151
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Wang X, Wu D, Li W, Yang L. Emerging biomaterials for reproductive medicine. ENGINEERED REGENERATION 2021; 2:230-245. [DOI: 10.1016/j.engreg.2021.11.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
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152
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Dolmans MM, Donnez J, Cacciottola L. Fertility Preservation: The Challenge of Freezing and Transplanting Ovarian Tissue. Trends Mol Med 2020; 27:777-791. [PMID: 33309205 DOI: 10.1016/j.molmed.2020.11.003] [Citation(s) in RCA: 61] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 10/06/2020] [Accepted: 11/10/2020] [Indexed: 02/06/2023]
Abstract
Cancer treatments are increasingly effective, but can result in iatrogenic premature ovarian insufficiency. Ovarian tissue cryopreservation is the only option available to preserve fertility in prepubertal girls and young women who require immediate chemotherapy. Ovarian tissue transplantation has been shown to restore hormonal cycles and fertility, but a large proportion of the follicle reserve is lost as a consequence of exposure to hypoxia. Another crucial concern is the risk of reimplanting malignant cells together with the grafted tissue. In this review, the authors advance some challenging propositions, from prevention of chemotherapy-related gonadotoxicity to ovarian tissue cryopreservation and transplantation, including the artificial ovary approach.
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Affiliation(s)
- Marie-Madeleine Dolmans
- Gynecology Department, Cliniques universitaires St-Luc, Brussels, Belgium; Pôle de Gynécologie, Institut de Recherche Expérimentale et Clinique, Université Catholique de Louvain, Brussels, Belgium.
| | - Jacques Donnez
- Prof. Em. Catholic University of Louvain, Brussels, Belgium; Société de Recherche pour l'Infertilité (SRI), Brussels, Belgium
| | - Luciana Cacciottola
- Pôle de Gynécologie, Institut de Recherche Expérimentale et Clinique, Université Catholique de Louvain, Brussels, Belgium
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153
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Koch M, Włodarczyk-Biegun MK. Faithful scanning electron microscopic (SEM) visualization of 3D printed alginate-based scaffolds. ACTA ACUST UNITED AC 2020. [DOI: 10.1016/j.bprint.2020.e00098] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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154
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Wall MA, Padmanabhan V, Shikanov A. Hormonal Stimulation of Human Ovarian Xenografts in Mice: Studying Folliculogenesis, Activation, and Oocyte Maturation. Endocrinology 2020; 161:5939202. [PMID: 33099627 PMCID: PMC7671278 DOI: 10.1210/endocr/bqaa194] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Indexed: 12/25/2022]
Abstract
Ovarian tissue cryopreservation and banking provides a fertility preservation option for patients who cannot undergo oocyte retrieval; it is quickly becoming a critical component of assisted reproductive technology programs across the world. While the transplantation of cryopreserved ovarian tissue has resulted in over 130 live births, the field has ample room for technological improvements. Specifically, the functional timeline of grafted tissue and each patient's probability of achieving pregnancy is largely unpredictable due to patient-to-patient variability in ovarian reserve, lack of a reliable method for quantifying follicle numbers within tissue fragments, potential risk of reintroduction of cancer cells harbored in ovarian tissues, and an inability to control follicle activation rates. This review focuses on one of the most common physiological techniques used to study human ovarian tissue transplantation, xenotransplantation of human ovarian tissue to mice and endeavors to inform future studies by discussing the elements of the xenotransplantation model, challenges unique to the use of human ovarian tissue, and novel tissue engineering techniques currently under investigation.
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Affiliation(s)
- Monica Anne Wall
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, Michigan, USA
| | - Vasantha Padmanabhan
- Department of Obstetrics and Gynecology, University of Michigan, Ann Arbor, Michigan, USA
- Department of Pediatrics, University of Michigan, Ann Arbor, Michigan, USA
| | - Ariella Shikanov
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, Michigan, USA
- Department of Obstetrics and Gynecology, University of Michigan, Ann Arbor, Michigan, USA
- Cellular and Molecular Biology, University of Michigan, Ann Arbor, Michigan, USA
- Macromolecular Science and Engineering, University of Michigan, Ann Arbor, Michigan, USA
- Correspondence: Ariella Shikanov, PhD, 2126 LBME, Ann and Robert H. Lurie Biomedical Engineering Building, Ann Arbor, MI 48109, USA. E-mail:
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155
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Moura GAD, Monteiro PB. Cytotoxic Activity of Antineoplastic Agents on Fertility: A Systematic Review. REVISTA BRASILEIRA DE GINECOLOGIA E OBSTETRÍCIA 2020; 42:759-768. [PMID: 33254272 PMCID: PMC10309244 DOI: 10.1055/s-0040-1713911] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
Abstract
OBJECTIVE To analyze the long-term effects of antineoplastic treatments on patient fertility. SELECTION OF STUDIES The studies were selected through the New PubMed, Scielo and Lilacs databases along with references used for the creation of the present work. For the selection of studies, articles published between the periods from January 1, 2015 to April 6, 2020 in the English, Portuguese and Spanish languages were used. As inclusion criteria: cohort studies and studies conducted in vitro. As exclusion criteria: review articles, reported cases, studies that do not address thematic reproduction, studies that do not address the cancer theme, articles that used animals, articles that address the preservation of fertility and articles in duplicate in the bases. DATA COLLECTION The collected data included: age of the patient at the beginning of treatment, type of neoplasm, type of antineoplastic treatment, chemotherapy used, radiotherapy dosage, radiotherapy site, effect of antineoplastic agents on fertility and number of patients in the study. DATA SYNTHESIS Thirty studies were evaluated, antineoplastic chemotherapy agents and radiotherapy modulate serum hormone levels, reduces germ cell quantities and correlated with an increase in sterility rates. The effects mentioned occur in patients in the prepubertal and postpubertal age. CONCLUSION Antineoplastic treatments have cytotoxic effects on the germ cells leading to hormonal modulation, and pubertal status does not interfere with the cytotoxic action of therapies.
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156
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Mota C, Camarero-Espinosa S, Baker MB, Wieringa P, Moroni L. Bioprinting: From Tissue and Organ Development to in Vitro Models. Chem Rev 2020; 120:10547-10607. [PMID: 32407108 PMCID: PMC7564098 DOI: 10.1021/acs.chemrev.9b00789] [Citation(s) in RCA: 142] [Impact Index Per Article: 35.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2019] [Indexed: 02/08/2023]
Abstract
Bioprinting techniques have been flourishing in the field of biofabrication with pronounced and exponential developments in the past years. Novel biomaterial inks used for the formation of bioinks have been developed, allowing the manufacturing of in vitro models and implants tested preclinically with a certain degree of success. Furthermore, incredible advances in cell biology, namely, in pluripotent stem cells, have also contributed to the latest milestones where more relevant tissues or organ-like constructs with a certain degree of functionality can already be obtained. These incredible strides have been possible with a multitude of multidisciplinary teams around the world, working to make bioprinted tissues and organs more relevant and functional. Yet, there is still a long way to go until these biofabricated constructs will be able to reach the clinics. In this review, we summarize the main bioprinting activities linking them to tissue and organ development and physiology. Most bioprinting approaches focus on mimicking fully matured tissues. Future bioprinting strategies might pursue earlier developmental stages of tissues and organs. The continuous convergence of the experts in the fields of material sciences, cell biology, engineering, and many other disciplines will gradually allow us to overcome the barriers identified on the demanding path toward manufacturing and adoption of tissue and organ replacements.
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Affiliation(s)
- Carlos Mota
- Department of Complex Tissue Regeneration,
MERLN Institute for Technology-Inspired Regenerative Medicine, Maastricht University, 6211 LK Maastricht, The Netherlands
| | - Sandra Camarero-Espinosa
- Department of Complex Tissue Regeneration,
MERLN Institute for Technology-Inspired Regenerative Medicine, Maastricht University, 6211 LK Maastricht, The Netherlands
| | - Matthew B. Baker
- Department of Complex Tissue Regeneration,
MERLN Institute for Technology-Inspired Regenerative Medicine, Maastricht University, 6211 LK Maastricht, The Netherlands
| | - Paul Wieringa
- Department of Complex Tissue Regeneration,
MERLN Institute for Technology-Inspired Regenerative Medicine, Maastricht University, 6211 LK Maastricht, The Netherlands
| | - Lorenzo Moroni
- Department of Complex Tissue Regeneration,
MERLN Institute for Technology-Inspired Regenerative Medicine, Maastricht University, 6211 LK Maastricht, The Netherlands
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157
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Fonseca AC, Melchels FPW, Ferreira MJS, Moxon SR, Potjewyd G, Dargaville TR, Kimber SJ, Domingos M. Emulating Human Tissues and Organs: A Bioprinting Perspective Toward Personalized Medicine. Chem Rev 2020; 120:11128-11174. [PMID: 32937071 PMCID: PMC7645917 DOI: 10.1021/acs.chemrev.0c00342] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Indexed: 02/06/2023]
Abstract
The lack of in vitro tissue and organ models capable of mimicking human physiology severely hinders the development and clinical translation of therapies and drugs with higher in vivo efficacy. Bioprinting allow us to fill this gap and generate 3D tissue analogues with complex functional and structural organization through the precise spatial positioning of multiple materials and cells. In this review, we report the latest developments in terms of bioprinting technologies for the manufacturing of cellular constructs with particular emphasis on material extrusion, jetting, and vat photopolymerization. We then describe the different base polymers employed in the formulation of bioinks for bioprinting and examine the strategies used to tailor their properties according to both processability and tissue maturation requirements. By relating function to organization in human development, we examine the potential of pluripotent stem cells in the context of bioprinting toward a new generation of tissue models for personalized medicine. We also highlight the most relevant attempts to engineer artificial models for the study of human organogenesis, disease, and drug screening. Finally, we discuss the most pressing challenges, opportunities, and future prospects in the field of bioprinting for tissue engineering (TE) and regenerative medicine (RM).
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Affiliation(s)
- Ana Clotilde Fonseca
- Centre
for Mechanical Engineering, Materials and Processes, Department of
Chemical Engineering, University of Coimbra, Rua Sílvio Lima-Polo II, 3030-790 Coimbra, Portugal
| | - Ferry P. W. Melchels
- Institute
of Biological Chemistry, Biophysics and Bioengineering, School of
Engineering and Physical Sciences, Heriot-Watt
University, Edinburgh EH14 4AS, U.K.
| | - Miguel J. S. Ferreira
- Department
of Mechanical, Aerospace and Civil Engineering, School of Engineering,
Faculty of Science and Engineering, The
University of Manchester, Manchester M13 9PL, U.K.
| | - Samuel R. Moxon
- Division
of Neuroscience and Experimental Psychology, School of Biological
Sciences, Faculty of Biology Medicine and Health, University of Manchester, Manchester M13 9PT, U.K.
| | - Geoffrey Potjewyd
- Division
of Neuroscience and Experimental Psychology, School of Biological
Sciences, Faculty of Biology Medicine and Health, University of Manchester, Manchester M13 9PT, U.K.
| | - Tim R. Dargaville
- Institute
of Health and Biomedical Innovation, Science and Engineering Faculty, Queensland University of Technology, Queensland 4001, Australia
| | - Susan J. Kimber
- Division
of Cell Matrix Biology and Regenerative Medicine, School of Biological
Sciences, Faculty of Biology Medicine and Health, University of Manchester, Manchester M13 9PT, U.K.
| | - Marco Domingos
- Department
of Mechanical, Aerospace and Civil Engineering, School of Engineering,
Faculty of Science and Engineering, The
University of Manchester, Manchester M13 9PL, U.K.
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158
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Lee SC, Gillispie G, Prim P, Lee SJ. Physical and Chemical Factors Influencing the Printability of Hydrogel-based Extrusion Bioinks. Chem Rev 2020; 120:10834-10886. [PMID: 32815369 PMCID: PMC7673205 DOI: 10.1021/acs.chemrev.0c00015] [Citation(s) in RCA: 84] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Bioprinting researchers agree that "printability" is a key characteristic for bioink development, but neither the meaning of the term nor the best way to experimentally measure it has been established. Furthermore, little is known with respect to the underlying mechanisms which determine a bioink's printability. A thorough understanding of these mechanisms is key to the intentional design of new bioinks. For the purposes of this review, the domain of printability is defined as the bioink requirements which are unique to bioprinting and occur during the printing process. Within this domain, the different aspects of printability and the factors which influence them are reviewed. The extrudability, filament classification, shape fidelity, and printing accuracy of bioinks are examined in detail with respect to their rheological properties, chemical structure, and printing parameters. These relationships are discussed and areas where further research is needed, are identified. This review serves to aid the bioink development process, which will continue to play a major role in the successes and failures of bioprinting, tissue engineering, and regenerative medicine going forward.
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Affiliation(s)
- Sang Cheon Lee
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Winston-Salem, North Carolina 27157 , USA
- Department of Maxillofacial Biomedical Engineering and Institute of Oral Biology, School of Dentistry, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Gregory Gillispie
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Winston-Salem, North Carolina 27157 , USA
- School of Biomedical Engineering and Sciences, Wake Forest University-Virginia Tech, Winston-Salem, North Carolina 27157, USA
| | - Peter Prim
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Winston-Salem, North Carolina 27157 , USA
| | - Sang Jin Lee
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Winston-Salem, North Carolina 27157 , USA
- School of Biomedical Engineering and Sciences, Wake Forest University-Virginia Tech, Winston-Salem, North Carolina 27157, USA
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159
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Zubizarreta ME, Xiao S. Bioengineering models of female reproduction. Biodes Manuf 2020; 3:237-251. [PMID: 32774987 PMCID: PMC7413245 DOI: 10.1007/s42242-020-00082-8] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2020] [Accepted: 05/23/2020] [Indexed: 12/25/2022]
Abstract
The female reproductive system consists of the ovaries, the female gonads, and the reproductive track organs of the fallopian tubes, uterus, cervix, and vagina. It functions to provide hormonal support and anatomical structure for the production of new offspring. A number of endogenous and exogenous factors can impact female reproductive health and fertility, including genetic vulnerability, medications, environmental exposures, age, nutrition, and diseases, etc. To date, due to the ethical concerns of using human subjects in biomedical research, the majority of studies use in vivo animal models and 2D cell/tissue culture models to study female reproduction. However, the complexity and species difference of the female reproductive system in humans makes it difficult to compare to those of animals. Moreover, the monolayered cells cultured on flat plastics or glass lose their 3D architecture as well as the physical and/or biochemical contacts with other cells in vivo. Further, all reproductive organs do not work alone but interconnect with each other and also with non-reproductive organs to support female reproductive, endocrine, and systemic health. These facts suggest that there is an urgent and unmet need to develop representative, effective, and efficient in vitro models for studying human female reproduction. The prodigious advancements of bioengineering (e.g. biomaterials, 3D printing, and organ-on-a-chip) allow us to study female reproduction in an entirely new way. Here, we review recent advances that use bioengineering methods to study female reproduction, including the bioengineering models of the ovary, fallopian tube, uterus, embryo implantation, placenta, and reproductive disease.
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Affiliation(s)
- Maria E. Zubizarreta
- Department of Environmental Health Sciences, Arnold School of Public Health, University of South Carolina, Columbia, SC 29208, USA
| | - Shuo Xiao
- Department of Environmental Health Sciences, Arnold School of Public Health, University of South Carolina, Columbia, SC 29208, USA
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy, Environmental Health Sciences Institute, Rutgers University, Piscataway, NJ, 08854, USA
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160
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Semertzidou A, Brosens JJ, McNeish I, Kyrgiou M. Organoid models in gynaecological oncology research. Cancer Treat Rev 2020; 90:102103. [PMID: 32932156 DOI: 10.1016/j.ctrv.2020.102103] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2020] [Revised: 08/29/2020] [Accepted: 08/31/2020] [Indexed: 02/06/2023]
Abstract
Cell culture and animal models represent experimental cornerstones for the investigation of tissue, organ and body physiology in the context of gynaecological research. However, their ability to accurately reflect human mechanisms in vivo is limited. The development of organoid technologies has begun to address this limitation by providing platforms ex vivo that resemble the phenotype and genotype of the multi-cellular tissue from which they were derived more accurately. In this review, we discuss advances in organoid derivation from endometrial, ovarian, fallopian tube and cervical tissue, both benign and malignant, the manipulation of organoid microenvironment to preserve stem cell populations and achieve long-term expansion and we explore the morphological and molecular kinship of organoids to parent tissue. Apart from providing new insight into mechanisms of carcinogenesis, gynaecological cancer-derived organoids can be utilised as tools for drug screening of chemotherapeutic and hormonal compounds where they exhibit interpatient variability consistent with states in vivo and xenografted tumours allowing for patient-tailored treatment strategies. Bridging organoid with bioengineering accomplishments is clearly the way forward to the generation of organoid-on-a-chip technologies enhancing the robustness of the model and its translational potential. Undeniably, organoids are expected to stand their ground in the years to come and revolutionize development and disease modelling studies.
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Affiliation(s)
- Anita Semertzidou
- Department of Surgery and Cancer & Department of Digestion, Metabolism and Reproduction, Faculty of Medicine, Imperial College London, London W12 0NN, UK; Queen Charlotte's and Chelsea - Hammersmith Hospital, Imperial College Healthcare NHS Trust, London W12 0HS, UK
| | - Jan J Brosens
- Division of Biomedical Sciences, Clinical Science Research Laboratories, Warwick Medical School, University of Warwick, Coventry CV2 2DX, UK; Tommy's National Centre for Miscarriage Research, University Hospitals Coventry & Warwickshire, Coventry CV2 2DX, UK
| | - Iain McNeish
- Department of Surgery and Cancer & Department of Digestion, Metabolism and Reproduction, Faculty of Medicine, Imperial College London, London W12 0NN, UK
| | - Maria Kyrgiou
- Department of Surgery and Cancer & Department of Digestion, Metabolism and Reproduction, Faculty of Medicine, Imperial College London, London W12 0NN, UK; Queen Charlotte's and Chelsea - Hammersmith Hospital, Imperial College Healthcare NHS Trust, London W12 0HS, UK.
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161
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Yan W. An Interview with Dr. Teresa K Woodruff. Biol Reprod 2020. [DOI: 10.1093/biolre/ioaa094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Wei Yan
- The Lundquist Institute at Harbor-UCLA Medical Center, Torrance, CA 90502, USA
- Department of Medicine, David Geffen School of Medicine at UCLA, Los Angeles, CA 90095, USA
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162
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Pors SE, Ramløse M, Nikiforov D, Lundsgaard K, Cheng J, Andersen CY, Kristensen SG. Initial steps in reconstruction of the human ovary: survival of pre-antral stage follicles in a decellularized human ovarian scaffold. Hum Reprod 2020; 34:1523-1535. [PMID: 31286144 DOI: 10.1093/humrep/dez077] [Citation(s) in RCA: 74] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Revised: 04/04/2019] [Accepted: 04/25/2019] [Indexed: 11/13/2022] Open
Abstract
STUDY QUESTION Can a reconstructed ovary using decellularized human ovarian tissue (DCT) support survival of pre-antral stage follicles? SUMMARY ANSWER We have demonstrated an effective protocol for decellularization of human ovarian tissues and successful recellularization with isolated human ovarian cells and pre-antral follicles. WHAT IS KNOWN ALREADY Survivors of leukemia or ovarian cancer run a risk of reintroducing malignancy when cryopreserved ovarian tissue is transplanted to restore fertility. A reconstructed ovary free of malignant cells could provide a safe alternative. Decellularization of ovarian tissue removes all cells from the extracellular matrix (ECM) including possible malignancies and leaves behind a physiological scaffold. The ECM offers the complex milieu that facilitates the necessary interaction between ovarian follicles and their surroundings to ensure their growth and development. Previous studies have shown that decellularized bovine ovarian scaffolds supported murine follicle growth and restoration of ovarian function in ovariectomized mice. STUDY DESIGN, SIZE, DURATION Optimizing a decellularization protocol for human ovarian tissues and testing biofunctionality of the decellularized scaffolds in vitro and in vivo by reseeding with both murine and human pre-antral follicles and ovarian cells. PARTICIPANTS/MATERIALS, SETTING, METHODS Donated human ovarian tissue and isolated pre-antral follicles were obtained from women undergoing ovarian tissue cryopreservation for fertility preservation. Ovarian cortical and medullary tissues were decellularized using 0.1% sodium dodecyl sulfate (SDS) for 3, 6, 18 and 24 hours followed by 24 hours of 1 mg/mL DNase treatment and washing. Decellularization of ovarian tissues and preservation of ECM were characterized by morphological evaluation using Periodic Acid-Schiff (PAS) staining, DNA quantification, histochemical quantification of collagen content and immunofluorescence analysis for collagen IA, laminin, fibronectin and DNA. Human ovarian stromal cells and isolated human pre-antral follicles were reseeded on the DCT and cultured in vitro. Isolated murine (N = 241) and human (N = 20) pre-antral follicles were reseeded on decellularized scaffolds and grafted subcutaneously to immunodeficient mice for 3 weeks. MAIN RESULTS AND THE ROLE OF CHANCE Incubation in 0.1% SDS for 18-24 hours adequately decellularized both human ovarian medullary and cortical tissue by eliminating all cells and leaving the ECM intact. DNA content in DCT was decreased by >90% compared to native tissue samples. Histological examination using PAS staining confirmed that the cortical and medullary tissues were completely decellularized, and no visible nuclear material was found within the decellularized sections. DCT also stained positive for collagen I and collagen quantities in DCT constituted 88-98% of the individual baselines for native samples. Human ovarian stroma cells were able to recellularize the DCT and isolated human pre-antral follicles remained viable in co-culture. Xenotransplantation of DCT reseeded with human or murine pre-antral follicles showed, that the DCT was able to support survival of human follicles and growth of murine follicles, of which 39% grew to antral stages. The follicular recovery rates after three weeks grafting were low but similar for both human (25%) and murine follicles (21%). LARGE SCALE DATA N/A. LIMITATIONS, REASONS FOR CAUTION Further studies are needed to increase recovery and survival of the reseeded follicles. Longer grafting periods should be evaluated to determine the developmental potential of human follicles. Survival of the follicles might be impaired by the lack of stroma cells. WIDER IMPLICATIONS OF THE FINDINGS This is the first time that isolated human follicles have survived in a decellularized human scaffold. Therefore, this proof-of-concept could be a potential new strategy to eliminate the risk of malignant cell re-occurrence in former cancer patients having cryopreserved ovarian tissue transplanted for fertility restoration. STUDY FUNDING/COMPETING INTEREST(S) This study is part of the ReproUnion collaborative study, co-financed by the European Union, Interreg V ÖKS. Furthermore, Project ITN REP-BIOTECH 675526 funded by the European Union, European Joint Doctorate in Biology and Technology of the Reproductive Health, the Research Pools of Rigshospitalet, the Danish Cancer Foundation and Dagmar Marshalls Foundation are thanked for having funded this study. The funders had no role in the study design, data collection and interpretation, or in the decision to submit the work for publication.
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Affiliation(s)
- S E Pors
- Laboratory of Reproductive Biology, The Juliane Marie Centre for Women, Children and Reproduction, University Hospital of Copenhagen, Faculty of Health Science, University of Copenhagen, Blegdamsvej, Copenhagen, Denmark
| | - M Ramløse
- Laboratory of Reproductive Biology, The Juliane Marie Centre for Women, Children and Reproduction, University Hospital of Copenhagen, Faculty of Health Science, University of Copenhagen, Blegdamsvej, Copenhagen, Denmark
| | - D Nikiforov
- Laboratory of Reproductive Biology, The Juliane Marie Centre for Women, Children and Reproduction, University Hospital of Copenhagen, Faculty of Health Science, University of Copenhagen, Blegdamsvej, Copenhagen, Denmark.,University of Teramo, Teramo, Via Renato Balzarini, Italy
| | - K Lundsgaard
- Laboratory of Reproductive Biology, The Juliane Marie Centre for Women, Children and Reproduction, University Hospital of Copenhagen, Faculty of Health Science, University of Copenhagen, Blegdamsvej, Copenhagen, Denmark
| | - J Cheng
- Laboratory of Reproductive Biology, The Juliane Marie Centre for Women, Children and Reproduction, University Hospital of Copenhagen, Faculty of Health Science, University of Copenhagen, Blegdamsvej, Copenhagen, Denmark.,People's Hospital of Guangxi Autonomous Region, 6 Taoyuan Rd, Qingxiu Qu, Nanning City, Guangxi province, China Via Renato Balzarini, Teramo
| | - C Yding Andersen
- Laboratory of Reproductive Biology, The Juliane Marie Centre for Women, Children and Reproduction, University Hospital of Copenhagen, Faculty of Health Science, University of Copenhagen, Blegdamsvej, Copenhagen, Denmark
| | - S G Kristensen
- Laboratory of Reproductive Biology, The Juliane Marie Centre for Women, Children and Reproduction, University Hospital of Copenhagen, Faculty of Health Science, University of Copenhagen, Blegdamsvej, Copenhagen, Denmark
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163
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Armstrong AA, Alleyne AG, Wagoner Johnson AJ. 1D and 2D error assessment and correction for extrusion-based bioprinting using process sensing and control strategies. Biofabrication 2020; 12:045023. [PMID: 32702687 DOI: 10.1088/1758-5090/aba8ee] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The bioprinting literature currently lacks: (i) process sensing tools to measure material deposition, (ii) performance metrics to evaluate system performance, and (iii) control tools to correct for and avoid material deposition errors. The lack of process sensing tools limits in vivo functionality of bioprinted parts since accurate material deposition is critical to mimicking the heterogeneous structures of native tissues. We present a process monitoring and control strategy for extrusion-based fabrication that addresses all three gaps to improve material deposition. Our strategy uses a non-contact laser displacement scanner that measures both the spatial material placement and width of the deposited material. We developed a custom image processing script that uses the laser scanner data and defined error metrics for assessing material deposition. To implement process control, the script uses the error metrics to modify control inputs for the next deposition iteration in order to correct for the errors. A key contribution is the definition of a novel method to quantitatively evaluate the accuracy of printed constructs. We implement the process monitoring and control strategy on an extrusion-printing system to evaluate system performance and demonstrate improvement in both material placement and material width.
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Affiliation(s)
- Ashley A Armstrong
- The University of Illinois at Urbana Champaign, Champaign, IL, United States of America
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164
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Kang Y, Datta P, Shanmughapriya S, Ozbolat IT. 3D Bioprinting of Tumor Models for Cancer Research. ACS APPLIED BIO MATERIALS 2020; 3:5552-5573. [DOI: 10.1021/acsabm.0c00791] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Youngnam Kang
- The Huck Institutes of the Life Sciences, Penn State University, University Park, Pennsylvania 16802, United States
- Engineering Science and Mechanics Department, Penn State University, University Park, Pennsylvania 16802, United States
| | - Pallab Datta
- Centre for Healthcare Science and Technology, Indian Institute of Engineering Science and Technology Shibpur, Howrah, West Bengal 711103, India
| | - Santhanam Shanmughapriya
- Department of Medicine, Penn State University, College of Medicine, Hershey, Pennsylvania 17033, United States
- Department of Cellular and Molecular Physiology, Penn State University, College of Medicine, Hershey, Pennsylvania 17033, United States
- Heart and Vascular Institute, Penn State University, College of Medicine, Hershey, Pennsylvania 17033, United States
| | - Ibrahim T. Ozbolat
- The Huck Institutes of the Life Sciences, Penn State University, University Park, Pennsylvania 16802, United States
- Engineering Science and Mechanics Department, Penn State University, University Park, Pennsylvania 16802, United States
- Biomedical Engineering Department, Penn State University, University Park, Pennsylvania 16802, United States
- Materials Research Institute, Penn State University, University Park, Pennsylvania 16802, United States
- Department of Neurosurgery, Penn State University, Hershey, Pennsylvania 17033, United States
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165
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Soman SS, Vijayavenkataraman S. Applications of 3D Bioprinted-Induced Pluripotent Stem Cells in Healthcare. Int J Bioprint 2020; 6:280. [PMID: 33088994 PMCID: PMC7557348 DOI: 10.18063/ijb.v6i4.280] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Accepted: 06/24/2020] [Indexed: 12/12/2022] Open
Abstract
Induced pluripotent stem cell (iPSC) technology and advancements in three-dimensional (3D) bioprinting technology enable scientists to reprogram somatic cells to iPSCs and 3D print iPSC-derived organ constructs with native tissue architecture and function. iPSCs and iPSC-derived cells suspended in hydrogels (bioinks) allow to print tissues and organs for downstream medical applications. The bioprinted human tissues and organs are extremely valuable in regenerative medicine as bioprinting of autologous iPSC-derived organs eliminates the risk of immune rejection with organ transplants. Disease modeling and drug screening in bioprinted human tissues will give more precise information on disease mechanisms, drug efficacy, and drug toxicity than experimenting on animal models. Bioprinted iPSC-derived cancer tissues will aid in the study of early cancer development and precision oncology to discover patient-specific drugs. In this review, we present a brief summary of the combined use of two powerful technologies, iPSC technology, and 3D bioprinting in health-care applications.
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Affiliation(s)
- Soja Saghar Soman
- Division of Engineering, New York University Abu Dhabi, Abu Dhabi, UAE
| | - Sanjairaj Vijayavenkataraman
- Division of Engineering, New York University Abu Dhabi, Abu Dhabi, UAE.,Department of Mechanical and Aerospace Engineering, Tandon School of Engineering, New York University, NY, USA
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166
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Grive KJ. Pathways coordinating oocyte attrition and abundance during mammalian ovarian reserve establishment. Mol Reprod Dev 2020; 87:843-856. [PMID: 32720428 DOI: 10.1002/mrd.23401] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Accepted: 07/16/2020] [Indexed: 12/21/2022]
Abstract
The mammalian ovarian reserve is comprised of a finite pool of primordial follicles, representing the lifetime reproductive capacity of females. In most mammals, the reserve is produced during embryonic and early postnatal development with oocyte numbers peaking during mid-to-late gestation, and then experiencing a dramatic decline continuing until shortly after birth. Oocytes remaining after the bulk of this attrition are subsequently surrounded by a layer of somatic pre-granulosa cells with these units then referred to as "primordial follicles." The complex and varied cell death mechanisms intrinsic to this process are not only characteristic of, but also essential for, the proper formation of this pool of follicles, and as a result must be immaculately balanced to ensure long-term fertility and reproductive health. Too few follicles can lead to Primary Ovarian Insufficiency, resulting in fertility loss and other features of aging, such as an overall shorter lifespan. On the other hand, whereas an excess of follicles might extend reproductive lifespan, this might also be the underlying etiology of other ovarian pathologies. The last decade, in particular, has vastly expanded our understanding of oocyte attrition and determinants of ovarian reserve abundance. By continuing to decipher the intricacies underlying the cell death processes and development of the initial primordial follicle pool, we may be in a much better position to understand idiopathic cases of premature follicle depletion and improve ovarian health in reproductive-age women.
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Affiliation(s)
- Kathryn J Grive
- Department of Obstetrics and Gynecology, Program in Women's Oncology, Women and Infants Hospital of Rhode Island, Providence, Rhode Island.,Department of Obstetrics and Gynecology, Warren Alpert Medical School of Brown University, Providence, Rhode Island
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167
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Alshaikh AB, Padma AM, Dehlin M, Akouri R, Song MJ, Brännström M, Hellström M. Decellularization and recellularization of the ovary for bioengineering applications; studies in the mouse. Reprod Biol Endocrinol 2020; 18:75. [PMID: 32703228 PMCID: PMC7376865 DOI: 10.1186/s12958-020-00630-y] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Accepted: 07/17/2020] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Fertility preservation is particularly challenging in young women diagnosed with hematopoietic cancers, as transplantation of cryopreserved ovarian cortex in these women carries the risk for re-introducing cancer cells. Therefore, the construction of a bioengineered ovary that can accommodate isolated small follicles was proposed as an alternative to minimize the risk of malignancy transmission. Various options for viable bioengineered scaffolds have been reported in the literature. Previously, we reported three protocols for producing mouse ovarian scaffolds with the decellularization technique. The present study examined these scaffolds further, specifically with regards to their extracellular composition, biocompatibility and ability to support recellularization with mesenchymal stem cells. MATERIAL AND METHODS Three decellularization protocols based on 0.5% sodium dodecyl sulfate (Protocol 1; P1), or 2% sodium deoxycholate (P2), or a combination of the two detergents (P3) were applied to produce three types of scaffolds. The levels of collagen, elastin and sulfated glycosaminoglycans (sGAGs) were quantified in the remaining extracellular matrix. Detailed immunofluorescence and scanning electron microscopy imaging were conducted to assess the morphology and recellularization efficiency of the constructs after 14 days in vitro utilizing red fluorescent protein-labelled mesenchymal stem cells. RESULTS All protocols efficiently removed the DNA while the elastin content was not significantly reduced during the procedures. The SDS-protocol (P1) reduced the sGAG and the collagen content more than the SDC-protocol (P2). All scaffolds were biocompatible and recellularization was successful, particularly in several P2-derived scaffolds. The cells were extensively distributed throughout the constructs, with a denser distribution observed towards the ovarian cortex. The cell density was not significantly different (400 to 550 cells/mm2) between scaffold types. However, there was a tendency towards a higher cell density in the SDC-derived constructs. Scanning electron microscope images showed fibrous scaffolds with a dense repopulated surface structure. CONCLUSIONS While there were differences in the key structural macromolecules between protocols, all scaffolds were biocompatible and showed effective recellularization. The results indicate that our SDC-protocol might be better than our SDS-protocol. However, additional studies are necessary to determine their suitability for attachment of small follicles and folliculogenesis.
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Affiliation(s)
- Ahmed Baker Alshaikh
- Laboratory for Transplantation and Regenerative Medicine, Sahlgrenska Academy, University of Gothenburg, Kvinnokliniken, Blå stråket 6, SE-413 45, Göteborg, Sweden
- Department of Obstetrics and Gynecology, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Arvind Manikantan Padma
- Laboratory for Transplantation and Regenerative Medicine, Sahlgrenska Academy, University of Gothenburg, Kvinnokliniken, Blå stråket 6, SE-413 45, Göteborg, Sweden
- Department of Obstetrics and Gynecology, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Matilda Dehlin
- Laboratory for Transplantation and Regenerative Medicine, Sahlgrenska Academy, University of Gothenburg, Kvinnokliniken, Blå stråket 6, SE-413 45, Göteborg, Sweden
- Department of Obstetrics and Gynecology, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Randa Akouri
- Laboratory for Transplantation and Regenerative Medicine, Sahlgrenska Academy, University of Gothenburg, Kvinnokliniken, Blå stråket 6, SE-413 45, Göteborg, Sweden
- Department of Obstetrics and Gynecology, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Min Jong Song
- Laboratory for Transplantation and Regenerative Medicine, Sahlgrenska Academy, University of Gothenburg, Kvinnokliniken, Blå stråket 6, SE-413 45, Göteborg, Sweden
- Department of Obstetrics and Gynecology, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Department of Obstetrics & Gynecology, Yeouido St. Mary's Hospital, The Catholic University of Korea, Seoul, Republic of Korea
| | - Mats Brännström
- Laboratory for Transplantation and Regenerative Medicine, Sahlgrenska Academy, University of Gothenburg, Kvinnokliniken, Blå stråket 6, SE-413 45, Göteborg, Sweden
- Department of Obstetrics and Gynecology, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Stockholm IVF-EUGIN, Stockholm, Sweden
| | - Mats Hellström
- Laboratory for Transplantation and Regenerative Medicine, Sahlgrenska Academy, University of Gothenburg, Kvinnokliniken, Blå stråket 6, SE-413 45, Göteborg, Sweden.
- Department of Obstetrics and Gynecology, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.
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168
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Adib AA, Sheikhi A, Shahhosseini M, Simeunović A, Wu S, Castro CE, Zhao R, Khademhosseini A, Hoelzle DJ. Direct-write 3D printing and characterization of a GelMA-based biomaterial for intracorporeal tissue. Biofabrication 2020; 12:045006. [PMID: 32464607 DOI: 10.1088/1758-5090/ab97a1] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
We develop and characterize a biomaterial formulation and robotic methods tailored for intracorporeal tissue engineering (TE) via direct-write (DW) 3D printing. Intracorporeal TE is defined as the biofabrication of 3D TE scaffolds inside of a living patient, in a minimally invasive manner. A biomaterial for intracorporeal TE requires to be 3D printable and crosslinkable via mechanisms that are safe to native tissues and feasible at physiological temperature (37 °C). The cell-laden biomaterial (bioink) preparation and bioprinting methods must support cell viability. Additionally, the biomaterial and bioprinting method must enable the spatially accurate intracorporeal 3D delivery of the biomaterial, and the biomaterial must adhere to or integrate into the native tissue. Current biomaterial formulations do not meet all the presumed intracorporeal DW TE requirements. We demonstrate that a specific formulation of gelatin methacryloyl (GelMA)/Laponite®/methylcellulose (GLM) biomaterial system can be 3D printed at physiological temperature and crosslinked using visible light to construct 3D TE scaffolds with clinically relevant dimensions and consistent structures. Cell viability of 71%-77% and consistent mechanical properties over 21 d are reported. Rheological modifiers, Laponite® and methylcellulose, extend the degradation time of the scaffolds. The DW modality enables the piercing of the soft tissue and over-extrusion of the biomaterial into the tissue, creating a novel interlocking mechanism with soft, hydrated native tissue mimics and animal muscle with a 3.5-4 fold increase in the biomaterial/tissue adhesion strength compared to printing on top of the tissue. The developed GLM biomaterial and robotic interlocking mechanism pave the way towards intracorporeal TE.
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Affiliation(s)
- A Asghari Adib
- Department of Mechanical and Aerospace Engineering, The Ohio State University, Columbus, OH, United States of America
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169
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Culture of human ovarian tissue in xeno-free conditions using laminin components of the human ovarian extracellular matrix. J Assist Reprod Genet 2020; 37:2137-2150. [PMID: 32671735 DOI: 10.1007/s10815-020-01886-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Accepted: 07/08/2020] [Indexed: 01/23/2023] Open
Abstract
PURPOSE Our purpose was to identify human ovarian extracellular matrix (ECM) components that would support in vitro culture of human ovarian tissue and be compatible with possible future clinical applications. We characterized ovarian expression of laminins and selected three laminin tripeptides for culture experiments to be compared with Matrigel, an undefined and animal-based mixture of ECM components. METHODS Expression of the 12 laminin genes was determined on transcript and protein levels using cortical tissue samples (n = 6), commercial ovary RNA (n = 1), follicular fluid granulosa cells (n = 20), and single-cell RNA-sequencing data. Laminin 221 (LN221), LN521, LN511, and their mixture were chosen for a 7-day culture experiment along with Matrigel using tissue from 17 patients. At the end of the culture, follicles were evaluated by scoring and counting from serial tissue sections, apoptosis measured using in situ TUNEL assay, proliferation by Ki67 staining, and endocrine function by quantifying steroids in culture media using UPLC-MS/MS. RESULTS Approximately half of the cells in ovarian cortex expressed at least one laminin gene. The overall most expressed laminin α-chains were LAMA2 and LAMA5, β-chains LAMB1 and LAMB2, and γ-chain LAMC1. In culture experiments, LN221 enhanced follicular survival compared with Matrigel (p < 0.001), whereas tissue cultured on LN521 had higher proportion of secondary follicles (p < 0.001). LN511 and mixture of laminins did not support the cultures leading to lower follicle densities and higher apoptosis. All cultures produced steroids and contained proliferating cells. CONCLUSIONS LN221 and LN521 show promise in providing xeno-free growth substrates for human ovarian tissue cultures, which may help in further development of folliculogenesis in vitro for clinical practices. The system could also be used for identification of adverse effects of chemicals in ovaries.
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170
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Badekila AK, Kini S, Jaiswal AK. Fabrication techniques of biomimetic scaffolds in three-dimensional cell culture: A review. J Cell Physiol 2020; 236:741-762. [PMID: 32657458 DOI: 10.1002/jcp.29935] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2020] [Accepted: 07/03/2020] [Indexed: 12/20/2022]
Abstract
In the last four decades, several researchers worldwide have routinely and meticulously exercised cell culture experiments in two-dimensional (2D) platforms. Using traditionally existing 2D models, the therapeutic efficacy of drugs has been inappropriately validated due to the failure in generating the precise therapeutic response. Fortunately, a 3D model addresses the foregoing limitations by recapitulating the in vivo environment. In this context, one has to contemplate the design of an appropriate scaffold for favoring the organization of cell microenvironment. Instituting pertinent model on the platter will pave way for a precise mimicking of in vivo conditions. It is because animal cells in scaffolds oblige spontaneous formation of 3D colonies that molecularly, phenotypically, and histologically resemble the native environment. The 3D culture provides insight into the biochemical aspects of cell-cell communication, plasticity, cell division, cytoskeletal reorganization, signaling mechanisms, differentiation, and cell death. Focusing on these criteria, this paper discusses in detail, the diversification of polymeric scaffolds based on their available resources. The paper also reviews the well-founded and latest techniques of scaffold fabrication, and their applications pertaining to tissue engineering, drug screening, and tumor model development.
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Affiliation(s)
- Anjana K Badekila
- Nitte University Centre for Science Education and Research, Nitte (Deemed to be University), Mangalore, Karnataka, India
| | - Sudarshan Kini
- Nitte University Centre for Science Education and Research, Nitte (Deemed to be University), Mangalore, Karnataka, India
| | - Amit K Jaiswal
- Centre for Biomaterials, Cellular, and Molecular Theranostics, Vellore Institute of Technology, Vellore, Tamil Nadu, India
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171
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Edmonds ME, Woodruff TK. Testicular organoid formation is a property of immature somatic cells, which self-assemble and exhibit long-term hormone-responsive endocrine function. Biofabrication 2020; 12:045002. [PMID: 32492667 DOI: 10.1088/1758-5090/ab9907] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Testicular organoid models are tools to study testicular physiology, development, and spermatogenesis in vitro. However, few side-by-side comparisons of organoid generation method have been evaluated. Here, we directly tested whether the culture microenvironment is the prime determinant promoting testicular organoid self-assembly. Using Matrigel as a representative extracellular matrix (ECM), we compared multiple culture environments, 2D and 3D, ECM-free and ECM, for organoid self-assembly with immature murine testicular cells. De novo tissues were observed to self-assemble in all four culture environments tested within 72 h, however, these tissues only met requirements to be named organoids in 2D ECM and 3D ECM-free (3DF) culture methods. Based on these results, 3DF was selected for further study, and used to examine animal age as an independent variable. Organoid assembly was significantly delayed when using pubertal murine cells and entirely absent from adult murine and adult human cells. Organoid-conditioned medium and medium supplemented with 1% Matrigel did not improve organoid assembly in pubertal murine cells, but immature murine cells rescued the assembly of adult murine cells when cultured together as age-chimeric cell mixtures. In murine organoids cultured for 14 d, tubule-like structures exhibiting a highly biomimetic architecture were characterized, including some rare germ and spermatogonial stem cells. These structural organoids secreted high levels of testosterone and inhibin B over 12 weeks with preserved responsivity to gonadotropins. Collectively these studies, in which cellular self-assembly and organoid formation was achieved independent of the culture microenvironment, suggest that self-assembly is an innate property of immature testicular cells independent from, but capable of being promoted by, the culture environment. This study provides a template for studying testicular organoid self-assembly and endocrine function, and a platform for improving the engineering of functional testicular tissues.
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Affiliation(s)
- Maxwell E Edmonds
- Department of Obstetrics and Gynecology, Northwestern University Feinberg School of Medicine, Chicago, IL, United States of America
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172
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Bonfanti A, Kaplan JL, Charras G, Kabla A. Fractional viscoelastic models for power-law materials. SOFT MATTER 2020; 16:6002-6020. [PMID: 32638812 DOI: 10.1039/d0sm00354a] [Citation(s) in RCA: 77] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Soft materials often exhibit a distinctive power-law viscoelastic response arising from broad distribution of time-scales present in their complex internal structure. A promising tool to accurately describe the rheological behaviour of soft materials is fractional calculus. However, its use in the scientific community remains limited due to the unusual notation and non-trivial properties of fractional operators. This review aims to provide a clear and accessible description of fractional viscoelastic models for a broad audience and to demonstrate the ability of these models to deliver a unified approach for the characterisation of power-law materials. The use of a consistent framework for the analysis of rheological data would help classify the empirical behaviours of soft and biological materials, and better understand their response.
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Affiliation(s)
- A Bonfanti
- Department of Engineering, University of Cambridge, UK.
| | - J L Kaplan
- Department of Engineering, University of Cambridge, UK.
| | - G Charras
- London Centre for Nanotechnology, University College London, UK and Department of Cell and Developmental Biology, University College London, UK
| | - A Kabla
- Department of Engineering, University of Cambridge, UK.
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173
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Poulain M, Vandame J, Tran C, Koutchinsky S, Pirtea P, Ayoubi JM. Fertility preservation in borderline ovarian tumor patients and survivors. Horm Mol Biol Clin Investig 2020; 43:179-186. [PMID: 32628631 DOI: 10.1515/hmbci-2019-0072] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Accepted: 05/02/2020] [Indexed: 12/24/2022]
Abstract
Borderline ovarian tumors (BOTs) represent around 15% of all epithelial ovarian cancer. Around one third of those patients is under 40 and has not completed childbearing when the tumor is diagnosed. Cancer survivors are more and more concerned about their future fertility since a large proportion of those with BOTs are young. Whatever the tumor stage, information regarding future fertility after treatment and fertility preservation (FP) options must be delivered to all patients before treatment. A multidisciplinary team will discuss and propose personalized treatment and FP strategies. Nowadays, the FP options offered to patients with BOT are the followings: i) minimal invasive conservative surgery, ii) oocyte cryopreservation after controlled ovarian stimulation (COS) or in vitro maturation (IVM) and iii) ovarian tissue cryopreservation. Generally, the most common strategy to preserve future fertility is represented by minimal invasive conservative surgery. However, with the remarkable success and evolution of assisted reproductive technologies (ART) - notably progress and efficiency in COS and oocyte vitrification - have led to offer another potential approach for FP consisting in oocyte cryopreservation. Several COS protocols, such as random start or dual stimulation associating tamoxifen or aromatase inhibitors with gonadotropins provide similar results when compared to standard protocols while providing safety by minimizing the risk of high estrogen exposure. When COS is contraindicated, oocyte cryopreservation can still be possible throw IVM. Even though, oocyte competence after IVM is lower than that obtained after COS. A less used approach is cryopreservation of ovarian tissue, consisting in freezing ovarian cortex fragments for a future thawing and graft. Some concerns and limitations regard the ovarian cortex graft and the risk of reintroducing malignant cells once performed. Nonetheless, the latter it is the only option in prepubertal patients.
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Affiliation(s)
- Marine Poulain
- FOCH Hospital, Gynecology Obstetric and Reproductive Medical Unit Department, Suresnes, France
- Université Paris Saclay, UVSQ, INRAE, BREED, 78350, Jouy-en-Josas, France - ENVA, BREED, 94700, Maison-Alfort, France
| | - Jessica Vandame
- FOCH Hospital, Gynecology Obstetric and Reproductive Medical Unit Department, Suresnes, France
| | - Chloé Tran
- FOCH Hospital, Gynecology Obstetric and Reproductive Medical Unit Department, Suresnes, France
| | - Sonia Koutchinsky
- FOCH Hospital, Gynecology Obstetric and Reproductive Medical Unit Department, Suresnes, France
| | - Paul Pirtea
- FOCH Hospital, Gynecology Obstetric and Reproductive Medical Unit Department, Suresnes, France
- Université Paris Saclay, UVSQ, INRAE, BREED, 78350, Jouy-en-Josas, France - ENVA, BREED, 94700, Maison-Alfort, France
| | - Jean-Marc Ayoubi
- FOCH Hospital, Gynecology Obstetric and Reproductive Medical Unit Department, Suresnes, France
- Université Paris Saclay, UVSQ, INRAE, BREED, 78350, Jouy-en-Josas, France - ENVA, BREED, 94700, Maison-Alfort, France
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174
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Harvesting, processing, and evaluation of in vitro-manipulated equine preantral follicles: A review. Theriogenology 2020; 156:283-295. [PMID: 32905900 DOI: 10.1016/j.theriogenology.2020.06.044] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Accepted: 06/27/2020] [Indexed: 12/14/2022]
Abstract
The mammalian ovary is responsible for essential stages of folliculogenesis and hormonal production, regulating the female physiological functions during the menstrual/estrous cycles. The mare has been considered an attractive model for comparative studies due to the striking similarities shared with women regarding in vivo and in vitro folliculogenesis. The ovarian follicular population in horses contains a large number of oocytes enclosed in preantral follicles that are yet to be explored. Therefore, the in vitro manipulation of equine preantral follicles aims to avoid the process of atresia and promote the development of follicles with competent oocytes. In this regard, after ovarian tissue harvesting, the use of appropriate processing techniques, as well as suitable approaches to evaluating equine preantral follicles and ovarian tissue, are necessary. Although high-quality equine ovarian tissue can be obtained from several sources, some critical aspects, such as the age of the animals, ovarian cyclicity, reproductive phase, and the types of ovarian structures, should be considered. Therefore, this review will focus on providing an update on the most current advances concerning the critical factors able to influence equine preantral follicle quality and quantity. Also, the in vivo strategies used to harvest equine ovarian tissue, the approaches to manipulating ovarian tissue post-harvesting, the techniques for processing ovarian tissue, and the classical approaches used to evaluate preantral follicles will be discussed.
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175
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Fattahi A, Liverani L, Dittrich R, Hoffmann I, Boccaccini AR, Beckmann MW, Bleisinger N. Optimization of Porcine Ovarian Follicle Isolation Methods for Better Developmental Potential. Tissue Eng Part A 2020; 26:712-719. [PMID: 32598233 DOI: 10.1089/ten.tea.2020.0058] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
In the present study, we present a comparative analysis among the outputs of porcine follicle isolation using either mechanical technique alone or in combination with enzymes, proposing an optimized protocol useful for all further applications related to follicle in vitro growth and reproductive tissue engineering. The porcine follicles were isolated using mechanical technique alone (hand blender and scalpels) or in combination with collagenase or Liberase Dispase High (DH) at different doses applying different protocols. Finally, the number, morphology, and stage of isolated follicles were compared between the protocols. Moreover, the follicle viability (live/dead assay) and morphology (rhodamine phalloidin and 4',6-diamidino-2-phenylindole staining and scanning electron microscopy analysis) were evaluated after 10 days of culture. We found an optimum protocol for intact follicle isolation using the mechanical technique in combination with enzymes at a concentration of 0.5 mg/mL. However, the number of total isolated follicles and primordial follicles was significantly higher when collagenase was used compared to Liberase DH (p < 0.05), while Liberase DH could isolate a significantly higher percentage of preantral follicles. After 10 days of culture, the morphology and health status of follicles were statistically higher when Liberase DH was used in comparison with collagenase. Moreover, on the follicles extracted with Liberase DH, it was possible to observe theca cells covering part of the follicle surface. In conclusion, we demonstrated that the intact primary or secondary follicles could not be obtained using only mechanical methods, which led to the isolation of denuded oocytes and dramatically damaged follicles. We concluded that the collagenase-based follicle isolation could negatively affect the morphology and developmental potential of the follicles. Moreover, the incubation of ovarian cortex tissues with Liberase DH solution is an optimized protocol for porcine ovarian follicle isolation with developmental competence. Impact statement Isolation and in vitro maturation of follicles can pave the way for activities on reproductive tissue engineering (REPROTEN) and developing an artificial ovary. In this regard, the standardization and optimization of the extraction methods are pivotal for the design of experiment of follicle in vitro growth. In the present study, we provided a comparative analysis among the outputs of porcine follicle isolation using either mechanical technique alone or in combination with collagenase or Liberase DH, proposing an optimized protocol useful for all further applications related to follicles' in vitro growth and REPROTEN.
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Affiliation(s)
- Amir Fattahi
- Department of Obstetrics and Gynecology, Comprehensive Cancer Center ER-EMN, Friedrich-Alexander University of Erlangen-Nürnberg, Erlangen University Hospital, Erlangen, Germany.,Women's Reproductive Health Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Liliana Liverani
- Department of Materials Science and Engineering, Institute of Biomaterials, Friedrich-Alexander University of Erlangen-Nürnberg, Erlangen, Germany
| | - Ralf Dittrich
- Department of Obstetrics and Gynecology, Comprehensive Cancer Center ER-EMN, Friedrich-Alexander University of Erlangen-Nürnberg, Erlangen University Hospital, Erlangen, Germany
| | - Inge Hoffmann
- Department of Obstetrics and Gynecology, Comprehensive Cancer Center ER-EMN, Friedrich-Alexander University of Erlangen-Nürnberg, Erlangen University Hospital, Erlangen, Germany
| | - Aldo R Boccaccini
- Department of Materials Science and Engineering, Institute of Biomaterials, Friedrich-Alexander University of Erlangen-Nürnberg, Erlangen, Germany
| | - Matthias W Beckmann
- Department of Obstetrics and Gynecology, Comprehensive Cancer Center ER-EMN, Friedrich-Alexander University of Erlangen-Nürnberg, Erlangen University Hospital, Erlangen, Germany
| | - Nathalie Bleisinger
- Department of Obstetrics and Gynecology, Comprehensive Cancer Center ER-EMN, Friedrich-Alexander University of Erlangen-Nürnberg, Erlangen University Hospital, Erlangen, Germany
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176
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Quan N, Mara JN, Grover AR, Pavone ME, Duncan FE. Spatial Analysis of Growing Follicles in the Human Ovary to Inform Tissue Engineering Strategies. Tissue Eng Part A 2020; 26:733-746. [PMID: 32598235 DOI: 10.1089/ten.tea.2020.0051] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Cancer survivorship has increased considerably, but common cancer treatments may threaten female reproductive health and fertility. In females, standard fertility preservation techniques include egg and embryo banking and ovarian tissue cryopreservation, but these methods are not suitable for all individuals. Emerging fertility preservation technologies include in vitro follicle growth and ovarian bioprosthetics. Although these platforms hold tremendous promise, they remain in the preclinical phase likely because of our inability to adequately phenocopy the complexity of the in vivo ovarian environment. The goal of this study was to use an established research archive of fixed human ovarian tissue established through the Oncofertility Consortium to better understand the dynamics and milieu of growing follicles within the human ovary. We performed a histological analysis of the immediate surroundings of primary and secondary stage follicles. We evaluated oocyte and follicle diameters of these growing follicles, analyzed their growth trajectories, and mapped their precise relationships to other stage follicles within a defined area. We also stratified our findings according to participant age and previous treatment history. Our results serve as in vivo benchmarks for follicles grown in vitro and provide insight into how follicles should be seeded spatially within bioprosthetic ovaries, potentially improving the efficacy and clinical translation of these emerging technologies. Impact statement Life-preserving cancer treatments have greatly increased survivorship. However, treatments often have off-target health consequences that threaten female reproductive health and fertility. Although several standard fertility preservation options exist, there is a constant need to explore and expand options for all populations. In vitro follicle growth and ovarian bioprosthetics are new experimental procedures, which are currently limited to proof of concept. In this study, we analyzed human ovarian tissue from a deidentified biospecimen repository to characterize the growing follicle landscape with the ultimate goal of informing bioengineering practices. This spatial analysis pinpoints the geometry of growing follicles within the human ovary and provides a framework for paralleling this environment in ex vivo platforms.
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Affiliation(s)
- Natalie Quan
- Department of Obstetrics and Gynecology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA
| | - Jamie N Mara
- Department of Obstetrics and Gynecology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA
| | - Allison R Grover
- Department of Obstetrics and Gynecology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA
| | - Mary Ellen Pavone
- Department of Obstetrics and Gynecology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA
| | - Francesca E Duncan
- Department of Obstetrics and Gynecology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA
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177
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Li H, Fan W, Zhu X. Three‐dimensional printing: The potential technology widely used in medical fields. J Biomed Mater Res A 2020; 108:2217-2229. [DOI: 10.1002/jbm.a.36979] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Revised: 03/30/2020] [Accepted: 04/04/2020] [Indexed: 12/19/2022]
Affiliation(s)
- Hongjian Li
- Southern Marine Science and Engineering Guangdong Laboratory ZhanjiangMarine Medical Research Institute of Guangdong Zhanjiang (GDZJMMRI), Guangdong Medical University Zhanjiang China
| | - Wenguo Fan
- Department of Anesthesiology, Guanghua School of StomatologyHospital of Stomatology, Sun Yat‐sen University Guangzhou China
| | - Xiao Zhu
- Southern Marine Science and Engineering Guangdong Laboratory ZhanjiangMarine Medical Research Institute of Guangdong Zhanjiang (GDZJMMRI), Guangdong Medical University Zhanjiang China
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178
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Woodruff TK. Lessons from bioengineering the ovarian follicle: a personal perspective. Reproduction 2020; 158:F113-F126. [PMID: 31846436 DOI: 10.1530/rep-19-0190] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Accepted: 07/15/2019] [Indexed: 12/14/2022]
Abstract
The ovarian follicle and its maturation captivated my imagination and inspired my scientific journey - what we know now about this remarkable structure is captured in this invited review. In the past decade, our knowledge of the ovarian follicle expanded dramatically as cross-disciplinary collaborations brought new perspectives to bear, ultimately leading to the development of extragonadal follicles as model systems with significant clinical implications. Follicle maturation in vitro in an 'artificial' ovary became possible by learning what the follicle is fundamentally and autonomously capable of - which turns out to be quite a lot. Progress in understanding and harnessing follicle biology has been aided by engineers and materials scientists who created hardware that enables tissue function for extended periods of time. The EVATAR system supports extracorporeal ovarian function in an engineered environment that mimics the endocrine environment of the reproductive tract. Finally, applying the tools of inorganic chemistry, we discovered that oocytes require zinc to mature over time - a truly new aspect of follicle biology with no antecedent other than the presence of zinc in sperm. Drawing on the tools and ideas from the fields of bioengineering, materials science and chemistry unlocked follicle biology in ways that we could not have known or even predicted. Similarly, how today's basic science discoveries regarding ovarian follicle maturation are translated to improve the experience of tomorrow's patients is yet to be determined.
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Affiliation(s)
- Teresa K Woodruff
- Department of Obstetrics and Gynecology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA
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179
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Dalton PD, Woodfield TBF, Mironov V, Groll J. Advances in Hybrid Fabrication toward Hierarchical Tissue Constructs. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2020; 7:1902953. [PMID: 32537395 PMCID: PMC7284200 DOI: 10.1002/advs.201902953] [Citation(s) in RCA: 73] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Revised: 01/17/2020] [Indexed: 05/05/2023]
Abstract
The diversity of manufacturing processes used to fabricate 3D implants, scaffolds, and tissue constructs is continuously increasing. This growing number of different applicable fabrication technologies include electrospinning, melt electrowriting, volumetric-, extrusion-, and laser-based bioprinting, the Kenzan method, and magnetic and acoustic levitational bioassembly, to name a few. Each of these fabrication technologies feature specific advantages and limitations, so that a combination of different approaches opens new and otherwise unreachable opportunities for the fabrication of hierarchical cell-material constructs. Ongoing challenges such as vascularization, limited volume, and repeatability of tissue constructs at the resolution required to mimic natural tissue is most likely greater than what one manufacturing technology can overcome. Therefore, the combination of at least two different manufacturing technologies is seen as a clear and necessary emerging trend, especially within biofabrication. This hybrid approach allows more complex mechanics and discrete biomimetic structures to address mechanotransduction and chemotactic/haptotactic cues. Pioneering milestone papers in hybrid fabrication for biomedical purposes are presented and recent trends toward future manufacturing platforms are analyzed.
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Affiliation(s)
- Paul D. Dalton
- Department of Functional Materials in Medicine and Dentistry and Bavarian Polymer InstituteUniversity of WürzburgWürzburg97070Germany
| | - Tim B. F. Woodfield
- Christchurch Regenerative Medicine and Tissue Engineering (CReaTE) GroupDepartment of Orthopaedic Surgery and Musculoskeletal MedicineCentre for Bioengineering & NanomedicineUniversity of Otago ChristchurchChristchurch8011New Zealand
- New Zealand Medical Technologies Centre of Research Excellence (MedTech CoRE)Auckland0600‐2699New Zealand
| | - Vladimir Mironov
- 3D Bioprinting SolutionsMoscow115409Russia
- Institute for Regenerative MedicineSechenov Medical UniversityMoscow119992Russia
| | - Jürgen Groll
- Department of Functional Materials in Medicine and Dentistry and Bavarian Polymer InstituteUniversity of WürzburgWürzburg97070Germany
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180
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Gao H, Liu C, Wu B, Cui H, Zhao Y, Duan Y, Gao F, Gu Q, Wang H, Li W. Effects of Different Biomaterials and Cellular Status on Testicular Cell Self-Organization. ACTA ACUST UNITED AC 2020; 4:e1900292. [PMID: 32453509 DOI: 10.1002/adbi.201900292] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Revised: 05/03/2020] [Indexed: 01/12/2023]
Abstract
A multicellular organism's development is coupled with cellular self-organization, which is regulated by cell-cell interactions and cell-extracellular matrix (ECM) crosstalk. Testicular cells from different species such as mouse, rat, and porcine can self-organize into seminiferous tubules both in vitro and in vivo, but the understanding of the functional role of the ECM during this process is limited. Here, it is shown that mouse testicular cells encapsulated with the biomaterial Matrigel can self-organize into seminiferous tubules with blood-testis barrier (BTB) formation and Leydig cell differentiation. By varying the encapsulation method, a combination of sodium alginate and collagen is used to promote reorganization of seminiferous tubules, which resemble those in vivo. In addition, the self-organization ability of testicular cells declines with advanced cell age, and those germ cells play a pivotal role in this process. These findings will be helpful to understand the self-organization process of testicular cells and provide insights for the reconstruction of testes.
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Affiliation(s)
- Hui Gao
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, 100101, P. R. China
| | - Chao Liu
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, 100101, P. R. China
| | - Bingbing Wu
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, 100101, P. R. China.,Colleague of Life Science, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Hang Cui
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, 100101, P. R. China
| | - Yan Zhao
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, 100101, P. R. China.,Colleague of Life Science, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Yongchao Duan
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, 100101, P. R. China
| | - Fei Gao
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, 100101, P. R. China.,Colleague of Life Science, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Qi Gu
- State Key Laboratory of Membrane Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, 100101, P. R. China.,Stem cell and Regenerative Medicine Innovation Institute, Chinese Academy of Sciences, Beijing, 100101, P. R. China
| | - Hongmei Wang
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, 100101, P. R. China.,Colleague of Life Science, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Wei Li
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, 100101, P. R. China.,Colleague of Life Science, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
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181
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Lopes EPF, Rodrigues GQ, de Brito DCC, Rocha RMP, Ferreira ACA, de Sá NAR, Silva RFD, de Alcântara GLH, Alves BG, Figueiredo JRD, Zelinski M, Rodrigues APR. Vitrification of caprine secondary and early antral follicles as a perspective to preserve fertility function. Reprod Biol 2020; 20:371-378. [PMID: 32418820 DOI: 10.1016/j.repbio.2020.05.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Revised: 04/28/2020] [Accepted: 05/03/2020] [Indexed: 01/09/2023]
Abstract
The present study aimed to evaluate the structure, survival and development of isolated caprine (secondary-SEC and early antral-EANT) follicles, after vitrification in the presence of synthetic polymers and in vitro culture. Additionally, transzonal projections (TZPs) and p450 aromatase enzyme were evaluated. After isolation, SEC and EANT follicles were in vitro cultured for six days or vitrified. After one week, SEC and EANT follicles were warmed and also in vitro cultured for six days. Data revealed that the percentage of morphologically normal follicles was similar between fresh and vitrified follicles in both follicular categories and antrum formation rate was similar between fresh and vitrified SEC follicles. Fluorescence by calcein-AM did not show difference between fresh and vitrified (SEC and EANT) follicles, however, the trypan blue test showed low viability for vitrified follicles. The integrity of TZPs was not affected between fresh and vitrified SEC follicles, however, in vitrified EANT follicles, there were signs of TZPs loss. Regarding steroidogenic function, it was observed a positive staining for p450 aromatase enzyme in fresh and vitrified SEC and EANT follicles. It was concluded that SEC follicles seem to be more resistant to vitrification than EANT follicles, as shown by the trypan blue test and TZPs assay. Future studies may confirm this hypothesis, in order to consolidate the use of SEC and EANT follicles as an alternative to ovary cryopreservation.
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Affiliation(s)
- Everton Pimentel Ferreira Lopes
- Faculty of Veterinary Medicine, Laboratory of Manipulation of Oocytes and Preantral Follicles (LAMOFOPA), State University of Ceará, Fortaleza, CE, Brazil
| | - Giovanna Quintino Rodrigues
- Faculty of Veterinary Medicine, Laboratory of Manipulation of Oocytes and Preantral Follicles (LAMOFOPA), State University of Ceará, Fortaleza, CE, Brazil
| | - Danielle Cristina Calado de Brito
- Faculty of Veterinary Medicine, Laboratory of Manipulation of Oocytes and Preantral Follicles (LAMOFOPA), State University of Ceará, Fortaleza, CE, Brazil
| | | | - Anna Clara Accioly Ferreira
- Faculty of Veterinary Medicine, Laboratory of Manipulation of Oocytes and Preantral Follicles (LAMOFOPA), State University of Ceará, Fortaleza, CE, Brazil
| | - Naíza Arcângela Ribeiro de Sá
- Faculty of Veterinary Medicine, Laboratory of Manipulation of Oocytes and Preantral Follicles (LAMOFOPA), State University of Ceará, Fortaleza, CE, Brazil
| | - Renato Félix da Silva
- Faculty of Veterinary Medicine, Laboratory of Manipulation of Oocytes and Preantral Follicles (LAMOFOPA), State University of Ceará, Fortaleza, CE, Brazil
| | - Gabriel Las Heras de Alcântara
- Faculty of Veterinary Medicine, Laboratory of Manipulation of Oocytes and Preantral Follicles (LAMOFOPA), State University of Ceará, Fortaleza, CE, Brazil
| | | | - José Ricardo de Figueiredo
- Faculty of Veterinary Medicine, Laboratory of Manipulation of Oocytes and Preantral Follicles (LAMOFOPA), State University of Ceará, Fortaleza, CE, Brazil
| | - Mary Zelinski
- Division of Reproductive and Developmental Sciences, Oregon National Primate Research Center, Beaverton, OR, USA
| | - Ana Paula Ribeiro Rodrigues
- Faculty of Veterinary Medicine, Laboratory of Manipulation of Oocytes and Preantral Follicles (LAMOFOPA), State University of Ceará, Fortaleza, CE, Brazil.
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182
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Simon LE, Kumar TR, Duncan FE. In vitro ovarian follicle growth: a comprehensive analysis of key protocol variables†. Biol Reprod 2020; 103:455-470. [PMID: 32406908 DOI: 10.1093/biolre/ioaa073] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2020] [Revised: 05/06/2020] [Accepted: 05/12/2020] [Indexed: 12/18/2022] Open
Abstract
Folliculogenesis is a complex process that requires integration of autocrine, paracrine, and endocrine factors together with tightly regulated interactions between granulosa cells and oocytes for the growth and survival of healthy follicles. Culture of ovarian follicles is a powerful approach for investigating folliculogenesis and oogenesis in a tightly controlled environment. This method has not only enabled unprecedented insight into the fundamental biology of follicle development but also has far-reaching translational applications, including in fertility preservation for women whose ovarian follicles may be damaged by disease or its treatment or in wildlife conservation. Two- and three-dimensional follicle culture systems have been developed and are rapidly evolving. It is clear from a review of the literature on isolated follicle culture methods published over the past two decades (1980-2018) that protocols vary with respect to species examined, follicle isolation methods, culture techniques, culture media and nutrient and hormone supplementation, and experimental endpoints. Here we review the heterogeneity among these major variables of follicle culture protocols.
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Affiliation(s)
- Leah E Simon
- Department of Obstetrics and Gynecology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA
| | - T Rajendra Kumar
- Department of Obstetrics and Gynecology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA.,Department of Obstetrics and Gynecology, University of Colorado, Aurora, Colorado, USA
| | - Francesca E Duncan
- Department of Obstetrics and Gynecology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA
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183
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McKinnon KE, Sensharma R, Williams C, Ravix J, Getsios S, Woodruff TK. Development of human ectocervical tissue models with physiologic endocrine and paracrine signaling†. Biol Reprod 2020; 103:497-507. [PMID: 32401296 DOI: 10.1093/biolre/ioaa068] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Revised: 04/08/2020] [Accepted: 05/12/2020] [Indexed: 01/08/2023] Open
Abstract
There is a shortage of research models that adequately represent the unique mucosal environment of human ectocervix, limiting development of new therapies for treating infertility, infection, or cancer. We developed three microphysiologic human ectocervix models to study hormone action during homeostasis. First, we reconstructed ectocervix using decellularized extracellular matrix scaffolds, which supported cell integration and could be clinically useful. Secondly, we generated organotypic systems consisting of ectocervical explants co-cultured with murine ovaries or cycling exogenous hormones, which mimicked human menstrual cycles. Finally, we engineered ectocervix tissue consisting of tissue-specific stromal-equivalents and fully-differentiated epithelium that mimicked in vivo physiology, including squamous maturation, hormone response, and mucin production, and remained viable for 28 days in vitro. The localization of differentiation-dependent mucins in native and engineered tissue was identified for the first time, which will allow increased efficiency in mucin targeting for drug delivery. In summary, we developed and characterized three microphysiologic human ectocervical tissue models that will be useful for a variety of research applications, including preventative and therapeutic treatments, drug and toxicology studies, and fundamental research on hormone action in a historically understudied tissue that is critical for women's health.
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Affiliation(s)
- Kelly E McKinnon
- Department of Obstetrics and Gynecology, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Rhitwika Sensharma
- Department of Obstetrics and Gynecology, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Chloe Williams
- Department of Obstetrics and Gynecology, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Jovanka Ravix
- Department of Obstetrics and Gynecology, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Spiro Getsios
- Department of Dermatology, Feinberg School of Medicine, Northwestern University, Chicago IL, USA
| | - Teresa K Woodruff
- Department of Obstetrics and Gynecology, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
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184
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Pennarossa G, Ghiringhelli M, Gandolfi F, Brevini TAL. Whole-ovary decellularization generates an effective 3D bioscaffold for ovarian bioengineering. J Assist Reprod Genet 2020; 37:1329-1339. [PMID: 32361917 PMCID: PMC7311562 DOI: 10.1007/s10815-020-01784-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Accepted: 04/14/2020] [Indexed: 02/06/2023] Open
Abstract
PURPOSE To develop a new protocol for whole-ovary decellularization for the production of a 3D bioscaffold suitable for in vitro/ex vivo studies and for the reconstruction of a bioengineered ovary. METHODS Porcine ovaries were subjected to the decellularization process (DECELL; n = 20) that involved a freeze-thaw cycle, followed by sequential incubations in 0.5% SDS for 3 h, 1% Triton X-100 for 9 h, and 2% deoxycholate for 12 h. Untreated ovaries were used as a control (CTR; n = 6). Both groups were analyzed to evaluate cell and DNA removal as well as ECM preservation. DECELL bioscaffolds were assessed for cytotoxicity and cell homing ability. RESULTS DECELL ovaries maintained shape and homogeneity without any deformation, while their color turned from red to white. Histological staining and DNA quantification confirmed a decrease of 98.11% in DNA content, compared with the native tissue (CTR). Histochemical assessments demonstrated the preservation of intact ECM microarchitecture after the decellularization process. This was also confirmed by quantitative analysis of collagen, elastin, and GAG contents. DECELL bioscaffold showed no cytotoxic effects in co-culture and, when re-seeded with homologous fibroblasts, encouraged a rapid cell adhesion and migration, with repopulating cells increasing in number and aggregating in cluster-like structures, consistent with its ability to sustain cell adherence, proliferation, and differentiation. CONCLUSION The protocol described allows for the generation of a 3D bioscaffold that may constitute a suitable model for ex vivo culture of ovarian cells and follicles, as well as a promising tool for the reconstruction of a bioengineered ovary.
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Affiliation(s)
- Georgia Pennarossa
- Laboratory of Biomedical Embryology, Department of Health, Animal Science and Food Safety and Center for Stem Cell Research, Università degli Studi di Milano, via Celoria 10, 20133, Milan, Italy
| | - Matteo Ghiringhelli
- Laboratory of Biomedical Embryology, Department of Health, Animal Science and Food Safety and Center for Stem Cell Research, Università degli Studi di Milano, via Celoria 10, 20133, Milan, Italy
| | - Fulvio Gandolfi
- Department of Agricultural and Environmental Sciences - Production, Landscape, Agroenergy and Center for Stem Cell Research, Università degli Studi di Milano, via Celoria 2, 20133, Milan, Italy
| | - Tiziana A L Brevini
- Laboratory of Biomedical Embryology, Department of Health, Animal Science and Food Safety and Center for Stem Cell Research, Università degli Studi di Milano, via Celoria 10, 20133, Milan, Italy.
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185
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Bhattacharya S, Calar K, de la Puente P. Mimicking tumor hypoxia and tumor-immune interactions employing three-dimensional in vitro models. J Exp Clin Cancer Res 2020; 39:75. [PMID: 32357910 PMCID: PMC7195738 DOI: 10.1186/s13046-020-01583-1] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Accepted: 04/22/2020] [Indexed: 02/06/2023] Open
Abstract
The heterogeneous tumor microenvironment (TME) is highly complex and not entirely understood. These complex configurations lead to the generation of oxygen-deprived conditions within the tumor niche, which modulate several intrinsic TME elements to promote immunosuppressive outcomes. Decoding these communications is necessary for designing effective therapeutic strategies that can effectively reduce tumor-associated chemotherapy resistance by employing the inherent potential of the immune system.While classic two-dimensional in vitro research models reveal critical hypoxia-driven biochemical cues, three-dimensional (3D) cell culture models more accurately replicate the TME-immune manifestations. In this study, we review various 3D cell culture models currently being utilized to foster an oxygen-deprived TME, those that assess the dynamics associated with TME-immune cell penetrability within the tumor-like spatial structure, and discuss state of the art 3D systems that attempt recreating hypoxia-driven TME-immune outcomes. We also highlight the importance of integrating various hallmarks, which collectively might influence the functionality of these 3D models.This review strives to supplement perspectives to the quickly-evolving discipline that endeavors to mimic tumor hypoxia and tumor-immune interactions using 3D in vitro models.
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Affiliation(s)
- Somshuvra Bhattacharya
- Cancer Biology and Immunotherapies Group, Sanford Research, 2301 E 60th Street N, Sioux Falls, SD, 57104, USA
| | - Kristin Calar
- Cancer Biology and Immunotherapies Group, Sanford Research, 2301 E 60th Street N, Sioux Falls, SD, 57104, USA
| | - Pilar de la Puente
- Cancer Biology and Immunotherapies Group, Sanford Research, 2301 E 60th Street N, Sioux Falls, SD, 57104, USA.
- Department of Surgery, University of South Dakota Sanford School of Medicine, Sioux Falls, SD, USA.
- Department of Chemistry and Biochemistry, South Dakota State University, Brookings, SD, USA.
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186
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Kirillova A, Bushev S, Abubakirov A, Sukikh G. Bioethical and Legal Issues in 3D Bioprinting. Int J Bioprint 2020; 6:272. [PMID: 33088986 PMCID: PMC7557521 DOI: 10.18063/ijb.v6i3.272] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2020] [Accepted: 03/16/2020] [Indexed: 01/09/2023] Open
Abstract
Bioethical and legal issues of three-dimensional (3D) bioprinting as the emerging field of biotechnology have not yet been widely discussed among bioethicists around the world, including Russia. The scope of 3D bioprinting includes not only the issues of the advanced technologies of human tissues and organs printing but also raises a whole layer of interdisciplinary problems of modern science, technology, bioethics, and philosophy. This article addresses the ethical and legal issues of bioprinting of artificial human organs.
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Affiliation(s)
- Anastasia Kirillova
- National Medical Research Center for Obstetrics, Gynecology and Perinatology Named After Academician V.I. Kulakov of the Ministry of Healthcare of Russian Federation, Moscow, 117513, Russia
| | - Stanislav Bushev
- Department of Philosophy, Lomonosov Moscow State University, Moscow, 119991, Russia
| | - Aydar Abubakirov
- National Medical Research Center for Obstetrics, Gynecology and Perinatology Named After Academician V.I. Kulakov of the Ministry of Healthcare of Russian Federation, Moscow, 117513, Russia
| | - Gennady Sukikh
- National Medical Research Center for Obstetrics, Gynecology and Perinatology Named After Academician V.I. Kulakov of the Ministry of Healthcare of Russian Federation, Moscow, 117513, Russia
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187
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Gargus ES, Rogers HB, McKinnon KE, Edmonds ME, Woodruff TK. Engineered reproductive tissues. Nat Biomed Eng 2020; 4:381-393. [PMID: 32251392 PMCID: PMC7416444 DOI: 10.1038/s41551-020-0525-x] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2019] [Accepted: 02/05/2020] [Indexed: 12/14/2022]
Abstract
Engineered male and female biomimetic reproductive tissues are being developed as autonomous in vitro units or as integrated multi-organ in vitro systems to support germ cell and embryo function, and to display characteristic endocrine phenotypic patterns, such as the 28-day human ovulatory cycle. In this Review, we summarize how engineered reproductive tissues facilitate research in reproductive biology, and overview strategies for making engineered reproductive tissues that might eventually allow the restoration of reproductive capacity in patients.
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Affiliation(s)
- Emma S Gargus
- Department of Obstetrics and Gynecology, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Hunter B Rogers
- Department of Obstetrics and Gynecology, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Kelly E McKinnon
- Department of Obstetrics and Gynecology, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Maxwell E Edmonds
- Department of Obstetrics and Gynecology, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Teresa K Woodruff
- Department of Obstetrics and Gynecology, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA.
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188
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Fan D, Li Y, Wang X, Zhu T, Wang Q, Cai H, Li W, Tian Y, Liu Z. Progressive 3D Printing Technology and Its Application in Medical Materials. Front Pharmacol 2020; 11:122. [PMID: 32265689 PMCID: PMC7100535 DOI: 10.3389/fphar.2020.00122] [Citation(s) in RCA: 70] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2019] [Accepted: 01/28/2020] [Indexed: 12/12/2022] Open
Abstract
Three-dimensional (3D) printing enables patient-specific anatomical level productions with high adjustability and resolution in microstructures. With cost-effective manufacturing for high productivity, 3D printing has become a leading healthcare and pharmaceutical manufacturing technology, which is suitable for variety of applications including tissue engineering models, anatomical models, pharmacological design and validation model, medical apparatus and instruments. Today, 3D printing is offering clinical available medical products and platforms suitable for emerging research fields, including tissue and organ printing. In this review, our goal is to discuss progressive 3D printing technology and its application in medical materials. The additive overview also provides manufacturing techniques and printable materials.
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Affiliation(s)
- Daoyang Fan
- Department of Orthopedic, Peking University Third Hospital, Beijing, China.,Engineering Research Center of Bone and Joint Precision Medicine, Ministry of Education, Beijing, China
| | - Yan Li
- Department of Orthopedic, Peking University Third Hospital, Beijing, China.,Engineering Research Center of Bone and Joint Precision Medicine, Ministry of Education, Beijing, China
| | - Xing Wang
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics & Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Tengjiao Zhu
- Department of Orthopedic, Peking University Third Hospital, Beijing, China.,Engineering Research Center of Bone and Joint Precision Medicine, Ministry of Education, Beijing, China
| | - Qi Wang
- Department of Pediatrics, Peking University Third Hospital, Beijing, China
| | - Hong Cai
- Department of Orthopedic, Peking University Third Hospital, Beijing, China.,Engineering Research Center of Bone and Joint Precision Medicine, Ministry of Education, Beijing, China
| | - Weishi Li
- Department of Orthopedic, Peking University Third Hospital, Beijing, China.,Engineering Research Center of Bone and Joint Precision Medicine, Ministry of Education, Beijing, China
| | - Yun Tian
- Department of Orthopedic, Peking University Third Hospital, Beijing, China.,Engineering Research Center of Bone and Joint Precision Medicine, Ministry of Education, Beijing, China
| | - Zhongjun Liu
- Department of Orthopedic, Peking University Third Hospital, Beijing, China.,Engineering Research Center of Bone and Joint Precision Medicine, Ministry of Education, Beijing, China
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189
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Engler AJ, Cooper-White J. Academic vs industry perspectives in 3D bioprinting. APL Bioeng 2020; 4:010401. [PMID: 32161831 DOI: 10.1063/5.0004340] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Accepted: 02/24/2020] [Indexed: 12/19/2022] Open
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190
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Unagolla JM, Jayasuriya AC. Hydrogel-based 3D bioprinting: A comprehensive review on cell-laden hydrogels, bioink formulations, and future perspectives. APPLIED MATERIALS TODAY 2020; 18:100479. [PMID: 32775607 PMCID: PMC7414424 DOI: 10.1016/j.apmt.2019.100479] [Citation(s) in RCA: 193] [Impact Index Per Article: 48.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Hydrogel plays a vital role in cell-laden three dimensional (3D) bioprinting, whereas those hydrogels mimic the physical and biochemical characteristics of native extracellular matrix (ECM). The complex microenvironment of the ECM does not replicate from the traditional static microenvironment of the hydrogel, but the evolution of the 3D bioprinting facilitates to accommodate the dynamic modulation and spatial heterogeneity of the hydrogel system. Selection of hydrogel for 3D bioprinting depends on the printing techniques including microextrusion, inkjet, laser-assisted printing, and stereolithography. In this review, we specifically cover the 3D printable hydrogels where cells can be encapsulated without significant reduction in the cell viability. The recent research highlights of the most widely used hydrogel materials are elucidated in terms of stability of the hydrogel system, cross-linking method, support cell types and their post-printing cell viability. Also, the techniques used to improve the mechanical and biological properties of the hydrogels, such as adding various organic and inorganic materials and making microchannels, are discussed. Furthermore, the recent advances in vascularized tissue construct and scaffold-free bioprinting as a promising method for vascularization are covered in this review. The recent trends in four-dimensional (4D) bioprinting as a stimuli-responsive formation of new organs, and 3D bioprinting based organ-on-chip systems are also discussed.
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Affiliation(s)
- Janitha M. Unagolla
- Biomedical Engineering Program, Department of Bioengineering, College of Engineering, University of Toledo, Toledo, OH 43607, USA
| | - Ambalangodage C. Jayasuriya
- Biomedical Engineering Program, Department of Bioengineering, College of Engineering, University of Toledo, Toledo, OH 43607, USA
- Department of Orthopedic Surgery, College of Medicine and Life Sciences, University of Toledo, Toledo, OH 43614, USA
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191
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Levato R, Jungst T, Scheuring RG, Blunk T, Groll J, Malda J. From Shape to Function: The Next Step in Bioprinting. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e1906423. [PMID: 32045053 PMCID: PMC7116209 DOI: 10.1002/adma.201906423] [Citation(s) in RCA: 220] [Impact Index Per Article: 55.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Revised: 11/08/2019] [Indexed: 05/04/2023]
Abstract
In 2013, the "biofabrication window" was introduced to reflect the processing challenge for the fields of biofabrication and bioprinting. At that time, the lack of printable materials that could serve as cell-laden bioinks, as well as the limitations of printing and assembly methods, presented a major constraint. However, recent developments have now resulted in the availability of a plethora of bioinks, new printing approaches, and the technological advancement of established techniques. Nevertheless, it remains largely unknown which materials and technical parameters are essential for the fabrication of intrinsically hierarchical cell-material constructs that truly mimic biologically functional tissue. In order to achieve this, it is urged that the field now shift its focus from materials and technologies toward the biological development of the resulting constructs. Therefore, herein, the recent material and technological advances since the introduction of the biofabrication window are briefly summarized, i.e., approaches how to generate shape, to then focus the discussion on how to acquire the biological function within this context. In particular, a vision of how biological function can evolve from the possibility to determine shape is outlined.
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Affiliation(s)
- Riccardo Levato
- Department of Orthopaedics, University Medical Center Utrecht, Utrecht University, 3584 CX, Utrecht, The Netherlands
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Utrecht University, 3584 CX, Utrecht, The Netherlands
| | - Tomasz Jungst
- Department of Functional Materials in Medicine and Dentistry and Bavarian Polymer Institute, University of Würzburg, Pleicherwall 2, 97070, Würzburg, Germany
| | - Ruben G Scheuring
- Department of Functional Materials in Medicine and Dentistry and Bavarian Polymer Institute, University of Würzburg, Pleicherwall 2, 97070, Würzburg, Germany
| | - Torsten Blunk
- Department of Trauma, Hand, Plastic and Reconstructive Surgery, University of Würzburg, Oberdürrbacher Str. 6, 97080, Würzburg, Germany
| | - Juergen Groll
- Department of Functional Materials in Medicine and Dentistry and Bavarian Polymer Institute, University of Würzburg, Pleicherwall 2, 97070, Würzburg, Germany
| | - Jos Malda
- Department of Orthopaedics, University Medical Center Utrecht, Utrecht University, 3584 CX, Utrecht, The Netherlands
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Utrecht University, 3584 CX, Utrecht, The Netherlands
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192
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Chibelean CB, Petca RC, Radu DC, Petca A. State of the Art in Fertility Preservation for Female Patients Prior to Oncologic Therapies. ACTA ACUST UNITED AC 2020; 56:medicina56020089. [PMID: 32102169 PMCID: PMC7073829 DOI: 10.3390/medicina56020089] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2019] [Revised: 02/07/2020] [Accepted: 02/18/2020] [Indexed: 12/14/2022]
Abstract
Quality of life improvement stands as one of the main goals of the medical sciences. Increasing cancer survival rates associated with better early detection and extended therapeutic options led to the specific modeling of patients’ choices, comprising aspects of reproductive life that correlated with the evolution of modern society, and requires better assessment. Of these, fertility preservation and ovarian function conservation for pre-menopause female oncologic patients pose a contemporary challenge due to procreation age advance in evolved societies and to the growing expectations regarding cancer treatment. Progress made in cell and tissue-freezing technologies brought hope and shed new light on the onco-fertility field. Additionally, crossing roads with general fertility and senescence studies proved highly beneficial due to the enlarged scope and better synergies and funding. We here strive to bring attention to this domain of care and to sensitize all medical specialties towards a more cohesive approach and to better communication among caregivers and patients.
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Affiliation(s)
- Călin Bogdan Chibelean
- Department of Urology, George Emil Palade University of Medicine, Pharmacy, Science, and Technology of Targu-Mures, 540139 Targu-Mures, Romania;
- Mureș County Hospital, 540136 Targu-Mures, Romania
| | - Răzvan-Cosmin Petca
- “Carol Davila” University of Medicine and Pharmacy, 050471 Bucharest, Romania;
- Department of Urology, “Prof. Dr. Th. Burghele” Clinical Hospital, 050659 Bucharest, Romania
- Correspondence: ; Tel.: +40-722-224492
| | | | - Aida Petca
- “Carol Davila” University of Medicine and Pharmacy, 050471 Bucharest, Romania;
- Department of Obstetrics and Gynecology, Elias University Emergency Hospital, 011461 Bucharest, Romania
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193
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Gillispie G, Prim P, Copus J, Fisher J, Mikos AG, Yoo JJ, Atala A, Lee SJ. Assessment methodologies for extrusion-based bioink printability. Biofabrication 2020; 12:022003. [PMID: 31972558 PMCID: PMC7039534 DOI: 10.1088/1758-5090/ab6f0d] [Citation(s) in RCA: 144] [Impact Index Per Article: 36.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Extrusion-based bioprinting is one of the leading manufacturing techniques for tissue engineering and regenerative medicine. Its primary limitation is the lack of materials, known as bioinks, which are suitable for the bioprinting process. The degree to which a bioink is suitable for bioprinting has been described as its 'printability.' However, a lack of clarity surrounding the methodologies used to evaluate a bioink's printability, as well as the usage of the term itself, have hindered the field. This article presents a review of measures used to assess the printability of extrusion-based bioinks in an attempt to assist researchers during the bioink development process. Many different aspects of printability exist and many different measurements have been proposed as a consequence. Researchers often do not evaluate a new bioink's printability at all, while others simply do so qualitatively. Several quantitative measures have been presented for the extrudability, shape fidelity, and printing accuracy of bioinks. Different measures have been developed even within these aspects, each testing the bioink in a slightly different way. Additionally, other relevant measures which had little or no examples of quantifiable methods are also to be considered. Looking forward, further work is needed to improve upon current assessment methodologies, to move towards a more comprehensive view of printability, and to standardize these printability measurements between researchers. Better assessment techniques will naturally lead to a better understanding of the underlying mechanisms which affect printability and better comparisons between bioinks. This in turn will help improve upon the bioink development process and the bioinks available for use in bioprinting.
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Affiliation(s)
- Gregory Gillispie
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Winston-Salem, North Carolina, USA
- School of Biomedical Engineering and Sciences, Wake Forest University-Virginia Tech, Winston-Salem, North Carolina, USA
| | - Peter Prim
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Winston-Salem, North Carolina, USA
| | - Joshua Copus
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Winston-Salem, North Carolina, USA
- School of Biomedical Engineering and Sciences, Wake Forest University-Virginia Tech, Winston-Salem, North Carolina, USA
| | - John Fisher
- Fischell Department of Bioengineering, University of Maryland, College Park, Maryland, USA
| | - Antonios G. Mikos
- Departments of Bioengineering and Chemical and Biomolecular Engineering, Rice University, Houston, Texas, USA
| | - James J. Yoo
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Winston-Salem, North Carolina, USA
- School of Biomedical Engineering and Sciences, Wake Forest University-Virginia Tech, Winston-Salem, North Carolina, USA
| | - Anthony Atala
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Winston-Salem, North Carolina, USA
- School of Biomedical Engineering and Sciences, Wake Forest University-Virginia Tech, Winston-Salem, North Carolina, USA
| | - Sang Jin Lee
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Winston-Salem, North Carolina, USA
- School of Biomedical Engineering and Sciences, Wake Forest University-Virginia Tech, Winston-Salem, North Carolina, USA
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194
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Gao Q, Xie C, Wang P, Xie M, Li H, Sun A, Fu J, He Y. 3D printed multi-scale scaffolds with ultrafine fibers for providing excellent biocompatibility. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 107:110269. [DOI: 10.1016/j.msec.2019.110269] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2019] [Revised: 09/08/2019] [Accepted: 09/30/2019] [Indexed: 01/10/2023]
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195
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Candelaria JI, Denicol AC. Characterization of isolated bovine preantral follicles based on morphology, diameter and cell number. ZYGOTE 2020; 28:1-6. [PMID: 31933452 DOI: 10.1017/s0967199419000832] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Preantral follicles are a potential reservoir of oocytes to be used in assisted reproductive technologies. With the increasing interest in developing techniques to grow preantral follicles in vitro, and as the bovine emerges as an appropriate model species to understand human folliculogenesis, the establishment of an accurate classification of developmental stages is needed. Classification of bovine preantral follicles has been mostly based on histological analysis and estimation models, which may not translate well to correctly characterize preantral follicles isolated from the ovary. In this study, we classified bovine preantral follicles by morphology upon isolation, determined diameter and number of granulosa cells by direct counting, and compared our results with previous studies reporting bovine preantral follicle classification. Follicles were isolated via homogenization of ovary tissue and classified into primary, early secondary and secondary stage based on morphology and number of layers of granulosa cells. Diameter was individually measured and Hoechst 33342 was used as a nuclear stain to count granulosa cells. We found that follicles classified by morphology into primary, early secondary, and secondary had different mean diameter and cell number (P < 0.01); cell number and diameter were positively correlated, as were cell density and cell number in each developmental stage (P < 0.01). Results obtained here were mostly in agreement with previous classifications based on histological sections and on isolated follicles, with some discrepancies. The present data add accuracy to classification of bovine preantral follicles that is critical to optimize culture conditions to produce developmentally competent oocytes.
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Affiliation(s)
| | - Anna C Denicol
- Department of Animal Science, University of California, Davis, CA, USA
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196
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Laronda MM. Engineering a bioprosthetic ovary for fertility and hormone restoration. Theriogenology 2020; 150:8-14. [PMID: 31973967 DOI: 10.1016/j.theriogenology.2020.01.021] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Accepted: 01/11/2020] [Indexed: 12/14/2022]
Abstract
There has been an increase in childhood cancer survivors over the past few decades, and with this, an increased awareness of the co-morbidities of the treatment or disease that affect the survivor's quality-of-life. The increased rate of infertility among this patient group and the desire to have biological children voiced by childhood cancer survivors underscores the urgent need for fertility preservation and development of techniques to restore fertility and gonadal hormone function for this population. The ovarian tissue contains a finite source of female gametes that can be transplanted to restore ovarian function and has resulted in over one hundred reported live births. However, the success of biological offspring per ovarian tissue transplant, the reduced lifespan of these transplants, and the potential for these tissues to contain cancer cells from patients with metastatic diseases supports the need for improved options. One innovation that could improve ovarian transplantation is the development of a bioprosthetic ovary comprised of a 3D printed scaffold with isolated ovarian follicles. A murine bioprosthetic ovary restored ovarian hormones in ovariectomized mice, which also gave birth to healthy offspring. Research is ongoing to create the next iteration of the scaffold that would support ovarian follicles from large animal models and humans with the hopes of translating this technology for patients.
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Affiliation(s)
- Monica M Laronda
- Department of Endocrinology, Department of Surgery and Stanley Manne Children's Research Institute, Ann & Robert H. Lurie Children's Hospital of Chicago, Department of Pediatrics, Feinberg School of Medicine, Northwestern University, USA.
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197
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Kim J, McKee JA, Fontenot JJ, Jung JP. Engineering Tissue Fabrication With Machine Intelligence: Generating a Blueprint for Regeneration. Front Bioeng Biotechnol 2020; 7:443. [PMID: 31998708 PMCID: PMC6967031 DOI: 10.3389/fbioe.2019.00443] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Accepted: 12/11/2019] [Indexed: 01/06/2023] Open
Abstract
Regenerating lost or damaged tissue is the primary goal of Tissue Engineering. 3D bioprinting technologies have been widely applied in many research areas of tissue regeneration and disease modeling with unprecedented spatial resolution and tissue-like complexity. However, the extraction of tissue architecture and the generation of high-resolution blueprints are challenging tasks for tissue regeneration. Traditionally, such spatial information is obtained from a collection of microscopic images and then combined together to visualize regions of interest. To fabricate such engineered tissues, rendered microscopic images are transformed to code to inform a 3D bioprinting process. If this process is augmented with data-driven approaches and streamlined with machine intelligence, identification of an optimal blueprint can become an achievable task for functional tissue regeneration. In this review, our perspective is guided by an emerging paradigm to generate a blueprint for regeneration with machine intelligence. First, we reviewed recent articles with respect to our perspective for machine intelligence-driven information retrieval and fabrication. After briefly introducing recent trends in information retrieval methods from publicly available data, our discussion is focused on recent works that use machine intelligence to discover tissue architectures from imaging and spectral data. Then, our focus is on utilizing optimization approaches to increase print fidelity and enhance biomimicry with machine learning (ML) strategies to acquire a blueprint ready for 3D bioprinting.
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Affiliation(s)
- Joohyun Kim
- Center for Computation and Technology, Louisiana State University, Baton Rouge, LA, United States
| | - Jane A. McKee
- Department of Biological Engineering, Louisiana State University, Baton Rouge, LA, United States
| | - Jake J. Fontenot
- Department of Biological Engineering, Louisiana State University, Baton Rouge, LA, United States
| | - Jangwook P. Jung
- Department of Biological Engineering, Louisiana State University, Baton Rouge, LA, United States
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198
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Shen P, Xu J, Wang P, Zhao X, Huang B, Wu F, Wang L, Chen W, Feng Y, Guo Z, Liu X, Deng Y, Jiang J, Shi D, Lu F. A new three-dimensional glass scaffold increases the in vitro maturation efficiency of buffalo (Bubalus bubalis) oocyte via remodelling the extracellular matrix and cell connection of cumulus cells. Reprod Domest Anim 2020; 55:170-180. [PMID: 31816136 DOI: 10.1111/rda.13602] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2019] [Accepted: 12/02/2019] [Indexed: 12/18/2022]
Abstract
At present, many three-dimensional (3D) culture systems have been reported, improving the oocyte quality of in vitro maturation (IVM), yet the mechanism still needs to be further explored. Here we examined the effects of a new self-made 3D glass scaffold on buffalo oocyte maturation; meanwhile, the underlying mechanism on buffalo oocyte maturation was also detected. Compared to the two-dimensional (2D) glass dish culture, results revealed that the 3D culture can improve the first polar body rate of oocytes, subsequent cleavage and blastocysts rate of parthenogenetic activation embryos (p < .05). The extracellular matrix-related proteins COL1A1, COL2A1, COL3A1, FN and cell connection-related proteins N-cadherin, E-cadherin, GJA1 were found higher in cumulus cells of 3D culture. Moreover, in cumulus cells, proteins of the PI3K/AKT pathway reported being regulated by FN and E-cadherin including PI3K P85 and p-AKT were also higher in 3D culture. Furthermore, proapoptosis proteins P53, BAX, caspase-3 were lower in both cumulus cells and oocytes in 3D culture, while proteins PCNA and BCL2 showed the opposite result. Results also showed that the apoptosis was inhibited, and the proliferation was enhanced in cumulus cells of 3D culture. Finally, the cumulus expansion-related genes HAS2, CD44, HMMR, PTX3, PTGS2 were found higher in cumulus cells of 3D culture. Taken together, the 3D culture could promote oocyte maturation by regulating proteins correlated with the ECM, cell connection and PI3K/AKT pathway, inhibiting the apoptosis of cumulus cells and oocytes, enhancing the proliferation of cumulus cells and the cumulus expansion.
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Affiliation(s)
- Penglei Shen
- Animal Reproduction Institute, State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi University, Nanning, China
| | - Jie Xu
- Animal Reproduction Institute, State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi University, Nanning, China
| | - Ping Wang
- Animal Reproduction Institute, State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi University, Nanning, China
| | - Xin Zhao
- Animal Reproduction Institute, State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi University, Nanning, China
| | - Ben Huang
- Animal Reproduction Institute, State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi University, Nanning, China
| | - Fei Wu
- Animal Reproduction Institute, State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi University, Nanning, China
| | - Lulu Wang
- Animal Reproduction Institute, State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi University, Nanning, China
| | - Weili Chen
- Animal Reproduction Institute, State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi University, Nanning, China
| | - Yun Feng
- Animal Reproduction Institute, State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi University, Nanning, China
| | - Zhenwei Guo
- Animal Reproduction Institute, State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi University, Nanning, China
| | - Xiaohua Liu
- Animal Reproduction Institute, State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi University, Nanning, China
| | - Yanfei Deng
- Animal Reproduction Institute, State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi University, Nanning, China
| | - Jianrong Jiang
- Animal Reproduction Institute, State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi University, Nanning, China
| | - Deshun Shi
- Animal Reproduction Institute, State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi University, Nanning, China
| | - Fenghua Lu
- Animal Reproduction Institute, State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi University, Nanning, China
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199
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Yang Q, Zhu L, Jin L. Human Follicle in vitro Culture Including Activation, Growth, and Maturation: A Review of Research Progress. Front Endocrinol (Lausanne) 2020; 11:548. [PMID: 32849312 PMCID: PMC7431469 DOI: 10.3389/fendo.2020.00548] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Accepted: 07/06/2020] [Indexed: 01/23/2023] Open
Abstract
Fertility preservation has received unprecedented attention nowadays. In addition to cryopreservation and re-implantation of embryos, oocytes, and ovarian tissue pieces, in vitro culture system for follicles/oocytes has been considered as an alternative strategy for fertility preservation. Since the metabolic dynamics and required nutrients are not entirely the same in different stages of follicular development, optimization of each culture step is needed. In this paper, literature regarding culture conditions in three steps were analyzed. Known additives in activation stage included 740Y-P, bpV(HOpic), follicle stimulating hormone (FSH), human serum albumin (HSA), ITS, growth differentiation factor 9 (GDF9), bone morphogenetic protein 15 (BMP15), and cyclic adenosine monophosphate (cAMP), with different degrees of activation promotion and potential detrimental effect on DNA integrity. For isolated follicles growth stage, actin A, FSH, basic fibroblast growth factor (bFGF), estradiol were proved to improve development or proliferation. As for maturation, addition of growth hormone, melatonin, C-type natriuretic peptide (CNP), GDF9, cilostamide, or forskolin helped to regulate maturation rate or improve oocyte quality. Based on previous sequential culture system for human follicles, optimization is needed to achieve higher maturation rate and better oocyte quality, pursuant to current review, which demonstrated the effects of various additives on different stages.
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200
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Henning NF, LeDuc RD, Even KA, Laronda MM. Proteomic analyses of decellularized porcine ovaries identified new matrisome proteins and spatial differences across and within ovarian compartments. Sci Rep 2019; 9:20001. [PMID: 31882863 PMCID: PMC6934504 DOI: 10.1038/s41598-019-56454-3] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2019] [Accepted: 12/12/2019] [Indexed: 12/14/2022] Open
Abstract
Premature ovarian insufficiency (POI) affects approximately 1% of women. We aim to understand the ovarian microenvironment, including the extracellular matrix (ECM) and associated proteins (matrisome), and its role in controlling folliculogenesis. We mapped the composition of the matrisome of porcine ovaries through the cortical compartment, where quiescent follicles reside and the medullary compartment, where the larger follicles grow and mature. To do this we sliced the ovaries, uniformly in two anatomical planes, enriched for matrisome proteins and performed bottom-up shotgun proteomic analyses. We identified 42 matrisome proteins that were significantly differentially expressed across depths, and 11 matrisome proteins that have not been identified in previous ovarian protein analyses. We validated these data for nine proteins and confirmed compartmental differences with a second processing method. Here we describe a processing and proteomic analysis pipeline that revealed spatial differences and matrisome protein candidates that may influence folliculogenesis.
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Affiliation(s)
- Nathaniel F Henning
- Department of Pediatrics, Feinberg School of Medicine, Northwestern University, Chicago, USA
- Stanley Manne Children's Research Institute, Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, USA
| | - Richard D LeDuc
- Proteomics Center of Excellence, Northwestern University, Evanston, USA
| | - Kelly A Even
- Department of Pediatrics, Feinberg School of Medicine, Northwestern University, Chicago, USA
- Stanley Manne Children's Research Institute, Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, USA
| | - Monica M Laronda
- Department of Pediatrics, Feinberg School of Medicine, Northwestern University, Chicago, USA.
- Stanley Manne Children's Research Institute, Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, USA.
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