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Zhang Y, Quan Y, Wang D, Cassady K, Zou W, Xiong J, Yao H, Deng X, Wang P, Yang S, Zhang X, Feng Y. Optimizing the therapeutic window of sirolimus by monitoring blood concentration for the treatment of immune thrombocytopenia. Platelets 2023; 34:2277831. [PMID: 38050853 DOI: 10.1080/09537104.2023.2277831] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Accepted: 10/26/2023] [Indexed: 12/07/2023]
Abstract
Previous studies have demonstrated that sirolimus (SRL) is an effective agent for the treatment of refractory/relapsed (R/R) ITP. However, the therapeutic window of sirolimus in the treatment of ITP has not been established. As the toxicity of sirolimus increases with higher blood concentrations, it is crucial to determine the optimal therapeutic concentration of SRL for the treatment of ITP. Thus, in this study, we used a retrospective cohort of ITP patients treated with sirolimus to propose the therapeutic dosage window for sirolimus. A total of 275 laboratory results of SRL blood concentration from 63 ITP patients treated with SRL were analyzed retrospectively. The ITP patients were divided into five groups based on their SRL blood concentration: 0-4 ng/ml, 4-8 ng/ml, 8-12 ng/ml, 12-16 ng/ml and ≥16 ng/ml. In addition to the SRL blood concentration, platelet counts and adverse events that occurred during the first 6 weeks of SRL treatment were analyzed. These findings were then used to establish the decision matrix tables and ROC curves, which helped identify the therapeutic window of SRL. Based on the values and trends of true-positive rate (TPR) and false-positive rate (FPR) in the ROC curve, patients who achieved a SRL blood concentration of 4-12 ng/ml displayed a higher response rate compared to those with a SRL concentration of 0-4 ng/ml or ≥16ng/ml. Additionally, the response rate was better for patients with a SRL concentration of 8-12 ng/ml compared to 4-8 ng/ml. Adverse events were related to the concentration of SRL; however, there was no significant difference in the incidence of adverse events between the concentrations of 4-8 ng/ml and 8-12 ng/ml (P > .05). Regression analysis suggested that the concentration of SRL correlated with the patient's age, PLT count at the start of SRL administration, and the dose of SRL. It is suggested that the optimal blood concentration of SRL monotherapy for managing ITP is 8-12 ng/ml. This range may achieve a favorable balance between clinical efficacy and the severity of adverse events.
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Affiliation(s)
- Yun Zhang
- Medical Center of Hematology, The Xinqiao Hospital of Army Medical University, Chongqing, China
- Department of Clinical Laboratory, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Yao Quan
- Medical Center of Hematology, The Xinqiao Hospital of Army Medical University, Chongqing, China
| | - Dan Wang
- Medical Center of Hematology, The Xinqiao Hospital of Army Medical University, Chongqing, China
- Department of Hematology, Affiliated Hospital of North Sichuan Medical College, Nanchong, China
| | | | - Wenhang Zou
- Department of Infectious Disease, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Jingkang Xiong
- Medical Center of Hematology, The Xinqiao Hospital of Army Medical University, Chongqing, China
| | - Han Yao
- Medical Center of Hematology, The Xinqiao Hospital of Army Medical University, Chongqing, China
| | - Xiaojuan Deng
- Medical Center of Hematology, The Xinqiao Hospital of Army Medical University, Chongqing, China
| | - Ping Wang
- Medical Center of Hematology, The Xinqiao Hospital of Army Medical University, Chongqing, China
| | - Shijie Yang
- Medical Center of Hematology, The Xinqiao Hospital of Army Medical University, Chongqing, China
| | - Xi Zhang
- Medical Center of Hematology, The Xinqiao Hospital of Army Medical University, Chongqing, China
| | - Yimei Feng
- Medical Center of Hematology, The Xinqiao Hospital of Army Medical University, Chongqing, China
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Navarro M, Allemang-Trivalle A, Leducq S, Jonville-Bera AP, Maurier A, Zejli T, Edée AE, Harchaoui E, Giraudeau B, Maruani A. Indication for a Pneumocystis Prophylaxis Therapy in Patients with Vascular Anomalies Treated with PIK3/AKT/mTOR Pathway Inhibitors: Experts' Opinion and Systematic Review from the Literature. Dermatology 2023; 239:942-951. [PMID: 37793356 DOI: 10.1159/000533675] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Accepted: 08/14/2023] [Indexed: 10/06/2023] Open
Abstract
BACKGROUND Vascular anomalies (VAs) are increasingly being treated with PI3K/AKT/mTOR pathway inhibitors. These drugs have immunosuppressive properties and thus theoretically overexpose patients to opportunistic infections, especially Pneumocystis jirovecii pneumonia (PJP). PJP prophylaxis use lacks consensus. We aimed to investigate the prevalence of PJP in patients receiving mTOR/PI3K/AKT inhibitors for VAs and determine any indication for pneumocystis prophylaxis in this population. METHODS The study was conducted in 2 parts: (1) we sent a survey to a panel of international experts of VAs asking about their use of pneumocystis prophylaxis drugs and (2) we performed a systematic review of the literature of all published cases of patients receiving these drugs for VA to estimate the prevalence of PJP in this population. RESULTS Answers from 68 experts were analyzed: 21 (30.9%) answered they always add PJP prophylaxis when prescribing mTOR inhibitors, 20 (29.4%) case-by-case, and 27 (39.7%) never. For the systematic review, among 3,053 reports screened, 217 were included involving 1,189 patients (1,143 received sirolimus, 38 everolimus, 4 alpelisib, 4 miransertib). Among the 1,189 cases, 2 (0.2%) PJP were reported: one under sirolimus and one under everolimus. Thus, the prevalence of PJP was estimated at 0.88 cases/1,000 patients under sirolimus (95% CI: -0.84 to 2.59) and 26.31 cases/1,000 under everolimus (95% CI: -24.58 to 77.18). Patients with PJP never received prophylaxis drugs. We found no PJP cases under alpelisib and miransertib. PJP prophylaxis was given in 218 (18.3%) cases, more frequently for children (91.3 vs. 77.2% in the non-prophylaxis group, p = 0.012), mostly trimethoprim-sulfamethoxazole (186 patients, 85.3%). CONCLUSION Our study shows that even if PJP is a rare event, it may occur in patients with VAs treated with an mTOR inhibitor. Although our results cannot allow for revising guidelines, prophylaxis with TMP-SMX might be appropriate for a subgroup of patients with risk factors for PJP.
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Affiliation(s)
- Maxime Navarro
- CHRU Tours, Department of Dermatology, Unit of Pediatric dermatology, Tours, France
- Reference Center for Genodermatoses and Rare Skin Diseases (MAGEC-Tours), Tours, France
| | | | - Sophie Leducq
- CHRU Tours, Department of Dermatology, Unit of Pediatric dermatology, Tours, France
- Reference Center for Genodermatoses and Rare Skin Diseases (MAGEC-Tours), Tours, France
- University of Tours, University of Nantes, INSERM 1246-SPHERE, Tours, France
| | - Annie-Pierre Jonville-Bera
- University of Tours, University of Nantes, INSERM 1246-SPHERE, Tours, France
- CHRU Tours, Department of Clinical Pharmacology, Regional Pharmacovigilance Center, Tours, France
| | - Anaïs Maurier
- CHRU Tours, Department of Clinical Pharmacology, Regional Pharmacovigilance Center, Tours, France
| | - Tarik Zejli
- CHRU Tours, Clinical Investigation Center of Tours, INSERM 1415, Bretonneau Hospital, Tours, France
| | - Afi-Emiliène Edée
- Reference Center for Genodermatoses and Rare Skin Diseases (MAGEC-Tours), Tours, France
| | - Emilie Harchaoui
- CHRU Tours, Department of Dermatology, Unit of Pediatric dermatology, Tours, France
- University of Tours, University of Nantes, INSERM 1246-SPHERE, Tours, France
| | - Bruno Giraudeau
- University of Tours, University of Nantes, INSERM 1246-SPHERE, Tours, France
- CHRU Tours, Clinical Investigation Center of Tours, INSERM 1415, Bretonneau Hospital, Tours, France
| | - Annabel Maruani
- CHRU Tours, Department of Dermatology, Unit of Pediatric dermatology, Tours, France
- Reference Center for Genodermatoses and Rare Skin Diseases (MAGEC-Tours), Tours, France
- University of Tours, University of Nantes, INSERM 1246-SPHERE, Tours, France
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Molecular and therapeutic insights of rapamycin: a multi-faceted drug from Streptomyces hygroscopicus. Mol Biol Rep 2023; 50:3815-3833. [PMID: 36696023 PMCID: PMC9875782 DOI: 10.1007/s11033-023-08283-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Accepted: 01/13/2023] [Indexed: 01/26/2023]
Abstract
The advancement in pharmaceutical research has led to the discovery and development of new combinatorial life-saving drugs. Rapamycin is a macrolide compound produced from Streptomyces hygroscopicus. Rapamycin and its derivatives are one of the promising sources of drug with broad spectrum applications in the medical field. In recent times, rapamycin has gained significant attention as of its activity against cytokine storm in COVID-19 patients. Rapamycin and its derivatives have more potency when compared to other prevailing drugs. Initially, it has been used exclusively as an anti-fungal drug. Currently rapamycin has been widely used as an immunosuppressant. Rapamycin is a multifaceted drug; it has anti-cancer, anti-viral and anti-aging potentials. Rapamycin has its specific action on mTOR signaling pathway. mTOR has been identified as a key regulator of different pathways. There will be an increased demand for rapamycin, because it has lesser adverse effects when compared to steroids. Currently researchers are focused on the production of effective rapamycin derivatives to combat the growing demand of this wonder drug. The main focus of the current review is to explore the origin, development, molecular mechanistic action, and the current therapeutic aspects of rapamycin. Also, this review article revealed the potential of rapamycin and the progress of rapamycin research. This helps in understanding the exact potency of the drug and could facilitate further studies that could fill in the existing knowledge gaps. The study also gathers significant data pertaining to the gene clusters and biosynthetic pathways involved in the synthesis and production of this multi-faceted drug. In addition, an insight into the mechanism of action of the drug and important derivatives of rapamycin has been expounded. The fillings of the current review, aids in understanding the underlying molecular mechanism, strain improvement, optimization and production of rapamycin derivatives.
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Kilmister EJ, Tan ST. Insights Into Vascular Anomalies, Cancer, and Fibroproliferative Conditions: The Role of Stem Cells and the Renin-Angiotensin System. Front Surg 2022; 9:868187. [PMID: 35574555 PMCID: PMC9091963 DOI: 10.3389/fsurg.2022.868187] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Accepted: 03/22/2022] [Indexed: 12/15/2022] Open
Abstract
Cells exhibiting embryonic stem cell (ESC) characteristics have been demonstrated in vascular anomalies (VAs), cancer, and fibroproliferative conditions, which are commonly managed by plastic surgeons and remain largely unsolved. The efficacy of the mTOR inhibitor sirolimus, and targeted therapies that block the Ras/BRAF/MEK/ERK1/2 and PI3KCA/AKT/mTOR pathways in many types of cancer and VAs, further supports the critical role of ESC-like cells in the pathogenesis of these conditions. ESC-like cells in VAs, cancer, and fibroproliferative conditions express components of the renin-angiotensin system (RAS) – a homeostatic endocrine signaling cascade that regulates cells with ESC characteristics. ESC-like cells are influenced by the Ras/BRAF/MEK/ERK1/2 and PI3KCA/AKT/mTOR pathways, which directly regulate cellular proliferation and stemness, and interact with the RAS at multiple points. Gain-of-function mutations affecting these pathways have been identified in many types of cancer and VAs, that have been treated with targeted therapies with some success. In cancer, the RAS promotes tumor progression, treatment resistance, recurrence, and metastasis. The RAS modulates cellular invasion, migration, proliferation, and angiogenesis. It also indirectly regulates ESC-like cells via its direct influence on the tissue microenvironment and by its interaction with the immune system. In vitro studies show that RAS inhibition suppresses the hallmarks of cancer in different experimental models. Numerous epidemiological studies show a reduced incidence of cancer and improved survival outcomes in patients taking RAS inhibitors, although some studies have shown no such effect. The discovery of ESC-like cells that express RAS components in infantile hemangioma (IH) underscores the paradigm shift in the understanding of its programmed biologic behavior and accelerated involution induced by β-blockers and angiotensin-converting enzyme inhibitors. The findings of SOX18 inhibition by R-propranolol suggests the possibility of targeting ESC-like cells in IH without β-adrenergic blockade, and its associated side effects. This article provides an overview of the current knowledge of ESC-like cells and the RAS in VAs, cancer, and fibroproliferative conditions. It also highlights new lines of research and potential novel therapeutic approaches for these unsolved problems in plastic surgery, by targeting the ESC-like cells through manipulation of the RAS, its bypass loops and converging signaling pathways using existing low-cost, commonly available, and safe oral medications.
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Affiliation(s)
| | - Swee T. Tan
- Gillies McIndoe Research Institute, Wellington, New Zealand
- Wellington Regional Plastic, Maxillofacial & Burns Unit, Hutt Hospital, Lower Hutt, New Zealand
- Department of Surgery, The Royal Melbourne Hospital, The University of Melbourne, Parkville, VIC, Australia
- *Correspondence: Swee T. Tan
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Ragab IA, Abdel-Kader SM, AbouZeid AA, Mohammad SA, Abdel Raheem HG, Aly NH. A successful tale of sirolimus treatment in refractory vascular tumors. JOURNAL OF PEDIATRIC SURGERY CASE REPORTS 2022. [DOI: 10.1016/j.epsc.2022.102180] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
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Maruani A, Tavernier E, Boccara O, Mazereeuw-Hautier J, Leducq S, Bessis D, Guibaud L, Vabres P, Carmignac V, Mallet S, Barbarot S, Chiaverini C, Droitcourt C, Bursztejn AC, Lengellé C, Woillard JB, Herbreteau D, Le Touze A, Joly A, Léauté-Labrèze C, Powell J, Bourgoin H, Gissot V, Giraudeau B, Morel B. Sirolimus (Rapamycin) for Slow-Flow Malformations in Children: The Observational-Phase Randomized Clinical PERFORMUS Trial. JAMA Dermatol 2021; 157:1289-1298. [PMID: 34524406 DOI: 10.1001/jamadermatol.2021.3459] [Citation(s) in RCA: 47] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
Importance Sirolimus is increasingly being used to treat various vascular anomalies, although evidence of its efficacy is lacking. Objective To assess the efficacy and safety of sirolimus for children with slow-flow vascular malformations to better delineate the indications for treatment. Design, Setting and Participants This multicenter, open-label, observational-phase randomized clinical trial included 59 children aged 6 to 18 years with a slow-flow vascular malformation who were recruited between September 28, 2015, and March 22, 2018, in 11 French tertiary hospital centers. Statistical analysis was performed on an intent-to-treat basis from December 4, 2019, to November 10, 2020. Interventions Patients underwent an observational period, then switched to an interventional period when they received oral sirolimus (target serum levels, 4-12 ng/mL). The switch time was randomized from month 4 to month 8, and the whole study period lasted 12 months for each patient. Main Outcomes and Measures The primary outcome was change in the volume of vascular malformations detected on magnetic resonance imaging scan (with centralized interpretation) per unit of time (ie, between the interventional period and the observational period). Secondary outcomes included subjective end points: pain, bleeding, oozing, quality of life, and safety. Results Among the participants (35 girls [59.3%]; mean [SD] age, 11.6 [3.8] years), 22 (37.3%) had a pure venous malformation, 18 (30.5%) had a cystic lymphatic malformation, and 19 (32.2%) had a combined malformation, including syndromic forms. Variations in the volume of vascular malformations detected on magnetic resonance imaging scans associated with the duration period were not overall significantly different between the interventional period and the observational period (all vascular malformations: mean [SD] difference, -0.001 [0.007]; venous malformations: mean [SD] difference, 0.001 [0.004]; combined malformations: mean [SD] difference, 0.001 [0.009]). However, a significant decrease in volume was observed for children with pure lymphatic malformations (mean [SD] difference, -0.005 [0.005]). Overall, sirolimus had positive effects on pain, especially for combined malformations, and on bleeding, oozing, self-assessed efficacy, and quality of life. During sirolimus treatment, 56 patients experienced 231 adverse events (5 serious adverse events, none life-threatening). The most frequent adverse event was an oral ulcer (29 patients [49.2%]). Conclusions and Relevance This observational-phase randomized clinical trial allows for clarifying the goals of patients and families when starting sirolimus therapy for children older than 6 years. Pure lymphatic malformations seem to be the best indication for sirolimus therapy because evidence of decreasing lymphatic malformation volume per unit of time, oozing, and bleeding and increasing quality of life was found. In combined malformations, sirolimus significantly reduced pain, oozing, and bleeding. Benefits seemed lower for pure venous malformations than for the 2 other subgroups, also based on symptoms. Trial Registration ClinicalTrials.gov Identifier: NCT02509468; clinicaltrialsregister.eu Identifier: 2015-001096-43.
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Affiliation(s)
- Annabel Maruani
- University of Tours, University of Nantes, Institut National de la Santé et de la Recherche Médicale, SPHERE U1246, Tours, France.,Centre Hospitalier Régional Universitaire Tours, Department of Dermatology, Reference Center for Genodermatoses and Rare Skin Diseases (Maladies Génétiques rares à Expression Cutanée-Tours), Tours, France.,Centre Hospitalier Régional Universitaire Tours, Institut National de la Santé et de la Recherche Médicale Clinical Investigation Center 1415, Tours, France
| | - Elsa Tavernier
- University of Tours, University of Nantes, Institut National de la Santé et de la Recherche Médicale, SPHERE U1246, Tours, France.,Centre Hospitalier Régional Universitaire Tours, Institut National de la Santé et de la Recherche Médicale Clinical Investigation Center 1415, Tours, France
| | - Olivia Boccara
- Department of Dermatology and Reference Center for Genodermatoses and Rare Skin Diseases (Maladies Génétiques rares à Expression Cutanée-Necker), University Hospital Necker-Enfants Malades, Paris, France
| | | | - Sophie Leducq
- University of Tours, University of Nantes, Institut National de la Santé et de la Recherche Médicale, SPHERE U1246, Tours, France.,Centre Hospitalier Régional Universitaire Tours, Department of Dermatology, Reference Center for Genodermatoses and Rare Skin Diseases (Maladies Génétiques rares à Expression Cutanée-Tours), Tours, France
| | - Didier Bessis
- Department of Dermatology, University Hospital Center of Montpellier, Montpellier, France
| | - Laurent Guibaud
- University Hospital Center of Lyon, Consultation Multidisciplinaire Lyonnaise des Angiomes, Lyon, France
| | - Pierre Vabres
- Department of Dermatology, University Hospital Center of Dijon, Dijon, France
| | - Virginie Carmignac
- Department of Dermatology, University Hospital Center of Dijon, Dijon, France
| | - Stéphanie Mallet
- Department of Dermatology, University Hospital Center of Marseille, Marseille, France
| | - Sébastien Barbarot
- Department of Dermatology, University Hospital Center of Nantes, Nantes, France
| | | | | | | | - Céline Lengellé
- Centre Hospitalier Régional Universitaire Tours, Department of Clinical Pharmacology, Regional Pharmacovigilance Center, Tours, France
| | - Jean-Baptiste Woillard
- Centre Hospitalier Universitaire Limoges, Department of Pharmacology and Toxicology, University of Limoges, Institut National de la Santé et de la Recherche Médicale Unité Mixte de Recherche 850, Limoges, France
| | - Denis Herbreteau
- University of Tours, Centre Hospitalier Régional Universitaire Tours, Department of Neuroradiology, Reference Center for Genodermatoses and Rare Skin Diseases (Maladies Génétiques rares à Expression Cutanée-Tours), Tours, France
| | - Anne Le Touze
- Centre Hospitalier Régional Universitaire Tours, Department of Pediatric Surgery, Reference Center for Genodermatoses and Rare Skin Diseases (Maladies Génétiques rares à Expression Cutanée-Tours), Tours, France
| | - Aline Joly
- Centre Hospitalier Régional Universitaire Tours, Department of Pediatric Maxillofacial Surgery, Reference Center for Genodermatoses and Rare Skin Diseases (Maladies Génétiques rares à Expression Cutanée-Tours), Tours, France
| | | | - Julie Powell
- Department of Pediatric Dermatology, Hospital Sainte-Justine, Montréal, Québec, Canada
| | - Hélène Bourgoin
- Centre Hospitalier Régional Universitaire Tours, Department of Pharmacy, Tours, France
| | - Valérie Gissot
- Centre Hospitalier Régional Universitaire Tours, Institut National de la Santé et de la Recherche Médicale Clinical Investigation Center 1415, Tours, France
| | - Bruno Giraudeau
- University of Tours, University of Nantes, Institut National de la Santé et de la Recherche Médicale, SPHERE U1246, Tours, France.,Centre Hospitalier Régional Universitaire Tours, Institut National de la Santé et de la Recherche Médicale Clinical Investigation Center 1415, Tours, France
| | - Baptiste Morel
- University of Tours, Centre Hospitalier Régional Universitaire Tours, Department of Pediatric Radiology, Tours, France
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Swarbrick AW, Frederiks AJ, Foster RS. Systematic review of sirolimus in dermatological conditions. Australas J Dermatol 2021; 62:461-469. [PMID: 34328215 DOI: 10.1111/ajd.13671] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Revised: 06/28/2021] [Accepted: 07/04/2021] [Indexed: 12/13/2022]
Abstract
Sirolimus is a mammalian target of rapamycin inhibitor (mTORI) with anti-proliferative, antiangiogenic and immunosuppressive properties. While approved in Australia as an anti-rejection medication for renal transplant patients, there is mounting evidence regarding the utility of oral and topical sirolimus in treating a plethora of dermatological conditions or conditions with cutaneous manifestations. Our aim was to present an overview of the evidence for current usage and breadth of the application of sirolimus in dermatology. We carried out a systematic review of all the literature published up to 31 August 2019 on oral and topical sirolimus with respect to dermatological conditions or conditions otherwise relevant to dermatology. While 3368 papers were initially produced in our search, 238 papers met our inclusion criteria and were examined in our review. The conditions examined were categorised into genodermatoses (9 conditions), infection (1 condition), inflammatory/autoimmune (10 conditions), neoplasm (3 conditions) and vascular (17 conditions). We extracted data on first author, publication year, journal, characteristics of the study and study patients, condition, drug modalities, drug efficacy, side effects, blood level of mTORI, co-interventions and follow-up. While there is level 1 evidence for the efficacy of sirolimus in conditions such as tuberous sclerosis complex (TSC) and GVHD prophylaxis, for many other conditions, the evidence is limited to level 4 evidence. Regarding oral systemic therapy, dosing regimens varied with the most common for children 0.8mg/m2 twice daily and for adults 1 mg twice daily. Doses were often adjusted to reach a typical trough level of between 5 and 15 ng/mL, though targets often varied. In the overall majority of cases, side effects were minimal or tolerable, including mucositis, cytopenias, lipid abnormalities and nausea/vomiting, and only a few cases had to stop due to adverse effects. Regarding topical therapy, concentration of formulations varied from 0.1% to 1% and were compounded into creams, ointments or gels and administered typically once or twice per day. The most common side effect was skin irritation. There were a number of limitations to our study. In particular, many of the published studies were case reports or case series with no comparator arm, leading to susceptibility of bias in conclusions drawn, in particular a high likelihood of publication bias. Given the heterogeneity amongst studies, comparisons or aggregation of results was difficult. There continues to be growing use of oral and topical sirolimus in dermatological conditions. It provides new therapeutic options to patients where previous therapies have either failed or are limited due to toxicity. However, further studies are warranted.
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Affiliation(s)
- Andrew W Swarbrick
- Department of Dermatology, Sir Charles Gairdner Hospital, Nedlands, Australia
| | - Aaron J Frederiks
- Royal Perth Hospital, Perth, Australia.,School of Medicine, University of Western Australia, Perth, Australia
| | - Rachael S Foster
- Department of Dermatology, Sir Charles Gairdner Hospital, Nedlands, Australia.,Department of Dermatology, Perth Children's Hospital, Nedlands, Australia
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Bajagai YS, Radovanovic A, Steel JC, Stanley D. The Effects of Continual Consumption of Origanum vulgare on Liver Transcriptomics. Animals (Basel) 2021; 11:ani11020398. [PMID: 33557421 PMCID: PMC7915382 DOI: 10.3390/ani11020398] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Revised: 01/23/2021] [Accepted: 01/30/2021] [Indexed: 12/04/2022] Open
Abstract
Simple Summary The use of phytogenic products has entered mainstream use in the livestock industry as an antibiotic alternative. These products, often based on herbs and spices with established antimicrobial properties, are generally considered as safe and natural, however, they are often administered in high doses and frequency. The direct effects of these products on the livestock animals remains under-reported. Using a transcriptomics, we show that supplementing 2% oregano in feed has direct effects on gene expression in the livers of broilers with a potential range of beneficial and negative side effects. Abstract Pathogen control is re-emerging as a significant challenge to the health of both humans and animals. The livestock industry is in the process of massively replacing in-feed antibiotics with organic production friendly plant-based products. Nutrigenomics as a science of the effects of food constituents on gene expression is shedding more light on both benefits and detrimental side-effects of feed additive prolonged consumption on the host, indicating the need to understand the feed-host interactions and their influence on the host disease profile. In this study, we investigated the effects of 2% oregano powder supplementation on the liver gene expression in healthy male broilers from the hatch to 6 weeks of age. Deep RNAseq was performed on average 113.3 million paired and quality trimmed sequences per sample and four samples for the control and treatment each. The results demonstrate the severity of oregano effect on liver gene expression with substantial modifications in steroid hormone regulation, fat and carbohydrate metabolism alterations and strong influence on the host disease and function profile. Oregano supplementation was able to interfere with the transcriptional effects of a range of registered drugs and to significantly transcriptionally inhibit a range of cancer disease categories including liver cancer, and to modify fat and carbohydrate metabolism.
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Affiliation(s)
- Yadav S. Bajagai
- Institute for Future Farming Systems, Central Queensland University, Rockhampton, QLD 4702, Australia; (Y.S.B.); (J.C.S.)
| | - Anita Radovanovic
- Faculty of Veterinary Medicine, University of Belgrade, 11000 Belgrade, Serbia;
| | - Jason C. Steel
- Institute for Future Farming Systems, Central Queensland University, Rockhampton, QLD 4702, Australia; (Y.S.B.); (J.C.S.)
| | - Dragana Stanley
- Institute for Future Farming Systems, Central Queensland University, Rockhampton, QLD 4702, Australia; (Y.S.B.); (J.C.S.)
- Correspondence: ; Tel.: +61-7-4923-2079
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Charnaya O, Seifert M. Promoting cardiovascular health post-transplant through early diagnosis and adequate management of hypertension and dyslipidemia. Pediatr Transplant 2021; 25:e13811. [PMID: 32871051 DOI: 10.1111/petr.13811] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 06/18/2020] [Accepted: 07/13/2020] [Indexed: 12/17/2022]
Abstract
Despite correction of underlying solid organ failure by transplantation, pediatric transplant recipients still have increased mortality rates compared to the general pediatric population, in part due to increased cardiovascular risk. In particular, pediatric kidney and non-kidney transplant recipients with chronic kidney disease have significant cardiovascular risk that worsens with declining kidney function. Biomarkers associated with future cardiovascular risk such as casual and ambulatory hypertension, dyslipidemia, vascular stiffness and calcification, and left ventricular hypertrophy can be detected throughout the post-transplant period and in patients with stable kidney function. Among these, hypertension and dyslipidemia are two potentially modifiable cardiovascular risk factors that are highly prevalent in kidney and non-kidney pediatric transplant recipients. Standardized approaches to appropriate BP measurement and lipid monitoring are needed to detect and address these risk factors in a timely fashion. To achieve sustained improvement in cardiovascular health, clinicians should partner with patients and their caregivers to address these and other risk factors with a combined approach that integrates pharmacologic with non-pharmacologic approaches. This review outlines the scope and impact of hypertension and dyslipidemia in pediatric transplant recipients, with a particular focus on pediatric kidney transplantation given the high burden of chronic kidney disease-associated cardiovascular risk. We also review the current published guidelines for monitoring and managing abnormalities in blood pressure and lipids, highlighting the important role of therapeutic lifestyle changes in concert with antihypertensive and lipid-lowering medications.
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Affiliation(s)
- Olga Charnaya
- Department of Pediatrics, Johns Hopkins University, Baltimore, MD, USA
| | - Michael Seifert
- Department of Pediatrics, University of Alabama School of Medicine, Birmingham, AL, USA
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Liverman R, Chandran MM, Crowther B. Considerations and controversies of pharmacologic management of the pediatric kidney transplant recipient. Pharmacotherapy 2021; 41:77-102. [PMID: 33151553 DOI: 10.1002/phar.2483] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Revised: 09/18/2020] [Accepted: 10/10/2020] [Indexed: 12/23/2022]
Abstract
Pediatric kidney transplantation has experienced considerable growth and improvement in patient and allograft outcomes over the past 20 years, in part due to advancements in immunosuppressive regimens and management. Despite this progress, care for this unique population can be challenging due to limited pediatric transplant data and trials, intricacies related to differences in children and adolescents compared with their adult counterparts, and limitations to long-term survival facing all solid organ transplant populations. Immunosuppression and infection prevention practices vary from one pediatric transplant center to another and clinical controversies exist surrounding treatment and dosing. This review aims to summarize key aspects of pharmacologic management in this population and present pertinent data that describe the influence of practice to serve as a resource for practitioners caring for this unique specialty patient population. Additionally, this review highlights select controversies that exist within pediatric kidney transplantation.
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Affiliation(s)
- Rochelle Liverman
- Department of Pharmacy, Children's Healthcare of Atlanta, Atlanta, Georgia, USA
| | - Mary Moss Chandran
- Department of Pharmacy, Childeren's Hospital Colorado, Aurora, Colorado, USA
| | - Barrett Crowther
- Ambulatory Care Pharmacy Services, University of Colorado Hospital, Aurora, Colorado, USA
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11
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Kelchtermans J, Chang J, Glaberson W, DeFreitas M, Alba-Sandoval M, Chandar J. A Pediatric Case of Sirolimus-Associated Pneumonitis After Kidney Transplantation. J Pediatr Pharmacol Ther 2020; 25:459-464. [PMID: 32641918 DOI: 10.5863/1551-6776-25.5.459] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Sirolimus is an immunosuppressive medication often used in solid organ transplantation. It has been associated with severe side effects, including pulmonary toxicity. In adult patients, a single center study found that 14% of those treated with sirolimus developed pulmonary pneumonitis; however, the incidence in the pediatric population is not known. Most reports in adult patients indicate that elevated drug concentrations and a prolonged duration of use are associated with pulmonary toxicity. We report a case of a 17-year-old male kidney transplant recipient who developed rapid-onset respiratory failure, necessitating mechanical ventilation and acute renal replacement therapy for ultrafiltration secondary to sirolimus-induced pneumonitis. He had been treated for acute rejection with corticosteroids 17 days prior to the development of pneumonitis. His symptoms developed within 1 week of initiation of sirolimus and with a serum concentration of 1.1 ng/mL. Sirolimus was discontinued, and, following aggressive diuresis and ventilatory support, his respiratory status returned to baseline. Sirolimus-induced pneumonitis is an important diagnosis to be considered in any transplant recipient receiving sirolimus with new onset fever, cough, or dyspnea without an identifiable source, especially if there is a preceding history of treatment with high-dose corticosteroids.
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12
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Qayed M, Cash T, Tighiouart M, MacDonald TJ, Goldsmith KC, Tanos R, Kean L, Watkins B, Suessmuth Y, Wetmore C, Katzenstein HM. A phase I study of sirolimus in combination with metronomic therapy (CHOAnome) in children with recurrent or refractory solid and brain tumors. Pediatr Blood Cancer 2020; 67:e28134. [PMID: 31876107 DOI: 10.1002/pbc.28134] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/02/2019] [Revised: 11/22/2019] [Accepted: 11/24/2019] [Indexed: 12/15/2022]
Abstract
BACKGROUND/PURPOSE To determine the maximum tolerated dose, toxicities, and response of sirolimus combined with oral metronomic therapy in pediatric patients with recurrent and refractory solid and brain tumors. PROCEDURE Patients younger than 30 years of age with recurrent, refractory, or high-risk solid and brain tumors were eligible. Patients received six-week cycles of sirolimus with twice daily celecoxib, and alternating etoposide and cyclophosphamide every three weeks, with Bayesian dose escalation over four dose levels (NCT01331135). RESULTS Eighteen patients were enrolled: four on dose level (DL) 1, four on DL2, eight on DL3, and two on DL4. Diagnoses included solid tumors (Ewing sarcoma, osteosarcoma, malignant peripheral nerve sheath tumor, rhabdoid tumor, retinoblastoma) and brain tumors (glioblastoma multiforme [GBM], diffuse intrinsic pontine glioma, high-grade glioma [HGG], medulloblastoma, ependymoma, anaplastic astrocytoma, low-grade infiltrative astrocytoma, primitive neuroectodermal tumor, nongerminomatous germ cell tumor]. One dose-limiting toxicity (DLT; grade 4 neutropenia) was observed on DL2, two DLTs (grade 3 abdominal pain and grade 3 mucositis) on DL3, and two DLTs (grade 3 dehydration and grade 3 mucositis) on DL4. The recommended phase II dose of sirolimus was 2 mg/m2 (DL3). Best response was stable disease (SD) in eight patients, and partial response (PR) in one patient with GBM. A patient with HGG was removed from the study with SD and developed PR without further therapy. Western blot analysis showed inhibition of phospho-S6 kinase in all patients during the first cycle of therapy. CONCLUSION The combination of sirolimus with metronomic chemotherapy is well tolerated in children. A phase II trial of this combination is ongoing.
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Affiliation(s)
- Muna Qayed
- Aflac Cancer and Blood Disorders Center, Children's Healthcare of Atlanta, Atlanta, Georgia.,Emory University School of Medicine, Atlanta, Georgia
| | - Thomas Cash
- Aflac Cancer and Blood Disorders Center, Children's Healthcare of Atlanta, Atlanta, Georgia.,Emory University School of Medicine, Atlanta, Georgia
| | - Mourad Tighiouart
- Samuel Oschkin Comprehensive Cancer Institute, Los Angeles, California
| | - Tobey J MacDonald
- Aflac Cancer and Blood Disorders Center, Children's Healthcare of Atlanta, Atlanta, Georgia.,Emory University School of Medicine, Atlanta, Georgia
| | - Kelly C Goldsmith
- Aflac Cancer and Blood Disorders Center, Children's Healthcare of Atlanta, Atlanta, Georgia.,Emory University School of Medicine, Atlanta, Georgia
| | - Rachel Tanos
- Emory University School of Medicine, Atlanta, Georgia
| | - Leslie Kean
- Dana-Farber/Boston Children's Cancer and Blood Disorders Center, Harvard Medical School, Boston, Massachusetts
| | - Benjamin Watkins
- Aflac Cancer and Blood Disorders Center, Children's Healthcare of Atlanta, Atlanta, Georgia.,Emory University School of Medicine, Atlanta, Georgia
| | | | - Cynthia Wetmore
- Center for Cancer and Blood Disorders, Phoenix Children's Hospital, Phoenix, Arizona
| | - Howard M Katzenstein
- Division of Pediatric Hematology/Oncology and Bone Marrow Transplantation, Nemours Children's Specialty Care and Wolfson Children's Hospital, Jacksonville, Florida
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13
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Efficacy and safety of sirolimus in the treatment of vascular anomalies: A systematic review. J Vasc Surg 2020; 71:318-327. [DOI: 10.1016/j.jvs.2019.06.217] [Citation(s) in RCA: 75] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Accepted: 06/04/2019] [Indexed: 01/10/2023]
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14
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Leducq S, Caille A, Barbarot S, Bénéton N, Bessis D, Boccara O, Bursztejn AC, Chiaverini C, Dompmartin A, Droitcourt C, Gissot V, Goga D, Guibaud L, Herbreteau D, Le Touze A, Léauté-Labrèze C, Lorette G, Mallet S, Martin L, Mazereeuw-Hautier J, Phan A, Plantin P, Quéré I, Vabres P, Bourgoin H, Giraudeau B, Maruani A. Topical sirolimus 0.1% for treating cutaneous microcystic lymphatic malformations in children and adults (TOPICAL): protocol for a multicenter phase 2, within-person, randomized, double-blind, vehicle-controlled clinical trial. Trials 2019; 20:739. [PMID: 31847908 PMCID: PMC6918625 DOI: 10.1186/s13063-019-3767-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2019] [Accepted: 09/29/2019] [Indexed: 12/12/2022] Open
Abstract
Background Cutaneous microcystic lymphatic malformations (CMLMs) are rare conditions in children and adults. They present as clusters of vesicles full of lymph and blood to various extents, inducing maceration, esthetic impairment, pain, and impaired quality of life. The treatment is challenging. Sirolimus is an inhibitor of mammalian target of rapamycin (mTOR) involved in angio-lymphangiogenesis. Topical sirolimus has recently been reported as effective in a few reports of patients with CMLMs. The objective is to compare the efficacy and safety of a 12-week application of 0.1% topical sirolimus versus topical vehicle in CMLMs in children and adults. Methods This French blinded multicenter within-person randomized controlled phase 2 trial aims to include 55 patients aged ≥ 6 years who have a primary CMLM. The CMLM will be divided into two equal areas that will be randomly allocated to 0.1% topical sirolimus or topical vehicle applied for 12 weeks. At the end of the 12-week period, the patient/parent will treat the whole area of CMLM with 0.1% topical sirolimus on remaining lesions, for eight more weeks. Patients will be seen at week 20 (treatment will be stopped) and at month 12 to evaluate long-term efficacy. The primary outcome will be improvement of the CMLM in the area treated with topical sirolimus compared to the area treated with topical vehicle by the investigator physician (blinded to the treatment) with the Physician Global Assessment score at week 12. Secondary outcomes will include: assessment of efficacy by independent experts on the basis of standardized photographs; impact on quality of life; efficacy for oozing, bleeding, erythema, and thickness evaluated by the investigators; and global efficacy as well as efficacy for functional and aesthetic impairment evaluated by the patient. Systemic passage of sirolimus will be measured at weeks 6, 12, and 20, and at week 16 for CMLMs ≥ 900 cm2. Discussion For patients with CMLMs, topical sirolimus could be a non-invasive and well-tolerated therapeutic option. If the trial demonstrates efficacy and safety of this treatment, this result will lead to a real change in the management of this condition, and 0.1% sirolimus cream would become the first-line treatment. Trial registration ClinicalTrials.gov, NCT03972592. Registered on 3 June 2019. EU Clinical Trials Register EudraCT, 2018–001359-11.
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Affiliation(s)
- Sophie Leducq
- INSERM U1246 -SPHERE « MethodS in Patients-centered outcomes and HEalth REsearch », University of Nantes, University of Tours, 37000, Tours, France. .,Department of Dermatology and Reference Center for Rare Diseases and Vascular Malformations (MAGEC), CHRU Tours, Avenue de la République, 37044, Tours, Cedex 9, France. .,Clinical Investigation Center, INSERM 1415, CHRU Tours, 37000, Tours, France.
| | - Agnès Caille
- INSERM U1246 -SPHERE « MethodS in Patients-centered outcomes and HEalth REsearch », University of Nantes, University of Tours, 37000, Tours, France.,Clinical Investigation Center, INSERM 1415, CHRU Tours, 37000, Tours, France
| | - Sébastien Barbarot
- Department of Dermatology, University Hospital Center of Nantes, 44000, Nantes, France
| | - Nathalie Bénéton
- Department of Dermatology, Hospital Center of le Mans, 72037, le Mans, France
| | - Didier Bessis
- Department of Dermatology, University Hospital Center of Montpellier, 34000, Montpellier, France
| | - Olivia Boccara
- Department of Dermatology and Reference center for genodermatoses and rare skin diseases (MAGEC), University Hospital Necker-Enfants Malades, 75015, Paris, France
| | - Anne-Claire Bursztejn
- Department of Dermatology, University Hospital Center of Nancy, 54000, Nancy, France
| | - Christine Chiaverini
- Department of Dermatology, University Hospital Center of Nice, 06000, Nice, France
| | - Anne Dompmartin
- Department of Dermatology, University Hospital Center of Caen, 54000, Caen, France
| | - Catherine Droitcourt
- Department of Dermatology, University Hospital Center of Rennes, 35000, Rennes, France
| | - Valérie Gissot
- Clinical Investigation Center, INSERM 1415, CHRU Tours, 37000, Tours, France
| | - Dominique Goga
- Department of Maxillo-Facial surgery, CHRU Tours, 37044, Tours, Cedex 9, France
| | - Laurent Guibaud
- University Hospital Center of Lyon, Consultation Multidisciplinaire Lyonnaise des Angiomes, 69229, Lyon, Cedex 2, France
| | | | - Anne Le Touze
- Department of Pediatric Surgery, CHRU Tours, 37000, Tours, France
| | | | - Gérard Lorette
- Department of Dermatology and Reference Center for Rare Diseases and Vascular Malformations (MAGEC), CHRU Tours, Avenue de la République, 37044, Tours, Cedex 9, France
| | - Stéphanie Mallet
- Department of Dermatology, University Hospital Center of Marseille, 13885, Marseille, Cedex 5, France
| | - Ludovic Martin
- Department of Dermatology, University Hospital Center of Angers, 49000, Angers, France
| | - Juliette Mazereeuw-Hautier
- Reference center for rare skin diseases, Department of Dermatology, University Hospital Center of Toulouse, Paul Sabatier University, 31059, Toulouse, France
| | - Alice Phan
- Department of Dermatology, University Hospital Center of Lyon, 69229, Lyon, Cedex 2, France
| | - Patrice Plantin
- Department of Dermatology, Hospital Center of Quimper, 29107, Quimper, France
| | - Isabelle Quéré
- Departement of Vascular Medicine, National Reference Centre for Rare Vascular Diseases, EA 2992 Research Team, University of Montpellier, University Hospital Center of Montpellier, 34000, Montpellier, France
| | - Pierre Vabres
- Department of Dermatology, University Hospital Center of Dijon, 21000, Dijon, France
| | - Hélène Bourgoin
- Department of Pharmacy, University Hospital Center of Tours, 37000, Tours, France
| | - Bruno Giraudeau
- INSERM U1246 -SPHERE « MethodS in Patients-centered outcomes and HEalth REsearch », University of Nantes, University of Tours, 37000, Tours, France.,Clinical Investigation Center, INSERM 1415, CHRU Tours, 37000, Tours, France
| | - Annabel Maruani
- INSERM U1246 -SPHERE « MethodS in Patients-centered outcomes and HEalth REsearch », University of Nantes, University of Tours, 37000, Tours, France. .,Department of Dermatology and Reference Center for Rare Diseases and Vascular Malformations (MAGEC), CHRU Tours, Avenue de la République, 37044, Tours, Cedex 9, France. .,Clinical Investigation Center, INSERM 1415, CHRU Tours, 37000, Tours, France.
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15
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Topical use of mammalian target of rapamycin inhibitors in dermatology: A systematic review with meta-analysis. J Am Acad Dermatol 2019; 80:735-742. [DOI: 10.1016/j.jaad.2018.10.070] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Revised: 10/23/2018] [Accepted: 10/30/2018] [Indexed: 01/05/2023]
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16
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Maruani A, Boccara O, Bessis D, Guibaud L, Vabres P, Mazereeuw-Hautier J, Barbarot S, Chiaverini C, Blaise S, Droitcourt C, Mallet S, Martin L, Lorette G, Woillard JB, Jonville-Bera AP, Rollin J, Gruel Y, Herbreteau D, Goga D, le Touze A, Leducq S, Gissot V, Morel B, Tavernier E, Giraudeau B. Treatment of voluminous and complicated superficial slow-flow vascular malformations with sirolimus (PERFORMUS): protocol for a multicenter phase 2 trial with a randomized observational-phase design. Trials 2018; 19:340. [PMID: 29945674 PMCID: PMC6020321 DOI: 10.1186/s13063-018-2725-1] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2017] [Accepted: 06/06/2018] [Indexed: 01/10/2023] Open
Abstract
BACKGROUND Slow-flow superficial vascular malformations (VMs) are rare congenital anomalies that can be responsible for pain and functional impairment. Currently, we have no guidelines for their management, which can involve physical bandages, sclerotherapy, surgery, anti-inflammatory or anti-coagulation drugs or no treatment. The natural history is progressive and worsening. Mammalian target of rapamycin (mTOR) is a serine/threonine kinase that acts as a master switch in cell proliferation, apoptosis, metabolism and angio/lymphangiogenesis. Sirolimus directly inhibits the mTOR pathway, thereby inhibiting cell proliferation and angio/lymphangiogenesis. Case reports and series have reported successful use of sirolimus in children with different types of vascular anomalies, with heterogeneous outcomes. OBJECTIVE The objective of this trial is to evaluate the efficacy and safety of sirolimus in children with complicated superficial slow-flow VMs. METHODS/DESIGN This French multicenter randomized observational-phase, phase 2 trial aims to include 50 pediatric patients 6 to 18 years old who have slow-flow (lymphatic, venous or lymphatico-venous) voluminous complicated superficial VM. Patients will be followed up for 12 months. All patients will start with an observational period (no treatment). Then at a time randomly selected between month 4 and month 8, they will switch to the experimental period (switch time), when they will receive sirolimus until month 12. Each child will undergo MRI 3 times: at baseline, at the switch time, and at month 12. For both periods (observational and treatment), we will calculate the relative change in volume of the VM divided by the study period duration. This relative change weighted by the study period duration will constitute the primary endpoint. VM will be measured by MRI images, which will be centralized and interpreted by the same radiologist who will be blinded to the study period. Hence, each patient will be his/her own control. Secondary outcomes will include assessment of safety and efficacy by viewing standardized digital photographs and according to the physician, the patient or proxy; impact on quality of life; and evolution of biological makers (coagulation factors, vascular endothelial growth factor, tissue factor). DISCUSSION The main benefit of the study will be to resolve uncertainty concerning the efficacy of sirolimus in reducing the volume of VMs and limiting related complications and the safety of the drug in children with slow-flow VMs. This trial design is interesting in these rare conditions because all included patients will have the opportunity to receive the drug and the physician can maintain it after the end of the protocol if is found efficient (which would not be the case in a classical cross-over study). TRIAL REGISTRATION ClinicalTrials.gov Identifier: NCT02509468 , first received: 28 July 2015. EU Clinical Trials Register EudraCT Number: 2015-001096-43.
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Affiliation(s)
- Annabel Maruani
- University of Tours, University of Nantes, INSERM, SPHERE U1246, Tours, France. .,Department of Dermatology, Unit of Pédiatric Dermatology, CHRU Tours, 37044, Tours Cedex 9, France. .,CHRU Tours, Clinical Investigation Center, INSERM 1415, 37000, Tours, France.
| | - Olivia Boccara
- Department of Dermatology and Reference center for genodermatoses and rare skin diseases (MAGEC), University Hospital Necker-Enfants Malades, 75015, Paris, France
| | - Didier Bessis
- Department of Dermatology, University Hospital Center of Montpellier, 34000, Montpellier, France
| | - Laurent Guibaud
- University Hospital Center of Lyon, Consultation Multidisciplinaire Lyonnaise des Angiomes, 69229, Lyon Cedex 2, France
| | - Pierre Vabres
- Department of Dermatology, University Hospital Center of Dijon, 21000, Dijon, France
| | | | - Sébastien Barbarot
- Department of Dermatology, University Hospital Center of Nantes, 44000, Nantes, France
| | - Christine Chiaverini
- Department of Dermatology, University Hospital Center of Nice, 06000, Nice, France
| | - Sophie Blaise
- Department of Vascular Medicine, University Hospital Center of Grenoble, 38043, Grenoble Cedex 9, France
| | - Catherine Droitcourt
- Department of Dermatology, University Hospital Center of Rennes, 35000, Rennes, France
| | - Stéphanie Mallet
- Department of Dermatology, University Hospital Center of Marseille, 13885, Marseille Cedex 5, France
| | - Ludovic Martin
- Department of Dermatology, University Hospital Center of Angers, 49000, Angers, France
| | - Gérard Lorette
- Department of Dermatology, Unit of Pédiatric Dermatology, CHRU Tours, 37044, Tours Cedex 9, France
| | - Jean-Baptiste Woillard
- Department of Pharmacology and Toxicology, University of Limoges, INSERM UMR 850, CHU Limoges, 87000, Limoges, France
| | - Annie-Pierre Jonville-Bera
- University of Tours, University of Nantes, INSERM, SPHERE U1246, Tours, France.,Department of Clinical Pharmacology, Regional Pharmacovigilance Center, CHRU Tours, 37044, Tours Cedex 9, France
| | - Jérome Rollin
- Department of Hematology-Hemostasis, University of Tours, UMR-CNRS 7292, CHRU Tours, 37044, Tours Cedex 9, France
| | - Yves Gruel
- Department of Hematology-Hemostasis, University of Tours, UMR-CNRS 7292, CHRU Tours, 37044, Tours Cedex 9, France
| | - Denis Herbreteau
- Department of Neuroradiology, University of Tours, CHRU Tours, 37000, Tours, France
| | - Dominique Goga
- Department of Maxillo-Facial surgery, University of Tours, CHRU Tours, 37044, Tours Cedex 9, France
| | - Anne le Touze
- Department of Pediatric Surgery, CHRU Tours, 37000, Tours, France
| | - Sophie Leducq
- Department of Dermatology, Unit of Pédiatric Dermatology, CHRU Tours, 37044, Tours Cedex 9, France
| | - Valérie Gissot
- CHRU Tours, Clinical Investigation Center, INSERM 1415, 37000, Tours, France
| | - Baptiste Morel
- Department of Pediatric Radiology, University of Tours, CHRU Tours, 37000, Tours, France
| | - Elsa Tavernier
- University of Tours, University of Nantes, INSERM, SPHERE U1246, Tours, France.,CHRU Tours, Clinical Investigation Center, INSERM 1415, 37000, Tours, France
| | - Bruno Giraudeau
- University of Tours, University of Nantes, INSERM, SPHERE U1246, Tours, France.,CHRU Tours, Clinical Investigation Center, INSERM 1415, 37000, Tours, France
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17
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Anomalies vasculaires bénignes agressives de l’enfant et de l’adolescent. Bull Cancer 2018; 105:610-625. [DOI: 10.1016/j.bulcan.2018.01.016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2017] [Revised: 01/15/2018] [Accepted: 01/20/2018] [Indexed: 01/11/2023]
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18
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Habbig S, Volland R, Krupka K, Querfeld U, Dello Strologo L, Noyan A, Yalcinkaya F, Topaloglu R, Webb NJA, Kemper MJ, Pape L, Bald M, Kranz B, Taylan C, Höcker B, Tönshoff B, Weber LT. Dyslipidemia after pediatric renal transplantation-The impact of immunosuppressive regimens. Pediatr Transplant 2017; 21. [PMID: 28370750 DOI: 10.1111/petr.12914] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 02/15/2017] [Indexed: 02/06/2023]
Abstract
Dyslipidemia contributes to cardiovascular morbidity and mortality in pediatric transplant recipients. Data on prevalence and risk factors in pediatric cohorts are, however, scarce. We therefore determined the prevalence of dyslipidemia in 386 pediatric renal transplant recipients enrolled in the CERTAIN registry. Data were obtained before and during the first year after RTx to analyze possible non-modifiable and modifiable risk factors. The prevalence of dyslipidemia was 95% before engraftment and 88% at 1 year post-transplant. Low estimated glomerular filtration rate at 1 year post-transplant was associated with elevated serum triglyceride levels. The use of TAC and of MPA was associated with significantly lower concentrations of all lipid parameters compared to regimens containing CsA and mTORi. Immunosuppressive regimens consisting of CsA, MPA, and steroids as well as of CsA, mTORi, and steroids were associated with a three- and 25-fold (P<.001) increased risk of having more than one pathologic lipid parameter as compared to the use of TAC, MPA, and steroids. Thus, amelioration of the cardiovascular risk profile after pediatric RTx may be attained by adaption of the immunosuppressive regimen according to the individual risk profile.
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Affiliation(s)
- Sandra Habbig
- Division of Pediatric Nephrology, University Children's and Adolescent's Hospital, Cologne, Germany
| | - Ruth Volland
- Division of Pediatric Oncology and Hematology, University Children's and Adolescent's Hospital, Cologne, Germany
| | - Kai Krupka
- Department of Pediatrics I, University Children's Hospital, Heidelberg, Germany
| | - Uwe Querfeld
- Pediatric Nephrology Charité, University Children's Hospital Berlin, Berlin, Germany
| | | | - Aytül Noyan
- Department of Pediatric Nephrology, Adana Teaching and Research Center, Baskent University, Adana, Turkey
| | - Fatos Yalcinkaya
- Department of Pediatric Nephrology, Ankara University School of Medicine, Ankara, Turkey
| | - Rezan Topaloglu
- Department of Pediatric Nephrology, Faculty of Medicine, Hacettepe University, Ankara, Turkey
| | - Nicholas J A Webb
- Royal Manchester Children's Hospital, Central Manchester University Hospitals NHS Foundation Trust, Manchester Academic Health Science Center, Manchester, UK
| | - Markus J Kemper
- University Children's Hospital, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.,Pediatric Asklepios Hospital Nord-Heidberg, Hamburg, Germany
| | - Lars Pape
- Department of Pediatric Nephrology, Hannover Medical School, Hannover, Germany
| | - Martin Bald
- Clinic of Stuttgart, Olga Children's Hospital, Stuttgart, Germany
| | - Birgitta Kranz
- Department of General Pediatrics, Pediatric Nephrology, University Children's Hospital Muenster, Münster, Germany
| | - Christina Taylan
- Division of Pediatric Nephrology, University Children's and Adolescent's Hospital, Cologne, Germany
| | - Britta Höcker
- Department of Pediatrics I, University Children's Hospital, Heidelberg, Germany
| | - Burkhard Tönshoff
- Department of Pediatrics I, University Children's Hospital, Heidelberg, Germany
| | - Lutz T Weber
- Division of Pediatric Nephrology, University Children's and Adolescent's Hospital, Cologne, Germany
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19
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Sirolimus Versus Tacrolimus as Primary Immunosuppressant After Renal Transplantation: A Meta-Analysis and Economics Evaluation. Am J Ther 2016; 23:e1720-e1728. [DOI: 10.1097/mjt.0000000000000186] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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20
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Droitcourt C, Boccara O, Fraitag S, Favrais G, Dupuy A, Maruani A. Multifocal Lymphangioendotheliomatosis With Thrombocytopenia: Clinical Features and Response to Sirolimus. Pediatrics 2015; 136:e517-22. [PMID: 26148948 DOI: 10.1542/peds.2014-2410] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 04/28/2015] [Indexed: 11/24/2022] Open
Abstract
Multifocal lymphangioendotheliomatosis with thrombocytopenia (MLT) is a recently described glucose transporter 1-negative multifocal vascular disorder with significant morbidity and mortality. However, data are lacking on the clinical spectrum, long-term prognosis, and treatment of MLT. It is often confused with multifocal infantile hemangioma, but the conditions must be differentiated for appropriate assessment and therapeutic management. Treatments for MLT have been disappointing, and the treatments classically used for infantile hemangioma are often ineffective. We report 3 newborn cases featuring various clinical and biological phenotypes of MLT: 1 patient had severe brain involvement and died early; another had no thrombocytopenia; and the third had nearly no skin involvement. Histologically, all were negative for glucose transporter 1 and positive for the lymphatic marker lymphatic vessel endothelial hyaluronan receptor 1 or D2-40 (∼38-kDa O-linked transmembrane sialoglycoprotein podoplanin). Two cases with severe gastrointestinal bleeding were treated with sirolimus 0.1 mg/k per day, which was efficient after the first month of treatment. MLT clinically presents in various forms, and when complicated by widespread or severe extracutaneous involvement, initial aggressive therapeutic intervention is justified. The pathogenesis of MLT remains unclear, but lymphatic differentiation is widely acknowledged. Because of its antiangiogenic properties, including anti-lymphangiogenesis, sirolimus offers an adequate and targeted therapeutic approach for MLT.
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Affiliation(s)
- Catherine Droitcourt
- University Rennes 1, Department of Dermatology, Inserm CIC 0203 Pharmacoepidemiology Unit, CHU Rennes, Rennes, France;
| | - Olivia Boccara
- Department of Dermatology and Reference Center for Genodermatoses and Rare Skin Diseases (MAGEC), University Paris Descartes-Sorbonne Paris Cité, Institute Imagine, University Hospital Necker-Enfants Malades, Paris, France;
| | - Sylvie Fraitag
- Department of Pathology, University Hospital Necker-Enfants Malades, Paris, France; and
| | | | - Alain Dupuy
- University Rennes 1, Department of Dermatology, Inserm CIC 0203 Pharmacoepidemiology Unit, CHU Rennes, Rennes, France
| | - Annabel Maruani
- Dermatology, University Francois Rabelais Tours, CHRU Tours, Tours, France
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Somers MJ, Paul E. Safety considerations of mammalian target of rapamycin inhibitors in tuberous sclerosis complex and renal transplantation. J Clin Pharmacol 2014; 55:368-76. [DOI: 10.1002/jcph.428] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2014] [Accepted: 11/12/2014] [Indexed: 11/05/2022]
Affiliation(s)
- Michael J.G. Somers
- Division of Nephrology; Boston Children's Hospital; Boston MA USA
- Department of Pediatrics; Harvard Medical School; Boston MA USA
| | - Elahna Paul
- Department of Pediatrics; Harvard Medical School; Boston MA USA
- Herscot Center for TSC and Division of Pediatric Nephrology; Massachusetts General Hospital; Boston MA USA
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Morgenstern DA, Marzouki M, Bartels U, Irwin MS, Sholler GLS, Gammon J, Yankanah R, Wu B, Samson Y, Baruchel S. Phase I study of vinblastine and sirolimus in pediatric patients with recurrent or refractory solid tumors. Pediatr Blood Cancer 2014; 61:128-33. [PMID: 23956145 DOI: 10.1002/pbc.24656] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/02/2013] [Accepted: 05/23/2013] [Indexed: 11/10/2022]
Abstract
BACKGROUND The combination of vinblastine and mammalian target of rapamycin (mTOR) inhibitor sirolimus inhibits the growth of neuroblastoma xenografts through pro-apoptotic and anti-angiogenic mechanisms. This phase I study aimed to explore the safety and toxicity of this combination in pediatric patients with advanced solid tumors. PROCEDURE Patients ≤21 years of age with recurrent/refractory solid tumors (including CNS) were eligible. Sirolimus was administered daily by mouth or nasogastric (NG) tube, with doses adjusted to achieve a target trough concentration of 10-15 ng/ml, with weekly intravenous vinblastine (dose escalated 4-6 mg/m(2)/dose according to 3 + 3 phase I design). RESULTS Fourteen patients were enrolled (median age 8.7 years; range 2.3-19) of whom 12 were evaluable for toxicity and 11 for response. One patient experienced a dose-limiting toxicity (grade 3 mucositis) at the highest vinblastine dose level. Myelosuppression was the most common toxicity. Dose-adjusted sirolimus trough concentrations were significantly lower in patients receiving drug via NG tube (1.50 ± 0.75 ng/ml/mg vs. 2.25 ± 1.07 ng/ml/mg for oral administration). Correlative biomarker analysis demonstrated a significant reduction in serum concentration of soluble vascular endothelial growth factor receptor (sVEGFR2) at 28 days compared to baseline consistent with inhibition of angiogenesis. One patient had a partial response and three had stable disease for more than 3 months. CONCLUSIONS The combination of mTOR inhibitor and vinblastine given over an extended continuous schedule is safe, associated with a reduction in circulating angiogenic factor (CAF) VEGFR2 and resulted in clinical responses. Future studies using the intravenously administered mTOR inhibitor temsirolimus are planned.
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Affiliation(s)
- Daniel A Morgenstern
- Department of Paediatrics, University of Toronto and New Agent and Innovative Therapy Programme, The Hospital for Sick Children, Toronto, Ontario, Canada
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Long-term side effects of treatment with mTOR inhibitors in children after renal transplantation. Pediatr Nephrol 2013; 28:1293-8. [PMID: 23584849 DOI: 10.1007/s00467-013-2459-y] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/08/2012] [Revised: 02/11/2013] [Accepted: 02/12/2013] [Indexed: 01/12/2023]
Abstract
BACKGROUND mTOR inhibitors (mTORI) have emerged as alternative and additive immunosuppressive agents in pediatric renal transplantation (pRTx). Their immunosuppressive, anti-proliferative, and anti-neoplastic mechanisms have been described to be effective, whereas some side effects are alarming. In particular, growth and pubertal development are of concern. The aim of this study was to look for long-term side effects of mTORI therapy in pRTx. PATIENTS AND METHODS The retrospective analysis focused on side effects, growth, and pubertal development under mTORI therapy in 31 children. Eighteen children were routinely monitored for estradiol, testosterone, LH, and FSH levels. RESULTS The occurrence of bacterial infections, lymphoceles, myelosuppression, and the course of overall linear growth was comparable with other pediatric renal transplant cohorts. According to the clinical puberty status, all but one patient showed normal age-related development in parallel to normal serum hormone levels. Only one patient experienced cytomegaly virus infection under mTORI, no post-transplant lymphoproliferative disorders (PTLD) occurred. CONCLUSIONS Long-term mTORI therapy is safe in pRTx. No negative impact on growth and pubertal development was observed.
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Nikoueinejad H, Soleimani A, Mirshafiey A, Amirzargar A, Sarrafnejad A, Kamkar I, Einollahi B. Conversion of calcineurin inhibitors with mammalian target of rapamycin inhibitors after kidney transplant. EXP CLIN TRANSPLANT 2013; 11:12-6. [PMID: 23387537 DOI: 10.6002/ect.2012.0118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
One way to overcome chronic allograft nephropathy induced by calcineurin inhibitors in immunosuppression protocols for organ transplants is to replace such inhibitors with mammalian target of rapamycin inhibitors, which are not clinically nephrotoxic because they have better renal function. If patients tolerate replacement, there could be a clear preference for mammalian target of rapamycin inhibitors as a maintenance immunosuppressant after renal transplant. This replacement could be sufficient if it were used for a certain time after calcineurin inhibitors. This review considers the conversion effects of calcineurin inhibitors with mammalian target of rapamycin inhibitors from the view point of kidney function during different periods after a kidney transplant.
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25
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Hartman AL, Santos P, Dolce A, Hardwick JM. The mTOR inhibitor rapamycin has limited acute anticonvulsant effects in mice. PLoS One 2012; 7:e45156. [PMID: 22984623 PMCID: PMC3440313 DOI: 10.1371/journal.pone.0045156] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2012] [Accepted: 08/13/2012] [Indexed: 01/24/2023] Open
Abstract
Objective The mammalian target of rapamycin (mTOR) pathway integrates signals from different nutrient sources, including amino acids and glucose. Compounds that inhibit mTOR kinase activity such as rapamycin and everolimus can suppress seizures in some chronic animal models and in patients with tuberous sclerosis. However, it is not known whether mTOR inhibitors exert acute anticonvulsant effects in addition to their longer term antiepileptogenic effects. To gain insights into how rapamycin suppresses seizures, we investigated the anticonvulsant activity of rapamycin using acute seizure tests in mice. Methods Following intraperitoneal injection of rapamycin, normal four-week-old male NIH Swiss mice were evaluated for susceptibility to a battery of acute seizure tests similar to those currently used to screen potential therapeutics by the US NIH Anticonvulsant Screening Program. To assess the short term effects of rapamycin, mice were seizure tested in ≤6 hours of a single dose of rapamycin, and for longer term effects of rapamycin, mice were tested after 3 or more daily doses of rapamycin. Results The only seizure test where short-term rapamycin treatment protected mice was against tonic hindlimb extension in the MES threshold test, though this protection waned with longer rapamycin treatment. Longer term rapamycin treatment protected against kainic acid-induced seizure activity, but only at late times after seizure onset. Rapamycin was not protective in the 6 Hz or PTZ seizure tests after short or longer rapamycin treatment times. In contrast to other metabolism-based therapies that protect in acute seizure tests, rapamycin has limited acute anticonvulsant effects in normal mice. Significance The efficacy of rapamycin as an acute anticonvulsant agent may be limited. Furthermore, the combined pattern of acute seizure test results places rapamycin in a third category distinct from both fasting and the ketogenic diet, and which is more similar to drugs acting on sodium channels.
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Affiliation(s)
- Adam L. Hartman
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
- W. Harry Feinstone Department of Molecular Microbiology and Immunology, Johns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland, United States of America
- * E-mail: (ALH); (JMH)
| | - Polan Santos
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
| | - Alison Dolce
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
| | - J. Marie Hardwick
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
- W. Harry Feinstone Department of Molecular Microbiology and Immunology, Johns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland, United States of America
- * E-mail: (ALH); (JMH)
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Coccia PA, Ferraris JR. Can withdrawal of CNIs limit the progression of CAN? Pediatr Transplant 2012; 16:515-7. [PMID: 22676491 DOI: 10.1111/j.1399-3046.2012.01729.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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