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Hałubiec P, Jaworek AK, Wojas-Pelc A. Clinical aspects of the treatment of atopic dermatitis with topical glucocorticoids and calcineurin inhibitors - a pilot questionnaire study. Folia Med Cracov 2023; 63:97-108. [PMID: 37406280 DOI: 10.24425/fmc.2023.145433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 07/07/2023]
Abstract
Atopic dermatitis (AD) is the most common inflammatory skin disease. However, recent reports concerning the simple clinical aspects of treatment with topical glucocorticosteroids (TCS) and calcineurin inhibitors (TCI) are lacking. The objective of this study is providing an update on these characteristics of AD management. A group of 150 adults suffering from AD treated with TCS during last year was asked to fill an anonymous questionnaire. The course of topical treatment was analyzed in the context of the severity of symptoms and the knowledge of the patients about therapy. During the last year, the majority of patients (66%) were treated with class IV TCS; however, in the last two weeks, class I TCS was used the most frequently (35%). Only 11% were familiar with the concept of intermittent therapy and 4% used the fingertip unit (FTU). In total, 77% of them used TCI. Most of the patients used the same class of TCS permanently. Unfortunately, patients are unaware of simple approaches (like intermittent therapy or FTU) that increase both the effectiveness and safety of the treatment. Practicians should be aware of these problems to identify and eliminate them, primarily through the education of patients.
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Affiliation(s)
| | | | - Anna Wojas-Pelc
- Department of Dermatology, Jagiellonian University Medical College, Kraków, Poland
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2
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Bi X, Xie S, Wu S, Cao W, Lin Y, Yang L, Jiang T, Deng W, Wang S, Liu R, Gao Y, Shen G, Chang M, Hao H, Xu M, Chen X, Hu L, Lu Y, Zhang L, Xie Y, Li M. Changes of natural killer cells' phenotype in patients with chronic hepatitis B in intermittent interferon therapy. Front Immunol 2023; 14:1116689. [PMID: 36793722 PMCID: PMC9922744 DOI: 10.3389/fimmu.2023.1116689] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Accepted: 01/09/2023] [Indexed: 01/31/2023] Open
Abstract
Background To investigate the changes of natural killer (NK) cell phenotype in the interferon alpha (IFN-α) treatment of chronic hepatitis B (CHB) and its relationship with clinical indicators. Methods The CHB patients who did not receive any antiviral treatment were set as initial treatment group and used pegylated interferon alpha (PEG-IFN α). Peripheral blood samples were collected at baseline, 4 weeks, and 12-24 weeks. For IFN-treated patients who entered the plateau were set as plateau group, and PEG-IFN α was discontinued and resumed after an interval of 12-24 weeks. Besides, we also enrolled some patients who had received oral drug for more than 6 months as oral drug group without follow up. Peripheral blood was collected during the plateau period, which was set as baseline, and after 12-24 weeks of intermittent treatment, and after 12-24 weeks of additional treatment with PEG-IFN α. The aim of the collection was to detect hepatitis B virus (HBV) virology, serology and biochemical indicators, and the NK cell related phenotype was detected by flow cytometry. Results In the plateau group, subgroup of CD69+CD56dim was higher with statistical significance when comparing with the initial treatment group and oral drug group [10.49 (5.27, 19.07) vs 5.03 (3.67, 8.58), Z = -3.11, P = 0.002; 10.49 (5.27, 19.07) vs 4.04 (1.90, 7.26), Z = -5.30, P < 0.001)]. CD57+CD56dim was significantly lower than that in initial treatment group and oral drug group respectively [68.42±10.37 vs 55.85±12.87, t = 5.84, P < 0.001; 76.38±9.49 vs 55.85±12.87, t = -9.65, P < 0.001]. The CD56brightCD16- subgroup in the plateau group was higher with statistical significance compared with initial treatment group and oral drug group respectively [11.64 (6.05, 19.61) vs 3.58 (1.94, 5.60), Z = -6.35, P < 0.001; 11.64 (6.05, 19.61) vs 2.37 (1.70, 4.30), Z = -7.74, P < 0.001)]. CD57+CD56dim in the plateau group had a significant higher percentage than that at baseline after IFN discontinuation for 12-24 weeks (55.85±12.87 vs 65.95±12.94, t = -2.78, P = 0.011). Conclusion During the long-term treatment of IFN, the killer subgroup of NK cells is continuously depleted, leading to the differentiation of the regulatory subgroup into the killer subgroup. In the killing subgroup, although the number is continuously depleted, the activity of the subgroup is continuously increased. In the plateau phase, after stopping IFN for a period of time, the number of NK cell subsets would gradually recover, but was still lower than that in the initial treatment group.
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Affiliation(s)
- Xiaoyue Bi
- Department of Hepatology Division 2, Beijing Ditan Hospital, Capital Medical University, Beijing, China
| | - Si Xie
- Division of Hepatology, Hepato-Pancreato-Biliary Center, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, Beijing, China
| | - Shuling Wu
- Department of Hepatology Division 2, Beijing Ditan Hospital, Capital Medical University, Beijing, China
| | - Weihua Cao
- Department of Hepatology Division 2, Beijing Ditan Hospital, Capital Medical University, Beijing, China,Department of Infectious Diseases, Miyun Teaching Hospital, Capital Medical University, Beijing, China
| | - Yanjie Lin
- Department of Hepatology Division 2, Peking University Ditan Teaching Hospital, Beijing, China
| | - Liu Yang
- Department of Hepatology Division 2, Beijing Ditan Hospital, Capital Medical University, Beijing, China
| | - Tingting Jiang
- Department of Hepatology Division 2, Beijing Ditan Hospital, Capital Medical University, Beijing, China
| | - Wen Deng
- Department of Hepatology Division 2, Beijing Ditan Hospital, Capital Medical University, Beijing, China
| | - Shiyu Wang
- Department of Hepatology Division 2, Beijing Ditan Hospital, Capital Medical University, Beijing, China
| | - Ruyu Liu
- Department of Hepatology Division 2, Beijing Ditan Hospital, Capital Medical University, Beijing, China
| | - Yuanjiao Gao
- Department of Hepatology Division 2, Beijing Ditan Hospital, Capital Medical University, Beijing, China
| | - Ge Shen
- Department of Hepatology Division 2, Beijing Ditan Hospital, Capital Medical University, Beijing, China
| | - Min Chang
- Department of Hepatology Division 2, Beijing Ditan Hospital, Capital Medical University, Beijing, China
| | - Hongxiao Hao
- Department of Hepatology Division 2, Beijing Ditan Hospital, Capital Medical University, Beijing, China
| | - Mengjiao Xu
- Department of Hepatology Division 2, Beijing Ditan Hospital, Capital Medical University, Beijing, China
| | - Xiaoxue Chen
- Department of Hepatology Division 2, Beijing Ditan Hospital, Capital Medical University, Beijing, China
| | - Leiping Hu
- Department of Hepatology Division 2, Beijing Ditan Hospital, Capital Medical University, Beijing, China
| | - Yao Lu
- Department of Hepatology Division 2, Beijing Ditan Hospital, Capital Medical University, Beijing, China
| | - Lu Zhang
- Department of Hepatology Division 2, Beijing Ditan Hospital, Capital Medical University, Beijing, China
| | - Yao Xie
- Department of Hepatology Division 2, Beijing Ditan Hospital, Capital Medical University, Beijing, China,Department of Hepatology Division 2, Peking University Ditan Teaching Hospital, Beijing, China
| | - Minghui Li
- Department of Hepatology Division 2, Beijing Ditan Hospital, Capital Medical University, Beijing, China,Department of Hepatology Division 2, Peking University Ditan Teaching Hospital, Beijing, China,*Correspondence: Minghui Li,
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3
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Lin Y, Shen G, Xie S, Bi X, Lu H, Yang L, Jiang T, Deng W, Wang S, Zhang L, Lu Y, Gao Y, Hao H, Wu S, Liu R, Chang M, Xu M, Hu L, Chen X, Huang R, Li M, Xie Y. Dynamic changes of the proportion of HLA-DR and CD38 coexpression subsets on T lymphocytes during IFN-based chronic hepatitis B treatment. Front Immunol 2023; 13:1116160. [PMID: 36761161 PMCID: PMC9902929 DOI: 10.3389/fimmu.2022.1116160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Accepted: 12/21/2022] [Indexed: 01/26/2023] Open
Abstract
Background To investigate the changes of human leukocyte antigen DR (HLA-DR) and CD38 coexpression subsets on T lymphocytes following interferon (IFN) therapy for those who have chronic hepatitis B (CHB). Methods A prospective cohort of CHB patients participated in this study. CHB patients without IFN treatment (including naïve and nucleoside [nucleotide] analogs [NAs]-treated patients) were given pegylated interferon alfa (Peg-IFNα) treatment. Peripheral blood samples were taken at baseline, 4 weeks and 12-24 weeks of Peg-IFNα treatment. For the patients who entered the Peg-IFNα plateau phase due to the stagnation of the decrease in HBsAg, and Peg-IFNα was discontinued and Peg-IFNα therapy was resumed after an interval of 12-24 weeks. During the interval, they received first-line NAs treatment. Peripheral blood samples were collected at the baseline of the plateau phase, 12-24 weeks of intermittent treatment, and 12-24 weeks of Peg-IFNα retreatment. The peripheral blood samples were taken to determine virological, serological and biochemical indices of hepatitis B virus (HBV), and T lymphocyte related phenotypes were detected using flow cytometry. Results In the process of long-term treatment of Peg-IFNα, the percentage of HLA-DR+CD38dim subsets increased significantly at first, then decreased gradually, while the percentage of HLA-DR+CD38hi subsets markedly increased. During long-term Peg-IFNα treatment, there was a considerable negative correlation between HBsAg and the HLA-DR+CD38hi subset percentage. The persistent high proportion of HLA-DR+CD38hi subsets was related to the occurrence of Peg-IFNα plateau phase. After Peg-IFNα intermittent treatment, the percentage of HLA-DR+CD38hi subsets decreased significantly. After Peg-IFNα retreatment, the level of HBsAg began to decrease again. At the same time, the percentage of HLA-DR+CD38hi subsets significantly increased, but it was still lower than that at the baseline level. Conclusions The spectrum of HLA-DR and CD38 coexpression subsets on T lymphocytes changed during the long-term treatment of IFN. The establishment of the IFN plateau phase was linked to the persistence of a considerable proportion of HLA-DR+CD38hi subsets on T lymphocytes. IFN intermittent treatment could significantly reduce the proportion of HLA-DR+CD38hi subsets, helping regain the antiviral efficacy of IFN during IFN retreatment.
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Affiliation(s)
- Yanjie Lin
- Department of Hepatology Division 2, Peking University Ditan Teaching Hospital, Beijing, China
| | - Ge Shen
- Department of Hepatology Division 2, Beijing Ditan Hospital, Capital Medical University, Beijing, China
| | - Si Xie
- Division of Hepatology, Hepato-Pancreato-Biliary Center, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, Beijing, China
| | - Xiaoyue Bi
- Department of Hepatology Division 2, Beijing Ditan Hospital, Capital Medical University, Beijing, China
| | - Huihui Lu
- Department of Obstetrics and Gynecology, Wuhan Children’s Hospital (Wuhan Maternal and Child Healthcare Hospital), Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Liu Yang
- Department of Hepatology Division 2, Beijing Ditan Hospital, Capital Medical University, Beijing, China
| | - Tingting Jiang
- Department of Hepatology Division 2, Beijing Ditan Hospital, Capital Medical University, Beijing, China
| | - Wen Deng
- Department of Hepatology Division 2, Beijing Ditan Hospital, Capital Medical University, Beijing, China
| | - Shiyu Wang
- Department of Hepatology Division 2, Beijing Ditan Hospital, Capital Medical University, Beijing, China
| | - Lu Zhang
- Department of Hepatology Division 2, Beijing Ditan Hospital, Capital Medical University, Beijing, China
| | - Yao Lu
- Department of Hepatology Division 2, Beijing Ditan Hospital, Capital Medical University, Beijing, China
| | - Yuanjiao Gao
- Department of Hepatology Division 2, Beijing Ditan Hospital, Capital Medical University, Beijing, China
| | - Hongxiao Hao
- Department of Hepatology Division 2, Beijing Ditan Hospital, Capital Medical University, Beijing, China
| | - Shuling Wu
- Department of Hepatology Division 2, Beijing Ditan Hospital, Capital Medical University, Beijing, China
| | - Ruyu Liu
- Department of Hepatology Division 2, Beijing Ditan Hospital, Capital Medical University, Beijing, China
| | - Min Chang
- Department of Hepatology Division 2, Beijing Ditan Hospital, Capital Medical University, Beijing, China
| | - Mengjiao Xu
- Department of Hepatology Division 2, Beijing Ditan Hospital, Capital Medical University, Beijing, China
| | - Leiping Hu
- Department of Hepatology Division 2, Beijing Ditan Hospital, Capital Medical University, Beijing, China
| | - Xiaoxue Chen
- Department of Hepatology Division 2, Beijing Ditan Hospital, Capital Medical University, Beijing, China
| | - Ronghai Huang
- Department of General Surgery, Beijing Ditan Hospital, Capital Medical University, Beijing, China,*Correspondence: Ronghai Huang, ; Minghui Li, ; Yao Xie,
| | - Minghui Li
- Department of Hepatology Division 2, Peking University Ditan Teaching Hospital, Beijing, China,Department of Hepatology Division 2, Beijing Ditan Hospital, Capital Medical University, Beijing, China,*Correspondence: Ronghai Huang, ; Minghui Li, ; Yao Xie,
| | - Yao Xie
- Department of Hepatology Division 2, Peking University Ditan Teaching Hospital, Beijing, China,Department of Hepatology Division 2, Beijing Ditan Hospital, Capital Medical University, Beijing, China,*Correspondence: Ronghai Huang, ; Minghui Li, ; Yao Xie,
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4
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Rodriguez-Martinez CE, Sossa-Briceño MP, Garcia-Marcos L. Use of inhaled corticosteroids on an intermittent or as-needed basis in pediatric asthma: a systematic review of the literature. J Asthma 2022; 59:2189-2200. [PMID: 34806537 DOI: 10.1080/02770903.2021.2008430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Revised: 10/16/2021] [Accepted: 11/16/2021] [Indexed: 10/19/2022]
Abstract
OBJECTIVE To summarize the principal findings of all available studies that have evaluated the use of inhaled corticosteroids (ICS) on an intermittent or as-needed basis as an add-on therapy to short-acting β2-agonists (SABAs) or fast-acting β2-agonists (FABAs) in pediatric asthmatic patients. Studies could either include or omit the use of ICS during stable periods of the disease. DATA SOURCES Electronic databases MEDLINE, EMBASE, CINAHL, SCOPUS, and the Cochrane Database of Systematic Reviews from inception to February 2021. STUDY SELECTIONS Relevant articles in the literature published by February 2021. RESULTS Of 294 references identified, 14 studies were included. The use of ICS on an intermittent or as-needed basis (as an add-on therapy to SABAs) has been shown to be more effective than treatment with SABA alone and to be similarly or less effective compared to regular daily ICS administration. Furthermore, strategies involving increasing the dose of ICS only when needed (as an add-on therapy to formoterol, a FABA) and keeping it low during stable stages of the disease (i.e. single maintenance and reliever therapy, SMART) have been shown to be similarly or more effective than comparators. CONCLUSION The use of ICS on an intermittent or as-needed basis as an add-on therapy to SABAs or FABAs, with or without ICS use during stable periods of the disease in pediatric asthmatic patients, encompasses several effective treatment strategies.
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Affiliation(s)
- Carlos E Rodriguez-Martinez
- Department of Pediatrics, School of Medicine, Universidad Nacional de Colombia, Bogota, Colombia
- Department of Pediatric Pulmonology, School of Medicine, Universidad El Bosque, Bogota, Colombia
| | - Monica P Sossa-Briceño
- Department of Internal Medicine, School of Medicine, Universidad Nacional de Colombia, Bogota, Colombia
| | - Luis Garcia-Marcos
- Pediatric Allergy and Pulmonology Units, "Virgen de la Arrixaca" University Children's Hospital, University of Murcia and IMIB Bioresearch Institute, ARADyAL Allergy Network Spain, Murcia, Spain
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5
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Lin YJ, Sun FF, Zeng Z, Bi XY, Yang L, Li MH, Xie Y. Combination and Intermittent Therapy Based on Pegylated Interferon Alfa-2a for Chronic Hepatitis B with Nucleoside (Nucleotide) Analog-Experienced Resulting in Hepatitis B Surface Antigen Clearance: A Case Report. Viral Immunol 2021; 35:71-75. [PMID: 34714178 DOI: 10.1089/vim.2021.0112] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
Interferon (IFN) and nucleoside (nucleotide) analogs (NAs) are two effective antiviral drugs for chronic hepatitis B (CHB). More and more evidence shows that the combination of the two drugs can better inhibit viral replication and even achieve clinical cure. IFN intermittent therapy is also considered to be an important measure to resolve IFN fatigue when hepatitis B surface antigen (HBsAg) decline appears stagnated during IFN-based antiviral therapy. A 36-year-old male NA-experienced patient with hepatitis B e antigen (HBeAg)-positive CHB was admitted to our hospital. After a poor response to tenofovir disoproxil fumarate (TDF) monotherapy for 1 year, the patient was treated with pegylated interferon alfa-2a combination therapy and finally achieved HBsAg clearance. During the treatment and follow-up, HBsAg, HBeAg, hepatitis B virus (HBV) DNA, and serum alanine aminotransferase, etc. were monitored every 3 months. Between weeks 58 and 71 of combination therapy, IFN was discontinued because of a slow decline in HBsAg, and TDF alone was used for maintenance therapy. Complete virological response, HBeAg and HBsAg seroconversion were observed at weeks 44, 96, and 122, respectively. After 24 weeks of consolidation therapy, HBsAg, HBeAg, and HBV DNA were consistently negative, and hepatitis B surface antibody was 729.30 mIU/mL at week 146 of the combination therapy, then we stopped drugs. Following up after 28 weeks of cessation therapy, the patient still remained clinically cured.
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Affiliation(s)
- Yan-Jie Lin
- Department of Hepatology Division 2, Peking University Ditan Teaching Hospital, Beijing, China
| | - Fang-Fang Sun
- Department of Hepatology Division 2, Beijing Ditan Hospital, Capital Medical University, Beijing, China
| | - Zhan Zeng
- Department of Hepatology Division 2, Peking University Ditan Teaching Hospital, Beijing, China
| | - Xiao-Yue Bi
- Department of Hepatology Division 2, Beijing Ditan Hospital, Capital Medical University, Beijing, China
| | - Liu Yang
- Department of Hepatology Division 2, Beijing Ditan Hospital, Capital Medical University, Beijing, China
| | - Ming-Hui Li
- Department of Hepatology Division 2, Peking University Ditan Teaching Hospital, Beijing, China.,Department of Hepatology Division 2, Beijing Ditan Hospital, Capital Medical University, Beijing, China
| | - Yao Xie
- Department of Hepatology Division 2, Peking University Ditan Teaching Hospital, Beijing, China.,Department of Hepatology Division 2, Beijing Ditan Hospital, Capital Medical University, Beijing, China
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Moon SM, Yoo IY, Huh HJ, Lee NY, Jhun BW. Intermittent Treatment with Azithromycin and Ethambutol for Noncavitary Mycobacterium avium Complex Pulmonary Disease. Antimicrob Agents Chemother 2019; 64:e01787-19. [PMID: 31611366 DOI: 10.1128/AAC.01787-19] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2019] [Accepted: 10/10/2019] [Indexed: 11/20/2022] Open
Abstract
We evaluated the efficacy of intermittent azithromycin and ethambutol therapy for noncavitary Mycobacterium avium complex pulmonary disease (MAC-PD). Twenty-nine (76%) of 38 patients achieved sputum culture conversion after 12 months of treatment, and sputum smear positivity was an independent factor for failure to achieve culture conversion (adjusted odds ratio, 26.7; 95% confidence interval, 2.1 to 339.9; P = 0.011). Intermittent azithromycin and ethambutol may be an optional treatment regimen for noncavitary MAC-PD.
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Ghosh R, Roy S, Rashid MK. Assessment of microbiological status after successful completion of intermittent revised national tuberculosis control programme directly observed treatment, short course regimen for microbiologically confirmed pulmonary tuberculosis cases: While new daily regimen going to be implemented in India. Indian J Med Microbiol 2018; 36:251-256. [PMID: 30084420 DOI: 10.4103/ijmm.ijmm_18_65] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Purpose The Revised National Tuberculosis Control Programme (RNTCP) is now introducing daily fixed-dose regimen instead of Directly Observed Treatment, Short Course (DOTS) regimen for treatment of drug-sensitive tuberculosis (TB) in India. It would be beneficial to understand the drawbacks, barriers and advantages of the existing system for better implementation of new policy. Our study was aimed to evaluate the current microbiological status of new microbiologically confirmed pulmonary TB patients who have successfully completed intermittent DOTS regimen within last 2 years and also to find the economic barriers faced by beneficiaries to avail DOTS treatment. Materials and Methods We included patients who had completed CAT 1 DOTS regimen within the last 2 years. The patients were interviewed. Sputum sample was collected for microscopy and cartridge-based nucleic acid amplification test. Results All patients were adhered to intermittent DOTS therapy, and sputum conversion rate was 83%. Minor gastrointestinal side effects were experienced by 60% of cases and 87% consumed drugs under supervision. On microbiological examination, 10% of the study population was found to be positive for TB and they all were rifampicin sensitive. Those who had completed treatment within 1 year with no clinical symptoms re-appeared after treatment. Conclusion Till date, RNTCP does not follow up the patients for any period of time after successful completion of treatment. Through the present study, we could find relapse cases in 10% of the previously treated non-symptomatic patients. These unnoticed relapse cases have potential to spread TB and increase disease burden of country. Thus, we can conclude that RNTCP has to follow up the patients after successful treatment to determine whether they relapse. It is needed for the success of programme and control of the disease in the country.
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Affiliation(s)
- Roumi Ghosh
- Department of Microbiology, ESI- Post-graduate Institute of Medical Science and Research and ESIC Medical College, Kolkata, West Bengal, India
| | - Sudipta Roy
- Department of Microbiology, ESI- Post-graduate Institute of Medical Science and Research and ESIC Medical College, Kolkata, West Bengal, India
| | - Md Khalid Rashid
- Department of Microbiology, ESI- Post-graduate Institute of Medical Science and Research and ESIC Medical College, Kolkata, West Bengal, India
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Salgia R, Kulkarni P. The Genetic/Non-genetic Duality of Drug 'Resistance' in Cancer. Trends Cancer 2018; 4:110-118. [PMID: 29458961 DOI: 10.1016/j.trecan.2018.01.001] [Citation(s) in RCA: 163] [Impact Index Per Article: 27.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2017] [Revised: 01/06/2018] [Accepted: 01/08/2018] [Indexed: 12/22/2022]
Abstract
Drug resistance is a serious impediment to the treatment of cancer. However, the mechanisms involved remain poorly understood. While it is widely held that the phenomenon is genetic in nature, emerging evidence suggests that non-genetic mechanisms may also be important. Furthermore, at least in some cases, refractoriness to treatment can be reversed by epigenetic reprogramming, and combination and intermittent therapies, as opposed to sustained monotherapy, appear more effective in attenuating it. Here we iterate the confusion in understanding the phenomenon by which cancer cells evade drug response and underscore the need to recognize the genetic/non-genetic duality of drug resistance in cancer. We discuss how ecological and evolutionary principles may help to reconcile the duality and may even offer new treatment strategies.
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Affiliation(s)
- Ravi Salgia
- Department of Medical Oncology and Therapeutics Research, City of Hope National Medical Center, 1500 East Duarte Road, Duarte, CA 91010, USA.
| | - Prakash Kulkarni
- Department of Medical Oncology and Therapeutics Research, City of Hope National Medical Center, 1500 East Duarte Road, Duarte, CA 91010, USA
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9
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Park SW, Tasneen R, Converse PJ, Nuermberger EL. Immunodeficiency and Intermittent Dosing Promote Acquired Rifamycin Monoresistance in Murine Tuberculosis. Antimicrob Agents Chemother 2017; 61:e01502-17. [PMID: 28874368 DOI: 10.1128/AAC.01502-17] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2017] [Accepted: 08/21/2017] [Indexed: 01/09/2023] Open
Abstract
More-permissive preclinical models may be useful in evaluating antituberculosis regimens for their propensity to select drug-resistant mutants. To evaluate whether acquired rifamycin monoresistance could be recapitulated in mice and, if so, to evaluate the effects of immunodeficiency, intermittent dosing, and drug exposures, athymic nude and BALB/c mice were infected. Controls received daily rifapentine alone or 2 months of rifampin, isoniazid, pyrazinamide, and ethambutol, followed by 4 months of rifampin/isoniazid, either daily or twice weekly with one of two isoniazid doses. Test groups received the same intensive regimen followed by once-weekly rifapentine or isoniazid/rifapentine with rifapentine doses of 10, 15, or 20 mg/kg of body weight plus one of two isoniazid doses. All combination regimens rendered BALB/c mouse cultures negative but selected mutants resistant to isoniazid (8.5%, 12/140) or rifampin (3.5%, 5/140) in nude mice (P < 0.001). Intermittently dosed intensive-phase therapy selected isoniazid and rifampin resistance in 10% (8/80, P < 0.001) and 20% (16/80, P = 0.009) of nude mice, respectively, compared to 0% treated with a daily regimen. Once-weekly rifapentine-containing continuation-phase regimens selected rifampin-resistant mutants at a rate of 18.0% (18/100, P = 0.035 compared to rifampin/isoniazid regimens). Higher isoniazid doses in the intermittent-treatment control regimen and higher rifapentine doses in once-weekly regimens were associated with less selection of isoniazid resistance. Acquired resistance, including rifamycin monoresistance, was more likely to occur in nude mice despite administration of combination therapy. These results recapitulate clinical outcomes and indicate that nude mice may be useful for evaluating the ability of novel regimens to prevent the selection of resistance.
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10
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Torzecka JD, Dziankowska-Bartkowiak B, Gerlicz-Kowalczuk Z, Wozniacka A. The use of isotretinoin in low doses and unconventional treatment regimens in different types of acne: a literature review. Postepy Dermatol Alergol 2017; 34:1-5. [PMID: 28261025 DOI: 10.5114/ada.2017.65614] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2015] [Accepted: 02/26/2016] [Indexed: 11/17/2022] Open
Abstract
High effectiveness of isotretinoin treatment for severe types of acne resistant to antibiotics has been widely recognized. However, the recommended doses in conventional therapy, according to consensus of the Polish Dermatological Society, may cause serious adverse effects. Thus, research into less stressful, alternative treatment regimens with the use of low doses of isotretinoin has been carried out. The aim of the paper was to review the selected papers where authors present the results of their studies on different regimens with the use of isotretinoin in low doses in patients with acne, evaluate their efficacy, patient satisfaction, frequency of adverse effects, recurrences and also treatment costs.
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11
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Abstract
The time the earth takes to rotate its axis (the day) has dictated how often pharmaceutical compounds are dosed. The scientific link between the 2 events is materia medica arcana. As an example, in the treatment of invasive candidiasis, antifungal therapy with intravenous micafungin is dosed daily. A literature review revealed population pharmacokinetic analyses, in vivo pharmacokinetics/pharmacodynamics studies, and maximum-tolerated-dose studies of micafungin that examined optimal micafungin dosing strategies. The half-life of micafungin in patient blood was 14 hours in several studies, but was even longer in different organs, so that the concentration will persist above minimum inhibitory concentrations of Candida species for several days. Studies in mice and rabbits with persistent neutropenia and disseminated candidiasis, otherwise fatal, demonstrated that a single large dose of micafungin could clear disseminated candidiasis, even though the micafungin half-life in such animals is shorter than in humans. Human pharmacokinetics/pharmacodynamics studies confirmed this link between micafungin efficacy and the ratio of the area under the concentration-time curve, and the optimal exposures initially identified in neutropenic animals. Maximum tolerated dose studies have demonstrated safety of 900 mg administered daily for several weeks, whereas case reports demonstrate efficacy and safety of single 1400-mg doses. Thus, a single dose of micafungin, or 2 such doses within a few days of each other, is not only logical, but might even lead to faster clearance of Candida.
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Affiliation(s)
- Tawanda Gumbo
- Center for Infectious Diseases Research and Experimental Therapeutics, Baylor Research Institute, Baylor University Medical Center, Dallas, Texas
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Grenader T, Nash S, Adams R, Kaplan R, Fisher D, Maughan T, Bridgewater J. Derived neutrophil lymphocyte ratio is predictive of survival from intermittent therapy in advanced colorectal cancer: a post hoc analysis of the MRC COIN study. Br J Cancer 2016; 114:612-5. [PMID: 26889974 PMCID: PMC4800295 DOI: 10.1038/bjc.2016.23] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2015] [Revised: 11/24/2015] [Accepted: 01/04/2016] [Indexed: 01/03/2023] Open
Abstract
BACKGROUND The phase III COntinuous or INtermittent (COIN) trial failed to show non-inferiority of intermittent compared with continuous chemotherapy for advanced colorectal cancer in overall survival (OS). The present analysis evaluated whether the derived neutrophil to lymphocyte ratio (dNLR) could predict the effect of intermittent vs continuous chemotherapy on OS in patients with advanced colorectal cancer. METHODS A post hoc exploratory analysis of COIN arms A and C was performed. Landmark analysis was conducted on all patients with available WBC and neutrophils data. The dNLR was calculated using a formula which has previously demonstrated predictive power in cancer patients: dNLR = ANC/(WBC-ANC). A high dNLR was defined using a cut-off value of ⩾ 2.22. Derived neutrophil to lymphocyte ratio was then correlated with clinical outcomes. Survival curves were generated based on dNLR using the Kaplan-Meier method. Comparison between groups was performed using Cox regression. RESULTS A total of 1630 patients were assigned to the continuous (N = 815) or intermittent (N = 815) arms. There was a strong association between dNLR level and OS. The median survival times in the ITT population were 18.6 months and 12.5 months for patients with low and high dNLR, respectively (HR = 1.70; 95% CI = 1.52-1.90; P < 0.001). The estimate of the hazard ratio did not alter substantially (HR = 1.54) after adjusting for treatment, tumour status, number of metastatic sites, alkaline phosphate and platelet count. CONCLUSIONS Derived neutrophil to lymphocyte ratio is strongly prognostic for survival in the COIN intermittent vs continuous treatment arms. Derived neutrophil to lymphocyte ratio does not predict for detrimental survival in patients treated with intermittent therapy.
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Affiliation(s)
- Tal Grenader
- Oncology Institute, Shaare Zedek Medical Centre, Serusatem, Israel
| | - Stephen Nash
- Cancer Research UK & UCL Cancer Trials Centre, London WIT 4TJ4TJ, UK
| | - Richard Adams
- Institute of Cancer & Genetics, Cardiff University School of Medicine Velindre Hospital, Cardiff CF14 2TL, UK
| | | | - David Fisher
- MRC Clinical Trials Unit at UCL, London WC2B 6NH, UK
| | - Tim Maughan
- CRUK/MRC Oxford Institute for Radiation, Oxford OX3 7DQ, UK
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Kume H, Kawai T, Nagata M, Azuma T, Miyazaki H, Suzuki M, Fujimura T, Nakagawa T, Fukuhara H, Homma Y. Intermittent docetaxel chemotherapy is feasible for castration-resistant prostate cancer. Mol Clin Oncol 2014; 3:303-307. [PMID: 25798258 DOI: 10.3892/mco.2014.469] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2014] [Accepted: 11/14/2014] [Indexed: 01/14/2023] Open
Abstract
This study was conducted with the aim to investigate the feasibility of intermittent treatment with docetaxel chemotherapy for castration-resistant prostate cancer (CRPC). A total of 51 men with CRPC received docetaxel at 75 mg/m2 every 3 weeks combined with oral dexamethasone 1.0-2.0 mg/day between 2008 and 2013. The prostate-specific antigen (PSA) level was monitored every 3 weeks. Chemotherapy was suspended when the serum PSA level decreased to < 4 ng/ml, with a reduction rate of >50% from the baseline. Treatment was resumed when serum PSA increased to > 2 ng/ml, with an increase rate of >50% from the nadir. Of the 51 cases, 27 (52.9%) qualified for intermittent treatment; 17 patients received two courses of docetaxel chemotherapy and 10 received three courses. The median off-treatment interval was 266 days for the first drug holiday, 129.5 days for the second and 146.5 days for the third. The multivariate analysis indicated low baseline PSA (<median, 30.55 ng/ml; odds ratio = 0.059, P=0.010) and low Gleason score at diagnosis (≤ 7; odds ratio = 0.016, P=0.040) as significant factors for receiving intermittent therapy. The overall survival was better in intermittent cases (hazard ratio = 2.98 by log-rank test, P=0.023). During the off-treatment period, leukopenia, thrombopenia, appetite loss, diarrhea, alopecia, nail changes and fatigue subsided (0.0-11.1%), whereas sensory and/or motor neuropathy persisted in 12 of the 27 cases (44.4%). Therefore, our intermittent regimen of docetaxel chemotherapy was found to be feasible for CRPC patients, since it may reduce adverse events without compromising the oncological outcome.
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Affiliation(s)
- Haruki Kume
- Department of Urology, The University of Tokyo Hospital, Tokyo 113-8655, Japan
| | - Taketo Kawai
- Department of Urology, The University of Tokyo Hospital, Tokyo 113-8655, Japan
| | - Masayoshi Nagata
- Department of Urology, The University of Tokyo Hospital, Tokyo 113-8655, Japan
| | - Takeshi Azuma
- Department of Urology, The University of Tokyo Hospital, Tokyo 113-8655, Japan
| | - Hideyo Miyazaki
- Department of Urology, The University of Tokyo Hospital, Tokyo 113-8655, Japan
| | - Motofumi Suzuki
- Department of Urology, The University of Tokyo Hospital, Tokyo 113-8655, Japan
| | - Tetsuya Fujimura
- Department of Urology, The University of Tokyo Hospital, Tokyo 113-8655, Japan
| | - Tohru Nakagawa
- Department of Urology, The University of Tokyo Hospital, Tokyo 113-8655, Japan
| | - Hiroshi Fukuhara
- Department of Urology, The University of Tokyo Hospital, Tokyo 113-8655, Japan
| | - Yukio Homma
- Department of Urology, The University of Tokyo Hospital, Tokyo 113-8655, Japan
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Narendran G, Menon PA, Venkatesan P, Vijay K, Padmapriyadarsini C, Ramesh Kumar S, Bhavani KP, Sekar L, Gomathi SN, Chandrasekhar C, Kumar S, Sridhar R, Swaminathan S. Acquired rifampicin resistance in thrice-weekly antituberculosis therapy: impact of HIV and antiretroviral therapy. Clin Infect Dis 2014; 59:1798-804. [PMID: 25156114 DOI: 10.1093/cid/ciu674] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Risk factors for acquired rifampicin resistance (ARR) in human immunodeficiency virus (HIV)/tuberculosis coinfection, in the highly active antiretroviral therapy (HAART) era, needs evaluation. We studied the impact of HIV and HAART on ARR among patients taking thrice-weekly antituberculosis therapy. METHODS This cross-protocol analysis included patients with newly diagnosed, rifampicin-susceptible pulmonary tuberculosis, with and without HIV, enrolled in clinical trials (who took >80% of medication) at the National Institute for Research in Tuberculosis between 1999 and 2013. All patients received rifampicin and isoniazid for 6 months reinforced with pyrazinamide and ethambutol in the first 2 months, given thrice-weekly throughout the study along with HAART in one of the groups. Outcomes were categorized and multivariate logistic regression analysis performed to identify risk factors for ARR. RESULTS The per-protocol results included patients with tuberculosis: 246 HIV-uninfected patients (HIV(-)TB(+)), 212 HIV patients not on HAART (non-HAART), and 116 HIV-infected patients on HAART. Median CD4 counts of the latter 2 groups were 150 and 93 cells/µL, respectively, and the median viral loads were 147 000 and 266 000 copies/mL, respectively. Compared with HIV(-)TB(+), the relative risks (RRs) for an unfavorable response in the coinfected, non-HAART and HAART groups were 2.1 (95% confidence interval [CI], 1.7-14.8; P<.0001) and 2.1 (95% CI, .9-5.2; P=.3), whereas for ARR, the RRs were 21.1 (95% CI, 2.6-184; P<.001) and 8.2 (95% CI, .6-104; P=.07), respectively. CONCLUSIONS HIV-infected patients with tuberculosis treated with a thrice-weekly antituberculosis regimen are at a higher risk of ARR, compared with HIV-uninfected patients, in the presence of baseline isoniazid resistance. HAART reduces but does not eliminate the risk of ARR.
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Affiliation(s)
- Gopalan Narendran
- National Institute for Research in Tuberculosis (formerly Tuberculosis Research Centre), Chetpet
| | - Pradeep Aravindan Menon
- National Institute for Research in Tuberculosis (formerly Tuberculosis Research Centre), Chetpet
| | - Perumal Venkatesan
- National Institute for Research in Tuberculosis (formerly Tuberculosis Research Centre), Chetpet
| | - Krishnamoorthy Vijay
- National Institute for Research in Tuberculosis (formerly Tuberculosis Research Centre), Chetpet
| | | | | | | | - Lakshmanan Sekar
- National Institute for Research in Tuberculosis (formerly Tuberculosis Research Centre), Chetpet
| | | | | | - Satagopan Kumar
- Government Hospital of Thoracic Medicine, Tambaram Sanatorium
| | | | - Soumya Swaminathan
- National Institute for Research in Tuberculosis (formerly Tuberculosis Research Centre), Chetpet
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Wolff JM, Abrahamsson PA, Irani J, da Silva FC. Is intermittent androgen-deprivation therapy beneficial for patients with advanced prostate cancer? BJU Int 2014; 114:476-83. [PMID: 24433259 DOI: 10.1111/bju.12626] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Use of intermittent androgen-deprivation therapy (IADT) in patients with prostate cancer has been evaluated in several studies, in an attempt to delay the development of castration resistance and reduce side-effects associated with ADT. However it is still not clear whether survival is adversely affected in patients treated with IADT. In this review, we explore the available data in an attempt to identify the most suitable candidate patients for IADT, and discuss factors that may inform appropriate patient stratification. ADT is first-line treatment for advanced/metastatic prostate cancer and is also recommended for use with definitive radiotherapy for high-risk localised prostate cancer. The changes in hormone levels induced by ADT can lead to short- and long-term side-effects which, although treatable in most cases, can significantly reduce the tolerability of ADT treatment. IADT has been investigated in several phase II and phase III studies in patients with locally advanced or metastatic prostate cancer, in an attempt to delay time to tumour progression and reduce the side-effect burden of ADT. In selected patient groups IADT is no less effective than continuous ADT, ameliorating the impact of ADT-related side-effects, and, to a degree, their impact on patient health-related quality of life (HRQL). Further comparative study is required, particularly in relation to HRQL and long-term complications associated with ADT.
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Salonen AJ, Taari K, Ala-Opas M, Sankila A, Viitanen J, Lundstedt S, Tammela TLJ. Comparison of intermittent and continuous androgen deprivation and quality of life between patients with locally advanced and patients with metastatic prostate cancer: a post hoc analysis of the randomized FinnProstate Study VII. Scand J Urol 2014; 48:513-22. [PMID: 24679247 DOI: 10.3109/21681805.2014.901410] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
OBJECTIVE The aim of the study was to compare intermittent (IAD) and continuous (CAD) androgen deprivation therapy (ADT) between locally advanced (M0) and metastatic (M1) prostate cancer, and the effect of ADT on the quality of life. MATERIAL AND METHODS In total, 852 men with advanced prostate cancer were enrolled to receive goserelin acetate for 24 weeks. Of these, 554 patients whose prostate-specific antigen (PSA) decreased to less than 10 ng/ml or by at least 50% (<20 ng/ml at baseline) were randomized to IAD or CAD. In the IAD arm, ADT was resumed for at least 24 weeks whenever PSA increased to greater than 20 ng/ml or above baseline. RESULTS Median follow-up time was 65 months. Median times from randomization to progression, death, prostate cancer death and treatment failure in M0 and M1 patients were 46.8 and 21.4, 57.6 and 40.3, 59.5 and 40.7, and 41.9 and 20.0 months, respectively (p < 0.001). No significant differences emerged between IAD and CAD. ADT showed a beneficial effect on pain, activity limitation and social functioning in M1 patients, and a deleterious effect on physical capacity in M0 patients and on sexual functioning in both groups. IAD offered extra benefit for activity limitation, social functioning and recovery of sexual functioning. CONCLUSIONS IAD is as efficient as CAD in treatment of locally advanced and metastatic prostate cancer. ADT improves quality of life in M1 patients, with IAD offering extra benefit.
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Affiliation(s)
- Arto J Salonen
- Department of Urology, Kuopio University Hospital , Kuopio , Finland
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Abstract
Background: Seborrheic dermatitis (SD) is an inflammatory skin disorder in which colonies of Malassezia furfur have been found in affected areas. Aim: The aim of this study was to evaluate the efficacy of itraconazole in the treatment of severe SD. Materials and Methods: Itraconazole was given to 30 patients of SD in a dose of 100 mg twice daily for 1 week followed by 200 mg/day for first 2 days of the following 2 months. The response was noted on day 15, 30, 60, and 90. The clinical response was graded as markedly effective, effective, or ineffective. Results: Clinical improvement (evaluated as markedly effective or effective) was observed in 83.3% cases. Conclusion: The anti-inflammatory activity of oral itraconazole suggests that it should be the first-line therapy in severe SD.
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Affiliation(s)
- Jayasri Das
- Department of Dermatology, Calcutta School of Tropical Medicine, Kolkata, West Bengal
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