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Ibrahim M, Grochowska E, Lázár B, Várkonyi E, Bednarczyk M, Stadnicka K. The Effect of Short- and Long-Term Cryopreservation on Chicken Primordial Germ Cells. Genes (Basel) 2024; 15:624. [PMID: 38790253 PMCID: PMC11121574 DOI: 10.3390/genes15050624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2024] [Revised: 05/10/2024] [Accepted: 05/13/2024] [Indexed: 05/26/2024] Open
Abstract
Primordial germ cells (PGCs) are the precursors of functional gametes and the only cell type capable of transmitting genetic and epigenetic information from generation to generation. These cells offer valuable starting material for cell-based genetic engineering and genetic preservation, as well as epigenetic studies. While chicken PGCs have demonstrated resilience in maintaining their germness characteristics during both culturing and cryopreservation, their handling remains a complex challenge requiring further refinement. Herein, the study aimed to compare the effects of different conditions (freezing-thawing and in vitro cultivation) on the expression of PGC-specific marker genes. Embryonic blood containing circulating PGCs was isolated from purebred Green-legged Partridgelike chicken embryos at 14-16 Hamburger-Hamilton (HH) embryonic development stage. The blood was pooled separately for males and females following sex determination. The conditions applied to the blood containing PGCs were as follows: (1) fresh isolation; (2) cryopreservation for a short term (2 days); and (3) in vitro culture (3 months) with long-term cryopreservation of purified PGCs (~2 years). To characterize PGCs, RNA isolation was carried out, followed by quantitative reverse transcription polymerase chain reaction (RT-qPCR) to assess the expression levels of specific germ cell markers (SSEA1, CVH, and DAZL), as well as pluripotency markers (OCT4 and NANOG). The investigated genes exhibited consistent expression among PGCs maintained under diverse conditions, with no discernible differences observed between males and females. Notably, the analyzed markers demonstrated higher expression levels in PGCs when subjected to freezing than in their freshly isolated counterparts.
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Affiliation(s)
- Mariam Ibrahim
- Department of Animal Biotechnology and Genetics, Bydgoszcz University of Science and Technology, Mazowiecka 28, 85-084 Bydgoszcz, Poland
- PBS Doctoral School, Bydgoszcz University of Science and Technology, Aleje Prof. S. Kaliskiego 7, 85-796 Bydgoszcz, Poland
| | - Ewa Grochowska
- Department of Animal Biotechnology and Genetics, Bydgoszcz University of Science and Technology, Mazowiecka 28, 85-084 Bydgoszcz, Poland
| | - Bence Lázár
- National Centre for Biodiversity and Gene Conservation, Institute for Farm Animal Gene Conservation, Isaszegi Street 200, 2100 Godollo, Hungary
- Institute of Genetics and Biotechnology, Hungarian University of Agriculture and Life Sciences, Szent-Gyorgyi Albert Street 4, 2100 Godollo, Hungary
| | - Eszter Várkonyi
- National Centre for Biodiversity and Gene Conservation, Institute for Farm Animal Gene Conservation, Isaszegi Street 200, 2100 Godollo, Hungary
| | - Marek Bednarczyk
- Department of Animal Biotechnology and Genetics, Bydgoszcz University of Science and Technology, Mazowiecka 28, 85-084 Bydgoszcz, Poland
| | - Katarzyna Stadnicka
- Faculty of Health Sciences, Collegium Medicum, Nicolaus Copernicus University, Łukasiewicza 1, 85-821 Bydgoszcz, Poland
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2
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Zare M, Mirhoseini SZ, Ghovvati S, Yakhkeshi S, Hesaraki M, Barati M, Sayyahpour FA, Baharvand H, Hassani SN. The constitutively active pSMAD2/3 relatively improves the proliferation of chicken primordial germ cells. Mol Reprod Dev 2023. [PMID: 37379342 DOI: 10.1002/mrd.23689] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2022] [Revised: 05/06/2023] [Accepted: 05/15/2023] [Indexed: 06/30/2023]
Abstract
In many multicellular organisms, mature gametes originate from primordial germ cells (PGCs). Improvements in the culture of PGCs are important not only for developmental biology research, but also for preserving endangered species, and for genome editing and transgenic animal technologies. SMAD2/3 appear to be powerful regulators of gene expression; however, their potential positive impact on the regulation of PGC proliferation has not been taken into consideration. Here, the effect of TGF-β signaling as the upstream activator of SMAD2/3 transcription factors was evaluated on chicken PGCs' proliferation. For this, chicken PGCs at stages 26-28 Hamburger-Hamilton were obtained from the embryonic gonadal regions and cultured on different feeders or feeder-free substrates. The results showed that TGF-β signaling agonists (IDE1 and Activin-A) improved PGC proliferation to some extent while treatment with SB431542, the antagonist of TGF-β, disrupted PGCs' proliferation. However, the transfection of PGCs with constitutively active SMAD2/3 (SMAD2/3CA) resulted in improved PGC proliferation for more than 5 weeks. The results confirmed the interactions between overexpressed SMAD2/3CA and pluripotency-associated genes NANOG, OCT4, and SOX2. According to the results, the application of SMAD2/3CA could represent a step toward achieving an efficient expansion of avian PGCs.
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Affiliation(s)
- Masumeh Zare
- Department of Animal Sciences, Faculty of Agriculture, University of Guilan, Rasht, Guilan, Iran
| | | | - Shahrokh Ghovvati
- Department of Animal Sciences, Faculty of Agriculture, University of Guilan, Rasht, Guilan, Iran
| | - Saeed Yakhkeshi
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Mahdi Hesaraki
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Mojgan Barati
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Forough Azam Sayyahpour
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Hossein Baharvand
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
- Department of Developmental Biology, School of Basic Sciences and Advanced Technologies in Biology, University of Science and Culture, Tehran, Iran
| | - Seyedeh-Nafiseh Hassani
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
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3
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Kim YM, Woo SJ, Han JY. Strategies for the Generation of Gene Modified Avian Models: Advancement in Avian Germline Transmission, Genome Editing, and Applications. Genes (Basel) 2023; 14:genes14040899. [PMID: 37107658 PMCID: PMC10137648 DOI: 10.3390/genes14040899] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Revised: 04/02/2023] [Accepted: 04/10/2023] [Indexed: 04/29/2023] Open
Abstract
Avian models are valuable for studies of development and reproduction and have important implications for food production. Rapid advances in genome-editing technologies have enabled the establishment of avian species as unique agricultural, industrial, disease-resistant, and pharmaceutical models. The direct introduction of genome-editing tools, such as the clustered regularly interspaced short palindromic repeats (CRISPR) system, into early embryos has been achieved in various animal taxa. However, in birds, the introduction of the CRISPR system into primordial germ cells (PGCs), a germline-competent stem cell, is considered a much more reliable approach for the development of genome-edited models. After genome editing, PGCs are transplanted into the embryo to establish germline chimera, which are crossed to produce genome-edited birds. In addition, various methods, including delivery by liposomal and viral vectors, have been employed for gene editing in vivo. Genome-edited birds have wide applications in bio-pharmaceutical production and as models for disease resistance and biological research. In conclusion, the application of the CRISPR system to avian PGCs is an efficient approach for the production of genome-edited birds and transgenic avian models.
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Affiliation(s)
| | - Seung-Je Woo
- Department of Agricultural Biotechnology, Research Institute of Agriculture and Life Sciences, College of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Republic of Korea
| | - Jae-Yong Han
- Avinnogen Co., Ltd., Seoul 08826, Republic of Korea
- Department of Agricultural Biotechnology, Research Institute of Agriculture and Life Sciences, College of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Republic of Korea
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4
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Mizushima S, Sasanami T, Ono T, Kuroiwa A. Current Approaches to and the Application of Intracytoplasmic Sperm Injection (ICSI) for Avian Genome Editing. Genes (Basel) 2023; 14:genes14030757. [PMID: 36981028 PMCID: PMC10048369 DOI: 10.3390/genes14030757] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Revised: 03/10/2023] [Accepted: 03/17/2023] [Indexed: 03/30/2023] Open
Abstract
Poultry are one of the most valuable resources for human society. They are also recognized as a powerful experimental animal for basic research on embryogenesis. Demands for the supply of low-allergen eggs and bioreactors have increased with the development of programmable genome editing technology. The CRISPR/Cas9 system has recently been used to produce transgenic animals and various animals in the agricultural industry and has also been successfully adopted for the modification of chicken and quail genomes. In this review, we describe the successful establishment of genome-edited lines combined with germline chimera production systems mediated by primordial germ cells and by viral infection in poultry. The avian intracytoplasmic sperm injection (ICSI) system that we previously established and recent advances in ICSI for genome editing are also summarized.
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Affiliation(s)
- Shusei Mizushima
- Faculty of Science, Hokkaido University, Kita 10 Nishi 8, Kita-ku, Sapporo 060-0810, Japan
| | - Tomohiro Sasanami
- Faculty of Agriculture, Shizuoka University, 836 Ohya, Shizuoka 422-8529, Japan
| | - Tamao Ono
- Matsumoto Dental University, 1780 Gobara, Hiro-oka, Shiojiri 399-0781, Nagano, Japan
| | - Asato Kuroiwa
- Faculty of Science, Hokkaido University, Kita 10 Nishi 8, Kita-ku, Sapporo 060-0810, Japan
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5
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Formation, Application, and Significance of Chicken Primordial Germ Cells: A Review. Animals (Basel) 2023; 13:ani13061096. [PMID: 36978637 PMCID: PMC10044044 DOI: 10.3390/ani13061096] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Revised: 03/11/2023] [Accepted: 03/13/2023] [Indexed: 03/22/2023] Open
Abstract
Chicken is one of the most widely consumed sources of protein globally. Primordial germ cells (PGCs) are the precursors for ova and sperm. One of the early embryogenesis events in most animals is the segregation of the somatic and germ lineages. PGC cultures occur in the germline, and PGCs are less studied in many species. It is relatively challenging to separate, cultivate, and genetically alter chicken without mutating the basic germline. The present study aims to gather previous research about chicken PGCs and provide a customized review of studies and developments in the field of PGCs, especially for avian species. Furthermore, we show that the propagation of chicken PGCs into embryonic germ cells that contribute to somatic tissues may be produced in vitro. Primordial germ cells offer an ideal system in developmental biology, as these cells play a vital role in the genetic modification and treatment of infertility. Cryopreservation helps to maintain genetic resources and sustainable production in the poultry industry. Keeping in mind the significance of cryopreservation for storage and gametogenesis, we discuss its role in the preservation of primordial germ cells. Transgenesis and genetic modifications in chicken lead to the development of various medicinal chicken varieties and aid in improving their production and quality for consumption purposes. Additionally, these characteristics open up new possibilities for modifying the chicken genome for agricultural and medical purposes.
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Rasouli-Gharehsaghal K, Shakeri M, Zhandi M, Amini HR, Ghadimi F, Golkar-Narenji A, Mozdziak PE. Spermatogenesis regeneration by transfected spermatogonial stem cells in infertile roosters through testicular transplantation. Theriogenology 2023; 198:100-106. [PMID: 36571934 DOI: 10.1016/j.theriogenology.2022.12.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Revised: 11/28/2022] [Accepted: 12/17/2022] [Indexed: 12/24/2022]
Abstract
Investigations pertaining to spermatogonial stem cells (SSCs) have led to the use of these cells in a variety of fields including infertility treatments, production of transgenic animals, and genome editing. The aim of the present study was to investigate the plausibility of regenerating spermatogenesis in infertile roosters by transplanting transfected SSCs into testes. Spermatogonial stem cells were isolated and cultured for seven days. Afterward, pDB2, a plasmid vector carrying a reporter gene, GFP, was transfected into the SSCs. Transfected SSCs were transplanted into the left testis of infertile roosters. Tissue samples from the recipients' testes were obtained six weeks after the transplantation and transplanted SSCs were observed in the basement membrane. After eight weeks, GFP-positive spermatozoa were observed in collected semen from the recipient roosters and GFP gene in spermatozoa was confirmed using PCR. The recipient roosters were mated with hens. Hatchlings were visually checked and their tissue samples were tested by PCR to identify transgenesis but both of them were negative. Overall, it seems that regeneration of spermatogenesis in roosters via transfected SSCs is possible but more studies are need to produce recombinant proteins by this way.
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Affiliation(s)
- Kazem Rasouli-Gharehsaghal
- Department of Animal Science, College of Agriculture and Natural Resources, University of Tehran, Karaj, Iran
| | - Malak Shakeri
- Department of Animal Science, College of Agriculture and Natural Resources, University of Tehran, Karaj, Iran
| | - Mahdi Zhandi
- Department of Animal Science, College of Agriculture and Natural Resources, University of Tehran, Karaj, Iran.
| | - Hamid-Reza Amini
- Department of Animal Science, College of Agriculture and Natural Resources, University of Tehran, Karaj, Iran; Transgenesis Center of Excellence, Isfahan (Khorasgan) Branch, Islamic Azad University, Isfahan, Iran; Department of Biology, Nourdanesh Institute of Higher Education, Meymeh, Isfahan, Iran
| | - Fereshteh Ghadimi
- Department of Animal Science, College of Agriculture and Natural Resources, University of Tehran, Karaj, Iran
| | - Afsaneh Golkar-Narenji
- Prestage Department of Poultry Science, North Carolina State University, Raleigh, NC, USA
| | - Paul Edward Mozdziak
- Prestage Department of Poultry Science, North Carolina State University, Raleigh, NC, USA; Physiology Graduate Program, North Carolina State University, Raleigh, NC, 27695, USA.
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Chicken blastoderms and primordial germ cells possess a higher expression of DNA repair genes and lower expression of apoptosis genes to preserve their genome stability. Sci Rep 2022; 12:49. [PMID: 34997179 PMCID: PMC8741993 DOI: 10.1038/s41598-021-04417-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Accepted: 12/21/2021] [Indexed: 12/13/2022] Open
Abstract
DNA is susceptible to damage by various sources. When the DNA is damaged, the cell repairs the damage through an appropriate DNA repair pathway. When the cell fails to repair DNA damage, apoptosis is initiated. Although several genes are involved in five major DNA repair pathways and two major apoptosis pathways, a comprehensive understanding of those gene expression is not well-understood in chicken tissues. We performed whole-transcriptome sequencing (WTS) analysis in the chicken embryonic fibroblasts (CEFs), stage X blastoderms, and primordial germ cells (PGCs) to uncover this deficiency. Stage X blastoderms mostly consist of undifferentiated progenitor (pluripotent) cells that have the potency to differentiate into all cell types. PGCs are also undifferentiated progenitor cells that later differentiate into male and female germ cells. CEFs are differentiated and abundant somatic cells. Through WTS analysis, we identified that the DNA repair pathway genes were expressed more highly in blastoderms and high in PGCs than CEFs. Besides, the apoptosis pathway genes were expressed low in blastoderms and PGCs than CEFs. We have also examined the WTS-based expression profiling of candidate pluripotency regulating genes due to the conserved properties of blastoderms and PGCs. In the results, a limited number of pluripotency genes, especially the core transcriptional network, were detected higher in both blastoderms and PGCs than CEFs. Next, we treated the CEFs, blastoderm cells, and PGCs with hydrogen peroxide (H2O2) for 1 h to induce DNA damage. Then, the H2O2 treated cells were incubated in fresh media for 3–12 h to observe DNA repair. Subsequent analyses in treated cells found that blastoderm cells and PGCs were more likely to undergo apoptosis along with the loss of pluripotency and less likely to undergo DNA repair, contrasting with CEFs. These properties of blastoderms and PGCs should be necessary to preserve genome stability during the development of early embryos and germ cells, respectively.
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8
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Jung KM, Seo M, Kim YM, Kim JL, Han JY. Single-Cell RNA Sequencing Revealed the Heterogeneity of Gonadal Primordial Germ Cells in Zebra Finch ( Taeniopygia guttata). Front Cell Dev Biol 2021; 9:791335. [PMID: 34957119 PMCID: PMC8695979 DOI: 10.3389/fcell.2021.791335] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Accepted: 11/26/2021] [Indexed: 11/13/2022] Open
Abstract
Primordial germ cells (PGCs) are undifferentiated gametes with heterogeneity, an evolutionarily conserved characteristic across various organisms. Although dynamic selection at the level of early germ cell populations is an important biological feature linked to fertility, the heterogeneity of PGCs in avian species has not been characterized. In this study, we sought to evaluate PGC heterogeneity in zebra finch using a single-cell RNA sequencing (scRNA-seq) approach. Using scRNA-seq of embryonic gonadal cells from male and female zebra finches at Hamburger and Hamilton (HH) stage 28, we annotated nine cell types from 20 cell clusters. We found that PGCs previously considered a single population can be separated into three subtypes showing differences in apoptosis, proliferation, and other biological processes. The three PGC subtypes were specifically enriched for genes showing expression patterns related to germness or pluripotency, suggesting functional differences in PGCs according to the three subtypes. Additionally, we discovered a novel biomarker, SMC1B, for gonadal PGCs in zebra finch. The results provide the first evidence of substantial heterogeneity in PGCs previously considered a single population in birds. This discovery expands our understanding of PGCs to avian species, and provides a basis for further research.
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Affiliation(s)
- Kyung Min Jung
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Sciences, College of Agriculture and Life Sciences, Seoul National University, Seoul, South Korea
| | - Minseok Seo
- Department of Computer Convergence Software, Korea University, Sejong, South Korea
| | - Young Min Kim
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Sciences, College of Agriculture and Life Sciences, Seoul National University, Seoul, South Korea
| | - Jin Lee Kim
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Sciences, College of Agriculture and Life Sciences, Seoul National University, Seoul, South Korea
| | - Jae Yong Han
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Sciences, College of Agriculture and Life Sciences, Seoul National University, Seoul, South Korea
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9
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Jin K, Li D, Jin J, Song J, Zhang Y, Chang G, Chen G, Li B. C1EIP Functions as an Activator of ENO1 to Promote Chicken PGCs Formation via Inhibition of the Notch Signaling Pathway. Front Genet 2020; 11:751. [PMID: 32849782 PMCID: PMC7396672 DOI: 10.3389/fgene.2020.00751] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Accepted: 06/23/2020] [Indexed: 12/14/2022] Open
Abstract
The production of germ cells, especially primordial germ cells (PGCs), is important for avian stem cells and reproduction biology. However, key factors involved in the regulation of PGCs remain unknown. Here, we report a PGC-related marker gene: C1EIP (Chromosome 1 Expression in PGCs), whose activation and expression are regulated by the transcription factor STAT3 (signal transducer and activator of transcription 3), histone acetylation, and promoter methylation. C1EIP regulates PGCs formation by mediating the expression of PGC-associated genes, such as CVH (Chicken Vasa Homologous) and CKIT (Chicken KIT proto-oncogene). C1EIP knockdown during embryonic development reduces PGC generation efficiency both in vitro and in ovo. Conversely, C1EIP overexpression increases the formation efficiency of PGCs. C1EIP encodes a cytoplasmic protein that interacts with ENO1 (Enolase 1) in the cytoplasm, inhibits the Notch signaling pathway, and positively regulates PGC generation. Collectively, our findings demonstrate C1EIP as a novel gene involved in PGC formation, which regulates genes involved in embryonic stem cell differentiation through interaction with ENO1 and subsequent inhibition of the Notch signaling pathway by the impression of Myc (MYC proto-oncogene).
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Affiliation(s)
- Kai Jin
- Key Laboratory of Animal Breeding Reproduction and Molecular Design for Jiangsu Province, College of Animal Science and Technology, Yangzhou University, Yangzhou, China.,Institutes of Agricultural Science and Technology Development, Yangzhou University, Yangzhou, China.,Joint International Research Laboratory of Agriculture and Agri-Product Safety of Ministry of Education of China, Yangzhou University, Yangzhou, China
| | - Dong Li
- Reproductive Medicine Center, The Affiliated Drum Tower Hospital of Nanjing University, Medical School, Nanjing, China
| | - Jing Jin
- Key Laboratory of Animal Breeding Reproduction and Molecular Design for Jiangsu Province, College of Animal Science and Technology, Yangzhou University, Yangzhou, China.,Institutes of Agricultural Science and Technology Development, Yangzhou University, Yangzhou, China.,Joint International Research Laboratory of Agriculture and Agri-Product Safety of Ministry of Education of China, Yangzhou University, Yangzhou, China
| | - Jiuzhou Song
- Animal & Avian Sciences, University of Maryland, College Park, College Park, MD, United States
| | - Yani Zhang
- Key Laboratory of Animal Breeding Reproduction and Molecular Design for Jiangsu Province, College of Animal Science and Technology, Yangzhou University, Yangzhou, China.,Institutes of Agricultural Science and Technology Development, Yangzhou University, Yangzhou, China.,Joint International Research Laboratory of Agriculture and Agri-Product Safety of Ministry of Education of China, Yangzhou University, Yangzhou, China
| | - Guobing Chang
- Key Laboratory of Animal Breeding Reproduction and Molecular Design for Jiangsu Province, College of Animal Science and Technology, Yangzhou University, Yangzhou, China.,Institutes of Agricultural Science and Technology Development, Yangzhou University, Yangzhou, China.,Joint International Research Laboratory of Agriculture and Agri-Product Safety of Ministry of Education of China, Yangzhou University, Yangzhou, China
| | - Guohong Chen
- Key Laboratory of Animal Breeding Reproduction and Molecular Design for Jiangsu Province, College of Animal Science and Technology, Yangzhou University, Yangzhou, China.,Institutes of Agricultural Science and Technology Development, Yangzhou University, Yangzhou, China.,Joint International Research Laboratory of Agriculture and Agri-Product Safety of Ministry of Education of China, Yangzhou University, Yangzhou, China
| | - Bichun Li
- Key Laboratory of Animal Breeding Reproduction and Molecular Design for Jiangsu Province, College of Animal Science and Technology, Yangzhou University, Yangzhou, China.,Institutes of Agricultural Science and Technology Development, Yangzhou University, Yangzhou, China.,Joint International Research Laboratory of Agriculture and Agri-Product Safety of Ministry of Education of China, Yangzhou University, Yangzhou, China
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10
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Konoval O, Korol P, Tabaka P, Kostenko S, Lizhi L, Chepiha A, Doroshenko M, Drahulian M, Xingchen B, Xuetao H, Liumeng L. Generation of transgenic ducks by crispr/CAS9-mediated gene inser-tion combined with the sperm-mediated gene transfer (SMGT). ACTA ACUST UNITED AC 2019. [DOI: 10.7124/bc.000a16] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- O. Konoval
- Institute of Animal Husbandry and Veterinary Science, Zhejiang Academy of Agricultural Sciences
- Ukrainian Laboratory of Quality and Safety of Agricultural Products of National University of Life and Environmental Sciences of Ukraine,
| | - P. Korol
- Institute of Animal Breeding and Genetics nd. a. M.V. Zubets of NAAS of Ukraine,
| | - P. Tabaka
- Institute of Animal Husbandry and Veterinary Science, Zhejiang Academy of Agricultural Sciences
| | - S. Kostenko
- National University of Life and Environmental Sciences of Ukraine,
| | - L. Lizhi
- Institute of Animal Husbandry and Veterinary Science, Zhejiang Academy of Agricultural Sciences
| | - A. Chepiha
- National University of Life and Environmental Sciences of Ukraine,
| | - M. Doroshenko
- National University of Life and Environmental Sciences of Ukraine,
| | - M. Drahulian
- National University of Life and Environmental Sciences of Ukraine,
| | - B. Xingchen
- Institute of Animal Husbandry and Veterinary Science, Zhejiang Academy of Agricultural Sciences
| | - H. Xuetao
- Zhuji Guowey Poultry Development Co, Ltd, Ltd
| | - L. Liumeng
- Zhuji Guowey Poultry Development Co, Ltd, Ltd
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11
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Lee BR, Rengaraj D, Choi HJ, Han JY. A novel F-box domain containing cyclin F like gene is required for maintaining the genome stability and survival of chicken primordial germ cells. FASEB J 2019; 34:1001-1017. [PMID: 31914591 DOI: 10.1096/fj.201901294r] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2019] [Revised: 10/25/2019] [Accepted: 11/07/2019] [Indexed: 12/13/2022]
Abstract
The stability and survival of germ cells are controlled by the germline-specific genes, however, such genes are less known in the avian species. Using a microarray-based the National Center for Biotechnology Information Gene Expression Omnibus dataset, we found an unigene (Gga.9721) that upregulated in the chicken primordial germ cells (PGCs). The unigene showed 97% identities with an uncharacterized chicken cyclin F like gene. The predicted chicken cyclin F like gene was further characterized through expression and regulation in the chicken PGCs. The sequence analysis revealed that the gene shows identities with cyclin F gene and contains an F-box domain. The expression of chicken cyclin F like was detected specifically in the gonads, PGCs, and germline cells. The knockdown of cyclin F like gene resulted in DNA damage and apoptosis in the PGCs. The genes related to stemness and germness were downregulated, whereas, genes related to apoptosis and DNA damage response were increased in the PGCs after the knockdown of chicken cyclin F like. We further observed that the Nanog homeobox controlled the transcriptional activity of chicken cyclin F like gene in PGCs. Collectively, the chicken cyclin F like gene, which is not reported in any other species, is required for maintaining the genome stability of germ cells.
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Affiliation(s)
- Bo Ram Lee
- Department of Agricultural Biotechnology, and Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul, Korea.,Animal Biotechnology Division, National Institute of Animal Science, Rural Development Administration, Wanju-gun, Korea
| | - Deivendran Rengaraj
- Department of Agricultural Biotechnology, and Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul, Korea
| | - Hee Jung Choi
- Department of Agricultural Biotechnology, and Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul, Korea
| | - Jae Yong Han
- Department of Agricultural Biotechnology, and Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul, Korea
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12
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Jung KM, Kim YM, Keyte AL, Biegler MT, Rengaraj D, Lee HJ, Mello CV, Velho TAF, Fedrigo O, Haase B, Jarvis ED, Han JY. Identification and characterization of primordial germ cells in a vocal learning Neoaves species, the zebra finch. FASEB J 2019; 33:13825-13836. [DOI: 10.1096/fj.201900760rr] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Kyung Min Jung
- Department of Agricultural BiotechnologyResearch Institute of Agriculture and Life Sciences, College of Agriculture and Life SciencesSeoul National UniversitySeoulSouth Korea
| | - Young Min Kim
- Department of Agricultural BiotechnologyResearch Institute of Agriculture and Life Sciences, College of Agriculture and Life SciencesSeoul National UniversitySeoulSouth Korea
| | - Anna L. Keyte
- Laboratory of Neurogenetics of LanguageThe Rockefeller UniversityNew YorkNew YorkUSA
| | - Matthew T. Biegler
- Laboratory of Neurogenetics of LanguageThe Rockefeller UniversityNew YorkNew YorkUSA
- Department of NeurobiologyDuke University Medical CenterDurhamNorth CarolinaUSA
| | - Deivendran Rengaraj
- Department of Agricultural BiotechnologyResearch Institute of Agriculture and Life Sciences, College of Agriculture and Life SciencesSeoul National UniversitySeoulSouth Korea
| | - Hong Jo Lee
- Department of Agricultural BiotechnologyResearch Institute of Agriculture and Life Sciences, College of Agriculture and Life SciencesSeoul National UniversitySeoulSouth Korea
| | - Claudio V. Mello
- Department Behavioral NeuroscienceOregon Health and Science UniversityPortlandOregonUSA
| | - Tarciso A. F. Velho
- The Division of Biology and Biological EngineeringCalifornia Institute of TechnologyPasadenaCaliforniaUSA
- Brain Institute, Federal University of Rio Grande do NorteNatalBrazil
| | - Olivier Fedrigo
- Laboratory of Vertebrate GenomesThe Rockefeller UniversityNew YorkNew YorkUSA
| | - Bettina Haase
- Laboratory of Vertebrate GenomesThe Rockefeller UniversityNew YorkNew YorkUSA
| | - Erich D. Jarvis
- Laboratory of Neurogenetics of LanguageThe Rockefeller UniversityNew YorkNew YorkUSA
- Department of NeurobiologyDuke University Medical CenterDurhamNorth CarolinaUSA
- Howard Hughes Medical InstituteChevy ChaseMarylandUSA
| | - Jae Yong Han
- Department of Agricultural BiotechnologyResearch Institute of Agriculture and Life Sciences, College of Agriculture and Life SciencesSeoul National UniversitySeoulSouth Korea
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13
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Park YH, Kim YM, Han JY. Germ Cell Transplantation in Avian Species. Methods Mol Biol 2019; 1920:317-326. [PMID: 30737700 DOI: 10.1007/978-1-4939-9009-2_19] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Germ cell transplantation technology has played a critical role in germline modification and preservation of genetic resources. Several germ cell transplantation systems have been developed, including sperm, oocyte, or germline stem cell transplantation systems in mammals. Meanwhile, in avian species, this has mostly relied on primordial germ cell (PGC) transplantation for efficient germline transmission. In this chapter, we describe how to isolate PGCs from avian embryos and produce germline chimeras through transplantation of donor PGCs to recipient embryos.
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Affiliation(s)
- Young Hyun Park
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Sciences, College of Agriculture and Life Sciences, Seoul National University, Seoul, Korea (Republic of)
| | - Young Min Kim
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Sciences, College of Agriculture and Life Sciences, Seoul National University, Seoul, Korea (Republic of)
| | - Jae Yong Han
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Sciences, College of Agriculture and Life Sciences, Seoul National University, Seoul, Korea (Republic of).
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14
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Jung HG, Hwang YS, Park YH, Cho HY, Rengaraj D, Han JY. Role of Epigenetic Regulation by the REST/CoREST/HDAC Corepressor Complex of Moderate NANOG Expression in Chicken Primordial Germ Cells. Stem Cells Dev 2018; 27:1215-1225. [DOI: 10.1089/scd.2018.0059] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Affiliation(s)
- Hyun Gyo Jung
- Department of Agricultural Biotechnology, Research Institute of Agriculture and Life Sciences, College of Agriculture and Life Sciences, Seoul National University, Seoul, Korea
| | - Young Sun Hwang
- Department of Agricultural Biotechnology, Research Institute of Agriculture and Life Sciences, College of Agriculture and Life Sciences, Seoul National University, Seoul, Korea
| | - Young Hyun Park
- Department of Agricultural Biotechnology, Research Institute of Agriculture and Life Sciences, College of Agriculture and Life Sciences, Seoul National University, Seoul, Korea
| | - Ho Yeon Cho
- Department of Agricultural Biotechnology, Research Institute of Agriculture and Life Sciences, College of Agriculture and Life Sciences, Seoul National University, Seoul, Korea
| | - Deivendran Rengaraj
- Department of Agricultural Biotechnology, Research Institute of Agriculture and Life Sciences, College of Agriculture and Life Sciences, Seoul National University, Seoul, Korea
| | - Jae Yong Han
- Department of Agricultural Biotechnology, Research Institute of Agriculture and Life Sciences, College of Agriculture and Life Sciences, Seoul National University, Seoul, Korea
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15
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Abstract
Primordial germ cells (PGCs), precursors of functional gametes, offer great promise for the use of genetic resources and transgenesis in chickens. PGCs can be isolated from the developing embryo at diverse early stages and are subsequently expandable in vitro. In vitro proliferating chicken PGCs can facilitate the production of efficient germline chimeras and transgenic chickens. Here, we describe methods to isolate and characterize PGCs from chicken embryos and their application to transgenesis.
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16
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Long-term in vitro culture and preliminary establishment of chicken primordial germ cell lines. PLoS One 2018; 13:e0196459. [PMID: 29709001 PMCID: PMC5927411 DOI: 10.1371/journal.pone.0196459] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2018] [Accepted: 04/15/2018] [Indexed: 11/19/2022] Open
Abstract
Primordial germ cells (PGCs) are precursors of functional gametes and can be used as efficient transgenic tools and carriers in bioreactors. Few methods for long-term culture of PGCs are available. In this study, we tested various culture conditions for PGCs, and used the optimum culture system to culture chicken gonad PGCs for about three hundred days. Long-term-cultured PGCs were detected and characterized by karyotype analysis, immunocytochemical staining of SSEA-1, c-kit, Sox2, cDAZL, and quantitative RT-PCR for specific genes like Tert, DAZL, POUV, and NANOG. Cultured PGCs labeled with PKH26 were reinjected into Stage X recipient embryos and into the dorsal aorta of Stage 14–17 embryos to assay their ability of migration into the germinal crescent and gonads, respectively. In conclusion, the most suitable culture system for PGCs is as follows: feeder layer cells treated with 20 μg/mL mitomycin C for 2 hours, and with 50% conditioned medium added to the factor culture medium. PGCs cultured in this system retain their pluripotency and the unique ability of migration without transformation, indicating the successful preliminary establishment of chicken primordial germ cell lines and these PGCs can be considered for use as carriers in transgenic bioreactors.
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17
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Hwang YS, Seo M, Lee BR, Lee HJ, Park YH, Kim SK, Lee HC, Choi HJ, Yoon J, Kim H, Han JY. The transcriptome of early chicken embryos reveals signaling pathways governing rapid asymmetric cellularization and lineage segregation. Development 2018; 145:dev.157453. [PMID: 29467246 DOI: 10.1242/dev.157453] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2017] [Accepted: 02/12/2018] [Indexed: 12/15/2022]
Abstract
The phylogenomics and comparative functional genomics of avian species were investigated in the Bird 10,000 Genomes (B10K) project because of the important evolutionary position of birds and their value as a research model. However, the systematic profiling of transcriptional changes prior to oviposition has not been investigated in avian species because of the practical difficulties in obtaining pre-oviposited eggs. In this study, a total of 137 pre-oviposited embryos were collected from hen ovaries and oviducts and subjected to RNA-sequencing analyses. Two waves of chicken zygotic genome activation (ZGA) were observed. Functionally distinct developmental programs involving Notch, MAPK, Wnt and TGFβ signaling were separately detected during cleavage and area pellucida formation. Furthermore, the early stages of chicken development were compared with the human and mouse counterparts, highlighting chicken-specific signaling pathways and gradually analogous gene expression via ZGA. These findings provide a genome-wide understanding of avian embryogenesis and comparisons among amniotes.
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Affiliation(s)
- Young Sun Hwang
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Korea
| | - Minseok Seo
- CHO&KIM Genomics, SNU Research Park, Seoul National University Mt.4-2, Seoul 08826, Korea.,Channing Division of Network Medicine, Harvard Medical School and Brigham and Women's Hospital, Boston, MA 02115, USA
| | - Bo Ram Lee
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Korea
| | - Hong Jo Lee
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Korea
| | - Young Hyun Park
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Korea
| | - Sang Kyung Kim
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Korea
| | - Hyung Chul Lee
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Korea.,Department of Cell and Developmental Biology, University College London, London WC1E 6BT, UK
| | - Hee Jung Choi
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Korea
| | - Joon Yoon
- Interdisciplinary Program in Bioinformatics, Seoul National University, Seoul 08826, Korea
| | - Heebal Kim
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Korea.,CHO&KIM Genomics, SNU Research Park, Seoul National University Mt.4-2, Seoul 08826, Korea.,Institute for Biomedical Sciences, Shinshu University, Minamiminowa, Nagano 399-4598, Japan
| | - Jae Yong Han
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Korea .,Institute for Biomedical Sciences, Shinshu University, Minamiminowa, Nagano 399-4598, Japan
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18
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Kim YM, Park JS, Kim SK, Jung KM, Hwang YS, Han M, Lee HJ, Seo HW, Suh JY, Han BK, Han JY. The transgenic chicken derived anti-CD20 monoclonal antibodies exhibits greater anti-cancer therapeutic potential with enhanced Fc effector functions. Biomaterials 2018; 167:58-68. [PMID: 29554481 DOI: 10.1016/j.biomaterials.2018.03.021] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2017] [Revised: 02/21/2018] [Accepted: 03/12/2018] [Indexed: 12/28/2022]
Abstract
Modern genetic techniques, enable the use of animal bioreactor systems for the production and functional enhancement of anti-cancer antibodies. Chicken is the most efficient animal bioreactor for the production of anti-cancer antibodies because of its relatively short generation time, plentiful reproductive capacity, and daily deposition in the egg white. Although several studies have focused on the production of anti-cancer antibodies in egg white, in-depth studies of the biological activity and physiological characteristics of transgenic chicken-derived anti-cancer antibodies have not been fully carried out. Here, we report the production of an anti-cancer monoclonal antibody against the CD20 protein from egg whites of transgenic hens, and validated the bio-functional activity of the protein in B-lymphoma and B-lymphoblast cells. Quantitative analysis showed that deposition of the chickenised CD20 monoclonal antibody (cCD20 mAb) from transgenic chickens increased in successive generations and with increasing transgene copy number. Ultra-performance liquid chromatography (UPLC) tandem mass spectrometry (LC/MS/MS) analysis showed that the cCD20 mAb exhibited 14 N-glycan patterns with high-mannose, afucosylation and terminal galactosylation. The cCD20 mAb did not exhibit significantly improved Fab-binding affinity, but showed markedly enhanced Fc-related functions, including complement-dependent cytotoxicity (CDC) and antibody-dependent cellular cytotoxicity (ADCC) compared to commercial rituximab, a chimeric mAb against CD20. Our results suggest that the transgenic chicken bioreactor is an efficient system for producing anti-cancer therapeutic antibodies with enhanced Fc effector functions.
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Affiliation(s)
- Young Min Kim
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Sciences, College of Agriculture and Life Sciences, Seoul National University, Seoul, 08826, South Korea
| | - Jin Se Park
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Sciences, College of Agriculture and Life Sciences, Seoul National University, Seoul, 08826, South Korea
| | - Sang Kyung Kim
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Sciences, College of Agriculture and Life Sciences, Seoul National University, Seoul, 08826, South Korea
| | - Kyung Min Jung
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Sciences, College of Agriculture and Life Sciences, Seoul National University, Seoul, 08826, South Korea
| | - Young Sun Hwang
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Sciences, College of Agriculture and Life Sciences, Seoul National University, Seoul, 08826, South Korea
| | - Mookyoung Han
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Sciences, College of Agriculture and Life Sciences, Seoul National University, Seoul, 08826, South Korea
| | - Hong Jo Lee
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Sciences, College of Agriculture and Life Sciences, Seoul National University, Seoul, 08826, South Korea
| | - Hee Won Seo
- Samsung Bioepis Co., Ltd, 107, Cheomdan-daero, Yeonsu-gu, Incheon, 21987, South Korea
| | - Jeong-Yong Suh
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Sciences, College of Agriculture and Life Sciences, Seoul National University, Seoul, 08826, South Korea
| | - Beom Ku Han
- Optipharm Inc, 63, Osongsaengmyeong 6-ro, Cheongju-si, Chungcheongbku-do, South Korea
| | - Jae Yong Han
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Sciences, College of Agriculture and Life Sciences, Seoul National University, Seoul, 08826, South Korea; Institute for Biomedical Sciences, Shinshu University, Minamiminowa, Nagano, 399-4598, Japan.
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19
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Han JY, Park YH. Primordial germ cell-mediated transgenesis and genome editing in birds. J Anim Sci Biotechnol 2018; 9:19. [PMID: 29423217 PMCID: PMC5791193 DOI: 10.1186/s40104-018-0234-4] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2017] [Accepted: 01/10/2018] [Indexed: 12/12/2022] Open
Abstract
Transgenesis and genome editing in birds are based on a unique germline transmission system using primordial germ cells (PGCs), which is quite different from the mammalian transgenic and genome editing system. PGCs are progenitor cells of gametes that can deliver genetic information to the next generation. Since avian PGCs were first discovered in nineteenth century, there have been numerous efforts to reveal their origin, specification, and unique migration pattern, and to improve germline transmission efficiency. Recent advances in the isolation and in vitro culture of avian PGCs with genetic manipulation and genome editing tools enable the development of valuable avian models that were unavailable before. However, many challenges remain in the production of transgenic and genome-edited birds, including the precise control of germline transmission, introduction of exogenous genes, and genome editing in PGCs. Therefore, establishing reliable germline-competent PGCs and applying precise genome editing systems are critical current issues in the production of avian models. Here, we introduce a historical overview of avian PGCs and their application, including improved techniques and methodologies in the production of transgenic and genome-edited birds, and we discuss the future potential applications of transgenic and genome-edited birds to provide opportunities and benefits for humans.
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Affiliation(s)
- Jae Yong Han
- 1Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Sciences, College of Agriculture and Life Sciences, Seoul National University, Seoul, 08826 South Korea.,2Institute for Biomedical Sciences, Shinshu University, Minamiminowa, Nagano, 399-4598 Japan
| | - Young Hyun Park
- 1Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Sciences, College of Agriculture and Life Sciences, Seoul National University, Seoul, 08826 South Korea
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20
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Amini HR, Pakdel A, Shahr-Babak HM, Eghbalsaied S. Developing a puncture-free in ovo chicken transfection strategy based on bypassing albumen nucleases. Theriogenology 2017; 91:90-97. [DOI: 10.1016/j.theriogenology.2016.12.031] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2016] [Revised: 12/10/2016] [Accepted: 12/15/2016] [Indexed: 11/17/2022]
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21
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Jin SD, Lee BR, Hwang YS, Lee HJ, Rim JS, Han JY. Regulatory elements and transcriptional control of chicken vasa homologue ( CVH) promoter in chicken primordial germ cells. J Anim Sci Biotechnol 2017; 8:6. [PMID: 28101336 PMCID: PMC5237207 DOI: 10.1186/s40104-016-0133-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2016] [Accepted: 12/07/2016] [Indexed: 11/20/2022] Open
Abstract
BACKGROUND Primordial germ cells (PGCs), the precursors of functional gametes, have distinct characteristics and exhibit several unique molecular mechanisms to maintain pluripotency and germness in comparison to somatic cells. They express germ cell-specific RNA binding proteins (RBPs) by modulating tissue-specific cis- and trans-regulatory elements. Studies on gene structures of chicken vasa homologue (CVH), a chicken RNA binding protein, involved in temporal and spatial regulation are thus important not only for understanding the molecular mechanisms that regulate germ cell fate, but also for practical applications of primordial germ cells. However, very limited studies are available on regulatory elements that control germ cell-specific expression in chicken. Therefore, we investigated the intricate regulatory mechanism(s) that governs transcriptional control of CVH. RESULTS We constructed green fluorescence protein (GFP) or luciferase reporter vectors containing the various 5' flanking regions of CVH gene. From the 5' deletion and fragmented assays in chicken PGCs, we have identified a CVH promoter that locates at -316 to +275 base pair fragment with the highest luciferase activity. Additionally, we confirmed for the first time that the 5' untranslated region (UTR) containing intron 1 is required for promoter activity of the CVH gene in chicken PGCs. Furthermore, using a transcription factor binding prediction, transcriptome analysis and siRNA-mediated knockdown, we have identified that a set of transcription factors play a role in the PGC-specific CVH gene expression. CONCLUSIONS These results demonstrate that cis-elements and transcription factors localizing in the 5' flanking region including the 5' UTR and an intron are important for transcriptional regulation of the CVH gene in chicken PGCs. Finally, this information will contribute to research studies in areas of reproductive biology, constructing of germ cell-specific synthetic promoter for tracing primordial germ cells as well as understanding the transcriptional regulation for maintaining germness in PGCs.
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Affiliation(s)
- So Dam Jin
- Department of Agricultural Biotechnology, Research Institute of Agriculture and Life Sciences, College of Agriculture and Life Sciences, Seoul National University, Seoul, 08826 South Korea
| | - Bo Ram Lee
- Department of Agricultural Biotechnology, Research Institute of Agriculture and Life Sciences, College of Agriculture and Life Sciences, Seoul National University, Seoul, 08826 South Korea
| | - Young Sun Hwang
- Department of Agricultural Biotechnology, Research Institute of Agriculture and Life Sciences, College of Agriculture and Life Sciences, Seoul National University, Seoul, 08826 South Korea
| | - Hong Jo Lee
- Department of Agricultural Biotechnology, Research Institute of Agriculture and Life Sciences, College of Agriculture and Life Sciences, Seoul National University, Seoul, 08826 South Korea
| | - Jong Seop Rim
- Department of Agricultural Biotechnology, Research Institute of Agriculture and Life Sciences, College of Agriculture and Life Sciences, Seoul National University, Seoul, 08826 South Korea
| | - Jae Yong Han
- Department of Agricultural Biotechnology, Research Institute of Agriculture and Life Sciences, College of Agriculture and Life Sciences, Seoul National University, Seoul, 08826 South Korea
- Institute for Biomedical Sciences, Shinshu University, Minamiminowa, Nagano 399-4598 Japan
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22
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Wnt/β-catenin signaling pathway activation is required for proliferation of chicken primordial germ cells in vitro. Sci Rep 2016; 6:34510. [PMID: 27687983 PMCID: PMC5062643 DOI: 10.1038/srep34510] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2016] [Accepted: 09/14/2016] [Indexed: 12/30/2022] Open
Abstract
Here, we investigated the role of the Wnt/β-catenin signaling pathway in chicken primordial germ cells (PGCs) in vitro. We confirmed the expression of Wnt signaling pathway-related genes and the localization of β-catenin in the nucleus, revealing that this pathway is potentially activated in chicken PGCs. Then, using the single-cell pick-up assay, we examined the proliferative capacity of cultured PGCs in response to Wnt ligands, a β-catenin-mediated Wnt signaling activator (6-bromoindirubin-3′-oxime [BIO]) or inhibitor (JW74), in the presence or absence of basic fibroblast growth factor (bFGF). WNT1, WNT3A, and BIO promoted the proliferation of chicken PGCs similarly to bFGF, whereas JW74 inhibited this proliferation. Meanwhile, such treatments in combination with bFGF did not show a synergistic effect. bFGF treatment could not rescue PGC proliferation in the presence of JW74. In addition, we confirmed the translocation of β-catenin into the nucleus by the addition of bFGF after JW74 treatment. These results indicate that there is signaling crosstalk between FGF and Wnt, and that β-catenin acts on PGC proliferation downstream of bFGF. In conclusion, our study suggests that Wnt signaling enhances the proliferation of chicken PGCs via the stabilization of β-catenin and activation of its downstream genes.
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23
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Pérez Sáez JM, Bussmann LE, Barañao JL, Bussmann UA. Improvement of Chicken Primordial Germ Cell Maintenance In Vitro by Blockade of the Aryl Hydrocarbon Receptor Endogenous Activity. Cell Reprogram 2016; 18:154-61. [PMID: 27253627 PMCID: PMC4900192 DOI: 10.1089/cell.2016.0015] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Primordial germ cells (PGCs) are the undifferentiated progenitors of gametes. Germline competent PGCs can be developed as a cell-based system for genetic modification in chickens, which provides a valuable tool for transgenic technology with both research and industrial applications. This implies manipulation of PGCs, which, in recent years, encouraged a lot of research focused on the study of PGCs and the way of improving their culture. The aryl hydrocarbon receptor (AHR) is a ligand-activated transcription factor that besides mediating toxic responses to environmental contaminants plays pivotal physiological roles in various biological processes. Since a novel compound that acts as an antagonist of this receptor has been reported to promote expansion of hematopoietic stem cells, we conducted the present study with the aim of determining whether addition of an established AHR antagonist to the standard culture medium used nowadays for in vitro chicken PGCs culture improves ex vivo expansion. We have found that addition of α-naphthoflavone in culture medium promotes the amplification of undifferentiated cells and that this effect is exerted by the blockade of AHR action. Our results constitute the first report of the successful use of a readily available AHR antagonist to improve avian PGCs expansion, and they further extend the knowledge of the effects of AHR modulation in undifferentiated cells.
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Affiliation(s)
- Juan M. Pérez Sáez
- Instituto de Biología y Medicina Experimental-CONICET, Buenos Aires, Argentina
| | | | - J. Lino Barañao
- Instituto de Biología y Medicina Experimental-CONICET, Buenos Aires, Argentina
- Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Ursula A. Bussmann
- Instituto de Biología y Medicina Experimental-CONICET, Buenos Aires, Argentina
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24
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Abstract
Germ cells are the only cell type in the body that can transfer genetic information to the next generation. Germline-competent stem cells can self-renew and contribute to the germ cell lineage giving rise to pluripotent stem cells under specific conditions. Hence far, studies on germline-competent stem cells have contributed to the generation of avian model systems and the conservation of avian genetic resources. In this review, we focus on previous studies on germline-competent stem cells from avian species, mainly chicken germline-competent stem cells, which have been well established and characterized. We discuss different sources of germline-competent stem cells and recent advances for the future applications in birds.
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Affiliation(s)
- Jae Yong Han
- Department of Agricultural Biotechnology, College of Agriculture and Life Sciences, and Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul-151 921, Korea
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25
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Doran TJ, Cooper CA, Jenkins KA, Tizard MLV. Advances in genetic engineering of the avian genome: "Realising the promise". Transgenic Res 2016; 25:307-19. [PMID: 26820412 DOI: 10.1007/s11248-016-9926-8] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2015] [Accepted: 01/06/2016] [Indexed: 10/22/2022]
Abstract
This review provides an historic perspective of the key steps from those reported at the 1st Transgenic Animal Research Conference in 1997 through to the very latest developments in avian transgenesis. Eighteen years later, on the occasion of the 10th conference in this series, we have seen breakthrough advances in the use of viral vectors and transposons to transform the germline via the direct manipulation of the chicken embryo, through to the establishment of PGC cultures allowing in vitro modification, expansion into populations to analyse the genetic modifications and then injection of these cells into embryos to create germline chimeras. We have now reached an unprecedented time in the history of chicken transgenic research where we have the technology to introduce precise, targeted modifications into the chicken genome, ranging from; new transgenes that provide improved phenotypes such as increased resilience to economically important diseases; the targeted disruption of immunoglobulin genes and replacement with human sequences to generate transgenic chickens that express "humanised" antibodies for biopharming; and the deletion of specific nucleotides to generate targeted gene knockout chickens for functional genomics. The impact of these advances is set to be realised through applications in chickens, and other bird species as models in scientific research, for novel biotechnology and to protect and improve agricultural productivity.
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Affiliation(s)
- Timothy J Doran
- Australian Animal Health Laboratory, CSIRO Health and Biosecurity, Private Bag 24, Geelong, VIC, 3220, Australia.
| | - Caitlin A Cooper
- Australian Animal Health Laboratory, CSIRO Health and Biosecurity, Private Bag 24, Geelong, VIC, 3220, Australia
| | - Kristie A Jenkins
- Australian Animal Health Laboratory, CSIRO Health and Biosecurity, Private Bag 24, Geelong, VIC, 3220, Australia
| | - Mark L V Tizard
- Australian Animal Health Laboratory, CSIRO Health and Biosecurity, Private Bag 24, Geelong, VIC, 3220, Australia
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26
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Viable pluripotent chick blastodermal cells can be maintained long term in an alkaline defined medium. In Vitro Cell Dev Biol Anim 2015; 52:385-94. [DOI: 10.1007/s11626-015-9989-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2015] [Accepted: 12/09/2015] [Indexed: 10/22/2022]
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27
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Lee HJ, Lee HC, Kim YM, Hwang YS, Park YH, Park TS, Han JY. Site-specific recombination in the chicken genome using Flipase recombinase-mediated cassette exchange. FASEB J 2015; 30:555-63. [PMID: 26443821 DOI: 10.1096/fj.15-274712] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2015] [Accepted: 09/21/2015] [Indexed: 11/11/2022]
Abstract
Targeted genome recombination has been applied in diverse research fields and has a wide range of possible applications. In particular, the discovery of specific loci in the genome that support robust and ubiquitous expression of integrated genes and the development of genome-editing technology have facilitated rapid advances in various scientific areas. In this study, we produced transgenic (TG) chickens that can induce recombinase-mediated gene cassette exchange (RMCE), one of the site-specific recombination technologies, and confirmed RMCE in TG chicken-derived cells. As a result, we established TG chicken lines that have, Flipase (Flp) recognition target (FRT) pairs in the chicken genome, mediated by piggyBac transposition. The transgene integration patterns were diverse in each TG chicken line, and the integration diversity resulted in diverse levels of expression of exogenous genes in each tissue of the TG chickens. In addition, the replaced gene cassette was expressed successfully and maintained by RMCE in the FRT predominant loci of TG chicken-derived cells. These results indicate that targeted genome recombination technology with RMCE could be adaptable to TG chicken models and that the technology would be applicable to specific gene regulation by cis-element insertion and customized expression of functional proteins at predicted levels without epigenetic influence.
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Affiliation(s)
- Hong Jo Lee
- *Department of Agricultural Biotechnology, College of Agriculture and Life Sciences, Seoul National University, Seoul, Korea; Graduate School of International Agricultural Technology, and Institute of Green-Bio Science and Technology, Seoul National University, Pyeongchang-gun, Gangwon-do, Korea; and Institute for Biomedical Sciences, Shinshu University, Kamiina, Nagano, Japan
| | - Hyung Chul Lee
- *Department of Agricultural Biotechnology, College of Agriculture and Life Sciences, Seoul National University, Seoul, Korea; Graduate School of International Agricultural Technology, and Institute of Green-Bio Science and Technology, Seoul National University, Pyeongchang-gun, Gangwon-do, Korea; and Institute for Biomedical Sciences, Shinshu University, Kamiina, Nagano, Japan
| | - Young Min Kim
- *Department of Agricultural Biotechnology, College of Agriculture and Life Sciences, Seoul National University, Seoul, Korea; Graduate School of International Agricultural Technology, and Institute of Green-Bio Science and Technology, Seoul National University, Pyeongchang-gun, Gangwon-do, Korea; and Institute for Biomedical Sciences, Shinshu University, Kamiina, Nagano, Japan
| | - Young Sun Hwang
- *Department of Agricultural Biotechnology, College of Agriculture and Life Sciences, Seoul National University, Seoul, Korea; Graduate School of International Agricultural Technology, and Institute of Green-Bio Science and Technology, Seoul National University, Pyeongchang-gun, Gangwon-do, Korea; and Institute for Biomedical Sciences, Shinshu University, Kamiina, Nagano, Japan
| | - Young Hyun Park
- *Department of Agricultural Biotechnology, College of Agriculture and Life Sciences, Seoul National University, Seoul, Korea; Graduate School of International Agricultural Technology, and Institute of Green-Bio Science and Technology, Seoul National University, Pyeongchang-gun, Gangwon-do, Korea; and Institute for Biomedical Sciences, Shinshu University, Kamiina, Nagano, Japan
| | - Tae Sub Park
- *Department of Agricultural Biotechnology, College of Agriculture and Life Sciences, Seoul National University, Seoul, Korea; Graduate School of International Agricultural Technology, and Institute of Green-Bio Science and Technology, Seoul National University, Pyeongchang-gun, Gangwon-do, Korea; and Institute for Biomedical Sciences, Shinshu University, Kamiina, Nagano, Japan
| | - Jae Yong Han
- *Department of Agricultural Biotechnology, College of Agriculture and Life Sciences, Seoul National University, Seoul, Korea; Graduate School of International Agricultural Technology, and Institute of Green-Bio Science and Technology, Seoul National University, Pyeongchang-gun, Gangwon-do, Korea; and Institute for Biomedical Sciences, Shinshu University, Kamiina, Nagano, Japan
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Lee HJ, Lee HC, Han JY. Germline Modification and Engineering in Avian Species. Mol Cells 2015; 38:743-9. [PMID: 26333275 PMCID: PMC4588716 DOI: 10.14348/molcells.2015.0225] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2015] [Revised: 08/26/2015] [Accepted: 08/27/2015] [Indexed: 12/21/2022] Open
Abstract
Production of genome-edited animals using germline-competent cells and genetic modification tools has provided opportunities for investigation of biological mechanisms in various organisms. The recently reported programmed genome editing technology that can induce gene modification at a target locus in an efficient and precise manner facilitates establishment of animal models. In this regard, the demand for genome-edited avian species, which are some of the most suitable model animals due to their unique embryonic development, has also increased. Furthermore, germline chimera production through long-term culture of chicken primordial germ cells (PGCs) has facilitated research on production of genome-edited chickens. Thus, use of avian germline modification is promising for development of novel avian models for research of disease control and various biological mechanisms. Here, we discuss recent progress in genome modification technology in avian species and its applications and future strategies.
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Affiliation(s)
- Hong Jo Lee
- Department of Agricultural Biotechnology, College of Agriculture and Life Sciences, and Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul 151-921,
Korea
| | - Hyung Chul Lee
- Department of Cell and Developmental Biology, University College London, Gower Street, London WC1E 6BT,
UK
| | - Jae Yong Han
- Department of Agricultural Biotechnology, College of Agriculture and Life Sciences, and Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul 151-921,
Korea
- Institute for Biomedical Sciences, Shinshu University, 8304 Minamiminowa, Kamiina, Nagano 399-4598,
Japan
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Sohn YA, Lee SI, Choi HJ, Kim HJ, Kim KH, Park TS, Han JY. The CCAAT element in the CIWI promoter regulates transcriptional initiation in chicken primordial germ cells. Mol Reprod Dev 2014; 81:871-82. [PMID: 25196532 DOI: 10.1002/mrd.22356] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2014] [Accepted: 06/27/2014] [Indexed: 01/01/2023]
Abstract
The P-element-induced wimpy testis (PIWI) protein, which associates with small non-coding RNAs, is responsible for maintaining the integrity of germ cells and stem cells. Thus, transcriptional regulation of PIWI is critical for its effective functional modulation. In this study, we identified the promoter region of the PIWI homolog in chicken (CIWI), and investigated the transcriptional regulatory elements that control expression of CIWI in chicken primordial germ cells (PGCs). We constructed a vector that included the enhanced green fluorescent protein (eGFP) gene controlled by the 4-kb CIWI promoter. The vector was expressed in chicken PGCs, but not in chicken embryonic fibroblasts. Based on promoter deletion and fragmentation assays, we found that a 252-bp fragment of the CIWI promoter (-577 to -326 bp) was crucial for CIWI expression in PGCs. A CCAAT transcriptional regulatory element (-498 to -494 bp) was detected in the proximal region from the transcription initiation site of CIWI, and mutational analysis confirmed that this element regulates transcriptional initiation in chicken PGCs. Interestingly, the regions flanking the CCAAT element, which are positioned differently in HIWI (human), Miwi (mouse), and CIWI orthologs, were highly conserved. In addition, we predicted that specificity protein 1 (SP1) motifs modulate the transcriptional initiation of CIWI by binding to the 5'-flanking regions of the CCAAT box. Overall, 252 bp of the CIWI promoter possessing the transcriptional regulatory element CCAAT is crucial for regulating CIWI gene expression in chicken PGCs. This promoter may be applicable for the regulation of CIWI expression during germ-cell development.
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Affiliation(s)
- Yoon Ah Sohn
- Department of Agricultural Biotechnology, College of Agriculture and Life Sciences, Seoul National University, Seoul, Korea
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Yu P, Lu Y, Jordan BJ, Liu Y, Yang JY, Hutcheson JM, Ethridge CL, Mumaw JL, Kinder HA, Beckstead RB, Stice SL, West FD. Nonviral minicircle generation of induced pluripotent stem cells compatible with production of chimeric chickens. Cell Reprogram 2014; 16:366-78. [PMID: 25084370 DOI: 10.1089/cell.2014.0028] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Chickens are vitally important in numerous countries as a primary food source and a major component of economic development. Efforts have been made to produce transgenic birds through pluripotent stem cell [primordial germ cells and embryonic stem cells (ESCs)] approaches to create animals with improved traits, such as meat and egg production or even disease resistance. However, these cell types have significant limitations because they are hard to culture long term while maintaining developmental plasticity. Induced pluripotent stem cells (iPSCs) are a novel class of stem cells that have proven to be robust, leading to the successful development of transgenic mice, rats, quail, and pigs and may potentially overcome the limitations of previous pluripotent stem cell systems in chickens. In this study we generated chicken (c) iPSCs from fibroblast cells for the first time using a nonviral minicircle reprogramming approach. ciPSCs demonstrated stem cell morphology and expressed key stem cell markers, including alkaline phosphatase, POU5F1, SOX2, NANOG, and SSEA-1. These cells were capable of rapid growth and expressed high levels of telomerase. Late-passage ciPSCs transplanted into stage X embryos were successfully incorporated into tissues of all three germ layers, and the gonads demonstrated significant cellular plasticity. These cells provide an exciting new tool to create transgenic chickens with broad implications for agricultural and transgenic animal fields at large.
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Affiliation(s)
- Ping Yu
- 1 Regenerative Bioscience Center, University of Georgia , Athens, GA, 30602
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Shin S, Choi YM, Han JY, Lee K. Inhibition of lipolysis in the novel transgenic quail model overexpressing G0/G1 switch gene 2 in the adipose tissue during feed restriction. PLoS One 2014; 9:e100905. [PMID: 24964090 PMCID: PMC4071008 DOI: 10.1371/journal.pone.0100905] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2013] [Accepted: 05/27/2014] [Indexed: 12/05/2022] Open
Abstract
In addition to the issue of obesity in humans, the production of low-fat meat from domestic animals is important in the agricultural industry to satisfy consumer demand. Understanding the regulation of lipolysis in adipose tissue could advance our knowledge to potentially solve both issues. Although the G0/G1 switch gene 2 (G0S2) was recently identified as an inhibitor of adipose triglyceride lipase (ATGL) in vitro, its role in vivo has not been fully clarified. This study was conducted to investigate the role of G0S2 gene in vivo by using two independent transgenic quail lines during different energy conditions. Unexpectedly, G0S2 overexpression had a negligible effect on plasma NEFA concentration, fat cell size and fat pad weight under ad libitum feeding condition when adipose lipolytic activity is minimal. A two-week feed restriction in non-transgenic quail expectedly caused increased plasma NEFA concentration and dramatically reduced fat cell size and fat pad weight. Contrary, G0S2 overexpression under a feed restriction resulted in a significantly less elevation of plasma NEFA concentration and smaller reductions in fat pad weights and fat cell size compared to non-transgenic quail, demonstrating inhibition of lipolysis and resistance to loss of fat by G0S2. Excessive G0S2 inhibits lipolysis in vivo during active lipolytic conditions, such as food restriction and fasting, suggesting G0S2 as a potential target for treatment of obesity. In addition, transgenic quail are novel models for studying lipid metabolism and mechanisms of obesity.
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Affiliation(s)
- Sangsu Shin
- Department of Animal Sciences, The Ohio State University, Columbus, Ohio, United States of America
| | - Young Min Choi
- Department of Animal Sciences, The Ohio State University, Columbus, Ohio, United States of America
| | - Jae Yong Han
- World Class University Biomodulation Major, Department of Agricultural Biotechnology, Research Institute for Agriculture and Life Sciences, College of Agriculture and Life Sciences, Seoul National University, Seoul, Korea
| | - Kichoon Lee
- Department of Animal Sciences, The Ohio State University, Columbus, Ohio, United States of America
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Shimada K, Ono T, Mizushima S. Application of intracytoplasmic sperm injection (ICSI) for fertilization and development in birds. Gen Comp Endocrinol 2014; 196:100-5. [PMID: 24239795 DOI: 10.1016/j.ygcen.2013.11.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/29/2012] [Revised: 10/22/2013] [Accepted: 11/01/2013] [Indexed: 11/16/2022]
Abstract
Intracytoplasmic sperm injection (ICSI) technology in birds has been hampered due to opacity of oocyte. We developed ICSI-assisted fertilization and gene transfer in quail. This paper reviews recent advances of our ICSI experiments. The oocyte retrieved from the oviduct and a quail sperm was injected into the oocyte under a stereomicroscope. The oocyte was cultured for 24h at 41°C under 5% CO2 in air. The fertilization and development was assessed by microscopic observation. The fertility rate ranged 12-18% and development varied from stage II to V in trials. To improve the fertility rate, phospholipase C (PLC) zeta was injected with a sperm. It was increased to 37-50%. Furthermore, injection of inositol trisphosphate increased to over 85%. Quail oocyte can be fertilized with chicken sperm and so can testicular elongated spermatid. To extend embryonic development, chicken eggshell was used as a surrogate culture at 37°C after the 24h incubation at 41°C under 5% CO2 in air. It survived up to 2days thereafter. Finally, gene transfer was attempted in quail egg. The sperm membrane was disrupted with Triton X-100 (TX-100) and was injected with PLCzeta cRNA and enhanced green fluorescent protein (EGFP) gene in oocyte. The GFP expression was evaluated at 24h incubation at 41°C under 5% CO2 in air in the embryos. While the expression was not detected in the control oocytes, the experimental treatment induced blastoderm development (44%) of the oocytes and 86% of blastoderm showed fluorescent emission. In addition, PCR analysis detected EGFP fragments in 50% of GFP-expressing blastoderm. Our ICSI method may be the first step toward the production of transgenic birds.
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Affiliation(s)
- Kiyoshi Shimada
- WCU, Major in Biomodulation, College of Agriculture and Life Sciences, Seoul National University, 599 Gwanak-ro, Gwanak-gu, Seoul 151-921, South Korea.
| | - Tamao Ono
- Faculty of Agriculture, Shinshu University, Kamiina, Nagano 399-4598, Japan
| | - Shusei Mizushima
- Department of Applied Biological Chemistry, Faculty of Agriculture, Shizuoka University, Ohya, Shizuoka 422-8529, Japan
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Ramachandran R. Current and future reproductive technologies for avian species. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2014; 752:23-31. [PMID: 24170353 DOI: 10.1007/978-1-4614-8887-3_2] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
The global demand for poultry meat and eggs is expected to increase exponentially in the next several decades. Increasing global poultry production in the future would require significant improvements in genetics, nutrition, and managerial practices including reproduction. This chapter summarizes some of the recent developments in ameliorating reproductive dysfunction in broiler breeder chickens, cryopreservation of avian spermatozoa, sex selection, and avian transgenesis.
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Affiliation(s)
- Ramesh Ramachandran
- Department of Animal Science, Center for Reproductive Biology and Health, The Pennsylvania State University, 211 Henning Building, University Park, PA, 16802, USA,
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35
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Brison N, Debeer P, Tylzanowski P. Joining the fingers: AHOXD13story. Dev Dyn 2013; 243:37-48. [DOI: 10.1002/dvdy.24037] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2013] [Revised: 06/27/2013] [Accepted: 07/01/2013] [Indexed: 12/21/2022] Open
Affiliation(s)
- Nathalie Brison
- Center for Human Genetics; University Hospitals Leuven, University of Leuven; Belgium
| | - Philippe Debeer
- Department of Development and Regeneration; University of Leuven; Belgium
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Lee H, Kim S, Park T, Rengaraj D, Park K, Lee H, Park SB, Kim S, Choi SB, Han J. Compensatory proliferation of endogenous chicken primordial germ cells after elimination by busulfan treatment. Stem Cell Res Ther 2013; 4:136. [PMID: 24405696 PMCID: PMC4028881 DOI: 10.1186/scrt347] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2013] [Accepted: 10/29/2013] [Indexed: 11/22/2022] Open
Abstract
Introduction Primordial germ cells (PGCs) are the major population of cells in the developing bilateral embryonic gonads. Little is known about the cellular responses of PGCs after treatment with toxic chemicals such as busulfan during embryo development. In this study, we investigated the elimination, restorative ability, and cell cycle status of endogenous chicken PGCs after busulfan treatment. Methods Busulfan was emulsified in sesame oil by a dispersion-emulsifying system and injected into the chick blastoderm (embryonic stage X). Subsequently, we conducted flow cytometry analysis to evaluate changes in the PGC population and cell cycle status, and immunohistochemistry to examine the germ cell proliferation. Results Results of flow cytometry and immunohistochemistry analyses after busulfan treatment showed that the proportion of male PGCs at embryonic day 9 and female PGCs at embryonic day 7 were increased by approximately 60% when compared with embryonic day 5.5. This result suggests the existence of a compensatory mechanism in PGCs in response to the cytotoxic effects of busulfan. Results of cell cycling analysis showed that the germ cells in the G0/G1 phase were significantly decreased, while S/G2/M-phase germ cells were significantly increased in the treatment group compared with the untreated control group in both 9-day-old male and female embryos. In addition, in the proliferation analysis with 5-ethynyl-2′-deoxyuridine (EdU) incorporation, we found that the proportion of EdU-positive cells among VASA homolog-positive cells in the 9-day embryonic gonads of the busulfan-treated group was significantly higher than in the control group. Conclusions We conclude that PGCs enter a restoration pathway by promoting their cell cycle after experiencing a cytotoxic effect.
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Chick stem cells: current progress and future prospects. Stem Cell Res 2013; 11:1378-92. [PMID: 24103496 PMCID: PMC3989061 DOI: 10.1016/j.scr.2013.09.005] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/07/2013] [Revised: 09/06/2013] [Accepted: 09/13/2013] [Indexed: 12/15/2022] Open
Abstract
Chick embryonic stem cells (cESCs) can be derived from cells obtained from stage X embryos (blastoderm stage); these have the ability to contribute to all somatic lineages in chimaeras, but not to the germ line. However, lines of stem cells that are able to contribute to the germ line can be established from chick primordial germ cells (cPGCs) and embryonic germ cells (cEGCs). This review provides information on avian stem cells, emphasizing different sources of cells and current methods for derivation and culture of pluripotent cells from chick embryos. We also review technologies for isolation and derivation of chicken germ cells and the production of transgenic birds. Chick embryonic stem cells (cESCs) can be derived from a variety of sources. cESCs can contribute to all somatic cell types but not to the germ line. germ cells can be isolated from early embryos, embryonic blood and gonads. germ cells can establish self-renewing lines and contribute to the germline.
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Naeemipour M, Dehghani H, Bassami M, Bahrami A. Expression dynamics of pluripotency genes in chicken primordial germ cells before and after colonization of the genital ridges. Mol Reprod Dev 2013; 80:849-61. [PMID: 23877993 DOI: 10.1002/mrd.22216] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2013] [Accepted: 07/12/2013] [Indexed: 01/24/2023]
Abstract
Mammalian species utilize an inductive mechanism of germ cell specification, diverting the fate of some of somatic cells toward pluripotency and germ-cell totipotency. It is not known if avian species utilize a similar mechanism nor if, analogous to mammalian primordial germ cells (PGCs), pluripotency genes are continuously upregulated in migrating and genital ridge-colonizing avian PGCs. Thus, this study was conducted to quantify and to analyze the expression profile of pluripotency genes at different stages of chicken PGCs development at Hamburger and Hamilton (HH) stage 14, when the majority of PGCs have entered into the bloodstream; at HH stage 18, when PGCs have resided for 8-12 hr in the bloodstream; and at HH stage 28, when the majority of PGCs are found in the genital ridge. The transcription for Oct4, Sox2, and Nanog continuously decreased from HH stage 14 to HH stage 28. In addition, equal amounts of total RNA could be isolated from chicken PGCs at each stage of development, indicating that the observed drop of transcription of pluripotency genes is not a consequence of transcriptional repression in general. Decreased expression for all three proteins was also observed at HH stage 28. Furthermore, in comparison to blood PGCs, those residing in the gonad have lost their full capacity for colony formation. Our results indicate that, in contrast to mammalian PGCs, chicken PGCs continuously downregulate the expression of pluripotency genes and show a progressive loss of pluripotency-associated features during different stages of germ-line migration.
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Affiliation(s)
- Mohsen Naeemipour
- Department of Basic Science, Faculty of Veterinary Medicine, Ferdowsi University of Mashhad, Mashhad, Iran
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Pereira RJ, Napolitano A, Garcia-Pereira FL, Baldo CF, Suhr ST, King LE, Cibelli JB, Karcher DM, McNiel EA, Perez GI. Conservation of Avian Germplasm by Xenogeneic Transplantation of Spermatogonia from Sexually Mature Donors. Stem Cells Dev 2013; 22:735-49. [DOI: 10.1089/scd.2012.0497] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Affiliation(s)
- Ricardo J.G. Pereira
- Departamento de Reprodução Animal, Faculdade de Medicina Veterinária e Zootecnia da Universidade de São Paulo, São Paulo, Brazil
- Department of Physiology, Michigan State University, East Lansing, Michigan
| | - Angelo Napolitano
- Poultry Research and Teaching Center, Michigan State University, East Lansing, Michigan
| | - Fernando L. Garcia-Pereira
- Small Animal Clinical Sciences, D208 Veterinary Medical Center, College of Veterinary Medicine, Michigan State University, East Lansing, Michigan
| | - Caroline F. Baldo
- Small Animal Clinical Sciences, D208 Veterinary Medical Center, College of Veterinary Medicine, Michigan State University, East Lansing, Michigan
| | - Steven T. Suhr
- Department of Animal Sciences, Michigan State University, East Lansing, Michigan
| | - Louis E. King
- Department of Biochemistry, Michigan State University, East Lansing, Michigan
| | - Jose B. Cibelli
- Department of Physiology, Michigan State University, East Lansing, Michigan
- Department of Animal Sciences, Michigan State University, East Lansing, Michigan
- Andalusian Laboratory of Cellular Reprogramming, LARCEL, Seville, Spain
| | - Darrin M. Karcher
- Department of Animal Sciences, Michigan State University, East Lansing, Michigan
| | - Elizabeth A. McNiel
- Small Animal Clinical Sciences, D208 Veterinary Medical Center, College of Veterinary Medicine, Michigan State University, East Lansing, Michigan
| | - Gloria I. Perez
- Department of Physiology, Michigan State University, East Lansing, Michigan
- Andalusian Laboratory of Cellular Reprogramming, LARCEL, Seville, Spain
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Zhang Z, Sun P, Yu F, Yan L, Yuan F, Zhang W, Wang T, Wan Z, Shao Q, Li Z. Transgenic quail production by microinjection of lentiviral vector into the early embryo blood vessels. PLoS One 2012; 7:e50817. [PMID: 23251391 PMCID: PMC3520935 DOI: 10.1371/journal.pone.0050817] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2011] [Accepted: 10/29/2012] [Indexed: 12/02/2022] Open
Abstract
Several strategies have been used to generate transgenic birds. The most successful method so far has been the injection of lentiviral vectors into the subgerminal cavity of a newly laid egg. We report here a new, easy and effective way to produce transgenic quails through direct injection of a lentiviral vector, containing an enhanced-green fluorescent protein (eGFP) transgene, into the blood vessels of quail embryos at Hamburger-Hamilton stage 13-15 (HH13-15). A total of 80 embryos were injected and 48 G0 chimeras (60%) were hatched. Most injected embryo organs and tissues of hatched quails were positive for eGFP. In five out of 21 mature G0 male quails, the semen was eGFP-positive, as detected by polymerase chain reaction (PCR), indicating transgenic germ line chimeras. Testcross and genetic analyses revealed that the G0 quail produced transgenic G1 offspring; of 46 G1 hatchlings, 6 were transgenic (6/46, 13.0%). We also compared this new method with the conventional transgenesis using stage X subgerminal cavity injection. Total 240 quail embryos were injected by subgerminal cavity injection, of which 34 (14.1%) were hatched, significantly lower than the new method. From these hatched quails semen samples were collected from 19 sexually matured males and tested for the transgene by PCR. The transgene was present in three G0 male quails and only 4/236 G1 offspring (1.7%) were transgenic. In conclusion, we developed a novel bird transgenic method by injection of lentiviral vector into embryonic blood vessel at HH 13-15 stage, which result in significant higher transgenic efficiency than the conventional subgerminal cavity injection.
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Affiliation(s)
- Zifu Zhang
- State Key Laboratories for Agrobiotechnology, China Agricultural University, Beijing, China
| | - Peng Sun
- Beijing Education Examinations Authority, Beijing, China
| | - Fuxian Yu
- State Key Laboratories for Agrobiotechnology, China Agricultural University, Beijing, China
| | - Li Yan
- State Key Laboratories for Agrobiotechnology, China Agricultural University, Beijing, China
| | - Fang Yuan
- State Key Laboratories for Agrobiotechnology, China Agricultural University, Beijing, China
| | - Wenxin Zhang
- State Key Laboratories for Agrobiotechnology, China Agricultural University, Beijing, China
| | - Tao Wang
- State Key Laboratories for Agrobiotechnology, China Agricultural University, Beijing, China
| | - Zhiyi Wan
- State Key Laboratories for Agrobiotechnology, China Agricultural University, Beijing, China
| | - Qiang Shao
- State Key Laboratories for Agrobiotechnology, China Agricultural University, Beijing, China
| | - Zandong Li
- State Key Laboratories for Agrobiotechnology, China Agricultural University, Beijing, China
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Lim CH, Jeong W, Lim W, Kim J, Song G, Bazer FW. Differential Expression of Select Members of the SLC Family of Genes and Regulation of Expression by MicroRNAs in the Chicken Oviduct1. Biol Reprod 2012; 87:145. [DOI: 10.1095/biolreprod.112.101444] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
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Rengaraj D, Lee BR, Jang HJ, Kim YM, Han JY. Comparative metabolic pathway analysis with special reference to nucleotide metabolism-related genes in chicken primordial germ cells. Theriogenology 2012; 79:28-39. [PMID: 23102846 DOI: 10.1016/j.theriogenology.2012.09.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2012] [Revised: 09/01/2012] [Accepted: 09/06/2012] [Indexed: 01/17/2023]
Abstract
Metabolism provides energy and nutrients required for the cellular growth, maintenance, and reproduction. When compared with genomics and proteomics, metabolism studies provide novel findings in terms of cellular functions. In this study, we examined significant and differentially expressed genes in primordial germ cells (PGCs), gonadal stromal cells, and chicken embryonic fibroblasts compared with blastoderms using microarray. All upregulated genes (1001, 1118, and 974, respectively) and downregulated genes (504, 627, and 1317, respectively) in three test samples were categorized into functional groups according to gene ontology. Then all selected genes were tested to examine their involvement in metabolic pathways through Kyoto Encyclopedia of Genes and Genomes pathway database using overrepresentation analysis. In our results, most of the upregulated and downregulated genes were involved in at least one subcategory of seven major metabolic pathways. The main objective of this study is to compare the PGC expressed genes and their metabolic pathways with blastoderms, gonadal stromal cells, and chicken embryonic fibroblasts. Among the genes involved in metabolic pathways, a higher number of PGC upregulated genes were identified in retinol metabolism, and a higher number of PGC downregulated genes were identified in sphingolipid metabolism. In terms of the fold change, acyl-CoA synthetase medium-chain family member 3 (ACSM3), which is involved in butanoate metabolism, and N-acetyltransferase, pineal gland isozyme NAT-10 (PNAT10), which is involved in energy metabolism, showed higher expression in PGCs. To validate these gene changes, the expression of 12 nucleotide metabolism-related genes in chicken PGCs was examined by real-time polymerase chain reaction. The results of this study provide new information on the expression of genes associated with metabolism function of PGCs and will facilitate more basic research on animal PGC differentiation and function.
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Affiliation(s)
- Deivendran Rengaraj
- WCU Biomodulation Major, Department of Agricultural Biotechnology and Research Institute for Agriculture and Life Sciences, Seoul National University, Seoul, Korea
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Vergara MN, Canto-Soler MV. Rediscovering the chick embryo as a model to study retinal development. Neural Dev 2012; 7:22. [PMID: 22738172 PMCID: PMC3541172 DOI: 10.1186/1749-8104-7-22] [Citation(s) in RCA: 73] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2012] [Accepted: 05/22/2012] [Indexed: 01/20/2023] Open
Abstract
The embryonic chick occupies a privileged place among animal models used in developmental studies. Its rapid development and accessibility for visualization and experimental manipulation are just some of the characteristics that have made it a vertebrate model of choice for more than two millennia. Until a few years ago, the inability to perform genetic manipulations constituted a major drawback of this system. However, the completion of the chicken genome project and the development of techniques to manipulate gene expression have allowed this classic animal model to enter the molecular age. Such techniques, combined with the embryological manipulations that this system is well known for, provide a unique toolkit to study the genetic basis of neural development. A major advantage of these approaches is that they permit targeted gene misexpression with extremely high spatiotemporal resolution and over a large range of developmental stages, allowing functional analysis at a level, speed and ease that is difficult to achieve in other systems. This article provides a general overview of the chick as a developmental model focusing more specifically on its application to the study of eye development. Special emphasis is given to the state of the art of the techniques that have made gene gain- and loss-of-function studies in this model a reality. In addition, we discuss some methodological considerations derived from our own experience that we believe will be beneficial to researchers working with this system.
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Affiliation(s)
- M Natalia Vergara
- Wilmer Eye Institute, The Johns Hopkins University School of Medicine, Smith Building 3023, 400 N Broadway, Baltimore, MD 21287-9257, USA
| | - M Valeria Canto-Soler
- Wilmer Eye Institute, The Johns Hopkins University School of Medicine, Smith Building 3023, 400 N Broadway, Baltimore, MD 21287-9257, USA
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Kasperczyk K, Bajek A, Joachimiak R, Walasik K, Marszalek A, Drewa T, Bednarczyk M. In vitro optimization of the Gallus domesticus oviduct epithelial cells culture. Theriogenology 2012; 77:1834-45. [DOI: 10.1016/j.theriogenology.2011.12.029] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2011] [Revised: 12/15/2011] [Accepted: 12/31/2011] [Indexed: 11/15/2022]
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piggyBac transposition into primordial germ cells is an efficient tool for transgenesis in chickens. Proc Natl Acad Sci U S A 2012; 109:9337-41. [PMID: 22645326 DOI: 10.1073/pnas.1203823109] [Citation(s) in RCA: 130] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Transgenic birds embody one of the most potent and exciting research tools in biotechnology for agriculture, medicine, and model animals. To date, retrovirus- or lentivirus-mediated transgenesis has been established in chickens and quail. However, despite having a valid technique for viral transduction to achieve transgenic birds, many obstacles exist for practical applications because of relatively low and variable rates of germ-line transmission and transgenic offspring showing transgene silencing, as well as safety issues related to viral vector use. Thus, the generation of transgenic poultry by nonviral integration is a prerequisite for the introduction of biotechnology to practical applications. Herein, we show that a germ-line-competent chicken primordial germ-cell (PGC) line was established with high efficiency of transmission to offspring and that piggyBac transposition into PGCs improved the efficiency of transgenic chicken production and led to high-level transgene expression. GFP transgene-expressing donor PGC-transferred recipient chickens produced donor-derived progenies, and the germ-line transmission efficiency of donor PGCs was 95.2% on average. Subsequently, half of the donor-derived offspring (52.2%) were transgenic chicks because GFP-expressing donor PGCs, in which a transgene was inserted into one chromosome 20, were heterozygous. In all of the transgenic chickens, GFP expression was constant and strong, regardless of age. Our results demonstrate that piggyBac transposition into the chicken PGC line could be the surest way to generate transgenic chickens safely for practical applications.
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Establishment of Intracytoplasmic Sperm Injection Technique in Japanese Quail and its Possible Application for Poultry Resources and Transgenic Birds. J Poult Sci 2012. [DOI: 10.2141/jpsa.0120042] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Limb skeletal malformations – What the HOX is going on? Eur J Med Genet 2012; 55:1-7. [DOI: 10.1016/j.ejmg.2011.06.003] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2011] [Accepted: 06/10/2011] [Indexed: 11/21/2022]
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Expression of GFP Gene in Cultured PGCs Isolated from Embryonic Blood and Incorporation into Gonads of Recipient Embryos. J Poult Sci 2012. [DOI: 10.2141/jpsa.011094] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Sun P, Zhang Z, Wu G, Yan L, Yuan F, Zhang W, Gao J, Jin W, Li Z. Transgenic chimera quail production by microinjecting lentiviral vector into the blood vessel of the early embryo. Anim Sci J 2011; 83:291-8. [PMID: 22515688 DOI: 10.1111/j.1740-0929.2011.00959.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
In the past, several strategies have been used to generate transgenic birds. The most successful method has proven to be injection of lentiviral vector into the subgerminal cavity of the newly laid egg. In this study, we directly injected lentiviral vector into the blood vessel of HH13-15 quail embryos to produce transgenic chimeras. In the manipulated, hatched birds, the green fluorescent protein (GFP) gene driven by a cytomegalovirus (CMV) promoter was extensively expressed. All tissues analyzed were GFP-positive, and gonad cells from some of the manipulated embryos expressed GFP. The semen genome of 21.4% of mature male birds was determined to be GFP-positive by PCR, indicating these male birds were transgenic chimeras.
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Affiliation(s)
- Peng Sun
- State Key Laboratories for Agrobiotechnology, China Agricultural University Beijing Education Examinations Authority, China
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Song G, Han JY. Avian biomodels for use as pharmaceutical bioreactors and for studying human diseases. Ann N Y Acad Sci 2011; 1229:69-75. [PMID: 21793841 DOI: 10.1111/j.1749-6632.2011.06087.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Animal-based biotechnologies involve the use of domestic animals for the production of pharmaceuticals and various proteins in milk and eggs, as disease models, as tools for stem cell research and animal cloning, and as sources of organs for xenotransplantation into humans. Avian species offer several advantages over mammalian models, and they have been used historically to advance the fields of embryology, immunology, oncology, virology, and vaccine development. In addition, avian species can be used for studying the etiology of human ovarian cancer and other human diseases such as disorders based on the abnormal metabolism of lipids and as unique mechanisms for the biosynthesis and transport of cholesterol. This review integrates recent progress and insight into the molecular and physiologic mechanisms associated with transgenic birds and gives an overview of the use of avian models as pharmaceutical bioreactors and as tools for studying human diseases.
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Affiliation(s)
- Gwonhwa Song
- WCU Biomodulation Major, Department of Agricultural Biotechnology, Seoul National University, Seoul, Korea
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