1
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De Francesco F, Ogawa R. From Time to Timer in Wound Healing Through the Regeneration. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2024. [PMID: 38842786 DOI: 10.1007/5584_2024_815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2024]
Abstract
Hard-to-heal wounds are an important public health issue worldwide, with a significant impact on the quality of life of patients. It is estimated that approximately 1-2% of the global population suffers from difficult wounds, which can be caused by a variety of factors such as trauma, infections, chronic diseases like diabetes or obesity, or poor health conditions. Hard-to-heal wounds are often characterized by a slow and complicated healing process, which can lead to serious complications such as infections, pressure ulcers, scar tissue formation, and even amputations. These complications can have a significant impact on the mobility, autonomy, and quality of life of patients, leading to an increase in healthcare and social costs associated with wound care. The preparation of the wound bed is a key concept in the management of hard-to-heal wounds, with the aim of promoting an optimal environment for healing. The TIME (Tissue, Infection/Inflammation, Moisture, Edge) model is a systematic approach used to assess and manage wounds in a targeted and personalized way. The concept of TIMER, expanding the TIME model, further focuses on regenerative processes, paying particular attention to promoting tissue regeneration and wound healing in a more effective and comprehensive way. The new element introduced in the TIMER model is "Regeneration", which highlights the importance of activating and supporting tissue regeneration processes to promote complete and lasting wound healing. Regenerative therapies can include a wide range of approaches, including cellular therapies, growth factors, bioactive biomaterials, stem cell therapies, and growth factor therapies. These therapies aim to promote the formation of new healthy tissues, reduce inflammation, improve vascularization, and stimulate cellular proliferation to accelerate wound closure and prevent complications. Thanks to continuous progress in research and development of regenerative therapies, more and more patients suffering from difficult wounds can benefit from innovative and promising solutions to promote faster and more effective healing, improve quality of life, and reduce the risk of long-term complications.
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Affiliation(s)
- Francesco De Francesco
- Department of Reconstructive Surgery and Hand Surgery, Azienda Ospedaliera Universitaria delle Marche, Ancona, Italy.
| | - Rei Ogawa
- Department of Plastic, Reconstructive and Aesthetic Surgery, Nippon Medical School, Tokyo, Japan
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2
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Song X, Hou K, Zhou H, Yang J, Cao T, Zhang J. Liver organoids and their application in liver cancer research. Regen Ther 2024; 25:128-137. [PMID: 38226058 PMCID: PMC10788409 DOI: 10.1016/j.reth.2023.12.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Revised: 11/27/2023] [Accepted: 12/17/2023] [Indexed: 01/17/2024] Open
Abstract
Liver cancer, a common and intractable liver-related disease, is a malignant tumor with a high morbidity, which needs a high treatment cost but still lacks perfect clinical treatment methods. Looking for an effective platform for liver cancer study and drug screening is urgent and important. Traditional analytical methods for liver disease studies mainly rely on the 2D cell culture and animal experiments, which both cannot fully recapitulate physiological and pathological processes of human liver. For example, cell culture can only show basic functions of cells in vitro, while animal models always hold the problem of species divergence. The organoids, a 3D invitro culture system emerged in recent years, is a cell-bound body with different cell types and has partial tissue functions. The organoid technology can reveal the growth state, structure, function and characteristics of the tissue or organ, and plays an important role in reconstructing invitro experimental models that can truly simulate the human liver. In this paper, we will give a brief introduction of liver organoids and review their applications in liver cancer research, especially in liver cancer pathogenesis, drug screening, precision medicine, regenerative medicine, and other fields. We have also discussed advantages and disadvantages of organoids, as well as future directions and perspectives towards liver organoids.
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Affiliation(s)
- Xinyu Song
- Binzhou Medical University, 264003 Yantai, Shandong, China
| | - Kaifei Hou
- Binzhou Medical University, 264003 Yantai, Shandong, China
| | - Hongyan Zhou
- School of Pharmacy, Shandong University of Traditional Chinese Medicine, 250300 Jinan, Shandong, China
| | - Jingyi Yang
- Binzhou Medical University, 264003 Yantai, Shandong, China
| | - Ting Cao
- The First Affiliated Hospital, School of Medicine, Zhejiang University, 310003 Hangzhou, Zhejiang, China
| | - Jiayu Zhang
- School of Traditional Chinese Medicine, Binzhou Medical University, 264003 Yantai, Shandong, China
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3
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Scarsella L, Ehrke-Schulz E, Paulussen M, Thal SC, Ehrhardt A, Aydin M. Advances of Recombinant Adenoviral Vectors in Preclinical and Clinical Applications. Viruses 2024; 16:377. [PMID: 38543743 PMCID: PMC10974029 DOI: 10.3390/v16030377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2023] [Revised: 02/14/2024] [Accepted: 02/19/2024] [Indexed: 05/23/2024] Open
Abstract
Adenoviruses (Ad) have the potential to induce severe infections in vulnerable patient groups. Therefore, understanding Ad biology and antiviral processes is important to comprehend the signaling cascades during an infection and to initiate appropriate diagnostic and therapeutic interventions. In addition, Ad vector-based vaccines have revealed significant potential in generating robust immune protection and recombinant Ad vectors facilitate efficient gene transfer to treat genetic diseases and are used as oncolytic viruses to treat cancer. Continuous improvements in gene delivery capacity, coupled with advancements in production methods, have enabled widespread application in cancer therapy, vaccine development, and gene therapy on a large scale. This review provides a comprehensive overview of the virus biology, and several aspects of recombinant Ad vectors, as well as the development of Ad vector, are discussed. Moreover, we focus on those Ads that were used in preclinical and clinical applications including regenerative medicine, vaccine development, genome engineering, treatment of genetic diseases, and virotherapy in tumor treatment.
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Affiliation(s)
- Luca Scarsella
- Department of Anesthesiology, Center for Clinical and Translational Research, Helios University Hospital Wuppertal, Witten/Herdecke University, 42283 Wuppertal, Germany;
- Virology and Microbiology, Center for Biomedical Education and Research (ZBAF), Department Human Medicine, Faculty of Health, Witten/Herdecke University, 58453 Witten, Germany; (E.E.-S.); (A.E.)
- Laboratory of Experimental Pediatric Pneumology and Allergology, Center for Biomedical Education and Science (ZBAF), Department of Human Medicine, Faculty of Medicine, Witten/Herdecke University, 58453 Witten, Germany
| | - Eric Ehrke-Schulz
- Virology and Microbiology, Center for Biomedical Education and Research (ZBAF), Department Human Medicine, Faculty of Health, Witten/Herdecke University, 58453 Witten, Germany; (E.E.-S.); (A.E.)
| | - Michael Paulussen
- Chair of Pediatrics, University Children’s Hospital, Vestische Kinder- und Jugendklinik Datteln, Witten/Herdecke University, 45711 Datteln, Germany;
| | - Serge C. Thal
- Department of Anesthesiology, Center for Clinical and Translational Research, Helios University Hospital Wuppertal, Witten/Herdecke University, 42283 Wuppertal, Germany;
| | - Anja Ehrhardt
- Virology and Microbiology, Center for Biomedical Education and Research (ZBAF), Department Human Medicine, Faculty of Health, Witten/Herdecke University, 58453 Witten, Germany; (E.E.-S.); (A.E.)
| | - Malik Aydin
- Virology and Microbiology, Center for Biomedical Education and Research (ZBAF), Department Human Medicine, Faculty of Health, Witten/Herdecke University, 58453 Witten, Germany; (E.E.-S.); (A.E.)
- Laboratory of Experimental Pediatric Pneumology and Allergology, Center for Biomedical Education and Science (ZBAF), Department of Human Medicine, Faculty of Medicine, Witten/Herdecke University, 58453 Witten, Germany
- Chair of Pediatrics, University Children’s Hospital, Vestische Kinder- und Jugendklinik Datteln, Witten/Herdecke University, 45711 Datteln, Germany;
- Institute for Medical Laboratory Diagnostics, Center for Clinical and Translational Research, Helios University Hospital Wuppertal, Witten/Herdecke University, 42283 Wuppertal, Germany
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4
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Xiang Y, Yan J, Bao X, Gleadall A, Sun T. Investigation of cell infiltration and colonization in 3D porous scaffolds via integrated experimental and computational strategies. J Biotechnol 2024; 382:78-87. [PMID: 38307299 DOI: 10.1016/j.jbiotec.2024.01.015] [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: 06/29/2023] [Accepted: 01/29/2024] [Indexed: 02/04/2024]
Abstract
This study aimed to integrate experimental and computational methods to systematically investigate cell infiltration and colonization within porous scaffolds. Poly(lactic acid) discs (Diameter: 6 mm; Thickness: 500 µm) with open pores (Diameter: 400-1100 µm), corners (Angle: 30-120°) and gaps (Distance: 100-500 µm), and cellulosic scaffolds with irregular pores (Diameter: 50-300 µm) were situated in tissue culture plates and cultured with human dermal fibroblasts (HDFs). Both phase contrast and scanning electron microscopy revealed that HDFs initially proliferated on scaffold surfaces, then infiltrated into the porous structures via cell bridging and stacking strategies, which was affected by the initial cell seeding densities, porous structures and culture times. Based on the density-dependent cell growths in two-dimensional cell cultures, power law models were developed to quantitatively simulate cell growths on scaffold surfaces. Model analysis predicted the effect of cell seeding efficiency on cell infiltrations into the porous scaffolds, which was further validated via series cell seeding experiments. The novelty of this research lies in the incorporation of multiple experimental and computational strategies, which enables the mechanistic insights of cell invasion and colonization in porous scaffolds, also facilitates the development of suitable bioprocesses for cell seeding and tissue manufacturing in Tissue Engineering and Regenerative Medicine.
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Affiliation(s)
- Yu Xiang
- Department of Materials, Loughborough University, Epinal Way, Loughborough LE11 3TU, UK
| | - Jiongyi Yan
- Wolfson School of Mechanical, Electrical and Manufacturing Engineering, Loughborough University, Epinal Way, Loughborough LE11 3TU, UK
| | - Xujin Bao
- Department of Materials, Loughborough University, Epinal Way, Loughborough LE11 3TU, UK
| | - Andrew Gleadall
- Wolfson School of Mechanical, Electrical and Manufacturing Engineering, Loughborough University, Epinal Way, Loughborough LE11 3TU, UK
| | - Tao Sun
- Department of Chemical Engineering, Loughborough University, Epinal Way, Loughborough LE11 3TU, UK.
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5
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Cumpata AJ, Labusca L, Radulescu LM. Stem Cell-Based Therapies for Auditory Hair Cell Regeneration in the Treatment of Hearing Loss. TISSUE ENGINEERING. PART B, REVIEWS 2024; 30:15-28. [PMID: 37440318 DOI: 10.1089/ten.teb.2023.0084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/15/2023]
Abstract
The incidence and prevalence of hearing loss is increasing globally at an accelerated pace. Hair cells represent the sensory receptors of auditory and vestibular systems. Hair cell absence, loss or degeneration due to congenital diseases, trauma, toxicity, infection or advancing age, results in disabling hearing loss. Regenerative medicine approaches consisting in stem cell-based hair cell rescue or regeneration, gene therapy, as well as cell and tissue engineering are expected to dramatically improve the therapeutic arsenal available for addressing hearing loss. Current strategies that are using different stem cell types to rescue or to induce hair cell proliferation and regeneration are presented. Gene and cell therapy methods that modulates transdifferentiation of surrounding cell types into hair cells are presented, together with their specific advantages and limitations. Several modalities for improving therapeutic targeting to the inner ear such as nanoparticle-mediated cell and gene delivery are introduced. Further steps in building more relevant high-throughput models for testing novel drugs and advanced therapies are proposed as a modality to accelerate translation to clinical settings.
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Affiliation(s)
| | - Luminita Labusca
- Orthopedics and Traumatology Clinic, Emergency Hospital Saint Spiridon, Iasi, Romania
- Magnetic Materials and Sensors, National Institute of Research and Development in Technical Physics, Iasi, Romania
| | - Luminita Mihaela Radulescu
- Doctoral School, "Grigore T. Popa" University of Medicine and Pharmacy, Iasi, Romania
- ENT Clinic Department, "Grigore T. Popa" University of Medicine and Pharmacy, Iasi, Romania
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6
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Santa Cruz-Pavlovich FJ, Bolaños-Chang AJ, Del Rio-Murillo XI, Aranda-Preciado GA, Razura-Ruiz EM, Santos A, Navarro-Partida J. Beyond Vision: An Overview of Regenerative Medicine and Its Current Applications in Ophthalmological Care. Cells 2024; 13:179. [PMID: 38247870 PMCID: PMC10814238 DOI: 10.3390/cells13020179] [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: 12/05/2023] [Revised: 12/23/2023] [Accepted: 12/29/2023] [Indexed: 01/23/2024] Open
Abstract
Regenerative medicine (RM) has emerged as a promising and revolutionary solution to address a range of unmet needs in healthcare, including ophthalmology. Moreover, RM takes advantage of the body's innate ability to repair and replace pathologically affected tissues. On the other hand, despite its immense promise, RM faces challenges such as ethical concerns, host-related immune responses, and the need for additional scientific validation, among others. The primary aim of this review is to present a high-level overview of current strategies in the domain of RM (cell therapy, exosomes, scaffolds, in vivo reprogramming, organoids, and interspecies chimerism), centering around the field of ophthalmology. A search conducted on clinicaltrials.gov unveiled a total of at least 209 interventional trials related to RM within the ophthalmological field. Among these trials, there were numerous early-phase studies, including phase I, I/II, II, II/III, and III trials. Many of these studies demonstrate potential in addressing previously challenging and degenerative eye conditions, spanning from posterior segment pathologies like Age-related Macular Degeneration and Retinitis Pigmentosa to anterior structure diseases such as Dry Eye Disease and Limbal Stem Cell Deficiency. Notably, these therapeutic approaches offer tailored solutions specific to the underlying causes of each pathology, thus allowing for the hopeful possibility of bringing forth a treatment for ocular diseases that previously seemed incurable and significantly enhancing patients' quality of life. As advancements in research and technology continue to unfold, future objectives should focus on ensuring the safety and prolonged viability of transplanted cells, devising efficient delivery techniques, etc.
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Affiliation(s)
- Francisco J. Santa Cruz-Pavlovich
- Tecnologico de Monterrey, Escuela de Medicina y Ciencias de la Salud, Monterrey 64849, Mexico; (F.J.S.C.-P.); (A.J.B.-C.); (X.I.D.R.-M.); (E.M.R.-R.); (A.S.)
| | - Andres J. Bolaños-Chang
- Tecnologico de Monterrey, Escuela de Medicina y Ciencias de la Salud, Monterrey 64849, Mexico; (F.J.S.C.-P.); (A.J.B.-C.); (X.I.D.R.-M.); (E.M.R.-R.); (A.S.)
| | - Ximena I. Del Rio-Murillo
- Tecnologico de Monterrey, Escuela de Medicina y Ciencias de la Salud, Monterrey 64849, Mexico; (F.J.S.C.-P.); (A.J.B.-C.); (X.I.D.R.-M.); (E.M.R.-R.); (A.S.)
| | | | - Esmeralda M. Razura-Ruiz
- Tecnologico de Monterrey, Escuela de Medicina y Ciencias de la Salud, Monterrey 64849, Mexico; (F.J.S.C.-P.); (A.J.B.-C.); (X.I.D.R.-M.); (E.M.R.-R.); (A.S.)
| | - Arturo Santos
- Tecnologico de Monterrey, Escuela de Medicina y Ciencias de la Salud, Monterrey 64849, Mexico; (F.J.S.C.-P.); (A.J.B.-C.); (X.I.D.R.-M.); (E.M.R.-R.); (A.S.)
| | - Jose Navarro-Partida
- Tecnologico de Monterrey, Escuela de Medicina y Ciencias de la Salud, Monterrey 64849, Mexico; (F.J.S.C.-P.); (A.J.B.-C.); (X.I.D.R.-M.); (E.M.R.-R.); (A.S.)
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7
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Elliott MAT, Schweiger HE, Robbins A, Vera-Choqqueccota S, Ehrlich D, Hernandez S, Voitiuk K, Geng J, Sevetson JL, Core C, Rosen YM, Teodorescu M, Wagner NO, Haussler D, Mostajo-Radji MA. Internet-Connected Cortical Organoids for Project-Based Stem Cell and Neuroscience Education. eNeuro 2023; 10:ENEURO.0308-23.2023. [PMID: 38016807 PMCID: PMC10755643 DOI: 10.1523/eneuro.0308-23.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2023] [Revised: 10/16/2023] [Accepted: 11/20/2023] [Indexed: 11/30/2023] Open
Abstract
The introduction of Internet-connected technologies to the classroom has the potential to revolutionize STEM education by allowing students to perform experiments in complex models that are unattainable in traditional teaching laboratories. By connecting laboratory equipment to the cloud, we introduce students to experimentation in pluripotent stem cell (PSC)-derived cortical organoids in two different settings: using microscopy to monitor organoid growth in an introductory tissue culture course and using high-density (HD) multielectrode arrays (MEAs) to perform neuronal stimulation and recording in an advanced neuroscience mathematics course. We demonstrate that this approach develops interest in stem cell and neuroscience in the students of both courses. All together, we propose cloud technologies as an effective and scalable approach for complex project-based university training.
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Affiliation(s)
- Matthew A T Elliott
- Genomics Institute, University of California Santa Cruz, Santa Cruz, CA 95060
- Live Cell Biotechnology Discovery Lab, University of California Santa Cruz, Santa Cruz, CA 95060
- Department of Biomolecular Engineering, University of California Santa Cruz, Santa Cruz, CA 95060
| | - Hunter E Schweiger
- Genomics Institute, University of California Santa Cruz, Santa Cruz, CA 95060
- Live Cell Biotechnology Discovery Lab, University of California Santa Cruz, Santa Cruz, CA 95060
- Department of Molecular, Cell and Developmental Biology, University of California Santa Cruz, Santa Cruz, CA 95060
| | - Ash Robbins
- Genomics Institute, University of California Santa Cruz, Santa Cruz, CA 95060
- Live Cell Biotechnology Discovery Lab, University of California Santa Cruz, Santa Cruz, CA 95060
- Department of Electrical and Computer Engineering, University of California Santa Cruz, Santa Cruz, CA 95060
| | - Samira Vera-Choqqueccota
- Genomics Institute, University of California Santa Cruz, Santa Cruz, CA 95060
- Live Cell Biotechnology Discovery Lab, University of California Santa Cruz, Santa Cruz, CA 95060
- Department of Biomolecular Engineering, University of California Santa Cruz, Santa Cruz, CA 95060
| | - Drew Ehrlich
- Genomics Institute, University of California Santa Cruz, Santa Cruz, CA 95060
- Live Cell Biotechnology Discovery Lab, University of California Santa Cruz, Santa Cruz, CA 95060
- Department of Computational Media, University of California Santa Cruz, Santa Cruz, CA 95060
| | - Sebastian Hernandez
- Genomics Institute, University of California Santa Cruz, Santa Cruz, CA 95060
- Live Cell Biotechnology Discovery Lab, University of California Santa Cruz, Santa Cruz, CA 95060
- Department of Electrical and Computer Engineering, University of California Santa Cruz, Santa Cruz, CA 95060
| | - Kateryna Voitiuk
- Genomics Institute, University of California Santa Cruz, Santa Cruz, CA 95060
- Live Cell Biotechnology Discovery Lab, University of California Santa Cruz, Santa Cruz, CA 95060
- Department of Biomolecular Engineering, University of California Santa Cruz, Santa Cruz, CA 95060
| | - Jinghui Geng
- Genomics Institute, University of California Santa Cruz, Santa Cruz, CA 95060
- Live Cell Biotechnology Discovery Lab, University of California Santa Cruz, Santa Cruz, CA 95060
- Department of Electrical and Computer Engineering, University of California Santa Cruz, Santa Cruz, CA 95060
| | - Jess L Sevetson
- Genomics Institute, University of California Santa Cruz, Santa Cruz, CA 95060
- Department of Molecular, Cell and Developmental Biology, University of California Santa Cruz, Santa Cruz, CA 95060
| | - Cordero Core
- Scientific Software Engineering Center, eScience Institute, University of Washington, Seattle, WA 98195
| | - Yohei M Rosen
- Genomics Institute, University of California Santa Cruz, Santa Cruz, CA 95060
- Live Cell Biotechnology Discovery Lab, University of California Santa Cruz, Santa Cruz, CA 95060
| | - Mircea Teodorescu
- Genomics Institute, University of California Santa Cruz, Santa Cruz, CA 95060
- Live Cell Biotechnology Discovery Lab, University of California Santa Cruz, Santa Cruz, CA 95060
- Department of Biomolecular Engineering, University of California Santa Cruz, Santa Cruz, CA 95060
- Department of Electrical and Computer Engineering, University of California Santa Cruz, Santa Cruz, CA 95060
| | - Nico O Wagner
- College of Arts and Sciences, University of San Francisco, San Francisco, CA 94117
| | - David Haussler
- Genomics Institute, University of California Santa Cruz, Santa Cruz, CA 95060
- Live Cell Biotechnology Discovery Lab, University of California Santa Cruz, Santa Cruz, CA 95060
- Department of Biomolecular Engineering, University of California Santa Cruz, Santa Cruz, CA 95060
| | - Mohammed A Mostajo-Radji
- Genomics Institute, University of California Santa Cruz, Santa Cruz, CA 95060
- Live Cell Biotechnology Discovery Lab, University of California Santa Cruz, Santa Cruz, CA 95060
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8
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Jain N, Kourampi I, Umar TP, Almansoor ZR, Anand A, Ur Rehman ME, Jain S, Reinis A. Global population surpasses eight billion: Are we ready for the next billion? AIMS Public Health 2023; 10:849-866. [PMID: 38187896 PMCID: PMC10764969 DOI: 10.3934/publichealth.2023056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Revised: 10/10/2023] [Accepted: 10/15/2023] [Indexed: 01/09/2024] Open
Abstract
In November 2022, the global population had officially crossed eight billion. It has long been recognized that socioeconomic or health-related problems in the community always accompany an uncontrolled population expansion. International calls have been made regarding lack of universal health coverage, an insufficient supply of healthcare providers, the burden of noncommunicable disease, population aging and the difficulty in obtaining safe drinking water and food. The present health policy paper discusses how to conquer these crowded world issues, including (1) promoting government and international organization participation in providing appropriate infrastructure, funding and distribution to assist people's health and well-being; (2) shifting health program towards a more preventive approach and (3) reducing inequalities, particularly for the marginalized, isolated and underrepresented population. These fundamental principles of health policy delivery as a response to an increasingly crowded world and its challenges are crucial for reducing the burden associated with excessive healthcare costs, decreased productivity and deteriorating environmental quality.
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Affiliation(s)
- Nityanand Jain
- Faculty of Medicine, Riga Stradinš University, 16 Dzirciema street, Riga, Latvia, LV-1007
| | - Islam Kourampi
- Department of Medicine, National and Kapodistrian University of Athens, Mikras Asias 75, Athens, Greece, 11527
| | - Tungki Pratama Umar
- UCL Centre for Nanotechnology and Regenerative Medicine, Division of Surgery and Interventional Science, University College London, London, United Kingdom
- Faculty of Medicine, Universitas Sriwijaya, Palembang, Indonesia 30128
| | - Zahra Rose Almansoor
- Faculty of Biology, Medicine and Health, The University of Manchester, Oxford Rd, Manchester M13 9PL, United Kingdom
| | - Ayush Anand
- BP Koirala Institute of Health Sciences, Buddha Road, Dharan 56700, Nepal
| | | | - Shivani Jain
- Department of Oral and Maxillofacial Surgery, Genesis Institute of Dental Sciences & Research, Ferozepur-Moga Road, Ferozepur, Punjab, India 152002
| | - Aigars Reinis
- Department of Biology and Microbiology, Riga Stradinš University, 16 Dzirciema street, Riga, Latvia, LV-1007
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9
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Li S, Yu Q, Li H, Chen M, Jin Y, Liu D. Self-Assembled Peptide Hydrogels in Regenerative Medicine. Gels 2023; 9:653. [PMID: 37623108 PMCID: PMC10453854 DOI: 10.3390/gels9080653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 08/09/2023] [Accepted: 08/10/2023] [Indexed: 08/26/2023] Open
Abstract
Regenerative medicine is a complex discipline that is becoming a hot research topic. Skin, bone, and nerve regeneration dominate current treatments in regenerative medicine. A new type of drug is urgently needed for their treatment due to their high vulnerability to damage and weak self-repairing ability. A self-assembled peptide hydrogel is a good scaffolding material in regenerative medicine because it is similar to the cytoplasmic matrix environment; it promotes cell adhesion, migration, proliferation, and division; and its degradation products are natural and harmless proteins. However, fewer studies have examined the specific mechanisms of self-assembled peptide hydrogels in promoting tissue regeneration. This review summarizes the applications and mechanisms of self-assembled short peptide and peptide hydrogels in skin, bone, and neural healing to improve their applications in tissue healing and regeneration.
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Affiliation(s)
- Shuangyang Li
- School of Pharmacy, Changchun University of Chinese Medicine, Changchun 130117, China; (S.L.); (Q.Y.); (H.L.); (M.C.)
| | - Qixuan Yu
- School of Pharmacy, Changchun University of Chinese Medicine, Changchun 130117, China; (S.L.); (Q.Y.); (H.L.); (M.C.)
| | - Hongpeng Li
- School of Pharmacy, Changchun University of Chinese Medicine, Changchun 130117, China; (S.L.); (Q.Y.); (H.L.); (M.C.)
| | - Meiqi Chen
- School of Pharmacy, Changchun University of Chinese Medicine, Changchun 130117, China; (S.L.); (Q.Y.); (H.L.); (M.C.)
| | - Ye Jin
- Northeast Asia Research Institute of Traditional Chinese Medicine, Changchun University of Chinese Medicine, Changchun 130117, China
| | - Da Liu
- School of Pharmacy, Changchun University of Chinese Medicine, Changchun 130117, China; (S.L.); (Q.Y.); (H.L.); (M.C.)
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10
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Elliott MA, Schweiger HE, Robbins A, Vera-Choqqueccota S, Ehrlich D, Hernandez S, Voitiuk K, Geng J, Sevetson JL, Rosen YM, Teodorescu M, Wagner NO, Haussler D, Mostajo-Radji MA. Internet-connected cortical organoids for project-based stem cell and neuroscience education. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.07.13.546418. [PMID: 37503236 PMCID: PMC10369936 DOI: 10.1101/2023.07.13.546418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/29/2023]
Abstract
The introduction of internet-connected technologies to the classroom has the potential to revolutionize STEM education by allowing students to perform experiments in complex models that are unattainable in traditional teaching laboratories. By connecting laboratory equipment to the cloud, we introduce students to experimentation in pluripotent stem cell-derived cortical organoids in two different settings: Using microscopy to monitor organoid growth in an introductory tissue culture course, and using high density multielectrode arrays to perform neuronal stimulation and recording in an advanced neuroscience mathematics course. We demonstrate that this approach develops interest in stem cell and neuroscience in the students of both courses. All together, we propose cloud technologies as an effective and scalable approach for complex project-based university training.
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Affiliation(s)
- Matthew A.T. Elliott
- Genomics Institute, University of California Santa Cruz, Santa Cruz, CA, 95060, USA
- Live Cell Biotechnology Discovery Lab, University of California Santa Cruz, Santa Cruz, CA, 95060, USA
- Department of Biomolecular Engineering, University of California Santa Cruz, Santa Cruz, CA, 95060, USA
| | - Hunter E. Schweiger
- Genomics Institute, University of California Santa Cruz, Santa Cruz, CA, 95060, USA
- Live Cell Biotechnology Discovery Lab, University of California Santa Cruz, Santa Cruz, CA, 95060, USA
- Department of Molecular, Cell and Developmental Biology, University of California Santa Cruz, Santa Cruz, CA, 95060, USA
| | - Ash Robbins
- Genomics Institute, University of California Santa Cruz, Santa Cruz, CA, 95060, USA
- Live Cell Biotechnology Discovery Lab, University of California Santa Cruz, Santa Cruz, CA, 95060, USA
- Department of Electrical and Computer Engineering, University of California Santa Cruz, Santa Cruz, CA, 95060, USA
| | - Samira Vera-Choqqueccota
- Genomics Institute, University of California Santa Cruz, Santa Cruz, CA, 95060, USA
- Live Cell Biotechnology Discovery Lab, University of California Santa Cruz, Santa Cruz, CA, 95060, USA
- Department of Biomolecular Engineering, University of California Santa Cruz, Santa Cruz, CA, 95060, USA
| | - Drew Ehrlich
- Genomics Institute, University of California Santa Cruz, Santa Cruz, CA, 95060, USA
- Live Cell Biotechnology Discovery Lab, University of California Santa Cruz, Santa Cruz, CA, 95060, USA
- Department of Computational Media, University of California Santa Cruz, Santa Cruz, CA, 95060, USA
| | - Sebastian Hernandez
- Genomics Institute, University of California Santa Cruz, Santa Cruz, CA, 95060, USA
- Live Cell Biotechnology Discovery Lab, University of California Santa Cruz, Santa Cruz, CA, 95060, USA
- Department of Electrical and Computer Engineering, University of California Santa Cruz, Santa Cruz, CA, 95060, USA
| | - Kateryna Voitiuk
- Genomics Institute, University of California Santa Cruz, Santa Cruz, CA, 95060, USA
- Live Cell Biotechnology Discovery Lab, University of California Santa Cruz, Santa Cruz, CA, 95060, USA
- Department of Biomolecular Engineering, University of California Santa Cruz, Santa Cruz, CA, 95060, USA
| | - Jinghui Geng
- Genomics Institute, University of California Santa Cruz, Santa Cruz, CA, 95060, USA
- Live Cell Biotechnology Discovery Lab, University of California Santa Cruz, Santa Cruz, CA, 95060, USA
- Department of Electrical and Computer Engineering, University of California Santa Cruz, Santa Cruz, CA, 95060, USA
| | - Jess L. Sevetson
- Genomics Institute, University of California Santa Cruz, Santa Cruz, CA, 95060, USA
- Department of Molecular, Cell and Developmental Biology, University of California Santa Cruz, Santa Cruz, CA, 95060, USA
| | - Yohei M. Rosen
- Genomics Institute, University of California Santa Cruz, Santa Cruz, CA, 95060, USA
- Live Cell Biotechnology Discovery Lab, University of California Santa Cruz, Santa Cruz, CA, 95060, USA
| | - Mircea Teodorescu
- Genomics Institute, University of California Santa Cruz, Santa Cruz, CA, 95060, USA
- Live Cell Biotechnology Discovery Lab, University of California Santa Cruz, Santa Cruz, CA, 95060, USA
- Department of Biomolecular Engineering, University of California Santa Cruz, Santa Cruz, CA, 95060, USA
- Department of Electrical and Computer Engineering, University of California Santa Cruz, Santa Cruz, CA, 95060, USA
| | - Nico O. Wagner
- College of Arts and Sciences, University of San Francisco, San Francisco, CA, 94117, USA
| | - David Haussler
- Genomics Institute, University of California Santa Cruz, Santa Cruz, CA, 95060, USA
- Live Cell Biotechnology Discovery Lab, University of California Santa Cruz, Santa Cruz, CA, 95060, USA
- Department of Biomolecular Engineering, University of California Santa Cruz, Santa Cruz, CA, 95060, USA
| | - Mohammed A. Mostajo-Radji
- Genomics Institute, University of California Santa Cruz, Santa Cruz, CA, 95060, USA
- Live Cell Biotechnology Discovery Lab, University of California Santa Cruz, Santa Cruz, CA, 95060, USA
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11
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Kalhori MR, Soleimani M, Alibakhshi R, Kalhori AA, Mohamadi P, Azreh R, Farzaei MH. The Potential of miR-21 in Stem Cell Differentiation and its Application in Tissue Engineering and Regenerative Medicine. Stem Cell Rev Rep 2023; 19:1232-1251. [PMID: 36899116 DOI: 10.1007/s12015-023-10510-8] [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] [Accepted: 01/18/2023] [Indexed: 03/12/2023]
Abstract
MicroRNAs (miRNAs) and long non-coding RNAs (lncRNAs) are two important types of non-coding RNAs that are not translated into protein. These molecules can regulate various biological processes, including stem cell differentiation and self-renewal. One of the first known miRNAs in mammals is miR-21. Cancer-related studies have shown that this miRNA has proto-oncogene activity and is elevated in cancers. However, it is confirmed that miR-21 inhibits stem cell pluripotency and self-renewal and induces differentiation by targeting various genes. Regenerative medicine is a field of medical science that tries to regenerate and repair damaged tissues. Various studies have shown that miR-21 plays an essential role in regenerative medicine by affecting stem cell proliferation and differentiation. In this review, we will discuss the function of miR-21 in regenerative medicine of the liver, nerve, spinal cord, wound, bone, and dental tissues. In addition, the function of natural compounds and lncRNAs will be analyzed as potential regulators of miR-21 expression in regenerative medicine.
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Affiliation(s)
- Mohammad Reza Kalhori
- Regenerative Medicine Research Center, Kermanshah University of Medical Sciences, Kermanshah, Iran.
| | - Masoud Soleimani
- Department of Hematology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Reza Alibakhshi
- Department of Biochemistry, School of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Amir Ali Kalhori
- Regenerative Medicine Research Center, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Parisa Mohamadi
- Department of Tissue Engineering and Applied Cell Sciences, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical, Sciences, Tehran, Iran
- Medical Biology Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Rasoul Azreh
- Department of Medical Genetics, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mohammad Hosien Farzaei
- Medical Technology Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
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12
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Arjmand B, Alavi-Moghadam S, Aghayan HR, Rezaei-Tavirani M, Goodarzi P, Tayanloo-Beik A, Biglar M, Rajaeinejad M, Shouroki FF, Larijani B. How to establish infrastructures to achieve more efficient regenerative medicine? Cell Tissue Bank 2023; 24:1-9. [PMID: 35871425 DOI: 10.1007/s10561-022-10028-2] [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: 11/11/2021] [Accepted: 07/12/2022] [Indexed: 11/25/2022]
Abstract
The field of regenerative medicine (RM) as an innovative technology has the ability to affect the healthcare system. It develops a variety of techniques through stem cell biology, genetics, bioengineering, biomaterial science, and tissue engineering to replace or restore the role of lost, disabled, or aging cells in the human body. However, the field's proficiency has still been underwhelming at the clinical trial level. This could be due to the innovation of such technologies, as well as their incredible nature. Therefore, managing the infrastructure framework for the safe and efficient application of the aforementioned field of science would help in the process of progress. In this context, the current review focuses on how to establish infrastructures for more effective RM.
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Affiliation(s)
- Babak Arjmand
- Cell Therapy and Regenerative Medicine Research Center, Endocrinology and Metabolism Molecular-Cellular Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran.
| | - Sepideh Alavi-Moghadam
- Cell Therapy and Regenerative Medicine Research Center, Endocrinology and Metabolism Molecular-Cellular Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Hamid Reza Aghayan
- Cell Therapy and Regenerative Medicine Research Center, Endocrinology and Metabolism Molecular-Cellular Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | | | - Parisa Goodarzi
- Cell Therapy and Regenerative Medicine Research Center, Endocrinology and Metabolism Molecular-Cellular Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Akram Tayanloo-Beik
- Cell Therapy and Regenerative Medicine Research Center, Endocrinology and Metabolism Molecular-Cellular Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Mahmood Biglar
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohsen Rajaeinejad
- AJA Cancer Epidemiology Research and Treatment Center (AJA-CERTC), AJA University of Medical Sciences, Tehran, Iran
| | - Fatemeh Fazeli Shouroki
- Cell Therapy and Regenerative Medicine Research Center, Endocrinology and Metabolism Molecular-Cellular Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Bagher Larijani
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran.
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13
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Amengual-Tugores AM, Ráez-Meseguer C, Forteza-Genestra MA, Monjo M, Ramis JM. Extracellular Vesicle-Based Hydrogels for Wound Healing Applications. Int J Mol Sci 2023; 24:ijms24044104. [PMID: 36835516 PMCID: PMC9967521 DOI: 10.3390/ijms24044104] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 02/13/2023] [Accepted: 02/14/2023] [Indexed: 02/22/2023] Open
Abstract
Hydrogels and extracellular vesicle-based therapies have been proposed as emerging therapeutic assets in wound closure. The combination of these elements has given good results in managing chronic and acute wounds. The intrinsic characteristics of the hydrogels in which the extracellular vesicles (EVs) are loaded allow for overcoming barriers, such as the sustained and controlled release of EVs and the maintenance of the pH for their conservation. In addition, EVs can be obtained from different sources and through several isolation methods. However, some barriers must be overcome to transfer this type of therapy to the clinic, for example, the production of hydrogels containing functional EVs and identifying long-term storage conditions for EVs. The aim of this review is to describe the reported EV-based hydrogel combinations, along with the obtained results, and analyze future perspectives.
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Affiliation(s)
- Andreu Miquel Amengual-Tugores
- Cell Therapy and Tissue Engineering Group, Research Institute on Health Sciences (IUNICS), University of the Balearic Islands (UIB), Ctra. Valldemossa km 7.5, 07122 Palma, Spain
- Health Research Institute of the Balearic Islands (IdISBa), 07120 Palma, Spain
| | - Carmen Ráez-Meseguer
- Cell Therapy and Tissue Engineering Group, Research Institute on Health Sciences (IUNICS), University of the Balearic Islands (UIB), Ctra. Valldemossa km 7.5, 07122 Palma, Spain
- Health Research Institute of the Balearic Islands (IdISBa), 07120 Palma, Spain
| | - Maria Antònia Forteza-Genestra
- Cell Therapy and Tissue Engineering Group, Research Institute on Health Sciences (IUNICS), University of the Balearic Islands (UIB), Ctra. Valldemossa km 7.5, 07122 Palma, Spain
- Health Research Institute of the Balearic Islands (IdISBa), 07120 Palma, Spain
| | - Marta Monjo
- Cell Therapy and Tissue Engineering Group, Research Institute on Health Sciences (IUNICS), University of the Balearic Islands (UIB), Ctra. Valldemossa km 7.5, 07122 Palma, Spain
- Health Research Institute of the Balearic Islands (IdISBa), 07120 Palma, Spain
- Departament de Biologia Fonamental i Ciències de la Salut, University of the Balearic Islands (UIB), 07122 Palma, Spain
- Correspondence: (M.M.); (J.M.R.); Tel.: +34-971-25-96-07 (J.M.R.)
| | - Joana M. Ramis
- Cell Therapy and Tissue Engineering Group, Research Institute on Health Sciences (IUNICS), University of the Balearic Islands (UIB), Ctra. Valldemossa km 7.5, 07122 Palma, Spain
- Health Research Institute of the Balearic Islands (IdISBa), 07120 Palma, Spain
- Departament de Biologia Fonamental i Ciències de la Salut, University of the Balearic Islands (UIB), 07122 Palma, Spain
- Correspondence: (M.M.); (J.M.R.); Tel.: +34-971-25-96-07 (J.M.R.)
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14
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de Kanter AFJ, Jongsma KR, Verhaar MC, Bredenoord AL. The Ethical Implications of Tissue Engineering for Regenerative Purposes: A Systematic Review. TISSUE ENGINEERING PART B: REVIEWS 2022; 29:167-187. [PMID: 36112697 PMCID: PMC10122262 DOI: 10.1089/ten.teb.2022.0033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Tissue Engineering (TE) is a branch of Regenerative Medicine (RM) that combines stem cells and biomaterial scaffolds to create living tissue constructs to restore patients' organs after injury or disease. Over the last decade, emerging technologies such as 3D bioprinting, biofabrication, supramolecular materials, induced pluripotent stem cells, and organoids have entered the field. While this rapidly evolving field is expected to have great therapeutic potential, its development from bench to bedside presents several ethical and societal challenges. To make sure TE will reach its ultimate goal of improving patient welfare, these challenges should be mapped out and evaluated. Therefore, we performed a systematic review of the ethical implications of the development and application of TE for regenerative purposes, as mentioned in the academic literature. A search query in PubMed, Embase, Scopus, and PhilPapers yielded 2451 unique articles. After systematic screening, 237 relevant ethical and biomedical articles published between 2008 and 2021 were included in our review. We identified a broad range of ethical implications that could be categorized under 10 themes. Seven themes trace the development from bench to bedside: (1) animal experimentation, (2) handling human tissue, (3) informed consent, (4) therapeutic potential, (5) risk and safety, (6) clinical translation, and (7) societal impact. Three themes represent ethical safeguards relevant to all developmental phases: (8) scientific integrity, (9) regulation, and (10) patient and public involvement. This review reveals that since 2008 a significant body of literature has emerged on how to design clinical trials for TE in a responsible manner. However, several topics remain in need of more attention. These include the acceptability of alternative translational pathways outside clinical trials, soft impacts on society and questions of ownership over engineered tissues. Overall, this overview of the ethical and societal implications of the field will help promote responsible development of new interventions in TE and RM. It can also serve as a valuable resource and educational tool for scientists, engineers, and clinicians in the field by providing an overview of the ethical considerations relevant to their work. Impact statement To our knowledge, this is the first time that the ethical implications of Tissue Engineering (TE) have been reviewed systematically. By gathering existing scholarly work and identifying knowledge gaps, this review facilitates further research into the ethical and societal implications of TE and Regenerative Medicine (RM) and other emerging biomedical technologies. Moreover, it will serve as a valuable resource and educational tool for scientists, engineers, and clinicians in the field by providing an overview of the ethical considerations relevant to their work. As such, our review may promote successful and responsible development of new strategies in TE and RM.
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Affiliation(s)
- Anne-Floor Johanna de Kanter
- University Medical Centre Utrecht, Department of Medical Humanities, Julius Center for Health Sciences and Primary Care, Stratenum 6.131, PO Box 85500, Utrecht, Utrecht, Netherlands, 3508 GA,
| | - Karin Rolanda Jongsma
- University Medical Centre Utrecht, Department of Medical Humanities, Julius Center for Health Sciences and Primary Care, Utrecht, Netherlands,
| | - Marianne C Verhaar
- University Medical Centre Utrecht, Department of Nephrology and Hypertension, Utrecht, Netherlands,
| | - Annelien L Bredenoord
- University Medical Centre Utrecht, Department of Medical Humanities, Julius Center for Health Sciences and Primary Care, Utrecht, Netherlands
- Erasmus University Rotterdam, Erasmus School of Philosophy, Rotterdam, Netherlands,
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15
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Regenerative Medicine: Pharmacological Considerations and Clinical Role in Pain Management. Curr Pain Headache Rep 2022; 26:751-765. [PMID: 36074255 PMCID: PMC9453705 DOI: 10.1007/s11916-022-01078-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/27/2022] [Indexed: 11/17/2022]
Abstract
Purpose of Review Low back pain affects at least 80% of individuals at some point in their lifetime and is the fifth most common reason for physician visits in the USA. Treatment of an acute episode of LBP generally includes rest, activity modification, physical therapy, NSAIDs, and patient education. Recent Findings A small percentage of patients will develop chronic pain lasting > 6 months duration. Platelet-rich plasma (PRP) is one of the main pillars of regenerative medicine, as its release of bioactive proteins supports the aim of RM of restoring the anatomical function in degenerative conditions. Mesenchymal stem cells (MSCs) are multipotent stem cells, multipotent progenitor cells, or marrow stromal cells found in various body tissues, including bone marrow, lung, and adipose tissue. Evidence from well-designed case–control or cohort studies for the use of PRP and MSCs in lumbar facet joint, lumbar epidural, and sacroiliac joint injections is currently described as level IV evidence. PRP and MSCs are used autogenously to help facilitate the healing process, and their injection has been studied in the long-term management of discogenic low back pain. PRP has been compared to steroid injections in the sacroiliac joint for chronic low back pain, with favorable results. MSCs have also been shown to be useful in intervertebral disc regeneration and treatment of chronic low back pain associated with degenerative disc disease. Summary Currently, the price for these treatments is extremely high, and thus the standard of care continues to be steroid injections and other treatments. This could change, however, with more robust data and research on the safety and long-term efficacy of biologics compared to other interventional management.
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16
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Adewale P, Yancheshmeh MS, Lam E. Starch modification for non-food, industrial applications: Market intelligence and critical review. Carbohydr Polym 2022; 291:119590. [DOI: 10.1016/j.carbpol.2022.119590] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Revised: 04/20/2022] [Accepted: 05/05/2022] [Indexed: 12/15/2022]
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17
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W Sandoval AG, Traktuev DO, March KL. Development of a student-driven undergraduate program in regenerative medicine. Regen Med 2022; 17:755-765. [PMID: 35924471 DOI: 10.2217/rme-2022-0069] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
As it begins to enter the clinic, regenerative medicine has the potential to revolutionize healthcare. Although there exists a growing need for individuals well-versed in the practice of regenerative medicine, few undergraduate institutions offer opportunities to learn about the topic. This article highlights the conception of two novel undergraduate courses in regenerative medicine developed through collaboration between students and faculty at our University to fill this void in the undergraduate curriculum. Lectures from scientists, healthcare professionals, regulatory experts and biotechnology leaders introduced students to regenerative medicine research and the translational process, and a certificate program incorporating relevant coursework and research experience is in development. This pipeline will guide promising undergraduate students to the field of regenerative medicine.
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Affiliation(s)
- Aaron Gabriel W Sandoval
- University of Florida Center for Regenerative Medicine, Gainesville, FL 32610, USA.,Wellcome-MRC Cambridge Stem Cell Institute, University of Cambridge, Cambridge, CB2 0AW, UK.,Faculty of Life Sciences & Medicine, King's College London, London, SE1 1UL, UK
| | - Dmitry O Traktuev
- University of Florida Center for Regenerative Medicine, Gainesville, FL 32610, USA.,Division of Cardiovascular Medicine, University of Florida College of Medicine, Gainesville, FL 32610, USA
| | - Keith L March
- University of Florida Center for Regenerative Medicine, Gainesville, FL 32610, USA.,Division of Cardiovascular Medicine, University of Florida College of Medicine, Gainesville, FL 32610, USA
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18
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Wolf BJ, Kusch K, Hunniford V, Vona B, Kühler R, Keppeler D, Strenzke N, Moser T. Is there an unmet medical need for improved hearing restoration? EMBO Mol Med 2022; 14:e15798. [PMID: 35833443 PMCID: PMC9358394 DOI: 10.15252/emmm.202215798] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Revised: 05/12/2022] [Accepted: 06/02/2022] [Indexed: 12/26/2022] Open
Abstract
Hearing impairment, the most prevalent sensory deficit, affects more than 466 million people worldwide (WHO). We presently lack causative treatment for the most common form, sensorineural hearing impairment; hearing aids and cochlear implants (CI) remain the only means of hearing restoration. We engaged with CI users to learn about their expectations and their willingness to collaborate with health care professionals on establishing novel therapies. We summarize upcoming CI innovations, gene therapies, and regenerative approaches and evaluate the chances for clinical translation of these novel strategies. We conclude that there remains an unmet medical need for improving hearing restoration and that we are likely to witness the clinical translation of gene therapy and major CI innovations within this decade.
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Affiliation(s)
- Bettina Julia Wolf
- Institute for Auditory Neuroscience and InnerEarLab, University Medical Center Göttingen, Göttingen, Germany.,Auditory Neuroscience and Optogenetics Laboratory, German Primate Center, Göttingen, Germany.,Auditory Neuroscience & Synaptic Nanophysiology Group, Max-Planck-Institute for Multidisciplinary Sciences, Göttingen, Germany.,Cluster of Excellence "Multiscale Bioimaging: from Molecular Machines to Networks of Excitable Cells" (MBExC), University of Göttingen, Göttingen, Germany
| | - Kathrin Kusch
- Institute for Auditory Neuroscience and InnerEarLab, University Medical Center Göttingen, Göttingen, Germany.,Functional Auditory Genomics Group, Auditory Neuroscience and Optogenetics Laboratory, German Primate Center, Göttingen, Germany
| | - Victoria Hunniford
- Institute for Auditory Neuroscience and InnerEarLab, University Medical Center Göttingen, Göttingen, Germany.,Sensory and Motor Neuroscience PhD Program, Göttingen Graduate Center for Neurosciences, Biophysics, and Molecular Biosciences, Göttingen, Germany
| | - Barbara Vona
- Institute for Auditory Neuroscience and InnerEarLab, University Medical Center Göttingen, Göttingen, Germany.,Institute of Human Genetics, University Medical Center Göttingen, Göttingen, Germany
| | - Robert Kühler
- Department of Otolaryngology, University Medical Center Göttingen, Göttingen, Germany
| | - Daniel Keppeler
- Institute for Auditory Neuroscience and InnerEarLab, University Medical Center Göttingen, Göttingen, Germany.,Auditory Neuroscience & Synaptic Nanophysiology Group, Max-Planck-Institute for Multidisciplinary Sciences, Göttingen, Germany
| | - Nicola Strenzke
- Institute for Auditory Neuroscience and InnerEarLab, University Medical Center Göttingen, Göttingen, Germany.,Department of Otolaryngology, University Medical Center Göttingen, Göttingen, Germany.,Collaborative Research Center 889, University of Göttingen, Göttingen, Germany
| | - Tobias Moser
- Institute for Auditory Neuroscience and InnerEarLab, University Medical Center Göttingen, Göttingen, Germany.,Auditory Neuroscience and Optogenetics Laboratory, German Primate Center, Göttingen, Germany.,Auditory Neuroscience & Synaptic Nanophysiology Group, Max-Planck-Institute for Multidisciplinary Sciences, Göttingen, Germany.,Cluster of Excellence "Multiscale Bioimaging: from Molecular Machines to Networks of Excitable Cells" (MBExC), University of Göttingen, Göttingen, Germany.,Collaborative Research Center 889, University of Göttingen, Göttingen, Germany
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19
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Applications of Ultrasound-Mediated Gene Delivery in Regenerative Medicine. Bioengineering (Basel) 2022; 9:bioengineering9050190. [PMID: 35621468 PMCID: PMC9137703 DOI: 10.3390/bioengineering9050190] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Revised: 04/22/2022] [Accepted: 04/23/2022] [Indexed: 11/21/2022] Open
Abstract
Research on the capability of non-viral gene delivery systems to induce tissue regeneration is a continued effort as the current use of viral vectors can present with significant limitations. Despite initially showing lower gene transfection and gene expression efficiencies, non-viral delivery methods continue to be optimized to match that of their viral counterparts. Ultrasound-mediated gene transfer, referred to as sonoporation, occurs by the induction of transient membrane permeabilization and has been found to significantly increase the uptake and expression of DNA in cells across many organ systems. In addition, it offers a more favorable safety profile compared to other non-viral delivery methods. Studies have shown that microbubble-enhanced sonoporation can elicit significant tissue regeneration in both ectopic and disease models, including bone and vascular tissue regeneration. Despite this, no clinical trials on the use of sonoporation for tissue regeneration have been conducted, although current clinical trials using sonoporation for other indications suggest that the method is safe for use in the clinical setting. In this review, we describe the pre-clinical studies conducted thus far on the use of sonoporation for tissue regeneration. Further, the various techniques used to increase the effectiveness and duration of sonoporation-induced gene transfer, as well as the obstacles that may be currently hindering clinical translation, are explored.
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20
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Razali K, Othman N, Mohd Nasir MH, Doolaanea AA, Kumar J, Ibrahim WN, Mohamed Ibrahim N, Mohamed WMY. The Promise of the Zebrafish Model for Parkinson's Disease: Today's Science and Tomorrow's Treatment. Front Genet 2021; 12:655550. [PMID: 33936174 PMCID: PMC8082503 DOI: 10.3389/fgene.2021.655550] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Accepted: 03/23/2021] [Indexed: 11/29/2022] Open
Abstract
The second most prevalent neurodegenerative disorder in the elderly is Parkinson's disease (PD). Its etiology is unclear and there are no available disease-modifying medicines. Therefore, more evidence is required concerning its pathogenesis. The use of the neurotoxin 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) is the basis of most animal models of PD. MPTP is metabolized by monoamine oxidase B (MAO B) to MPP + and induces the loss of dopaminergic neurons in the substantia nigra in mammals. Zebrafish have been commonly used in developmental biology as a model organism, but owing to its perfect mix of properties, it is now emerging as a model for human diseases. Zebrafish (Danio rerio) are cheap and easy to sustain, evolve rapidly, breed transparent embryos in large amounts, and are readily manipulated by different methods, particularly genetic ones. Furthermore, zebrafish are vertebrate species and mammalian findings obtained from zebrafish may be more applicable than those derived from genetic models of invertebrates such as Drosophila melanogaster and Caenorhabditis elegans. The resemblance cannot be taken for granted, however. The goal of the present review article is to highlight the promise of zebrafish as a PD animal model. As its aminergic structures, MPTP mode of action, and PINK1 roles mimic those of mammalians, zebrafish seems to be a viable model for studying PD. The roles of zebrafish MAO, however, vary from those of the two types of MAO present in mammals. The benefits unique to zebrafish, such as the ability to perform large-scale genetic or drug screens, should be exploited in future experiments utilizing zebrafish PD models.
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Affiliation(s)
- Khairiah Razali
- Department of Basic Medical Sciences, Kulliyyah of Medicine, International Islamic University Malaysia (IIUM), Kuantan, Malaysia
| | - Noratikah Othman
- Department of Basic Medical Sciences, Kulliyyah of Nursing, International Islamic University Malaysia (IIUM), Kuantan, Malaysia
| | - Mohd Hamzah Mohd Nasir
- Central Research and Animal Facility (CREAM), Kulliyyah of Science, International Islamic University Malaysia (IIUM), Kuantan, Malaysia
| | - Abd Almonem Doolaanea
- Department of Pharmaceutical Technology, Kulliyyah of Pharmacy, International Islamic University Malaysia (IIUM), Kuantan, Malaysia
| | - Jaya Kumar
- Department of Physiology, Faculty of Medicine, UKM Medical Centre (UKMMC), Kuala Lumpur, Malaysia
| | - Wisam Nabeel Ibrahim
- Department of Biomedical Sciences, College of Health Sciences, QU Health, Qatar University, Doha, Qatar
- Biomedical and Pharmaceutical Research Unit, QU Health, Qatar University, Doha, Qatar
| | | | - Wael M. Y. Mohamed
- Department of Basic Medical Sciences, Kulliyyah of Medicine, International Islamic University Malaysia (IIUM), Kuantan, Malaysia
- Clinical Pharmacology Department, Menoufia Medical School, Menoufia University, Menoufia, Egypt
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21
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Kittana N, Assali M, Zimmermann WH, Liaw N, Santos GL, Rehman A, Lutz S. Modulating the Biomechanical Properties of Engineered Connective Tissues by Chitosan-Coated Multiwall Carbon Nanotubes. Int J Nanomedicine 2021; 16:989-1000. [PMID: 33633447 PMCID: PMC7901244 DOI: 10.2147/ijn.s289107] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Accepted: 01/20/2021] [Indexed: 01/08/2023] Open
Abstract
Background Under certain conditions, the physiological repair of connective tissues might fail to restore the original structure and function. Optimized engineered connective tissues (ECTs) with biophysical properties adapted to the target tissue could be used as a substitution therapy. This study aimed to investigate the effect of ECT enforcement by a complex of multiwall carbon nanotubes with chitosan (C-MWCNT) to meet in vivo demands. Materials and Methods ECTs were constructed from human foreskin fibroblasts (HFF-1) in collagen type I and enriched with the three different percentages 0.025, 0.05 and 0.1% of C-MWCNT. Characterization of the physical properties was performed by biomechanical studies using unidirectional strain. Results Supplementation with 0.025% C-MWCNT moderately increased the tissue stiffness, reflected by Young’s modulus, compared to tissues without C-MWCNT. Supplementation of ECTs with 0.1% C-MWCNT reduced tissue contraction and increased the elasticity and the extensibility, reflected by the yield point and ultimate strain, respectively. Consequently, the ECTs with 0.1% C-MWCNT showed a higher resilience and toughness as control tissues. Fluorescence tissue imaging demonstrated the longitudinal alignment of all cells independent of the condition. Conclusion Supplementation with C-MWCNT can enhance the biophysical properties of ECTs, which could be advantageous for applications in connective tissue repair.
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Affiliation(s)
- Naim Kittana
- Department of Biomedical Sciences, Faculty of Medicine & Health Sciences, An-Najah National University, Nablus, Palestine
| | - Mohyeddin Assali
- Department of Pharmacy, Faculty of Medicine & Health Sciences, An-Najah National University, Nablus, Palestine
| | - Wolfram-Hubertus Zimmermann
- Institute of Pharmacology and Toxicology, University Medical Center Göttingen, Göttingen, Germany.,DZHK (German Center for Cardiovascular Research) Partner Site Göttingen, Göttingen, Germany
| | - Norman Liaw
- Institute of Pharmacology and Toxicology, University Medical Center Göttingen, Göttingen, Germany.,DZHK (German Center for Cardiovascular Research) Partner Site Göttingen, Göttingen, Germany
| | - Gabriela Leao Santos
- Institute of Pharmacology and Toxicology, University Medical Center Göttingen, Göttingen, Germany.,DZHK (German Center for Cardiovascular Research) Partner Site Göttingen, Göttingen, Germany
| | - Abdul Rehman
- Institute of Pharmacology and Toxicology, University Medical Center Göttingen, Göttingen, Germany.,DZHK (German Center for Cardiovascular Research) Partner Site Göttingen, Göttingen, Germany
| | - Susanne Lutz
- Institute of Pharmacology and Toxicology, University Medical Center Göttingen, Göttingen, Germany.,DZHK (German Center for Cardiovascular Research) Partner Site Göttingen, Göttingen, Germany
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22
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Pan J, Liang E, Cai Q, Zhang D, Wang J, Feng Y, Yang X, Yang Y, Tian W, Quan C, Han R, Niu Y, Chen Y, Xin Z. Progress in studies on pathological changes and future treatment strategies of obesity-associated female stress urinary incontinence: a narrative review. Transl Androl Urol 2021; 10:494-503. [PMID: 33532337 PMCID: PMC7844519 DOI: 10.21037/tau-20-1217] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
With the increasing prevalence of obesity worldwide, obesity-related female stress urinary incontinence (FSUI) has become a key health problem. Recent studies indicated that FSUI is primarily caused by obesity-related pathological changes, such as fat droplet deposition, and results in pelvic floor nerve, vascular, and urethral striated muscle injury. Meanwhile, treatments for obesity-associated FSUI (OA-FSUI) have garnered much attention. Although existing OA-FSUI management strategies, including weight loss, pelvic floor muscle exercise, and urethral sling operation, could play a role in symptomatic relief; they cannot reverse the pathological changes in OA-FSUI. The continued exploration of safe and reliable treatments has led to regenerative therapy becoming a particularly promising area of researches. Specifically, micro-energy, such as low-intensity pulsed ultrasound (LIPUS), low-intensity extracorporeal shock wave therapy (Li-ESWT), and pulsed electromagnetic field (PEMF), have been shown to restore the underlying pathological changes of OA-FSUI, which might be related by regulation endogenous stem cells (ESCs) to restore urine control function ultimately in animal experiments. Therefore, ESCs may be a target for repairing pathological changes of OA-FSUI. The aim of this review was to summarize the OA-FSUI-related pathogenesis, current treatments, and to discuss potential therapeutic options. In particular, this review is focused on the effects and related mechanisms of micro-energy therapy for OA-FSUI to provide a reference for future basically and clinical researches.
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Affiliation(s)
- Jiancheng Pan
- Male Reproductive and Sexual Medicine, Department of Urology, the Second Hospital of Tianjin Medical University, Tianjin, China.,Laboratory of Male Reproductive Medicine, Tianjin Urology Institute, Tianjin, China
| | - Enli Liang
- Male Reproductive and Sexual Medicine, Department of Urology, the Second Hospital of Tianjin Medical University, Tianjin, China.,Laboratory of Male Reproductive Medicine, Tianjin Urology Institute, Tianjin, China
| | - Qiliang Cai
- Male Reproductive and Sexual Medicine, Department of Urology, the Second Hospital of Tianjin Medical University, Tianjin, China.,Laboratory of Male Reproductive Medicine, Tianjin Urology Institute, Tianjin, China
| | - Dingrong Zhang
- Male Reproductive and Sexual Medicine, Department of Urology, the Second Hospital of Tianjin Medical University, Tianjin, China.,Laboratory of Male Reproductive Medicine, Tianjin Urology Institute, Tianjin, China
| | - Jiang Wang
- Male Reproductive and Sexual Medicine, Department of Urology, the Second Hospital of Tianjin Medical University, Tianjin, China.,Laboratory of Male Reproductive Medicine, Tianjin Urology Institute, Tianjin, China
| | - Yuhong Feng
- Male Reproductive and Sexual Medicine, Department of Urology, the Second Hospital of Tianjin Medical University, Tianjin, China.,Laboratory of Male Reproductive Medicine, Tianjin Urology Institute, Tianjin, China
| | - Xiaoqing Yang
- Male Reproductive and Sexual Medicine, Department of Urology, the Second Hospital of Tianjin Medical University, Tianjin, China.,Laboratory of Male Reproductive Medicine, Tianjin Urology Institute, Tianjin, China
| | - Yongjiao Yang
- Male Reproductive and Sexual Medicine, Department of Urology, the Second Hospital of Tianjin Medical University, Tianjin, China.,Laboratory of Male Reproductive Medicine, Tianjin Urology Institute, Tianjin, China
| | - Wenjie Tian
- Department of Urology, Seoul St. Mary's Hospital, The Catholic University of Korea, Seoul, Korea
| | - Changyi Quan
- Male Reproductive and Sexual Medicine, Department of Urology, the Second Hospital of Tianjin Medical University, Tianjin, China.,Laboratory of Male Reproductive Medicine, Tianjin Urology Institute, Tianjin, China
| | - Ruifa Han
- Male Reproductive and Sexual Medicine, Department of Urology, the Second Hospital of Tianjin Medical University, Tianjin, China.,Laboratory of Male Reproductive Medicine, Tianjin Urology Institute, Tianjin, China
| | - Yuanjie Niu
- Male Reproductive and Sexual Medicine, Department of Urology, the Second Hospital of Tianjin Medical University, Tianjin, China.,Laboratory of Male Reproductive Medicine, Tianjin Urology Institute, Tianjin, China
| | - Yegang Chen
- Male Reproductive and Sexual Medicine, Department of Urology, the Second Hospital of Tianjin Medical University, Tianjin, China.,Laboratory of Male Reproductive Medicine, Tianjin Urology Institute, Tianjin, China
| | - Zhongcheng Xin
- Male Reproductive and Sexual Medicine, Department of Urology, the Second Hospital of Tianjin Medical University, Tianjin, China.,Laboratory of Male Reproductive Medicine, Tianjin Urology Institute, Tianjin, China.,Andrology Center, Peking University First Hospital, Peking University, Beijing, China
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23
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Cuende N, Álvarez-Márquez AJ, Díaz-Aunión C, Castro P, Huet J, Pérez-Villares JM. Promoting the ethical use of safe and effective cell-based products: the Andalusian plan on regenerative medicine. Cytotherapy 2020; 22:712-717. [PMID: 32878735 PMCID: PMC7456586 DOI: 10.1016/j.jcyt.2020.07.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Revised: 07/04/2020] [Accepted: 07/15/2020] [Indexed: 10/25/2022]
Abstract
With regard to regenerative medicine, the expectations generated over the last two decades and the time involved in developing this type of therapies, together with the availability of devices that allow point-of-care treatments through the rapid isolation of cellular or plasma products from patients in the operating theater, represent the perfect breeding ground for the offering of unproven or unregulated therapies on a global scale. A multidisciplinary approach-one based on the collaboration of institutions that, from the perspective of their area of competence, can contribute to reversing this worrying situation-to this problem is essential. It is a priority for local health authorities to take measures that are adapted to the particular situation and regulatory framework of their respective territory. In this article, the authors present the regenerative medicine action plan promoted by the Andalusian Transplant Coordination (i.e., the action plan for the largest region in Spain), highlighting the aspects the authors believe are fundamental to its success. The authors describe, in summary form, the methodology, phases of the plan, actions designed, key collaborators, important milestones achieved and main lessons they have drawn from their experience so that this can serve as an example for other institutions interested in promoting the ethical use of this type of therapy.
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Affiliation(s)
- Natividad Cuende
- Coordinación Autonómica de Trasplantes de Andalucía, Servicio Andaluz de Salud, Sevilla, Spain.
| | | | - Concepción Díaz-Aunión
- Coordinación Autonómica de Trasplantes de Andalucía, Servicio Andaluz de Salud, Sevilla, Spain
| | - Pablo Castro
- Coordinación Autonómica de Trasplantes de Andalucía, Servicio Andaluz de Salud, Sevilla, Spain
| | - Jesús Huet
- Coordinación Autonómica de Trasplantes de Andalucía, Servicio Andaluz de Salud, Sevilla, Spain
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24
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Chen Y, Cai Q, Pan J, Zhang D, Wang J, Guan R, Tian W, Lei H, Niu Y, Guo Y, Quan C, Xin Z. Role and mechanism of micro-energy treatment in regenerative medicine. Transl Androl Urol 2020; 9:690-701. [PMID: 32420176 PMCID: PMC7215051 DOI: 10.21037/tau.2020.02.25] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
With the continuous integration and intersection of life sciences, engineering and physics, the application for micro-energy in the basic and clinical research of regenerative medicine (RM) has made great progress. As a key target in the field of RM, stem cells have been widely used in the studies of regeneration. Recent studies have shown that micro-energy can regulate the biological behavior of stem cells to repair and regenerate injured organs and tissues by mechanical stimulation with appropriate intensity. Integrins-mediated related signaling pathways may play important roles in transducing mechanical force about micro-energy. However, the complete mechanism of mechanical force transduction needs further research. The purpose of this article is to review the biological effect and mechanism of micro-energy treatment on stem cells, to provide reference for further research.
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Affiliation(s)
- Yegang Chen
- Department of Urology, the Second Hospital of Tianjin Medical University, Tianjin Institute of Urology, Tianjin 300211, China
| | - Qiliang Cai
- Department of Urology, the Second Hospital of Tianjin Medical University, Tianjin Institute of Urology, Tianjin 300211, China
| | - Jiancheng Pan
- Department of Urology, the Second Hospital of Tianjin Medical University, Tianjin Institute of Urology, Tianjin 300211, China
| | - Dingrong Zhang
- Department of Urology, the Second Hospital of Tianjin Medical University, Tianjin Institute of Urology, Tianjin 300211, China
| | - Jiang Wang
- Department of Urology, the Second Hospital of Tianjin Medical University, Tianjin Institute of Urology, Tianjin 300211, China
| | - Ruili Guan
- Molecular Biology Laboratory of Andrology Center, Peking University First Hospital, Peking University, Beijing 100034, China
| | - Wenjie Tian
- Department of Urology, Seoul St. Mary's Hospital, the Catholic University of Korea, Jongno-gu, Seoul, Korea
| | - Hongen Lei
- Department of Urology, Beijing Chao-Yang Hospital, Beijing 100034, China
| | - Yuanjie Niu
- Department of Urology, the Second Hospital of Tianjin Medical University, Tianjin Institute of Urology, Tianjin 300211, China
| | - Yinglu Guo
- Department of Urology, Peking University First Hospital and the Institute of Urology, Peking University, Beijing 100034, China
| | - Changyi Quan
- Department of Urology, the Second Hospital of Tianjin Medical University, Tianjin Institute of Urology, Tianjin 300211, China
| | - Zhongcheng Xin
- Department of Urology, the Second Hospital of Tianjin Medical University, Tianjin Institute of Urology, Tianjin 300211, China.,Molecular Biology Laboratory of Andrology Center, Peking University First Hospital, Peking University, Beijing 100034, China
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