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Yoneda T, Hoshina T, Fukuda T, Ohama N, Murakawa S, Kusuhara K. A previously unreported case of suppurative thrombophlebitis due to Clavispora lusitaniae. J Mycol Med 2023; 33:101390. [PMID: 37126897 DOI: 10.1016/j.mycmed.2023.101390] [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: 09/19/2022] [Revised: 04/16/2023] [Accepted: 04/20/2023] [Indexed: 05/03/2023]
Abstract
We report a case with Clavispora lusitaniae-induced purulent thrombophlebitis. The patient had multiple risk factors for the development of fungal thrombophlebitis including surgical procedure, mechanical ventilation, admission to intensive care unit, total parenteral nutrition and long-term antimicrobial therapy in addition to the insertion of central venous catheter. The symptoms finally improved by a combination therapy of micafungin and flucytosine, but the therapy did not rapidly resolve candidemia. The appropriate antifungal therapy for C. lusitaniae-induced purulent thrombophlebitis is uncertain. Further study is desired to seek the appropriate therapy for the disease.
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Affiliation(s)
- Toru Yoneda
- Department of Pediatrics, School of Medicine, University of Occupational and Environmental Health, Japan, Kitakyushu, Fukuoka, Japan
| | - Takayuki Hoshina
- Department of Pediatrics, School of Medicine, University of Occupational and Environmental Health, Japan, Kitakyushu, Fukuoka, Japan.
| | - Tomofumi Fukuda
- Department of Pediatrics, School of Medicine, University of Occupational and Environmental Health, Japan, Kitakyushu, Fukuoka, Japan
| | - Nao Ohama
- Department of Pediatrics, School of Medicine, University of Occupational and Environmental Health, Japan, Kitakyushu, Fukuoka, Japan
| | - Saori Murakawa
- Department of Pediatrics, School of Medicine, University of Occupational and Environmental Health, Japan, Kitakyushu, Fukuoka, Japan
| | - Koichi Kusuhara
- Department of Pediatrics, School of Medicine, University of Occupational and Environmental Health, Japan, Kitakyushu, Fukuoka, Japan
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2
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Zhao T, Xu X, Wu Y, Zhang W, Zeng Q, Lu Y, Yang T, Zhou G, Yu J, Lan K, Harypursat V, Chen Y. Comparison of amphotericin B deoxycholate in combination with either flucytosine or fluconazole, and voriconazole plus flucytosine for the treatment of HIV-associated cryptococcal meningitis: a prospective multicenter study in China. BMC Infect Dis 2022; 22:677. [PMID: 35941618 PMCID: PMC9358851 DOI: 10.1186/s12879-022-07665-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Accepted: 08/02/2022] [Indexed: 12/04/2022] Open
Abstract
Background The most appropriate alternative to induction therapy for HIV-associated cryptococcal meningitis (CM) remains unclear when standard treatment is unavailable, inaccessible, intolerable, or ineffective. Methods A prospective, multi-centre cohort study was conducted to analyze the data of 156 HIV-infected patients with CM who were treated with amphotericin B deoxycholate (AmB-D) + flucytosine (5FC), voriconazole (VCZ) + 5FC, or AmB-D + Fluconazole (Flu) as induction regimens. Clinical efficacy, cumulative mortality, and adverse effects were compared among the three treatment groups. Results Fewer deaths occurred by week 4 and week 10 among patients receiving AmB-D + 5FC than among those receiving AmB-D + Flu [4 (5.1%) vs. 8 (16.0%) deaths by week 4; hazard ratio, 1.8; 95% confidence interval [CI], 1.0 to 3.3; p = 0.039; and 8 (10.3%) vs. 14 (28.0%) deaths by week 10; hazard ratio, 1.8; 95% CI, 1.1 to 2.7; p = 0.008, respectively]. AmB-D plus 5FC was found to result in significantly higher rates of cerebrospinal fluid (CSF) culture sterility (57.6% vs. 34% by week 2; 87.9% vs. 70% by week 10; p < 0.05 for both comparisons). However, the differences in CSF culture sterility and mortality between the VCZ + 5FC group and the AmB-D + 5FC group were not statistically significant. VCZ plus 5FC had a significantly advantageous effect on the incidence of new AIDS-defining illness and length of hospital stay, compared with AmB-D plus 5FC. Laboratory adverse events (grade 3 or 4), such as severe anemia, were less frequent with VCZ + 5FC use than with AmB-D combined with 5FC or Flu use. Conclusion Our results suggest that AmB-D combined with 5FC remains the more efficacious induction regimen compared to AmB-D plus Flu, and that VCZ + 5FC might be a potential alternative when the standard regimen is not readily available, accessible, tolerated, or effective. Clinical Trials: Registration number, ChiCTR1900021195. Registered 1 February 2019, http://www.chictr.org.cn/showproj.aspx?proj=35362.
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Affiliation(s)
- Ting Zhao
- Clinical Research Center, Chongqing Public Health Medical Center, Chongqing, China.,Division of Infectious Diseases, Chongqing Public Health Medical Center, 109 Baoyu Road, Shapingba, Chongqing, 400036, China
| | - Xiaolei Xu
- Clinical Research Center, Chongqing Public Health Medical Center, Chongqing, China.,Division of Infectious Diseases, Chongqing Public Health Medical Center, 109 Baoyu Road, Shapingba, Chongqing, 400036, China
| | - Yushan Wu
- Division of Infectious Diseases, Chongqing Public Health Medical Center, 109 Baoyu Road, Shapingba, Chongqing, 400036, China
| | - Wei Zhang
- Division of Infectious Diseases, Chongqing Public Health Medical Center, 109 Baoyu Road, Shapingba, Chongqing, 400036, China
| | - Qin Zeng
- Division of Infectious Diseases, Chongqing Public Health Medical Center, 109 Baoyu Road, Shapingba, Chongqing, 400036, China
| | - Yanqiu Lu
- Clinical Research Center, Chongqing Public Health Medical Center, Chongqing, China.,Division of Infectious Diseases, Chongqing Public Health Medical Center, 109 Baoyu Road, Shapingba, Chongqing, 400036, China
| | - Tongtong Yang
- Division of Infectious Diseases, Public Health Clinical Center of Chengdu, Sichuan, China
| | - Guoqiang Zhou
- Division of Infectious Diseases, The First Hospital of Changsha, Hunan, China
| | - Jianhua Yu
- Division of Infectious Diseases, Xixi Hospital of Hangzhou, Zhejiang, China
| | - Ke Lan
- Department of Infectious Disease, Longtan Hospital of Guangxi Zhuang Autonomous Region, Guangxi, China
| | - Vijay Harypursat
- Division of Infectious Diseases, Chongqing Public Health Medical Center, 109 Baoyu Road, Shapingba, Chongqing, 400036, China
| | - Yaokai Chen
- Clinical Research Center, Chongqing Public Health Medical Center, Chongqing, China. .,Division of Infectious Diseases, Chongqing Public Health Medical Center, 109 Baoyu Road, Shapingba, Chongqing, 400036, China.
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3
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Takazono T, Hidaka Y, Morimoto S, Tashiro M, Ashizawa N, Hirayama T, Takeda K, Iwanaga N, Hosogaya N, Yamamoto K, Fushimi K, Yanagihara K, Mukae H, Izumikawa K. A comparison of liposomal amphotericin B alone and in combination with flucytosine in the treatment of non-HIV Cryptococcal meningitis: A nationwide observational study. Mycoses 2022; 65:897-902. [PMID: 35802067 DOI: 10.1111/myc.13493] [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] [Received: 01/22/2022] [Revised: 06/23/2022] [Accepted: 06/30/2022] [Indexed: 11/28/2022]
Abstract
BACKGROUND Cryptococcal meningitis (CM) is an opportunistic infectious disease that occurs in immunocompromised hosts, not only in patients living with HIV, but also in patients without HIV. The evidence regarding the treatment for CM in patients without HIV is mainly found in small retrospective studies and is extremely limited. OBJECTIVES In the present study, we compared the efficacy of liposomal amphotericin B (L-AMB) alone and in combination with flucytosine (5-FC) for the induction treatment of CM in patients without HIV. PATIENTS/METHODS Data was gathered from the Japanese Diagnosis Procedure Combination database obtained from hospitals throughout Japan. The study included 517 patients without HIV but having CM who fulfilled the inclusion and exclusion criteria. We analyzed the average effect of adding 5-FC to L-AMB treatment using the survival time within 14 days of the diagnosis after adjustment of the baseline clinical characteristics with associations with both selections of the treatment and the prognosis. RESULTS A total of 146 and 217 CM patients received L-AMB and L-AMB with 5-FC, respectively, within 7 days of diagnosis. L-AMB with 5-FC showed better prognosis than L-AMB on day 14 (mortality 6% vs. 11%, hazard ratio, 0.5775; 95% confidence interval, 0.2748-1.213; p = 0.1, Wald test). CONCLUSIONS From the results of this real-world database study, we revealed that the combination therapy of 5-FC on L-AMB for induction therapy might have an advantage on the survival time of NHNT patients with CM as well as PLHIV patients with CM.
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Affiliation(s)
- Takahiro Takazono
- Department of Infectious Diseases, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan.,Department of Respiratory Medicine, Nagasaki University Hospital, Nagasaki, Japan
| | - Yusuke Hidaka
- Department of Infectious Diseases, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan.,Department of Respiratory Medicine, Nagasaki University Hospital, Nagasaki, Japan.,Department of General Internal Medicine, National Hospital Organization Nagasaki Medical Center, Nagasaki, Japan
| | - Shimpei Morimoto
- Innovation Platform & Office for Precision Medicine, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan.,Nagasaki University Hospital, Clinical Research Center, Nagasaki, Japan
| | - Masato Tashiro
- Department of Infectious Diseases, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan.,Infection Control and Education Center, Nagasaki University Hospital, Nagasaki, Japan
| | - Nobuyuki Ashizawa
- Department of Respiratory Medicine, Nagasaki University Hospital, Nagasaki, Japan.,Infection Control and Education Center, Nagasaki University Hospital, Nagasaki, Japan
| | - Tatsuro Hirayama
- Department of Respiratory Medicine, Nagasaki University Hospital, Nagasaki, Japan.,Department of Pharmacotherapeutics, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Kazuaki Takeda
- Department of Respiratory Medicine, Nagasaki University Hospital, Nagasaki, Japan.,Infection Control and Education Center, Nagasaki University Hospital, Nagasaki, Japan
| | - Naoki Iwanaga
- Department of Respiratory Medicine, Nagasaki University Hospital, Nagasaki, Japan
| | - Naoki Hosogaya
- Nagasaki University Hospital, Clinical Research Center, Nagasaki, Japan
| | - Kazuko Yamamoto
- Department of Respiratory Medicine, Nagasaki University Hospital, Nagasaki, Japan
| | - Kiyohide Fushimi
- Department of Health Policy and Informatics, Tokyo Medical and Dental University Graduate School, Tokyo, Japan
| | - Katsunori Yanagihara
- Department of Laboratory Medicine, Nagasaki University Hospital, Nagasaki, Japan
| | - Hiroshi Mukae
- Department of Respiratory Medicine, Nagasaki University Hospital, Nagasaki, Japan
| | - Koichi Izumikawa
- Department of Infectious Diseases, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan.,Infection Control and Education Center, Nagasaki University Hospital, Nagasaki, Japan
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4
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Béguin J, Kohlhauer M, Laloy E, Degorce F, Moreau B, Quéméneur É, Erbs P, Klonjkowski B, Maurey C. Pharmacokinetics and tolerance of repeated oral administration of 5-fluorocytosine in healthy dogs. BMC Vet Res 2021; 17:220. [PMID: 34154593 PMCID: PMC8218522 DOI: 10.1186/s12917-021-02927-5] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Accepted: 05/19/2021] [Indexed: 11/10/2022] Open
Abstract
Background 5-fluorocytosine is a pyrimidine and a fluorinated cytosine analog mainly used as an antifungal agent. It is a precursor of 5-fluorouracil, which possesses anticancer properties. To reduce systemic toxicity of 5-fluorouracil during chemotherapy, 5- fluorocytosine can be used as a targeted anticancer agent. Expression of cytosine deaminase by a viral vector within a tumor allows targeted chemotherapy by converting 5-fluorocytosine into the cytotoxic chemotherapeutic agent 5-fluorouracil. However, little is known about the tolerance of 5-fluorocytosine in dogs after prolonged administration. Results In three healthy Beagle dogs receiving 100 mg/kg of 5-fluorocytosine twice daily for 14 days by oral route, non-compartmental pharmacokinetics revealed a terminal elimination half-life of 164.5 ± 22.5 min at day 1 and of 179.2 ± 11.5 min, after 7 days of administration. Clearance was significantly decreased between day 1 and day 7 with 0.386 ± 0.031 and 0.322 ± 0.027 ml/min/kg, respectively. Maximal plasma concentration values were below 100 µg/ml, which is considered within the therapeutic margin for human patients. 5-fluorouracil plasma concentration was below the limit of detection at all time points. The main adverse events consisted of depigmented, ulcerated, exudative, and crusty cutaneous lesions 10 to 13 days after beginning 5-fluorocytosine administration. The lesions were localized to the nasal planum, the lips, the eyelids, and the scrotum. Histological analyses were consistent with a cutaneous lupoid drug reaction. Complete healing was observed 15 to 21 days after cessation of 5-fluorocytosine. No biochemical or hematological adverse events were noticed. Conclusions Long term administration of 5-fluorocytosine was associated with cutaneous toxicity in healthy dogs. It suggests that pharmacotherapy should be adjusted to reduce the toxicity of 5-fluorocytosine in targeted chemotherapy. Supplementary Information The online version contains supplementary material available at 10.1186/s12917-021-02927-5.
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Affiliation(s)
- Jérémy Béguin
- UMR Virologie, INRAE, École Nationale Vétérinaire d'Alfort, ANSES, Université Paris-Est, Maisons-Alfort, France. .,Department of Internal Medicine, École Nationale Vétérinaire d'Alfort, ANSES, Université Paris-Est, Maisons-Alfort, France. .,Transgene, Illkirch-Graffenstaden, Strasbourg, France.
| | - Matthias Kohlhauer
- U955 - IMRB Inserm, École Nationale Vétérinaire d'Alfort, UPEC, F-94700, Maisons-Alfort, France.,Pharmacology-Toxicology Unit, École Nationale Vétérinaire d'Alfort, Université Paris-Est, F-94700, Maisons-Alfort, France
| | - Eve Laloy
- Anatomical Pathology Unit, Biopôle Alfort, École Nationale Vétérinaire d'Alfort, Université Paris-Est, F-94700, Maisons-Alfort, France
| | - Frédérique Degorce
- Laboratoire d'Anatomie Pathologique Vétérinaire du Sud-Ouest, Toulouse, France
| | | | | | - Philippe Erbs
- Transgene, Illkirch-Graffenstaden, Strasbourg, France
| | - Bernard Klonjkowski
- UMR Virologie, INRAE, École Nationale Vétérinaire d'Alfort, ANSES, Université Paris-Est, Maisons-Alfort, France
| | - Christelle Maurey
- Department of Internal Medicine, École Nationale Vétérinaire d'Alfort, ANSES, Université Paris-Est, Maisons-Alfort, France
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5
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Vidal JE, de Albuquerque Moraes C, de Siqueira REB, Miranda NFB, Marcusso R, Boulware DR, de Oliveira ACP. HIV-Associated Cryptococcal Meningitis Patients Treated with Amphotericin B Deoxycholate Plus Flucytosine under Routine Care Conditions in a Referral Center in São Paulo, Brazil. Mycopathologia 2021; 186:93-102. [PMID: 33258083 DOI: 10.1007/s11046-020-00512-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Accepted: 11/19/2020] [Indexed: 10/20/2022]
Abstract
BACKGROUND Cryptococcal meningitis remains a common cause of mortality in low- and middle-income countries, where amphotericin B deoxycholate (amphotericin) plus fluconazole is the most common treatment. Flucytosine is almost uniformly absent as is outcome data on flucytosine use in routine care. The main goal of this study was identified the cumulative mortality at 2, 4, and 10 weeks after hospital admission. METHODS We conducted a retrospective, observational cohort study among HIV-infected adults with cryptococcal meningitis receiving amphotericin plus flucytosine as induction therapy in Brazil. We assessed cumulative mortality at 2, 4, and 10 weeks and the cumulative proportion discontinuating amphotericin or flucytosine due to toxicity at 2 weeks. We performed multiple logistic regression to identify variables associated with in-hospital mortality. RESULTS In total, 77 individuals (n = 66 men) were included with median baseline CD4 of 29 (IQR, 9-68) cells/mcL. Twenty (26%) had at least one concurrent neurological disease diagnosed. Sixty (78%) patients received at least 14 days of amphotericin plus flucytosine. Cumulative mortality was 5% (4/77) at 2 weeks, 8% (6/77) at 4 weeks, and 19% (15/77) at 10 weeks. Cumulative proportion of patients that discontinuated amphotericin or flucytosine due to toxicity was 20% (16/77) at 2 weeks. In addition, in-hospital mortality was associated with receiving ≤ 10 days of induction therapy (odds ratio = 4.5, 95% CI 1.2-17.1, P = 0.028) or positive cerebrospinal fluid fungal culture after 2 weeks (odds ratio = 3.8, 95% CI 1.1-13.5, P = 0.035). CONCLUSION In this "real-world" study, amphotericin plus flucytosine shows low early mortality of patients with HIV-associated cryptococcal meningitis. Early discontinuation due to adverse events was moderate. More effective and safe antifungals are needed in order to improve the outcome of cryptococcal meningitis.
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6
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Shroufi A, Govender NP, Meintjes G, Black J, Nel J, Moosa MYS, Menezes C, Dawood H, Wilson D, Duran LT, Ajose O, Murphy RA, Harrison T, Loyse A, Ruffell C, Van Cutsem G. Time to embrace access programmes for medicines: lessons from the South African flucytosine access programme. Int J Infect Dis 2020; 95:459-461. [PMID: 32126322 DOI: 10.1016/j.ijid.2020.02.057] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [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: 12/24/2019] [Revised: 02/24/2020] [Accepted: 02/26/2020] [Indexed: 10/24/2022] Open
Abstract
BACKGROUND Cryptococcal meningitis (CM) is estimated to cause 181 000 deaths annually, with the majority occurring in Sub-Saharan Africa. Flucytosine is recommended by the World Health Organization as part of the treatment for CM. Widespread use of flucytosine could reduce mortality in hospital by as much as 40% compared to the standard of care, yet due to market failure, quality-assured flucytosine remains unregistered and largely inaccessible throughout Africa. METHODS The recently established South African flucytosine clinical access programme is an attempt to address the market failure that led to a lack of public sector access to flucytosine for CM, by making the medicine freely available to tertiary hospitals in South Africa. RESULTS Between November 2018 and September 2019, 327 CM patients received flucytosine through this programme, with efforts to support sustainable national scale-up presently ongoing. We describe why this programme was needed, its catalytic potential, what is still required to ensure widespread access to flucytosine, and observations from this experience that may have wider relevance. CONCLUSIONS The South African flucytosine access programme illustrates how access programmes may be one part of the solution to addressing the vicious cycle of perceived low demand, limiting manufacturer interest in specific product markets.
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Affiliation(s)
- Amir Shroufi
- Doctors Without Borders South Africa, Johannesburg, South Africa
| | - Nelesh P Govender
- National Institute for Communicable Diseases, A Division of the National Health Laboratory Service and University of the Witwatersrand, Johannesburg, South Africa
| | | | - John Black
- Livingstone Hospital, Eastern Cape, South Africa
| | - Jeremy Nel
- Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | | | - Colin Menezes
- Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa; Chris Hani Baragwanath Hospital, Johannesburg, South Africa
| | - Halima Dawood
- University of Kwa Zulu Natal, Kwa Zulu Natal, South Africa
| | | | | | - Olawale Ajose
- Drugs for Neglected Diseases Initiative, Los Angeles, USA
| | - Richard A Murphy
- David Geffen School of Medicine at UCLA, Los Angeles, USA; The Lundquist Institute at Harbor-UCLA Medical Center, Torrance, USA
| | - Thomas Harrison
- Centre for Global Health, Institute of Infection and Immunity, St George's University of London, London, UK; Institute of Infectious Disease and Molecular Medicine, University of Cape Town, Cape Town, South Africa
| | - Angela Loyse
- Department of Infection and Immunity, St George's University of London, London, UK
| | - Carol Ruffell
- Drugs for Neglected Diseases Initiative, Los Angeles, USA; Global Antibiotic Research and Development Partnership (GARDP), Cape Town, South Africa
| | - Gilles Van Cutsem
- Doctors Without Borders South Africa, Johannesburg, South Africa; Centre for Infectious Disease and Research, University of Cape Town, Cape Town, South Africa
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7
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Bongomin F, Govender NP, Chakrabarti A, Robert-Gangneux F, Boulware DR, Zafar A, Oladele RO, Richardson MD, Gangneux JP, Alastruey-Izquierdo A, Bazira J, Boyles TH, Sarcarlal J, Nacher M, Obayashi T, Worodria W, Pasqualotto AC, Meya DB, Cheng B, Sriruttan C, Muzoora C, Kambugu A, Rodriguez Tudela JL, Jordan A, Chiller TM, Denning DW. Essential in vitro diagnostics for advanced HIV and serious fungal diseases: international experts' consensus recommendations. Eur J Clin Microbiol Infect Dis 2019; 38:1581-1584. [PMID: 31175479 DOI: 10.1007/s10096-019-03600-4] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Felix Bongomin
- Global Action Fund for Fungal Infections, Rue Le Corbusier 12, 1208, Geneva, Switzerland.,Department of Medical Microbiology and Immunology, Gulu University, Gulu, Uganda
| | - Nelesh P Govender
- National Institute for Communicable Diseases (Centers for Healthcare-Associated Infections, Antimicrobial Resistance and Mycoses), Johannesburg, South Africa.,University of the Witwatersrand, Johannesburg, South Africa
| | | | | | | | | | | | - Malcolm D Richardson
- The University of Manchester, Manchester, UK.,Mycology Reference Centre, Manchester, UK
| | | | - Ana Alastruey-Izquierdo
- Mycology Reference Laboratory, National Centre for Microbiology, Instituto de Salud Carlos III, Madrid, Spain
| | - Joel Bazira
- Mbarara University of Science and Technology, Mbarara, Uganda
| | - Tom H Boyles
- University of the Witwatersrand, Johannesburg, South Africa
| | - Jahit Sarcarlal
- Department of Microbiology, Faculty of Medicine , University Eduardo Mondlane, Maputo, Mozambique
| | | | | | - William Worodria
- College of Health Sciences, Makerere University, Kampala, Uganda
| | | | - David B Meya
- College of Health Sciences, Makerere University, Kampala, Uganda.,Infectious Disease Institute, Makerere University, Kampala, Uganda
| | - Ben Cheng
- Global Health Impact Group, Atlanta, USA
| | - Charlotte Sriruttan
- National Institute for Communicable Diseases (Centers for Healthcare-Associated Infections, Antimicrobial Resistance and Mycoses), Johannesburg, South Africa
| | - Conrad Muzoora
- Mbarara University of Science and Technology, Mbarara, Uganda
| | - Andrew Kambugu
- College of Health Sciences, Makerere University, Kampala, Uganda.,Infectious Disease Institute, Makerere University, Kampala, Uganda
| | | | | | - Tom M Chiller
- Centers for Disease Control and Prevention, Atlanta, USA
| | - David W Denning
- Global Action Fund for Fungal Infections, Rue Le Corbusier 12, 1208, Geneva, Switzerland. .,The University of Manchester, Manchester, UK.
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8
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Selb R, Fuchs V, Graf B, Hamprecht A, Hogardt M, Sedlacek L, Schwarz R, Idelevich EA, Becker SL, Held J, Küpper-Tetzel CP, McCormick-Smith I, Heckmann D, Gerkrath J, Han CO, Wilmes D, Rickerts V. Molecular typing and in vitro resistance of Cryptococcus neoformans clinical isolates obtained in Germany between 2011 and 2017. Int J Med Microbiol 2019; 309:151336. [PMID: 31444102 DOI: 10.1016/j.ijmm.2019.151336] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [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: 05/07/2019] [Revised: 07/05/2019] [Accepted: 07/31/2019] [Indexed: 02/07/2023] Open
Abstract
Cryptococcosis is a fungal infection of the central nervous system predominantly caused by Cryptococcus neoformans in immunocompromised patients. In several countries worldwide, up to 50% of isolates show in vitro resistance to clinically used antifungals including fluconazole. No prospective data on susceptibility to antifungal drugs are available for Germany. In this study, we characterised all C. neoformans isolates collected from individual patients' samples at the German reference laboratory for cryptococcosis 2011 and 2017 (n = 133) by multi-locus sequence typing and phenotypic drug susceptibility testing. We identified serotype A/genotype VNI isolates belonging to clonal complexes previously described from Europe, Africa, Asia and South America as the most prevalent agents of cryptococcosis in Germany. Overall, we observed minimal inhibitory concentrations (MICs) above the epidemiological cut-offs (ECVs) in 1.6% of isolates regarding fluconazole and 2.3% of isolates regarding 5-flucytosine. Here, two C. neoformans var. grubii isolates displayed decreased drug susceptibility to fluconazole, one of them additionally to 5-flucytosine. We also found 5-flucytosine MICs above the ECV for two C. neoformans var. neoformans isolates. We identified a novel mutation in the ERG11 gene which might be associated with the elevated fluconazole MIC in one of the isolates. The clinical importance of the detected in vitro resistance is documented by patient histories showing relapsed infection or primary fatal disease. Of note, sertraline demonstrated antifungal activity comparable to previous reports. Systematic collection of susceptibility data in combination with molecular typing of C. neoformans is important to comprehensively assess the spread of isolates and to understand their drug resistance patterns.
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Affiliation(s)
- Regina Selb
- European Public Health Microbiology Programme (EUPHEM), European Centre for Disease Prevention and Control (ECDC), Stockholm, Sweden; Department of Infectious Diseases, Unit for Mycotic and Parasitic Agents and Mycobacteria, Robert Koch-Institute, Berlin, Germany
| | - Vidmante Fuchs
- Department of Infectious Diseases, Unit for Mycotic and Parasitic Agents and Mycobacteria, Robert Koch-Institute, Berlin, Germany
| | - Barbara Graf
- Labor Berlin - Charité Vivantes GmbH, Berlin, Germany
| | - Axel Hamprecht
- Institute for Medical Microbiology, Immunology and Hygiene, University Hospital of Cologne, Cologne, Germany
| | - Michael Hogardt
- Institute of Medical Microbiology and Infection Control, Goethe University Hospital, Frankfurt/Main, Germany
| | - Ludwig Sedlacek
- Institute for Medical Microbiology and Hospital Epidemiology, Hannover Medical School, Hannover, Germany
| | - Roman Schwarz
- MVZ Dr. Stein and colleagues, Moenchengladbach, Germany
| | - Evgeny A Idelevich
- Institute of Medical Microbiology, University Hospital Muenster, Muenster, Germany
| | - Sören L Becker
- Institute of Medical Microbiology and Hygiene, Saarland University, Homburg, Germany
| | - Jürgen Held
- Mikrobiologisches Institut - Klinische Mikrobiologie, Immunologie und Hygiene, Universitätsklinikum Erlangen and Friedrich-Alexander-Universität Erlangen-Nürnberg, Germany
| | - Claus P Küpper-Tetzel
- Medical Department II, Infectious Diseases Unit, Goethe-University Hospital Frankfurt, Frankfurt, Germany
| | - Ilka McCormick-Smith
- Department of Infectious Diseases, Unit for Mycotic and Parasitic Agents and Mycobacteria, Robert Koch-Institute, Berlin, Germany
| | - Daniela Heckmann
- Department of Infectious Diseases, Unit for Mycotic and Parasitic Agents and Mycobacteria, Robert Koch-Institute, Berlin, Germany
| | - Jasmin Gerkrath
- Department of Infectious Diseases, Unit for Mycotic and Parasitic Agents and Mycobacteria, Robert Koch-Institute, Berlin, Germany
| | - Chang-Ok Han
- Department of Infectious Diseases, Unit for Mycotic and Parasitic Agents and Mycobacteria, Robert Koch-Institute, Berlin, Germany
| | - Dunja Wilmes
- Department of Infectious Diseases, Unit for Mycotic and Parasitic Agents and Mycobacteria, Robert Koch-Institute, Berlin, Germany
| | - Volker Rickerts
- Department of Infectious Diseases, Unit for Mycotic and Parasitic Agents and Mycobacteria, Robert Koch-Institute, Berlin, Germany.
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9
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Abstract
The recent development of highly sensitive and specific point-of-care tests has made it possible to diagnose HIV-associated cryptococcal meningitis within minutes. However, diagnostic advances have not been matched by new antifungal drugs and treatment still relies on old off-patent drugs: amphotericin B, flucytosine and fluconazole. Cryptococcal meningitis treatment is divided in three phases: induction, consolidation and maintenance. The induction phase, aimed at drastically reducing cerebrospinal fluid fungal burden, is key for patient survival. The major challenge in cryptococcal meningitis management has been the optimisation of induction phase treatment using the limited number of available medications, and major progress has recently been made. In this review, we summarise data from key trials which form the basis of current treatment recommendations for HIV-associated cryptococcal meningitis.
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Affiliation(s)
- Timothée Boyer-Chammard
- Molecular Mycology Unit and National Reference Centre for Invasive Mycoses, UMR2000, CNRS, Institut Pasteur, Paris, France
- Université de Paris, Necker Pasteur Center for Infectious Diseases and Tropical Medicine, Hôpital Necker Enfants malades, AP-HP, IHU Imagine, Paris, France
| | | | - Alexandre Alanio
- Molecular Mycology Unit and National Reference Centre for Invasive Mycoses, UMR2000, CNRS, Institut Pasteur, Paris, France
- University Paris Diderot, Sorbonne Paris Cité, Université de Paris, Laboratory of Parasitology-Mycology, Saint-Louis Hospital, APHP, Paris, France
| | - Joseph N. Jarvis
- Department of Clinical Research, Faculty of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, London, UK
- Botswana Harvard AIDS Institute Partnership, Gaborone, Botswana
| | - Thomas S. Harrison
- Institute of Infection and Immunity, St. George’s University of London, London, UK
| | - Olivier Lortholary
- Molecular Mycology Unit and National Reference Centre for Invasive Mycoses, UMR2000, CNRS, Institut Pasteur, Paris, France
- Université de Paris, Necker Pasteur Center for Infectious Diseases and Tropical Medicine, Hôpital Necker Enfants malades, AP-HP, IHU Imagine, Paris, France
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Król J, Nawrot U, Bartoszewicz M. Activity of base analogues (5-fluorouracil, 5-flucytosine) against planktonic cells and mature biofilm of Candida yeast. Effect of combination with folinic acid. J Mycol Med 2019; 29:147-153. [PMID: 31023592 DOI: 10.1016/j.mycmed.2019.04.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [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: 01/15/2019] [Revised: 03/15/2019] [Accepted: 04/09/2019] [Indexed: 12/22/2022]
Abstract
BACKGROUND The increasing number of Candida infections, especially those caused by non-C. albicans species and resistant strains, is a serious medical problem. OBJECTIVES In this study, the antifungal activity of base analogues, 5-flucytosine (5-FC) and 5-fluorouracil (5-FU), was tested against planktonic cells as well as against mature biofilm. METHODS Tests were performed according the EUCAST methodology. Antibiofilm effectiveness of tested drugs was determined by the crystal violet staining method. The cytotoxicity assays was performed according to the ISO 10993-5 norm. RESULTS 5-FC and 5-FU were effective against fifteen fluconazole resistant Candida glabrata strains with an average minimal inhibitory concentration (MIC) of 0.152mg/L and 0.39mg/L, respectively. Folinic acid (folinate- e.g., leucovorin) is a common drug used in oncology simultaneously with 5-FU. In our tests folinate was able to lower MIC for 5-FC from 0.152 to 0.058mg/L (P<0.05). In the biofilm assay 5-FU and 5-FC alone did not induce any changes in the biomass of mature biofilm. Addition of folinate to each base analogue resulted in up to 90% reduction of biomass. Viability tests show that a concentration of 64mg/L of 5-FC and 5-FU supplemented with folinate can be fungicidal against mature biofilms of some Candida isolates. No cytotoxic effect was found for combination of FOL and 5-FC. CONCLUSION Therapy of 5-FU+folinate is well known in cancer treatment, in this study we reveal the beneficial effect of folinate on antifungal activity of 5-FC as well as the antifungal potential of 5-FU+folinate.
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Affiliation(s)
- J Król
- Department of Pharmaceutical Microbiology and Parasitology, Wroclaw Medical University, Borowska 211a, 50-556 Wrocław, Poland; Cytostatic laboratory, Lower Silesian Oncology Center, Wrocław, Poland.
| | - U Nawrot
- Department of Pharmaceutical Microbiology and Parasitology, Wroclaw Medical University, Borowska 211a, 50-556 Wrocław, Poland
| | - M Bartoszewicz
- Department of Pharmaceutical Microbiology and Parasitology, Wroclaw Medical University, Borowska 211a, 50-556 Wrocław, Poland
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Król J, Nawrot U, Bartoszewicz M. The susceptibility of Candida albicans strains to selected anticancer drugs and flucytosine, relevance of the presence of self-splicing intron in 25S rDNA. J Mycol Med 2019; 29:39-43. [PMID: 30545669 DOI: 10.1016/j.mycmed.2018.11.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2018] [Revised: 11/08/2018] [Accepted: 11/20/2018] [Indexed: 01/21/2023]
Abstract
BACKGROUND The presence of intron 25S allows to divide the Candida albicans species into three subclasses (A, B, C). Intronless and intron harboring strains were reported to have different susceptibility to some drugs, for example to flucytosine and bleomycin. OBJECTIVES In this paper we tested the activity of selected antineoplastic agents, bleomycin, mitomycin C, dactinomycin and fluorouracil as well as antifungal drug flucytosine against 49 C. albicans isolates. Twenty-four strains used in this work contained intron, whereas twenty-five were intronless. METHODS The minimal inhibitory concentrations were determined by the standard microdilution method according to EUCAST. RESULTS All of the tested agents showed antifungal activity. Bleomycin was the strongest with an average minimal inhibitory concentration [MIC] of 15.5mg/L (range: 2-32), while the highest MIC was found for dactinomycin: 172.14mg/L (range: 128-256). Intron harboring strains seem to be more susceptible to bleomycin and flucytosine; however, differences were not statistically significant. The only two strains with elevated MICs for flucytosine were intronless. In contrast, the MIC of 5-fluorouracil was more than two times lower in intron harbouring strains comparing to intronless strains (P-value=0.0124). We found that the addition of folinate significantly increased the susceptibility of intronless strains to fluorouracil. MIC of fluorouracil decreased in this group from 58.24 (range: 16-256) to 16,78mg/L (2-64) after the supplementation of folinate. CONCLUSION The antifungal potential of tested substances, especially the simultaneous action of fluorouracil and folinate (combination used in oncology), is encouraging further research.
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Lawrence DS, Youssouf N, Molloy SLF, Alanio A, Alufandika M, Boulware DR, Boyer-Chammard T, Chen T, Dromer F, Hlupeni A, Hope W, Hosseinipour MC, Kanyama C, Lortholary O, Loyse A, Meya DB, Mosepele M, Muzoora C, Mwandumba HC, Ndhlovu CE, Niessen L, Schutz C, Stott KE, Wang D, Lalloo DG, Meintjes G, Jaffar S, Harrison TS, Jarvis JN. AMBIsome Therapy Induction OptimisatioN (AMBITION): High Dose AmBisome for Cryptococcal Meningitis Induction Therapy in sub-Saharan Africa: Study Protocol for a Phase 3 Randomised Controlled Non-Inferiority Trial. Trials 2018; 19:649. [PMID: 30470259 PMCID: PMC6251219 DOI: 10.1186/s13063-018-3026-4] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [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: 08/16/2018] [Accepted: 10/29/2018] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Cryptococcal meningitis (CM) is a major cause of mortality in HIV programmes in Africa despite increasing access to antiretroviral therapy (ART). Mortality is driven in part by limited availability of amphotericin-based treatment, drug-induced toxicities of amphotericin B deoxycholate and prolonged hospital admissions. A single, high-dose of liposomal amphotericin (L-AmB, Ambisome) on a fluconazole backbone has been reported as non-inferior to 14 days of standard dose L-AmB in reducing fungal burden. This trial examines whether single, high-dose L-AmB given with high-dose fluconazole and flucytosine is non-inferior to a seven-day course of amphotericin B deoxycholate plus flucytosine (the current World Health Organization [WHO] recommended treatment regimen). METHODS An open-label phase III randomised controlled non-inferiority trial conducted in five countries in sub-Saharan Africa: Botswana, Malawi, South Africa, Uganda and Zimbabwe. The trial will compare CM induction therapy with (1) a single dose (10 mg/kg) of L-AmB given with 14 days of fluconazole (1200 mg/day) and flucytosine (100 mg/kg/day) to (2) seven days amphotericin B deoxycholate (1 mg/kg/day) given alongside seven days of flucytosine (100 mg/kg/day) followed by seven days of fluconazole (1200 mg/day). The primary endpoint is all-cause mortality at ten weeks with a non-inferiority margin of 10% and 90% power. Secondary endpoints are early fungicidal activity, proportion of grade III/IV adverse events, pharmacokinetic parameters and pharmacokinetic/pharmacodynamic associations, health service costs, all-cause mortality within the first two and four weeks, all-cause mortality within the first ten weeks (superiority analysis) and rates of CM relapse, immune reconstitution inflammatory syndrome and disability at ten weeks. A total of 850 patients aged ≥ 18 years with a first episode of HIV-associated CM will be enrolled (425 randomised to each arm). All patients will be followed for 16 weeks. All patients will receive consolidation therapy with fluconazole 800 mg/day to complete ten weeks of treatment, followed by fluconazole maintenance and ART as per local guidance. DISCUSSION A safe, sustainable and easy to administer regimen of L-AmB that is non-inferior to seven days of daily amphotericin B deoxycholate therapy may reduce the number of adverse events seen in patients treated with amphotericin B deoxycholate and shorten hospital admissions, providing a highly favourable and implementable alternative to the current WHO recommended first-line treatment. TRIAL REGISTRATION ISRCTN, ISRCTN72509687 . Registered on 13 July 2017.
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Affiliation(s)
- David S. Lawrence
- Department of Clinical Research, Faculty of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, London, UK
- Botswana-Harvard AIDS Institute Partnership, Gaborone, Botswana
| | - Nabila Youssouf
- Department of Clinical Research, Faculty of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, London, UK
- Botswana-Harvard AIDS Institute Partnership, Gaborone, Botswana
| | - Síle L. F. Molloy
- Research Centre for Infection and Immunity, St George’s University of London, London, UK
| | - Alexandre Alanio
- Molecular Mycology Unit and National Reference Centre for Invasive Mycoses, Institut Pasteur, Paris, France
| | - Melanie Alufandika
- Malawi-Liverpool-Wellcome Trust Clinical Research Programme, University of Malawi College of Medicine, Blantyre, Malawi
| | - David R. Boulware
- Infectious Diseases Institute, College of Health Sciences, Makerere University, Kampala, Uganda
- Department of Medicine, University of Minnesota, Minneapolis, MN USA
| | - Timothée Boyer-Chammard
- Molecular Mycology Unit and National Reference Centre for Invasive Mycoses, Institut Pasteur, Paris, France
| | - Tao Chen
- Department of Clinical Sciences and International Public Health, Liverpool School of Tropical Medicine, Liverpool, UK
| | - Francoise Dromer
- Molecular Mycology Unit and National Reference Centre for Invasive Mycoses, Institut Pasteur, Paris, France
| | - Admire Hlupeni
- Department of Medicine, University of Zimbabwe College of Health Sciences, Parirenyatwa Hospital, Harare, Zimbabwe
| | - William Hope
- Department of Molecular and Clinical Pharmacology, University of Liverpool, Liverpool, UK
| | | | - Cecilia Kanyama
- Lilongwe Medical Relief Trust (UNC Project), Lilongwe, Malawi
| | - Oliver Lortholary
- Molecular Mycology Unit and National Reference Centre for Invasive Mycoses, Institut Pasteur, Paris, France
| | - Angela Loyse
- Research Centre for Infection and Immunity, St George’s University of London, London, UK
| | - David B. Meya
- Infectious Diseases Institute, College of Health Sciences, Makerere University, Kampala, Uganda
| | - Mosepele Mosepele
- Botswana-Harvard AIDS Institute Partnership, Gaborone, Botswana
- Department of Internal Medicine, University of Botswana, Gaborone, Botswana
| | - Conrad Muzoora
- Infectious Diseases Institute, College of Health Sciences, Makerere University, Kampala, Uganda
| | - Henry C. Mwandumba
- Malawi-Liverpool-Wellcome Trust Clinical Research Programme, University of Malawi College of Medicine, Blantyre, Malawi
- Department of Clinical Sciences and International Public Health, Liverpool School of Tropical Medicine, Liverpool, UK
| | - Chiratidzo E. Ndhlovu
- Department of Medicine, University of Zimbabwe College of Health Sciences, Parirenyatwa Hospital, Harare, Zimbabwe
| | - Louis Niessen
- Department of Clinical Sciences and International Public Health, Liverpool School of Tropical Medicine, Liverpool, UK
| | - Charlotte Schutz
- Wellcome Centre for Infectious Diseases Research in Africa (CIDRI-Africa), Institute of Infectious Disease and Molecular Medicine, and Department of Medicine, University of Cape Town, Cape Town, South Africa
| | - Katharine E. Stott
- Malawi-Liverpool-Wellcome Trust Clinical Research Programme, University of Malawi College of Medicine, Blantyre, Malawi
- Department of Molecular and Clinical Pharmacology, University of Liverpool, Liverpool, UK
| | - Duolao Wang
- Department of Clinical Sciences and International Public Health, Liverpool School of Tropical Medicine, Liverpool, UK
| | - David G. Lalloo
- Department of Clinical Sciences and International Public Health, Liverpool School of Tropical Medicine, Liverpool, UK
| | - Graeme Meintjes
- Wellcome Centre for Infectious Diseases Research in Africa (CIDRI-Africa), Institute of Infectious Disease and Molecular Medicine, and Department of Medicine, University of Cape Town, Cape Town, South Africa
| | - Shabbar Jaffar
- Department of Clinical Sciences and International Public Health, Liverpool School of Tropical Medicine, Liverpool, UK
| | - Thomas S. Harrison
- Research Centre for Infection and Immunity, St George’s University of London, London, UK
| | - Joseph N. Jarvis
- Department of Clinical Research, Faculty of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, London, UK
- Botswana-Harvard AIDS Institute Partnership, Gaborone, Botswana
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13
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Heo JR, Hwang KA, Kim SU, Choi KC. A Potential Therapy Using Engineered Stem Cells Prevented Malignant Melanoma in Cellular and Xenograft Mouse Models. Cancer Res Treat 2018; 51:797-811. [PMID: 30213181 PMCID: PMC6473263 DOI: 10.4143/crt.2018.364] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2018] [Accepted: 09/12/2018] [Indexed: 12/31/2022] Open
Abstract
PURPOSE In the present study, human neural stem cells (hNSCs) with tumor-tropic behavior were used as drug delivery vehicle to selectively target melanoma. A hNSC line (HB1.F3) was transduced into two types: one expressed only the cytosine deaminase (CD) gene (HB1.F3. CD) and the other expressed both CD and human interferon-β (IFN-β) genes (HB1.F3.CD. IFN-β). Materials and Methods This study verified the tumor-tropic migratory competence of engineered hNSCs on melanoma (A375SM) using a modified Boyden chamber assay in vitro and CM-DiI staining in vivo. The antitumor effect of HB1.F3.CD and HB1.F3.CD.IFN-β on melanoma was also confirmed using an MTT assay in vitro and xenograft mouse models. RESULTS A secreted form of IFN-β from the HB1.F3.CD.IFN-β cells modified the epithelial-mesenchymal transition (EMT) process and metastasis of melanoma. 5-Fluorouracil treatment also accelerated the expression of the pro-apoptotic protein BAX and decelerated the expression of the anti-apoptotic protein Bcl-xL on melanoma cell line. CONCLUSION Our results illustrate that engineered hNSCs prevented malignant melanoma cells from proliferating in the presence of the prodrug, and the form that secreted IFN-β intervened in the EMT process and melanoma metastasis. Hence, neural stem cell-directed enzyme/prodrug therapy is a plausible treatment for malignant melanoma.
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Affiliation(s)
- Jae-Rim Heo
- Laboratory of Biochemistry and Immunology, College of Veterinary Medicine, Chungbuk National University, Cheongju, Korea
| | - Kyung-A Hwang
- Laboratory of Biochemistry and Immunology, College of Veterinary Medicine, Chungbuk National University, Cheongju, Korea
| | - Seung U Kim
- Department of Medicine, Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada
| | - Kyung-Chul Choi
- Laboratory of Biochemistry and Immunology, College of Veterinary Medicine, Chungbuk National University, Cheongju, Korea.,Institute of Life Science and Bio-Engineering, TheraCell Bio & Science, Cheongju, Korea
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14
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Abstract
Invasive fungal diseases cause high morbidity and mortality in an immunocompromised host. Antifungals are the drugs of choice and can be divided into 4 main groups: polyenes, azoles, echinocandins, and pyrimidine analogues. Each class has its specific mechanism of action, spectrum of activity, and pharmacokinetic and side effects. It is important to understand the precise use of the established and new antifungal agents to successfully manage these complex infections in an already tenuous and frail host. This article discusses the main characteristics, clinical uses, and secondary effects of the main antifungals used in clinical practice.
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15
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Park GT, Kim SU, Choi KC. Anti-proliferative Effect of Engineered Neural Stem Cells Expressing Cytosine Deaminase and Interferon-β against Lymph Node-Derived Metastatic Colorectal Adenocarcinoma in Cellular and Xenograft Mouse Models. Cancer Res Treat 2016; 49:79-91. [PMID: 27188205 PMCID: PMC5266401 DOI: 10.4143/crt.2015.503] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2015] [Accepted: 04/17/2016] [Indexed: 12/13/2022] Open
Abstract
Purpose Genetically engineered stem cells may be advantageous for gene therapy against various human cancers due to their inherent tumor-tropic properties. In this study, genetically engineered human neural stem cells (HB1.F3) expressing Escherichia coli cytosine deaminase (CD) (HB1.F3.CD) and human interferon-β (IFN-β) (HB1.F3.CD.IFN-β) were employed against lymph node–derived metastatic colorectal adenocarcinoma. Materials and Methods CD can convert a prodrug, 5-fluorocytosine (5-FC), to active 5-fluorouracil, which inhibits tumor growth through the inhibition of DNA synthesis,while IFN-β also strongly inhibits tumor growth by inducing the apoptotic process. In reverse transcription polymerase chain reaction analysis, we confirmed that HB1.F3.CD cells expressed the CD gene and HB1.F3.CD.IFN-β cells expressed both CD and IFN-β genes. Results In results of a modified trans-well migration assay, HB1.F3.CD and HB1.F3.CD.IFN-β cells selectively migrated toward SW-620, human lymph node–derived metastatic colorectal adenocarcinoma cells. The viability of SW-620 cells was significantly reduced when co-cultured with HB1.F3.CD or HB1.F3.CD.IFN-β cells in the presence of 5-FC. In addition, it was found that the tumor-tropic properties of these engineered human neural stem cells (hNSCs) were attributed to chemoattractant molecules including stromal cell-derived factor 1, c-Kit, urokinase receptor, urokinase-type plasminogen activator, and C-C chemokine receptor type 2 secreted by SW-620 cells. In a xenograft mouse model, treatment with hNSC resulted in significantly inhibited growth of the tumor mass without virulent effects on the animals. Conclusion The current results indicate that engineered hNSCs and a prodrug treatment inhibited the growth of SW-620 cells. Therefore, hNSC therapy may be a clinically effective tool for the treatment of lymph node metastatic colorectal cancer.
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Affiliation(s)
- Geon-Tae Park
- Laboratory of Biochemistry and Immunology, College of Veterinary Medicine, Chungbuk National University, Cheongju, Korea
| | - Seung U Kim
- Department of Medicine, Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada
| | - Kyung-Chul Choi
- Laboratory of Biochemistry and Immunology, College of Veterinary Medicine, Chungbuk National University, Cheongju, Korea.,TheraCell Bio & Science, Cheongju, Korea
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Abstract
Funguria, and particularly candiduria, is an increasingly common problem encountered by the practicing urologist and is associated with high-acuity care, indwelling catheters, diabetes mellitus, antibiotic and steroid use, and urinary tract disease. In most cases, candiduria is asymptomatic and follows a benign clinical course with antifungal therapy only required in symptomatic or high-risk cases, because spontaneous resolution is common in patients with asymptomatic colonization. Rarely, invasive infections can occur (such as fungus balls or renal abscesses) and may require percutaneous and endoscopic interventions. This article highlights the workup and treatment of funguria and its related urologic manifestations.
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Duclos G, Dumont JC, Ranque S, Zieleskiewicz L, Bruder N. [Meningitis to Candida albicans at the adult, use of the new diagnosis methods]. ACTA ACUST UNITED AC 2014; 33:533-5. [PMID: 25127852 DOI: 10.1016/j.annfar.2014.07.002] [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] [Received: 03/26/2014] [Accepted: 07/09/2014] [Indexed: 11/15/2022]
Abstract
Candida albicans or non-albicans are a frequent source of infection but seldom displayed in cerebrospinal fluid although responsible of an important number of nosocomial meningitis. Diagnosis is difficult which often delays treatment, which in turn hinders prognostic. This clinical case shows a patient afflicted with a deadly C. albicans meningitis and allows us to focus on new diagnostic tools and advice against this infection.
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Affiliation(s)
- G Duclos
- Département d'anesthésie-réanimation, hôpital Nord, chemin des Bourrelly, 13015 Marseille, France.
| | - J-C Dumont
- Département d'anesthésie-réanimation, hôpital de la Timone, 264, rue Saint-Pierre, 13005 Marseille, France
| | - S Ranque
- Laboratoire de mycologie médicale, hôpital de la Timone, université Aix-Marseille - Timone, 264, rue Saint-Pierre, 13005 Marseille, France
| | - L Zieleskiewicz
- Département d'anesthésie-réanimation, hôpital Nord, chemin des Bourrelly, 13015 Marseille, France
| | - N Bruder
- Département d'anesthésie-réanimation, hôpital de la Timone, 264, rue Saint-Pierre, 13005 Marseille, France
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Storm L, Lausch KR, Arendrup MC, Mortensen KL, Petersen E. Vertebral infection with Candida albicans failing caspofungin and fluconazole combination therapy but successfully treated with high dose liposomal amphotericin B and flucytosine. Med Mycol Case Rep 2014; 6:6-9. [PMID: 25379389 PMCID: PMC4216330 DOI: 10.1016/j.mmcr.2014.07.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2014] [Revised: 06/16/2014] [Accepted: 07/01/2014] [Indexed: 11/01/2022] Open
Abstract
A patient with Candida spondylitis failed two weeks of fluconazole combined with caspofungin, and the infection relapsed despite six weeks of liposomal amphotericin B followed by two months of fluconazole. Six months therapy with high dose liposomal amphotericin B combined with flucytosine effectively cured the patient.
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Affiliation(s)
- Line Storm
- Department of Infectious Diseases, Aarhus University Hospital Skejby, 100 Brendstrupgaardsvej, 8200 Aarhus N, Denmark
| | - Karen R Lausch
- Department of Infectious Diseases, Aarhus University Hospital Skejby, 100 Brendstrupgaardsvej, 8200 Aarhus N, Denmark
| | - Maiken C Arendrup
- Unit of Mycology, Department of Microbiology and Infection Control, Statens Serum Institut, 5 Artillerivej, 2300 Copenhagen S, Denmark
| | - Klaus L Mortensen
- Department of Infectious Diseases, Aarhus University Hospital Skejby, 100 Brendstrupgaardsvej, 8200 Aarhus N, Denmark
| | - Eskild Petersen
- Department of Infectious Diseases, Aarhus University Hospital Skejby, 100 Brendstrupgaardsvej, 8200 Aarhus N, Denmark
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Wisplinghoff H, Ebbers J, Geurtz L, Stefanik D, Major Y, Edmond MB, Wenzel RP, Seifert H. Nosocomial bloodstream infections due to Candida spp. in the USA: species distribution, clinical features and antifungal susceptibilities. Int J Antimicrob Agents 2013; 43:78-81. [PMID: 24182454 DOI: 10.1016/j.ijantimicag.2013.09.005] [Citation(s) in RCA: 198] [Impact Index Per Article: 18.0] [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: 04/27/2013] [Revised: 08/31/2013] [Accepted: 09/03/2013] [Indexed: 10/26/2022]
Abstract
Candida spp. are among the most frequent nosocomial pathogens, contributing significantly to morbidity and mortality. Longitudinal data on the epidemiology of Candida bloodstream infections (BSIs) are still limited. Isolates and clinical data from 1218 episodes of Candida BSI were prospectively collected from patients in 52 hospitals in the USA between 1998 and 2006. Susceptibilities to amphotericin B, flucytosine, fluconazole, posaconazole, voriconazole, anidulafungin, caspofungin and micafungin were determined for 1077 Candida isolates by the CLSI reference broth microdilution method using the recently published species-specific clinical breakpoints. Candida albicans was the most prevalent species (50.7%), followed by Candida parapsilosis (17.4%), Candida glabrata (16.7%) and Candida tropicalis (10.2%). The prevalence of non-albicans Candida spp. increased over time. Patients had a mean age of 51 years and a mean length of hospital stay prior to BSI of 22 days. The main underlying conditions were gastrointestinal (20.1%) and pulmonary (13.0%) diseases. Intravenous catheters (19.1%) and the urinary tract (8.0%) were the most frequently determined likely sources, whilst in the majority of patients (61.1%) no source could be identified. Overall mortality was 38.1%. Of the isolates studied, 0.8% of C. albicans, 100.0% of C. glabrata, 2.9% of C. parapsilosis and 4.9% of C. tropicalis were non-susceptible to fluconazole, and 0.6% of C. albicans, 5.0% of Candida krusei, 7.6% of C. parapsilosis and 9.8% of C. tropicalis were non-susceptible to voriconazole. All echinocandins showed good activity against most Candida spp., including the majority of C. parapsilosis isolates, but only 38.1% of C. glabrata tested susceptible to caspofungin.
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Affiliation(s)
- Hilmar Wisplinghoff
- Institute for Medical Microbiology, Immunology and Hygiene, University of Cologne, Goldenfelsstrasse 19-21, 50935 Cologne, Germany; Division of Infectious Diseases, Department of Internal Medicine, Virginia Commonwealth University, Medical Center Box 980019, Richmond, VA 23298-0019, USA
| | - Jenny Ebbers
- Institute for Medical Microbiology, Immunology and Hygiene, University of Cologne, Goldenfelsstrasse 19-21, 50935 Cologne, Germany
| | - Lea Geurtz
- Institute for Medical Microbiology, Immunology and Hygiene, University of Cologne, Goldenfelsstrasse 19-21, 50935 Cologne, Germany
| | - Danuta Stefanik
- Institute for Medical Microbiology, Immunology and Hygiene, University of Cologne, Goldenfelsstrasse 19-21, 50935 Cologne, Germany
| | - Yvette Major
- Division of Infectious Diseases, Department of Internal Medicine, Virginia Commonwealth University, Medical Center Box 980019, Richmond, VA 23298-0019, USA
| | - Michael B Edmond
- Division of Infectious Diseases, Department of Internal Medicine, Virginia Commonwealth University, Medical Center Box 980019, Richmond, VA 23298-0019, USA
| | - Richard P Wenzel
- Division of Infectious Diseases, Department of Internal Medicine, Virginia Commonwealth University, Medical Center Box 980019, Richmond, VA 23298-0019, USA
| | - Harald Seifert
- Institute for Medical Microbiology, Immunology and Hygiene, University of Cologne, Goldenfelsstrasse 19-21, 50935 Cologne, Germany.
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Abstract
Cladophialophora bantiana is a dematiaceous mold with a predilection for causing central nervous system infection, particularly in normal hosts. A case involving a 79-year-old immunocompetent woman who presented with left-sided weakness and a ring-enhancing brain lesion is reported. She underwent surgical excision, which revealed a brain abscess due to C bantiana. The patient was treated with liposomal amphotericin B for several weeks, then switched to voriconazole and flucytosine, but eventually succumbed to the infection. Therapy is not standardized for this rare mycosis, and mortality remains high, even in immunocompetent patients. Additional studies to understand the pathogenesis of this infection and to improve outcomes are needed.
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Veeravagu A, Ludwig C, Camara-Quintana JQ, Jiang B, Lad N, Shuer L. Fungal infection of a ventriculoperitoneal shunt: histoplasmosis diagnosis and treatment. World Neurosurg 2012; 80:222.e5-13. [PMID: 23247021 DOI: 10.1016/j.wneu.2012.12.016] [Citation(s) in RCA: 8] [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] [Received: 07/29/2010] [Revised: 09/12/2012] [Accepted: 12/11/2012] [Indexed: 01/15/2023]
Abstract
BACKGROUND Histoplasmosis is a fungal disease caused by Histoplasma capsulatum, commonly found in the Americas, and Histoplasma duboisii, located in Africa. In the United States, H. capsulatum is prevalent in the Ohio and Mississippi river valleys. In rare circumstances, central nervous system (CNS) histoplasmosis infection can be caused by shunt placement. We present a case report of a 45-year-old woman in whom CNS histoplasmosis developed after having a ventriculoperitoneal (VP) shunt placed for communicating hydrocephalus. A review of the literature on fungal infections after CNS shunt placement as well as treatment options for this subset of patients was undertaken. METHODS The PubMed database current to 1958 was filtered and limited to English-language articles. Fifty-eight articles were selected for review based on evidence of information regarding the fungal organism responsible for shunt infection, symptoms, treatment, and/or outcomes. Also included in this review is our case study. RESULTS A thorough analysis of the PubMed database revealed 58 reported cases of CNS shunt-related fungal infections in the English-language medical literature as well as 7 therapeutic agents used to treat patients in whom postshunt fungal infections developed. CONCLUSIONS We describe the steps in diagnosis of histoplasmosis after shunt placement, provide an effective therapeutic regimen, and review the present understanding of CNS fungal infections. The medical literature was surveyed to compare and analyze various CNS fungal infections that can arise from shunt placement as well as treatments rendered.
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Affiliation(s)
- Anand Veeravagu
- Department of Neurosurgery, Stanford University School of Medicine, Stanford, California, USA
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Jung SI, Shin JH, Choi HJ, Ju MY, Kim SH, Lee WG, Park YJ, Lee K. Antifungal susceptibility to amphotericin B, fluconazole, voriconazole, and flucytosine in Candida bloodstream isolates from 15 tertiary hospitals in Korea. Ann Lab Med 2012; 32:426-8. [PMID: 23130342 PMCID: PMC3486937 DOI: 10.3343/alm.2012.32.6.426] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2012] [Revised: 06/28/2012] [Accepted: 09/10/2012] [Indexed: 11/24/2022] Open
Abstract
The in vitro antifungal susceptibility of 636 Candida bloodstream isolates collected from 15 tertiary hospitals in Korea was determined using the Vitek-2 yeast susceptibility system (bioMérieux, France). Overall susceptibility rates were 98.1%, 95.9%, 99.1%, and 97.3% for amphotericin B, fluconazole, voriconazole, and flucytosine, respectively. The results show that the rates of resistance to 4 antifungal drugs remain low among Candida bloodstream isolates in Korea.
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Affiliation(s)
- Sook-In Jung
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Korea
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Samra T, Yadav A, Banerjee N, Pawar M, Deepak D. Flucytosine for treatment of Candida albicans in H1N1-positive patient. Indian J Pharmacol 2011; 42:318-9. [PMID: 21206626 PMCID: PMC2959217 DOI: 10.4103/0253-7613.70398] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/12/2010] [Revised: 06/16/2010] [Accepted: 07/06/2010] [Indexed: 11/15/2022] Open
Abstract
A 17-year-old H1N1-positive patient was successfully extubated after 25 days of ventilatory support for treatment of viral pneumonia which was complicated by empyema thoracis due to Candida albicans. Hematogenous spread was suspected as simultaneous culture of ascitic fluid identified Candida species sensitive to flucytosine but resistant to amphotericin B and azole group of antifungals. Monotherapy with flucytosine led to clinical and radiological improvement.
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Affiliation(s)
- Tanvir Samra
- Department of Anaesthesia and Intensive Care, Dr Ram Manohar Lohia Hospital, Baba Kharak Singh Marg, Connaught Place, New Delhi - 110 001, India
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