between venous and finger-prick samples in a group of adult thoracic transplant patients. Methods Blood samples ( n = 65) for the measurement of whole blood tacrolimus were collected from adult heart ( n = 18) and lung transplant ( n = 20) recipients receiving tacrolimus-based immunosuppressive therapy and a finger-prick sample was taken at the same time. Results Between-batch assay imprecision (coefficient of variation [CV], %) for the last 12 months ( n = 270) at concentrations of 3.5, 6.9 and 13.9 μg/L was 8.0%, 5.4% and 5.2%, respectively. Passing and Bablok regression analysis between finger-prick and venous blood showed finger-prick tacrolimus = 1.02 (venous blood tacrolimus) −0.06. Bland–Altman analysis showed good agreement with a bias of 0.114 μg/L and 95% limits of agreement from −1.0 to 1.2 μg/L. Conclusions The liquid chromatography mass spectrometry methodology that we have developed has the potential to allow patients or their carers to collect finger-prick blood samples at home and send them to the laboratory using the routine mail service. We believe that finger-prick blood sampling has an important role to play in the care of transplant patients receiving immunosuppressive drugs, including tacrolimus.
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Affiliation(s)
| | - James Fildes
- Transplant Unit, Wythenshawe Hospital, Manchester, M23 9LT, UK
| | - Anna Baynes
- Transplant Unit, Wythenshawe Hospital, Manchester, M23 9LT, UK
| | - Nizar Yonan
- Transplant Unit, Wythenshawe Hospital, Manchester, M23 9LT, UK
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