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Suzuki N, Ihira M, Enya Y, Yumi T, Izuru C, Rie I, Higashimoto Y, Hiroki M, Asaki T, Kaoru F, Kawamura Y, Yoshikawa T. Dynamics of salivary human herpesvirus-6 and -7 shedding in pregnant women. J Med Virol 2022; 94:3359-3367. [PMID: 35243652 DOI: 10.1002/jmv.27692] [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: 12/24/2021] [Revised: 02/09/2022] [Accepted: 02/28/2022] [Indexed: 11/09/2022]
Abstract
OBJECTIVES Reactivation of Betaherpesvirinae (Human herpesvirus 6A: HHV-6A, -6B, HHV-7) may be associated with mental illness and host fatigue. This study aimed to determine whether viral reactivation, measured by monitoring salivary viral DNA load, can be used to monitor depression in pregnant and postpartum women. METHODS Saliva samples were collected from 64 pregnant women at five-point of observation periods. The HHV-6 and HHV-7 specific qPCRs were carried out to measure viral DNA load. When HHV-6 DNA was detected in saliva, nested PCR was used to discriminate between HHV-6A and B. RESULTS In both viruses, a significant correlation was observed between detection frequency and viral DNA load in saliva. In the low-shedding group, HHV-6 DNA was significantly higher in the third trimester (P<0.0001), the time of delivery (P=0.0003), one month after birth (P=0.0023) compared to the first trimester, and HHV-7 was at the time of delivery (P=0.0277) and one month after birth (P=0.0235). Most of detected HHV-6 DNAs in saliva were HHV-6B. Both viral DNA loads were significantly lower (HHV-6:P=0.0101, HHV-7:P=0.0044) in the subjects with abnormal EPDS scores. CONCLUSIONS Detection rate and viral DNA load of both viruses in saliva increased after the third trimester. Salivary virus DNA shedding was significantly lower in subjects with an abnormal EPDS score. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Noriko Suzuki
- Faculty of Health Care and Nursing, Juntendo University, Tokyo, Japan
| | - Masaru Ihira
- Faculty of Clinical Engineering, Fujita Health University School of Health Sciences, Toyoake, Aichi, Japan
| | - Yasuko Enya
- Faculty of Clinical Engineering, Fujita Health University School of Health Sciences, Toyoake, Aichi, Japan
| | | | | | - Igarashi Rie
- Seibo international Catholic hospital, Tokyo, Japan
| | - Yuki Higashimoto
- Faculty of Medical Technology, Fujita Health University School of Health Sciences, Toyoake, Aichi, Japan
| | - Miura Hiroki
- Department of Pediatrics, Fujita Health University School of Medicine, Toyoake, Aichi, Japan
| | - Takanashi Asaki
- Faculty of Health Care and Nursing, Juntendo University, Tokyo, Japan
| | - Fujimoto Kaoru
- Department of Nursing Faculty of Health Science Technology, Bumkyo Gakuin University, Tokyo, Japan
| | - Yoshiki Kawamura
- Department of Pediatrics, Fujita Health University School of Medicine, Toyoake, Aichi, Japan
| | - Tetsushi Yoshikawa
- Department of Pediatrics, Fujita Health University School of Medicine, Toyoake, Aichi, Japan
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Shmeleva EV, Colucci F. Maternal natural killer cells at the intersection between reproduction and mucosal immunity. Mucosal Immunol 2021; 14:991-1005. [PMID: 33903735 PMCID: PMC8071844 DOI: 10.1038/s41385-020-00374-3] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Revised: 11/24/2020] [Accepted: 12/02/2020] [Indexed: 02/07/2023]
Abstract
Many maternal immune cells populate the decidua, which is the mucosal lining of the uterus transformed during pregnancy. Here, abundant natural killer (NK) cells and macrophages help the uterine vasculature adapt to fetal demands for gas and nutrients, thereby supporting fetal growth. Fetal trophoblast cells budding off the forming placenta and invading deep into maternal tissues come into contact with these and other immune cells. Besides their homeostatic functions, decidual NK cells can respond to pathogens during infection, but in doing so, they may become conflicted between destroying the invader and sustaining fetoplacental growth. We review how maternal NK cells balance their double duty both in the local microenvironment of the uterus and systemically, during toxoplasmosis, influenza, cytomegalovirus, malaria and other infections that threat pregnancy. We also discuss recent developments in the understanding of NK-cell responses to SARS-Cov-2 infection and the possible dangers of COVID-19 during pregnancy.
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Affiliation(s)
- Evgeniya V Shmeleva
- Department of Obstetrics & Gynaecology, University of Cambridge, National Institute for Health Research Cambridge Biomedical Research Centre, Cambridge, CB2 0SW, UK
- Centre for Trophoblast Research, University of Cambridge, Cambridge, UK
| | - Francesco Colucci
- Department of Obstetrics & Gynaecology, University of Cambridge, National Institute for Health Research Cambridge Biomedical Research Centre, Cambridge, CB2 0SW, UK.
- Centre for Trophoblast Research, University of Cambridge, Cambridge, UK.
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Evolution of antibody titres against Epstein-Barr virus and human herpesvirus 6A/B and expression of multiple sclerosis-associated retrovirus in the serum of pregnant multiple sclerosis patients. Sci Rep 2021; 11:8441. [PMID: 33875702 PMCID: PMC8055650 DOI: 10.1038/s41598-021-87941-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Accepted: 04/06/2021] [Indexed: 11/17/2022] Open
Abstract
Epstein–Barr virus (EBV), human herpesvirus 6A/B (HHV-6A/B) and multiple sclerosis (MS)-associated retrovirus (MSRV) have been described as possible MS triggers. We analysed antibody titres against EBV and HHV-6, and MSRV envelope (env) mRNA expression, in the serum of pregnant multiple sclerosis patients (P-MS) to study their possible link to the clinical activity of MS during pregnancy and postpartum and their possible role as relapse predictors. For that purpose, serum samples were collected from 71 pregnant women (50 pregnant MS and 21 pregnant healthy controls—P-HC) during pregnancy and postpartum. Relating to antibody titres, IgM antibody titres against HHV-6A/B were significantly higher in P-MS than in P-HC both in each pregnancy trimester and in the postpartum period. Moreover, IgM antibody titres against HHV-6A/B were higher in P-MS who suffered a relapse during the postpartum. Regarding MSRV env mRNA expression, the prevalence in the first trimester of pregnancy was significantly higher in P-MS who suffered relapses during pregnancy. Summing it up, high IgM antibody titres against HHV-6A/B and MSRV env mRNA expression during the first trimester of pregnancy could act as relapse predictors for the gestation/postpartum periods.
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Is the ZIKV Congenital Syndrome and Microcephaly Due to Syndemism with Latent Virus Coinfection? Viruses 2021; 13:v13040669. [PMID: 33924398 PMCID: PMC8069280 DOI: 10.3390/v13040669] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Revised: 04/02/2021] [Accepted: 04/10/2021] [Indexed: 01/04/2023] Open
Abstract
The emergence of the Zika virus (ZIKV) mirrors its evolutionary nature and, thus, its ability to grow in diversity or complexity (i.e., related to genome, host response, environment changes, tropism, and pathogenicity), leading to it recently joining the circle of closed congenital pathogens. The causal relation of ZIKV to microcephaly is still a much-debated issue. The identification of outbreak foci being in certain endemic urban areas characterized by a high-density population emphasizes that mixed infections might spearhead the recent appearance of a wide range of diseases that were initially attributed to ZIKV. Globally, such coinfections may have both positive and negative effects on viral replication, tropism, host response, and the viral genome. In other words, the possibility of coinfection may necessitate revisiting what is considered to be known regarding the pathogenesis and epidemiology of ZIKV diseases. ZIKV viral coinfections are already being reported with other arboviruses (e.g., chikungunya virus (CHIKV) and dengue virus (DENV)) as well as congenital pathogens (e.g., human immunodeficiency virus (HIV) and cytomegalovirus (HCMV)). However, descriptions of human latent viruses and their impacts on ZIKV disease outcomes in hosts are currently lacking. This review proposes to select some interesting human latent viruses (i.e., herpes simplex virus 2 (HSV-2), Epstein-Barr virus (EBV), human herpesvirus 6 (HHV-6), human parvovirus B19 (B19V), and human papillomavirus (HPV)), whose virological features and co-exposition with ZIKV may provide evidence of the syndemism process, shedding some light on the emergence of the ZIKV-induced global congenital syndrome in South America.
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5
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Komaroff AL, Rizzo R, Ecker JL. Human Herpesviruses 6A and 6B in Reproductive Diseases. Front Immunol 2021; 12:648945. [PMID: 33841432 PMCID: PMC8027340 DOI: 10.3389/fimmu.2021.648945] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Accepted: 03/09/2021] [Indexed: 11/13/2022] Open
Abstract
Human herpesviruses 6A (HHV-6A) and human herpesvirus 6B (HHV-6B)—collectively, HHV-6A/B—are recently-discovered but ancient human viruses. The vast majority of people acquire one or both viruses, typically very early in life, producing an ineradicable lifelong infection. The viruses have been linked to several neurological, pulmonary and hematological diseases. In early human history, the viruses on multiple occasions infected a germ cell, and integrated their DNA into a human chromosome. As a result, about 1% of humans are born with the full viral genome present in every cell, with uncertain consequences for health. HHV-6A may play a role in 43% of cases of primary unexplained infertility. Both the inherited and acquired viruses may occasionally trigger several of the factors that are important in the pathogenesis of preeclampsia. Transplacental infection occurs in 1-2% of pregnancies, with some evidence suggesting adverse health consequences for the child. While emerging knowledge about these viruses in reproductive diseases is not sufficient to suggest any changes in current practice, we write this review to indicate the need for further research that could prove practice-changing.
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Affiliation(s)
- Anthony L Komaroff
- Division of General Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, United States
| | - Roberta Rizzo
- Department of Chemical and Pharmaceutical Sciences, University of Ferrara, Ferrara, Italy
| | - Jeffrey L Ecker
- Department of Obstetrics, Gynecology and Reproductive Biology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, United States
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Kushch AA, Kisteneva LB, Klimova RR, Cheshik SG. [The role of herpesviruses in development of diseases of the urogenital tract and infertility in women]. Vopr Virusol 2021; 65:317-325. [PMID: 33533228 DOI: 10.36233/0507-4088-2020-65-6-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Accepted: 01/07/2021] [Indexed: 11/05/2022]
Abstract
This review presents the data on the spreading of all known human herpesviruses (НHVs) in female urogenital tract. According to the WHO almost 500 million people worldwide suffer from genital infection caused by НHVs. НHVs were detected in various inflammatory diseases of female upper and lower genital tract (vaginitis and cervicitis), in extrauterine pregnancy (in fallopian tubes), in infertility (cervical channel, endometrium and ovaries). Herpes simplex virus 1 (HSV‑1) was identified for the first time in oocytes after failed in vitro fertilization (IVF). НHVs produce negative effect on the entire reproductive process from conception to childbirth. It was established that HSV, cytomegalovirus (CMV) and human herpesvirus 6 (HHV-6) markedly increase the risk of spontaneous abortion, preterm birth and stillbirth. Intrauterine НHV infection is a major cause of congenital malformations. Data on humoral and cell immunity in genital herpesvirus infections (НHVI) are also reviewed. Intravaginal HSV‑2 infection changes cell composition of vaginal mucosa, i.e., together with cells mobilized from the blood, protective role is performed by resident memory T‑cells (TRM), natural killer cells (NK‑cells) and regulatory T‑cells (Treg) whose function consists in maintaining the balance of the activities of lymphocytes. Constant НHVI spreading is largely explained by transition of primary infection to potentially reactivating latent form, since latent virus is unavailable to immune recognition and medicines. The genome editing system CRISPR/Cas9 can recognize and modify not only active but also latent viruses. The promising pilot results with the use of this system offer the possibility of developing innovative technologies for НHV elimination and НHVI eradication.
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Affiliation(s)
- A A Kushch
- Ivanovsky Institute of Virology of FSBI «National Research Centre of Epidemiology and Microbiology named after honorary academician N.F. Gamaleya» of the Ministry of Health of Russia
| | - L B Kisteneva
- Ivanovsky Institute of Virology of FSBI «National Research Centre of Epidemiology and Microbiology named after honorary academician N.F. Gamaleya» of the Ministry of Health of Russia
| | - R R Klimova
- Ivanovsky Institute of Virology of FSBI «National Research Centre of Epidemiology and Microbiology named after honorary academician N.F. Gamaleya» of the Ministry of Health of Russia
| | - S G Cheshik
- Ivanovsky Institute of Virology of FSBI «National Research Centre of Epidemiology and Microbiology named after honorary academician N.F. Gamaleya» of the Ministry of Health of Russia
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Ding L, Mo X, Zhang L, Zhou F, Zhu C, Wang Y, Cai C, Liu Y, Wei F, Cai Q. High prevalence and correlates of human herpesvirus-6A in nevocytic nevus and seborrheic diseases: Implication from a pilot study of skin patient tissues in Shanghai. J Med Virol 2018; 90:1532-1540. [DOI: 10.1002/jmv.25217] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2018] [Accepted: 05/02/2018] [Indexed: 11/09/2022]
Affiliation(s)
- Ling Ding
- MOE & MOH Key Laboratory of Medical Molecular Virology, Department of Medical Microbiology and Parasitology; School of Basic Medical Sciences, Fudan University; Shanghai China
| | - Xiaohui Mo
- MOE & MOH Key Laboratory of Medical Molecular Virology, Department of Medical Microbiology and Parasitology; School of Basic Medical Sciences, Fudan University; Shanghai China
- Central Laboratory; Shanghai Dermatology Hospital; Shanghai China
| | - Liming Zhang
- Medical Laboratory; Nanchang Hospital of Integrative Traditional Chinese and Western Medicine; Nanchang China
| | - Feng Zhou
- MOE & MOH Key Laboratory of Medical Molecular Virology, Department of Medical Microbiology and Parasitology; School of Basic Medical Sciences, Fudan University; Shanghai China
- Baoji Health and Family Planning Bureau; Baoji Affiliated Hospital of Xi’an Medical University; Baoji Shaanxi China
| | - Caixia Zhu
- MOE & MOH Key Laboratory of Medical Molecular Virology, Department of Medical Microbiology and Parasitology; School of Basic Medical Sciences, Fudan University; Shanghai China
| | - Yuyan Wang
- MOE & MOH Key Laboratory of Medical Molecular Virology, Department of Medical Microbiology and Parasitology; School of Basic Medical Sciences, Fudan University; Shanghai China
| | - Cankun Cai
- MOE & MOH Key Laboratory of Medical Molecular Virology, Department of Medical Microbiology and Parasitology; School of Basic Medical Sciences, Fudan University; Shanghai China
| | - Yeqiang Liu
- Division of Pathology; Shanghai Dermatology Hospital; Shanghai China
| | - Fang Wei
- ShengYushou Center of Cell Biology and Immunology; School of Life Sciences and Biotechnology, Shanghai Jiao Tong University; Shanghai China
| | - Qiliang Cai
- MOE & MOH Key Laboratory of Medical Molecular Virology, Department of Medical Microbiology and Parasitology; School of Basic Medical Sciences, Fudan University; Shanghai China
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8
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Loh TY, Cohen PR. Pityriasis rosea in pregnancy: report of a spousal occurrence and craniosynostosis in the healthy newborn. Dermatol Pract Concept 2016; 6:39-46. [PMID: 27648382 PMCID: PMC5006551 DOI: 10.5826/dpc.0603a08] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2016] [Accepted: 05/01/2016] [Indexed: 10/31/2022] Open
Abstract
BACKGROUND Pityriasis rosea is a papulosquamous disease. It may occur during pregnancy; in this setting, it has occasionally been associated with adverse outcomes. PURPOSE A woman who developed pityriasis rosea at the beginning of her eighth week of gestation is described. The outcomes in newborns delivered by pregnant women who developed pityriasis rosea during gestation are summarized. METHOD A 28-year-old woman developed pityriasis rosea during her eighth week of pregnancy. Her husband had pityriasis rosea two months earlier. PubMed was searched for the following terms: conjugal, craniosynostosis, newborn, pityriasis, pregnancy, rosea, sagittal, spouse. The papers were reviewed and the references cited were evaluated. RESULTS Our patient delivered a healthy male infant after 41 weeks of gestation. He had normal weight, height, and Apgar scores. Isolated sagittal craniosynostosis was diagnosed and was successfully treated at nine weeks after birth without complications. CONCLUSION Several retrospective studies have investigated the possibility of adverse outcomes in infants born to women who developed pityriasis rosea during pregnancy, such as stillbirth, low gestational weight, hypotonia, and premature delivery. However, there are also reports of healthy newborns in women who have had pityriasis rosea during gestation. Our patient carried the fetus one week post-term and delivered a healthy boy via C-section; isolated sagittal craniosynostosis was later diagnosed and successfully repaired. The occurrence of craniosynostosis in a woman who developed pityriasis rosea during her first trimester of pregnancy may be two coincidental events.
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Affiliation(s)
- Tiffany Y Loh
- School of Medicine, University of California San Diego, La Jolla, CA, USA
| | - Philip R Cohen
- Department of Dermatology, University of California San Diego, La Jolla, CA, USA
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9
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Marci R, Gentili V, Bortolotti D, Lo Monte G, Caselli E, Bolzani S, Rotola A, Di Luca D, Rizzo R. Presence of HHV-6A in Endometrial Epithelial Cells from Women with Primary Unexplained Infertility. PLoS One 2016; 11:e0158304. [PMID: 27367597 PMCID: PMC4930213 DOI: 10.1371/journal.pone.0158304] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2016] [Accepted: 06/13/2016] [Indexed: 02/03/2023] Open
Abstract
To elucidate the roles of human herpesvirus (HHV)-6 primary unexplained infertile women, a prospective randomized study was conducted on a cohort of primary unexplained infertile women and a cohort of control women, with at least one successful pregnancy. HHV-6 DNA was analyzed and the percentage and immune-phenotype of resident endometrial Natural Killer (NK) cells, as the first line of defense towards viral infections, was evaluated in endometrial biopsies. Cytokine levels in uterine flushing samples were analyzed. HHV-6A DNA was found in 43% of endometrial biopsies from primary unexplained infertile women, but not in control women. On the contrary, HHV-6B DNA was absent in endometrial biopsies, but present in PBMCs of both cohorts. Endometrial NK cells presented a different distribution in infertile women with HHV6-A infection compared with infertile women without HHV6-A infection. Notably, we observed a lower percentage of endometrial specific CD56brightCD16- NK cells. We observed an enhanced HHV-6A-specific endometrial NK cell response in HHV-6A positive infertile women, with a marked increase in the number of endometrial NK cells activating towards HHV-6A infected cells. The analysis of uterine flushing samples showed an increase in IL-10 levels and a decrease of IFN-gamma concentrations in infertile women with HHV6-A infection. Our study indicates, for the first time, that HHV-6A infection might be an important factor in female unexplained infertility development, with a possible role in modifying endometrial NK cells immune profile and ability to sustain a successful pregnancy.
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Affiliation(s)
- Roberto Marci
- Department of Morphology, Surgery and Experimental Medicine, Section of Gynecology and Obstetrics, University of Ferrara, Ferrara, Italy
- School of Medicine, University of Geneve, Geneve, Switzerland
| | - Valentina Gentili
- Department of Medical Sciences, Section of Microbiology, University of Ferrara, Ferrara, Italy
| | - Daria Bortolotti
- Department of Medical Sciences, Section of Microbiology, University of Ferrara, Ferrara, Italy
| | | | - Elisabetta Caselli
- Department of Medical Sciences, Section of Microbiology, University of Ferrara, Ferrara, Italy
| | - Silvia Bolzani
- Department of Medical Sciences, Section of Microbiology, University of Ferrara, Ferrara, Italy
| | - Antonella Rotola
- Department of Medical Sciences, Section of Microbiology, University of Ferrara, Ferrara, Italy
| | - Dario Di Luca
- Department of Medical Sciences, Section of Microbiology, University of Ferrara, Ferrara, Italy
| | - Roberta Rizzo
- Department of Medical Sciences, Section of Microbiology, University of Ferrara, Ferrara, Italy
- * E-mail:
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Drago F, Broccolo F, Javor S, Drago F, Rebora A, Parodi A. Evidence of human herpesvirus-6 and -7 reactivation in miscarrying women with pityriasis rosea. J Am Acad Dermatol 2014; 71:198-9. [PMID: 24947696 DOI: 10.1016/j.jaad.2014.02.023] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2013] [Revised: 02/05/2014] [Accepted: 02/16/2014] [Indexed: 11/30/2022]
Affiliation(s)
- Francesco Drago
- Department of Endocrinological and Metabolic Sciences, Section of Dermatology, University of Genoa, Italy
| | | | - Sanja Javor
- Department of Endocrinological and Metabolic Sciences, Section of Dermatology, University of Genoa, Italy.
| | - Francesca Drago
- Department of Endocrinological and Metabolic Sciences, Section of Dermatology, University of Genoa, Italy
| | - Alfredo Rebora
- Department of Endocrinological and Metabolic Sciences, Section of Dermatology, University of Genoa, Italy
| | - Aurora Parodi
- Department of Endocrinological and Metabolic Sciences, Section of Dermatology, University of Genoa, Italy
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11
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Amirian ES, Adler-Storthz K, Scheurer ME. Associations between human herpesvirus-6, human papillomavirus and cervical cancer. Cancer Lett 2013; 336:18-23. [PMID: 23624298 DOI: 10.1016/j.canlet.2013.04.023] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2013] [Revised: 04/17/2013] [Accepted: 04/17/2013] [Indexed: 01/29/2023]
Abstract
Cervical cancer (CxCa) is the second most common cancer among women globally. Human papillomavirus (HPV) infection is thought to be a necessary, but not sufficient, causal factor in CxCa development. Why some women are able to clear HPV infection with no adverse effects, whereas others develop cancer, remains unclear. HHV-6 has demonstrated transformative abilities and has been shown to be present in the genital tract. However, based on the current evidence, we cannot conclude that HHV-6 is a co-factor in HPV-associated carcinogenesis. Nonetheless, future research is warranted because of several crucial gaps in the literature.
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Affiliation(s)
- E Susan Amirian
- Dan L Duncan Cancer Center and Department of Pediatrics, Baylor College of Medicine, 1 Baylor Plaza MSBCM305, Houston, TX 77030, USA
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12
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Heterogeneous pathways of maternal-fetal transmission of human viruses (review). Pathol Oncol Res 2010; 15:451-65. [PMID: 19350418 DOI: 10.1007/s12253-009-9166-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/27/2009] [Accepted: 03/24/2009] [Indexed: 12/18/2022]
Abstract
Several viruses can pass the maternal-fetal barrier, and cause diseases of the fetus or the newborn. Recently, however, it became obvious, that viruses may invade fetal cells and organs through different routes without acute consequences. Spermatozoa, seminal fluid and lymphocytes in the sperm may transfer viruses into the human zygotes. Viruses were shown to be integrated into human chromosomes and transferred into fetal tissues. The regular maternal-fetal transport of maternal cells has also been discovered. This transport might implicate that lymphotropic viruses can be released into the fetal organs following cellular invasion. It has been shown that many viruses may replicate in human trophoblasts and syncytiotrophoblast cells thus passing the barrier of the maternal-fetal interface. The transport of viral immunocomplexes had also been suggested, and the possibility has been put forward that even anti-idiotypes mimicking viral epitopes might be transferred by natural mechanisms into the fetal plasma, in spite of the selective mechanisms of apical to basolateral transcytosis in syncytiotrophoblast and basolateral to apical transcytosis in fetal capillary endothelium. The mechanisms of maternal-fetal transcytosis seem to be different of those observed in differentiated cells and tissue cultures. Membrane fusion and lipid rafts of high cholesterol content are probably the main requirements of fetal transcytosis. The long term presence of viruses in fetal tissues and their interactions with the fetal immune system might result in post partum consequences as far as increased risk of the development of malignancies and chronic pathologic conditions are discussed.
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13
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Breuer J. Herpes zoster: new insights provide an important wake-up call for management of nosocomial transmission. J Infect Dis 2008; 197:635-7. [PMID: 18260760 DOI: 10.1086/527421] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
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Caserta MT, Hall CB, Schnabel K, Lofthus G, McDermott MP. Human Herpesvirus (HHV)-6 and HHV-7 Infections in Pregnant Women. J Infect Dis 2007. [DOI: 10.1086/10.1086/522430] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
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15
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Lisco A, Barbierato M, Fiore JR, Gasperini P, Favia A, Volpe A, Chironna M, Pastore G, Chieco-Bianchi L, Calabrò ML. Pregnancy and human herpesvirus 8 reactivation in human immunodeficiency virus type 1-infected women. J Clin Microbiol 2006; 44:3863-71. [PMID: 16943357 PMCID: PMC1698349 DOI: 10.1128/jcm.00791-06] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
To investigate the impact of pregnancy on human herpesvirus 8 (HHV-8) reactivation in human immunodeficiency virus type 1 (HIV-1)-infected women, the HHV-8 DNA presence and load were analyzed in peripheral blood mononuclear cells (PBMCs) and cervicovaginal secretions (CVSs) from 15 pregnant women coinfected with HIV-1 and HHV-8. HHV-8 detection was analyzed in relation to anti-HHV-8 antibodies and HIV-1-related parameters. Nucleotide sequence analysis of an ORFK1 hypervariable region of the HHV-8 strains was performed. HHV-8 was detected in maternal PBMCs (5/15 women) from the second trimester and in CVSs (5/15 women) mainly from the third trimester. The HHV-8 load significantly increased late in pregnancy in both maternal compartments and was associated with a significant increase in HIV-1 shedding in the genital tract. Antilytic antibodies were significantly more common in HHV-8 DNA-positive women. An elevated HHV-8 load was found in the PBMCs of an infant born to a mother with large amounts of HHV-8 in both compartments at delivery. Different ORFK1 subtypes were found in maternal samples, whereas the same subtype was identified in the mother-child pair. These data suggest that pregnancy may induce HHV-8 replication in HIV-1-infected women. An augmented HHV-8 load may, in turn, influence mother-to-child transmission, since one of the HIV-1-infected mothers with HHV-8 reactivation transmitted her ORFK1 subtype to the infant, who showed a high level of HHV-8 viremia indicative of a primary infection. This finding documents for the first time the perinatal transmission of a specific HHV-8 subtype. Vertical transmission may thus play a role in HHV-8 spread also in areas of subendemicity among HIV-1-infected women.
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Affiliation(s)
- Andrea Lisco
- Department of Oncology and Surgical Sciences, Oncology Section, University of Padova, Padua, Italy
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16
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Abstract
OBJECTIVE To examine whether: (1) congenital human herpesvirus 6 (HHV6) and human herpesvirus 7 (HHV7) infections occur; whether (2) their manifestations differ from postnatal infections; and whether (3) HHV6 and HHV7 infections differ despite their close relatedness. STUDY DESIGN HHV6 and HHV7 infections acquired congenitally and postnatally in normal children were compared using viral isolation, serology, reverse-transcription polymerase chain reaction (RT-PCR) and nested DNA-PCR for HHV6 variant A (HHV6A), HHV6 variant B (HHV6B), and HHV7. RESULTS HHV6 DNA was detected in 57 (1%) of 5638 cord bloods. HHV7 DNA, however, was not detected in 2129 cord bloods. Congenital HHV6 infections differed from postnatal infections, which were acute febrile illnesses. Congenital infections were asymptomatic, 10% demonstrated reactivation at birth, and HHV6 DNA persistence in follow-up blood samples was significantly more frequent. One-third of congenital infections were HHV6A, whereas all postnatal infections were HHV6B. CONCLUSIONS Congenital HHV6 infections occurred in 1% of births, similar to the rate for cytomegalovirus infection. Congenital infections were clinically and virologically distinct from postnatal infections. Congenital HHV7 infections, however, were not detected, suggesting considerable differences in transmission and pathogenesis in these closely related beta-herpesviruses.
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Yoshikawa T, Suzuki K, Umemura K, Akimoto S, Miyake F, Usui C, Fujita A, Suga S, Asano Y. Atypical clinical features of a human herpesvirus-6 infection in a neonate. J Med Virol 2004; 74:463-6. [PMID: 15368515 DOI: 10.1002/jmv.20199] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
A case of neonatal human herpesvirus 6 (HHV-6) B infection is presented. Although HHV-6 B was isolated from peripheral blood at the onset of the illness, a significant increase in viral antibody titers was not observed. The patient had a slight fever with generalized maculopapular skin rash and an increased number of atypical lymphocytes, which is quite different from the typical clinical features of exanthem subitum.
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Affiliation(s)
- Tetsushi Yoshikawa
- Department of Pediatrics, Fujita Health University School of Medicine, Toyoake, Aichi, Japan.
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