1
|
Youssef B, Feghaly C, Al Choboq J, Bou-Gharios J, Challita R, Azzi J, Bou Hadir H, Abi Antoun F, Araji T, Taddei PJ, Geara F, Sfeir P, Jurjus A, Abou-Kheir W, Bodgi L. Impaired DNA Double-Strand Break Repair in Irradiated Sheep Lung Fibroblasts: Late Effects of Previous Irradiation of the Spinal Thecal Sac. Cancers (Basel) 2024; 16:2968. [PMID: 39272826 PMCID: PMC11394103 DOI: 10.3390/cancers16172968] [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: 08/07/2024] [Revised: 08/22/2024] [Accepted: 08/23/2024] [Indexed: 09/15/2024] Open
Abstract
Children with cancer previously treated with radiotherapy face the likelihood of side effects that can be debilitating or fatal. This study aimed to assess the long-term effect of medulloblastoma radiotherapy on the DNA double-strand break (DSB) repair capability of primary fibroblasts derived from lung biopsies of previously irradiated young sheep. This study included biopsies from three control and five irradiated sheep. The treated sheep had previously received spinal radiotherapy at a total dose of 28 Gy, which is equivalent to pediatric medulloblastoma treatment. Lung biopsies were taken 4 years post-irradiation from high-dose (HD, >18 Gy) and low-dose (LD, <2 Gy) regions. Fifteen cell lines were extracted (six control, four LD and five HD). The cells were irradiated, and DNA DSB repair was analyzed by immunofluorescence. Clonogenic, trypan blue and micronuclei assays were performed. Both the HD and LD cell lines had a significantly higher number of residual γH2AX foci 24 h and a significant decrease in pATM activity post-irradiation compared to the control. There was no statistically significant difference in the clonogenic assay, trypan blue and micronuclei results. Our study showed that a previous irradiation can impair the DNA DSB repair mechanism of ovine lung fibroblasts.
Collapse
Affiliation(s)
- Bassem Youssef
- Department of Radiation Oncology, American University of Beirut Medical Center, Beirut 1107 2020, Lebanon
| | - Charbel Feghaly
- Department of Radiation Oncology, American University of Beirut Medical Center, Beirut 1107 2020, Lebanon
| | - Joelle Al Choboq
- Department of Radiation Oncology, American University of Beirut Medical Center, Beirut 1107 2020, Lebanon
| | - Jolie Bou-Gharios
- Department of Radiation Oncology, American University of Beirut Medical Center, Beirut 1107 2020, Lebanon
| | - Rafka Challita
- Department of Radiation Oncology, American University of Beirut Medical Center, Beirut 1107 2020, Lebanon
- Department of Anatomy, Cell Biology and Physiological Sciences, Faculty of Medicine, American University of Beirut, Beirut 1107 2020, Lebanon
| | - Joyce Azzi
- Department of Radiation Oncology, American University of Beirut Medical Center, Beirut 1107 2020, Lebanon
| | - Hanine Bou Hadir
- Department of Radiation Oncology, American University of Beirut Medical Center, Beirut 1107 2020, Lebanon
| | - Fabienne Abi Antoun
- Department of Radiation Oncology, American University of Beirut Medical Center, Beirut 1107 2020, Lebanon
| | - Tarek Araji
- Department of Anatomy, Cell Biology and Physiological Sciences, Faculty of Medicine, American University of Beirut, Beirut 1107 2020, Lebanon
| | - Phillip J Taddei
- Department of Radiation Oncology, American University of Beirut Medical Center, Beirut 1107 2020, Lebanon
- Department of Radiation Oncology, Texas Oncology, Dallas, TX 75251, USA
| | - Fady Geara
- Department of Radiation Oncology, American University of Beirut Medical Center, Beirut 1107 2020, Lebanon
| | - Pierre Sfeir
- Department of Surgery, American University of Beirut Medical Center, Beirut 1107 2020, Lebanon
| | - Abdo Jurjus
- Department of Anatomy, Cell Biology and Physiological Sciences, Faculty of Medicine, American University of Beirut, Beirut 1107 2020, Lebanon
| | - Wassim Abou-Kheir
- Department of Anatomy, Cell Biology and Physiological Sciences, Faculty of Medicine, American University of Beirut, Beirut 1107 2020, Lebanon
| | - Larry Bodgi
- Department of Radiation Oncology, American University of Beirut Medical Center, Beirut 1107 2020, Lebanon
- Department of Anatomy, Cell Biology and Physiological Sciences, Faculty of Medicine, American University of Beirut, Beirut 1107 2020, Lebanon
- U1296 Unit, "Radiation: Defense, Health and Environment", Centre Léon-Bérard, Inserm, 28 Rue Laennec, 69008 Lyon, France
| |
Collapse
|
2
|
Lee AR, Park JH, Shim SH, Hong K, La H, Park KS, Lee DR. Genome stabilization by RAD51-stimulatory compound 1 enhances efficiency of somatic cell nuclear transfer-mediated reprogramming and full-term development of cloned mouse embryos. Cell Prolif 2021; 54:e13059. [PMID: 34021643 PMCID: PMC8249786 DOI: 10.1111/cpr.13059] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 04/24/2021] [Accepted: 05/04/2021] [Indexed: 12/11/2022] Open
Abstract
OBJECTIVES The genetic instability and DNA damage arise during transcription factor-mediated reprogramming of somatic cells, and its efficiency may be reduced due to abnormal chromatin remodelling. The efficiency in somatic cell nuclear transfer (SCNT)-mediated reprogramming is also very low, and it is caused by development arrest of most reconstituted embryos. MATERIALS AND METHODS Whether the repair of genetic instability or double-strand breaks (DSBs) during SCNT reprogramming may play an important role in embryonic development, we observed and analysed the effect of Rad 51, a key modulator of DNA damage response (DDR) in SCNT-derived embryos. RESULTS Here, we observed that the activity of Rad 51 is lower in SCNT eggs than in conventional IVF and found a significantly lower level of DSBs in SCNT embryos during reprogramming. To address this difference, supplementation with RS-1, an activator of Rad51, during the activation of SCNT embryos can increase RAD51 expression and DSB foci and thereby increased the efficiency of SCNT reprogramming. Through subsequent single-cell RNA-seq analysis, we observed the reactivation of a large number of genes that were not expressed in SCNT-2-cell embryos by the upregulation of DDR, which may be related to overcoming the developmental block. Additionally, there may be an independent pathway involving histone demethylase that can reduce reprograming-resistance regions. CONCLUSIONS This technology can contribute to the production of comparable cell sources for regenerative medicine.
Collapse
Affiliation(s)
- Ah Reum Lee
- Department of Biomedical Science, CHA University, Seongnam, Gyunggi-do, Korea.,CHA Advanced Research Institute, CHA University, Seongnam, Gyunggi-do, Korea
| | - Ji-Hoon Park
- Department of Biomedical Science, CHA University, Seongnam, Gyunggi-do, Korea
| | - Sung Han Shim
- Department of Biomedical Science, CHA University, Seongnam, Gyunggi-do, Korea
| | - Kwonho Hong
- Department of Stem Cell and Regenerative Biology, Konkuk University, Gwangjin-gu, Seoul, Korea
| | - Hyeonwoo La
- Department of Stem Cell and Regenerative Biology, Konkuk University, Gwangjin-gu, Seoul, Korea
| | - Kyung-Soon Park
- Department of Biomedical Science, CHA University, Seongnam, Gyunggi-do, Korea
| | - Dong Ryul Lee
- Department of Biomedical Science, CHA University, Seongnam, Gyunggi-do, Korea.,CHA Advanced Research Institute, CHA University, Seongnam, Gyunggi-do, Korea
| |
Collapse
|
3
|
Potential role of intraspecific and interspecific cloning in the conservation of wild mammals. ZYGOTE 2019; 27:111-117. [DOI: 10.1017/s0967199419000170] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
SummaryIntraspecific and interspecific cloning via somatic cell nuclear transfer (iSCNT) is a biotechnique with great possibilities for wild mammals because it allows the maintenance of biodiversity by recovering species, nuclear reprogramming for the production of pluripotency-induced cells, and studies related to embryonic development. Nevertheless, many areas in cloning, especially those associated with wild mammals, are still in question because of the difficulty in obtaining cytoplasmic donor cells (or cytoplasts). Conversely, donor cell nuclei (or karyoplasts) are widely obtained from the skin of living or post-mortem individuals and often maintained in somatic cell banks. Moreover, the creation of karyoplast–cytoplast complexes by fusion followed by activation and embryo development is one of the most difficult steps that requires further clarification to avoid genetic failures. Although difficult, cloning different species, such as wild carnivores and ungulates, can be successful via iSCNT with embryo development and the birth of offspring. Thus, novel research in the area that contributes to the conservation of biodiversity and knowledge of the physiology of species continues. The present review presents the failures and successes that occurred with the application of the technique in wild mammals, with the goal of helping future work on cloning via iSCNT.
Collapse
|
4
|
Gonzalez-Munoz E, Cibelli JB. Somatic Cell Reprogramming Informed by the Oocyte. Stem Cells Dev 2018; 27:871-887. [DOI: 10.1089/scd.2018.0066] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Affiliation(s)
- Elena Gonzalez-Munoz
- LARCEL, Andalusian Laboratory of Cell Reprogramming (LARCel), Andalusian Center for Nanomedicine and Biotechnology-BIONAND, Málaga, Spain
- Department of Cell Biology, Genetics and Physiology, University of Málaga, Málaga, Spain
- Networking Research Center on Bioengineering, Biomaterials and Nanomedicine, (CIBER-BBN), Málaga, Spain
| | - Jose B. Cibelli
- LARCEL, Andalusian Laboratory of Cell Reprogramming (LARCel), Andalusian Center for Nanomedicine and Biotechnology-BIONAND, Málaga, Spain
- Department of Animal Science, Michigan State University, East Lansing, MI
- Department of Large Animal Clinical Sciences, Michigan State University, East Lansing, MI
| |
Collapse
|
5
|
Melatonin enhances the developmental competence of porcine somatic cell nuclear transfer embryos by preventing DNA damage induced by oxidative stress. Sci Rep 2017; 7:11114. [PMID: 28894150 PMCID: PMC5593819 DOI: 10.1038/s41598-017-11161-9] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2017] [Accepted: 08/15/2017] [Indexed: 12/29/2022] Open
Abstract
Melatonin has antioxidant and scavenger effects in the cellular antioxidant system. This research investigated the protective effects and underlying mechanisms of melatonin action in porcine somatic cell nuclear transfer (SCNT) embryos. The results suggested that the developmental competence of porcine SCNT embryos was considerably enhanced after melatonin treatment. In addition, melatonin attenuated the increase in reactive oxygen species levels induced by oxidative stress, the decrease in glutathione levels, and the mitochondrial dysfunction. Importantly, melatonin inhibited phospho-histone H2A.X (γH2A.X) expression and comet tail formation, suggesting that γH2A.X prevents oxidative stress-induced DNA damage. The expression of genes involved in homologous recombination and non-homologous end-joining pathways for the repair of double-stranded breaks (DSB) was reduced upon melatonin treatment in porcine SCNT embryos at day 5 of development under oxidative stress condition. These results indicated that melatonin promoted porcine SCNT embryo development by preventing oxidative stress-induced DNA damage via quenching of free radical formation. Our results revealed a previously unrecognized regulatory effect of melatonin in response to oxidative stress and DNA damage. This evidence provides a novel mechanism for the improvement in SCNT embryo development associated with exposure to melatonin.
Collapse
|
6
|
Rissi VB, Glanzner WG, Mujica LKS, Antoniazzi AQ, Gonçalves PBD, Bordignon V. Effect of Cell Cycle Interactions and Inhibition of Histone Deacetylases on Development of Porcine Embryos Produced by Nuclear Transfer. Cell Reprogram 2016; 18:8-16. [PMID: 27281695 DOI: 10.1089/cell.2015.0052] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
The aim of this study was to evaluate if the positive effects of inhibiting histone deacetylase enzymes on cell reprogramming and development of somatic cell nuclear transfer (SCNT) embryos is affected by the cell cycle stage of nuclear donor cells and host oocytes at the time of embryo reconstruction. SCNT embryos were produced with metaphase II (MII) or telophase II (TII) cytoplasts and nuclear donor cells that were either at the G1-0 or G2/M stages. Embryos reconstructed with the different cell cycle combinations were treated or not with the histone deacetylase inhibitor (HDACi) Scriptaid for 15 h and then cultured in vitro for 7 days. Embryos reconstructed with MII-G1-0 and TII-G2/M developed to the blastocyst stage with a higher frequency compared to the other groups, confirming the importance of cell cycle interactions on cell reprogramming and SCNT embryo development. Treatment with HDACi improved development of SCNT embryos produced with MII but not TII cytoplasts, independently of the cell cycle stage of nuclear donor cells. These findings provide evidence that the positive effect of HDACi treatment on development of SCNT embryos depends upon cell cycle interactions between the host cytoplast and the nuclear donor cells.
Collapse
Affiliation(s)
- Vitor B Rissi
- 1 Laboratory of Biotechnology and Animal Reproduction-BioRep, Federal University of Santa Maria (UFSM) , Santa Maria, RS 97105-900, Brazil
| | - Werner G Glanzner
- 1 Laboratory of Biotechnology and Animal Reproduction-BioRep, Federal University of Santa Maria (UFSM) , Santa Maria, RS 97105-900, Brazil
| | - Lady K S Mujica
- 1 Laboratory of Biotechnology and Animal Reproduction-BioRep, Federal University of Santa Maria (UFSM) , Santa Maria, RS 97105-900, Brazil
| | - Alfredo Q Antoniazzi
- 1 Laboratory of Biotechnology and Animal Reproduction-BioRep, Federal University of Santa Maria (UFSM) , Santa Maria, RS 97105-900, Brazil
| | - Paulo B D Gonçalves
- 1 Laboratory of Biotechnology and Animal Reproduction-BioRep, Federal University of Santa Maria (UFSM) , Santa Maria, RS 97105-900, Brazil
| | - Vilceu Bordignon
- 2 Department of Animal Science, McGill University , Ste. Anne de Bellevue, Quebec, Canada , H9X 3V9
| |
Collapse
|