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Ozturk Öztürk DA, Erden Y, Tekin S. Central MOTS-c infusion affects reproductive hormones in obese and non-obese rats. Neurosci Lett 2024; 826:137722. [PMID: 38462167 DOI: 10.1016/j.neulet.2024.137722] [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] [Received: 12/22/2023] [Revised: 03/06/2024] [Accepted: 03/07/2024] [Indexed: 03/12/2024]
Abstract
MOTS-c, a mitochondrial-derived peptide, acts as a systemic hormone and MOTS-c level is inversely correlated with markers of obesity. Obesity is a risk factor for male reproductive physiology and is expressed as an important cause of infertility. In this study, we aimed to determine the effects of MOTS-c, which has been proven in the hypothalamus and testicles, on the actors involved in the reproductive axis. In the study, 80 male Wistar-Albino rats were divided into two main groups, obese and non-obese (n = 40). Rats in the first main group were fed with fatty diet feed and obesity was induced. The second main group was fed with normal diet feed. Each main group was divided into 4 subgroups (Control, Sham, 10 and 100 µM MOTS-c). The lateral ventricles of the animals in the treatment groups were infused with 10 and 100 µM MOTS-c (solvent in Sham group) for 14 days. At the end of the experiment, hypothalamic Gonadotropin-Releasing Hormone (GnRH) gene expression level, serum testosterone, Luteinizing hormone (LH) and Follicle stimulating hormone (FSH) levels were determined. MOTS-c infusion caused an increase in GnRH mRNA, protein expression levels and serum testosterone, LH and FSH levels in obese and non-obese rats (p < 0.05). MOTS-c administration more significantly upregulated hormone levels in non-obese rats (p < 0.05). MOTS-c administration increases these hormones, suggesting that MOTS-c may stimulate the reproductive axis. Our results reveal that MOTS-c plays a role in the central regulation of reproduction, as well as causes increased LH, FSH and testosterone release.
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Affiliation(s)
| | - Yavuz Erden
- Department of Molecular Biology and Genetics, Faculty of Science, Bartin University, Bartin, Turkey.
| | - Suat Tekin
- Department of Physiology, Faculty of Medicine, Inonu University, Malatya, Turkey.
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2
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Juárez-Barber E, Corachán A, Carbajo-García MC, Faus A, Vidal C, Giles J, Pellicer A, Cervelló I, Ferrero H. Transcriptome analysis of adenomyosis eutopic endometrium reveals molecular mechanisms involved in adenomyosis-related implantation failure and pregnancy disorders. Reprod Biol Endocrinol 2024; 22:10. [PMID: 38195505 PMCID: PMC10775471 DOI: 10.1186/s12958-023-01182-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Accepted: 12/28/2023] [Indexed: 01/11/2024] Open
Abstract
BACKGROUND Women with adenomyosis are characterized by having defective decidualization, impaired endometrial receptivity and/or embryo-maternal communication, and implantation failure. However, the molecular mechanisms underlying adenomyosis-related infertility remain unknown, mainly because of the restricted accessibility and the difficult preservation of endometrial tissue in vitro. We have recently shown that adenomyosis patient-derived endometrial organoids, maintain disease-specific features while differentiated into mid-secretory and gestational endometrial phase, overcoming these research barriers and providing a robust platform to study adenomyosis pathogenesis and the associated molecular dysregulation related to implantation and pregnancy disorders. For this reason, we aim to characterize the dysregulated mechanisms in the mid-secretory and gestational endometrium of patients with adenomyosis by RNA-sequencing. METHODS Endometrial organoids were derived from endometrial biopsies collected in the proliferative phase of women with adenomyosis (ADENO) or healthy oocyte donors (CONTROL) (n = 15/group) and differentiated into mid-secretory (-SECorg) and gestational (-GESTorg) phases in vitro. Following RNA-sequencing, the significantly differentially expressed genes (DEGs) (FDR < 0.05) were identified and selected for subsequent functional enrichment analysis and QIAGEN Ingenuity Pathway Analysis (IPA). Statistical differences in gene expression were evaluated with the Student's t-test or Wilcoxon test. RESULTS We identified 1,430 DEGs in ADENO-SECorg and 1,999 DEGs in ADENO-GESTorg. In ADENO-SECorg, upregulated genes included OLFM1, FXYD5, and RUNX2, which are involved in impaired endometrial receptivity and implantation failure, while downregulated genes included RRM2, SOSTDC1, and CHAC2 implicated in recurrent implantation failure. In ADENO-GESTorg, upregulated CXCL14 and CYP24A1 and downregulated PGR were related to pregnancy loss. IPA predicted a significant inhibition of ID1 signaling, histamine degradation, and activation of HMGB1 and Senescence pathways, which are related to implantation failure. Alternatively, IPA predicted an inhibition of D-myo-inositol biosynthesis and VEGF signaling, and upregulation of Rho pathway, which are related to pregnancy loss and preeclampsia. CONCLUSIONS Identifying dysregulated molecular mechanisms in mid-secretory and gestational endometrium of adenomyosis women contributes to the understanding of adenomyosis-related implantation failure and/or pregnancy disorders revealing potential therapeutic targets. Following experimental validation of our transcriptomic and in silico findings, our differentiated adenomyosis patient-derived organoids have the potential to provide a reliable platform for drug discovery, development, and personalized drug screening for affected patients.
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Affiliation(s)
- Elena Juárez-Barber
- Fundación IVI, Instituto de Investigación Sanitaria La Fe, Valencia, 46026, Spain
| | - Ana Corachán
- Fundación IVI, Instituto de Investigación Sanitaria La Fe, Valencia, 46026, Spain
- Department of Pediatrics, Obstetrics and Gynecology, Universidad de Valencia, Valencia, 46010, Spain
| | - María Cristina Carbajo-García
- Fundación IVI, Instituto de Investigación Sanitaria La Fe, Valencia, 46026, Spain
- Department of Pediatrics, Obstetrics and Gynecology, Universidad de Valencia, Valencia, 46010, Spain
| | - Amparo Faus
- Fundación IVI, Instituto de Investigación Sanitaria La Fe, Valencia, 46026, Spain
| | | | - Juan Giles
- IVI-RMA Valencia, Valencia, 46015, Spain
| | - Antonio Pellicer
- Fundación IVI, Instituto de Investigación Sanitaria La Fe, Valencia, 46026, Spain
- IVI-RMA Rome, Rome, 00197, Italy
| | - Irene Cervelló
- Fundación IVI, Instituto de Investigación Sanitaria La Fe, Valencia, 46026, Spain
| | - Hortensia Ferrero
- Fundación IVI, Instituto de Investigación Sanitaria La Fe, Valencia, 46026, Spain.
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3
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Atreya MR, Piraino G, Cvijanovich NZ, Fitzgerald JC, Weiss SL, Bigham MT, Jain PN, Schwarz AJ, Lutfi R, Nowak J, Thomas NJ, Baines T, Haileselassie B, Zingarelli B. SERUM HUMANIN IN PEDIATRIC SEPTIC SHOCK-ASSOCIATED MULTIPLE-ORGAN DYSFUNCTION SYNDROME. Shock 2024; 61:83-88. [PMID: 37917869 PMCID: PMC10842252 DOI: 10.1097/shk.0000000000002266] [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] [Indexed: 11/04/2023]
Abstract
ABSTRACT Background: Multiple-organ dysfunction syndrome disproportionately contributes to pediatric sepsis morbidity. Humanin (HN) is a small peptide encoded by mitochondrial DNA and thought to exert cytoprotective effects in endothelial cells and platelets. We sought to test the association between serum HN (sHN) concentrations and multiple-organ dysfunction syndrome in a prospectively enrolled cohort of pediatric septic shock. Methods: Human MT-RNR2 ELISA was used to determine sHN concentrations on days 1 and 3. The primary outcome was thrombocytopenia-associated multiorgan failure (TAMOF). Secondary outcomes included individual organ dysfunctions on day 7. Associations across pediatric sepsis biomarker (PERSEVERE)-based mortality risk strata and correlation with platelet and markers of endothelial activation were tested. Results: One hundred forty subjects were included in this cohort, of whom 39 had TAMOF. The concentration of sHN was higher on day 1 relative to day 3 and among those with TAMOF phenotype in comparison to those without. However, the association between sHN and TAMOF phenotype was not significant after adjusting for age and illness severity in multivariate models. In secondary analyses, sHN was associated with presence of day 7 sepsis-associated acute kidney injury ( P = 0.049). Furthermore, sHN was higher among those with high PERSEVERE-mortality risk strata and correlated with platelet counts and several markers of endothelial activation. Conclusion: Future investigation is necessary to validate the association between sHN and sepsis-associated acute kidney injury among children with septic shock. Furthermore, mechanistic studies that elucidate the role of HN may lead to therapies that promote organ recovery through restoration of mitochondrial homeostasis among those critically ill.
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Affiliation(s)
| | - Giovanna Piraino
- Division of Critical Care Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, 45229, OH, USA
| | | | | | - Scott L Weiss
- Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA
| | | | - Parag N Jain
- Texas Children's Hospital and Baylor College of Medicine, Houston, TX 77030, USA
| | - Adam J Schwarz
- Children's Hospital of Orange County, Orange, CA 92868, USA
| | - Riad Lutfi
- Riley Hospital for Children, Indianapolis, IN 46202, USA
| | - Jeffrey Nowak
- Children's Hospital and Clinics of Minnesota, Minneapolis, MN 55404, USA
| | - Neal J Thomas
- Penn State Hershey Children's Hospital, Hershey, PA 17033, USA
| | - Torrey Baines
- University of Florida Health Shands Children's Hospital, Gainesville, FL 32610, USA
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4
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Kose C, Korpe B, Yakut Yucel K, Arat O, Bucak M, Engin Ustun Y. A New Antioxidant Marker in Cord Blood of Fetuses with Late Fetal Growth Restriction: Humanin. Fetal Pediatr Pathol 2023; 42:775-784. [PMID: 37366369 DOI: 10.1080/15513815.2023.2229432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 06/16/2023] [Accepted: 06/20/2023] [Indexed: 06/28/2023]
Abstract
Purpose: This study investigated the Humanin levels in the umbilical cord blood of fetuses with late fetal growth restriction (FGR) and -evaluated their association with perinatal outcomes. Materials and Methods: A total of 95 single pregnancies between 32-41 wk (45 with late FGR and 50 controls) were included. Doppler parameters, birth weight and the need for neonatal intensive care unit admission (NICU) were assessed. Correlations between Humanin levels and these parameters were analyzed. Results: Higher Humanin levels were found in fetuses with late FGR compared to the control group (p < 0.05). No significant correlation was observed between Humanin levels and Doppler parameters. Elevated Humanin levels were associated with an increased need for NICU (p < 0.05). Conclusions: The statistically higher levels of Humanin in fetuses with late FGR may suggest the potential of Humanin as an indicator of late FGR. Further research is needed to explore the clinical utility of Humanin.
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Affiliation(s)
- Caner Kose
- Ankara Etlik City Hospital, Ankara, Turkey
| | | | | | - Ozgur Arat
- Ankara Etlik City Hospital, Ankara, Turkey
| | | | - Yaprak Engin Ustun
- University of Health Sciences Etlik Zubeyde Hanim Women's Health Training and Research Hospital, Ankara, Turkey
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5
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Wagner ML, Ammann A, Piraino G, Wolfe V, O’Connor M, Lahni P, Ziady A, Zingarelli B. PROTECTIVE EFFECTS OF HUMANIN-G IN HEMORRHAGIC SHOCK IN FEMALE MICE VIA AMPKα1-INDEPENDENT MECHANISMS. Shock 2023; 60:64-74. [PMID: 37079467 PMCID: PMC10523894 DOI: 10.1097/shk.0000000000002134] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/21/2023]
Abstract
ABSTRACT Introduction: Despite therapeutic advances in hemorrhagic shock, mortality from multiple organ failure remains high. We previously showed that the α1 subunit of AMP-activated protein kinase (AMPK), a crucial regulator of mitochondrial function, exerts a protective role in hemorrhagic shock. Humanin is a mitochondrial peptide with cytoprotective properties against cellular stress. Here, we investigated whether AMPKα1 influences systemic levels of endogenous humanin in hemorrhagic shock and whether treatment with the synthetic analog humanin-G affords beneficial effects. Methods: AMPKα1 wild-type (WT) and knockout (KO) female mice were subjected to hemorrhagic shock followed by resuscitation with blood and lactated Ringer's solution. In short-term studies, mice were treated with humanin-G or vehicle and sacrificed at 3 h after resuscitation; in survival studies, mice were treated with PEGylated humanin-G and monitored for 7 days. Results: Compared with the vehicle WT group, KO mice exhibited severe hypotension, cardiac mitochondrial damage, and higher plasma levels of Th17 cytokines but had similar lung injury and similar plasma elevation of endogenous humanin. Treatment with humanin-G improved lung injury, mean arterial blood pressure, and survival in both WT and KO mice, without affecting systemic cytokine or humanin levels. Humanin-G also ameliorated cardiac mitochondrial damage and increased adenosine triphosphate levels in KO mice. Beneficial effects of humanin-G were associated with lung cytoplasmic and nuclear activation of the signal transducer and activator of transcription-3 (STAT3) in AMPKα1-independent manner with marginal or no effects on mitochondrial STAT3 and complex I subunit GRIM-19. Conclusions: Our data indicate that circulating levels of humanin increase during hemorrhagic shock in AMPKα1-independent fashion as a defense mechanism to counteract metabolic derangement and that administration of humanin-G affords beneficial effects through STAT3 activation even in the absence of a functional AMPKα1.
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Affiliation(s)
- Monica L. Wagner
- Department of Surgery, University of Cincinnati College of Medicine, Cincinnati Ohio, USA
| | - Allison Ammann
- Department of Surgery, University of Cincinnati College of Medicine, Cincinnati Ohio, USA
| | - Giovanna Piraino
- Division of Critical Care Medicine, Cincinnati Children’s Hospital Medical Center, Cincinnati Ohio, USA
| | - Vivian Wolfe
- Division of Critical Care Medicine, Cincinnati Children’s Hospital Medical Center, Cincinnati Ohio, USA
| | - Michael O’Connor
- Division of Critical Care Medicine, Cincinnati Children’s Hospital Medical Center, Cincinnati Ohio, USA
| | - Patrick Lahni
- Division of Critical Care Medicine, Cincinnati Children’s Hospital Medical Center, Cincinnati Ohio, USA
| | - Assem Ziady
- Division of Bone Marrow Transplantation & Immune Deficiency, Cincinnati Children’s Hospital Medical Center, Cincinnati Ohio, USA
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati Ohio, USA
| | - Basilia Zingarelli
- Division of Critical Care Medicine, Cincinnati Children’s Hospital Medical Center, Cincinnati Ohio, USA
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati Ohio, USA
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6
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Chang E, Chang JS, Kong ID, Baik SK, Kim MY, Park KS. Multidimensional Biomarker Analysis Including Mitochondrial Stress Indicators for Nonalcoholic Fatty Liver Disease. Gut Liver 2021; 16:171-189. [PMID: 34420934 PMCID: PMC8924798 DOI: 10.5009/gnl210106] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Revised: 06/15/2021] [Accepted: 06/22/2021] [Indexed: 11/22/2022] Open
Abstract
Nonalcoholic fatty liver disease (NAFLD) is accompanied by a complex and multifactorial pathogenesis with sequential progressions from inflammation to fibrosis and then to cancer. This heterogeneity interferes with the development of precise diagnostic and prognostic strategies for NAFLD. The current approach for the diagnosis of simple steatosis, steatohepatitis, and cirrhosis mainly consists of ultrasonography, magnetic resonance imaging, elastography, and various serological analyses. However, individual dry and wet biomarkers have limitations demanding an integrative approach for the assessment of disease progression. Here, we review diagnostic strategies for simple steatosis, steatohepatitis and hepatic fibrosis, followed by potential biomarkers associated with fat accumulation and mitochondrial stress. For mitochondrial stress indicators, we focused on fibroblast growth factor 21 (FGF21), growth differentiation factor 15 (GDF15), angiopoietin-related growth factor and mitochondrial-derived peptides. Each biomarker may not strongly indicate the severity of steatosis or steatohepatitis. Instead, multidimensional analysis of different groups of biomarkers based on pathogenic mechanisms may provide decisive diagnostic/prognostic information to develop a therapeutic plan for patients with NAFLD. For this purpose, mitochondrial stress indicators, such as FGF21 or GDF15, could be an important component in the multiplexed and contextual interpretation of NAFLD. Further validation of the integrative evaluation of mitochondrial stress indicators combined with other biomarkers is needed in the diagnosis/prognosis of NAFLD.
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Affiliation(s)
- Eunha Chang
- Department of Physiology, Yonsei University Wonju College of Medicine, Wonju, Korea.,Department of Mitohormesis Research Center, Yonsei University Wonju College of Medicine, Wonju, Korea
| | - Jae Seung Chang
- Department of Mitohormesis Research Center, Yonsei University Wonju College of Medicine, Wonju, Korea
| | - In Deok Kong
- Department of Physiology, Yonsei University Wonju College of Medicine, Wonju, Korea
| | - Soon Koo Baik
- Department of Mitohormesis Research Center, Yonsei University Wonju College of Medicine, Wonju, Korea.,Department of Department of Internal Medicine, Yonsei University Wonju College of Medicine, Wonju, Korea
| | - Moon Young Kim
- Department of Mitohormesis Research Center, Yonsei University Wonju College of Medicine, Wonju, Korea.,Department of Department of Internal Medicine, Yonsei University Wonju College of Medicine, Wonju, Korea
| | - Kyu-Sang Park
- Department of Physiology, Yonsei University Wonju College of Medicine, Wonju, Korea.,Department of Mitohormesis Research Center, Yonsei University Wonju College of Medicine, Wonju, Korea
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7
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Kim J, Choi JW, Namkung J. Expression Profile of Mouse Gm20594, Nuclear-Encoded Humanin-Like Gene. J Lifestyle Med 2021; 11:13-22. [PMID: 33763338 PMCID: PMC7957044 DOI: 10.15280/jlm.2021.11.1.13] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Accepted: 11/29/2020] [Indexed: 12/21/2022] Open
Abstract
Background Mitochondrial-derived peptides (MDPs) such as MOTS-c and humanin have been studied for their cytoprotective functions. In mice, humanin-encoding Mtrnr2 is a mitochondrial pseudogene, and the humanin-like peptide is encoded by the nuclear Gm20594 gene. However, endogenous tissue-specific expression profiles of Gm20594 have not yet been identified. Methods Mtrnr1 and Gm20594 expression was profiled via reverse transcription using only oligo(dT) primers from tissues of C57BL6/J mice. To analyze altered expression upon mitochondrial biogenesis, C2C12 myocytes and brown adipocytes were differentiated. Mitochondrial DNA copy numbers were quantified for normalization. Results Both Mtrnr1 and Gm20594 were highly expressed in brown adipose tissue. When normalized against mitochondrial content, Mtrnr1 was identified as being highly expressed in the duodenum, followed by the jejunum. In models of mitochondrial biogenesis, both Mtrnr1 and Gm20594 were upregulated during myocyte and brown adipocyte differentiation. Increased Mtrnr1 expression during brown adipocyte differentiation remained significant after normalization against mitochondrial DNA copy number, whereas myocyte differentiation exhibited biphasic upregulation and downregulation in early and late phases, respectively. Conclusion Nuclear-encoded Gm20594 showed similar expression patterns of mitochondrial-encoded Mtrnr1. Brown adipose tissue presented the highest basal expression levels of Gm20594 and Mtrnr1. When normalized against mitochondrial DNA copy number, gut tissues exhibited the highest expression of Mtrnr1. Upregulation of Mtrnr1 during mitochondrial biogenesis is independent of mitochondrial content.
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Affiliation(s)
- Jihye Kim
- Department of Biochemistry, Yonsei University Wonju College of Medicine, Wonju, Korea
| | - Jong-Whan Choi
- Department of Biochemistry, Yonsei University Wonju College of Medicine, Wonju, Korea
| | - Jun Namkung
- Department of Biochemistry, Yonsei University Wonju College of Medicine, Wonju, Korea
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8
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Baldauf C, Sondhi M, Shin BC, Ko YE, Ye X, Lee KW, Devaskar SU. Murine maternal dietary restriction affects neural Humanin expression and cellular profile. J Neurosci Res 2019; 98:902-920. [PMID: 31840315 DOI: 10.1002/jnr.24568] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2018] [Revised: 11/06/2019] [Accepted: 11/15/2019] [Indexed: 11/10/2022]
Abstract
To understand the cellular basis for the neurodevelopmental effects of intrauterine growth restriction (IUGR), we examined the global and regional expression of various cell types within murine (Mus musculus) fetal brain. Our model employed maternal calorie restriction to 50% daily food intake from gestation day 10-19, producing IUGR offspring. Offspring had smaller head sizes with larger head:body ratios indicating a head sparing IUGR effect. IUGR fetuses at embryonic day 19 (E19) had reduced nestin (progenitors), β-III tubulin (immature neurons), Glial fibrillary acidic protein (astrocytes), and O4 (oligodendrocytes) cell lineages via immunofluorescence quantification and a 30% reduction in cortical thickness. No difference was found in Bcl-2 or Bax (apoptosis) between controls and IUGR, though qualitatively, immunoreactivity of doublecortin (migration) and Ki67 (proliferation) was decreased. In the interest of examining a potential therapeutic peptide, we next investigated a novel pro-survival peptide, mouse Humanin (mHN). Ontogeny examination revealed highest mHN expression at E19, diminishing by postnatal day 15 (P15), and nearly absent in adult (3 months). Subanalysis by sex at E19 yielded higher mHN expression among males during fetal life, without significant difference between sexes postnatally. Furthermore, female IUGR mice at E19 had a greater increase in cortical mHN versus the male fetus over their respective controls. We conclude that maternal dietary restriction-associated IUGR interferes with neural progenitors differentiating into the various cellular components populating the cerebral cortex, and reduces cerebral cortical size. mHN expression is developmental stage and sex specific, with IUGR, particularly in the females, adaptively increasing its expression toward mediating a pro-survival approach against nutritional adversity.
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Affiliation(s)
- Claire Baldauf
- Department of Pediatrics, Division of Neonatology & Developmental Biology, UCLA Children's Discovery and Innovation Institute, David Geffen School of Medicine at the University of California, Los Angeles, Los Angeles, CA, USA
| | - Monica Sondhi
- Department of Pediatrics, Division of Neonatology & Developmental Biology, UCLA Children's Discovery and Innovation Institute, David Geffen School of Medicine at the University of California, Los Angeles, Los Angeles, CA, USA
| | - Bo-Chul Shin
- Department of Pediatrics, Division of Neonatology & Developmental Biology, UCLA Children's Discovery and Innovation Institute, David Geffen School of Medicine at the University of California, Los Angeles, Los Angeles, CA, USA
| | - Young Eun Ko
- Department of Pediatrics, Division of Neonatology & Developmental Biology, UCLA Children's Discovery and Innovation Institute, David Geffen School of Medicine at the University of California, Los Angeles, Los Angeles, CA, USA
| | - Xin Ye
- Department of Pediatrics, Division of Neonatology & Developmental Biology, UCLA Children's Discovery and Innovation Institute, David Geffen School of Medicine at the University of California, Los Angeles, Los Angeles, CA, USA
| | - Kuk-Wha Lee
- Department of Pediatrics, Division of Endocrinology, Neonatal Research Center of the UCLA Children's Discovery and Innovation Institute, David Geffen School of Medicine at the University of California, Los Angeles, Los Angeles, CA, USA
| | - Sherin U Devaskar
- Department of Pediatrics, Division of Neonatology & Developmental Biology, UCLA Children's Discovery and Innovation Institute, David Geffen School of Medicine at the University of California, Los Angeles, Los Angeles, CA, USA
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9
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Rao M, Wu Z, Wen Y, Wang R, Zhao S, Tang L. Humanin levels in human seminal plasma and spermatozoa are related to sperm quality. Andrology 2019; 7:859-866. [PMID: 30920769 DOI: 10.1111/andr.12614] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2018] [Revised: 02/26/2019] [Accepted: 02/28/2019] [Indexed: 12/18/2022]
Abstract
BACKGROUND Humanin has reportedly been expressed in testis and spermatozoa, but no study has yet reported its presence in human seminal plasma (SP). OBJECTIVE The aim of this study was to investigate the presence of humanin in human SP and to determine the correlation between humanin levels in SP/spermatozoa and sperm quality. MATERIALS AND METHODS Semen samples for SP/sperm humanin level measurement were collected from 164 patients who attended our andrology clinic for fertility evaluation. The localization of humanin in spermatozoa was evaluated using an immunofluorescence method, and SP/sperm humanin levels were measured with ELISA. Correlations between SP/sperm humanin levels and sperm parameters were analyzed. RESULTS Humanin was expressed in the midpiece of the spermatozoa. Humanin concentrations in the SP ranged from 24.4 to 285.1 pg/mL, with a median of 89.7 pg/mL. The SP humanin concentrations in patients with normospermia were significantly higher than those in patients with oligospermia (p < 0.001), asthenospermia (p = 0.002), and oligoasthenospermia (p < 0.001). Spearman analysis showed a positive and significant correlation between SP humanin concentration and sperm concentration (r = 0.75, p < 0.001), and progressive sperm motility (r = 0.29, p < 0.001). Sperm humanin level was significantly and positively associated with progressive sperm motility (r = 0.70, p < 0.001). In addition, a significantly higher level of humanin was found in swim-up spermatozoa than in non-swim-up spermatozoa (p = 0.03). CONCLUSIONS Seminal plasma and sperm humanin levels were significantly and positively correlated with sperm quality, especially sperm motility. Further studies of the origin of SP humanin and its role in spermatogenesis should be conducted.
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Affiliation(s)
- M Rao
- Department of Reproduction and Genetics, The First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Z Wu
- Department of Reproduction and Genetics, The First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Y Wen
- Department of Reproduction and Genetics, The First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - R Wang
- Department of Reproduction and Genetics, The First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - S Zhao
- Department of Reproduction and Genetics, The First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - L Tang
- Department of Reproduction and Genetics, The First Affiliated Hospital of Kunming Medical University, Kunming, China
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10
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Ma Y, Li S, Wei X, Huang J, Lai M, Wang N, Huang Q, Zhao L, Peng Y, Wang Y. Comparison of serum concentrations of humanin in women with and without gestational diabetes mellitus. Gynecol Endocrinol 2018; 34:1064-1067. [PMID: 29909696 DOI: 10.1080/09513590.2018.1482869] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
Humanin (MT-RNR2) is an endogenous polypeptide that is involved in many diseases, including T2DM. Gestational diabetes mellitus (GDM) is defined as hyperglycemia during pregnancy. The aim of this study was to evaluate serum humanin levels in women with or without GDM and to elucidate possible correlations with anthropometric parameters, metabolic parameters and the incidence of GDM. Eighty-four women with GDM and 73 control women were enrolled in this study. The clinical and biochemical parameters of all subjects were determined. Serum humanin levels were measured by an ELISA. Serum humanin levels were significantly lower in women with GDM than in control women. Moreover, humanin levels were significantly negatively correlated with the presence of GDM, body weight, BMI at 24 weeks of gestation, TG, FPG, 1 hPG, 2 hPG, FINS, and HOMA-IR. In contrast, humanin levels were significantly positively correlated with FT3 and FT4. A binary logistic analysis showed that humanin levels were associated with the incidence of GDM. Additional follow-up studies are needed to highlight whether and how decreased humanin levels play an important role in GDM.
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Affiliation(s)
- Yuhang Ma
- a Department of Endocrinology and Metabolism , Shanghai General Hospital, Shanghai Jiao Tong University , Shanghai , China
| | - Shumei Li
- b Shanghai First School of Clinical Medicine , Nanjing Medical University , Shanghai , China
- c Department of Endocrinology and Metabolism , Shanghai Fourth People's Hospital , Shanghai , China
| | - Xiaohui Wei
- a Department of Endocrinology and Metabolism , Shanghai General Hospital, Shanghai Jiao Tong University , Shanghai , China
| | - Jingjing Huang
- a Department of Endocrinology and Metabolism , Shanghai General Hospital, Shanghai Jiao Tong University , Shanghai , China
| | - Mengyu Lai
- a Department of Endocrinology and Metabolism , Shanghai General Hospital, Shanghai Jiao Tong University , Shanghai , China
| | - Nian Wang
- a Department of Endocrinology and Metabolism , Shanghai General Hospital, Shanghai Jiao Tong University , Shanghai , China
| | - Qianfang Huang
- a Department of Endocrinology and Metabolism , Shanghai General Hospital, Shanghai Jiao Tong University , Shanghai , China
| | - Li Zhao
- a Department of Endocrinology and Metabolism , Shanghai General Hospital, Shanghai Jiao Tong University , Shanghai , China
| | - Yongde Peng
- a Department of Endocrinology and Metabolism , Shanghai General Hospital, Shanghai Jiao Tong University , Shanghai , China
| | - Yufan Wang
- a Department of Endocrinology and Metabolism , Shanghai General Hospital, Shanghai Jiao Tong University , Shanghai , China
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Lue Y, Gao C, Swerdloff R, Hoang J, Avetisyan R, Jia Y, Rao M, Ren S, Atienza V, Yu J, Zhang Y, Chen M, Song Y, Wang Y, Wang C. Humanin analog enhances the protective effect of dexrazoxane against doxorubicin-induced cardiotoxicity. Am J Physiol Heart Circ Physiol 2018; 315:H634-H643. [PMID: 29775411 PMCID: PMC6734085 DOI: 10.1152/ajpheart.00155.2018] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Revised: 04/26/2018] [Accepted: 05/07/2018] [Indexed: 12/28/2022]
Abstract
The chemotherapeutic effect of doxorubicin (Dox) is limited by cumulative dose-dependent cardiotoxicity in cancer survivors. Dexrazoxane (DRZ) is approved to prevent Dox-induced cardiotoxicity. Humanin and its synthetic analog HNG have a cytoprotective effect on the heart. To investigate the cardioprotective efficacy of HNG alone or in combination with DRZ against Dox-induced cardiotoxicity, 80 adult male mice were randomly divided into 8 groups to receive the following treatments via intraperitoneal injection: saline dailym HNG (5 mg/kg) daily, DRZ (60 mg/kg) weekly, Dox (3 mg/kg) weekly, DRZ + HNG, Dox + HNG, Dox + DRZ, and Dox + HNG + DRZ. Echocardiograms were performed before and at 4, 8, and 9.5 wk after the beginning of treatment. All mice were euthanized at 10 wk. In the absence of Dox, HNG, DRZ, or DRZ + HNG had no adverse effect on the heart. Dox treatment caused decreases in ejection fraction and cardiac mass and increases in cardiomyocyte apoptosis and intracardiac fibrosis. HNG or DRZ alone blunted the Dox-induced decrease in left ventricle posterior wall thickness and modestly ameliorated the Dox-induced decrease in ejection fraction. HNG + DRZ significantly ameliorated Dox-induced decreases in ejection function, cardiac fibrosis, and cardiac mass. Using a targeted analysis for the mitochondrial gene array and protein expression in heart tissues, we demonstrated that HNG + DRZ reversed DOX-induced altered transcripts that were biomarkers of cardiac damage and uncoupling protein-2. We conclude that HNG enhances the cardiac protective effect of DRZ against Dox-induced cardiotoxicity. HNG + DRZ protects mitochondria from Dox-induced cardiac damage and blunts the onset of cardiac dysfunction. Thus, HNG may be an adjuvant to DRZ in preventing Dox-induced cardiotoxicity. NEW & NOTEWORTHY Doxorubicin (Dox) is commonly used for treating a wide range of human cancers. However, cumulative dosage-dependent carditoxicity often limits its clinical applications. We demonstrated in this study that treating young adult male mice with synthetic humanin analog enhanced the cardiac protective effect of dexrazoxane against chemotherapeutic agent Dox-induced cardiac dysfunction. Thus, humanin analog can potentially serve as an adjuvant to dexrazoxane in more effectively preventing Dox-induced cardiac dysfunction and cardiomyopathy.
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Affiliation(s)
- Yanhe Lue
- Division of Endocrinology, Department of Medicine, Los Angeles Biomedical Research Institute and Harbor-UCLA Medical Center, University of California-Los Angeles, Torrance, California
| | - Chen Gao
- Division of Molecular Medicine, Department of Anesthesiology, David Geffen School of Medicine at UCLA, University of California-Los Angeles, Los Angeles, California
| | - Ronald Swerdloff
- Division of Endocrinology, Department of Medicine, Los Angeles Biomedical Research Institute and Harbor-UCLA Medical Center, University of California-Los Angeles, Torrance, California
| | - James Hoang
- Division of Endocrinology, Department of Medicine, Los Angeles Biomedical Research Institute and Harbor-UCLA Medical Center, University of California-Los Angeles, Torrance, California
| | - Rozeta Avetisyan
- Division of Molecular Medicine, Department of Anesthesiology, David Geffen School of Medicine at UCLA, University of California-Los Angeles, Los Angeles, California
| | - Yue Jia
- Division of Endocrinology, Department of Medicine, Los Angeles Biomedical Research Institute and Harbor-UCLA Medical Center, University of California-Los Angeles, Torrance, California
| | - Meng Rao
- Division of Endocrinology, Department of Medicine, Los Angeles Biomedical Research Institute and Harbor-UCLA Medical Center, University of California-Los Angeles, Torrance, California
| | - Shuxun Ren
- Division of Molecular Medicine, Department of Anesthesiology, David Geffen School of Medicine at UCLA, University of California-Los Angeles, Los Angeles, California
| | - Vince Atienza
- Division of Endocrinology, Department of Medicine, Los Angeles Biomedical Research Institute and Harbor-UCLA Medical Center, University of California-Los Angeles, Torrance, California
| | - Junyi Yu
- Division of Molecular Medicine, Department of Anesthesiology, David Geffen School of Medicine at UCLA, University of California-Los Angeles, Los Angeles, California
- Department of Cardiology, Chongqing Institute of Cardiology and Chongqing Cardiovascular Clinical Research Center, Daping Hospital, Third Military Medical University , Chongqing , China
| | - Ye Zhang
- Division of Molecular Medicine, Department of Anesthesiology, David Geffen School of Medicine at UCLA, University of California-Los Angeles, Los Angeles, California
- Department of Cardiology, Chongqing Institute of Cardiology and Chongqing Cardiovascular Clinical Research Center, Daping Hospital, Third Military Medical University , Chongqing , China
| | - Mengping Chen
- Division of Molecular Medicine, Department of Anesthesiology, David Geffen School of Medicine at UCLA, University of California-Los Angeles, Los Angeles, California
- Department of Pathophysiology, Key Laboratory of Cell Differentiation and Apoptosis, Chinese Ministry of Education, Shanghai Jiao Tong University School of Medicine , Shanghai , China
| | - Yang Song
- Division of Molecular Medicine, Department of Anesthesiology, David Geffen School of Medicine at UCLA, University of California-Los Angeles, Los Angeles, California
| | - Yibin Wang
- Division of Molecular Medicine, Department of Anesthesiology, David Geffen School of Medicine at UCLA, University of California-Los Angeles, Los Angeles, California
| | - Christina Wang
- Division of Endocrinology, Department of Medicine, Los Angeles Biomedical Research Institute and Harbor-UCLA Medical Center, University of California-Los Angeles, Torrance, California
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Janzen C, Lei MYY, Jeong ISD, Ganguly A, Sullivan P, Paharkova V, Capodanno G, Nakamura H, Perry A, Shin BC, Lee KW, Devaskar SU. Humanin (HN) and glucose transporter 8 (GLUT8) in pregnancies complicated by intrauterine growth restriction. PLoS One 2018; 13:e0193583. [PMID: 29590129 PMCID: PMC5873989 DOI: 10.1371/journal.pone.0193583] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2017] [Accepted: 02/14/2018] [Indexed: 12/20/2022] Open
Abstract
Background Intrauterine growth restriction (IUGR) results from a lack of nutrients transferred to the developing fetus, particularly oxygen and glucose. Increased expression of the cytoprotective mitochondrial peptide, humanin (HN), and the glucose transporter 8, GLUT8, has been reported under conditions of hypoxic stress. However, the presence and cellular localization of HN and GLUT8 in IUGR-related placental pathology remain unexplored. Thus, we undertook this study to investigate placental expression of HN and GLUT8 in IUGR-affected versus normal pregnancies. Results We found 1) increased HN expression in human IUGR-affected pregnancies on the maternal aspect of the placenta (extravillous trophoblastic (EVT) cytoplasm) compared to control (i.e. appropriate for gestational age) pregnancies, and a concomitant increase in GLUT8 expression in the same compartment, 2) HN and GLUT8 showed a protein-protein interaction by co-immunoprecipitation, 3) elevated HN and GLUT8 levels in vitro under simulated hypoxia in human EVT cells, HTR8/SVneo, and 4) increased HN expression but attenuated GLUT8 expression in vitro under serum deprivation in HTR8/SVneo cells. Conclusions There was elevated HN expression with cytoplasmic localization to EVTs on the maternal aspect of the human placenta affected by IUGR, also associated with increased GLUT8 expression. We found that while hypoxia increased both HN and GLUT8, serum deprivation increased HN expression alone. Also, a protein-protein interaction between HN and GLUT8 suggests that their interaction may fulfill a biologic role that requires interdependency. Future investigations delineating molecular interactions between these proteins are required to fully uncover their role in IUGR-affected pregnancies.
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Affiliation(s)
- Carla Janzen
- Department of Obstetrics and Gynecology, Division of Maternal-Fetal Medicine, David Geffen School of Medicine at UCLA, Los Angeles, California, United States of America
- * E-mail:
| | - Margarida Y. Y. Lei
- Department of Obstetrics and Gynecology, Division of Maternal-Fetal Medicine, David Geffen School of Medicine at UCLA, Los Angeles, California, United States of America
| | - Il Seok D. Jeong
- Department of Pediatrics, Division of Endocrinology, David Geffen School of Medicine at UCLA, Los Angeles, California, United States of America
- Neonatal Research Center of the UCLA Children’s Discovery and Innovation Institute, David Geffen School of Medicine at UCLA, Los Angeles, California, United States of America
| | - Amit Ganguly
- Neonatal Research Center of the UCLA Children’s Discovery and Innovation Institute, David Geffen School of Medicine at UCLA, Los Angeles, California, United States of America
- Department of Pediatrics, Division of Neonatology, David Geffen School of Medicine at UCLA, Los Angeles, California, United States of America
| | - Peggy Sullivan
- Department of Pathology and Laboratory Medicine, David Geffen School of Medicine at UCLA, Los Angeles, California, United States of America
| | - Vladislava Paharkova
- Department of Pediatrics, Division of Endocrinology, David Geffen School of Medicine at UCLA, Los Angeles, California, United States of America
- Neonatal Research Center of the UCLA Children’s Discovery and Innovation Institute, David Geffen School of Medicine at UCLA, Los Angeles, California, United States of America
| | - Gina Capodanno
- Department of Pediatrics, Division of Endocrinology, David Geffen School of Medicine at UCLA, Los Angeles, California, United States of America
- Neonatal Research Center of the UCLA Children’s Discovery and Innovation Institute, David Geffen School of Medicine at UCLA, Los Angeles, California, United States of America
| | - Hiromi Nakamura
- Department of Pediatrics, Division of Endocrinology, David Geffen School of Medicine at UCLA, Los Angeles, California, United States of America
- Neonatal Research Center of the UCLA Children’s Discovery and Innovation Institute, David Geffen School of Medicine at UCLA, Los Angeles, California, United States of America
| | - Alix Perry
- Department of Obstetrics and Gynecology, Division of Maternal-Fetal Medicine, David Geffen School of Medicine at UCLA, Los Angeles, California, United States of America
| | - Bo-Chul Shin
- Neonatal Research Center of the UCLA Children’s Discovery and Innovation Institute, David Geffen School of Medicine at UCLA, Los Angeles, California, United States of America
- Department of Pediatrics, Division of Neonatology, David Geffen School of Medicine at UCLA, Los Angeles, California, United States of America
| | - Kuk-Wha Lee
- Department of Pediatrics, Division of Endocrinology, David Geffen School of Medicine at UCLA, Los Angeles, California, United States of America
- Neonatal Research Center of the UCLA Children’s Discovery and Innovation Institute, David Geffen School of Medicine at UCLA, Los Angeles, California, United States of America
| | - Sherin U. Devaskar
- Neonatal Research Center of the UCLA Children’s Discovery and Innovation Institute, David Geffen School of Medicine at UCLA, Los Angeles, California, United States of America
- Department of Pediatrics, Division of Neonatology, David Geffen School of Medicine at UCLA, Los Angeles, California, United States of America
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Kim SJ, Xiao J, Wan J, Cohen P, Yen K. Mitochondrially derived peptides as novel regulators of metabolism. J Physiol 2017; 595:6613-6621. [PMID: 28574175 DOI: 10.1113/jp274472] [Citation(s) in RCA: 124] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2017] [Accepted: 05/26/2017] [Indexed: 12/22/2022] Open
Abstract
Mitochondrially derived peptides represent a new class of circulating signalling molecules. Humanin, the first member of this class, has been shown to have several metabolic effects such as reducing weight gain and visceral fat and increasing glucose-stimulated insulin release. The discovery of several other new members, such as MOTS-c and SHLP1-6, has further added to this group. These new peptides have also been found to affect metabolism with MOTS-c potently decreasing weight gain in mice on a high-fat diet. This review covers the basic biology of this class of peptides and discusses the relevance to organismal metabolism.
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Affiliation(s)
- Su-Jeong Kim
- Leonard Davis School of Gerontology, University of Southern California, Los Angeles, CA, USA
| | - Jialin Xiao
- Leonard Davis School of Gerontology, University of Southern California, Los Angeles, CA, USA
| | - Junxiang Wan
- Leonard Davis School of Gerontology, University of Southern California, Los Angeles, CA, USA
| | - Pinchas Cohen
- Leonard Davis School of Gerontology, University of Southern California, Los Angeles, CA, USA
| | - Kelvin Yen
- Leonard Davis School of Gerontology, University of Southern California, Los Angeles, CA, USA
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