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Moghadamnia M, Dashti-Khavidaki S, Alimadadi H. Role of mTOR Inhibitors in Pediatric Liver Transplant Recipients: A Systematic Review. Paediatr Drugs 2024:10.1007/s40272-024-00648-4. [PMID: 39251556 DOI: 10.1007/s40272-024-00648-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 07/27/2024] [Indexed: 09/11/2024]
Abstract
BACKGROUND Immunosuppressive medications play a crucial role in determining both organ and patient survival following liver transplantation (LT). Typically, immunosuppressive protocols for pediatric LT patients rely on calcineurin inhibitors (CNIs). While inhibitors of mammalian target of rapamycin (mTOR) have demonstrated beneficial outcomes in adult recipients of liver allografts, such as improved renal function post-LT, their application in pediatric liver transplant recipients is a subject of debate due to uncertain efficacy and potential adverse effects. OBJECTIVES This review evaluates the potential roles of mTOR inhibitors in the context of pediatric LT patients. METHODS This systematic review followed the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) protocol for conduct and reporting. Databases until 31 August 2023 were searched using specific terms and keywords. All clinical studies focusing on mTOR inhibitors in pediatric LT were included. RESULTS Out of 888 identified articles, 30 studies, involving 386 children who had undergone liver transplantation and received mTOR-inhibitor-based immunosuppressive regimens, met the inclusion criteria. The beneficial impacts of switching from a CNI to an mTOR inhibitor or adding an mTOR inhibitor to CNI-reduced immunosuppression in LT pediatric patients with impaired kidney function are controversial, and high-powered clinical studies are need. It appears that enhancing immunosuppression by adding an mTOR inhibitor to CNI is helpful for pediatric LT recipients who are experiencing refractory acute rejection or chronic rejection. mTOR-inhibitor-containing regimens failed to reduce the occurrence of post-transplant lymphoproliferative disorders (PTLD) among children with LT that may be due to concomitant high CNI concentration among studied patients. The effectiveness of mTOR inhibitors in treating PTLD remains uncertain; however, in patients with PTLD who are at high risk of rejection, mTOR inhibitors may be administered. Conversion to or the addition of mTOR inhibitors to maintenance immunosuppression seems to be suitable for pediatric patients who received a transplant due to hepatic malignancies such as hepatoblastoma or hepatocellular carcinoma or for those with post-transplant primary or recurrent malignancies. Switching to an mTOR inhibitor may improve some CNI-related adverse effects such as gingival hyperplasia, neurotoxicity, nephropathy, hypertrophic cardiomyopathy, or thrombotic microangiopathy. CONCLUSION Although the exact role of mTOR inhibitors among pediatric patients who have received a liver transplant needs further study, two algorithms are presented in this review to guide conversion from CNIs to mTOR inhibitors or the addition of mTOR inhibitor to a CNI-minimization immunosuppressive regimen for pediatric patients who may benefit from this class of drugs. This review mainly consisted of retrospective studies with inadequate sample sizes and lacked a control group, which represents the main limitation of this study.
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Affiliation(s)
- Marjan Moghadamnia
- Department of Pharmacotherapy, Faculty of Pharmacy, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Simin Dashti-Khavidaki
- Liver Transplantation Research Center, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran.
- Department of Clinical Pharmacy, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran.
| | - Hosein Alimadadi
- Department of Gastroenterology, Children's Medical Center, Tehran University of Medical Science, Tehran, Iran
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Dong Y, Cekuolis A, Schreiber-Dietrich D, Augustiniene R, Schwarz S, Möller K, Nourkami-Tutdibi N, Chen S, Cao JY, Huang YL, Wang Y, Taut H, Grevelding L, Dietrich CF. Review on Pediatric Malignant Focal Liver Lesions with Imaging Evaluation: Part II. Diagnostics (Basel) 2023; 13:3659. [PMID: 38132242 PMCID: PMC10743166 DOI: 10.3390/diagnostics13243659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Revised: 12/04/2023] [Accepted: 12/06/2023] [Indexed: 12/23/2023] Open
Abstract
Malignant focal liver lesions (FLLs) represent various kinds of epithelial and mesenchymal tumors. In pediatric patients, the understanding of pediatric liver diseases and associated imaging manifestations is essential for making accurate diagnosis and differential diagnosis. This paper will discuss the latest knowledge of the common pediatric malignant FLLs, including undifferentiated embryonal sarcoma, rhabdomyosarcoma, epithelioid hemangioendothelioma, angiosarcoma, and malignant rhabdoid tumor. Medical imaging features are not only helpful for clinical diagnosis, but can also be useful in the evaluation and follow-up of pre- and post-treatment. The future perspectives of contrast-enhanced ultrasound (CEUS) enhancement patterns of FLLs in pediatric patients are also mentioned.
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Affiliation(s)
- Yi Dong
- Department of Ultrasound, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200092, China; (Y.D.); (S.C.); (J.-Y.C.); (Y.-L.H.); (Y.W.)
| | - Andrius Cekuolis
- Ultrasound Section, Department of Pediatric Radiology, Radiology and Nuclear Medicine Centre, Vilnius University Hospital Santaros Klinikos, 08661 Vilnius, Lithuania; (A.C.); (R.A.)
| | | | - Rasa Augustiniene
- Ultrasound Section, Department of Pediatric Radiology, Radiology and Nuclear Medicine Centre, Vilnius University Hospital Santaros Klinikos, 08661 Vilnius, Lithuania; (A.C.); (R.A.)
| | - Simone Schwarz
- Department of Neonatology and Pediatric Intensive Care Medicine, Sana Kliniken Duisburg GmbH, 47055 Duisburg, Germany;
| | - Kathleen Möller
- Medical Department I/Gastroenterology, SANA Hospital Lichtenberg, 10365 Berlin, Germany;
| | - Nasenien Nourkami-Tutdibi
- Saarland University Medical Center, Hospital of General Pediatrics and Neonatology, 66421 Homburg, Germany;
| | - Sheng Chen
- Department of Ultrasound, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200092, China; (Y.D.); (S.C.); (J.-Y.C.); (Y.-L.H.); (Y.W.)
| | - Jia-Ying Cao
- Department of Ultrasound, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200092, China; (Y.D.); (S.C.); (J.-Y.C.); (Y.-L.H.); (Y.W.)
| | - Yun-Lin Huang
- Department of Ultrasound, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200092, China; (Y.D.); (S.C.); (J.-Y.C.); (Y.-L.H.); (Y.W.)
| | - Ying Wang
- Department of Ultrasound, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200092, China; (Y.D.); (S.C.); (J.-Y.C.); (Y.-L.H.); (Y.W.)
| | - Heike Taut
- Children’s Hospital, Universitätsklinikum Dresden, Technische Universität Dresden, 01069 Dresden, Germany;
| | - Lara Grevelding
- Department of Pediatrics, Division of Pneumology, Allergology, Infectious Diseases and Gastroenterology, University Hospital Frankfurt, Goethe University, 60323 Frankfurt, Germany
| | - Christoph F. Dietrich
- Department of Ultrasound, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200092, China; (Y.D.); (S.C.); (J.-Y.C.); (Y.-L.H.); (Y.W.)
- Department Allgemeine Innere Medizin (DAIM), Kliniken Hirslanden Beau Site, Salem und Permanence, 3013 Bern, Switzerland
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Grimaldi C, de Ville de Goyet J, Bici K, Cianci MC, Callea F, Morabito A. The role of liver transplantation in the care of primary hepatic vascular tumours in children. Front Oncol 2022; 12:1026232. [PMID: 36505841 PMCID: PMC9730342 DOI: 10.3389/fonc.2022.1026232] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Accepted: 10/31/2022] [Indexed: 11/25/2022] Open
Abstract
Liver transplantation (LT) is the standard of care for many liver conditions, such as end-stage liver diseases, inherited metabolic disorders, and primary liver malignancies. In the latter group, indications of LT for hepatoblastoma and hepatocellular carcinoma evolved and are currently available for many non-resectable cases. However, selection criteria apply, as the absence of active metastases. Evidence of good long-term outcomes has validated the LT approach for managing these malignancies in the context of specialist and multidisciplinary approach. Nevertheless, LT's role in treating primary vascular tumours of the liver in children, both benign and malignant, remains somewhat controversial. The rarity of the different diseases and the heterogeneity of pathological definitions contribute to the controversy and make evaluating the benefit/risk ratio and outcomes quite difficult. In this narrative review, we give an overview of primary vascular tumours of the liver in children, the possible indications and the outcomes of LT.
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Affiliation(s)
- Chiara Grimaldi
- Department of Pediatric Surgery, Meyer Children’s Hospital, University of Florence, Florence, Italy,*Correspondence: Chiara Grimaldi,
| | - Jean de Ville de Goyet
- Department of Pediatrics, IRCCS-Istituto Mediterraneo per i Trapianti e Terapie ad altra specializzazione (ISMETT) (Institute for Scientific-Based Care and Research-Mediterranean Institute for Transplantation and Advanced Specialized Therapies), Palermo, Italy
| | - Kejd Bici
- Department of Pediatric Surgery, Meyer Children’s Hospital, University of Florence, Florence, Italy
| | - Maria Chiara Cianci
- Department of Neuroscience, Psychology, Drug Research and Child Health (NEUROFARBA), University of Florence, Florence, Italy
| | - Francesco Callea
- Department of Histopathology, Bugando Medical Centre, Catholic University of Healthy Allied Sciences, Mwanza, Tanzania
| | - Antonino Morabito
- Department of Neuroscience, Psychology, Drug Research and Child Health (NEUROFARBA), University of Florence, Florence, Italy
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Lang SA, Bednarsch J, Czigany Z, Joechle K, Kroh A, Amygdalos I, Strnad P, Bruns T, Heise D, Ulmer F, Neumann UP. Liver transplantation in malignant disease. World J Clin Oncol 2021; 12:623-645. [PMID: 34513597 PMCID: PMC8394155 DOI: 10.5306/wjco.v12.i8.623] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Revised: 06/15/2021] [Accepted: 07/23/2021] [Indexed: 02/06/2023] Open
Abstract
Liver transplantation for malignant disease has gained increasing attention as part of transplant oncology. Following the implementation of the Milan criteria, hepatocellular carcinoma (HCC) was the first generally accepted indication for transplantation in patients with cancer. Subsequently, more liberal criteria for HCC have been developed, and research on this topic is still ongoing. The evident success of liver transplantation for HCC has led to the attempt to extend its indication to other malignancies. Regarding perihilar cholangiocarcinoma, more and more evidence supports the use of liver transplantation, especially after neoadjuvant therapy. In addition, some data also show a benefit for selected patients with very early stage intrahepatic cholangiocarcinoma. Hepatic epithelioid hemangioendothelioma is a very rare but nonetheless established indication for liver transplantation in primary liver cancer. In contrast, patients with hepatic angiosarcoma are currently not considered to be optimal candidates. In secondary liver tumors, neuroendocrine cancer liver metastases are an accepted but comparability rare indication for liver transplantation. Recently, some evidence has been published supporting the use of liver transplantation even for colorectal liver metastases. This review summarizes the current evidence for liver transplantation for primary and secondary liver cancer.
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Affiliation(s)
- Sven Arke Lang
- Department of Surgery and Transplantation, University Hospital RWTH Aachen, Aachen 52074, Germany
| | - Jan Bednarsch
- Department of Surgery and Transplantation, University Hospital RWTH Aachen, Aachen 52074, Germany
| | - Zoltan Czigany
- Department of Surgery and Transplantation, University Hospital RWTH Aachen, Aachen 52074, Germany
| | - Katharina Joechle
- Department of Surgery and Transplantation, University Hospital RWTH Aachen, Aachen 52074, Germany
| | - Andreas Kroh
- Department of Surgery and Transplantation, University Hospital RWTH Aachen, Aachen 52074, Germany
| | - Iakovos Amygdalos
- Department of Surgery and Transplantation, University Hospital RWTH Aachen, Aachen 52074, Germany
| | - Pavel Strnad
- Department of Internal Medicine III, University Hospital RWTH Aachen, Aachen 52074, Germany
| | - Tony Bruns
- Department of Internal Medicine III, University Hospital RWTH Aachen, Aachen 52074, Germany
| | - Daniel Heise
- Department of Surgery and Transplantation, University Hospital RWTH Aachen, Aachen 52074, Germany
| | - Florian Ulmer
- Department of Surgery and Transplantation, University Hospital RWTH Aachen, Aachen 52074, Germany
| | - Ulf Peter Neumann
- Department of Surgery and Transplantation, University Hospital RWTH Aachen, Aachen 52074, Germany
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Lucas B, Ravishankar S, Pateva I. Pediatric Primary Hepatic Tumors: Diagnostic Considerations. Diagnostics (Basel) 2021; 11:333. [PMID: 33670452 PMCID: PMC7922091 DOI: 10.3390/diagnostics11020333] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Revised: 02/12/2021] [Accepted: 02/15/2021] [Indexed: 02/06/2023] Open
Abstract
The liver is the third most common site of abdominal tumors in children. This review article aims to summarize current evidence surrounding identification and diagnosis of primary hepatic tumors in the pediatric population based upon clinical presentation, epidemiology, and risk factors as well as classical imaging, histopathological, and molecular diagnostic findings. Readers will be able to recognize the features and distinguish between benign and malignant hepatic tumors within different age groups.
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Affiliation(s)
- Bryony Lucas
- Rainbow Babies and Children’s Hospital—Department of Pediatrics, University Hospitals Cleveland Medical Center, Cleveland, OH 44106, USA
| | - Sanjita Ravishankar
- Rainbow Babies and Children’s Hospital—Department of Pathology, University Hospitals Cleveland Medical Center, Cleveland, OH 44106, USA
| | - Irina Pateva
- Rainbow Babies and Children’s Hospital—Department of Pediatric Hematology and Oncology, University Hospitals Cleveland Medical Center, Cleveland, OH 44106, USA
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Yamoto M, Koyama M, Iwafuchi H, Watanabe K, Urushihara N. Long-term survival with complete resection in recurrent hepatic angiosarcoma. Pediatr Int 2020; 62:1210-1212. [PMID: 33089575 DOI: 10.1111/ped.14287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Revised: 04/27/2020] [Accepted: 04/30/2020] [Indexed: 11/28/2022]
Affiliation(s)
- Masaya Yamoto
- Department of Pediatric Surgery, Shizuoka Children's Hospital, Aoi-ku, Shizuoka, Japan
| | - Masashi Koyama
- Department of Radiology, Shizuoka Children's Hospital, Aoi-ku, Shizuoka, Japan
| | - Hideto Iwafuchi
- Department of Pathology, Shizuoka Children's Hospital, Aoi-ku, Shizuoka, Japan
| | - Kenichiro Watanabe
- Department of Hematology and Oncology, Shizuoka Children's Hospital, Aoi-ku, Shizuoka, Japan
| | - Naoto Urushihara
- Department of Pediatric Surgery, Shizuoka Children's Hospital, Aoi-ku, Shizuoka, Japan
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Sindhi R, Rohan V, Bukowinski A, Tadros S, de Ville de Goyet J, Rapkin L, Ranganathan S. Liver Transplantation for Pediatric Liver Cancer. Cancers (Basel) 2020; 12:cancers12030720. [PMID: 32204368 PMCID: PMC7140094 DOI: 10.3390/cancers12030720] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Revised: 03/10/2020] [Accepted: 03/12/2020] [Indexed: 02/06/2023] Open
Abstract
Unresectable hepatocellular carcinoma (HCC) was first removed successfully with total hepatectomy and liver transplantation (LT) in a child over five decades ago. Since then, children with unresectable liver cancer have benefitted greatly from LT and a confluence of several equally important endeavors. Regional and trans-continental collaborations have accelerated the development and standardization of chemotherapy regimens, which provide disease control to enable LT, and also serve as a test of unresectability. In the process, tumor histology, imaging protocols, and tumor staging have also matured to better assess response and LT candidacy. Significant trends include a steady increase in the incidence of and use of LT for hepatoblastoma, and a significant improvement in survival after LT for HCC with each decade. Although LT is curative for most unresectable primary liver sarcomas, such as embryonal sarcoma, the malignant rhabdoid tumor appears relapse-prone despite chemotherapy and LT. Pediatric liver tumors remain rare, and diagnostic uncertainty in some settings can potentially delay treatment or lead to the selection of less effective chemotherapy. We review the current knowledge relevant to diagnosis, LT candidacy, and post-transplant outcomes for these tumors, emphasizing recent observations made from large registries or larger series.
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Affiliation(s)
- Rakesh Sindhi
- Hillman Center for Pediatric Transplantation, UPMC-Children’s Hospital of Pittsburgh, Pittsburgh, PA 15224, USA; (A.B.); (S.T.)
- Correspondence: ; Tel.: +1-412-692-7123
| | - Vinayak Rohan
- Medical University of South Carolina, Charleston, SC 29403, USA;
| | - Andrew Bukowinski
- Hillman Center for Pediatric Transplantation, UPMC-Children’s Hospital of Pittsburgh, Pittsburgh, PA 15224, USA; (A.B.); (S.T.)
| | - Sameh Tadros
- Hillman Center for Pediatric Transplantation, UPMC-Children’s Hospital of Pittsburgh, Pittsburgh, PA 15224, USA; (A.B.); (S.T.)
| | - Jean de Ville de Goyet
- Mediterranean Institute for Transplantation and Advanced Specialized Therapies (ISMETT), 90127 Palermo, Italy;
| | - Louis Rapkin
- Department of Hematology/Oncology, UPMC-Children’s Hospital of Pittsburgh, Pittsburgh, PA 15224, USA;
| | - Sarangarajan Ranganathan
- Department of Pathology, Children’s Hospital Medical Center of Cincinnati, Cincinnati, OH 45229, USA;
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