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Pinto-Souza CC, Kaihara JNS, Nunes PR, Mastella MH, Rossini BC, Cavecci-Mendonça B, Cavalli RDC, dos Santos LD, Sandrim VC. Different Proteomic Profiles Regarding Antihypertensive Therapy in Preeclampsia Pregnant. Int J Mol Sci 2024; 25:8738. [PMID: 39201423 PMCID: PMC11354552 DOI: 10.3390/ijms25168738] [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: 06/25/2024] [Revised: 07/22/2024] [Accepted: 08/07/2024] [Indexed: 09/02/2024] Open
Abstract
Preeclampsia (PE) is a hypertensive pregnancy syndrome associated with target organ damage and increased cardiovascular risks, necessitating antihypertensive therapy. However, approximately 40% of patients are nonresponsive to treatment, which results in worse clinical outcomes. This study aimed to compare circulating proteomic profiles and identify differentially expressed proteins among 10 responsive (R-PE), 10 nonresponsive (NR-PE) patients, and 10 healthy pregnant controls (HP). We also explored correlations between these proteins and clinical data. Plasma protein relative quantification was performed using mass spectrometry, followed by bioinformatics analyses with the UniProt database, PatternLab for Proteomics 4.0, and MetaboAnalyst software (version 6.0). Considering a fold change of 1.5, four proteins were differentially expressed between NR-PE and R-PE: one upregulated (fibronectin) and three downregulated (pregnancy-specific beta-1-glycoprotein 1, complement C4B, and complement C4A). Between NR-PE and HP, six proteins were differentially expressed: two upregulated (clusterin and plasmin heavy chain A) and four downregulated (apolipoprotein L1, heparin cofactor II, complement C4B, and haptoglobin-related protein). Three proteins were differentially expressed between R-PE and HP: one downregulated (transthyretin) and two upregulated (apolipoprotein C1 and hemoglobin subunit beta). These findings suggest a complex interplay of these proteins involved in inflammatory, immune, and metabolic processes with antihypertensive therapy responsiveness and PE pathophysiology.
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Affiliation(s)
- Caroline C. Pinto-Souza
- Department of Biophysics and Pharmacology, Institute of Biosciences of Botucatu (IBB), São Paulo State University (UNESP), Botucatu 18618-689, SP, Brazil; (C.C.P.-S.); (J.N.S.K.); (P.R.N.); (M.H.M.)
| | - Julyane N. S. Kaihara
- Department of Biophysics and Pharmacology, Institute of Biosciences of Botucatu (IBB), São Paulo State University (UNESP), Botucatu 18618-689, SP, Brazil; (C.C.P.-S.); (J.N.S.K.); (P.R.N.); (M.H.M.)
| | - Priscila R. Nunes
- Department of Biophysics and Pharmacology, Institute of Biosciences of Botucatu (IBB), São Paulo State University (UNESP), Botucatu 18618-689, SP, Brazil; (C.C.P.-S.); (J.N.S.K.); (P.R.N.); (M.H.M.)
| | - Moises H. Mastella
- Department of Biophysics and Pharmacology, Institute of Biosciences of Botucatu (IBB), São Paulo State University (UNESP), Botucatu 18618-689, SP, Brazil; (C.C.P.-S.); (J.N.S.K.); (P.R.N.); (M.H.M.)
| | - Bruno C. Rossini
- Biotechnology Institute (IBTEC), São Paulo State University (UNESP), Botucatu 18618-687, SP, Brazil; (B.C.R.); (B.C.-M.); (L.D.d.S.)
| | - Bruna Cavecci-Mendonça
- Biotechnology Institute (IBTEC), São Paulo State University (UNESP), Botucatu 18618-687, SP, Brazil; (B.C.R.); (B.C.-M.); (L.D.d.S.)
- Center for the Study of Venoms and Venomous Animals (CEVAP), São Paulo State University (UNESP), Botucatu 18619-002, SP, Brazil
| | - Ricardo de Carvalho Cavalli
- Department of Gynecology and Obstetrics, Faculty of Medicine of Ribeirao Preto, University of Sao Paulo (USP), Ribeirao Preto 14049-900, SP, Brazil;
| | - Lucilene D. dos Santos
- Biotechnology Institute (IBTEC), São Paulo State University (UNESP), Botucatu 18618-687, SP, Brazil; (B.C.R.); (B.C.-M.); (L.D.d.S.)
| | - Valeria C. Sandrim
- Department of Biophysics and Pharmacology, Institute of Biosciences of Botucatu (IBB), São Paulo State University (UNESP), Botucatu 18618-689, SP, Brazil; (C.C.P.-S.); (J.N.S.K.); (P.R.N.); (M.H.M.)
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Wei XH, Liao LY, Yin YX, Xu Q, Xie SS, Liu M, Gao LB, Chen HQ, Zhou R. Overexpression of long noncoding RNA DUXAP8 inhibits ER-phagy through activating AKT/mTOR signaling and contributes to preeclampsia. Cell Mol Life Sci 2024; 81:336. [PMID: 39120751 PMCID: PMC11335266 DOI: 10.1007/s00018-024-05385-y] [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: 04/05/2024] [Revised: 07/09/2024] [Accepted: 07/29/2024] [Indexed: 08/10/2024]
Abstract
Preeclampsia (PE) is a life-threatening pregnancy-specific complication with controversial mechanisms and no effective treatment except delivery is available. Currently, increasing researchers suggested that PE shares pathophysiologic features with protein misfolding/aggregation disorders, such as Alzheimer disease (AD). Evidences have proposed defective autophagy as a potential source of protein aggregation in PE. Endoplasmic reticulum-selective autophagy (ER-phagy) plays a critical role in clearing misfolded proteins and maintaining ER homeostasis. However, its roles in the molecular pathology of PE remain unclear. We found that lncRNA DUXAP8 was upregulated in preeclamptic placentae and significantly correlated with clinical indicators. DUXAP8 specifically binds to PCBP2 and inhibits its ubiquitination-mediated degradation, and decreased levels of PCBP2 reversed the activation effect of DUXAP8 overexpression on AKT/mTOR signaling pathway. Function experiments showed that DUXAP8 overexpression inhibited trophoblastic proliferation, migration, and invasion of HTR-8/SVneo and JAR cells. Moreover, pathological accumulation of swollen and lytic ER (endoplasmic reticulum) was observed in DUXAP8-overexpressed HTR8/SVneo cells and PE placental villus trophoblast cells, which suggesting that ER clearance ability is impaired. Further studies found that DUXAP8 overexpression impaired ER-phagy and caused protein aggregation medicated by reduced FAM134B and LC3II expression (key proteins involved in ER-phagy) via activating AKT/mTOR signaling pathway. The increased level of FAM134B significantly reversed the inhibitory effect of DUXAP8 overexpression on the proliferation, migration, and invasion of trophoblasts. In vivo, DUXAP8 overexpression through tail vein injection of adenovirus induced PE-like phenotypes in pregnant rats accompanied with activated AKT/mTOR signaling, decreased expression of FAM134B and LC3-II proteins and increased protein aggregation in placental tissues. Our study reveals the important role of lncRNA DUXAP8 in regulating trophoblast biological behaviors through FAM134B-mediated ER-phagy, providing a new theoretical basis for understanding the pathogenesis of PE.
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Affiliation(s)
- Xiao-Hong Wei
- Department of Obstetrics and Gynecology, Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University) , Ministry of Education, West China Second University Hospital, Sichuan University, NHC Key Laboratory of Chronobiology, Sichuan University, Chengdu, Sichuan, P.R. China
| | - Ling-Yun Liao
- Department of Obstetrics and Gynecology, Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University) , Ministry of Education, West China Second University Hospital, Sichuan University, NHC Key Laboratory of Chronobiology, Sichuan University, Chengdu, Sichuan, P.R. China
| | - Yang-Xue Yin
- Department of Obstetrics and Gynecology, Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University) , Ministry of Education, West China Second University Hospital, Sichuan University, NHC Key Laboratory of Chronobiology, Sichuan University, Chengdu, Sichuan, P.R. China
| | - Qin Xu
- Department of Obstetrics and Gynecology, Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University) , Ministry of Education, West China Second University Hospital, Sichuan University, NHC Key Laboratory of Chronobiology, Sichuan University, Chengdu, Sichuan, P.R. China
| | - Shuang-Shuang Xie
- Department of Obstetrics and Gynecology, Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University) , Ministry of Education, West China Second University Hospital, Sichuan University, NHC Key Laboratory of Chronobiology, Sichuan University, Chengdu, Sichuan, P.R. China
| | - Min Liu
- Department of Obstetrics and Gynecology, Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University) , Ministry of Education, West China Second University Hospital, Sichuan University, NHC Key Laboratory of Chronobiology, Sichuan University, Chengdu, Sichuan, P.R. China
| | - Lin-Bo Gao
- Center for Translational Medicine, Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, 610041, P.R. China
| | - Hong-Qin Chen
- Department of Obstetrics and Gynecology, Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University) , Ministry of Education, West China Second University Hospital, Sichuan University, NHC Key Laboratory of Chronobiology, Sichuan University, Chengdu, Sichuan, P.R. China
| | - Rong Zhou
- Department of Obstetrics and Gynecology, Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University) , Ministry of Education, West China Second University Hospital, Sichuan University, NHC Key Laboratory of Chronobiology, Sichuan University, Chengdu, Sichuan, P.R. China.
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Huang Z, Cheng S, Jash S, Fierce J, Agudelo A, Higashiyama T, Hanna N, Nakashima A, Saito S, Padbury J, Schuster J, Sharma S. Exploiting sweet relief for preeclampsia by targeting autophagy-lysosomal machinery and proteinopathy. Exp Mol Med 2024; 56:1206-1220. [PMID: 38760513 PMCID: PMC11148015 DOI: 10.1038/s12276-024-01234-x] [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: 08/25/2023] [Revised: 02/02/2024] [Accepted: 02/27/2024] [Indexed: 05/19/2024] Open
Abstract
The etiology of preeclampsia (PE), a severe complication of pregnancy with several clinical manifestations and a high incidence of maternal and fetal morbidity and mortality, remains unclear. This issue is a major hurdle for effective treatment strategies. We recently demonstrated that PE exhibits an Alzheimer-like etiology of impaired autophagy and proteinopathy in the placenta. Targeting of these pathological pathways may be a novel therapeutic strategy for PE. Stimulation of autophagy with the natural disaccharide trehalose and its lacto analog lactotrehalose in hypoxia-exposed primary human trophoblasts restored autophagy, inhibited the accumulation of toxic protein aggregates, and restored the ultrastructural features of autophagosomes and autolysosomes. Importantly, trehalose and lactotrehalose inhibited the onset of PE-like features in a humanized mouse model by normalizing autophagy and inhibiting protein aggregation in the placenta. These disaccharides restored the autophagy-lysosomal biogenesis machinery by increasing nuclear translocation of the master transcriptional regulator TFEB. RNA-seq analysis of the placentas of mice with PE indicated the normalization of the PE-associated transcriptome profile in response to trehalose and lactotrehalose. In summary, our results provide a novel molecular rationale for impaired autophagy and proteinopathy in patients with PE and identify treatment with trehalose and its lacto analog as promising therapeutic options for this severe pregnancy complication.
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Affiliation(s)
- Zheping Huang
- Department of Pediatrics, Women and Infants Hospital of Rhode Island, Warren Alpert Medical School of Brown University, Providence, RI, 02905, USA
| | - Shibin Cheng
- Department of Pediatrics, Women and Infants Hospital of Rhode Island, Warren Alpert Medical School of Brown University, Providence, RI, 02905, USA
| | - Sukanta Jash
- Department of Pediatrics, Women and Infants Hospital of Rhode Island, Warren Alpert Medical School of Brown University, Providence, RI, 02905, USA
| | - Jamie Fierce
- Department of Pediatrics, Women and Infants Hospital of Rhode Island, Warren Alpert Medical School of Brown University, Providence, RI, 02905, USA
| | - Anthony Agudelo
- Department of Pediatrics, Women and Infants Hospital of Rhode Island, Warren Alpert Medical School of Brown University, Providence, RI, 02905, USA
| | | | - Nazeeh Hanna
- Division of Neonatology, Department of Pediatrics, New York University Long Island School of Medicine, Mineola, New York, NY, USA
| | - Akitoshi Nakashima
- Department of Obstetrics and Gynecology, Faculty of Medicine, University of Toyama, Toyama, Japan
| | - Shigeru Saito
- Department of Obstetrics and Gynecology, Faculty of Medicine, University of Toyama, Toyama, Japan
| | - James Padbury
- Department of Pediatrics, University of California, San Francisco, CA, USA
| | - Jessica Schuster
- Department of Pediatrics, Women and Infants Hospital of Rhode Island, Warren Alpert Medical School of Brown University, Providence, RI, 02905, USA
| | - Surendra Sharma
- Department of Pediatrics, Women and Infants Hospital of Rhode Island, Warren Alpert Medical School of Brown University, Providence, RI, 02905, USA.
- Department of Obstetrics and Gynecology, University of Texas Medical Branch, Galveston, TX, 77555, USA.
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Arafa A, Kashima R, Shimamoto K, Kawachi H, Teramoto M, Sakai Y, Gao Q, Matsumoto C, Kokubo Y. Hypertensive disorders of pregnancy and the risk of dementia: a systematic review and meta-analysis of cohort studies. Hypertens Res 2024; 47:859-866. [PMID: 38040840 DOI: 10.1038/s41440-023-01520-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Revised: 10/16/2023] [Accepted: 11/05/2023] [Indexed: 12/03/2023]
Abstract
This study aimed to investigate the association between hypertensive disorders of pregnancy (HDP) and subsequent risk of dementia using a systematic review and meta-analysis of cohort studies. We searched PubMed and Scopus for eligible studies that investigated the association between HDP and dementia risk. Using the random-effects model, pooled hazard ratio (HR) and 95% confidence interval (CI) of dementia risk in women with HDP were calculated. We applied the I2 statistic to measure heterogeneity across studies and the test for funnel plot asymmetry to evaluate publication bias. Six cohort studies were eligible: three from the United States, two from Sweden, and one from Denmark. When combined, HDP was associated with the risk of dementia: pooled HR (95% CI) = 1.31 (1.12, 1.53). The heterogeneity across studies was moderate (I2 = 47.3%, p-heterogeneity = 0.091), but no signs of publication bias were detected. The association of HDP with vascular dementia was stronger than that with Alzheimer's disease: pooled HRs (95% CIs) = 1.66 (1.13, 2.43) and 1.29 (0.97, 1.72), respectively. In conclusion, HDP was associated with a higher risk of dementia and this association was more prominent with vascular dementia.
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Affiliation(s)
- Ahmed Arafa
- Department of Preventive Cardiology, National Cerebral and Cardiovascular Center, Suita, Japan.
- Department of Public Health, Faculty of Medicine, Beni-Suef University, Beni-Suef, Egypt.
| | - Rena Kashima
- Department of Preventive Cardiology, National Cerebral and Cardiovascular Center, Suita, Japan
- Department of Cardiovascular Pathophysiology and Therapeutics, Graduate School of Medicine, Osaka University, Suita, Japan
| | - Keiko Shimamoto
- Department of Preventive Cardiology, National Cerebral and Cardiovascular Center, Suita, Japan
- Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center, Suita, Japan
| | - Haruna Kawachi
- Department of Preventive Cardiology, National Cerebral and Cardiovascular Center, Suita, Japan
- Department of Environmental Medicine and Population Sciences, Graduate School of Medicine, Osaka University, Suita, Japan
| | - Masayuki Teramoto
- Department of Preventive Cardiology, National Cerebral and Cardiovascular Center, Suita, Japan
| | - Yukie Sakai
- Department of Preventive Cardiology, National Cerebral and Cardiovascular Center, Suita, Japan
| | - Qi Gao
- Department of Preventive Cardiology, National Cerebral and Cardiovascular Center, Suita, Japan
| | - Chisa Matsumoto
- Department of Preventive Cardiology, National Cerebral and Cardiovascular Center, Suita, Japan
- Department of Cardiology, Center for Health Surveillance and Preventive Medicine, Tokyo Medical University Hospital, Shinjuku, Japan
| | - Yoshihiro Kokubo
- Department of Preventive Cardiology, National Cerebral and Cardiovascular Center, Suita, Japan
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Derakhshan A, Männistö T, Chen L, Osinga JAJ, Ashoor G, Lu X, Bliddal S, Tao FB, Brown SJ, Vaidya B, Hattersley AT, Itoh S, Popova PV, Aminorroaya A, Kishi R, Kianpour M, Vasukova EA, López-Bermejo A, Oken E, Chatzi L, Vafeiadi M, Bramer WM, Bassols J, Lertxundi A, Fernández-Somoano A, Carrasco P, Auvinen J, Huang K, Feldt-Rasmussen U, Grineva EN, Alexander EK, Pearce EN, Chaker L, Walsh JP, Peeters RP, Guxens M, Suvanto E, Nicolaides KH, Korevaar TIM. Association of Gestational Free and Total Triiodothyronine With Gestational Hypertension, Preeclampsia, Preterm Birth, and Birth Weight: An Individual Participant Data Meta-analysis. J Clin Endocrinol Metab 2024; 109:e1290-e1298. [PMID: 37878891 PMCID: PMC10876397 DOI: 10.1210/clinem/dgad631] [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: 07/21/2023] [Revised: 09/22/2023] [Accepted: 10/20/2023] [Indexed: 10/27/2023]
Abstract
CONTEXT Triiodothyronine (T3) is the bioactive form of thyroid hormone. In contrast to thyroid-stimulating hormone and free thyroxine, we lack knowledge on the association of gestational T3 with adverse obstetric outcomes. OBJECTIVE To investigate the associaiton of gestational free or total T3 (FT3 or TT3) with adverse obstetric outcomes. METHODS We collected individual participant data from prospective cohort studies on gestational FT3 or TT3, adverse obstetric outcomes (preeclampsia, gestational hypertension, preterm birth and very preterm birth, small for gestational age [SGA], and large for gestational age [LGA]), and potential confounders. We used mixed-effects regression models adjusting for potential confounders. RESULTS The final study population comprised 33 118 mother-child pairs of which 27 331 had data on FT3 and 16 164 on TT3. There was a U-shaped association of FT3 with preeclampsia (P = .0069) and a J-shaped association with the risk of gestational hypertension (P = .029). Higher TT3 was associated with a higher risk of gestational hypertension (OR per SD of TT3 1.20, 95% CI 1.08 to 1.33; P = .0007). A lower TT3 but not FT3 was associated with a higher risk of very preterm birth (OR 0.72, 95% CI 0.55 to 0.94; P = .018). TT3 but not FT3 was positively associated with birth weight (mean difference per 1 SD increase in TT3 12.8, 95% CI 6.5 to 19.1 g, P < .0001) but there was no association with SGA or LGA. CONCLUSION This study provides new insights on the association of gestational FT3 and TT3 with major adverse pregnancy outcomes that form the basis for future studies required to elucidate the effects of thyroid function on pregnancy outcomes. Based on the current study, routine FT3 or TT3 measurements for the assessment of thyroid function during pregnancy do not seem to be of added value in the risk assessment for adverse outcomes.
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Affiliation(s)
- Arash Derakhshan
- Department of Internal Medicine, Erasmus University Medical Center, Rotterdam 3015 GD, The Netherlands
- Academic Center for Thyroid Diseases, Erasmus University Medical Center, Rotterdam 3015 GD, The Netherlands
| | - Tuija Männistö
- Northern Finland Laboratory Center Nordlab and Medical Research Center Oulu, Oulu University Hospital and University of Oulu, Oulu 90570, Finland
| | - Liangmiao Chen
- Department of Endocrinology and Rui'an Center of the Chinese-American Research Institute for Diabetic Complications, Third Affiliated Hospital of Wenzhou Medical University, Wenzhou 325035, China
| | - Joris A J Osinga
- Department of Internal Medicine, Erasmus University Medical Center, Rotterdam 3015 GD, The Netherlands
- Academic Center for Thyroid Diseases, Erasmus University Medical Center, Rotterdam 3015 GD, The Netherlands
| | - Ghalia Ashoor
- Harris Birthright Research Center for Fetal Medicine, King’s College Hospital, London SE5 9RS, UK
| | - Xuemian Lu
- Department of Endocrinology and Rui'an Center of the Chinese-American Research Institute for Diabetic Complications, Third Affiliated Hospital of Wenzhou Medical University, Wenzhou 325035, China
| | - Sofie Bliddal
- Department of Medical Endocrinology and Metabolism, Copenhagen University Hospital, Rigshospitalet, Copenhagen 2100, Denmark
- Department of Clinical Medicine, Faculty of Health and Clinical Sciences, Copenhagen University, Copenhagen 1172, Denmark
| | - Fang-Biao Tao
- Department of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University, Hefei, Anhui 230032, China
- Anhui Provincial Key Laboratory of Population Health & Aristogenics, Hefei, Anhui 230032, China
| | - Suzanne J Brown
- Department of Endocrinology and Diabetes, Sir Charles Gairdner Hospital, Nedlands 6009, Perth, Western Australia, Australia
| | - Bijay Vaidya
- Department of Endocrinology, Royal Devon University Hospital NHS Foundation Trust, University of Exeter Medical School, Exeter EX1 2LU, UK
| | - Andrew T Hattersley
- Institute of Biomedical and Clinical Science, University of Exeter Medical School, Exeter EX1 2LU, UK
| | - Sachiko Itoh
- Center for Environmental and Health Sciences, Hokkaido University, Sapporo, Hokkaido 060-0808, Japan
| | - Polina V Popova
- World-Class Research Center for Personalized Medicine and institute of Endocrinology, Almazov National Medical Research Centre, Saint Petersburg 197341, Russia
- Department of Internal Diseases and Endocrinology, St.Petersburg Pavlov State Medical University, Saint Petersburg 197341, Russian Federation
| | - Ashraf Aminorroaya
- Isfahan Endocrine and Metabolism Research Center, Isfahan University of Medical Sciences, Isfahan 81745-33871, Iran
| | - Reiko Kishi
- Center for Environmental and Health Sciences, Hokkaido University, Sapporo, Hokkaido 060-0808, Japan
| | - Maryam Kianpour
- Isfahan Endocrine and Metabolism Research Center, Isfahan University of Medical Sciences, Isfahan 81745-33871, Iran
| | - Elena A Vasukova
- World-Class Research Center for Personalized Medicine and institute of Endocrinology, Almazov National Medical Research Centre, Saint Petersburg 197341, Russia
| | - Abel López-Bermejo
- Pediatric Endocrinology Research Group, Girona Biomedical Research Institute (IDIBGI) & Dr. Josep Trueta Hospital, Girona 17007, Spain
- Departament de Ciències Mèdiques, Universitat de Girona, Girona 17007, Spain
| | - Emily Oken
- Division of Chronic Disease Research Across the Lifecourse, Department of Population Medicine, Harvard Medical School, Boston, MA 02215, USA
| | - Leda Chatzi
- Department of Population and Public Health Sciences UoSC, Keck School of Medicine, Los Angeles, CA 90033, USA
| | - Marina Vafeiadi
- Department of Social Medicine, School of Medicine, University of Crete, Heraklion 700 13, Crete, Greece
| | - Wichor M Bramer
- Medical Library, Erasmus University Medical Centre, GD Rotterdam 3015, The Netherlands
| | - Judit Bassols
- Maternal-Fetal Metabolic Research Group, Girona Biomedical Research Institute (IDIBGI), Dr. Josep Trueta Hospital, Girona 17007, Spain
| | - Aitana Lertxundi
- Spanish Consortium for Research on Epidemiology and Public Health (CIBERESP), Instituto de Salud Carlos III, Madrid 28029, Spain
- Department of Preventive Medicine and Public Health, University of Basque Country, Leioa 48940, Spain
- BIODONOSTIA Health Research Institute, San Sebastian 20014, Spain
| | - Ana Fernández-Somoano
- Spanish Consortium for Research on Epidemiology and Public Health (CIBERESP), Instituto de Salud Carlos III, Madrid 28029, Spain
- Unit of Molecular Cancer Epidemiology, University Institute of Oncology of the Principality of Asturias (IUOPA)–Department of Medicine, University of Oviedo, Oviedo 33006, Asturias, Spain
- Institute of Health Research of the Principality of Asturias (ISPA), Oviedo 33006, Spain
| | - Paula Carrasco
- Epidemiology and Environmental Health Joint Research Unit, FISABIO−Universitat Jaume I−Universitat de València, Valencia 46020, Spain
- Department of Medicine, Universitat Jaume I, Castellón de la Plana 12071, Spain
| | - Juha Auvinen
- Medical Research Center Oulu, Oulu University Hospital, and Center for Life Course Health Research, University of Oulu, Oulu 90570, Finland
| | - Kun Huang
- Department of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University, Anhui 230032, China
- Scientific Research Center in Preventive Medicine, School of Public Health, Anhui Medical University, Anhui 230032, China
| | - Ulla Feldt-Rasmussen
- Department of Medical Endocrinology and Metabolism, Copenhagen University Hospital, Rigshospitalet, Copenhagen 2100, Denmark
- Department of Clinical Medicine, Faculty of Health and Clinical Sciences, Copenhagen University, Copenhagen 1172, Denmark
| | - Elena N Grineva
- World-Class Research Center for Personalized Medicine and institute of Endocrinology, Almazov National Medical Research Centre, Saint Petersburg 197341, Russia
| | - Erik K Alexander
- Division of Endocrinology, Hypertension and Diabetes, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA 02215, USA
| | - Elizabeth N Pearce
- Section of Endocrinology, Diabetes, and Nutrition, Boston University School of Medicine, Boston, MA 02215, USA
| | - Layal Chaker
- Department of Internal Medicine, Erasmus University Medical Center, Rotterdam 3015 GD, The Netherlands
- Academic Center for Thyroid Diseases, Erasmus University Medical Center, Rotterdam 3015 GD, The Netherlands
| | - John P Walsh
- Department of Endocrinology and Diabetes, Sir Charles Gairdner Hospital, Nedlands 6009, Perth, Western Australia, Australia
- Medical School, University of Western Australia, Crawley, WA 6009, Australia
| | - Robin P Peeters
- Department of Internal Medicine, Erasmus University Medical Center, Rotterdam 3015 GD, The Netherlands
- Academic Center for Thyroid Diseases, Erasmus University Medical Center, Rotterdam 3015 GD, The Netherlands
| | - Mònica Guxens
- Spanish Consortium for Research on Epidemiology and Public Health (CIBERESP), Instituto de Salud Carlos III, Madrid 28029, Spain
- ISGlobal, Barcelona 08003, Spain
- Pompeu Fabra University, Barcelona 08002, Spain
- Department of Child and Adolescent Psychiatry/Psychology, Erasmus University Medical Centre–Sophia Children’s Hospital, GD Rotterdam 3012, The Netherlands
| | - Eila Suvanto
- Department of Obstetrics and Gynecology and Medical Research Center Oulu, University of Oulu, Oulu 90570, Finland
| | - Kypros H Nicolaides
- Department of Women and Children’s Health, Faculty of Life Sciences and Medicine King’s College London, London WC2R 2LS, UK
| | - Tim I M Korevaar
- Department of Internal Medicine, Erasmus University Medical Center, Rotterdam 3015 GD, The Netherlands
- Academic Center for Thyroid Diseases, Erasmus University Medical Center, Rotterdam 3015 GD, The Netherlands
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Medegan Fagla B, Buhimschi IA. Protein Misfolding in Pregnancy: Current Insights, Potential Mechanisms, and Implications for the Pathogenesis of Preeclampsia. Molecules 2024; 29:610. [PMID: 38338354 PMCID: PMC10856193 DOI: 10.3390/molecules29030610] [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: 12/18/2023] [Revised: 01/19/2024] [Accepted: 01/21/2024] [Indexed: 02/12/2024] Open
Abstract
Protein misfolding disorders are a group of diseases characterized by supra-physiologic accumulation and aggregation of pathogenic proteoforms resulting from improper protein folding and/or insufficiency in clearance mechanisms. Although these processes have been historically linked to neurodegenerative disorders, such as Alzheimer's disease, evidence linking protein misfolding to other pathologies continues to emerge. Indeed, the deposition of toxic protein aggregates in the form of oligomers or large amyloid fibrils has been linked to type 2 diabetes, various types of cancer, and, in more recent years, to preeclampsia, a life-threatening pregnancy-specific disorder. While extensive physiological mechanisms are in place to maintain proteostasis, processes, such as aging, genetic factors, or environmental stress in the form of hypoxia, nutrient deprivation or xenobiotic exposures can induce failure in these systems. As such, pregnancy, a natural physical state that already places the maternal body under significant physiological stress, creates an environment with a lower threshold for aberrant aggregation. In this review, we set out to discuss current evidence of protein misfolding in pregnancy and potential mechanisms supporting a key role for this process in preeclampsia pathogenesis. Improving our understanding of this emerging pathophysiological process in preeclampsia can lead to vital discoveries that can be harnessed to create better diagnoses and treatment modalities for the disorder.
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Affiliation(s)
| | - Irina Alexandra Buhimschi
- Department of Obstetrics and Gynecology, College of Medicine, University of Illinois at Chicago, Chicago, IL 60612, USA;
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7
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Jash S, Banerjee S, Cheng S, Wang B, Qiu C, Kondo A, Ernerudh J, Zhou XZ, Lu KP, Sharma S. Cis P-tau is a central circulating and placental etiologic driver and therapeutic target of preeclampsia. Nat Commun 2023; 14:5414. [PMID: 37669931 PMCID: PMC10480164 DOI: 10.1038/s41467-023-41144-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Accepted: 08/24/2023] [Indexed: 09/07/2023] Open
Abstract
Preeclampsia (PE) is the leading cause of maternal and fetal mortality globally and may trigger dementia later in life in mothers and their offspring. However, the etiological drivers remain elusive. Cis P-tau is an early etiological driver and blood biomarker in pre-clinical Alzheimer's and after vascular or traumatic brain injury, which can be targeted by stereo-specific antibody, with clinical trials ongoing. Here we find significant cis P-tau in the placenta and serum of PE patients, and in primary human trophoblasts exposed to hypoxia or sera from PE patients due to Pin1 inactivation. Depletion of cis P-tau from PE patient sera by the antibody prevents their ability to disrupt trophoblast invasion and endovascular activity and to cause the PE-like pathological and clinical features in pregnant humanized tau mice. Our studies uncover that cis P-tau is a central circulating etiological driver and its stereo-specific antibody is valuable for early PE diagnosis and treatment.
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Affiliation(s)
- Sukanta Jash
- Departments of Pediatrics, Women and Infants Hospital, Warren Alpert Medical School, Brown University, Providence, RI, 02905, USA
| | - Sayani Banerjee
- Departments of Pediatrics, Women and Infants Hospital, Warren Alpert Medical School, Brown University, Providence, RI, 02905, USA
| | - Shibin Cheng
- Departments of Pediatrics, Women and Infants Hospital, Warren Alpert Medical School, Brown University, Providence, RI, 02905, USA
| | - Bin Wang
- Division of Translational Therapeutics, Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, 02215, USA
| | - Chenxi Qiu
- Division of Translational Therapeutics, Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, 02215, USA
| | - Asami Kondo
- Division of Translational Therapeutics, Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, 02215, USA
| | - Jan Ernerudh
- Department of Biomedical and Clinical Sciences, Linköping University, SE 58183, Linköping, Sweden
- Department of Clinical Immunology and Transfusion Medicine, Linköping University, SE 58183, Linköping, Sweden
| | - Xiao Zhen Zhou
- Departments of Biochemistry, Schulich School of Medicine & Dentistry, Western University, London, ON, N6G 2V4, Canada.
- Departments of Oncology, Schulich School of Medicine & Dentistry, Western University, London, ON, N6G 2V4, Canada.
- Departments of Pathology & Laboratory Medicine, Schulich School of Medicine & Dentistry, Western University, London, ON, N6G 2V4, Canada.
- Lawson Health Research Institute, Schulich School of Medicine & Dentistry, Western University, London, ON, N6G 2V4, Canada.
| | - Kun Ping Lu
- Departments of Biochemistry, Schulich School of Medicine & Dentistry, Western University, London, ON, N6G 2V4, Canada.
- Departments of Oncology, Schulich School of Medicine & Dentistry, Western University, London, ON, N6G 2V4, Canada.
- Robarts Research Institute, Schulich School of Medicine & Dentistry Western University, London, ON, N6G 2V4, Canada.
| | - Surendra Sharma
- Departments of Pediatrics, Women and Infants Hospital, Warren Alpert Medical School, Brown University, Providence, RI, 02905, USA.
- Departments of Pathology, Women and Infants Hospital, Warren Alpert Medical School, Brown University, Providence, RI, 02905, USA.
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8
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Cheng S, Huang Z, Nakashima A, Sharma S. Gestational Age-Dependent Regulation of Transthyretin in Mice during Pregnancy. BIOLOGY 2023; 12:1048. [PMID: 37626934 PMCID: PMC10451295 DOI: 10.3390/biology12081048] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Revised: 07/21/2023] [Accepted: 07/25/2023] [Indexed: 08/27/2023]
Abstract
Our prior studies have shown that protein misfolding and aggregation in the placenta are linked to the development of preeclampsia, a severe pregnancy complication. We identified transthyretin (TTR) as a key component of the aggregated protein complex. However, the regulation of native TTR in normal pregnancy remains unclear. In this study, we found that pregnant mice exhibited a remarkable and progressive decline in serum TTR levels through gestational day (gd) 12-14, followed by an increase in late pregnancy and postpartum. Meanwhile, serum albumin levels showed a modest but statistically significant increase throughout gestation. TTR protein and mRNA levels in the liver, a primary source of circulating TTR, mirrored the changes observed in serum TTR levels during gestation. Intriguingly, a similar pattern of TTR alteration was also observed in the serum of pregnant women and pregnant interleukin-10-knockout (IL-10-/-) mice with high inflammation background. In non-pregnant IL-10-/- mice, serum TTR levels were significantly lower than those in age-matched wild-type mice. Administration of IL-10 to non-pregnant IL-10-/- mice restored their serum TTR levels. Notably, dysregulation of TTR resulted in fewer implantation units, lower fetal weight, and smaller litter sizes in human TTR-overexpressing transgenic mice. Thus, TTR may play a pivotal role as a crucial regulator in normal pregnancy, and inflammation during pregnancy may contribute to the downregulation of serum TTR presence.
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Affiliation(s)
- Shibin Cheng
- Department of Pediatrics, Women & Infants Hospital, Rhode Island and Brown University, Providence, RI 02905, USA;
| | - Zheping Huang
- Department of Pediatrics, Women & Infants Hospital, Rhode Island and Brown University, Providence, RI 02905, USA;
| | - Akitoshi Nakashima
- Department of Obstetrics and Gynecology, Faculty of Medicine, University of Toyama, Toyama 930-8555, Japan;
| | - Surendra Sharma
- Department of Pediatrics, Women & Infants Hospital, Rhode Island and Brown University, Providence, RI 02905, USA;
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9
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Komsa-Penkova R, Krumova S, Langari A, Giosheva I, Gartcheva L, Danailova A, Topalova L, Stoyanova T, Strijkova V, Savov A, Todinova S. Blood Plasma Calorimetric Profiles of Women with Preeclampsia: Effect of Oxidative Stress. Antioxidants (Basel) 2023; 12:antiox12051032. [PMID: 37237898 DOI: 10.3390/antiox12051032] [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: 03/31/2023] [Revised: 04/23/2023] [Accepted: 04/28/2023] [Indexed: 05/28/2023] Open
Abstract
Preeclampsia is a pregnancy-related disease with poor placentation and presents itself through hypertension and proteinuria. The disease is also associated with the oxidative modification of proteins in maternal blood plasma. In this work, we combine differential scanning calorimetry (DSC), capillary electrophoresis, and atomic force microscopy (AFM) to evaluate the changes in the plasma denaturation profiles of patients with preeclampsia (PE) as compared with those of pregnant controls. Our results demonstrate that the last trimester of pregnancy substantially affects the main calorimetric characteristics of blood plasma from pregnant controls relative to nonpregnant women. These variations correlate well with the changes in protein levels determined by electrophoresis. DSC analysis revealed significant deviations in the plasma heat capacity profiles of preeclamptic patients from those of pregnant controls. These alterations are expressed mainly in a substantial reduction in albumin-assigned transitions and an upward shift in its denaturation temperature, lower calorimetric enthalpy changes, and a reduced ratio of heat capacity in the albumin/globulin-assigned thermal transitions, which are more pronounced in severe PE cases. The in vitro oxidation model shows that the alteration of PE thermograms is partly related to protein oxidation. AFM data detected numerous aggregate formations in the plasma of PE samples and fewer small ones in the pregnant controls, which are not found in healthy nonpregnant samples. These findings could serve as a basis for further investigations to reveal the possible relationship between albumin thermal stabilization, the increased inflammatory state and oxidative stress, and protein misfolding in preeclampsia.
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Affiliation(s)
- Regina Komsa-Penkova
- Department of Biochemistry, Medical University-Pleven, Sv. Kliment Ohridski Str. 1, 5800 Pleven, Bulgaria
| | - Sashka Krumova
- Institute of Biophysics and Biomedical Engineering, Bulgarian Academy of Sciences, "Acad. G. Bontchev" Str. 21, 1113 Sofia, Bulgaria
| | - Ariana Langari
- Institute of Biophysics and Biomedical Engineering, Bulgarian Academy of Sciences, "Acad. G. Bontchev" Str. 21, 1113 Sofia, Bulgaria
| | - Ina Giosheva
- Institute of Biophysics and Biomedical Engineering, Bulgarian Academy of Sciences, "Acad. G. Bontchev" Str. 21, 1113 Sofia, Bulgaria
- National Genetics Laboratory, University Hospital of Obstetrics and Gynecology "Maichin Dom", Medical University Sofia, Zdrave Str. 2, 1431 Sofia, Bulgaria
| | - Lidia Gartcheva
- National Specialized Hospital for Active Treating of Haematological Diseases, 1756 Sofia, Bulgaria
| | - Avgustina Danailova
- Institute of Biophysics and Biomedical Engineering, Bulgarian Academy of Sciences, "Acad. G. Bontchev" Str. 21, 1113 Sofia, Bulgaria
| | - Lora Topalova
- Institute of Biophysics and Biomedical Engineering, Bulgarian Academy of Sciences, "Acad. G. Bontchev" Str. 21, 1113 Sofia, Bulgaria
| | - Tanya Stoyanova
- Institute of Biophysics and Biomedical Engineering, Bulgarian Academy of Sciences, "Acad. G. Bontchev" Str. 21, 1113 Sofia, Bulgaria
| | - Velichka Strijkova
- Institute of Biophysics and Biomedical Engineering, Bulgarian Academy of Sciences, "Acad. G. Bontchev" Str. 21, 1113 Sofia, Bulgaria
- Institute of Optical Materials and Technologies "Acad. Yordan Malinovski", Bulgarian Academy of Sciences, "Acad. G. Bontchev" Str. 109, 1113 Sofia, Bulgaria
| | - Alexey Savov
- National Genetics Laboratory, University Hospital of Obstetrics and Gynecology "Maichin Dom", Medical University Sofia, Zdrave Str. 2, 1431 Sofia, Bulgaria
| | - Svetla Todinova
- Institute of Biophysics and Biomedical Engineering, Bulgarian Academy of Sciences, "Acad. G. Bontchev" Str. 21, 1113 Sofia, Bulgaria
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10
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Young M, Tang M, Li H, Richard DJ, McLeod DSA, d'Emden MC, Richard K. Transthyretin binds soluble endoglin and increases its uptake by hepatocytes: A possible role for transthyretin in preeclampsia? Mol Cell Endocrinol 2023; 562:111851. [PMID: 36634839 DOI: 10.1016/j.mce.2023.111851] [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: 10/25/2022] [Revised: 01/05/2023] [Accepted: 01/09/2023] [Indexed: 01/11/2023]
Abstract
BACKGROUND Preeclampsia is a common but life-threatening condition of pregnancy. It is caused by poor placentation resulting in release of trophoblast material (including soluble endoglin (sEng)) into the maternal circulation leading to maternal vascular dysfunction and to the life-threatening condition of eclampsia. The only cure is early delivery, which can have lifelong consequences for the premature child. The thyroid hormone binding protein transthyretin is dysregulated in preeclampsia, however it is not known if this plays a role in disease pathology. We hypothesised that transthyretin may bind sEng and abrogate its negative effects by removing it from the maternal serum. METHODS The effect of transthyretin on hepatocyte uptake of Alexa-labelled sEng was measured using live cell imaging. Interactions between transthyretin, and sEng were investigated using molecular modelling, direct binding on CnBr Sepharose columns, confocal imaging, and measurement of fluorescence resonance energy transfer. RESULTS Transthyretin directly bound to sEng and increased its uptake by hepatocytes. This uptake was altered in the presence of transforming growth factor-β1 (TGF-β1). Molecular modelling predicted that transthyretin and TGF-β1 bind at the same site in sEng and may compete for binding. Endocytosed transthyretin and endoglin entered cells together and co-localised inside hepatocyte cells. CONCLUSION Transthyretin can bind sEng and increase its uptake from the extracellular medium. This suggests that increasing transthyretin levels or developing drugs that normalise or mimic transthyretin, may provide treatment options to reduce sEng induced vascular dysfunction.
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Affiliation(s)
- Melanie Young
- Conjoint Internal Medicine Laboratory, Chemical Pathology, Pathology Queensland, Queensland Health, Brisbane, Australia
| | - Ming Tang
- Queensland University of Technology (QUT), Cancer & Ageing Research Program, Centre for Genomics and Personalised Health, Translational Research Institute (TRI), Brisbane, Australia
| | - Huika Li
- Conjoint Internal Medicine Laboratory, Chemical Pathology, Pathology Queensland, Queensland Health, Brisbane, Australia
| | - Derek J Richard
- Queensland University of Technology (QUT), Cancer & Ageing Research Program, Centre for Genomics and Personalised Health, Translational Research Institute (TRI), Brisbane, Australia
| | - Donald S A McLeod
- Department of Endocrinology and Diabetes, Royal Brisbane and Women's Hospital, Brisbane, Australia; QIMR Berghofer Medical Research Institute, Brisbane, Australia
| | - Michael C d'Emden
- Department of Endocrinology and Diabetes, Royal Brisbane and Women's Hospital, Brisbane, Australia; School of Medicine, University of Queensland, Herston, Qld, 4029, Australia
| | - Kerry Richard
- Conjoint Internal Medicine Laboratory, Chemical Pathology, Pathology Queensland, Queensland Health, Brisbane, Australia; Queensland University of Technology (QUT), Cancer & Ageing Research Program, Centre for Genomics and Personalised Health, Translational Research Institute (TRI), Brisbane, Australia; Department of Endocrinology and Diabetes, Royal Brisbane and Women's Hospital, Brisbane, Australia; School of Medicine, University of Queensland, Herston, Qld, 4029, Australia.
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11
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Fosheim IK, Jacobsen DP, Sugulle M, Alnaes-Katjavivi P, Fjeldstad HES, Ueland T, Lekva T, Staff AC. Serum amyloid A1 and pregnancy zone protein in pregnancy complications and correlation with markers of placental dysfunction. Am J Obstet Gynecol MFM 2023; 5:100794. [PMID: 36334725 DOI: 10.1016/j.ajogmf.2022.100794] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Revised: 10/06/2022] [Accepted: 10/28/2022] [Indexed: 11/11/2022]
Abstract
BACKGROUND Hypertensive disorders of pregnancy (preeclampsia, gestational hypertension, and chronic hypertension), diabetes mellitus, and placental dysfunction confer an increased risk of long-term maternal cardiovascular disease. Preeclampsia is also associated with acute atherosis that involves lesions of uteroplacental spiral arteries, resembling early stages of atherosclerosis. Serum amyloid A1 is involved in hypercoagulability and atherosclerosis and may aggregate into amyloid-aggregations of misfolded proteins. Pregnancy zone protein may inhibit amyloid aggregation. Amyloid is involved in Alzheimer's disease and cardiovascular disease; it has been identified in preeclampsia, but its role in preeclampsia pathophysiology is unclear. OBJECTIVE We hypothesized that serum amyloid A1 would be increased and pregnancy zone protein decreased in hypertensive disorders of pregnancy and diabetic pregnancies and that serum amyloid A1 and pregnancy zone protein would correlate with placental dysfunction markers (fetal growth restriction and dysregulated angiogenic biomarkers) and acute atherosis. STUDY DESIGN Serum amyloid A1 is measurable in both the serum and plasma. In our study, plasma from 549 pregnancies (normotensive, euglycemic controls: 258; early-onset preeclampsia: 71; late-onset preeclampsia: 98; gestational hypertension: 30; chronic hypertension: 9; diabetes mellitus: 83) was assayed for serum amyloid A1 and pregnancy zone protein. The serum levels of angiogenic biomarkers soluble fms-like tyrosine kinase-1 and placental growth factor were available for 547 pregnancies, and the results of acute atherosis evaluation were available for 313 pregnancies. The clinical characteristics and circulating biomarkers were compared between the pregnancy groups using the Mann-Whitney U, chi-squared, or Fisher exact test as appropriate. Spearman's rho was calculated for assessing correlations. RESULTS In early-onset preeclampsia, serum amyloid A1 was increased compared with controls (17.1 vs 5.1 µg/mL, P<.001), whereas pregnancy zone protein was decreased (590 vs 892 µg/mL, P=.002). Pregnancy zone protein was also decreased in diabetes compared with controls (683 vs 892 µg/mL, P=.01). Serum amyloid A1 was associated with placental dysfunction (fetal growth restriction, elevated soluble fms-like tyrosine kinase-1 to placental growth factor ratio). Pregnancy zone protein correlated negatively with soluble fms-like tyrosine kinase-1 to placental growth factor ratio in all study groups. Acute atherosis was not associated with serum amyloid A1 or pregnancy zone protein. CONCLUSION Proteins involved in atherosclerosis, hypercoagulability, and protein misfolding are dysregulated in early-onset preeclampsia and placental dysfunction, which links them and potentially contributes to future maternal cardiovascular disease.
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Affiliation(s)
- Ingrid K Fosheim
- Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway (Drs Fosheim, Jacobsen, Sugulle, Alnaes-Katjavivi, Fjeldstad, Ueland, and Staff); Division of Obstetrics and Gynaecology, Oslo University Hospital, Oslo, Norway (Drs Fosheim, Jacobsen, Sugulle, Alnaes-Katjavivi, Fjeldstad, and Staff).
| | - Daniel P Jacobsen
- Division of Obstetrics and Gynaecology, Oslo University Hospital, Oslo, Norway (Drs Fosheim, Jacobsen, Sugulle, Alnaes-Katjavivi, Fjeldstad, and Staff)
| | - Meryam Sugulle
- Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway (Drs Fosheim, Jacobsen, Sugulle, Alnaes-Katjavivi, Fjeldstad, Ueland, and Staff); Division of Obstetrics and Gynaecology, Oslo University Hospital, Oslo, Norway (Drs Fosheim, Jacobsen, Sugulle, Alnaes-Katjavivi, Fjeldstad, and Staff)
| | - Patji Alnaes-Katjavivi
- Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway (Drs Fosheim, Jacobsen, Sugulle, Alnaes-Katjavivi, Fjeldstad, Ueland, and Staff); Division of Obstetrics and Gynaecology, Oslo University Hospital, Oslo, Norway (Drs Fosheim, Jacobsen, Sugulle, Alnaes-Katjavivi, Fjeldstad, and Staff)
| | - Heidi E S Fjeldstad
- Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway (Drs Fosheim, Jacobsen, Sugulle, Alnaes-Katjavivi, Fjeldstad, Ueland, and Staff); Division of Obstetrics and Gynaecology, Oslo University Hospital, Oslo, Norway (Drs Fosheim, Jacobsen, Sugulle, Alnaes-Katjavivi, Fjeldstad, and Staff)
| | - Thor Ueland
- Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway (Drs Fosheim, Jacobsen, Sugulle, Alnaes-Katjavivi, Fjeldstad, Ueland, and Staff); Research Institute of Internal Medicine, Oslo University Hospital, Oslo, Norway (Drs Ueland and Lekva); K.G. Jebsen Thrombosis Research and Expertise Center, University of Tromsø, Tromsø, Norway (Dr Ueland)
| | - Tove Lekva
- Research Institute of Internal Medicine, Oslo University Hospital, Oslo, Norway (Drs Ueland and Lekva)
| | - Anne C Staff
- Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway (Drs Fosheim, Jacobsen, Sugulle, Alnaes-Katjavivi, Fjeldstad, Ueland, and Staff); Division of Obstetrics and Gynaecology, Oslo University Hospital, Oslo, Norway (Drs Fosheim, Jacobsen, Sugulle, Alnaes-Katjavivi, Fjeldstad, and Staff)
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12
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Deep blue autofluorescence reflects the oxidation state of human transthyretin. Redox Biol 2022; 56:102434. [PMID: 35987087 PMCID: PMC9411673 DOI: 10.1016/j.redox.2022.102434] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Revised: 07/28/2022] [Accepted: 08/04/2022] [Indexed: 11/25/2022] Open
Abstract
Human transthyretin (TTR) is a tetrameric protein transporting thyroid hormones and retinol. TTR is a neuroprotective factor and sensor of oxidative stress which stability is diminished due to mutations and aging, leading to amyloid deposition. Adverse environmental conditions, such as redox and metal ion imbalances, induce destabilization of the TTR structure. We have previously shown that the stability of TTR was disturbed by Ca2+ and other factors, including DTT, and led to the formation of an intrinsic fluorophore(s) emitting blue light, termed deep blue autofluorescence (dbAF). Here, we show that the redox state of TTR affects the formation dynamics and properties of dbAF. Free thiols lead to highly unstable subpopulations of TTR and the frequent ocurrence of dbAF. Oxidative conditions counteracted the destabilizing effects of free thiols to some extent. However, strong oxidative conditions led to modifications of TTR, which altered the stability of TTR and resulted in unique dbAF spectra. Riboflavin and/or riboflavin photoproducts bound to TTR and crosslinked TTR subunits. Riboflavin-sensitized photooxidation increased TTR unfolding, while photooxidation, either in the absence or presence of riboflavin, increased proteolysis and resulted in multiple oxidative modifications and dityrosine formation in TTR molecules. Therefore, oxidation can switch the role of TTR from a protective to pathogenic factor.
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13
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Cheng S, Huang Z, Banerjee S, Jash S, Buxbaum JN, Sharma S. Evidence From Human Placenta, Endoplasmic Reticulum-Stressed Trophoblasts, and Transgenic Mice Links Transthyretin Proteinopathy to Preeclampsia. Hypertension 2022; 79:1738-1754. [PMID: 35607996 PMCID: PMC9308752 DOI: 10.1161/hypertensionaha.121.18916] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
BACKGROUND We have demonstrated that protein aggregation plays a pivotal role in the pathophysiology of preeclampsia and identified several aggregated proteins in the circulation of preeclampsia patients, the most prominent of which is the serum protein TTR (transthyretin). However, the mechanisms that underlie protein aggregation remain poorly addressed. METHODS We examined TTR aggregates in hypoxia/reoxygenation-exposed primary human trophoblasts (PHTs) and the preeclampsia placenta using complementary approaches, including a novel protein aggregate detection assay. Mechanistic analysis was performed in hypoxia/reoxygenation-exposed PHTs and Ttr transgenic mice overexpressing transgene-encoded wild-type human TTR or Ttr-/- mice. High-resolution ultrasound analysis was used to measure placental blood flow in pregnant mice. RESULTS TTR aggregation was inducible in PHTs and the TCL-1 trophoblast cell line by endoplasmic reticulum stress inducers or autophagy-lysosomal disruptors. PHTs exposed to hypoxia/reoxygenation showed increased intracellular BiP (binding immunoglobulin protein), phosphorylated IRE1α (inositol-requiring enzyme-1α), PDI (protein disulfide isomerase), and Ero-1, all markers of the unfolded protein response, and the apoptosis mediator caspase-3. Blockade of IRE1α inhibited hypoxia/reoxygenation-induced upregulation of Ero-1 in PHTs. Excessive unfolded protein response activation was observed in the early-onset preeclampsia placenta. Importantly, pregnant human TTR mice displayed aggregated TTR in the junctional zone of the placenta and severe preeclampsia-like features. High-resolution ultrasound analysis revealed low blood flow in uterine and umbilical arteries in human TTR mice compared with control mice. However, Ttr-/- mice did not show any pregnancy-associated abnormalities. CONCLUSIONS These observations in the preeclampsia placenta, cultured trophoblasts, and Ttr transgenic mice indicate that TTR aggregation is an important causal contributor to preeclampsia pathophysiology.
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Affiliation(s)
- Shibin Cheng
- Department of Pediatrics, Women & Infants Hospital, Warren Alpert Medical School of Brown University, Providence, RI (S.C., Z.H., S.B., S.J., S.S.)
| | - Zheping Huang
- Department of Pediatrics, Women & Infants Hospital, Warren Alpert Medical School of Brown University, Providence, RI (S.C., Z.H., S.B., S.J., S.S.)
| | - Sayani Banerjee
- Department of Pediatrics, Women & Infants Hospital, Warren Alpert Medical School of Brown University, Providence, RI (S.C., Z.H., S.B., S.J., S.S.)
| | - Sukanta Jash
- Department of Pediatrics, Women & Infants Hospital, Warren Alpert Medical School of Brown University, Providence, RI (S.C., Z.H., S.B., S.J., S.S.)
| | - Joel N Buxbaum
- Department of Molecular Medicine, Scripps Research Institute, La Jolla, CA (J.N.B.).,Protego Biopharma, Inc, San Diego, CA (J.N.B.)
| | - Surendra Sharma
- Department of Pediatrics, Women & Infants Hospital, Warren Alpert Medical School of Brown University, Providence, RI (S.C., Z.H., S.B., S.J., S.S.)
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14
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Banerjee S, Huang Z, Wang Z, Nakashima A, Saito S, Sharma S, Cheng S. Etiological Value of Sterile Inflammation in Preeclampsia: Is It a Non-Infectious Pregnancy Complication? Front Cell Infect Microbiol 2021; 11:694298. [PMID: 34485175 PMCID: PMC8415471 DOI: 10.3389/fcimb.2021.694298] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Accepted: 07/30/2021] [Indexed: 12/25/2022] Open
Abstract
Understanding of sterile inflammation and its associated biological triggers and diseases is still at the elementary stage. This becomes more warranted in cases where infections are not associated with the pathology. Detrimental effects of bacterial and viral infections on the immune responses at the maternal-fetal interface as well as pregnancy outcomes have been well documented. However, an infection-induced etiology is not thought to be a major contributing component to severe pregnancy complications such as preeclampsia (PE) and gestational diabetes. How is then an inflammatory signal thought to be associated with these pregnancy complications? It is not clear what type of inflammation is involved in the onset of PE-like features. We opine that sterile inflammation regulated by the inflammasome-gasdermins-caspase-1 axis is a contributory factor to the onset of PE. We hypothesize that increased production and release of damage-associated molecular patterns (DAMPs) or Alarmins such as high-mobility group box1 (HMGB1), cell-free fetal DNA, uric acid, the NOD-like receptor pyrin-containing receptor 3 (NLRP3) inflammasome, IL-1β and IL-18 occur in the PE placenta. Some of these molecules have already been observed in the placenta from women with PE. Mechanistically, emerging evidence has demonstrated that excessive placental endoplasmic reticulum (ER) stress, impaired autophagy and gasdermine D (GSDMD)-mediated intrinsic pyroptosis are key events that contribute to systemic sterile inflammation in patients with PE, especially early-onset PE (e-PE). In this review, we highlight the advances on the roles of sterile inflammation and inflammatory signaling cascades involving ER stress, autophagy deficiency and pyroptosis in PE pathophysiology. Deciphering the mechanisms underlying these inflammatory pathways may provide potential diagnostic biomarkers and facilitate the development of therapeutic strategies to treat this devastating disease.
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Affiliation(s)
- Sayani Banerjee
- Department of Pediatrics, Women and Infants Hospital-Warren Alpert Medical School of Brown University, Providence, RI, United States
| | - Zheping Huang
- Department of Pediatrics, Women and Infants Hospital-Warren Alpert Medical School of Brown University, Providence, RI, United States
| | - Zhengke Wang
- Department of Pediatrics, Women and Infants Hospital-Warren Alpert Medical School of Brown University, Providence, RI, United States
| | - Akitoshi Nakashima
- Department of Obstetrics and Gynecology, University of Toyama, Toyama, Japan
| | - Shigeru Saito
- Department of Obstetrics and Gynecology, University of Toyama, Toyama, Japan
| | - Surendra Sharma
- Department of Pediatrics, Women and Infants Hospital-Warren Alpert Medical School of Brown University, Providence, RI, United States
| | - Shibin Cheng
- Department of Pediatrics, Women and Infants Hospital-Warren Alpert Medical School of Brown University, Providence, RI, United States
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15
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Cheng S, Banerjee S, Daiello LA, Nakashima A, Jash S, Huang Z, Drake JD, Ernerudh J, Berg G, Padbury J, Saito S, Ott BR, Sharma S. Novel blood test for early biomarkers of preeclampsia and Alzheimer's disease. Sci Rep 2021; 11:15934. [PMID: 34354200 PMCID: PMC8342418 DOI: 10.1038/s41598-021-95611-5] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Accepted: 07/19/2021] [Indexed: 12/24/2022] Open
Abstract
A non-invasive and sensitive blood test has long been a goal for early stage disease diagnosis and treatment for Alzheimer's disease (AD) and other proteinopathy diseases. We previously reported that preeclampsia (PE), a severe pregnancy complication, is another proteinopathy disorder with impaired autophagy. We hypothesized that induced autophagy deficiency would promote accumulation of pathologic protein aggregates. Here, we describe a novel, sensitive assay that detects serum protein aggregates from patients with PE (n = 33 early onset and 33 late onset) and gestational age-matched controls (n = 77) as well as AD in both dementia and prodromal mild cognitive impairment (MCI, n = 24) stages with age-matched controls (n = 19). The assay employs exposure of genetically engineered, autophagy-deficient human trophoblasts (ADTs) to serum from patients. The aggregated protein complexes and their individual components, including transthyretin, amyloid β-42, α-synuclein, and phosphorylated tau231, can be detected and quantified by co-staining with ProteoStat, a rotor dye with affinity to aggregated proteins, and respective antibodies. Detection of protein aggregates in ADTs was not dependent on transcriptional upregulation of these biomarkers. The ROC curve analysis validated the robustness of the assay for its specificity and sensitivity (PE; AUC: 1, CI: 0.949-1.00; AD; AUC: 0.986, CI: 0.832-1.00). In conclusion, we have developed a novel, noninvasive diagnostic and predictive assay for AD, MCI and PE.
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Affiliation(s)
- Shibin Cheng
- grid.40263.330000 0004 1936 9094Department of Pediatrics, Women and Infants Hospital-Warren Alpert Medical School of Brown University, 101 Dudley Street, Providence, RI 02905 USA
| | - Sayani Banerjee
- grid.40263.330000 0004 1936 9094Department of Pediatrics, Women and Infants Hospital-Warren Alpert Medical School of Brown University, 101 Dudley Street, Providence, RI 02905 USA
| | - Lori A. Daiello
- grid.40263.330000 0004 1936 9094Department of Neurology, Warren Alpert Medical School of Brown University and Alzheimer’s Disease and Memory Disorders Center At Rhode Island Hospital, Providence, RI 02903 USA
| | - Akitoshi Nakashima
- grid.267346.20000 0001 2171 836XDepartment of Obstetrics and Gynecology, University of Toyama, Toyama, Japan
| | - Sukanta Jash
- grid.40263.330000 0004 1936 9094Department of Pediatrics, Women and Infants Hospital-Warren Alpert Medical School of Brown University, 101 Dudley Street, Providence, RI 02905 USA
| | - Zheping Huang
- grid.40263.330000 0004 1936 9094Department of Pediatrics, Women and Infants Hospital-Warren Alpert Medical School of Brown University, 101 Dudley Street, Providence, RI 02905 USA
| | - Jonathan D. Drake
- grid.40263.330000 0004 1936 9094Department of Neurology, Warren Alpert Medical School of Brown University and Alzheimer’s Disease and Memory Disorders Center At Rhode Island Hospital, Providence, RI 02903 USA
| | - Jan Ernerudh
- grid.5640.70000 0001 2162 9922Department of Biomedical and Clinical Services, Linkoping University, Linkoping, Sweden
| | - Goran Berg
- grid.5640.70000 0001 2162 9922Department of Biomedical and Clinical Services, Linkoping University, Linkoping, Sweden
| | - James Padbury
- grid.40263.330000 0004 1936 9094Department of Pediatrics, Women and Infants Hospital-Warren Alpert Medical School of Brown University, 101 Dudley Street, Providence, RI 02905 USA
| | - Shigeru Saito
- grid.267346.20000 0001 2171 836XDepartment of Obstetrics and Gynecology, University of Toyama, Toyama, Japan
| | - Brian R. Ott
- grid.40263.330000 0004 1936 9094Department of Neurology, Warren Alpert Medical School of Brown University and Alzheimer’s Disease and Memory Disorders Center At Rhode Island Hospital, Providence, RI 02903 USA
| | - Surendra Sharma
- grid.40263.330000 0004 1936 9094Department of Pediatrics, Women and Infants Hospital-Warren Alpert Medical School of Brown University, 101 Dudley Street, Providence, RI 02905 USA
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16
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Wieczorek E, Ożyhar A. Transthyretin: From Structural Stability to Osteoarticular and Cardiovascular Diseases. Cells 2021; 10:1768. [PMID: 34359938 PMCID: PMC8307983 DOI: 10.3390/cells10071768] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Revised: 06/29/2021] [Accepted: 07/09/2021] [Indexed: 01/10/2023] Open
Abstract
Transthyretin (TTR) is a tetrameric protein transporting hormones in the plasma and brain, which has many other activities that have not been fully acknowledged. TTR is a positive indicator of nutrition status and is negatively correlated with inflammation. TTR is a neuroprotective and oxidative-stress-suppressing factor. The TTR structure is destabilized by mutations, oxidative modifications, aging, proteolysis, and metal cations, including Ca2+. Destabilized TTR molecules form amyloid deposits, resulting in senile and familial amyloidopathies. This review links structural stability of TTR with the environmental factors, particularly oxidative stress and Ca2+, and the processes involved in the pathogenesis of TTR-related diseases. The roles of TTR in biomineralization, calcification, and osteoarticular and cardiovascular diseases are broadly discussed. The association of TTR-related diseases and vascular and ligament tissue calcification with TTR levels and TTR structure is presented. It is indicated that unaggregated TTR and TTR amyloid are bound by vicious cycles, and that TTR may have an as yet undetermined role(s) at the crossroads of calcification, blood coagulation, and immune response.
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Affiliation(s)
- Elżbieta Wieczorek
- Department of Biochemistry, Molecular Biology and Biotechnology, Faculty of Chemistry, Wroclaw University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wroclaw, Poland;
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17
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Aggrephagy Deficiency in the Placenta: A New Pathogenesis of Preeclampsia. Int J Mol Sci 2021; 22:ijms22052432. [PMID: 33670947 PMCID: PMC7957664 DOI: 10.3390/ijms22052432] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Revised: 02/24/2021] [Accepted: 02/24/2021] [Indexed: 02/06/2023] Open
Abstract
Aggrephagy is defined as the selective degradation of aggregated proteins by autophagosomes. Protein aggregation in organs and cells has been highlighted as a cause of multiple diseases, including neurodegenerative diseases, cardiac failure, and renal failure. Aggregates could pose a hazard for cell survival. Cells exhibit three main mechanisms against the accumulation of aggregates: protein refolding by upregulation of chaperones, reduction of protein overload by translational inhibition, and protein degradation by the ubiquitin-proteasome and autophagy-lysosome systems. Deletion of autophagy-related genes reportedly contributes to intracellular protein aggregation in vivo. Some proteins recognized in aggregates in preeclamptic placentas include those involved in neurodegenerative diseases. As aggregates are derived both intracellularly and extracellularly, special endocytosis for extracellular aggregates also employs the autophagy machinery. In this review, we discuss how the deficiency of aggrephagy and/or macroautophagy leads to poor placentation, resulting in preeclampsia or fetal growth restriction.
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18
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Li S, Hu YW. Pathogenesis of uteroplacental acute atherosis: An update on current research. Am J Reprod Immunol 2021; 85:e13397. [PMID: 33533529 DOI: 10.1111/aji.13397] [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: 09/05/2020] [Accepted: 01/27/2021] [Indexed: 11/30/2022] Open
Abstract
Uteroplacental acute atherosis is a type of arterial vascular disease that affects the placenta during pregnancy and predominates in the maternal spiral arteries in the decidua basalis layer of the pregnant uterus. This condition is characterized by fibrin-like necrosis of the blood vessel walls, the accumulation of macrophages containing fat (foam cells), and the infiltration of macrophages around blood vessels. Uteroplacental acute atherosis is rare in normal pregnancy but occurs more frequently in patients with pregnancy complications, including preeclampsia, spontaneous preterm labor, preterm prelabor rupture of membranes, mid-trimester spontaneous abortion, fetal death, and small-for-gestational age. It is believed that the mechanisms underlying the development of uteroplacental acute atherosis are related to the incomplete physiological transformation of spiral arteries, placental inflammation, abnormal lipid metabolism, and oxidative stress. In this review, we describe the pathogenesis of uteroplacental acute atherosis to provide reference guidelines for the future prevention and treatment of uteroplacental acute atherosclerotic disease.
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Affiliation(s)
- Shu Li
- Department of Clinical Laboratory, Guangzhou Women & Children Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Yan-Wei Hu
- Department of Clinical Laboratory, Guangzhou Women & Children Medical Center, Guangzhou Medical University, Guangzhou, China
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19
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Navajas R, Corrales F, Paradela A. Quantitative proteomics-based analyses performed on pre-eclampsia samples in the 2004-2020 period: a systematic review. Clin Proteomics 2021; 18:6. [PMID: 33499801 PMCID: PMC7836571 DOI: 10.1186/s12014-021-09313-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Accepted: 01/15/2021] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Quantitative proteomics is an invaluable tool in biomedicine for the massive comparative analysis of protein component of complex biological samples. In the last two decades, this technique has been used to describe proteins potentially involved in the pathophysiological mechanisms of preeclampsia as well as to identify protein biomarkers that could be used with diagnostic/prognostic purposes in pre-eclampsia. RESULTS We have done a systematic review of all proteomics-based papers describing differentially expressed proteins in this disease. Searching Pubmed with the terms pre-eclampsia and proteomics, restricted to the Title/Abstract and to MeSH fields, and following manual curation of the original list, retrieved 69 original articles corresponding to the 2004-2020 period. We have only considered those results based on quantitative, unbiased proteomics studies conducted in a controlled manner on a cohort of control and pre-eclamptic individuals. The sources of biological material used were serum/plasma (n = 32), placenta (n = 23), urine (n = 9), cerebrospinal fluid (n = 2), amniotic fluid (n = 2) and decidual tissue (n = 1). Overall results were filtered based on two complementary criteria. First, we have only accounted all those proteins described in at least two (urine), three (placenta) and four (serum/plasma) independent studies. Secondly, we considered the consistency of the quantitative data, that is, inter-study agreement in the protein abundance control/pre-eclamptic ratio. The total number of differential proteins in serum/plasma (n = 559), placenta (n = 912), urine (n = 132) and other sources of biological material (n = 26), reached 1631 proteins. Data were highly complementary among studies, resulting from differences on biological sources, sampling strategies, patient stratification, quantitative proteomic analysis methods and statistical data analysis. Therefore, stringent filtering was applied to end up with a cluster of 18, 29 and 16 proteins consistently regulated in pre-eclampsia in placenta, serum/plasma and urine, respectively. The systematic collection, standardization and evaluation of the results, using diverse filtering criteria, provided a panel of 63 proteins whose levels are consistently modified in the context of pre-eclampsia.
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Affiliation(s)
- Rosana Navajas
- Functional Proteomics Facility, Centro Nacional de Biotecnología (CNB-CSIC), ProteoRed-ISCIII, Madrid, Spain
| | - Fernando Corrales
- Functional Proteomics Facility, Centro Nacional de Biotecnología (CNB-CSIC), ProteoRed-ISCIII, Madrid, Spain
| | - Alberto Paradela
- Functional Proteomics Facility, Centro Nacional de Biotecnología (CNB-CSIC), ProteoRed-ISCIII, Madrid, Spain.
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20
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Nakashima A, Shima T, Aoki A, Kawaguchi M, Yasuda I, Tsuda S, Yoneda S, Yamaki-Ushijima A, Cheng S, Sharma S, Saito S. Placental autophagy failure: A risk factor for preeclampsia. J Obstet Gynaecol Res 2020; 46:2497-2504. [PMID: 32939889 DOI: 10.1111/jog.14489] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Accepted: 09/02/2020] [Indexed: 12/21/2022]
Abstract
Hypertensive disorders of pregnancy, including preeclampsia, directly affect maternal and perinatal morbidity and mortality. As the pathophysiology of preeclampsia is multi-factorial and has been studied using different approaches, we have demonstrated that impaired autophagy is an intertwined risk factor for preeclampsia. This concept has been verified in both in vitro and in vivo experiments. Autophagy is primarily involved in maintaining cellular homeostasis, and in immune regulation, longevity, cytokines secretion and a variety of other biological functions. Here, we review the role of autophagy in normal embryogenesis and placentation. Once placental autophagy is impaired by metabolic stress such as hypoxia, endoplasmic reticulum stress or starvation, placental development could be disrupted, resulting in functional maladaptations at the maternal-fetal interface. These malfunctions may result in fetal growth restriction or preeclampsia.
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Affiliation(s)
- Akitoshi Nakashima
- Department of Obstetrics and Gynecology, Faculty of Medicine, University of Toyama, Toyama, Japan
| | - Tomoko Shima
- Department of Obstetrics and Gynecology, Faculty of Medicine, University of Toyama, Toyama, Japan
| | - Aiko Aoki
- Department of Obstetrics and Gynecology, Faculty of Medicine, University of Toyama, Toyama, Japan
| | - Mihoko Kawaguchi
- Department of Obstetrics and Gynecology, Faculty of Medicine, University of Toyama, Toyama, Japan
| | - Ippei Yasuda
- Department of Obstetrics and Gynecology, Faculty of Medicine, University of Toyama, Toyama, Japan
| | - Sayaka Tsuda
- Department of Obstetrics and Gynecology, Faculty of Medicine, University of Toyama, Toyama, Japan
| | - Satoshi Yoneda
- Department of Obstetrics and Gynecology, Faculty of Medicine, University of Toyama, Toyama, Japan
| | - Akemi Yamaki-Ushijima
- Department of Obstetrics and Gynecology, Faculty of Medicine, University of Toyama, Toyama, Japan
| | - Shibin Cheng
- Department of Pediatrics, Women and Infants Hospital, Brown University, Providence, Rhode Island, USA
| | - Surendra Sharma
- Department of Pediatrics, Women and Infants Hospital, Brown University, Providence, Rhode Island, USA
| | - Shigeru Saito
- Department of Obstetrics and Gynecology, Faculty of Medicine, University of Toyama, Toyama, Japan
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21
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Destabilisation of the structure of transthyretin is driven by Ca 2. Int J Biol Macromol 2020; 166:409-423. [PMID: 33129902 DOI: 10.1016/j.ijbiomac.2020.10.199] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Revised: 10/08/2020] [Accepted: 10/24/2020] [Indexed: 12/19/2022]
Abstract
Tetrameric transthyretin (TTR) transports thyroid hormones and retinol in plasma and cerebrospinal fluid and performs protective functions under stress conditions. Ageing and mutations result in TTR destabilisation and the formation of the amyloid deposits that dysregulate Ca2+ homeostasis. Our aim was to determine whether Ca2+ affects the structural stability of TTR. We show, using multiple techniques, that Ca2+ does not induce prevalent TTR dissociation and/or oligomerisation. However, in the presence of Ca2+, TTR exhibits altered conformational flexibility and different interactions with the solvent molecules. These structural changes lead to the formation of the sub-populations of non-native TTR conformers and to the destabilisation of the structure of TTR. Moreover, the sub-population of TTR molecules undergoes fragmentation that is augmented by Ca2+. We postulate that Ca2+ constitutes the structural and functional switch between the native and non-native forms of TTR, and therefore tip the balance towards age-dependent pathological calcification.
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22
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Nakashima A, Cheng SB, Ikawa M, Yoshimori T, Huber WJ, Menon R, Huang Z, Fierce J, Padbury JF, Sadovsky Y, Saito S, Sharma S. Evidence for lysosomal biogenesis proteome defect and impaired autophagy in preeclampsia. Autophagy 2020; 16:1771-1785. [PMID: 31856641 PMCID: PMC8386603 DOI: 10.1080/15548627.2019.1707494] [Citation(s) in RCA: 67] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2019] [Revised: 11/26/2019] [Accepted: 12/13/2019] [Indexed: 01/06/2023] Open
Abstract
The etiology of preeclampsia (PE), a serious pregnancy complication, remains an enigma. We have demonstrated that proteinopathy, a pathologic feature of neurodegenerative diseases, is a key observation in the placenta and serum from PE patients. We hypothesize that the macroautophagy/autophagy machinery that mediates degradation of aggregated proteins and damaged organelles is impaired in PE. Here, we show that TFEB (transcription factor EB), a master transcriptional regulator of lysosomal biogenesis, and its regulated proteins, LAMP1, LAMP2, and CTSD (cathepsin D), were dysregulated in the placenta from early and late onset PE deliveries. Primary human trophoblasts and immortalized extravillous trophoblasts (EVTs) showed reduced TFEB expression and nuclear translocation as well as lysosomal protein content in response to hypoxia. Hypoxia-exposed trophoblasts also showed decreased PPP3/calcineurin phosphatase activity and increased XPO1/CRM1 (exportin 1), events that inhibit TFEB nuclear translocation. These proteins were also dysregulated in the PE placenta. These results are supported by observed lysosomal ultrastructural defects with decreased number of autolysosomes in hypoxia-treated primary human trophoblasts. Autophagy-deficient human EVTs exhibited poor TFEB nuclear translocation, reduced lysosomal protein expression and function, and increased MTORC1 activity. Sera from PE patients induced these features and protein aggregation in EVTs. Importantly, trophoblast-specific conditional atg7 knockout mice exhibited reduced TFEB expression with increased deposition of protein aggregates in the placenta. These results provide compelling evidence for a regulatory link between accumulation of protein aggregates and TFEB-mediated impaired lysosomal biogenesis and autophagy in the placenta of PE patients. Abbreviation:atg7: autophagy related 7; CTSD: cathepsin D; ER: endoplasmic reticulum; EVTs: extravillous trophoblasts; KRT7: keratin 7; LAMP1: lysosomal associated membrane protein 1; LAMP2: lysosomal associated membrane protein 2; mSt: mStrawberry; MTORC1: mechanistic target of rapamycin complex 1; NP: normal pregnancy; NPS: normal pregnancy serum; PE: preeclampsia; PES: preeclampsia serum; p-RPS6KB: phosphorylated ribosomal protein S6 kinase B1; SQSTM1/p62: sequestosome 1; TEM: transmission electron microscopy; TFEB: transcription factor EB; XPO1/CRM1: exportin 1.
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Affiliation(s)
- Akitoshi Nakashima
- Departments of Pediatrics, Obstetrics and Gynecology and Pathology, Women and Infants Hospital of Rhode Island, Warren Alpert Medical School of Brown University, Providence, RI, USA
| | - Shi-Bin Cheng
- Departments of Pediatrics, Obstetrics and Gynecology and Pathology, Women and Infants Hospital of Rhode Island, Warren Alpert Medical School of Brown University, Providence, RI, USA
| | - Masahito Ikawa
- Research Institute for Microbial Diseases, Osaka University, Osaka, Japan
| | - Tamotsu Yoshimori
- Department of Genetics, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Warren J. Huber
- Departments of Pediatrics, Obstetrics and Gynecology and Pathology, Women and Infants Hospital of Rhode Island, Warren Alpert Medical School of Brown University, Providence, RI, USA
| | - Ramkumar Menon
- Deaprtment of Obstetrics and Gynecology, University of Texas Medical Branch, Galveston, TX, USA
| | - Zheping Huang
- Departments of Pediatrics, Obstetrics and Gynecology and Pathology, Women and Infants Hospital of Rhode Island, Warren Alpert Medical School of Brown University, Providence, RI, USA
| | - Jamie Fierce
- Departments of Pediatrics, Obstetrics and Gynecology and Pathology, Women and Infants Hospital of Rhode Island, Warren Alpert Medical School of Brown University, Providence, RI, USA
| | - James F. Padbury
- Departments of Pediatrics, Obstetrics and Gynecology and Pathology, Women and Infants Hospital of Rhode Island, Warren Alpert Medical School of Brown University, Providence, RI, USA
| | - Yoel Sadovsky
- Magee-Womens Research Institute, Department of Obstetrics and Gynecology, University of Pittsburgh, PA, USA
| | - Shigeru Saito
- Department of Obstetrics and Gynecology, Faculty of Medicine, University of Toyama, Toyama, Japan
| | - Surendra Sharma
- Departments of Pediatrics, Obstetrics and Gynecology and Pathology, Women and Infants Hospital of Rhode Island, Warren Alpert Medical School of Brown University, Providence, RI, USA
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23
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Schuster J, Cheng SB, Padbury J, Sharma S. Placental extracellular vesicles and pre-eclampsia. Am J Reprod Immunol 2020; 85:e13297. [PMID: 32619308 DOI: 10.1111/aji.13297] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Revised: 06/16/2020] [Accepted: 06/26/2020] [Indexed: 12/16/2022] Open
Abstract
Pre-eclampsia is a hypertensive disease of pregnancy characterized by new-onset hypertension, with either proteinuria and/or organ dysfunction. Pre-eclampsia is a leading cause of maternal morbidity and mortality; however, the underlying cellular and molecular mechanisms are not well understood. There is consensus that the underlying mechanism(s) resulting in pre-eclampsia is centered around abnormal placentation, inadequate spiral-artery remodeling, and deficiency in trophoblast invasion, resulting in impaired maternal blood flow to the placenta and a release of signals and/or inflammatory mediators into maternal circulation triggering the systemic manifestations of pre-eclampsia. ER stress, resulting in impaired autophagy and placental release of aggregated proteins, may also confer systemic stress to maternal organs in pre-eclampsia. Extracellular vesicles (EVs), lipid-bilayer enclosed structures containing macromolecules including proteins, miRNA, and other important nucleotides, have been suggested to play an important role in this maternal-fetal communication. Circulating EVs are present in greater quantity in the plasma of pre-eclampsia subjects compared to normal pregnancy, and the placental derived EVs have been shown to have altered protein and RNA cargo. In this review, we will focus on EVs and their role in pre-eclampsia, specifically their role in immune responses, inflammation, altered angiogenesis, and endothelial dysfunction.
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Affiliation(s)
- Jessica Schuster
- Department of Pediatrics, Women and Infants Hospital of Rhode Island, Providence, RI, USA
| | - Shi-Bin Cheng
- Department of Pediatrics, Women and Infants Hospital of Rhode Island, Providence, RI, USA
| | - James Padbury
- Department of Pediatrics, Women and Infants Hospital of Rhode Island, Providence, RI, USA
| | - Surendra Sharma
- Department of Pediatrics, Women and Infants Hospital of Rhode Island, Providence, RI, USA
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24
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Ma XP, Liu CD, Cao GM, Zhang ZY. Transthyretin increases migration and invasion of rat placental trophoblast cells. FEBS Open Bio 2020; 10:1568-1576. [PMID: 32533762 PMCID: PMC7396443 DOI: 10.1002/2211-5463.12911] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Revised: 05/09/2020] [Accepted: 06/08/2020] [Indexed: 11/07/2022] Open
Abstract
Preeclampsia (PE) is a hypertensive disorder of pregnancy. Early diagnosis of PE is currently contingent on regular prenatal physical examinations and may be facilitated by identification of novel diagnostic markers. Transthyretin (TTR), also known as prealbumin, is primarily responsible for maintaining the normal levels of thyroxine and retinol binding protein. The expression of TTR is lower in patients with severe PE as compared with healthy controls. Here, we examined the suitability of TTR as a diagnostic marker in pregnant hypertensive rats. N'-nitro-l-arginine-methylesterhydrochloride (l-NAME) was used to generate a rat model of hypertension during pregnancy. Rat placental trophoblast cells were divided into control and TTR groups for in vitro experiments. Systolic blood pressure, diastolic blood pressure, mean blood pressure and urinary protein of hypertensive pregnant rats were higher than those of healthy pregnant rats, but these effects could be reversed by TTR treatment. There were no significant changes in blood pressure and urinary protein in healthy pregnant rats before or after TTR treatment. TTR levels in the serum and placental tissues of pregnant hypertensive rats were significantly reduced compared with those of healthy pregnant rats. Changes in placental and fetal weights in the hypertensive model could also be rescued by TTR treatment. TTR treatment significantly increased the level of matrix metalloproteinase-2/9 in hypertensive rats. Finally, in vivo and in vitro experiments demonstrated that TTR effectively increased the migration and invasion of rat placental trophoblast cells, as well as matrix metalloproteinase-2/9 levels in these cells. In conclusion, our data from a rat model suggest that TTR may have potential as a novel marker for PE diagnosis.
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Affiliation(s)
- Xiao-Peng Ma
- Beijing Chaoyang Hospital Affiliated to Capital Medical University, Beijing, China.,Beijing Youan Hospital Affiliated to Capital Medical University, Beijing, China
| | - Chong-Dong Liu
- Beijing Chaoyang Hospital Affiliated to Capital Medical University, Beijing, China
| | - Guang-Ming Cao
- Beijing Chaoyang Hospital Affiliated to Capital Medical University, Beijing, China
| | - Zhen-Yu Zhang
- Beijing Chaoyang Hospital Affiliated to Capital Medical University, Beijing, China
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25
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Nakashima A, Shima T, Tsuda S, Aoki A, Kawaguchi M, Yoneda S, Yamaki-Ushijima A, Cheng SB, Sharma S, Saito S. Disruption of Placental Homeostasis Leads to Preeclampsia. Int J Mol Sci 2020; 21:ijms21093298. [PMID: 32392703 PMCID: PMC7246800 DOI: 10.3390/ijms21093298] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2020] [Revised: 04/29/2020] [Accepted: 05/04/2020] [Indexed: 12/12/2022] Open
Abstract
Placental homeostasis is directly linked to fetal well-being and normal fetal growth. Placentas are sensitive to various environmental stressors, including hypoxia, endoplasmic reticulum stress, and oxidative stress. Once placental homeostasis is disrupted, the placenta may rebel against the mother and fetus. Autophagy is an evolutionally conservative mechanism for the maintenance of cellular and organic homeostasis. Evidence suggests that autophagy plays a crucial role throughout pregnancy, including fertilization, placentation, and delivery in human and mouse models. This study reviews the available literature discussing the role of autophagy in preeclampsia.
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Affiliation(s)
- Akitoshi Nakashima
- Department of Obstetrics and Gynecology, University of Toyama, Toyama 930-8555, Japan; (T.S.); (S.T.); (A.A.); (M.K.); (S.Y.); (A.Y.-U.); (S.S.)
- Correspondence: ; Tel.: +81-76-434-7355
| | - Tomoko Shima
- Department of Obstetrics and Gynecology, University of Toyama, Toyama 930-8555, Japan; (T.S.); (S.T.); (A.A.); (M.K.); (S.Y.); (A.Y.-U.); (S.S.)
| | - Sayaka Tsuda
- Department of Obstetrics and Gynecology, University of Toyama, Toyama 930-8555, Japan; (T.S.); (S.T.); (A.A.); (M.K.); (S.Y.); (A.Y.-U.); (S.S.)
| | - Aiko Aoki
- Department of Obstetrics and Gynecology, University of Toyama, Toyama 930-8555, Japan; (T.S.); (S.T.); (A.A.); (M.K.); (S.Y.); (A.Y.-U.); (S.S.)
| | - Mihoko Kawaguchi
- Department of Obstetrics and Gynecology, University of Toyama, Toyama 930-8555, Japan; (T.S.); (S.T.); (A.A.); (M.K.); (S.Y.); (A.Y.-U.); (S.S.)
| | - Satoshi Yoneda
- Department of Obstetrics and Gynecology, University of Toyama, Toyama 930-8555, Japan; (T.S.); (S.T.); (A.A.); (M.K.); (S.Y.); (A.Y.-U.); (S.S.)
| | - Akemi Yamaki-Ushijima
- Department of Obstetrics and Gynecology, University of Toyama, Toyama 930-8555, Japan; (T.S.); (S.T.); (A.A.); (M.K.); (S.Y.); (A.Y.-U.); (S.S.)
| | - Shi-Bin Cheng
- Department of Pediatrics, Women and Infants Hospital of Rhode Island, Warren Alpert Medical School of Brown University, Providence, RI 02903, USA; (S.-B.C.); (S.S.)
| | - Surendra Sharma
- Department of Pediatrics, Women and Infants Hospital of Rhode Island, Warren Alpert Medical School of Brown University, Providence, RI 02903, USA; (S.-B.C.); (S.S.)
| | - Shigeru Saito
- Department of Obstetrics and Gynecology, University of Toyama, Toyama 930-8555, Japan; (T.S.); (S.T.); (A.A.); (M.K.); (S.Y.); (A.Y.-U.); (S.S.)
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Gerasimova EM, Fedotov SA, Kachkin DV, Vashukova ES, Glotov AS, Chernoff YO, Rubel AA. Protein Misfolding during Pregnancy: New Approaches to Preeclampsia Diagnostics. Int J Mol Sci 2019; 20:E6183. [PMID: 31817906 PMCID: PMC6941028 DOI: 10.3390/ijms20246183] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Revised: 12/02/2019] [Accepted: 12/04/2019] [Indexed: 12/22/2022] Open
Abstract
Preeclampsia (PE) is a multisystem heterogeneous complication of pregnancy remaining a leading cause of maternal and perinatal morbidity and mortality over the world. PE has a large spectrum of clinical features and symptoms, which make diagnosis challenging. Despite a long period of studying, PE etiology is still unclear and there are no reliable rapid tests for early diagnosis of this disease. During the last decade, it was shown that proteins misfolding and aggregation are associated with PE. Several proteins, including amyloid beta peptide, transthyretin, alpha-1 antitrypsin, albumin, IgG k-free light chains, and ceruloplasmin are dysregulated in PE, resulting in toxic deposition of amyloid-like aggregates in the placenta and body fluids. It is also possible that aggregated proteins induce defective trophoblast invasion, placental ischemia, ER stress, and promote PE manifestation. The fact that protein aggregation is an emerging biomarker of PE provides an opportunity to develop new diagnostic approaches based on amyloids special features, such as Congo red (CR) staining and thioflavin T (ThT) enhanced fluorescence.
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Affiliation(s)
- Elizaveta M. Gerasimova
- Laboratory of Amyloid Biology, St. Petersburg State University, 199034 St. Petersburg, Russia; (E.M.G.); (S.A.F.); (Y.O.C.)
- Department of Genetics and Biotechnology, St. Petersburg State University, 199034 St. Petersburg, Russia
| | - Sergey A. Fedotov
- Laboratory of Amyloid Biology, St. Petersburg State University, 199034 St. Petersburg, Russia; (E.M.G.); (S.A.F.); (Y.O.C.)
- Pavlov Institute of Physiology, Russian Academy of Sciences, 199034 St. Petersburg, Russia
| | - Daniel V. Kachkin
- Laboratory of Amyloid Biology, St. Petersburg State University, 199034 St. Petersburg, Russia; (E.M.G.); (S.A.F.); (Y.O.C.)
- Department of Genetics and Biotechnology, St. Petersburg State University, 199034 St. Petersburg, Russia
| | - Elena S. Vashukova
- Department of Genomic Medicine, D.O. Ott Research Institute of Obstetrics, Gynecology and Reproductology, 199034 St. Petersburg, Russia; (E.S.V.); (A.S.G.)
| | - Andrey S. Glotov
- Department of Genomic Medicine, D.O. Ott Research Institute of Obstetrics, Gynecology and Reproductology, 199034 St. Petersburg, Russia; (E.S.V.); (A.S.G.)
- Laboratory of Biobanking and Genomic Medicine, Institute of Translation Biomedicine, St. Petersburg State University, 199034 St. Petersburg, Russia
| | - Yury O. Chernoff
- Laboratory of Amyloid Biology, St. Petersburg State University, 199034 St. Petersburg, Russia; (E.M.G.); (S.A.F.); (Y.O.C.)
- School of Biological Sciences, Georgia Institute of Technology, Atlanta, GA 30332, USA
| | - Aleksandr A. Rubel
- Laboratory of Amyloid Biology, St. Petersburg State University, 199034 St. Petersburg, Russia; (E.M.G.); (S.A.F.); (Y.O.C.)
- Department of Genetics and Biotechnology, St. Petersburg State University, 199034 St. Petersburg, Russia
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Cheng SB, Nakashima A, Huber WJ, Davis S, Banerjee S, Huang Z, Saito S, Sadovsky Y, Sharma S. Pyroptosis is a critical inflammatory pathway in the placenta from early onset preeclampsia and in human trophoblasts exposed to hypoxia and endoplasmic reticulum stressors. Cell Death Dis 2019; 10:927. [PMID: 31804457 PMCID: PMC6895177 DOI: 10.1038/s41419-019-2162-4] [Citation(s) in RCA: 143] [Impact Index Per Article: 28.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2019] [Revised: 09/27/2019] [Accepted: 11/04/2019] [Indexed: 12/13/2022]
Abstract
Systemic manifestation of preeclampsia (PE) is associated with circulating factors, including inflammatory cytokines and damage-associated molecular patterns (DAMPs), or alarmins. However, it is unclear whether the placenta directly contributes to the increased levels of these inflammatory triggers. Here, we demonstrate that pyroptosis, a unique inflammatory cell death pathway, occurs in the placenta predominantly from early onset PE, as evidenced by elevated levels of active caspase-1 and its substrate or cleaved products, gasdermin D (GSDMD), IL-1β, and IL-18. Using cellular models mimicking pathophysiological conditions (e.g., autophagy deficiency, hypoxia, and endoplasmic reticulum (ER) stress), we observed that pyroptosis could be induced in autophagy-deficient human trophoblasts treated with sera from PE patients as well as in primary human trophoblasts exposed to hypoxia. Exposure to hypoxia elicits excessive unfolded protein response (UPR) and ER stress and activation of the NOD-like receptor pyrin-containing 3 (NLRP3) inflammasome in primary human trophoblasts. Thioredoxin-interacting protein (TXNIP), a marker for hyperactivated UPR and a crucial signaling molecule linked to NLRP3 inflammasome activation, is significantly increased in hypoxia-treated trophoblasts. No evidence was observed for necroptosis-associated events. Importantly, these molecular events in hypoxia-treated human trophoblasts are significantly observed in placental tissue from women with early onset PE. Taken together, we propose that placental pyroptosis is a key event that induces the release of factors into maternal circulation that possibly contribute to severe sterile inflammation and early onset PE pathology.
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Affiliation(s)
- Shi-Bin Cheng
- Departments of Pediatrics, Obstetrics and Gynecology and Pathology, Women and Infants Hospital of Rhode Island, Warren Alpert Medical School of Brown University, Providence, RI, USA.
| | - Akitoshi Nakashima
- Department of Obstetrics and Gynecology, Faculty of Medicine, University of Toyama, Toyama, Japan
| | - Warren J Huber
- Departments of Pediatrics, Obstetrics and Gynecology and Pathology, Women and Infants Hospital of Rhode Island, Warren Alpert Medical School of Brown University, Providence, RI, USA
| | - Sarah Davis
- Departments of Pediatrics, Obstetrics and Gynecology and Pathology, Women and Infants Hospital of Rhode Island, Warren Alpert Medical School of Brown University, Providence, RI, USA
| | - Sayani Banerjee
- Departments of Pediatrics, Obstetrics and Gynecology and Pathology, Women and Infants Hospital of Rhode Island, Warren Alpert Medical School of Brown University, Providence, RI, USA
| | - Zheping Huang
- Departments of Pediatrics, Obstetrics and Gynecology and Pathology, Women and Infants Hospital of Rhode Island, Warren Alpert Medical School of Brown University, Providence, RI, USA
| | - Shigeru Saito
- Department of Obstetrics and Gynecology, Faculty of Medicine, University of Toyama, Toyama, Japan
| | - Yoel Sadovsky
- Magee-Womens Research Institute, Department of Obstetrics and Gynecology and Reproductive Sciences, University of Pittsburgh, Pittsburgh, PA, USA
| | - Surendra Sharma
- Departments of Pediatrics, Obstetrics and Gynecology and Pathology, Women and Infants Hospital of Rhode Island, Warren Alpert Medical School of Brown University, Providence, RI, USA.
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Jiang Y, Zhang S, Zhang X, Li N, Zhang Q, Guo X, Chi X, Tong M. Peptidomic analysis of zebrafish embryos exposed to polychlorinated biphenyls and their impact on eye development. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 175:164-172. [PMID: 30897415 DOI: 10.1016/j.ecoenv.2019.03.015] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Revised: 02/22/2019] [Accepted: 03/04/2019] [Indexed: 06/09/2023]
Abstract
Polychlorinated biphenyls (PCBs), a class of persistent organic pollutant, are closely related to abnormal eye development in children. However, little is known regarding the role of peptides in the development of PCB-induced ocular dysplasia. To characterize the nature of PCB exposure on peptides involved in the development of the ocular system, we used liquid chromatography-mass spectrometry/mass spectrometry (LC-MS/MS) to detect differential expression of peptides between normal and PCB-exposed zebrafish embryos. A total of 7900 peptides were analyzed, 90 of which were differentially expressed, with 29 being up-regulated and 61 down-regulated. These peptides were investigated using ingenuity pathway analysis (IPA) and gene ontology (GO) analysis to explore their role in eye development. This study identified 18 peptides associated with the development of the optic nerve and ocular system in the PCB-exposure group, as well as 10 peptides that are located in the functional domain of their precursor proteins. These peptides provide potential biomarkers for the treatment of ocular dysplasia caused by PCBs and may help us understand the mechanism of abnormal eye development caused by organic pollutants.
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Affiliation(s)
- Yue Jiang
- Department of Pediatrics, Nanjing Medical University, Nanjing 210004, China
| | - Shuchun Zhang
- Department of Pediatrics, Nanjing Medical University, Nanjing 210004, China
| | - Xin Zhang
- Department of Pediatrics, Nanjing Medical University, Nanjing 210004, China; Department of Pediatrics, Nanjing Maternity and Child Health Care Hospital, Obstetrics and Gynecology Hospital affiliated to Nanjing Medical University, Nanjing, China
| | - Nan Li
- Ningbo First Hospital | Ningbo Hospital of Zhejiang University, Ningbo 315010, China
| | - Qingyu Zhang
- Department of Pediatrics, Nanjing Medical University, Nanjing 210004, China
| | - Xirong Guo
- Department of Pediatrics, Nanjing Medical University, Nanjing 210004, China; Department of Pediatrics, Nanjing Maternity and Child Health Care Hospital, Obstetrics and Gynecology Hospital affiliated to Nanjing Medical University, Nanjing, China
| | - Xia Chi
- Department of Pediatrics, Nanjing Medical University, Nanjing 210004, China; Department of Pediatrics, Nanjing Maternity and Child Health Care Hospital, Obstetrics and Gynecology Hospital affiliated to Nanjing Medical University, Nanjing, China.
| | - Meiling Tong
- Department of Pediatrics, Nanjing Medical University, Nanjing 210004, China; Department of Pediatrics, Nanjing Maternity and Child Health Care Hospital, Obstetrics and Gynecology Hospital affiliated to Nanjing Medical University, Nanjing, China.
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Nakashima A, Tsuda S, Kusabiraki T, Aoki A, Ushijima A, Shima T, Cheng SB, Sharma S, Saito S. Current Understanding of Autophagy in Pregnancy. Int J Mol Sci 2019; 20:ijms20092342. [PMID: 31083536 PMCID: PMC6539256 DOI: 10.3390/ijms20092342] [Citation(s) in RCA: 72] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Revised: 05/09/2019] [Accepted: 05/10/2019] [Indexed: 12/19/2022] Open
Abstract
Autophagy is an evolutionarily conserved process in eukaryotes to maintain cellular homeostasis under environmental stress. Intracellular control is exerted to produce energy or maintain intracellular protein quality controls. Autophagy plays an important role in embryogenesis, implantation, and maintenance of pregnancy. This role includes supporting extravillous trophoblasts (EVTs) that invade the decidua (endometrium) until the first third of uterine myometrium and migrate along the lumina of spiral arterioles under hypoxic and low-nutrient conditions in early pregnancy. In addition, autophagy inhibition has been linked to poor placentation—a feature of preeclamptic placentas—in a placenta-specific autophagy knockout mouse model. Studies of autophagy in human placentas have revealed controversial results, especially with regard to preeclampsia and gestational diabetes mellitus (GDM). Without precise estimation of autophagy flux, wrong interpretation would lead to fixed tissues. This paper presents a review of the role of autophagy in pregnancy and elaborates on the interpretation of autophagy in human placental tissues.
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Affiliation(s)
- Akitoshi Nakashima
- Department of Obstetrics and Gynecology, University of Toyama, Toyama 930-0194, Japan.
| | - Sayaka Tsuda
- Department of Obstetrics and Gynecology, University of Toyama, Toyama 930-0194, Japan.
| | - Tae Kusabiraki
- Department of Obstetrics and Gynecology, University of Toyama, Toyama 930-0194, Japan.
| | - Aiko Aoki
- Department of Obstetrics and Gynecology, University of Toyama, Toyama 930-0194, Japan.
| | - Akemi Ushijima
- Department of Obstetrics and Gynecology, University of Toyama, Toyama 930-0194, Japan.
| | - Tomoko Shima
- Department of Obstetrics and Gynecology, University of Toyama, Toyama 930-0194, Japan.
| | - Shi-Bin Cheng
- Departments of Pediatrics, Women and Infants Hospital of Rhode Island, Warren Alpert Medical School of Brown University, Providence, RI 02905, USA.
| | - Surendra Sharma
- Departments of Pediatrics, Women and Infants Hospital of Rhode Island, Warren Alpert Medical School of Brown University, Providence, RI 02905, USA.
| | - Shigeru Saito
- Department of Obstetrics and Gynecology, University of Toyama, Toyama 930-0194, Japan.
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Human pregnancy zone protein stabilizes misfolded proteins including preeclampsia- and Alzheimer's-associated amyloid beta peptide. Proc Natl Acad Sci U S A 2019; 116:6101-6110. [PMID: 30850528 PMCID: PMC6442606 DOI: 10.1073/pnas.1817298116] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
Pregnancy is a unique physiological state involving biological stresses that promote protein damage (misfolding) within the maternal body. Currently, little is known regarding how the maternal body copes with elevated protein misfolding in pregnancy. This is important, because the accumulation of misfolded proteins underlies many human disorders, including preeclampsia, a serious complication of pregnancy. In this study, we show that pregnancy zone protein (PZP) efficiently inhibits the aggregation of misfolded proteins, including the amyloid beta peptide, which forms plaques in preeclampsia and in Alzheimer’s disease. We propose that up-regulation of PZP is a major maternal adaptation that helps to maintain protein homeostasis during pregnancy. Moreover, pregnancy-independent up-regulation of PZP indicates that its chaperone function could be broadly important in humans. Protein misfolding underlies the pathology of a large number of human disorders, many of which are age-related. An exception to this is preeclampsia, a leading cause of pregnancy-associated morbidity and mortality in which misfolded proteins accumulate in body fluids and the placenta. We demonstrate that pregnancy zone protein (PZP), which is dramatically elevated in maternal plasma during pregnancy, efficiently inhibits in vitro the aggregation of misfolded proteins, including the amyloid beta peptide (Aβ) that is implicated in preeclampsia as well as with Alzheimer’s disease. The mechanism by which this inhibition occurs involves the formation of stable complexes between PZP and monomeric Aβ or small soluble Aβ oligomers formed early in the aggregation pathway. The chaperone activity of PZP is more efficient than that of the closely related protein alpha-2-macroglobulin (α2M), although the chaperone activity of α2M is enhanced by inducing its dissociation into PZP-like dimers. By immunohistochemistry analysis, PZP is found primarily in extravillous trophoblasts in the placenta. In severe preeclampsia, PZP-positive extravillous trophoblasts are adjacent to extracellular plaques containing Aβ, but PZP is not abundant within extracellular plaques. Our data support the conclusion that the up-regulation of PZP during pregnancy represents a major maternal adaptation that helps to maintain extracellular proteostasis during gestation in humans. We propose that overwhelming or disrupting the chaperone function of PZP could underlie the accumulation of misfolded proteins in vivo. Attempts to characterize extracellular proteostasis in pregnancy will potentially have broad-reaching significance for understanding disease-related protein misfolding.
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Balakrishna S, Nagarajappa C, Rangappa S. Misfolding linked mutations of SERPINA1 gene are uncommon in preeclampsia. ARCHIVES OF MEDICINE AND HEALTH SCIENCES 2019. [DOI: 10.4103/amhs.amhs_79_19] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Rabah SA, Gowan IL, Pagnin M, Osman N, Richardson SJ. Thyroid Hormone Distributor Proteins During Development in Vertebrates. Front Endocrinol (Lausanne) 2019; 10:506. [PMID: 31440205 PMCID: PMC6694296 DOI: 10.3389/fendo.2019.00506] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/14/2019] [Accepted: 07/11/2019] [Indexed: 12/16/2022] Open
Abstract
Thyroid hormones (THs) are ancient hormones that not only influence the growth, development and metabolism of vertebrates but also affect the metabolism of (at least some) bacteria. Synthesized in the thyroid gland (or follicular cells in fish not having a discrete thyroid gland), THs can act on target cells by genomic or non-genomic mechanisms. Either way, THs need to get from their site of synthesis to their target cells throughout the body. Despite being amphipathic in structure, THs are lipophilic and hence do not freely diffuse in the aqueous environments of blood or cerebrospinal fluid (in contrast to hydrophilic hormones). TH Distributor Proteins (THDPs) have evolved to enable the efficient distribution of THs in the blood and cerebrospinal fluid. In humans, the THDPs are albumin, transthyretin (TTR), and thyroxine-binding globulin (TBG). These three proteins have distinct patterns of regulation in both ontogeny and phylogeny. During development, an additional THDP with higher affinity than those in the adult, is present during the stage of peak TH concentrations in blood. Although TTR is the only THDP synthesized in the central nervous system (CNS), all THDPs from blood are present in the CSF (for each species). However, the ratio of albumin to TTR differs in the CSF compared to the blood. Humans lacking albumin or TBG have been reported and can be asymptomatic, however a human lacking TTR has not been documented. Conversely, there are many diseases either caused by TTR or that have altered levels of TTR in the blood or CSF associated with them. The first world-wide RNAi therapy has just been approved for TTR amyloidosis.
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Changes in the structure and function of the brain years after Pre-eclampsia. Ageing Res Rev 2018; 47:49-54. [PMID: 30026172 DOI: 10.1016/j.arr.2018.06.006] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2018] [Revised: 06/02/2018] [Accepted: 06/29/2018] [Indexed: 11/23/2022]
Abstract
Pre-eclampsia (PE) is a pregnancy specific syndrome that affects multiple organs including the brain. PE resolves after delivery of the placenta. Nonetheless, PE is a predisposing factor for cardiovascular disorders and hypertension later in life. These conditions are associated with a cognitive decline and dementia later in life. Studies have suggested that there may be long term pathological changes within the brain of the woman after PE/eclampsia and PE may be a risk marker for early cerebrovascular impairment. The aim of this review is to provide an insight into the possible long-term effect of PE and eclampsia on the brain structure and function with the probability of PE being a risk factor for neurodegenerative development. Long term effects of PE include cognitive impairment such as memory loss, attention deficit and motor speed impairment. Also, the pathology of the brain seems to be much affected later in life in women with history of PE/eclampsia. Certain changes in the structure and function of the brain observed among women with history of PE/eclampsia are similar to neurological disease like Alzheimer's disease (AD) and dementia.
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Sharma S. Autophagy-Based Diagnosis of Pregnancy Hypertension and Pre-Eclampsia. THE AMERICAN JOURNAL OF PATHOLOGY 2018; 188:2457-2460. [PMID: 30240596 PMCID: PMC6207097 DOI: 10.1016/j.ajpath.2018.09.001] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2018] [Revised: 09/06/2018] [Accepted: 09/07/2018] [Indexed: 12/11/2022]
Abstract
This commentary highlights the article by Aoki et al that shows that Atg7 deficiency-mediated placental autophagy imbalance may contribute towards pre-eclampsia.
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Affiliation(s)
- Surendra Sharma
- Department of Pediatrics, Women and Infants Hospital, Warren Alpert Medical School of Brown University, Providence, Rhode Island.
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35
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Wieczorek E, Chitruń A, Ożyhar A. Destabilised human transthyretin shapes the morphology of calcium carbonate crystals. Biochim Biophys Acta Gen Subj 2018; 1863:313-324. [PMID: 30394286 DOI: 10.1016/j.bbagen.2018.10.017] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2018] [Revised: 10/12/2018] [Accepted: 10/26/2018] [Indexed: 12/20/2022]
Abstract
Human transthyretin (TTR) is a homotetramer that transports thyroid hormones and retinol in the serum and cerebrospinal fluid. TTR is also an intracellular protein found in tissues such as those in the brain, eye and pancreas. TTR is a nutrition marker, reflecting the health of the organism, and TTR levels are linked to the normal and diseased states of the body. The switch from a protective to a pathological role is attributed to the destabilisation of the TTR structure, which leads to tetramer dissociation and amyloid formation. Native and destabilised TTR have been associated with osteoarthritis and bone density in humans. Moreover, TTR is present in eggshell mammillary cones; therefore, we verified the putative TTR engagement in the process of mineral formation. Using an in vitro assay, we found that TTR affected calcium carbonate crystal growth and morphology, producing asymmetric crystals with a complex nanocrystalline composition. The crystals possessed rounded edges and corners and irregular etch pits, suggesting the selective inhibition of crystal growth and/or dissolution imposed by TTR. The occurrence of many porosities, fibrillary inclusions and amorphous precipitates suggested that destabilisation of the TTR structure is an important factor involved in the mineralisation process. Crystals grown in the presence of TTR exhibited the characteristic features of crystals controlled by biomineralisation-active proteins, suggesting novel functions of TTR in the mineral formation process.
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Affiliation(s)
- Elżbieta Wieczorek
- Department of Biochemistry, Faculty of Chemistry, Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland.
| | - Anna Chitruń
- Department of Biochemistry, Faculty of Chemistry, Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland
| | - Andrzej Ożyhar
- Department of Biochemistry, Faculty of Chemistry, Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland
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36
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Landers KA, Li H, Mortimer RH, McLeod DSA, d'Emden MC, Richard K. Transthyretin uptake in placental cells is regulated by the high-density lipoprotein receptor, scavenger receptor class B member 1. Mol Cell Endocrinol 2018; 474:89-96. [PMID: 29481863 DOI: 10.1016/j.mce.2018.02.014] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Revised: 01/31/2018] [Accepted: 02/23/2018] [Indexed: 01/04/2023]
Abstract
Transfer of thyroid hormone into cells is critical for normal physiology and transplacental transfer of maternal thyroid hormones is essential for normal fetal growth and development. Free thyroid hormone is known to enter cells through specific cell surface transport proteins, and for many years this uptake of unbound thyroid hormones was assumed to be the only relevant mechanism. Recently, evidence has emerged of alternate pathways for hormone entry into cells that are dependent on hormone binding proteins. In this study we identify the high-density lipoprotein receptor Scavenger Receptor class B member 1 (SR-B1) as important in the uptake and transport of transthyretin-bound thyroid hormone by placental trophoblast cells. High-density lipoprotein increases expression of SR-B1 in placental cells but also reduces uptake of transthyretin-thyroid hormone through the SR-B1 transporter. SR-B1 is expressed in many cells and this study suggests that SR-B1 may be universally important in thyroid hormone uptake. Further investigation of SR-B1-TTR interactions may fundamentally change our understanding of hormone biology and have important clinical consequences.
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Affiliation(s)
- Kelly A Landers
- Conjoint Endocrine Laboratory, Chemical Pathology, Pathology Queensland, Queensland Health, Herston, Qld 4029, Australia
| | - Huika Li
- Conjoint Endocrine Laboratory, Chemical Pathology, Pathology Queensland, Queensland Health, Herston, Qld 4029, Australia
| | - Robin H Mortimer
- Conjoint Endocrine Laboratory, Chemical Pathology, Pathology Queensland, Queensland Health, Herston, Qld 4029, Australia
| | - Donald S A McLeod
- Population Health Department, QIMR Berghofer Medical Research Institute, Herston, Qld 4029, Australia; Department of Endocrinology and Diabetes, Royal Brisbane and Women's Hospital, Herston, Qld 4029, Australia
| | - Michael C d'Emden
- Department of Endocrinology and Diabetes, Royal Brisbane and Women's Hospital, Herston, Qld 4029, Australia; School of Medicine, University of Queensland, Herston, Qld 4029, Australia
| | - Kerry Richard
- Conjoint Endocrine Laboratory, Chemical Pathology, Pathology Queensland, Queensland Health, Herston, Qld 4029, Australia; School of Medicine, University of Queensland, Herston, Qld 4029, Australia; School of Biomedical Sciences, Queensland University of Technology, Brisbane, Qld 4000, Australia.
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37
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Brothers HM, Gosztyla ML, Robinson SR. The Physiological Roles of Amyloid-β Peptide Hint at New Ways to Treat Alzheimer's Disease. Front Aging Neurosci 2018; 10:118. [PMID: 29922148 PMCID: PMC5996906 DOI: 10.3389/fnagi.2018.00118] [Citation(s) in RCA: 210] [Impact Index Per Article: 35.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2018] [Accepted: 04/06/2018] [Indexed: 12/11/2022] Open
Abstract
Amyloid-ß (Aß) is best known as the misfolded peptide that is involved in the pathogenesis of Alzheimer's disease (AD), and it is currently the primary therapeutic target in attempts to arrest the course of this disease. This notoriety has overshadowed evidence that Aß serves several important physiological functions. Aß is present throughout the lifespan, it has been found in all vertebrates examined thus far, and its molecular sequence shows a high degree of conservation. These features are typical of a factor that contributes significantly to biological fitness, and this suggestion has been supported by evidence of functions that are beneficial for the brain. The putative roles of Aß include protecting the body from infections, repairing leaks in the blood-brain barrier, promoting recovery from injury, and regulating synaptic function. Evidence for these beneficial roles comes from in vitro and in vivo studies, which have shown that the cellular production of Aß rapidly increases in response to a physiological challenge and often diminishes upon recovery. These roles are further supported by the adverse outcomes of clinical trials that have attempted to deplete Aß in order to treat AD. We suggest that anti-Aß therapies will produce fewer adverse effects if the known triggers of Aß deposition (e.g., pathogens, hypertension, and diabetes) are addressed first.
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Affiliation(s)
- Holly M Brothers
- Department of Psychology, The Ohio State University Columbus, Columbus, OH, United States
| | - Maya L Gosztyla
- Department of Neuroscience, The Ohio State University Columbus, Columbus, OH, United States
| | - Stephen R Robinson
- Discipline of Psychology, School of Health and Biomedical Sciences, RMIT University, Melbourne, VIC, Australia
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38
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Saha S, Chakraborty S, Bhattacharya A, Biswas A, Ain R. MicroRNA regulation of Transthyretin in trophoblast differentiation and Intra-Uterine Growth Restriction. Sci Rep 2017; 7:16548. [PMID: 29185488 PMCID: PMC5707432 DOI: 10.1038/s41598-017-16566-0] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2017] [Accepted: 11/14/2017] [Indexed: 02/07/2023] Open
Abstract
Placental trophoblast cells produce various cytokines, transporters vital to normal embryogenesis. Transthyretin (TTR) aids trans-placental passage of maternal thyroxin (TH) to fetal circulation. Inadequate TH delivery leads to developmental abnormality. Regulation of TTR biosynthesis in placenta is critical for normal embryo development. We showed here that TTR transcripts were expressed more in fetal placenta. Using bioinformatic analysis and confirmation with dual-luciferase reporter assays, we found that miR-200a-3p and miR-141-3p inhibited TTR expression by directly binding to the 3'UTR of TTR, which is reversed by mutation in the microRNA binding site. Differentiation of human trophoblast BeWo cells was associated with decreased TTR transcript and protein levels with concomitant increase in the levels of both microRNAs. Interestingly, ectopic overexpression of the microRNA mimics abrogated thyroxin uptake by BeWo cells, which was reversed by the corresponding inhibitors. Furthermore, in a rat model of intra-uterine growth restriction (IUGR), TTR expression decreased significantly in placenta with reciprocal rise in miR-141-3p but not 200a-3p. In human IUGR placenta, TTR transcript and protein levels were significantly lower associated with high expression of miR-141-3p but not 200a-3p. These data provides new insight into physiological role of miR-141-3p in regulating TTR during trophoblast differentiation and IUGR.
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Affiliation(s)
- Sarbani Saha
- Division of Cell Biology and Physiology, CSIR-Indian Institute of Chemical Biology, Kolkata, 700032, India
| | - Shreeta Chakraborty
- Division of Cell Biology and Physiology, CSIR-Indian Institute of Chemical Biology, Kolkata, 700032, India
| | | | - Arati Biswas
- Calcutta National Medical College, Kolkata, 700014, India
| | - Rupasri Ain
- Division of Cell Biology and Physiology, CSIR-Indian Institute of Chemical Biology, Kolkata, 700032, India.
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Zhang W, Chen X, Yan Z, Chen Y, Cui Y, Chen B, Huang C, Zhang W, Yin X, He QY, He F, Wang T. Detergent-Insoluble Proteome Analysis Revealed Aberrantly Aggregated Proteins in Human Preeclampsia Placentas. J Proteome Res 2017; 16:4468-4480. [PMID: 28965414 DOI: 10.1021/acs.jproteome.7b00352] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Preeclampsia (PE) is a placenta disease, featured by hypertension, proteinuria, and other multiorgan dysfunctions, and its etiology is unclear. We and others have shown that intensive endoplasmic reticulum (ER) stress and unfolded protein response (UPR) occur in the PE placenta. In this study, we isolated detergent-insoluble proteins (DIPs) from human placenta tissues, which were enriched with protein aggregates, to characterize the placenta UPR in PE. With data-independent acquisition (DIA) mass spectrometry, we identified 2066 DIPs across all normal (n = 10) and PE (n = 10) placenta samples, among which 110 and 108 DIPs were significantly up- and down-regulated in PE, respectively. Per clustering analysis, differential DIPs could generally distinguish PE from normal placentas. We verified the MS quantitation of endoglin and vimentin by immunoblotting. In addition, we observed that PE placenta tissues have remarkably more endoglin in the cytoplasm. Furthermore, we found that DIPs were evenly distributed across different chromosomes and could be enriched in diversified gene ontology terms, while differential DIPs avoided to distribute on X-chromosome. Significantly up-regulated DIPs in PE were focused on the top functions of lipid metabolism, while 23 of these DIPs could form the top network regulating cellular movement, development, growth, and proliferation. Our results implicate that human PE placentas have disease-relevant differential DIPs, which reflect aberrantly aggregated proteins of placental tissues. The mass spectrometry proteomics data have been deposited to ProteomeXchange consortium with the data set identifier PXD006654, and iProX database (accession number: IPX0000948000).
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Affiliation(s)
- Wanling Zhang
- Key Laboratory of Functional Protein Research of Guangdong Higher Education Institutes, Institute of Life and Health Engineering, College of Life Science and Technology, Jinan University , 601 Huangpu Avenue West, Guangzhou, Guangdong 510632, China
| | - Xing Chen
- Key Laboratory of Functional Protein Research of Guangdong Higher Education Institutes, Institute of Life and Health Engineering, College of Life Science and Technology, Jinan University , 601 Huangpu Avenue West, Guangzhou, Guangdong 510632, China
| | - Ziqi Yan
- Key Laboratory of Functional Protein Research of Guangdong Higher Education Institutes, Institute of Life and Health Engineering, College of Life Science and Technology, Jinan University , 601 Huangpu Avenue West, Guangzhou, Guangdong 510632, China
| | - Yang Chen
- Key Laboratory of Functional Protein Research of Guangdong Higher Education Institutes, Institute of Life and Health Engineering, College of Life Science and Technology, Jinan University , 601 Huangpu Avenue West, Guangzhou, Guangdong 510632, China
| | - Yizhi Cui
- Key Laboratory of Functional Protein Research of Guangdong Higher Education Institutes, Institute of Life and Health Engineering, College of Life Science and Technology, Jinan University , 601 Huangpu Avenue West, Guangzhou, Guangdong 510632, China
| | | | | | | | - Xingfeng Yin
- Key Laboratory of Functional Protein Research of Guangdong Higher Education Institutes, Institute of Life and Health Engineering, College of Life Science and Technology, Jinan University , 601 Huangpu Avenue West, Guangzhou, Guangdong 510632, China
| | - Qing-Yu He
- Key Laboratory of Functional Protein Research of Guangdong Higher Education Institutes, Institute of Life and Health Engineering, College of Life Science and Technology, Jinan University , 601 Huangpu Avenue West, Guangzhou, Guangdong 510632, China
| | | | - Tong Wang
- Key Laboratory of Functional Protein Research of Guangdong Higher Education Institutes, Institute of Life and Health Engineering, College of Life Science and Technology, Jinan University , 601 Huangpu Avenue West, Guangzhou, Guangdong 510632, China
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40
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Autophagy regulation in preeclampsia: Pros and cons. J Reprod Immunol 2017; 123:17-23. [DOI: 10.1016/j.jri.2017.08.006] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2017] [Accepted: 08/16/2017] [Indexed: 12/11/2022]
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41
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Aggregated transthyretin is specifically packaged into placental nano-vesicles in preeclampsia. Sci Rep 2017; 7:6694. [PMID: 28751735 PMCID: PMC5532246 DOI: 10.1038/s41598-017-07017-x] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2017] [Accepted: 06/20/2017] [Indexed: 12/24/2022] Open
Abstract
In preeclampsia, the serum levels of transthyretin, a carrier protein for thyroxine, are elevated. Transthyretin isolated from preeclamptic serum is also aggregated and can induce preeclampsia-like symptoms in pregnant IL10-/- mice. Using western blotting, immunofluorescence, ELISA and qRT-PCR, we investigated the production of transthyretin by preeclamptic placentae and whether transthyretin is carried into the maternal circulation via placental extracellular vesicles. Both total and aggregated transthyretin were present in higher levels in preeclamptic placentae compared to normotensive placentae (p < 0.05, n = 7), however the levels of transythretin mRNA were not significantly different (n = 8). Preeclamptic placentae secreted similar levels of total transthyretin compared to normotensive placentae (2352 ± 2949 ng/mL vs. 3250 ± 1864 ng/mL, mean ± SD, p > 0.05, n = 8), however in preeclampsia, a significant proportion is vesicle-associated (~48% vs 0%). Increased levels of aggregated transthyretin were specifically associated to preeclamptic nano-vesicles (p < 0.02, n = 8). This study showed that the placenta actively produces transthyretin and in preeclampsia, a significant amount is extruded into the maternal circulation via placental exracellular vesicles. The increased aggregation of transthyretin in preeclampsia occurs at the post-transcriptional level and while preeclamptic nano-vesicles may be removing a toxic aggregated protein from the placenta, they may also be delivering aggregated transthyretin to specific maternal organs, contributing to the pathogenesis of preeclampsia.
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Dai X, Song X, Rui C, Meng L, Xue X, Ding H, Shen R, Li J, Li J, Lu Y, Long W. Peptidome Analysis of Human Serum From Normal and Preeclamptic Pregnancies. J Cell Biochem 2017; 118:4341-4348. [PMID: 28430386 DOI: 10.1002/jcb.26087] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2016] [Accepted: 04/20/2017] [Indexed: 12/14/2022]
Abstract
Preeclampsia is a kind of disease that severely harms the health of pregnant women and infants. To better understand the molecular mechanisms involved in preeclampsia, we used liquid chromatography-mass spectrometry/mass spectrometry (LC-MS/MS) to construct a comparative peptidomic profiling of human serum between normal and preeclamptic pregnancies. A total of 201 peptides were confidently identified, with 21 up-regulated and three down-regulated. Further analysis indicated that these differentially expressed peptides correlate with enzyme regulator activity, biological regulation, and coagulation cascades occurring during pathological changes of preeclampsia. The identification of key peptides in serum may serve not only as a basis for better understanding and further exploring the etiology and pathogenesis of PE, but also as potential biomarkers and in providing targets for future therapy in PE, especially in early onset severe PE (sPE). J. Cell. Biochem. 118: 4341-4348, 2017. © 2017 Wiley Periodicals, Inc.
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Affiliation(s)
- Xiaonan Dai
- Department of Obstetrics, Obstetrics and Gynecology Hospital Affiliated to Nanjing Medical University, Nanjing, 210004, China
| | - Xuejing Song
- Department of Obstetrics, Obstetrics and Gynecology Hospital Affiliated to Nanjing Medical University, Nanjing, 210004, China.,Fourth Clinical Medicine College, Nanjing Medical University, Nanjing, China
| | - Can Rui
- Department of Obstetrics, Obstetrics and Gynecology Hospital Affiliated to Nanjing Medical University, Nanjing, 210004, China
| | - Li Meng
- Nanjing Maternity and Child Health Medical Institute, Obstetrics and Gynecology Hospital Affiliated to Nanjing Medical University, Nanjing, 210004, China
| | - Xuan Xue
- Department of Obstetrics, Obstetrics and Gynecology Hospital Affiliated to Nanjing Medical University, Nanjing, 210004, China
| | - Hongjuan Ding
- Department of Obstetrics, Obstetrics and Gynecology Hospital Affiliated to Nanjing Medical University, Nanjing, 210004, China
| | - Rong Shen
- Nanjing Maternity and Child Health Medical Institute, Obstetrics and Gynecology Hospital Affiliated to Nanjing Medical University, Nanjing, 210004, China
| | - Jun Li
- State Key Laboratory of Reproductive Medicine, Department of Plastic and Cosmetic Surgery, Maternal and Child Health Medical Institute, Obstetrics and Gynecology Hospital Affiliated to Nanjing Medical University, Nanjing, 210004, China
| | - Jingyun Li
- State Key Laboratory of Reproductive Medicine, Department of Plastic and Cosmetic Surgery, Maternal and Child Health Medical Institute, Obstetrics and Gynecology Hospital Affiliated to Nanjing Medical University, Nanjing, 210004, China
| | - Yuanqing Lu
- Department of Obstetrics, Obstetrics and Gynecology Hospital Affiliated to Nanjing Medical University, Nanjing, 210004, China
| | - Wei Long
- Department of Obstetrics, Obstetrics and Gynecology Hospital Affiliated to Nanjing Medical University, Nanjing, 210004, China
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Andolf EG, Sydsjö GC, Bladh MK, Berg G, Sharma S. Hypertensive disorders in pregnancy and later dementia: a Swedish National Register Study. Acta Obstet Gynecol Scand 2017; 96:464-471. [DOI: 10.1111/aogs.13096] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2016] [Accepted: 01/08/2017] [Indexed: 11/29/2022]
Affiliation(s)
- Ellika G. Andolf
- Division of Obstetrics and Gynecology; Department of Clinical Sciences; Karolinska Institute; Danderyd Hospital; Stockholm Sweden
| | - Gunilla C.M. Sydsjö
- Obstetrics and Gynecology; Department of Clinical and Experimental Medicine; Faculty of Medicine; Linköping University; Linköping Sweden
| | - Marie K. Bladh
- Obstetrics and Gynecology; Department of Clinical and Experimental Medicine; Faculty of Medicine; Linköping University; Linköping Sweden
| | - Goran Berg
- Obstetrics and Gynecology; Department of Clinical and Experimental Medicine; Faculty of Medicine; Linköping University; Linköping Sweden
| | - Surendra Sharma
- Department of Pediatrics; Women and Infants Hospital; Warren Alpert Medical School of Brown University; Providence RI USA
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44
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Gong L, Zhu L, Wang S, Zhang Z. Transthyretin regulates the migration and invasion of JEG-3 cells. Oncol Lett 2016; 13:1242-1246. [PMID: 28454241 PMCID: PMC5403309 DOI: 10.3892/ol.2016.5545] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2016] [Accepted: 11/28/2016] [Indexed: 12/22/2022] Open
Abstract
Preeclampsia (PE) is a pregnancy-specific disorder characterized by new-onset hypertension and proteinuria that occurs after 20 weeks of gestation. It involves several organs and continues to be a leading cause of maternal and perinatal morbidity and mortality worldwide. Shallow trophoblast invasion is a common pathological feature of PE. Transthyretin (TTR) is a 56-kDa homotetrameric protein that binds thyroid hormone and retinol binding protein. Dysregulated TTR expression has been found in cases of PE. The aim of the present study was to determine the functional role of TTR in the migration and invasion of JEG-3 choriocarcinoma cells. JEG-3 cells were transfected with a plasmid construct expressing TTR (pCMV-Myc-TTR) or an empty plasmid (pCMV-Myc). Cell migration and invasion capacities were assessed by Transwell migration and invasion assays, respectively. These experiments demonstrated that TTR overexpression significantly increased the migration and invasion potential of JEG-3 cells. Matrix metalloproteinases (MMPs) are a family of zinc-containing endopeptidases capable of degrading a wide range of extracellular matrix components. Western blot analysis revealed that TTR overexpression resulted in significantly increased levels of MMP2 and MMP9 in JEG-3 cells. In conclusion, our findings suggest an important role for TTR in regulating trophoblast invasion and migration, representing a possible underlying pathological and molecular mechanisms of PE.
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Affiliation(s)
- Liyun Gong
- Department of Obstetrics and Gynecology, Chao-Yang Hospital, Capital Medical University, Beijing 100020, P.R. China
| | - Lei Zhu
- Department of Obstetrics and Gynecology, Chao-Yang Hospital, Capital Medical University, Beijing 100020, P.R. China
| | - Shuzhen Wang
- Department of Obstetrics and Gynecology, Chao-Yang Hospital, Capital Medical University, Beijing 100020, P.R. China
| | - Zhenyu Zhang
- Department of Obstetrics and Gynecology, Chao-Yang Hospital, Capital Medical University, Beijing 100020, P.R. China
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45
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Sipe JD, Benson MD, Buxbaum JN, Ikeda SI, Merlini G, Saraiva MJM, Westermark P. Amyloid fibril proteins and amyloidosis: chemical identification and clinical classification International Society of Amyloidosis 2016 Nomenclature Guidelines. Amyloid 2016; 23:209-213. [PMID: 27884064 DOI: 10.1080/13506129.2016.1257986] [Citation(s) in RCA: 387] [Impact Index Per Article: 48.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
The Nomenclature Committee of the International Society of Amyloidosis (ISA) met during the XVth Symposium of the Society, 3 July-7 July 2016, Uppsala, Sweden, to assess and formulate recommendations for nomenclature for amyloid fibril proteins and the clinical classification of the amyloidoses. An amyloid fibril must exhibit affinity for Congo red and with green, yellow or orange birefringence when the Congo red-stained deposits are viewed with polarized light. While congophilia and birefringence remain the gold standard for demonstration of amyloid deposits, new staining and imaging techniques are proving useful. To be included in the nomenclature list, in addition to congophilia and birefringence, the chemical identity of the protein must be unambiguously characterized by protein sequence analysis when possible. In general, it is insufficient to identify a mutation in the gene of a candidate amyloid protein without confirming the variant changes in the amyloid fibril protein. Each distinct form of amyloidosis is uniquely characterized by the chemical identity of the amyloid fibril protein that deposits in the extracellular spaces of tissues and organs and gives rise to the disease syndrome. The fibril proteins are designated as protein A followed by a suffix that is an abbreviation of the parent or precursor protein name. To date, there are 36 known extracellular fibril proteins in humans, 2 of which are iatrogenic in nature and 9 of which have also been identified in animals. Two newly recognized fibril proteins, AApoCII derived from apolipoprotein CII and AApoCIII derived from apolipoprotein CIII, have been added. AApoCII amyloidosis and AApoCIII amyloidosis are hereditary systemic amyloidoses. Intracellular protein inclusions displaying some of the properties of amyloid, "intracellular amyloid" have been reported. Two proteins which were previously characterized as intracellular inclusions, tau and α-synuclein, are now recognized to form extracellular deposits upon cell death and thus have been included in Table 1 as ATau and AαSyn.
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Affiliation(s)
- Jean D Sipe
- a Department of Biochemistry (Retired) , Boston University School of Medicine , Boston , MA , USA
| | - Merrill D Benson
- b Department of Pathology and Laboratory Medicine , Indiana University School of Medicine , Indianapolis , IN , USA
| | - Joel N Buxbaum
- c Department of Molecular and Experimental Medicine , The Scripps Research Institute , La Jolla , CA , USA
| | - Shu-Ichi Ikeda
- d Department of Medicine (Neurology and Rheumatology) , Shinshu University School of Medicine , Matsumoto , Japan
| | - Giampaolo Merlini
- e Amyloid Research and Treatment Center, University of Pavia and IRCCS Policlinico San Matteo , Pavia , Italy
| | - Maria J M Saraiva
- f Amyloid Unit, Institute of Molecular and Cellular Biology, University of Porto , Porto , Portugal , and
| | - Per Westermark
- g Department of Immunology , Genetics and Pathology, Uppsala University , Uppsala , Sweden
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Abstract
INTRODUCTION Preeclampsia is a major pregnancy disease, explained partly by genetic predispositions. STOX1, a transcription factor discovered in 2005, was the first gene directly associated with genetic forms of the disease. Alterations of STOX1 expression as well as STOX1 variants have also been associated to Alzheimer's disease. These observations make of this gene a putative therapeutic target. Area covered: Two major isoforms (STOX1A and STOX1B) are encoded by the gene and are theoretically able to compete for the same binding site, while only the most complete (STOX1A) is supposed to be able to activate gene expression. This makes the ratio between STOX1A and STOX1B as well as their position inside the cell (nucleus or cytoplasm) crucial to understand how STOX1 functions. STOX1 appears to have multiple gene targets, especially in pathways connected to inflammation, oxidative stress, and cell cycle. Expert opinion: STOX1-directed therapies, could be directed either towards its targets (genes or pathways), or directly at STOX1. For this the addressing of STOX1 to various cell compartments could theoretically be modified; also it could be possible of altering the balance between the two isoforms, through selectively inhibiting one of them, possibly improving the outcomes in severe preeclampsia.
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Affiliation(s)
- Daniel Vaiman
- a Department of Development, Reproduction and Cancer , Institut Cochin , Paris , France
| | - Francisco Miralles
- a Department of Development, Reproduction and Cancer , Institut Cochin , Paris , France
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Cheng SB, Sharma S. Preeclampsia and health risks later in life: an immunological link. Semin Immunopathol 2016; 38:699-708. [PMID: 27339196 DOI: 10.1007/s00281-016-0579-8] [Citation(s) in RCA: 61] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2016] [Accepted: 06/16/2016] [Indexed: 12/11/2022]
Abstract
Pregnancy represents a period of physiological stress, and although this stress is experienced for a very modest portion of life, it is now recognized as a window to women's future health, often by unmasking predispositions to conditions that only become symptomatic later in life. In normal pregnancy, the mother experiences mild metabolic syndrome-like condition through week 20 of gestation. A pronounced phenotype of metabolic syndrome may program pregnancy complications such as preeclampsia. Preeclampsia is a serious complication with a myriad of manifestations for mother and offspring. This pregnancy syndrome is a polygenic disease and has been now linked to higher incidence of cardiovascular disease, diabetes, and several other disorders associated with vulnerable organs. Furthermore, the offspring born to preeclamptic mothers also exhibit an elevated risk of cardiovascular disease, stroke, and mental disorders during adulthood. This suggests that preeclampsia not only exposes the mother and the fetus to complications during pregnancy but also programs chronic diseases in later life. The etiology of preeclampsia is thought to be primarily associated with poor placentation and entails excessive maternal inflammation and endothelial dysfunction. It is well established now that the maternal immune system and the placenta are involved in a highly choreographed cross-talk that underlies adequate spiral artery remodeling required for uteroplacental perfusion and free flow of nutrients to the fetus. Since normal pregnancy is associated with a sequence of events represented by temporal events of inflammation (implantation), anti-inflammation (gestation), and inflammation (parturition), it is quite possible that unscheduled alterations in these regulatory responses may lead to pathologic consequences. Although it is not clear whether immunological alterations occur early in pregnancy, it is proposed that dysregulated systemic and placental immunity contribute to impaired angiogenesis and the onset of preeclampsia. This review will focus on important aspects of the immune system that coordinate with placental dysfunction to program preeclampsia and influence health in later life.
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Affiliation(s)
- Shi-Bin Cheng
- Department of Pediatrics, Women and Infants' Hospital of Rhode Island, Warren Alpert Medical School of Brown University, 101 Dudley Street, Providence, RI, 02905, USA
| | - Surendra Sharma
- Department of Pediatrics, Women and Infants' Hospital of Rhode Island, Warren Alpert Medical School of Brown University, 101 Dudley Street, Providence, RI, 02905, USA.
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Lu Q, Liu C, Liu Y, Zhang N, Deng H, Zhang Z. Serum markers of pre-eclampsia identified on proteomics. J Obstet Gynaecol Res 2016; 42:1111-8. [PMID: 27279411 DOI: 10.1111/jog.13037] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2016] [Revised: 02/24/2016] [Accepted: 03/26/2016] [Indexed: 12/13/2022]
Abstract
AIM Pre-eclampsia (PE) is a disorder of pregnancy associated with maternal and fetal mortality and morbidity. The aim of the present study was to use proteomics to identify biomarkers of, and elucidate the pathogenesis of, PE. METHODS Serum samples were analyzed using peptide ligand library beads (PLLB) on liquid chromatography-mass spectrometry/mass spectrometry. Retinol-binding protein 4 (RBP4) was used as the target protein for further validation on enzyme-linked immunosorbent assay, immunohistochemistry and real-time polymerase chain reaction. Transwell invasion assay was used to evaluate whether RBP4 affects the invasive ability of trophoblast tumor cells. RESULTS Twenty upregulated and 17 downregulated proteins were differentially expressed between severe PE patients and healthy pregnant women. Those proteins were further classified according to molecular function and biological process according to the gene ontology terms. RBP4 concentration was significantly lower in women with severe PE than in those with healthy pregnancy. CONCLUSIONS RBP4 is able to function as biomarker to distinguish severe PE from normal pregnancy. More importantly, these results may shed light on the role of RPB4 in the pathogenesis in PE. Further studies are required to validate these results, and determine the precise role of RBP4 in the pathogenesis of PE.
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Affiliation(s)
- Qi Lu
- Department of Obstetrics and Gynecology, Beijing Chaoyang Hospital Affiliated Capital Medical University, Beijing, China
| | - Chongdong Liu
- Department of Obstetrics and Gynecology, Beijing Chaoyang Hospital Affiliated Capital Medical University, Beijing, China
| | - Ye Liu
- Department of Obstetrics and Gynecology, Beijing Chaoyang Hospital Affiliated Capital Medical University, Beijing, China
| | - Nawei Zhang
- Department of Obstetrics and Gynecology, Beijing Chaoyang Hospital Affiliated Capital Medical University, Beijing, China
| | - Haiteng Deng
- School of Life Sciences, Tsinghua University, Beijing, China
| | - Zhenyu Zhang
- Department of Obstetrics and Gynecology, Beijing Chaoyang Hospital Affiliated Capital Medical University, Beijing, China.
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Iakovleva I, Begum A, Brännström K, Wijsekera A, Nilsson L, Zhang J, Andersson PL, Sauer-Eriksson AE, Olofsson A. Tetrabromobisphenol A Is an Efficient Stabilizer of the Transthyretin Tetramer. PLoS One 2016; 11:e0153529. [PMID: 27093678 PMCID: PMC4836675 DOI: 10.1371/journal.pone.0153529] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2016] [Accepted: 03/30/2016] [Indexed: 01/15/2023] Open
Abstract
Amyloid formation of the human plasma protein transthyretin (TTR) is associated with several human disorders, including familial amyloidotic polyneuropathy (FAP) and senile systemic amyloidosis. Dissociation of TTR's native tetrameric assembly is the rate-limiting step in the conversion into amyloid, and this feature presents an avenue for intervention because binding of an appropriate ligand to the thyroxin hormone binding sites of TTR stabilizes the native tetrameric assembly and impairs conversion into amyloid. The desired features for an effective TTR stabilizer include high affinity for TTR, high selectivity in the presence of other proteins, no adverse side effects at the effective concentrations, and a long half-life in the body. In this study we show that the commonly used flame retardant tetrabromobisphenol A (TBBPA) efficiently stabilizes the tetrameric structure of TTR. The X-ray crystal structure shows TBBPA binding in the thyroxine binding pocket with bromines occupying two of the three halogen binding sites. Interestingly, TBBPA binds TTR with an extremely high selectivity in human plasma, and the effect is equal to the recently approved drug tafamidis and better than diflunisal, both of which have shown therapeutic effects against FAP. TBBPA consequently present an interesting scaffold for drug design. Its absorption, metabolism, and potential side-effects are discussed.
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Affiliation(s)
- Irina Iakovleva
- Department of Medical Biochemistry and Biophysics, Umeå University, Umeå, Sweden
| | - Afshan Begum
- Department of Chemistry, Umeå University, Umeå, Sweden
| | | | - Alexandra Wijsekera
- Department of Medical Biochemistry and Biophysics, Umeå University, Umeå, Sweden
| | - Lina Nilsson
- Department of Chemistry, Umeå University, Umeå, Sweden
| | - Jin Zhang
- Department of Chemistry, Umeå University, Umeå, Sweden
| | | | | | - Anders Olofsson
- Department of Medical Biochemistry and Biophysics, Umeå University, Umeå, Sweden
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Giaglis S, Stoikou M, Grimolizzi F, Subramanian BY, van Breda SV, Hoesli I, Lapaire O, Hasler P, Than NG, Hahn S. Neutrophil migration into the placenta: Good, bad or deadly? Cell Adh Migr 2016; 10:208-25. [PMID: 26933824 PMCID: PMC4853040 DOI: 10.1080/19336918.2016.1148866] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
Almost 2 decades have passed since the discovery that pregnancy is associated with a basal inflammatory state involving neutrophil activation, and that this is more overt in cases with preeclampsia, than in instances with sepsis. This pivotal observation paved the way for our report, made almost a decade ago, describing the first involvement of neutrophil extracellular traps (NETs) in a non-infectious human pathology, namely preeclampsia, where an abundance of these structures were detected directly in the placental intervillous space. Despite these remarkable findings, there remains a paucity of interest among reproductive biologists in further exploring the role or involvement of neutrophils in pregnancy and related pathologies. In this review we attempt to redress this deficit by highlighting novel recent findings including the discovery of a novel neutrophil subset in the decidua, the interaction of placental protein 13 (PP13) and neutrophils in modulating spiral artery modification, as well as the use of animal model systems to elucidate neutrophil function in implantation, gestation and parturition. These model systems have been particularly useful in identifying key components implicated in recurrent fetal loss, preeclampsia or new signaling molecules such as sphingolipids. Finally, the recent discovery that anti-phospolipid antibodies can trigger NETosis, supports our hypothesis that these structures may contribute to placental dysfunction in pertinent cases with recurrent fetal loss.
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Affiliation(s)
- Stavros Giaglis
- a Department of Biomedicine , University Hospital Basel , Basel , Switzerland.,b Department Rheumatology , Cantonal Hospital Aarau , Aarau , Switzerland
| | - Maria Stoikou
- a Department of Biomedicine , University Hospital Basel , Basel , Switzerland
| | - Franco Grimolizzi
- a Department of Biomedicine , University Hospital Basel , Basel , Switzerland.,c Polytechnic University Marche , Ancona , Italy
| | - Bibin Y Subramanian
- a Department of Biomedicine , University Hospital Basel , Basel , Switzerland
| | - Shane V van Breda
- a Department of Biomedicine , University Hospital Basel , Basel , Switzerland
| | - Irene Hoesli
- a Department of Biomedicine , University Hospital Basel , Basel , Switzerland
| | - Olav Lapaire
- d Department of Obstetrics , University Women's Hospital Basel , Basel , Switzerland
| | - Paul Hasler
- b Department Rheumatology , Cantonal Hospital Aarau , Aarau , Switzerland
| | - Nandor Gabor Than
- e Lendulet Reproduction Research Group, Institute of Enzymology , Research Center for Natural Sciences; Hungarian Academy of Sciences , Budapest , Hungary
| | - Sinuhe Hahn
- a Department of Biomedicine , University Hospital Basel , Basel , Switzerland
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