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Hosseini SM, Hajian M, Forouzanfar M, Moulavi F, Abedi P, Asgari V, Tanhaei S, Abbasi H, Jafarpour F, Ostadhosseini S, Karamali F, Karbaliaie K, Baharvand H, Nasr-Esfahani MH. Enucleated ovine oocyte supports human somatic cells reprogramming back to the embryonic stage. Cell Reprogram 2012; 14:155-63. [PMID: 22384929 DOI: 10.1089/cell.2011.0061] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Increased possibility of universality of ooplasmic reprogramming factors resulted in a parallel increased interest to use interspecies somatic cell nuclear transfer (iSCNT) to address basic questions of developmental biology and to improve the feasibility of cell therapy. In this study, the interactions between human somatic cells and ovine oocytes were investigated. Nuclear remodeling events were first observed 3 h post-iSCNT as nuclear swelling, chromosome condensation, and spindle formation. A time-dependent decrease in maturation promoting activity of inactivated reconstructs coincided with increased aberrations in chromosome and spindle organization of the newly developed embryos. The sequence and duration of nuclear remodeling events were irrespective of donor cell type used. Although the majority of the reconstituted embryos arrested before embryonic genome activation (8-16-cell) stage, less than 5% of them could progress beyond transcription-requiring developmental stage and formed blastocyst-like structures with distinct inner cell mass and trophectoderm at days 7 and 8 post-SCNT. Importantly, real-time assessment of three developmentally important genes (Oct4, Sox2, and Nanog) indicated their upregulation in iSCNT blastocysts. Blastocyst-derived outgrowths had alkaline phosphatase activity that was lost upon passage. Collectively, this study introduced ovine oocyte as a credible cytoplast for remodeling and reprogramming of human somatic cells back to the embryonic stage and provided a platform for further studies to unravel possible differences exist between reprogramming ability of oocytes of different mammalian species.
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Affiliation(s)
- S Morteza Hosseini
- Department of Reproduction and Development, Reproductive Biomedicine Research Center, Royan Institute for Animal Biotechnology, ACECR, Isfahan, Iran
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Holland MM, McQuillan MR, O'Hanlon KA. Second generation sequencing allows for mtDNA mixture deconvolution and high resolution detection of heteroplasmy. Croat Med J 2012; 52:299-313. [PMID: 21674826 PMCID: PMC3118725 DOI: 10.3325/cmj.2011.52.299] [Citation(s) in RCA: 76] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022] Open
Abstract
Aim To use parallel array pyrosequencing to deconvolute mixtures of mitochondrial DNA (mtDNA) sequence and provide high resolution analysis of mtDNA heteroplasmy. Methods The hypervariable segment 1 (HV1) of the mtDNA control region was analyzed from 30 individuals using the 454 GS Junior instrument. Mock mixtures were used to evaluate the system’s ability to deconvolute mixtures and to reliably detect heteroplasmy, including heteroplasmic differences between 5 family members of the same maternal lineage. Amplicon sequencing was performed on polymerase chain reaction (PCR) products generated with primers that included multiplex identifiers (MID) and adaptors for pyrosequencing. Data analysis was performed using NextGENe® software. The analysis of an autosomal short tandem repeat (STR) locus (D18S51) and a Y-STR locus (DYS389 I/II) was performed simultaneously with a portion of HV1 to illustrate that multiplexing can encompass different markers of forensic interest. Results Mixtures, including heteroplasmic variants, can be detected routinely down to a component ratio of 1:250 (20 minor variant copies with a coverage rate of 5000 sequences) and can be readily detected down to 1:1000 (0.1%) with expanded coverage. Amplicon sequences from D18S51, DYS389 I/II, and the second half of HV1 were successfully partitioned and analyzed. Conclusions The ability to routinely deconvolute mtDNA mixtures down to a level of 1:250 allows for high resolution analysis of mtDNA heteroplasmy, and for differentiation of individuals from the same maternal lineage. The pyrosequencing approach results in poor resolution of homopolymeric sequences, and PCR/sequencing artifacts require a filtering mechanism similar to that for STR stutter and spectral bleed through. In addition, chimeric sequences from jumping PCR must be addressed to make the method operational.
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Affiliation(s)
- Mitchell M Holland
- Forensic Science Program, The Pennsylvania State University, University Park, PA 16870, USA.
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Affiliation(s)
- T. A. Brettell
- Department of Chemical and Physical Sciences, Cedar Crest College, 100 College Drive, Allentown, Pennsylvania 18104-6196, United States
| | - J. M. Butler
- Biochemical Science Division, National Institute of Standards and Technology, Gaithersburg, Maryland 20899-8312, United States
| | - J. R. Almirall
- Department of Chemistry and Biochemistry and International Forensic Research Institute, Florida International University, University Park, Miami, Florida 33199, United States
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Hall TA, Sannes-Lowery KA, McCurdy LD, Fisher C, Anderson T, Henthorne A, Gioeni L, Budowle B, Hofstadler SA. Base Composition Profiling of Human Mitochondrial DNA Using Polymerase Chain Reaction and Direct Automated Electrospray Ionization Mass Spectrometry. Anal Chem 2009; 81:7515-26. [DOI: 10.1021/ac901222y] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Thomas A. Hall
- Ibis Biosciences, subsidiary of Abbott Molecular, Inc., Carlsbad, California 92008, Federal Bureau of Investigation, Quantico, Virginia 22135, Armed Forces DNA Identification Laboratory, Rockville, Maryland 20850, and Department of Forensic and Investigative Genetics, Institute of Investigative Genetics, University of North Texas Health Science Center, Fort Worth, Texas 76107
| | - Kristin A. Sannes-Lowery
- Ibis Biosciences, subsidiary of Abbott Molecular, Inc., Carlsbad, California 92008, Federal Bureau of Investigation, Quantico, Virginia 22135, Armed Forces DNA Identification Laboratory, Rockville, Maryland 20850, and Department of Forensic and Investigative Genetics, Institute of Investigative Genetics, University of North Texas Health Science Center, Fort Worth, Texas 76107
| | - Leslie D. McCurdy
- Ibis Biosciences, subsidiary of Abbott Molecular, Inc., Carlsbad, California 92008, Federal Bureau of Investigation, Quantico, Virginia 22135, Armed Forces DNA Identification Laboratory, Rockville, Maryland 20850, and Department of Forensic and Investigative Genetics, Institute of Investigative Genetics, University of North Texas Health Science Center, Fort Worth, Texas 76107
| | - Constance Fisher
- Ibis Biosciences, subsidiary of Abbott Molecular, Inc., Carlsbad, California 92008, Federal Bureau of Investigation, Quantico, Virginia 22135, Armed Forces DNA Identification Laboratory, Rockville, Maryland 20850, and Department of Forensic and Investigative Genetics, Institute of Investigative Genetics, University of North Texas Health Science Center, Fort Worth, Texas 76107
| | - Theodore Anderson
- Ibis Biosciences, subsidiary of Abbott Molecular, Inc., Carlsbad, California 92008, Federal Bureau of Investigation, Quantico, Virginia 22135, Armed Forces DNA Identification Laboratory, Rockville, Maryland 20850, and Department of Forensic and Investigative Genetics, Institute of Investigative Genetics, University of North Texas Health Science Center, Fort Worth, Texas 76107
| | - Almira Henthorne
- Ibis Biosciences, subsidiary of Abbott Molecular, Inc., Carlsbad, California 92008, Federal Bureau of Investigation, Quantico, Virginia 22135, Armed Forces DNA Identification Laboratory, Rockville, Maryland 20850, and Department of Forensic and Investigative Genetics, Institute of Investigative Genetics, University of North Texas Health Science Center, Fort Worth, Texas 76107
| | - Lora Gioeni
- Ibis Biosciences, subsidiary of Abbott Molecular, Inc., Carlsbad, California 92008, Federal Bureau of Investigation, Quantico, Virginia 22135, Armed Forces DNA Identification Laboratory, Rockville, Maryland 20850, and Department of Forensic and Investigative Genetics, Institute of Investigative Genetics, University of North Texas Health Science Center, Fort Worth, Texas 76107
| | - Bruce Budowle
- Ibis Biosciences, subsidiary of Abbott Molecular, Inc., Carlsbad, California 92008, Federal Bureau of Investigation, Quantico, Virginia 22135, Armed Forces DNA Identification Laboratory, Rockville, Maryland 20850, and Department of Forensic and Investigative Genetics, Institute of Investigative Genetics, University of North Texas Health Science Center, Fort Worth, Texas 76107
| | - Steven A. Hofstadler
- Ibis Biosciences, subsidiary of Abbott Molecular, Inc., Carlsbad, California 92008, Federal Bureau of Investigation, Quantico, Virginia 22135, Armed Forces DNA Identification Laboratory, Rockville, Maryland 20850, and Department of Forensic and Investigative Genetics, Institute of Investigative Genetics, University of North Texas Health Science Center, Fort Worth, Texas 76107
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