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Guan Z, Worth B, Umstead TM, Amatya S, Booth J, Chroneos ZC. Disruption of the SP-A/SP-R210 L (MYO18Aα) pathway prolongs gestation and reduces fetal survival during lipopolysaccharide-induced parturition in late gestation. Am J Physiol Lung Cell Mol Physiol 2024; 326:L508-L513. [PMID: 38349123 DOI: 10.1152/ajplung.00383.2023] [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: 12/04/2023] [Revised: 01/25/2024] [Accepted: 02/05/2024] [Indexed: 04/07/2024] Open
Abstract
Prolonged labor can lead to infection, fetal distress, asphyxia, and life-threatening harm to both the mother and the baby. Surfactant protein A (SP-A) was shown to contribute to the maintenance of pregnancy and timing of term labor. SP-A modulates the stoichiometric expression of the SP-R210L and SP-R210S isoforms of the SP-R210 receptor on alveolar macrophages (AMs). Lack of SP-R210L dysregulates macrophage inflammatory responses. We asked whether SP-A alters normal and inflammation-induced parturition through SP-R210 using SP-A- and SP-R210L-deficient mice. Labor and delivery of time-pregnant mice were monitored in real time using a time-lapse infrared camera. Intrauterine injection with either vehicle or Escherichia coli lipopolysaccharide (LPS) on embryonic (E) day 18.5 post coitus was used to assess the effect of gene disruption in chorioamnionitis-induced labor. We report that either lack of SP-A or disruption of SP-R210L delays parturition by 0.40 and 0.55 days compared with controls, respectively. LPS induced labor at 0.60, 1.01, 0.40, 1.00, and 1.31 days earlier than PBS controls in wild type (WT), SP-A-deficient, littermate controls, heterozygous, and homozygous SP-R210L-deficient mice, respectively. Lack of SP-A reduced litter size in PBS-treated mice, whereas the total number of pups delivered was similar in all LPS-treated mice. The number of live pups, however, was significantly reduced by 50%-70% in SP-A and SP-R210L-deficient mice compared with controls. Differences in gestational length were not associated with intrauterine growth restriction. The present findings support the novel concept that the SP-A/SP-R210 pathway modulates timely labor and delivery and supports fetal lung barrier integrity during fetal-to-neonatal transition in term pregnancy.NEW & NOTEWORTHY To our knowledge, this study is the first to report that SP-A prevents delay of labor and inflammation-induced stillbirth through the receptor SP-R210L.
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Affiliation(s)
- Zhiwei Guan
- Division of Neonatal-Perinatal Medicine, Pulmonary Immunology and Physiology Laboratory, Department of Pediatrics, Pennsylvania State University College of Medicine, Hershey, Pennsylvania, United States
| | - Brandon Worth
- Division of Neonatal-Perinatal Medicine, Pulmonary Immunology and Physiology Laboratory, Department of Pediatrics, Pennsylvania State University College of Medicine, Hershey, Pennsylvania, United States
| | - Todd M Umstead
- Division of Neonatal-Perinatal Medicine, Pulmonary Immunology and Physiology Laboratory, Department of Pediatrics, Pennsylvania State University College of Medicine, Hershey, Pennsylvania, United States
| | - Shaili Amatya
- Division of Neonatal-Perinatal Medicine, Pulmonary Immunology and Physiology Laboratory, Department of Pediatrics, Pennsylvania State University College of Medicine, Hershey, Pennsylvania, United States
| | - Jennifer Booth
- Department of Comparative Medicine, Pennsylvania State University College of Medicine, Hershey, Pennsylvania, United States
| | - Zissis C Chroneos
- Division of Neonatal-Perinatal Medicine, Pulmonary Immunology and Physiology Laboratory, Department of Pediatrics, Pennsylvania State University College of Medicine, Hershey, Pennsylvania, United States
- Department of Microbiology and Immunology, Pennsylvania State University College of Medicine, Hershey, Pennsylvania, United States
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2
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Kyathanahalli C, Snedden M, Hirsch E. Is human labor at term an inflammatory condition?†. Biol Reprod 2023; 108:23-40. [PMID: 36173900 DOI: 10.1093/biolre/ioac182] [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: 05/11/2022] [Revised: 09/16/2022] [Accepted: 09/22/2022] [Indexed: 01/20/2023] Open
Abstract
Parturition at term in normal pregnancy follows a predictable sequence of events. There is some evidence that a state of inflammation prevails in the reproductive tissues during labor at term, but it is uncertain whether this phenomenon is the initiating signal for parturition. The absence of a clear temporal sequence of inflammatory events prior to labor casts doubt on the concept that normal human labor at term is primarily the result of an inflammatory cascade. This review examines evidence linking parturition and inflammation in order to address whether inflammation is a cause of labor, a consequence of labor, or a separate but related phenomenon. Finally, we identify and suggest ways to reconcile inconsistencies regarding definitions of labor onset in published research, which may contribute to the variability in conclusions regarding the genesis and maintenance of parturition. A more thorough understanding of the processes underlying normal parturition at term may lead to novel insights regarding abnormal labor, including spontaneous preterm labor, preterm premature rupture of the fetal membranes, and dysfunctional labor, and the role of inflammation in each.
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Affiliation(s)
- Chandrashekara Kyathanahalli
- Department of Obstetrics and Gynecology, NorthShore University HealthSystem, Evanston, Illinois, USA.,Department of Obstetrics and Gynecology, Pritzker School of Medicine, University of Chicago, Chicago, Illinois, USA
| | - Madeline Snedden
- Department of Obstetrics and Gynecology, NorthShore University HealthSystem, Evanston, Illinois, USA
| | - Emmet Hirsch
- Department of Obstetrics and Gynecology, NorthShore University HealthSystem, Evanston, Illinois, USA.,Department of Obstetrics and Gynecology, Pritzker School of Medicine, University of Chicago, Chicago, Illinois, USA
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3
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Riva F, Filipe J, Pavlovic R, Luciano AM, Dall'Ara P, Arioli F, Pecile A, Groppetti D. Canine amniotic fluid at birth: From a discarded sample to a potential diagnostic of neonatal maturity. Anim Reprod Sci 2023; 248:107184. [PMID: 36587591 DOI: 10.1016/j.anireprosci.2022.107184] [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: 10/04/2022] [Revised: 12/17/2022] [Accepted: 12/22/2022] [Indexed: 12/29/2022]
Abstract
The definition of new reliable markers for neonatal maturity evaluation is crucial in canine clinical practice. Concerns about the safety of amniotic sampling in pregnant dogs have prevented its collection for diagnostic purposes. Moreover, amniotic fluid had been considered waste material until the latest studies reported amniocentesis as a reliable and safe procedure, even in the canine species. In our study, amniotic fluid (n = 63) collected at birth from ten dogs undergoing elective Caesarean sections at term was analysed to discover new potential indices of canine neonatal maturity. Based on gestational age, mothers and puppies were divided into two groups: the early group (≤65 days from luteinizing hormone (LH) surge, n = 5) and the late group (>65 days from LH surge, n = 5). Amniotic parameters of the lightest and heaviest puppy in individual/each litter, with a birth weight difference of at least 20% among littermates, were also compared. In particular, the content of lecithin, sphingomyelin, surfactant protein A (SP-A), cortisol, and pentraxin 3 (PTX3) in amniotic fluid, which is considered predictive of foetal development in humans, were investigated. Maternal serum SP-A and cortisol were also measured simultaneously. All amniotic parameters were detectable in canine amniotic fluid. Interestingly, the concentrations of different amniotic parameters correlated with each other. Lecithin was positively correlated with sphingomyelin (p < 0.0001), maternal SP-A (p < 0.0005), and the ratio of amniotic and maternal cortisol (p < 0.004). Amniotic SP-A was inversely correlated to maternal SP-A (p < 0.05), lecithin (p < 0.005), and lecithin-sphingomyelin ratio (p < 0.05). A positive correlation was also recorded between amniotic and maternal cortisol (p < 0.008). Considering that all puppies were born alive and mature, these data could provide a potential range of expected amniotic values in full-term new-born dogs. Furthermore, since gestational age was positively correlated with both maternal and amniotic cortisol (p < 0.0001) and amniotic PTX3 (p < 0.05), amniotic fluid seems to be an attractive, innovative, and minimally invasive matrix with potential diagnostic and prognostic utility for the investigation of canine maturity.
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Affiliation(s)
- Federica Riva
- Department of Veterinary Medicine and Animal Sciences, Università degli Studi di Milano, via dell'Università, 6 - 26900 Lodi, Italy
| | - Joel Filipe
- Department of Veterinary Medicine and Animal Sciences, Università degli Studi di Milano, via dell'Università, 6 - 26900 Lodi, Italy
| | - Radmila Pavlovic
- Department of Veterinary Medicine and Animal Sciences, Università degli Studi di Milano, via dell'Università, 6 - 26900 Lodi, Italy
| | - Alberto Maria Luciano
- Department of Veterinary Medicine and Animal Sciences, Università degli Studi di Milano, via dell'Università, 6 - 26900 Lodi, Italy.
| | - Paola Dall'Ara
- Department of Veterinary Medicine and Animal Sciences, Università degli Studi di Milano, via dell'Università, 6 - 26900 Lodi, Italy
| | - Francesco Arioli
- Department of Veterinary Medicine and Animal Sciences, Università degli Studi di Milano, via dell'Università, 6 - 26900 Lodi, Italy
| | - Alessandro Pecile
- Department of Veterinary Medicine and Animal Sciences, Università degli Studi di Milano, via dell'Università, 6 - 26900 Lodi, Italy
| | - Debora Groppetti
- Department of Veterinary Medicine and Animal Sciences, Università degli Studi di Milano, via dell'Università, 6 - 26900 Lodi, Italy
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Wu H, Xiong H, Huang X, Zhou Q, Hu D, Qi K, Liu H. Lung infection of avian pathogenic Escherichia coli co-upregulates the expression of cSP-A and cLL in chickens. Res Vet Sci 2022; 152:99-106. [PMID: 35939885 DOI: 10.1016/j.rvsc.2022.07.023] [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: 01/20/2022] [Revised: 06/22/2022] [Accepted: 07/29/2022] [Indexed: 11/25/2022]
Abstract
The host innate defense-pathogen interaction in the lung has always been a topic of concern. The respiratory tract is a common entry route for Avian pathogenic Escherichia coli (APEC). Chicken surfactant protein A (cSP-A) and chicken lung lectin (cLL) can bind to the carbohydrate moieties of various microorganisms. Despite their detection in chickens, their role in the innate immune response is largely unknown. This study aimed to examine whether the expression levels of cSP-A and cLL in the chicken respiratory system were affected by APEC infection. A lung colonization model was established in vivo using 5-day-old specific-pathogen-free chickens infected intratracheally with APEC. The chickens were euthanized 12 h post-infection (hpi) and 1-3 days post-infection (dpi) to detect various indicators. The results of quantitative reverse transcription-polymerase chain reaction and fluorescence multiplex immunohistochemical staining showed that the mRNA and protein expression levels of cSP-A and cLL in the lung and trachea were significantly co-upregulated at 2dpi.Transcriptome RNA-sequencing analysis indicated that the inoculation with APEC AE17 at 2 dpi resulted in differential gene expression of approximately 810 genes compared with control birds, but only a few genes were expressed with astatistically significant ≧2-fold difference. cLL and cSP-A were among the significantly upregulated genes involved in innate immunity. These findings indicated that cSP-A and cLL might play an important role in lung innate host defense against APEC infection at the early stage.
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Affiliation(s)
- Hanwen Wu
- Anhui Province Key Laboratory of Veterinary Pathobiology and Disease Control, Anhui Agricultural University, Hefei, Anhui, China
| | - Haifeng Xiong
- Anhui Province Key Laboratory of Veterinary Pathobiology and Disease Control, Anhui Agricultural University, Hefei, Anhui, China
| | - Xueting Huang
- Anhui Province Key Laboratory of Veterinary Pathobiology and Disease Control, Anhui Agricultural University, Hefei, Anhui, China
| | - Qian Zhou
- Anhui Province Key Laboratory of Veterinary Pathobiology and Disease Control, Anhui Agricultural University, Hefei, Anhui, China
| | - Dongmei Hu
- Anhui Province Key Laboratory of Veterinary Pathobiology and Disease Control, Anhui Agricultural University, Hefei, Anhui, China
| | - Kezong Qi
- Anhui Province Key Laboratory of Veterinary Pathobiology and Disease Control, Anhui Agricultural University, Hefei, Anhui, China
| | - Hongmei Liu
- Anhui Province Key Laboratory of Veterinary Pathobiology and Disease Control, Anhui Agricultural University, Hefei, Anhui, China.
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5
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Wang Y, Wang X, Zhu M, Ge L, Liu X, Su K, Chen Z, Zhao W. The Interplay Between Cervicovaginal Microbial Dysbiosis and Cervicovaginal Immunity. Front Immunol 2022; 13:857299. [PMID: 35359942 PMCID: PMC8960256 DOI: 10.3389/fimmu.2022.857299] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Accepted: 02/21/2022] [Indexed: 12/02/2022] Open
Abstract
The cervicovaginal microbiota plays a key role in the health and reproductive outcomes of women. In reality epidemiological studies have demonstrated that there is an association between the structure of cervicovaginal microbiota and reproductive health, although key mechanistic questions regarding these effects remain unanswered and understanding the interplay between the immune system and the structure of the cervicovaginal microbiota. Here, we review existing literature relating to the potential mechanisms underlying the interaction between vaginal microbes and the immune system; we also describe the composition and function of the microbiome and explain the mechanisms underlying the interactions between these microbial communities and various aspects of the immune system. Finally, we also discuss the diseases that are caused by disorders of the reproductive tract and how the immune system is involved. Finally, based on the data presented in this review, the future perspectives in research directions and therapeutic opportunities are explored.
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Affiliation(s)
- Ya Wang
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of University of Science and Technology of China, Hefei, China
| | - Xiaoli Wang
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of University of Science and Technology of China, Hefei, China
| | - Meiling Zhu
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of University of Science and Technology of China, Hefei, China
| | - Li Ge
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of University of Science and Technology of China, Hefei, China
| | - Xiaochen Liu
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of University of Science and Technology of China, Hefei, China
| | - Kaikai Su
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of University of Science and Technology of China, Hefei, China
| | - Zhengzheng Chen
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of University of Science and Technology of China, Hefei, China
| | - Weidong Zhao
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of University of Science and Technology of China, Hefei, China
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6
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ARAKI M, OHTAKI T, KIMURA J, HOBO S, TAYA K, TSUNODA N, TANIYAMA H, TSUMAGARI S, NAMBO Y. Presence of surfactant proteins in the uteri and placentae of pregnant mares. J Vet Med Sci 2021; 83:1167-1172. [PMID: 34135243 PMCID: PMC8349814 DOI: 10.1292/jvms.20-0174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Accepted: 05/18/2021] [Indexed: 11/22/2022] Open
Abstract
Immunohistochemical investigations of the expression of surfactant protein A (SP-A) and surfactant protein D (SP-D) in the uterine and placental tissues of 13 pregnant mares were performed using anti-horse monoclonal primary antibodies. Strong positive reactions for both SP-A and SP-D were observed in the trophoblasts in the microcotyledons of the placentae at 182 to 314 days of gestation; in uterine glandular epithelial cells, faint-to-weak reactions were observed during gestation. This study describes, for the first time, the changes in the SP-A and SP-D expression levels in the endometrium of mares during gestation; the SP-A and SP-D expression levels increased after the second trimester of gestation.
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Affiliation(s)
| | - Tadatoshi OHTAKI
- Department of Veterinary Medicine, College of Bioresource Sciences, Nihon University, Fujisawa, Kanagawa 252-0880, Japan
| | - Junpei KIMURA
- College of Veterinary Medicine, Seoul National University, Seoul 151-742, Korea
| | - Seiji HOBO
- Joint Faculty of Veterinary Medicine, Kagoshima University, Kagoshima, Kagoshima 890-0065, Japan
| | - Kazuyoshi TAYA
- Laboratory of Veterinary Physiology, Cooperative Department of Veterinary Medicine, Faculty of Agriculture, Tokyo University of
Agriculture and Technology, Fuchu, Tokyo 183-8509, Japan
- Shadai Corporation, 275 Hayakitagenbu, Abira-cho, Yufutsu-gun, Hokkaido 059-1432, Japan
| | - Nobuo TSUNODA
- Shadai Corporation, 275 Hayakitagenbu, Abira-cho, Yufutsu-gun, Hokkaido 059-1432, Japan
| | | | - Shigehisa TSUMAGARI
- Department of Veterinary Medicine, College of Bioresource Sciences, Nihon University, Fujisawa, Kanagawa 252-0880, Japan
| | - Yasuo NAMBO
- Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Hokkaido 080-8555, Japan
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7
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Girardi G, Lingo JJ, Fleming SD, Regal JF. Essential Role of Complement in Pregnancy: From Implantation to Parturition and Beyond. Front Immunol 2020; 11:1681. [PMID: 32849586 PMCID: PMC7411130 DOI: 10.3389/fimmu.2020.01681] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2020] [Accepted: 06/23/2020] [Indexed: 12/12/2022] Open
Abstract
The complement cascade was identified over 100 years ago, yet investigation of its role in pregnancy remains an area of intense research. Complement inhibitors at the maternal-fetal interface prevent inappropriate complement activation to protect the fetus. However, this versatile proteolytic cascade also favorably influences numerous stages of pregnancy, including implantation, fetal development, and labor. Inappropriate complement activation in pregnancy can have adverse lifelong sequelae for both mother and child. This review summarizes the current understanding of complement activation during all stages of pregnancy. In addition, consequences of complement dysregulation during adverse pregnancy outcomes from miscarriage, preeclampsia, and pre-term birth are examined. Finally, future research directions into complement activation during pregnancy are considered.
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Affiliation(s)
- Guillermina Girardi
- Department of Basic Medical Sciences, College of Medicine, Member of QU Health, Qatar University, Doha, Qatar
| | - Joshua J Lingo
- Division of Biology, Kansas State University, Manhattan, KS, United States
| | - Sherry D Fleming
- Division of Biology, Kansas State University, Manhattan, KS, United States
| | - Jean F Regal
- Department of Biomedical Sciences, University of Minnesota Medical School, Duluth, MN, United States
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8
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Murugaiah V, Agostinis C, Varghese PM, Belmonte B, Vieni S, Alaql FA, Alrokayan SH, Khan HA, Kaur A, Roberts T, Madan T, Bulla R, Kishore U. Hyaluronic Acid Present in the Tumor Microenvironment Can Negate the Pro-apototic Effect of a Recombinant Fragment of Human Surfactant Protein D on Breast Cancer Cells. Front Immunol 2020; 11:1171. [PMID: 32733438 PMCID: PMC7360846 DOI: 10.3389/fimmu.2020.01171] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Accepted: 05/12/2020] [Indexed: 02/05/2023] Open
Abstract
Human surfactant protein D (SP-D) belongs to the family of collectins that is composed of a characteristic amino-terminal collagenous region and a carboxy-terminal C-type lectin domain. Being present at the mucosal surfaces, SP-D acts as a potent innate immune molecule and offers protection against non-self and altered self, such as pathogens, allergens, and tumor. Here, we examined the effect of a recombinant fragment of human SP-D (rfhSP-D) on a range of breast cancer lines. Breast cancer has four molecular subtypes characterized by varied expressions of estrogen (ER), progesterone (PR), and epidermal growth factor (EGF) receptors (HER2). The cell viability of HER2-overexpressing (SKBR3) and triple-positive (BT474) breast cancer cell lines [but not of a triple-negative cell line (BT20)] was reduced following rfhSP-D treatment at 24 h. Upregulation of p21/p27 cell cycle inhibitors and p53 phosphorylation (Ser15) in rfhSP-D-treated BT474 and SKBR3 cell lines signified G2/M cell cycle arrest. Cleaved caspases 9 and 3 were detected in rfhSP-D-treated BT474 and SKBR3 cells, suggesting an involvement of the intrinsic apoptosis pathway. However, rfhSP-D-induced apoptosis was nullified in the presence of hyaluronic acid (HA) whose increased level in breast tumor microenvironment is associated with malignant tumor progression and invasion. rfhSP-D bound to solid-phase HA and promoted tumor cell proliferation. rfhSP-D-treated SKBR3 cells in the presence of HA showed decreased transcriptional levels of p53 when compared to cells treated with rfhSP-D only. Thus, HA appears to negate the anti-tumorigenic properties of rfhSP-D against HER2-overexpressing and triple-positive breast cancer cells.
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Affiliation(s)
- Valarmathy Murugaiah
- Biosciences, College of Health and Life Sciences, Brunel University London, Uxbridge, United Kingdom
| | - Chiara Agostinis
- Institute for Maternal and Child Health, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Burlo Garofolo, Trieste, Italy
| | - Praveen M. Varghese
- Biosciences, College of Health and Life Sciences, Brunel University London, Uxbridge, United Kingdom
- School of Biosciences and Technology, Vellore Institute of Technology, Vellore, India
| | - Beatrice Belmonte
- Tumor Immunology Unit, Human Pathology Section, Department of Health Sciences, University of Palermo, Palermo, Italy
| | - Salvatore Vieni
- Division of General and Oncological Surgery, Department of Surgical, Oncological and Oral Sciences, University of Palermo, Palermo, Italy
| | - Fanan A. Alaql
- Biosciences, College of Health and Life Sciences, Brunel University London, Uxbridge, United Kingdom
| | - Salman H. Alrokayan
- Department of Biochemistry, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Haseeb A. Khan
- Department of Biochemistry, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Anuvinder Kaur
- Biosciences, College of Health and Life Sciences, Brunel University London, Uxbridge, United Kingdom
| | - Terry Roberts
- Biosciences, College of Health and Life Sciences, Brunel University London, Uxbridge, United Kingdom
| | - Taruna Madan
- Department of Innate Immunity, ICMR—National Institute for Research in Reproductive Health, Mumbai, India
| | - Roberta Bulla
- Department of Life Sciences, University of Trieste, Trieste, Italy
- *Correspondence: Roberta Bulla
| | - Uday Kishore
- Biosciences, College of Health and Life Sciences, Brunel University London, Uxbridge, United Kingdom
- Uday Kishore ;
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9
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Kale K, Vishwekar P, Balsarkar G, Jassawalla MJ, Sawant G, Madan T. Differential levels of surfactant protein A, surfactant protein D, and progesterone to estradiol ratio in maternal serum before and after the onset of severe early‐onset preeclampsia. Am J Reprod Immunol 2019; 83:e13208. [DOI: 10.1111/aji.13208] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Revised: 10/23/2019] [Accepted: 11/01/2019] [Indexed: 12/19/2022] Open
Affiliation(s)
- Kavita Kale
- Department of Innate Immunity ICMR‐National Institute for Research in Reproductive Health Mumbai India
| | - Pallavi Vishwekar
- Department of Obstetrics and Gynaecology Dr. DY Patil Medical College, Hospital and Research Centre Navi Mumbai Mumbai India
| | - Geetha Balsarkar
- Department of Obstetrics and Gynaecology Nowrosjee Wadia Maternity Hospital Mumbai India
| | | | - Ganpat Sawant
- Department of Obstetrics and Gynaecology Dr. DY Patil Medical College, Hospital and Research Centre Navi Mumbai Mumbai India
| | - Taruna Madan
- Department of Innate Immunity ICMR‐National Institute for Research in Reproductive Health Mumbai India
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10
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Kumar J, Murugaiah V, Sotiriadis G, Kaur A, Jeyaneethi J, Sturniolo I, Alhamlan FS, Chatterjee J, Hall M, Kishore U, Karteris E. Surfactant Protein D as a Potential Biomarker and Therapeutic Target in Ovarian Cancer. Front Oncol 2019; 9:542. [PMID: 31338320 PMCID: PMC6629871 DOI: 10.3389/fonc.2019.00542] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2019] [Accepted: 06/04/2019] [Indexed: 12/11/2022] Open
Abstract
Surfactant protein D (SP-D) is an important innate immune molecule that is involved in clearing pathogens and regulating inflammation at pulmonary as well as extra-pulmonary sites. Recent studies have established the role of SP-D as an innate immune surveillance molecule against lung and pancreatic cancer, but little is known about its involvement in signaling pathways it can potentially activate in ovarian cancer. We focused our study on ovarian cancer by performing bioinformatics analysis (Oncomine) of datasets and survival analysis (Kaplan-Meier plotter), followed by immunohistochemistry using ovarian cancer tissue microarrays. SP-D mRNA was found to be expressed widely in different types of ovarian cancer irrespective of stage or grade. These in silico data were further validated by immunohistochemistry of clinical tissues. High transcriptional levels of SP-D were associated with unfavorable prognosis (overall and progression-free survival). We also detected SP-D protein in Circulating Tumor Cells of three ovarian cancer patients, suggesting that SP-D can also be used as a potential biomarker. Previous studies have shown that a recombinant fragment of human SP-D (rfhSP-D) induced apoptosis in pancreatic cancer cells via Fas-mediated pathway. In this study, we report that treatment of SKOV3 cells (an ovarian cancer cell line) with rfhSP-D led to a decrease in cell motility and cell proliferation. This was followed by an inhibition of the mTOR pathway activity, increase in caspase 3 cleavage, and induction of pro-apoptotic genes Fas and TNF-α. These data, suggesting a likely protective role of rfhSP-D against ovarian cancer, together with the observation that the ovarian cancer microenvironment overexperesses SP-D leading to poor prognosis, seems to suggest that the tumor microenvironment components manipulate the protective effect of SP-D in vivo.
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Affiliation(s)
- Juhi Kumar
- Department of Life Sciences, College of Health and Life Sciences, Brunel University London, Uxbridge, United Kingdom
| | - Valamarthy Murugaiah
- Department of Life Sciences, College of Health and Life Sciences, Brunel University London, Uxbridge, United Kingdom
| | - Georgios Sotiriadis
- Department of Life Sciences, College of Health and Life Sciences, Brunel University London, Uxbridge, United Kingdom
| | - Anuvinder Kaur
- Department of Life Sciences, College of Health and Life Sciences, Brunel University London, Uxbridge, United Kingdom
| | - Jeyarooban Jeyaneethi
- Department of Life Sciences, College of Health and Life Sciences, Brunel University London, Uxbridge, United Kingdom
| | - Isotta Sturniolo
- Department of Life Sciences, College of Health and Life Sciences, Brunel University London, Uxbridge, United Kingdom
| | - Fatimah S Alhamlan
- Department of Infection and Immunity, King Faisal Specialist Hospital and Research Centre, Riyadh, Saudi Arabia
| | - Jayanta Chatterjee
- Faculty of Health and Medical Sciences, School of Biosciences and Medicine, University of Surrey, Guildford, United Kingdom
| | - Marcia Hall
- Department of Life Sciences, College of Health and Life Sciences, Brunel University London, Uxbridge, United Kingdom.,Mount Vernon Cancer Centre, Northwood, United Kingdom
| | - Uday Kishore
- Department of Life Sciences, College of Health and Life Sciences, Brunel University London, Uxbridge, United Kingdom
| | - Emmanouil Karteris
- Department of Life Sciences, College of Health and Life Sciences, Brunel University London, Uxbridge, United Kingdom.,Institute of Environment, Health and Societies, Brunel University London, Uxbridge, United Kingdom
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Intrauterine inflammatory activation, functional progesterone withdrawal, and the timing of term and preterm birth. J Reprod Immunol 2018; 125:89-99. [DOI: 10.1016/j.jri.2017.12.004] [Citation(s) in RCA: 73] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2016] [Revised: 12/17/2017] [Accepted: 12/21/2017] [Indexed: 01/19/2023]
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Watson A, Kronqvist N, Spalluto CM, Griffiths M, Staples KJ, Wilkinson T, Holmskov U, Sorensen GL, Rising A, Johansson J, Madsen J, Clark H. Novel expression of a functional trimeric fragment of human SP-A with efficacy in neutralisation of RSV. Immunobiology 2016; 222:111-118. [PMID: 27793398 PMCID: PMC5152705 DOI: 10.1016/j.imbio.2016.10.015] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2016] [Revised: 10/17/2016] [Accepted: 10/17/2016] [Indexed: 12/02/2022]
Abstract
Respiratory syncytial virus (RSV) is the leading cause of bronchiolitis and hospitalisation of infants in developed countries. Surfactant protein A (SP-A) is an important innate immune molecule, localized in pulmonary surfactant. SP-A binds to carbohydrates on the surface of pathogens in a calcium-dependent manner to enable neutralisation, agglutination and clearance of pathogens including RSV. SP-A forms trimeric units and further oligomerises through interactions between its N-terminal domains. Whilst a recombinant trimeric fragment of the closely related molecule (surfactant protein D) has been shown to retain many of the native protein’s functions, the importance of the SP-A oligomeric structure in its interaction with RSV has not been determined. The aim of this study was to produce a functional trimeric recombinant fragment of human (rfh)SP-A, which lacks the N-terminal domain (and the capacity to oligomerise) and test its ability to neutralise RSV in an in vitro model of human bronchial epithelial infection. We used a novel expression tag derived from spider silk proteins (‘NT’) to produce rfhSP-A in Escherichia coli, which we found to be trimeric and to bind to mannan in a calcium-dependent manner. Trimeric rfhSP-A reduced infection levels of human bronchial epithelial (AALEB) cells by RSV by up to a mean (±SD) of 96.4 (±1.9) % at 5 μg/ml, which was significantly more effective than dimeric rfhSP-A (34.3 (±20.5) %) (p < 0.0001). Comparatively, native human SP-A reduced RSV infection by up to 38.5 (±28.4) %. For the first time we report the development of a functional trimeric rfhSP-A molecule which is highly efficacious in neutralising RSV, despite lacking the N-terminal domain and capacity to oligomerise.
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Affiliation(s)
- Alastair Watson
- Clinical & Experimental Sciences Academic Unit, Southampton General Hospital, University of Southampton, Southampton, United Kingdom
| | - Nina Kronqvist
- Division for Neurogeriatrics, Center for Alzheimer Research, Department of NVS, Karolinska Institutet, 141 57 Huddinge, Sweden
| | - C Mirella Spalluto
- Clinical & Experimental Sciences Academic Unit, Southampton General Hospital, University of Southampton, Southampton, United Kingdom
| | - Mark Griffiths
- Leukocyte Biology, Imperial College London, Royal Brompton Campus, London SW3 6NP, United Kingdom
| | - Karl J Staples
- Clinical & Experimental Sciences Academic Unit, Southampton General Hospital, University of Southampton, Southampton, United Kingdom
| | - Tom Wilkinson
- Clinical & Experimental Sciences Academic Unit, Southampton General Hospital, University of Southampton, Southampton, United Kingdom; Southampton NIHR Respiratory Biomedical Research Unit, Southampton General Hospital, Southampton, United Kingdom
| | - Uffe Holmskov
- Institute of Molecular Medicine, University of Southern Denmark, Odense, Denmark
| | - Grith L Sorensen
- Institute of Molecular Medicine, University of Southern Denmark, Odense, Denmark
| | - Anna Rising
- Division for Neurogeriatrics, Center for Alzheimer Research, Department of NVS, Karolinska Institutet, 141 57 Huddinge, Sweden; Department of Anatomy, Physiology and Biochemistry, Swedish University of Agricultural Sciences, Box 7011, 750 07 Uppsala, Sweden
| | - Jan Johansson
- Division for Neurogeriatrics, Center for Alzheimer Research, Department of NVS, Karolinska Institutet, 141 57 Huddinge, Sweden; Department of Anatomy, Physiology and Biochemistry, Swedish University of Agricultural Sciences, Box 7011, 750 07 Uppsala, Sweden
| | - Jens Madsen
- Clinical & Experimental Sciences Academic Unit, Southampton General Hospital, University of Southampton, Southampton, United Kingdom; Southampton NIHR Respiratory Biomedical Research Unit, Southampton General Hospital, Southampton, United Kingdom; Institute for Life Sciences, University of Southampton, Southampton SO17 1BJ, United Kingdom
| | - Howard Clark
- Clinical & Experimental Sciences Academic Unit, Southampton General Hospital, University of Southampton, Southampton, United Kingdom; Division for Neurogeriatrics, Center for Alzheimer Research, Department of NVS, Karolinska Institutet, 141 57 Huddinge, Sweden; Southampton NIHR Respiratory Biomedical Research Unit, Southampton General Hospital, Southampton, United Kingdom.
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Madhukaran SP, Alhamlan FS, Kale K, Vatish M, Madan T, Kishore U. Role of collectins and complement protein C1q in pregnancy and parturition. Immunobiology 2016; 221:1273-88. [PMID: 27349595 DOI: 10.1016/j.imbio.2016.06.002] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2016] [Revised: 05/27/2016] [Accepted: 06/09/2016] [Indexed: 12/18/2022]
Abstract
Collectins such as surfactant proteins SP-A, SP-D, and mannan-binding lectin (MBL), as well as complement protein C1q are evolutionarily conserved innate immune molecules. They are known to opsonize a range of microbial pathogens (bacteria, fungi, virus, and parasites) and trigger effector clearance mechanisms involving phagocytosis and/or complement activation. Collectins and C1q have also attracted attention in studies involving pregnancy as they are expressed in the female reproductive tissues during pregnancy; a unique state of immune suppression with increased susceptibility to infectious diseases. Recent studies are beginning to unravel their functional significance in implantation, placentation, pregnancy maintenance and parturition in normal and adverse pregnancies. Collectins and C1q, expressed in gestational tissues during pregnancy, might alter the status of mother's immune response to the allogenic fetus and the microenvironment, thereby serving as important regulators of fetus-mother interaction. Here, we discuss the functional roles that have been assigned to SP-A, SP-D, MBL and C1q in pregnancy and parturition.
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Affiliation(s)
- Shanmuga Priyaa Madhukaran
- Biosciences, College of Health and Life Sciences, Brunel University London, Uxbridge UB8 3PH, United Kingdom; Centre for Biotechnology and Bioinformatics, School of Life Sciences, Jawaharlal Nehru Institute for Advanced Studies, Secunderabad, Telangana, India
| | - Fatimah S Alhamlan
- Department of Infection and Immunity, King Faisal Specialist Hospital and Research Centre, Riyadh, Saudi Arabia
| | - Kavita Kale
- Department of Innate Immunity, National Institute for Research in Reproductive Health (ICMR), Mumbai 400 012, India
| | - Manu Vatish
- Nuffield Department of Obstetrics & Gynaecology, University of Oxford, Oxford, OX3 9DU, United Kingdom
| | - Taruna Madan
- Department of Innate Immunity, National Institute for Research in Reproductive Health (ICMR), Mumbai 400 012, India
| | - Uday Kishore
- Biosciences, College of Health and Life Sciences, Brunel University London, Uxbridge UB8 3PH, United Kingdom.
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