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McClain AK, Monteleone PP, Zoldan J. Sex in cardiovascular disease: Why this biological variable should be considered in in vitro models. SCIENCE ADVANCES 2024; 10:eadn3510. [PMID: 38728407 PMCID: PMC11086622 DOI: 10.1126/sciadv.adn3510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Accepted: 04/09/2024] [Indexed: 05/12/2024]
Abstract
Cardiovascular disease (CVD), the world's leading cause of death, exhibits notable epidemiological, clinical, and pathophysiological differences between sexes. Many such differences can be linked back to cardiovascular sexual dimorphism, yet sex-specific in vitro models are still not the norm. A lack of sex reporting and apparent male bias raises the question of whether in vitro CVD models faithfully recapitulate the biology of intended treatment recipients. To ensure equitable treatment for the overlooked female patient population, sex as a biological variable (SABV) inclusion must become commonplace in CVD preclinical research. Here, we discuss the role of sex in CVD and underlying cardiovascular (patho)physiology. We review shortcomings in current SABV practices, describe the relevance of sex, and highlight emerging strategies for SABV inclusion in three major in vitro model types: primary cell, stem cell, and three-dimensional models. Last, we identify key barriers to inclusive design and suggest techniques for overcoming them.
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Affiliation(s)
- Anna K. McClain
- Department of Biomedical Engineering, The University of Texas at Austin, Austin, TX 78751, USA
| | - Peter P. Monteleone
- Ascension Texas Cardiovascular, Austin, TX 78705, USA
- Dell School of Medicine, The University of Texas at Austin, Austin, TX 78712, USA
| | - Janet Zoldan
- Department of Biomedical Engineering, The University of Texas at Austin, Austin, TX 78751, USA
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2
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Zou H, Wang R, Morbeck DE. Diagnostic or prognostic? Decoding the role of embryo selection on in vitro fertilization treatment outcomes. Fertil Steril 2024; 121:730-736. [PMID: 38185198 DOI: 10.1016/j.fertnstert.2024.01.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Revised: 12/22/2023] [Accepted: 01/03/2024] [Indexed: 01/09/2024]
Abstract
In this review, we take a fresh look at embryo assessment and selection methods from the perspective of diagnosis and prognosis. On the basis of a systematic search in the literature, we examined the evidence on the prognostic value of different embryo assessment methods, including morphological assessment, blastocyst culture, time-lapse imaging, artificial intelligence, and preimplantation genetic testing for aneuploidy.
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Affiliation(s)
- Haowen Zou
- Department of Obstetrics and Gynaecology, Monash University, Melbourne, Victoria, Australia
| | - Rui Wang
- Department of Obstetrics and Gynaecology, Monash University, Melbourne, Victoria, Australia
| | - Dean E Morbeck
- Department of Obstetrics and Gynaecology, Monash University, Melbourne, Victoria, Australia; Principle, Morbeck Consulting Ltd, Auckland, New Zealand.
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3
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Mashiko D, Tokoro M, Kojima M, Fukunaga N, Asada Y, Yamagata K. Search for morphological indicators that predict implantation by principal component analysis using images of blastocyst. PeerJ 2022; 10:e13441. [PMID: 35602891 PMCID: PMC9119295 DOI: 10.7717/peerj.13441] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Accepted: 04/25/2022] [Indexed: 01/14/2023] Open
Abstract
Background Although the current evaluation of human blastocysts is based on the Gardner criteria, there may be other notable parameters. The purpose of our study was to clarify whether the morphology of blastocysts has notable indicators other than the Gardner criteria. Methods To find such indicators, we compared blastocysts that showed elevated human chorionic gonadotropin (hCG) levels after transplantation (hCG-positive group; n = 129) and those that did not (hCG-negative group; n = 105) using principal component analysis of pixel brightness of the images. Results The comparison revealed that the hCG-positive group had grainy morphology and the hCG-negative group had non-grainy morphology. Classification of the blastocysts by this indicator did not make a difference in Gardner score. Interestingly, all embryos with ≥20% fragmentation were non-grainy. The visual classification based on this analysis was significantly more accurate than the prediction of implantation using the Gardner score ≥3BB. As graininess can be used in combination with the Gardner score, this indicator will enhance current reproductive technologies.
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Affiliation(s)
- Daisuke Mashiko
- Graduate School of Biology-Oriented Science and Technology, Kindai University, Kinokawa, Wakayama, Japan
| | - Mikiko Tokoro
- Graduate School of Biology-Oriented Science and Technology, Kindai University, Kinokawa, Wakayama, Japan,Asada Institute for Reproductive Medicine, Asada Ladies Clinic, Nagoya, Aichi, Japan
| | - Masae Kojima
- Asada Institute for Reproductive Medicine, Asada Ladies Clinic, Nagoya, Aichi, Japan
| | - Noritaka Fukunaga
- Asada Institute for Reproductive Medicine, Asada Ladies Clinic, Nagoya, Aichi, Japan
| | - Yoshimasa Asada
- Asada Institute for Reproductive Medicine, Asada Ladies Clinic, Nagoya, Aichi, Japan
| | - Kazuo Yamagata
- Graduate School of Biology-Oriented Science and Technology, Kindai University, Kinokawa, Wakayama, Japan
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4
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Liu C, Li L, Wang M, Shui S, Yao H, Sui C, Zhang H. Endometrial extracellular vesicles of recurrent implantation failure patients inhibit the proliferation, migration, and invasion of HTR8/SVneo cells. J Assist Reprod Genet 2021; 38:825-833. [PMID: 33521905 PMCID: PMC8079592 DOI: 10.1007/s10815-021-02093-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Accepted: 01/27/2021] [Indexed: 01/03/2023] Open
Abstract
PURPOSE Endometrial extracellular vesicles are essential in regulating trophoblasts' function. This study aims to investigate whether endometrial extracellular vesicles (EVs) from recurrent implantation failure (RIF) patients inhibit the proliferation, invasion, and migration of HTR8/SVneo cells. METHODS Eighteen RIF patients and thirteen fertile women were recruited for endometria collection. Endometrial cells isolated from the endometria were cultured and modulated by hormones, and the conditioned medium was used for EV isolation. EVs secreted by the endometrial cells of RIF patients (RIF-EVs) or fertile women (FER-EVs) were determined by Western blotting, nanoparticle tracking analysis, and transmission electron microscopy. Fluorescence-labeled EVs were used to visualize internalization by HTR8/SVneo cells. RIF-EVs and FER-EVs were co-cultured with HTR8/SVneo cells. Cell Counting Kit-8, transwell invasion, and wound closure assays were performed to determine cellular proliferation, invasion, and migration, respectively, in different treatments. RESULTS RIF-EVs and FER-EVs were bilayer membrane vesicles, ranging from 100 to 150 nm in size, that expressed the classic EV markers Alix and CD9. RIF-EVs and FER-EVs were internalized by HTR8/SVneo cells within 2 h. The proliferation rate in the FER-EV group was significantly higher than that in the RIF-EV group at 20 μg/mL. Moreover, the invasion and migration capacity of trophoblast cells were decreased in the RIF-EV group relative to the FER-EV group at 20 μg/mL. CONCLUSION Endometrial EVs from RIF patients inhibited the functions of trophoblasts by decreasing their proliferation, migration, and invasive capacity. Such dysregulations induced by RIF-EVs may provide novel insights for better understanding the pathogenesis of implantation failure.
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Affiliation(s)
- Chang Liu
- Reproductive Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Jiefang Avenue 1095#, Wuhan, 430030, People's Republic of China
| | - Linshuang Li
- Reproductive Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Jiefang Avenue 1095#, Wuhan, 430030, People's Republic of China
| | - Meng Wang
- Reproductive Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Jiefang Avenue 1095#, Wuhan, 430030, People's Republic of China
| | - Shike Shui
- Reproductive Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Jiefang Avenue 1095#, Wuhan, 430030, People's Republic of China
| | - Haixia Yao
- Reproductive Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Jiefang Avenue 1095#, Wuhan, 430030, People's Republic of China
| | - Cong Sui
- Reproductive Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Jiefang Avenue 1095#, Wuhan, 430030, People's Republic of China
| | - Hanwang Zhang
- Reproductive Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Jiefang Avenue 1095#, Wuhan, 430030, People's Republic of China.
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5
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Altered microRNA Profiles of Extracellular Vesicles Secreted by Endometrial Cells from Women with Recurrent Implantation Failure. Reprod Sci 2021; 28:1945-1955. [PMID: 33432533 DOI: 10.1007/s43032-020-00440-y] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Accepted: 12/14/2020] [Indexed: 12/13/2022]
Abstract
Recurrent implantation failure (RIF) is characterized by repeated embryo transfers without pregnancy. To date, the etiology of RIF remains poorly understood. Accumulating evidence indicates a beneficial role of endometrial extracellular vesicles (EVs) during the implantation by delivering signaling molecules to embryos, especially miRNAs. However, whether EVs secreted by RIF patients' endometria have a similar miRNA expression profile of endometrial EVs of fertile women has not been investigated. Therefore, in this study, we compared the miRNA expression profiles between the endometrial EVs of RIF patients (RIF-EVs) and fertile women (FER-EVs). Endometrial tissues from fifteen RIF patients and nine fertile women were collected and digested to cells for culture. Endometrial cells were modulated by estrogen and progesterone to mimic the secretory phase, and the conditioned medium was collected for EV isolation. EVs were determined by western blotting, nanoparticle tracking analysis, and transmission electronic microscopy (TEM). Three pairs of EV samples from two groups were used for miRNA sequencing, and twelve RIF-EV samples and six FER-EV samples were used for validation using quantitative reverse transcription polymerase chain reaction (qRT-PCR). Results showed that a total of 11 miRNAs were differently expressed in the RIF-EVs. Besides, four of the differently expressed miRNAs were validated using qRT-PCR. Target genes of the differently expressed miRNAs were predicted, and the functional analysis was performed. Besides, we proved that the most significantly different miRNA, 6131, inhibited the growth and invasion of HTR8/SVneo cells. Our study suggested that the altered miRNAs in the RIF-EVs might be involved in the pathogenesis of RIF.
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6
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Capra E, Lange-Consiglio A. The Biological Function of Extracellular Vesicles during Fertilization, Early Embryo-Maternal Crosstalk and Their Involvement in Reproduction: Review and Overview. Biomolecules 2020; 10:E1510. [PMID: 33158009 PMCID: PMC7693816 DOI: 10.3390/biom10111510] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Revised: 10/29/2020] [Accepted: 10/31/2020] [Indexed: 12/18/2022] Open
Abstract
Secretory extracellular vesicles (EVs) are membrane-enclosed microparticles that mediate cell to cell communication in proximity to, or distant from, the cell of origin. Cells release a heterogeneous spectrum of EVs depending on their physiologic and metabolic state. Extracellular vesicles are generally classified as either exosomes or microvesicles depending on their size and biogenesis. Extracellular vesicles mediate temporal and spatial interaction during many events in sexual reproduction and supporting embryo-maternal dialogue. Although many omic technologies provide detailed understanding of the molecular cargo of EVs, the difficulty in obtaining populations of homogeneous EVs makes difficult to interpret the molecular profile of the molecules derived from a miscellaneous EV population. Notwithstanding, molecular characterization of EVs isolated in physiological and pathological conditions may increase our understanding of reproductive and obstetric diseases and assist the search for potential non-invasive biomarkers. Moreover, a more precise vision of the cocktail of biomolecules inside the EVs mediating communication between the embryo and mother could provide new insights to optimize the therapeutic action and safety of EV use.
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Affiliation(s)
- Emanuele Capra
- Istituto di Biologia e Biotecnologia Agraria, Consiglio Nazionale delle Ricerche IBBA CNR, 26900 Lodi, Italy;
| | - Anna Lange-Consiglio
- Dipartimento di Medicina Veterinaria, Università degli Studi di Milano, 26900 Lodi, Italy
- Centro Clinico-Veterinario e Zootecnico-Sperimentale di Ateneo, Università degli Studi di Milano, 26900 Lodi, Italy
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7
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Berntsen S, Hare KJ, Løssl K, Bogstad J, Palmø J, Prætorius L, Zedeler A, Pinborg A. Endometrial scratch injury with office hysteroscopy before IVF/ICSI: A randomised controlled trial. Eur J Obstet Gynecol Reprod Biol 2020; 252:112-117. [PMID: 32593936 DOI: 10.1016/j.ejogrb.2020.06.034] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Revised: 06/08/2020] [Accepted: 06/15/2020] [Indexed: 01/31/2023]
Abstract
OBJECTIVE Endometrial scratch injury (ESI) has been proposed to improve endometrial receptivity and thereby increase implantation rates in assisted reproductive technology (ART) treatment. ESI has been widely incorporated into clinical practice despite inconclusive evidence of its effect on reproductive outcomes. We aimed to assess pregnancy and live birth rates in subfertile women receiving ESI before IVF treatment in comparison to controls. STUDY DESIGN This was a randomised controlled trial (RCT) with no blinding of participants, investigators or health care personnel. Women in ART treatment were allocated to either office hysteroscopy with ESI (ESI group) or no intervention (control group). In total 184 women in IVF/ICSI treatment with minimum one previous failed IVF/ICSI cycle, were included in the final analysis. The primary outcome was positive serum hCG (s-hCG). Secondary outcomes were ongoing pregnancy and live birth rate. Only per-protocol analyses were performed as all patients included at one centre had to be excluded. The trial is registered at ClinicalTrials.gov, NCT01743391. RESULTS Our results showed a non-significant increase in positive s-hCG (OR 1.23, 95 % CI (0.65-2.33)), ongoing pregnancy (OR 1.52, 95 % CI (0.73-3.17)), and live birth rates (OR 1.69, 95 % CI (0.78-3.64)) per randomised woman between the ESI and the control group. CONCLUSION We observed no significant differences in positive s-hCG or other reproductive outcomes in the ESI vs. the control group. While the crude estimates of positive reproductive outcomes were higher in the ESI group, statistical significance was not reached, and the study was not powered to show smaller differences. However, data from this study will be re-evaluated in the context of an individual participant data meta-analysis (IPD-MA) of RCTs on ESI.
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Affiliation(s)
- Sine Berntsen
- Department of Obstetrics and Gynaecology, Hvidovre Hospital, Copenhagen University Hospital, Kettegaard Allé 30, 2650, Hvidovre, Denmark; The Fertility Clinic, Hvidovre Hospital, Copenhagen University Hospital, Kettegaard Allé 30, 2650, Hvidovre, Denmark.
| | - Kristine Juul Hare
- Department of Obstetrics and Gynaecology, Hvidovre Hospital, Copenhagen University Hospital, Kettegaard Allé 30, 2650, Hvidovre, Denmark
| | - Kristine Løssl
- The Fertility Clinic, Hvidovre Hospital, Copenhagen University Hospital, Kettegaard Allé 30, 2650, Hvidovre, Denmark; The Fertility Clinic, Rigshospitalet, Copenhagen University Hospital, Blegdamsvej 9, 2100 Copenhagen, Denmark
| | - Jeanette Bogstad
- The Fertility Clinic, Hvidovre Hospital, Copenhagen University Hospital, Kettegaard Allé 30, 2650, Hvidovre, Denmark; The Fertility Clinic, Rigshospitalet, Copenhagen University Hospital, Blegdamsvej 9, 2100 Copenhagen, Denmark
| | - Jan Palmø
- Department of Obstetrics and Gynaecology, Holbaek Hospital, Smedelundsgade 60, 4300 Holbaek, Denmark
| | - Lisbeth Prætorius
- The Fertility Clinic, Hvidovre Hospital, Copenhagen University Hospital, Kettegaard Allé 30, 2650, Hvidovre, Denmark
| | - Anne Zedeler
- The Fertility Clinic, Hvidovre Hospital, Copenhagen University Hospital, Kettegaard Allé 30, 2650, Hvidovre, Denmark
| | - Anja Pinborg
- The Fertility Clinic, Hvidovre Hospital, Copenhagen University Hospital, Kettegaard Allé 30, 2650, Hvidovre, Denmark; The Fertility Clinic, Rigshospitalet, Copenhagen University Hospital, Blegdamsvej 9, 2100 Copenhagen, Denmark
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8
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Pre- and peri-implantation Zika virus infection impairs fetal development by targeting trophectoderm cells. Nat Commun 2019; 10:4155. [PMID: 31519912 PMCID: PMC6744420 DOI: 10.1038/s41467-019-12063-2] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2018] [Accepted: 08/19/2019] [Indexed: 12/23/2022] Open
Abstract
Zika virus (ZIKV) infection results in an increased risk of spontaneous abortion and poor intrauterine growth although the underlying mechanisms remain undetermined. Little is known about the impact of ZIKV infection during the earliest stages of pregnancy, at pre- and peri-implantation, because most current ZIKV pregnancy studies have focused on post-implantation stages. Here, we demonstrate that trophectoderm cells of pre-implantation human and mouse embryos can be infected with ZIKV, and propagate virus causing neural progenitor cell death. These findings are corroborated by the dose-dependent nature of ZIKV susceptibility of hESC-derived trophectoderm cells. Single blastocyst RNA-seq reveals key transcriptional changes upon ZIKV infection, including nervous system development, prior to commitment to the neural lineage. The pregnancy rate of mice is >50% lower in pre-implantation infection than infection at E4.5, demonstrating that pre-implantation ZIKV infection leads to miscarriage. Cumulatively, these data elucidate a previously unappreciated association of pre- and peri-implantation ZIKV infection and microcephaly.
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9
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Battaglia R, Palini S, Vento ME, La Ferlita A, Lo Faro MJ, Caroppo E, Borzì P, Falzone L, Barbagallo D, Ragusa M, Scalia M, D'Amato G, Scollo P, Musumeci P, Purrello M, Gravotta E, Di Pietro C. Identification of extracellular vesicles and characterization of miRNA expression profiles in human blastocoel fluid. Sci Rep 2019; 9:84. [PMID: 30643155 PMCID: PMC6331601 DOI: 10.1038/s41598-018-36452-7] [Citation(s) in RCA: 80] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2018] [Accepted: 11/19/2018] [Indexed: 12/15/2022] Open
Abstract
In this study, for the first time, we demonstrated the presence of microRNAs and extracellular vesicles in human blastocoel fluid. The bioinformatic and comparative analyses identified the biological function of blastocoel fluid microRNAs and suggested a potential role inside the human blastocyst. We found 89 microRNAs, expressed at different levels, able to regulate critical signaling pathways controlling embryo development, such as pluripotency, cell reprogramming, epigenetic modifications, intercellular communication, cell adhesion and cell fate. Blastocoel fluid microRNAs reflect the miRNome of embryonic cells and their presence, associated with the discovery of extracellular vesicles, inside blastocoel fluid, strongly suggests their important role in mediating cell communication among blastocyst cells. Their characterization is important to better understand the earliest stages of embryogenesis and the complex circuits regulating pluripotency. Moreover, blastocoel fluid microRNA profiles could be influenced by blastocyst quality, therefore, microRNAs might be used to assess embryo potential in IVF cycles.
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Affiliation(s)
- R Battaglia
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, Italy
| | - S Palini
- Reproductive and IVF Unit- PTA "F Jaia", Department of Maternal and Child Health, Conversano, Italy.,IVF Unit Cervesi Hospital Cattolica, Cattolica, RN, Italy
| | - M E Vento
- IVF Unit, Cannizzaro Hospital, Catania, Italy
| | - A La Ferlita
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, Italy.,Dipartimento di Fisica e Astronomia, Università di Catania, Catania, Italy
| | - M J Lo Faro
- Dipartimento di Fisica e Astronomia, Università di Catania, Catania, Italy.,IPCF-CNR, viale F. Stagno d'Alcontres 37, 98158, Messina, Italy
| | - E Caroppo
- Reproductive and IVF Unit- PTA "F Jaia", Department of Maternal and Child Health, Conversano, Italy
| | - P Borzì
- IVF Unit, Cannizzaro Hospital, Catania, Italy
| | - L Falzone
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, Italy
| | - D Barbagallo
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, Italy
| | - M Ragusa
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, Italy.,Oasi Research Institute - IRCCS, Troina, Italy
| | - M Scalia
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, Italy
| | - G D'Amato
- Reproductive and IVF Unit- PTA "F Jaia", Department of Maternal and Child Health, Conversano, Italy
| | - P Scollo
- IVF Unit, Cannizzaro Hospital, Catania, Italy
| | - P Musumeci
- Dipartimento di Fisica e Astronomia, Università di Catania, Catania, Italy
| | - M Purrello
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, Italy
| | - E Gravotta
- Merck Serono s.p.a. Medical Affairs Department, Fertility, Endocrinology and General Medicine, Roma, Italy
| | - C Di Pietro
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, Italy.
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10
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Montskó G, Gödöny K, Herczeg R, Várnagy Á, Bódis J, Kovács GL. Alpha-1 chain of human haptoglobin as viability marker of in vitro fertilized human embryos: information beyond morphology. Syst Biol Reprod Med 2018; 65:174-180. [PMID: 30222008 DOI: 10.1080/19396368.2018.1518499] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
Only one third of the in vitro fertilization treatments result in successful delivery following morphological viability assessment worldwide. A paper by Montskó et al. (2015) describes the identification of the alpha-1 chain of human haptoglobin as a potential marker of embryo viability. Using mass spectrometry, the concentration of the haptoglobin alpha-1 chain was determined in spent culture media samples of in vitro fertilized embryos and correlation was found with the outcome of the respective transfer. In the present study we investigated, whether the concentration of haptoglobin alpha-1 chain shows any correlation with morphological scores to clarify whether levels of the alpha-1 chain provide additional information on embryo viability unnoticed by the morphological assessment. In the study, pregnancy and live birth rates were examined in 143 transferred samples of 86 patients, retrospectively. Two sample groups were created. The control group contained embryos classified as 'good' or 'fair' based on the Istanbul Consensus Criteria System, while the double-assay group contained embryos assessed as 'good' or 'fair' by the morphological evaluation and as 'viable' by the haptoglobin assay. Clinical pregnancy rate was 30.2% in the control group, while 47.6% in the group scored parallel with morphological criteria and proteomic analysis (p < 0.05). The increased clinical pregnancy rate observed in the double-assayed group can be attributed to decreased false-positivity of the double assay. Abbreviations: IVF: in vitro fertilization; SEC: spent embryo culture medium; HSA: human serum albumin; Hpt: haptoglobin; HptA1: haptoglobin alpha-1 chain; ICCS: Istanbul Consensus Criteria System; BMI: body mass index; ICSI: intracytoplasmic sperm injection.
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Affiliation(s)
- Gergely Montskó
- a Szentágothai Research Centre , University of Pécs , Pécs , Hungary.,b MTA-PTE Human Reproduction Scientific Research Group , University of Pécs , Pécs , Hungary
| | - Krisztina Gödöny
- b MTA-PTE Human Reproduction Scientific Research Group , University of Pécs , Pécs , Hungary.,c Department of Obstetrics and Gynecology , University of Pécs , Pécs , Hungary
| | - Róbert Herczeg
- a Szentágothai Research Centre , University of Pécs , Pécs , Hungary
| | - Ákos Várnagy
- b MTA-PTE Human Reproduction Scientific Research Group , University of Pécs , Pécs , Hungary.,c Department of Obstetrics and Gynecology , University of Pécs , Pécs , Hungary
| | - József Bódis
- b MTA-PTE Human Reproduction Scientific Research Group , University of Pécs , Pécs , Hungary.,c Department of Obstetrics and Gynecology , University of Pécs , Pécs , Hungary
| | - Gábor L Kovács
- a Szentágothai Research Centre , University of Pécs , Pécs , Hungary.,b MTA-PTE Human Reproduction Scientific Research Group , University of Pécs , Pécs , Hungary.,d Department of Laboratory Medicine, Faculty of Medicine , University of Pécs , Pécs , Hungary
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11
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Sevilla A, Forero E, Zimmer M, Martinez H, Reggio K, Paull D, Egli D, Noggle S. Derivation and characterization of the NIH registry human stem cell line NYSCF101 under defined feeder-free conditions. Stem Cell Res 2018; 29:197-201. [PMID: 29730569 DOI: 10.1016/j.scr.2018.04.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/02/2018] [Revised: 04/26/2018] [Accepted: 04/27/2018] [Indexed: 12/01/2022] Open
Abstract
The human embryonic stem cell line NYSCFe002-A was derived from a day 6 blastocyst in feeder-free and antibiotic free conditions. The blastocyst was voluntarily donated for research as surplus after in vitro fertilization treatment following informed consent. The NYSCFe002-A line expresses all the pluripotency markers and has the potential to differentiate into all three germ layers in vitro. The line presents normal karyotype and is mycoplasma free. This line is registered as NYSCF101 on the NIH Registry.
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Affiliation(s)
- Ana Sevilla
- The New York Stem Cell Foundation Research Institute, New York, NY 10019, United States.
| | - Eliana Forero
- The New York Stem Cell Foundation Research Institute, New York, NY 10019, United States
| | - Matthew Zimmer
- The New York Stem Cell Foundation Research Institute, New York, NY 10019, United States
| | - Hector Martinez
- The New York Stem Cell Foundation Research Institute, New York, NY 10019, United States
| | - Katie Reggio
- The New York Stem Cell Foundation Research Institute, New York, NY 10019, United States
| | - Daniel Paull
- The New York Stem Cell Foundation Research Institute, New York, NY 10019, United States
| | - Dieter Egli
- The New York Stem Cell Foundation Research Institute, New York, NY 10019, United States
| | - Scott Noggle
- The New York Stem Cell Foundation Research Institute, New York, NY 10019, United States
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12
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Derivation and characterization of the NIH registry human stem cell line NYSCF100 line under defined feeder-free conditions. Stem Cell Res 2018; 29:99-102. [PMID: 29631040 DOI: 10.1016/j.scr.2018.03.017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/24/2018] [Revised: 03/21/2018] [Accepted: 03/29/2018] [Indexed: 11/22/2022] Open
Abstract
The human embryonic stem cell line NYSCFe001-A was derived from a day 6 blastocyst in feeder-free and antibiotic free conditions. The blastocyst was voluntarily donated for research as surplus after in vitro fertilization treatment following informed consent. The NYSCFe001-A line, registered as NYSCF100 on the NIH registry, presents normal karyotype, is mycoplasma free, expresses all the pluripotency markers and has the potential to differentiate into all three germ layers in vitro.
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13
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Sevilla A, Forero E, Zimmer M, Martinez H, Reggio K, Paull D, Egli D, Noggle S. Derivation and characterization of the NYSCFe003-A human embryonic stem cell line. Stem Cell Res 2017; 25:217-220. [PMID: 29161648 DOI: 10.1016/j.scr.2017.10.017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/23/2017] [Revised: 10/04/2017] [Accepted: 10/26/2017] [Indexed: 02/02/2023] Open
Abstract
The human embryonic stem cell line NYSCFe003-A was derived from a day 5 to day 6 blastocyst in feeder-free and antibiotic free conditions. The blastocyst was voluntarily donated for research as surplus after in vitro fertilization treatment following informed consent. The NYSCFe003-A line expresses all the pluripotency markers and has the potential to differentiate into all three germ layers in vitro. The line presents normal karyotype and is mycoplasma free.
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Affiliation(s)
- Ana Sevilla
- The New York Stem Cell Foundation Research Institute, NY 10019, New York, United States.
| | - Eliana Forero
- The New York Stem Cell Foundation Research Institute, NY 10019, New York, United States
| | - Matthew Zimmer
- The New York Stem Cell Foundation Research Institute, NY 10019, New York, United States
| | - Hector Martinez
- The New York Stem Cell Foundation Research Institute, NY 10019, New York, United States
| | - Katie Reggio
- The New York Stem Cell Foundation Research Institute, NY 10019, New York, United States
| | - Daniel Paull
- The New York Stem Cell Foundation Research Institute, NY 10019, New York, United States
| | - Dieter Egli
- The New York Stem Cell Foundation Research Institute, NY 10019, New York, United States
| | - Scott Noggle
- The New York Stem Cell Foundation Research Institute, NY 10019, New York, United States
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14
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Hyslop LA, Blakeley P, Craven L, Richardson J, Fogarty NME, Fragouli E, Lamb M, Wamaitha SE, Prathalingam N, Zhang Q, O'Keefe H, Takeda Y, Arizzi L, Alfarawati S, Tuppen HA, Irving L, Kalleas D, Choudhary M, Wells D, Murdoch AP, Turnbull DM, Niakan KK, Herbert M. Towards clinical application of pronuclear transfer to prevent mitochondrial DNA disease. Nature 2016; 534:383-6. [PMID: 27281217 PMCID: PMC5131843 DOI: 10.1038/nature18303] [Citation(s) in RCA: 215] [Impact Index Per Article: 23.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2015] [Accepted: 05/03/2016] [Indexed: 12/11/2022]
Abstract
Mitochondrial DNA (mtDNA) mutations are maternally inherited and are associated with a broad range of debilitating and fatal diseases. Reproductive technologies designed to uncouple the inheritance of mtDNA from nuclear DNA may enable affected women to have a genetically related child with a greatly reduced risk of mtDNA disease. Here we report the first preclinical studies on pronuclear transplantation (PNT). Surprisingly, techniques used in proof-of-concept studies involving abnormally fertilized human zygotes were not well tolerated by normally fertilized zygotes. We have therefore developed an alternative approach based on transplanting pronuclei shortly after completion of meiosis rather than shortly before the first mitotic division. This promotes efficient development to the blastocyst stage with no detectable effect on aneuploidy or gene expression. After optimization, mtDNA carryover was reduced to <2% in the majority (79%) of PNT blastocysts. The importance of reducing carryover to the lowest possible levels is highlighted by a progressive increase in heteroplasmy in a stem cell line derived from a PNT blastocyst with 4% mtDNA carryover. We conclude that PNT has the potential to reduce the risk of mtDNA disease, but it may not guarantee prevention.
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Affiliation(s)
- Louise A Hyslop
- Wellcome Trust Centre for Mitochondrial Research, Institute of Genetic Medicine, Biomedicine West Wing, Centre for Life, Times Square, Newcastle upon Tyne NE1 3BZ, UK
- Newcastle Fertility Centre, Biomedicine West Wing, Centre for Life, Times Square, Newcastle upon Tyne NE1 4EP, UK
| | - Paul Blakeley
- The Francis Crick Institute, Human Embryo and Stem Cell Laboratory, Mill Hill Laboratory, Mill Hill, London NW7 1AA, UK
| | - Lyndsey Craven
- Wellcome Trust Centre for Mitochondrial Research, Institute of Neuroscience, Newcastle University, The Medical School, Framlington Place, Newcastle upon Tyne NE2 4HH, UK
| | - Jessica Richardson
- Wellcome Trust Centre for Mitochondrial Research, Institute of Genetic Medicine, Biomedicine West Wing, Centre for Life, Times Square, Newcastle upon Tyne NE1 3BZ, UK
| | - Norah M E Fogarty
- The Francis Crick Institute, Human Embryo and Stem Cell Laboratory, Mill Hill Laboratory, Mill Hill, London NW7 1AA, UK
| | - Elpida Fragouli
- Reprogenetics UK, Institute of Reproductive Sciences, Oxford Business Park North, Oxford OX4 2HW, UK
| | - Mahdi Lamb
- Wellcome Trust Centre for Mitochondrial Research, Institute of Genetic Medicine, Biomedicine West Wing, Centre for Life, Times Square, Newcastle upon Tyne NE1 3BZ, UK
| | - Sissy E Wamaitha
- The Francis Crick Institute, Human Embryo and Stem Cell Laboratory, Mill Hill Laboratory, Mill Hill, London NW7 1AA, UK
| | - Nilendran Prathalingam
- Wellcome Trust Centre for Mitochondrial Research, Institute of Genetic Medicine, Biomedicine West Wing, Centre for Life, Times Square, Newcastle upon Tyne NE1 3BZ, UK
- Newcastle Fertility Centre, Biomedicine West Wing, Centre for Life, Times Square, Newcastle upon Tyne NE1 4EP, UK
| | - Qi Zhang
- Wellcome Trust Centre for Mitochondrial Research, Institute of Genetic Medicine, Biomedicine West Wing, Centre for Life, Times Square, Newcastle upon Tyne NE1 3BZ, UK
| | - Hannah O'Keefe
- Wellcome Trust Centre for Mitochondrial Research, Institute of Genetic Medicine, Biomedicine West Wing, Centre for Life, Times Square, Newcastle upon Tyne NE1 3BZ, UK
| | - Yuko Takeda
- Wellcome Trust Centre for Mitochondrial Research, Institute of Genetic Medicine, Biomedicine West Wing, Centre for Life, Times Square, Newcastle upon Tyne NE1 3BZ, UK
| | - Lucia Arizzi
- Wellcome Trust Centre for Mitochondrial Research, Institute of Genetic Medicine, Biomedicine West Wing, Centre for Life, Times Square, Newcastle upon Tyne NE1 3BZ, UK
- Newcastle Fertility Centre, Biomedicine West Wing, Centre for Life, Times Square, Newcastle upon Tyne NE1 4EP, UK
| | - Samer Alfarawati
- Reprogenetics UK, Institute of Reproductive Sciences, Oxford Business Park North, Oxford OX4 2HW, UK
| | - Helen A Tuppen
- Wellcome Trust Centre for Mitochondrial Research, Institute of Neuroscience, Newcastle University, The Medical School, Framlington Place, Newcastle upon Tyne NE2 4HH, UK
| | - Laura Irving
- Wellcome Trust Centre for Mitochondrial Research, Institute of Genetic Medicine, Biomedicine West Wing, Centre for Life, Times Square, Newcastle upon Tyne NE1 3BZ, UK
| | - Dimitrios Kalleas
- Wellcome Trust Centre for Mitochondrial Research, Institute of Genetic Medicine, Biomedicine West Wing, Centre for Life, Times Square, Newcastle upon Tyne NE1 3BZ, UK
| | - Meenakshi Choudhary
- Newcastle Fertility Centre, Biomedicine West Wing, Centre for Life, Times Square, Newcastle upon Tyne NE1 4EP, UK
| | - Dagan Wells
- University of Oxford, Nuffield Department of Obstetrics and Gynaecology, John Radcliffe Hospital, Oxford OX3 9DU, UK
| | - Alison P Murdoch
- Newcastle Fertility Centre, Biomedicine West Wing, Centre for Life, Times Square, Newcastle upon Tyne NE1 4EP, UK
| | - Douglass M Turnbull
- Wellcome Trust Centre for Mitochondrial Research, Institute of Neuroscience, Newcastle University, The Medical School, Framlington Place, Newcastle upon Tyne NE2 4HH, UK
| | - Kathy K Niakan
- The Francis Crick Institute, Human Embryo and Stem Cell Laboratory, Mill Hill Laboratory, Mill Hill, London NW7 1AA, UK
| | - Mary Herbert
- Wellcome Trust Centre for Mitochondrial Research, Institute of Genetic Medicine, Biomedicine West Wing, Centre for Life, Times Square, Newcastle upon Tyne NE1 3BZ, UK
- Newcastle Fertility Centre, Biomedicine West Wing, Centre for Life, Times Square, Newcastle upon Tyne NE1 4EP, UK
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15
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Devito L, Petrova A, Miere C, Codognotto S, Blakely N, Lovatt A, Ogilvie C, Khalaf Y, Ilic D. Cost-effective master cell bank validation of multiple clinical-grade human pluripotent stem cell lines from a single donor. Stem Cells Transl Med 2014; 3:1116-24. [PMID: 25122690 DOI: 10.5966/sctm.2014-0015] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Standardization guidelines for human pluripotent stem cells are still very broadly defined, despite ongoing clinical trials in the U.S., U.K., and Japan. The requirements for validation of human embryonic (hESCs) and induced pluripotent stem cells (iPSCs) in general follow the regulations for other clinically compliant biologics already in place but without addressing key differences between cell types or final products. In order to realize the full potential of stem cell therapy, validation criteria, methodology, and, most importantly, strategy, should address the shortfalls and efficiency of current approaches; without this, hESC- and, especially, iPSC-based therapy will not be able to compete with other technologies in a cost-efficient way. We addressed the protocols for testing cell lines for human viral pathogens and propose a novel strategy that would significantly reduce costs. It is highly unlikely that the multiple cell lines derived in parallel from a tissue sample taken from one donor would have different profiles of endogenous viral pathogens; we therefore argue that samples from the Master Cell Banks of sibling lines could be safely pooled for validation. We illustrate this approach with tiered validation of two sibling clinical-grade hESC lines, KCL033 and KCL034 (stage 1, sterility; stage 2, specific human pathogens; and stage 3, nonspecific human pathogens). The results of all tests were negative. This cost-effective strategy could also be applied for validation of Master Cell Banks of multiple clinical-grade iPSC lines derived from a single donor.
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Affiliation(s)
- Liani Devito
- Division of Women's Health, Women's Health Academic Centre, King's College London, London, United Kingdom
| | - Anastasia Petrova
- Division of Women's Health, Women's Health Academic Centre, King's College London, London, United Kingdom
| | - Cristian Miere
- Division of Women's Health, Women's Health Academic Centre, King's College London, London, United Kingdom
| | - Stefano Codognotto
- Division of Women's Health, Women's Health Academic Centre, King's College London, London, United Kingdom; St8Biologics, QA Consultancy, London, United Kingdom
| | | | | | - Caroline Ogilvie
- Guy's & St. Thomas' Centre for Preimplantation Genetic Diagnosis and Genetics Centre and
| | - Yacoub Khalaf
- Division of Women's Health, Women's Health Academic Centre, King's College London, London, United Kingdom; Assisted Conception Unit, Guy's & St. Thomas' National Health Services Foundation Trust, London, United Kingdom
| | - Dusko Ilic
- Division of Women's Health, Women's Health Academic Centre, King's College London, London, United Kingdom;
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16
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Stevens A, Shamseer L, Weinstein E, Yazdi F, Turner L, Thielman J, Altman DG, Hirst A, Hoey J, Palepu A, Schulz KF, Moher D. Relation of completeness of reporting of health research to journals' endorsement of reporting guidelines: systematic review. BMJ 2014; 348:g3804. [PMID: 24965222 PMCID: PMC4070413 DOI: 10.1136/bmj.g3804] [Citation(s) in RCA: 187] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 05/27/2014] [Indexed: 12/16/2022]
Abstract
OBJECTIVE To assess whether the completeness of reporting of health research is related to journals' endorsement of reporting guidelines. DESIGN Systematic review. DATA SOURCES Reporting guidelines from a published systematic review and the EQUATOR Network (October 2011). Studies assessing the completeness of reporting by using an included reporting guideline (termed "evaluations") (1990 to October 2011; addendum searches in January 2012) from searches of either Medline, Embase, and the Cochrane Methodology Register or Scopus, depending on reporting guideline name. STUDY SELECTION English language reporting guidelines that provided explicit guidance for reporting, described the guidance development process, and indicated use of a consensus development process were included. The CONSORT statement was excluded, as evaluations of adherence to CONSORT had previously been reviewed. English or French language evaluations of included reporting guidelines were eligible if they assessed the completeness of reporting of studies as a primary intent and those included studies enabled the comparisons of interest (that is, after versus before journal endorsement and/or endorsing versus non-endorsing journals). DATA EXTRACTION Potentially eligible evaluations of included guidelines were screened initially by title and abstract and then as full text reports. If eligibility was unclear, authors of evaluations were contacted; journals' websites were consulted for endorsement information where needed. The completeness of reporting of reporting guidelines was analyzed in relation to endorsement by item and, where consistent with the authors' analysis, a mean summed score. RESULTS 101 reporting guidelines were included. Of 15,249 records retrieved from the search for evaluations, 26 evaluations that assessed completeness of reporting in relation to endorsement for nine reporting guidelines were identified. Of those, 13 evaluations assessing seven reporting guidelines (BMJ economic checklist, CONSORT for harms, PRISMA, QUOROM, STARD, STRICTA, and STROBE) could be analyzed. Reporting guideline items were assessed by few evaluations. CONCLUSIONS The completeness of reporting of only nine of 101 health research reporting guidelines (excluding CONSORT) has been evaluated in relation to journals' endorsement. Items from seven reporting guidelines were quantitatively analyzed, by few evaluations each. Insufficient evidence exists to determine the relation between journals' endorsement of reporting guidelines and the completeness of reporting of published health research reports. Journal editors and researchers should consider collaborative prospectively designed, controlled studies to provide more robust evidence. SYSTEMATIC REVIEW REGISTRATION Not registered; no known register currently accepts protocols for methodology systematic reviews.
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Affiliation(s)
- Adrienne Stevens
- Centre for Practice-Changing Research, Ottawa Hospital Research Institute, Ottawa, ON, Canada, K1H 8L6
| | - Larissa Shamseer
- Centre for Practice-Changing Research, Ottawa Hospital Research Institute, Ottawa, ON, Canada, K1H 8L6 Department of Epidemiology and Community Medicine, University of Ottawa, K1H 8M5 Ottawa, Canada
| | - Erica Weinstein
- Albert Einstein College of Medicine, Yeshiva University, Bronx, NY 10461, USA
| | - Fatemeh Yazdi
- Centre for Practice-Changing Research, Ottawa Hospital Research Institute, Ottawa, ON, Canada, K1H 8L6
| | - Lucy Turner
- Centre for Practice-Changing Research, Ottawa Hospital Research Institute, Ottawa, ON, Canada, K1H 8L6
| | - Justin Thielman
- Centre for Practice-Changing Research, Ottawa Hospital Research Institute, Ottawa, ON, Canada, K1H 8L6
| | - Douglas G Altman
- Centre for Statistics in Medicine, University of Oxford, Oxford OX3 7LD, UK
| | - Allison Hirst
- Nuffield Department of Surgical Sciences, University of Oxford, Oxford OX3 9DU, UK
| | - John Hoey
- Population and Public Health Initiative, Queen's University, Kingston, ON, Canada, K7L 3N6
| | - Anita Palepu
- Centre for Health Evaluation and Outcome Sciences, St Paul's Hospital, Vancouver, BC, Canada, V6Z 1Y9 Department of Medicine, University of British Columbia, Vancouver, BC, Canada, V5Z 1M9
| | - Kenneth F Schulz
- International Clinical Sciences Support Center, FHI 360, Durham, NC 27713, USA
| | - David Moher
- Centre for Practice-Changing Research, Ottawa Hospital Research Institute, Ottawa, ON, Canada, K1H 8L6 Department of Epidemiology and Community Medicine, University of Ottawa, K1H 8M5 Ottawa, Canada
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17
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Vitrification of human blastocysts previously cryopreserved by slow controlled-rate freezing at the cleavage stage. J Assist Reprod Genet 2014; 31:447-51. [PMID: 24390627 DOI: 10.1007/s10815-013-0164-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2013] [Accepted: 12/17/2013] [Indexed: 10/25/2022] Open
Abstract
PURPOSE The objective of this study was to evaluate the efficiency of vitrified blastocysts derived from frozen-thawed cleavage stage embryos in terms of morphological survival and re-expansion status of the blastocoelic cavity. RESULTS After warming 162 blastocysts derived from fresh embryos (= control group) and 90 blastocysts from frozen-thawed cleavage stage embryos (= study group) and after 2-3 h of in vitro culture the percentage of blastocysts with morphological survival was not different between the two groups. After 24 h of in vitro culture, the percentage of fully expanded, hatching or hatched blastocysts was not different between both groups. CONCLUSION(S) The results show that blastocysts derived from frozen-thawed cleavage stage embryos can be cryopreserved successfully a second time by vitrification method. Re-cryopreservation by vitrification still needs to be approached with some caution because little data on long term safety of multiple freezing is available.
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18
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Hussain W, Moens N, Veraitch FS, Hernandez D, Mason C, Lye GJ. Reproducible culture and differentiation of mouse embryonic stem cells using an automated microwell platform. Biochem Eng J 2013; 77:246-257. [PMID: 23956681 PMCID: PMC3741632 DOI: 10.1016/j.bej.2013.05.008] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2012] [Revised: 04/16/2013] [Accepted: 05/16/2013] [Indexed: 02/05/2023]
Abstract
We describe an automated platform for hands-free ESC expansion and differentiation. Key bioprocess variables were investigated to optimize culture inductions. Cell growth was more consistent with automated ESC expansion than manual culture. ESCs expanded on the automated platform maintained high levels of pluripotency. Cells expressed βIII-tubulin after successful automated neuronal differentiation.
The use of embryonic stem cells (ESCs) and their progeny in high throughput drug discovery and regenerative medicine will require production at scale of well characterized cells at an appropriate level of purity. The adoption of automated bioprocessing techniques offers the possibility to overcome the lack of consistency and high failure rates seen with current manual protocols. To build the case for increased use of automation this work addresses the key question: “can an automated system match the quality of a highly skilled and experienced person working manually?” To answer this we first describe an integrated automation platform designed for the ‘hands-free’ culture and differentiation of ESCs in microwell formats. Next we outline a framework for the systematic investigation and optimization of key bioprocess variables for the rapid establishment of validatable Standard Operating Procedures (SOPs). Finally the experimental comparison between manual and automated bioprocessing is exemplified by expansion of the murine Oct-4-GiP ESC line over eight sequential passages with their subsequent directed differentiation into neural precursors. Our results show that ESCs can be effectively maintained and differentiated in a highly reproducible manner by the automated system described. Statistical analysis of the results for cell growth over single and multiple passages shows up to a 3-fold improvement in the consistency of cell growth kinetics with automated passaging. The quality of the cells produced was evaluated using a panel of biological markers including cell growth rate and viability, nutrient and metabolite profiles, changes in gene expression and immunocytochemistry. Automated processing of the ESCs had no measurable negative effect on either their pluripotency or their ability to differentiate into the three embryonic germ layers. Equally important is that over a 6-month period of culture without antibiotics in the medium, we have not had any cases of culture contamination. This study thus confirms the benefits of adopting automated bioprocess routes to produce cells for therapy and for use in basic discovery research.
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Affiliation(s)
- Waqar Hussain
- The Advanced Centre for Biochemical Engineering, Department of Biochemical Engineering, University College London, Torrington Place, London WC1E 7JE, UK
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19
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O'Leary T, Heindryckx B, Lierman S, Van der Jeught M, Duggal G, De Sutter P, Chuva de Sousa Lopes SM. Derivation of human embryonic stem cells using a post–inner cell mass intermediate. Nat Protoc 2013; 8:254-64. [DOI: 10.1038/nprot.2012.157] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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20
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Human Embryonic Stem Cells. Regen Med 2013. [DOI: 10.1007/978-94-007-5690-8_7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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21
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Camarasa MV, Galvez VM, Brison DR, Bachiller D. Optimized protocol for derivation of human embryonic stem cell lines. Stem Cell Rev Rep 2012; 8:1011-20. [PMID: 22614996 DOI: 10.1007/s12015-012-9377-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
For the past 12 years, the biology and applications of human embryonic stem cells (hESCs) have received great attention from the scientific community. Derivatives of the first hESC line obtained by J. Thomson's group (Science 282(5391):1145-1147, 1998) have been used in clinical trials in patients with spinal cord injury, and other hESC lines have now been used to generate cells for use in treating blindness (Lancet 379(9817):713-720, 2012). In addition to the classical protocol based on mouse or human feeder layers using open culture methods (In Vitro Cellular & Developmental Biology - Animal 46(3-4):386-394, 2010; Stem Cells 23(9):1221-1227, 2005; Nature Biotechnology 24(2):185-187, 2006; Human Reproduction 21(2):503-511, 2006; Human Reproduction 20(8):2201-2206, 2005; Fertility and Sterility 83(5):1517-1529, 2005), novel hESC lines have been derived xeno-free (without using animal derived reagents) (PLoS One 5 (4):1024-1026, 2010), feeder-free (without supporting cell monolayers) (Lancet 365(9471):1601-1603, 2005), in microdrops under oil (In Vitro Cellular & Developmental Biology - Animal 46(3-4):236-41, 2010) and in suspension with ROCK inhibitor (Nature Biotechnology 28(4):361-4, 2010). Regardless of the culture system, successful hESC derivation usually requires optimization of embryo culture, the careful and timely isolation of its inner cell mass (ICM), and precise culture conditions up to the establishment of pluripotent cell growth during hESC line derivation. Herein we address the crucial steps of the hESC line derivation protocol, and provide tips to apply quality control to each step of the procedure.
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Affiliation(s)
- María Vicenta Camarasa
- Caubet-Cimera Fundation, Centre for Advanced Respiratory Medicine, Recinte Hospital Joan March, Ctra Sóller km 12, 07110 Bunyola, Illes Balears, Mallorca, Spain.
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22
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Machtinger R, Racowsky C. Morphological systems of human embryo assessment and clinical evidence. Reprod Biomed Online 2012; 26:210-21. [PMID: 23352813 DOI: 10.1016/j.rbmo.2012.10.021] [Citation(s) in RCA: 96] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2012] [Revised: 10/16/2012] [Accepted: 10/16/2012] [Indexed: 10/27/2022]
Abstract
Success rates with IVF have improved remarkably since the procedure was first established for clinical use with the first successful birth in 1978. The main goals today are to perform single-embryo transfer in order to prevent multiple pregnancies and achieve higher overall pregnancy rates. However, the ability to identify the most viable embryo in a cohort remains a challenge despite the numerous scoring systems currently in use. Clinicians still depend on developmental rate and morphological assessment using light microscopy as the first-line approach for embryo selection. Active research in the field involves developing non-invasive methods for scoring embryos and ranking them according to their ability to implant and give rise to a healthy birth. Current attention is particularly being focused on time-lapse evaluation. Available data from preliminary studies indicate that these systems are safe;prospective data now need to be collected to determine whether these methods do improve implantation rates. This review gives brief consideration to the use of morphological evaluations in assisted reproduction treatment, discusses the types of embryo scoring,digital imaging and biometric approaches currently in use and comments on future developments for embryo evaluation.
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Affiliation(s)
- Ronit Machtinger
- Department of Obstetrics, Gynecology and Reproductive Biology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, United States
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23
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Procedures for derivation and characterisation of human embryonic stem cells from Odense, Denmark. Methods Mol Biol 2012. [PMID: 22528347 DOI: 10.1007/978-1-61779-794-1_3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
Abstract
In 1998, a development occurred in stem cell biology with the first report of the derivation of a human embryonic stem cell (hESC) line. Since then a number of techniques have been used to derive and characterise hESCs. Here, we describe the derivation methods used by our laboratory for isolation of the ICM by immunosurgery and outgrowth of the whole blastocyst. We have added protocols for routine culture, passaging and cryopreservation of our hESC lines as well as the methods we have used for characterisation (flow cytometry, karyotyping, immunocytochemistry, in vitro and in vivo differentiation). Additionally, we have included gene sequences for PCR and an antibody list for immunocytochemistry.
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24
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O'Leary T, Duggal G, Lierman S, Van den Abbeel E, Heindryckx B, De Sutter P. The influence of patient and cohort parameters on the incidence and developmental potential of embryos with poor quality traits for use in human embryonic stem cell derivation. Hum Reprod 2012; 27:1581-9. [PMID: 22442247 DOI: 10.1093/humrep/des040] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Human embryonic stem cells (hESCs) are most commonly derived from the inner cell mass (ICM) of blastocyst stage embryos. While the majority of hESC lines originate from good-quality embryos donated after cryogenic storage, poor-quality embryos (PQEs) not suitable for clinical use have also been shown to generate hESC. This provides a newfound function for embryos that would otherwise be discarded following IVF or ICSI. Owing to their lack of clinical importance, however, data on the poorest embryos in a cohort go largely unreported in the literature. It is therefore of interest to better understand the availability of PQEs from IVF/ICSI cycles and to determine their ability to develop into blastocysts with good-quality ICMs for use in hESC derivation. In this study, we investigate the influence of patient parameters and embryo cohort on PQE incidence, blastocyst development, ICM quality and successful hESC derivation from donated PQEs. METHODS PQEs from 736 patient cycles that did not meet our clinical criteria for transfer or cryopreservation were cultured until Day 6 of development and assessed for blastocyst formation and ICM quality. A subset of blastocysts with good-quality ICMs were then used for hESC derivation attempts. Anonymous patient data such as maternal age, embryo history and cohort parameters were then retrospectively compiled and analysed. RESULTS PQEs made up 46.8% of two pronucleate embryos created from IVF/ICSI. Including embryos with abnormal fertilization, a mean of 3.6 ± 2.8 embryos were donated per cycle with 32.6% developing to the blastocyst stage. Good-quality ICM were produced in 13.9% of PQEs cultured. Of good-quality ICM, 15.4% of those used in hESC derivation attempts resulted in a novel line. The PQEs that originated from older patients (>37 year) or from cycles that did not result in pregnancy had significantly diminished blastocyst development and ICM quality. Maternal age was also shown to further influence the ability of good-quality ICMs to generate hESC. CONCLUSIONS PQEs are an abundant source of embryos capable of developing to blastocysts with good-quality ICMs and subsequently generating novel hESC. We have shown that prognostic variables used to predict IVF/ICSI outcome can also help predict which PQEs have the best hESC developmental potential. Owing to the diversity of PQE origin, experiments designed to compare hESC derivation techniques or efficiency using PQEs should consider clinical IVF/ICSI parameters to establish groups with equal developmental competence. Additional investigation is needed to determine if these results are applicable to hESC derivation using good-quality embryos.
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Affiliation(s)
- T O'Leary
- Department for Reproductive Medicine, Ghent University Hospital, De Pintelaan, Ghent, Belgium.
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25
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Tracking the progression of the human inner cell mass during embryonic stem cell derivation. Nat Biotechnol 2012; 30:278-82. [PMID: 22371082 DOI: 10.1038/nbt.2135] [Citation(s) in RCA: 99] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2011] [Accepted: 01/22/2012] [Indexed: 01/08/2023]
Abstract
The different pluripotent states of mouse embryonic stem cells (ESCs) in vitro have been shown to correspond to stages of mouse embryonic development. For human cells, little is known about the events that precede the generation of ESCs or whether they correlate with in vivo developmental stages. Here we investigate the cellular and molecular changes that occur during the transition from the human inner cell mass (ICM) to ESCs in vitro. We demonstrate that human ESCs originate from a post-ICM intermediate (PICMI), a transient epiblast-like structure that has undergone X-inactivation in female cells and is both necessary and sufficient for ESC derivation. The PICMI is the result of progressive and defined ICM organization in vitro and has a distinct state of cell signaling. The PICMI can be cryopreserved without compromising ESC derivation capacity. As a closer progenitor of ESCs than the ICM, the PICMI provides insight into the pluripotent state of human stem cells.
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26
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Abstract
Human embryonic stem cells (HESCs) are of great interest in biology and medicine due to their ability to grow indefinitely in culture while maintaining their ability to differentiate into all different cell types in the human body. In addition, HESCs can be used for better understanding the key developmental processes and can, therefore, serve for studying genetic disorders for which no good research model exists. Preimplantation genetic diagnosis of in vitro derived embryos results in affected-spare blastocysts with specific known inherited mutations.These affected blastocysts can be used for the derivation of disease-bearing HESCs, which would serve for studying the molecular and pathophysiological mechanisms underlying the genetic disease for which they were diagnosed. This chapter describes the methods to derive HESCs carrying mutations for inherited disorders.
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Ilic D, Stephenson E, Wood V, Jacquet L, Stevenson D, Petrova A, Kadeva N, Codognotto S, Patel H, Semple M, Cornwell G, Ogilvie C, Braude P. Derivation and feeder-free propagation of human embryonic stem cells under xeno-free conditions. Cytotherapy 2011; 14:122-8. [PMID: 22029654 DOI: 10.3109/14653249.2011.623692] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
BACKGROUND AIMS Human embryonic stem (hES) cells hold great potential for cell therapy and regenerative medicine because of their pluripotency and capacity for self-renewal. The conditions used to derive and culture hES cells vary between and within laboratories depending on the desired use of the cells. Until recently, stem cell culture has been carried out using feeder cells, and culture media, that contain animal products. Recent advances in technology have opened up the possibility of both xeno-free and feeder-free culture of stem cells, essential conditions for the use of stem cells for clinical purposes. To date, however, there has been limited success in achieving this aim. METHODS, RESULTS AND CONCLUSIONS Protocols were developed for the successful derivation of two normal and three specific mutation-carrying (SMC) (Huntington's disease and myotonic dystrophy 1) genomically stable hES cell lines, and their adaptation to feeder-free culture, all under xeno-free conditions.
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Affiliation(s)
- Dusko Ilic
- Embryonic Stem Cell Laboratories, Guy's Assisted Conception Unit, Division of Women's Health, King's College School of Medicine, London, UK.
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Describing reporting guidelines for health research: a systematic review. J Clin Epidemiol 2011; 64:718-42. [DOI: 10.1016/j.jclinepi.2010.09.013] [Citation(s) in RCA: 112] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2010] [Revised: 09/28/2010] [Accepted: 09/29/2010] [Indexed: 11/24/2022]
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Hernandez D, Ruban L, Mason C. Feeder-Free Culture of Human Embryonic Stem Cells for Scalable Expansion in a Reproducible Manner. Stem Cells Dev 2011; 20:1089-98. [DOI: 10.1089/scd.2009.0507] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Affiliation(s)
- Diana Hernandez
- Advanced Centre for Biochemical Engineering, University College London, London, United Kingdom
| | - Ludmila Ruban
- Advanced Centre for Biochemical Engineering, University College London, London, United Kingdom
| | - Christopher Mason
- Advanced Centre for Biochemical Engineering, University College London, London, United Kingdom
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Abstract
BACKGROUND Many variations in oocyte and embryo grading make inter-laboratory comparisons extremely difficult. This paper reports the proceedings of an international consensus meeting on oocyte and embryo morphology assessment. METHODS Background presentations about current practice were given. RESULTS The expert panel developed a set of consensus points to define the minimum criteria for oocyte and embryo morphology assessment. CONCLUSIONS It is expected that the definition of common terminology and standardization of laboratory practice related to embryo morphology assessment will result in more effective comparisons of treatment outcomes. This document is intended to be referenced as a global consensus to allow standardized reporting of the minimum data set required for the accurate description of embryo development.
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Gavrilov S, Marolt D, Douglas NC, Prosser RW, Khalid I, Sauer MV, Landry DW, Vunjak-Novakovic G, Papaioannou VE. Derivation of two new human embryonic stem cell lines from nonviable human embryos. Stem Cells Int 2011; 2011:765378. [PMID: 21716665 PMCID: PMC3118293 DOI: 10.4061/2011/765378] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2010] [Accepted: 03/17/2011] [Indexed: 12/22/2022] Open
Abstract
We report the derivation and characterization of two new human embryonic stem cells (hESC) lines (CU1 and CU2) from embryos with an irreversible loss of integrated organismic function. In addition, we analyzed retrospective data of morphological progression from embryonic day (ED) 5 to ED6 for 2480 embryos not suitable for clinical use to assess grading criteria indicative of loss of viability on ED5. Our analysis indicated that a large proportion of in vitro fertilization (IVF) embryos not suitable for clinical use could be used for hESC derivation. Based on these combined findings, we propose that criteria commonly used in IVF clinics to determine optimal embryos for uterine transfer can be employed to predict the potential for hESC derivation from poor quality embryos without the destruction of vital human embryos.
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Affiliation(s)
- Svetlana Gavrilov
- Department of Genetics and Development, College of Physicians and Surgeons of Columbia University, 701 West 168th Street, New York, NY 10032, USA
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O'Leary T, Heindryckx B, Lierman S, Van der Jeught M, Menten B, Deforce D, Cornelissen R, de Sousa Lopes SC, De Sutter P. The Influence of Early Embryo Traits on Human Embryonic Stem Cell Derivation Efficiency. Stem Cells Dev 2011; 20:785-93. [DOI: 10.1089/scd.2010.0338] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Thomas O'Leary
- Department for Reproductive Medicine, Ghent University Hospital, Ghent, Belgium
| | - Björn Heindryckx
- Department for Reproductive Medicine, Ghent University Hospital, Ghent, Belgium
| | - Sylvie Lierman
- Department for Reproductive Medicine, Ghent University Hospital, Ghent, Belgium
| | | | - Björn Menten
- Center for Medical Genetics, Ghent University Hospital, Ghent, Belgium
| | - Dieter Deforce
- Laboratory of Pharmaceutical Biotechnology, Faculty of Pharmaceutical Sciences, Ghent University, Ghent, Belgium
| | - Ria Cornelissen
- Department of Basic Medical Science, Ghent University, Ghent, Belgium
| | | | - Petra De Sutter
- Department for Reproductive Medicine, Ghent University Hospital, Ghent, Belgium
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Istanbul consensus workshop on embryo assessment: proceedings of an expert meeting. Reprod Biomed Online 2011; 22:632-46. [PMID: 21481639 DOI: 10.1016/j.rbmo.2011.02.001] [Citation(s) in RCA: 315] [Impact Index Per Article: 22.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2011] [Accepted: 02/02/2011] [Indexed: 10/28/2022]
Abstract
This paper reports the proceedings of an international consensus meeting on oocyte and embryo morphology assessment. Following background presentations about current practice, the expert panel developed a set of consensus points to define the minimum criteria for oocyte and embryo morphology assessment. It is expected that the definition of common terminology and standardization of laboratory practice related to embryo morphology assessment will result in more effective comparisons of treatment outcomes. This document is intended to be referenced as a global consensus to allow standardized reporting of the minimum dataset required for the accurate description of embryo development. This paper reports the proceedings and outcomes of an international consensus meeting on human oocyte and embryo morphology assessment. An expert panel developed a series of consensus points to define the minimum criteria for such assessments. The definition of common terminology, and standardization of laboratory practices related to these morphological assessments, will permit more effective comparisons of treatment outcomes around the world. This report is intended to be referenced as a global consensus to allow standardized reporting of the minimum descriptive criteria required for routine clinical evaluations of human embryo development in vitro.
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35
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Englund MCO, Sartipy P, Hyllner J. Human Embryonic Stem Cells. Regen Med 2011. [DOI: 10.1007/978-90-481-9075-1_7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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Ström S, Rodriguez-Wallberg K, Holm F, Bergström R, Eklund L, Strömberg AM, Hovatta O. No relationship between embryo morphology and successful derivation of human embryonic stem cell lines. PLoS One 2010; 5:e15329. [PMID: 21217828 PMCID: PMC3013107 DOI: 10.1371/journal.pone.0015329] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2010] [Accepted: 11/08/2010] [Indexed: 11/18/2022] Open
Abstract
Background The large number (30) of permanent human embryonic stem cell (hESC) lines and additional 29 which did not continue growing, in our laboratory at Karolinska Institutet have given us a possibility to analyse the relationship between embryo morphology and the success of derivation of hESC lines. The derivation method has been improved during the period 2002–2009, towards fewer xeno-components. Embryo quality is important as regards the likelihood of pregnancy, but there is little information regarding likelihood of stem cell derivation. Methods We evaluated the relationship of pronuclear zygote stage, the score based on embryo morphology and developmental rate at cleavage state, and the morphology of the blastocyst at the time of donation to stem cell research, to see how they correlated to successful establishment of new hESC lines. Results Derivation of hESC lines succeeded from poor quality and good quality embryos in the same extent. In several blastocysts, no real inner cell mass (ICM) was seen, but permanent well growing hESC lines could be established. One tripronuclear (3PN) zygote, which developed to blastocyst stage, gave origin to a karyotypically normal hESC line. Conclusion Even very poor quality embryos with few cells in the ICM can give origin to hESC lines.
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Affiliation(s)
- Susanne Ström
- Department of Clinical Science, Intervention and Technology, Karolinska Institutet, Stockholm, Sweden.
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37
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Derivation and characterisation of hESC lines from supernumerary embryos, experience from Odense, Denmark. In Vitro Cell Dev Biol Anim 2010; 46:259-68. [DOI: 10.1007/s11626-010-9281-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2009] [Accepted: 01/14/2010] [Indexed: 02/04/2023]
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Stephenson EL, Braude PR. Derivation of the King's College London human embryonic stem cell lines. In Vitro Cell Dev Biol Anim 2010; 46:178-85. [PMID: 20178004 DOI: 10.1007/s11626-010-9276-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2009] [Accepted: 01/14/2010] [Indexed: 11/24/2022]
Abstract
Since the derivation of the first human embryonic stem cell (hESC) line in 1998, there has been substantial interest in the potential of these cells for regenerative medicine and cell therapy and in the use of hESCs carrying clinically relevant genetic mutations as models for disease research and therapeutic target identification. There is still a need to improve derivation efficiency and further the understanding of the basic biology of these cells and to develop clinical grade culture systems with the aim of producing cell lines suitable for subsequent manipulation for therapy. The derivation of initial hESC lines at King's College London is discussed here, with focus on derivation methodology. Each of the derivations was distinctive. Although the stage and morphology of each blastocyst were generally similar in each attempt, the behaviour of the colonies was unpredictable; colony morphology and development was different with each attempt. Days 5, 6 and 7 blastocysts were used successfully, and the number of days until appearance of stem-like cells varied from 4 to 14 d. Routine characterisation analyses were performed on three lines, all of which displayed appropriate marker expression and survived cryopreservation-thaw cycles. From the lines discussed, four are at various stages of the deposition process with the UKSCB, one is pending submission and two are unsuitable for banking. Continued open and transparent reporting of results and collaborations will maximise the efficiency of derivation and facilitate the development of standardised protocols for the derivation and early culture of hESC lines.
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Affiliation(s)
- Emma L Stephenson
- Department of Women's Health and Division of Reproduction and Endocrinology, King's College London, London, UK.
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39
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Derivation of Man-1 and Man-2 research grade human embryonic stem cell lines. In Vitro Cell Dev Biol Anim 2010; 46:386-94. [DOI: 10.1007/s11626-010-9291-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2009] [Accepted: 01/14/2010] [Indexed: 11/25/2022]
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Hughes MA, Burns DL, Juris SJ, Tang WJ, Clement KH, Eaton LJ, Kelly-Cirino CD, McKee ML, Powell BS, Bishop BL, Rudge TL, Shine N, Verma A, Willis MS, Morse SA. The case for developing consensus standards for research in microbial pathogenesis: Bacillus anthracis toxins as an example. Infect Immun 2009; 77:4182-6. [PMID: 19651858 PMCID: PMC2747970 DOI: 10.1128/iai.00368-09] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Affiliation(s)
- Molly A Hughes
- Department of Medicine, Division of Infectious Diseases and International Health, University of Virginia Health System, P.O. Box 800513, Charlottesville, VA 22908, USA.
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Mason C, Manzotti E. ‘The Little Purple Book’: BSI Glossary of Regenerative Medicine. Regen Med 2009; 4:483-4. [DOI: 10.2217/rme.09.37] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Affiliation(s)
- Chris Mason
- Advanced Centre for Biochemical Engineering, University College London, Roberts Building, Torrington Place, London, WC1E 7JE, UK
| | - Elisa Manzotti
- Future Medicine Ltd, Unitec House, 2 Albert Place, Finchley Central, London, N3 1QB, UK
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Sermon KD, Simon C, Braude P, Viville S, Borstlap J, Veiga A. Creation of a registry for human embryonic stem cells carrying an inherited defect: joint collaboration between ESHRE and hESCreg. Hum Reprod 2009; 24:1556-60. [PMID: 19346524 DOI: 10.1093/humrep/dep062] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Human embryonic stem cells (hESCs), derived from human blastocysts, hold a great promise for regenerative medicine, drug development and basic research in developmental biology. Moreover, hESC lines that carry a clinically relevant inherited defect, monogenic or chromosomal, present an important tool for research into the pathophysiology of these diseases. The hESC registry (hESCreg) was started up in 2007 in order to register all stem cell lines derived in Europe (www.hescreg.eu). Because of the special nature of the hESC lines that carry an inherited disease, they are of particular interest to researchers outside the assisted reproductive technologies or stem cell fields, for instance, those involved in regenerative medicine and in medical and human genetics. To reach these researchers, and to better disseminate the information on the cell lines, a concerted action of the hESCreg together with ESHRE's Special Interest Groups in Reproductive Genetics and Stem Cells was initiated. This mini-review is a first report that will be followed by yearly reports of new lines, not unlike the reports from the Preimplantation Genetic Diagnosis Consortium or the European IVF Monitoring.
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Affiliation(s)
- K D Sermon
- Department of Embryology and Genetics, Vrije Universiteit Brussel, Brussel, Belgium.
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Stephenson EL, Mason C, Braude PR. Preimplantation genetic diagnosis as a source of human embryonic stem cells for disease research and drug discovery. BJOG 2009; 116:158-65. [PMID: 19076947 DOI: 10.1111/j.1471-0528.2008.02009.x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Embryos surplus to therapeutic requirements following preimplantation genetic diagnosis can be used to derive human embryonic stem cell (hESC) lines carrying mutations significant to human disease. These cells provide a powerful in vitro tool for modelling disease progression in a number of cell types as well as having the potential to revolutionise drug discovery. Robust and reproducible directed differentiation protocols are needed to maximise the potential of these cells. In this review, we explore the current use of hESC and induced pluripotent stem cells in disease-specific research and discuss the use of stem cell technology in drug discovery and toxicity testing.
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Affiliation(s)
- E L Stephenson
- Advanced Centre for Biochemical Engineering, University College London, and Guy's Assisted Conception Unit, Guy's Hospital, London, UK.
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Borstlap J, Kurtz A, Stacey G, Elstner A, Damaschun A, Arán B, Gerlach JC, Izpisúa JC, Veiga A. Development of a European human embryonic stem cell registry. Regen Med 2009; 3:945-51. [PMID: 18947315 DOI: 10.2217/17460751.3.6.945] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The number of human embryonic stem cell (hESC) lines that are available and that are subsequently being used in numerous research projects is increasing steadily. However, there is little coordination of hESC line derivation, and comparative information on the characteristics and quality of these cells is sparse. Obtaining consistent information on hESCs is hampered further by legislative fragmentation, particularly in Europe. Recognizing these obstacles, the European Commission has set up a Human Embryonic Stem Cell Registry (hESCreg) to make hESCs and their characterizing information accessible and to ensure that the results of research become more quickly available to the public. The primary objectives of hESCreg are to provide freely accessible information on existing hESC lines, their derivation, molecular characteristics, use and quality. Successful research with listed hESC lines will be used to evaluate clinical potential and thus directly influence policy decisions. The developing integration with other initiatives, such as characterization projects, registries and cell banks, is expected to lead to a common and internationally accepted central reference. The hESCreg provides a first step in this direction and might grow into an internationally funded and administered project.
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Affiliation(s)
- J Borstlap
- CellNet Initiative, Berlin-Brandenburg Center for Regenerative Therapies (BCRT), Charité-Universitätsmedizin Campus Virchow-Klinikum, BCRT, Augustenburger Platz 1, D-13353 Berlin, Germany.
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Cutting R, Morroll D, Roberts SA, Pickering S, Rutherford A. Elective single embryo transfer: guidelines for practice British Fertility Society and Association of Clinical Embryologists. HUM FERTIL 2009; 11:131-46. [PMID: 18766953 DOI: 10.1080/14647270802302629] [Citation(s) in RCA: 120] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Assisted conception treatment is the single most important cause in the increase in multiple pregnancy and births over the last 25 years. Multiple births are associated with significant peri natal morbidity and mortality. Europe has led the way in reducing multiple births by widespread adoption of an elective single embryo policy, which in Belgium is linked to an increase in state funding. Randomized controlled trials suggest that an eSET policy must include the ability to cryopreserve and transfer any remaining quality embryos to obtain parity with a double embryo transfer. This document provides a review of the available evidence with guidelines for practice, to help facilitate the introduction of an eSET policy in the UK.
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Affiliation(s)
- Rachel Cutting
- Centre for Reproductive Medicine and Fertility, Jessops Wing, Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, UK
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Cortes JL, Menendez P. Reproductive medicine meets human embryonic stem cell (hESC) research: the need to adjust the regulatory framework to actual expectations and potential detrimental consequences of hESC research. Fertil Steril 2008; 91:1417-9. [PMID: 18692797 DOI: 10.1016/j.fertnstert.2008.05.041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2008] [Revised: 05/09/2008] [Accepted: 05/15/2008] [Indexed: 10/21/2022]
Abstract
Human embryonic stem cell (hESC)-based cell therapy depends on access to surplus embryos from IVF cycles and collaborative interactions between biomedical researchers and reproductive medicine professionals. It is becoming instrumental to achieve an international consensus about the standards that should regulate the manipulation of human embryonic tissue in two distinct settings: reproductive medicine and embryonic stem cell research. Within hESC research, the regulatory framework needs to be adjusted according to the actual expectations and potential detrimental consequences of hESC research.
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Affiliation(s)
- Jose Luis Cortes
- Centro de Investigación Biomédica, Andalusian Stem Cell Bank/University of Granada, Granada, Spain
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Franklin SB, Hunt C, Cornwell G, Peddie V, Desousa P, Livie M, Stephenson EL, Braude PR. hESCCO: development of good practice models for hES cell derivation. Regen Med 2008; 3:105-16. [DOI: 10.2217/17460751.3.1.105] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
One response of the UK research community to the public sensitivity and logistical complexity of embryo donation to stem cell research has been the formation of a national network of ‘human embryonic stem cell coordinators’ (hESCCO). The aim of hESCCO is to contribute to the formation and implementation of national standards for hES cell derivation and banking, in particular the ethical protocols for patient information and informed consent. The hESCCO project is an innovative practical intervention within the broader attempt to establish greater transparency, consistency, efficiency and standardization of hES derivation in the UK. A major outcome of the hESCCO initiative has been the drafting and implementation of a national consent form. The lessons learned in this context may be relevant to other practitioners and regulators as a model of best practice in hES cell derivation.
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Affiliation(s)
- Sarah B Franklin
- London School of Economics and Political Science, BIOS Centre, Houghton Street, London WC2A 2AE, UK
| | - Charles Hunt
- UK Stem Cell Bank, National Institute for Biological Standards and Control, Potters Bar, UK
| | | | | | - Paul Desousa
- Division of Gene Function and Development, Edinburgh, UK
| | | | - Emma L Stephenson
- King’s College, London, UK
- Advanced Centre for Biochemical Engineering, University College, London, UK
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