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Couch ACM, Brown AM, Raimundo C, Solomon S, Taylor M, Sichlinger L, Matuleviciute R, Srivastava DP, Vernon AC. Transcriptional and cellular response of hiPSC-derived microglia-neural progenitor co-cultures exposed to IL-6. Brain Behav Immun 2024:S0889-1591(24)00529-4. [PMID: 39098436 DOI: 10.1016/j.bbi.2024.08.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Revised: 07/12/2024] [Accepted: 08/01/2024] [Indexed: 08/06/2024] Open
Abstract
Elevated interleukin (IL-)6 levels during prenatal development have been linked to increased risk for neurodevelopmental disorders (NDD) in the offspring, but the mechanism remains unclear. Human-induced pluripotent stem cell (hiPSC) models offer a valuable tool to study the effects of IL-6 on features relevant for human neurodevelopment in vitro. We previously reported that hiPSC-derived microglia-like cells (MGLs) respond to IL-6, but neural progenitor cells (NPCs) in monoculture do not. Therefore, we investigated whether co-culturing hiPSC-derived MGLs with NPCs would trigger a cellular response to IL-6 stimulation via secreted factors from the MGLs. Using N=4 donor lines without psychiatric diagnosis, we first confirmed that NPCs can respond to IL-6 through trans-signalling when recombinant IL-6Ra is present, and that this response is dose-dependent. MGLs secreted soluble IL-6R, but at lower levels than found in vivo and below that needed to activate trans-signalling in NPCs. Whilst transcriptomic and secretome analysis confirmed that MGLs undergo substantial transcriptomic changes after IL-6 exposure and subsequently secrete a cytokine milieu, NPCs in co-culture with MGLs exhibited a minimal transcriptional response. Furthermore, there were no significant cell fate-acquisition changes when differentiated into post-mitotic cultures, nor alterations in synaptic densities in mature neurons. These findings highlight the need to investigate if trans-IL-6 signalling to NPCs is a relevant disease mechanism linking prenatal IL-6 exposure to increased risk for psychiatric disorders. Moreover, our findings underscore the importance of establishing more complex in vitro human models with diverse cell types, which may show cell-specific responses to microglia-released cytokines to fully understand how IL-6 exposure may influence human neurodevelopment.
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Affiliation(s)
- Amalie C M Couch
- Department of Basic and Clinical Neuroscience, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK; MRC Centre for Neurodevelopmental Disorders, King's College London, London, UK.
| | - Amelia M Brown
- Department of Basic and Clinical Neuroscience, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK; MRC Centre for Neurodevelopmental Disorders, King's College London, London, UK
| | - Catarina Raimundo
- Department of Basic and Clinical Neuroscience, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK; Faculty of Life Sciences and Medicine, King's College London, London, UK
| | - Shiden Solomon
- Department of Basic and Clinical Neuroscience, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
| | - Morgan Taylor
- Department of Basic and Clinical Neuroscience, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
| | - Laura Sichlinger
- Department of Basic and Clinical Neuroscience, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK; MRC Centre for Neurodevelopmental Disorders, King's College London, London, UK
| | - Rugile Matuleviciute
- Department of Basic and Clinical Neuroscience, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK; MRC Centre for Neurodevelopmental Disorders, King's College London, London, UK
| | - Deepak P Srivastava
- Department of Basic and Clinical Neuroscience, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK; MRC Centre for Neurodevelopmental Disorders, King's College London, London, UK
| | - Anthony C Vernon
- Department of Basic and Clinical Neuroscience, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK; MRC Centre for Neurodevelopmental Disorders, King's College London, London, UK.
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Martz J, Shelton MA, Geist L, Seney ML, Kentner AC. Sex differences in offspring risk and resilience following 11β-hydroxylase antagonism in a rodent model of maternal immune activation. Neuropsychopharmacology 2024; 49:1078-1090. [PMID: 38007547 PMCID: PMC11109257 DOI: 10.1038/s41386-023-01771-5] [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: 08/10/2023] [Revised: 10/21/2023] [Accepted: 11/08/2023] [Indexed: 11/27/2023]
Abstract
Maternal immune activation (MIA) puts offspring at greater risk for neurodevelopmental disorders associated with impaired social behavior. While it is known that immune signaling through maternal, placental, and fetal compartments contributes to these phenotypical changes, it is unknown to what extent the stress response to illness is involved and how it can be harnessed for potential interventions. To this end, on gestational day 15, pregnant rat dams were administered the bacterial mimetic lipopolysaccharide (LPS; to induce MIA) alongside metyrapone, a clinically available 11β-hydroxylase (11βHSD) inhibitor used to treat hypercortisolism in pregnant, lactating, and neonatal populations. Maternal, placental, and fetal brain levels of corticosterone and placental 11βHSD enzymes type 1 and 2 were measured 3-hrs post treatment. Offspring social behaviors were evaluated across critical phases of development. MIA was associated with increased maternal, placental, and fetal brain corticosterone concentrations that were diminished with metyrapone exposure. Metyrapone protected against reductions in placental 11βHSD2 in males only, suggesting that less corticosterone was inactivated in female placentas. Behaviorally, metyrapone-exposure attenuated MIA-induced social disruptions in juvenile, adolescent, and adult males, while females were unaffected or performed worse. Metyrapone-exposure reversed MIA-induced transcriptional changes in monoamine-, glutamate-, and GABA-related genes in adult male ventral hippocampus, but not in females. Taken together, these findings illustrate that MIA-induced HPA responses act alongside the immune system to produce behavioral deficits. As a clinically available drug, the sex-specific benefits and constraints of metyrapone should be investigated further as a potential means of reducing neurodevelopmental risks due to gestational MIA.
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Affiliation(s)
- Julia Martz
- School of Arts & Sciences, Health Psychology Program, Massachusetts College of Pharmacy and Health Sciences, Boston, MA, 02115, USA
| | - Micah A Shelton
- Department of Psychiatry, University of Pittsburgh, 450 Technology Drive, Pittsburgh, PA, 15219, USA
| | - Laurel Geist
- School of Arts & Sciences, Health Psychology Program, Massachusetts College of Pharmacy and Health Sciences, Boston, MA, 02115, USA
| | - Marianne L Seney
- Department of Psychiatry, University of Pittsburgh, 450 Technology Drive, Pittsburgh, PA, 15219, USA
| | - Amanda C Kentner
- School of Arts & Sciences, Health Psychology Program, Massachusetts College of Pharmacy and Health Sciences, Boston, MA, 02115, USA.
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Gilley A, Boly TJ, Paden A, Bermick J. Neonatal immune cells have heightened responses following in-utero exposure to chorioamnionitis or COVID-19. Pediatr Res 2024; 95:1483-1492. [PMID: 37949998 PMCID: PMC11082064 DOI: 10.1038/s41390-023-02888-5] [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: 06/12/2023] [Revised: 09/25/2023] [Accepted: 10/20/2023] [Indexed: 11/12/2023]
Abstract
BACKGROUND Chorioamnionitis alters neonatal immune responses. Gestational COVID-19 infection is associated with adverse pregnancy outcomes, but its impact on neonatal immunity is unclear. We hypothesized that gestational COVID-19 exposure would result in exaggerated neonatal immune responses, similar to chorioamnionitis-exposed neonates. METHODS Term umbilical cord blood mononuclear cells (CBMCs) were isolated from neonates exposed to chorioamnionitis, gestational COVID-19 or unexposed controls. CBMCs were cultured and stimulated with heat-killed Escherichia coli, Streptococcus agalactiae or Staphylococcus epidermidis. A multiplexed protein assay was used to measure cytokine levels in cell culture supernatants and flow cytometry was used to evaluate cellular-level cytokine expression. RESULTS Both chorioamnionitis-exposed and COVID-19 exposed CBMCs demonstrated upregulation of IL-1β and IL-6 compared to unexposed CBMCs, while only COVID-19 exposure resulted in IL-8 upregulation. There were no differences between chorioamnionitis-exposed and COVID-19 exposed CBMCs when these groups were directly compared. Flow cytometry demonstrated immune cell subset specific differences in cytokine expression between the exposure groups. CONCLUSION The fetal/neonatal response to maternal inflammation differed based on immune cell subset and etiology of inflammation, but the global neonatal cytokine responses were similar between exposure groups. This suggests that targeting perinatal inflammation rather than the specific etiology may be a possible therapeutic approach. IMPACT Neonatal immune cells have similar pathogen-associated global cytokine responses, but different cell-level immune responses, following in-utero exposure to chorioamnionitis or COVID-19. This is the first study to directly compare immune responses between neonates exposed to chorioamnionitis and COVID-19. This suggests that the fetal/neonatal cellular response to perinatal inflammation differs based on the etiology and severity of maternal inflammation, but still results in a similar overall inflammatory profile regardless of the cause of perinatal inflammation.
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Affiliation(s)
- Annemarie Gilley
- Division of Maternal Fetal Medicine, Department of Obstetrics and Gynecology, University of Iowa, Iowa City, IA, USA.
| | - Timothy J Boly
- Division of Neonatology, Department of Pediatrics, University of Iowa, Iowa City, IA, USA
- Iowa Inflammation Program, University of Iowa, Iowa City, IA, USA
| | - Austin Paden
- Division of Neonatology, Department of Pediatrics, University of Iowa, Iowa City, IA, USA
- Iowa Inflammation Program, University of Iowa, Iowa City, IA, USA
| | - Jennifer Bermick
- Division of Neonatology, Department of Pediatrics, University of Iowa, Iowa City, IA, USA
- Iowa Inflammation Program, University of Iowa, Iowa City, IA, USA
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Prentice R, Flanagan E, Wright E, Hardikar W, Ross A, Burns M, Prideaux L, Connell W, Sparrow M, De Cruz P, Lust M, Goldberg R, Vogrin S, Greeve T, Bell S. Thrombocytosis and Transaminitis in Infants Born to Women With Inflammatory Bowel Disease Is Associated With Exposure to Maternal Inflammation In Utero. Inflamm Bowel Dis 2024:izae008. [PMID: 38330216 DOI: 10.1093/ibd/izae008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Indexed: 02/10/2024]
Abstract
BACKGROUND Despite reassuring clinical safety data, thrombocytosis, anemia, lymphopenia, and liver function derangements have been observed in infants born to women with inflammatory bowel disease (IBD) treated with thiopurines and biologics. We aimed to define the prevalence, course, associations, and clinical impact of hematological and biochemical abnormalities in such infants. METHODS This multicenter prospective cohort study assessed clinical, hematologic, and biochemical outcomes of infants exposed to thiopurines or biologics in utero for management of maternal IBD. Liver transaminases, full blood examination, and infant thiopurine metabolites (where exposed) were taken at delivery and 6 weeks of age. Abnormal results were repeated until normalization. Infants were followed clinically by a pediatric gastroenterologist up to 2 years of age. RESULTS A total of 130 infants were included. Thrombocytosis and elevated alanine transaminase (ALT) were seen in over half of infants up to 6 months of age with no significant clinical impact. Elevated ALT was associated with increasing maternal C-reactive protein in second trimester, while thrombocytosis was associated with increasing maternal C-reactive protein and fecal calprotectin in third trimester. Preceding infection and vaccination were associated with an increased risk of elevated alkaline phosphatase at 3 months. In those exposed to thiopurines, increasing maternal 6-methylmercaptopurine at delivery was associated with increased ALT to 6 months. CONCLUSIONS Infants born to women with IBD commonly developed thrombocytosis, elevated alkaline phosphatase, and elevated ALT. These findings were associated with exposure to maternal inflammation, elevated 6-methylmercaptopurine at delivery, and infant vaccinations and infections, and had minimal clinical consequence.
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Affiliation(s)
- Ralley Prentice
- Gastroenterology Department, Monash Health, Melbourne, Australia
- Gastroenterology Department, St Vincent's Hospital Melbourne, Melbourne, Australia
- Faculty of Medicine, Nursing and Health Sciences, Monash University, Melbourne, Australia
| | - Emma Flanagan
- Gastroenterology Department, St Vincent's Hospital Melbourne, Melbourne, Australia
- Faculty of Medicine, Dentistry and Health Sciences, University of Melbourne, Melbourne, Australia
| | - Emily Wright
- Gastroenterology Department, St Vincent's Hospital Melbourne, Melbourne, Australia
- Faculty of Medicine, Dentistry and Health Sciences, University of Melbourne, Melbourne, Australia
| | - Winita Hardikar
- Faculty of Medicine, Dentistry and Health Sciences, University of Melbourne, Melbourne, Australia
- Gastroenterology Department, Royal Children's Hospital, Melbourne, Australia
| | - Alyson Ross
- Gastroenterology Department, St Vincent's Hospital Melbourne, Melbourne, Australia
| | - Megan Burns
- Gastroenterology Department, Monash Health, Melbourne, Australia
| | - Lani Prideaux
- Gastroenterology Department, Monash Health, Melbourne, Australia
| | - William Connell
- Gastroenterology Department, St Vincent's Hospital Melbourne, Melbourne, Australia
- Faculty of Medicine, Dentistry and Health Sciences, University of Melbourne, Melbourne, Australia
| | - Miles Sparrow
- Faculty of Medicine, Nursing and Health Sciences, Monash University, Melbourne, Australia
- Gastroenterology Department, Alfred Health, Melbourne, Australia
| | - Peter De Cruz
- Faculty of Medicine, Nursing and Health Sciences, Monash University, Melbourne, Australia
- Gastroenterology Department, Austin Health, Melbourne, Australia
| | - Mark Lust
- Gastroenterology Department, St Vincent's Hospital Melbourne, Melbourne, Australia
| | - Rimma Goldberg
- Gastroenterology Department, Monash Health, Melbourne, Australia
- Faculty of Medicine, Nursing and Health Sciences, Monash University, Melbourne, Australia
| | - Sara Vogrin
- Faculty of Medicine, Dentistry and Health Sciences, University of Melbourne, Melbourne, Australia
| | - Tessa Greeve
- Gastroenterology Department, Monash Health, Melbourne, Australia
| | - Sally Bell
- Gastroenterology Department, Monash Health, Melbourne, Australia
- Faculty of Medicine, Nursing and Health Sciences, Monash University, Melbourne, Australia
- Faculty of Medicine, Dentistry and Health Sciences, University of Melbourne, Melbourne, Australia
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Xu C, Fan C, Zhang J, Zeng X, Fan Y, Feng S. Laboratory markers to identify acute histological chorioamnionitis in febrile parturients undergoing epidural analgesia: a retrospective study. BMC Pregnancy Childbirth 2023; 23:766. [PMID: 37919654 PMCID: PMC10621168 DOI: 10.1186/s12884-023-06026-1] [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: 03/16/2023] [Accepted: 09/24/2023] [Indexed: 11/04/2023] Open
Abstract
BACKGROUND This study aimed to investigate the effect of the pathological staging of acute histological chorioamnionitis (HCA) on laboratory indicators and to conduct further studies to reassess the threshold values used by clinicians to identify acute HCA in febrile parturients undergoing epidural analgesia. METHODS A retrospective study of febrile mothers receiving epidural analgesia at Nanjing Maternal and Child Health Care Hospital from January 1, 2018 to December 31, 2018. The participants were grouped by the progression of acute HCA, and the laboratory parameters were compared between groups. The ability of C-reactive protein (CRP), neutrophil-lymphocyte ratio (NLR), monocyte-lymphocyte ratio (MLR), and monocyte-leukocyte ratio (M%), alone or in combination, to identify acute HCA in febrile parturients undergoing epidural analgesia was assessed using logistic regression and ROC curves. RESULTS The area under the curve (AUC) of the best logistic regression model predicting HCA climbed to 0.706 (CRP + MLR). Maternal CRP, NLR, and MLR significantly and progressively increased with the progression of acute HCA (p < 0.0001). Based on the ROC curves, the following thresholds were selected to define increased laboratory indicators for identifying acute HCA: CRP ≥ 6.90 mg/L, NLR ≥ 11.93, and MLR ≥ 0.57. In addition, the AUC of the best logistic regression model predicting HCA ≥ stage 2 was 0.710, so these inflammatory markers were more precise in predicting HCA ≥ stage 2. CONCLUSION Increased CRP (≥ 6.90 mg/L), NLR (≥ 11.93), and MLR (≥ 0.57) may help clinicians to identify early potential acute HCA in febrile parturients receiving epidural analgesia and to monitor progression to optimize clinical treatment options. TRIAL REGISTRATION The study was registered in the Chinese Clinical Trial Registry on November 24, 2021 ( http://www.chictr.org.cn , ChiCTR2100053554).
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Affiliation(s)
- Chenyang Xu
- Department of Anesthesiology, Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, 210001, Jiangsu, China
| | - Chong Fan
- Department of Emergency, Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, 210001, Jiangsu, China
| | - Jingjing Zhang
- Department of Delivery Room, Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, 210001, Jiangsu, China
| | - Xin Zeng
- Department of Medical Research Center, Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, 210001, Jiangsu, China.
| | - Yuru Fan
- Department of Delivery Room, Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, 210001, Jiangsu, China.
| | - Shanwu Feng
- Department of Anesthesiology, Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, 210001, Jiangsu, China.
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Kosińska-Kaczyńska K, Rebizant B, Czeszko-Paprocka H, Bojdo A, Przybylski M, Chaberek K, Lewandowska A, Szymusik I, Brawura-Biskupski-Samaha R. Maternal SARS-CoV-2 Infection at Delivery Increases IL-6 Concentration in Umbilical Cord Blood. J Clin Med 2023; 12:5672. [PMID: 37685739 PMCID: PMC10488671 DOI: 10.3390/jcm12175672] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Revised: 08/21/2023] [Accepted: 08/28/2023] [Indexed: 09/10/2023] Open
Abstract
BACKGROUND SARS-CoV-2 infection in pregnant women may induce inflammation within the amniotic cavity and/or an increase in proinflammatory cytokines in fetal circulation. The aim was to investigate levels of IL-6 in maternal blood, umbilical cord blood, and amniotic fluid in pregnant women infected with SARS-CoV-2 at delivery. METHODS A single-center prospective observational case-control study of pregnant women diagnosed with SARS-CoV-2 infection at delivery was conducted. A total of 48 infected and 42 healthy women had IL-6 concentrations measured in their blood, amniotic fluid, and umbilical cord blood. RESULTS The concentrations of IL-6 in maternal blood and amniotic fluid were similar in the study and control groups, while umbilical cord blood concentrations were significantly higher in SARS-CoV-2-positive women. The umbilical cord blood IL-6 concentration was related to composite neonatal morbidity. CONCLUSIONS Maternal SARS-CoV-2 infection in pregnant women at delivery increases umbilical cord blood IL-6 concentration. The correlation between maternal and umbilical blood concentrations indicates a possibility of passage of IL-6 through the placenta. Perinatal alterations resulting from maternal SARS-CoV-2 infection at delivery carry a risk of impacting the health of infants even in asymptomatic course of infection.
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Affiliation(s)
- Katarzyna Kosińska-Kaczyńska
- Department of Obstetrics, Perinatology and Neonatology, Center of Postgraduate Medical Education, 01-809 Warsaw, Poland; (K.K.-K.); (A.B.); (K.C.); (A.L.); (I.S.); (R.B.-B.-S.)
| | - Beata Rebizant
- Department of Obstetrics, Perinatology and Neonatology, Center of Postgraduate Medical Education, 01-809 Warsaw, Poland; (K.K.-K.); (A.B.); (K.C.); (A.L.); (I.S.); (R.B.-B.-S.)
| | - Hanna Czeszko-Paprocka
- Central Analytical Laboratory, Warsaw Infectious Diseases Hospital, 01-201 Warsaw, Poland;
| | - Agata Bojdo
- Department of Obstetrics, Perinatology and Neonatology, Center of Postgraduate Medical Education, 01-809 Warsaw, Poland; (K.K.-K.); (A.B.); (K.C.); (A.L.); (I.S.); (R.B.-B.-S.)
| | - Maciej Przybylski
- Department of Medical Microbiology, Medical University of Warsaw, 02-091 Warsaw, Poland;
| | - Katarzyna Chaberek
- Department of Obstetrics, Perinatology and Neonatology, Center of Postgraduate Medical Education, 01-809 Warsaw, Poland; (K.K.-K.); (A.B.); (K.C.); (A.L.); (I.S.); (R.B.-B.-S.)
| | - Agnieszka Lewandowska
- Department of Obstetrics, Perinatology and Neonatology, Center of Postgraduate Medical Education, 01-809 Warsaw, Poland; (K.K.-K.); (A.B.); (K.C.); (A.L.); (I.S.); (R.B.-B.-S.)
| | - Iwona Szymusik
- Department of Obstetrics, Perinatology and Neonatology, Center of Postgraduate Medical Education, 01-809 Warsaw, Poland; (K.K.-K.); (A.B.); (K.C.); (A.L.); (I.S.); (R.B.-B.-S.)
| | - Robert Brawura-Biskupski-Samaha
- Department of Obstetrics, Perinatology and Neonatology, Center of Postgraduate Medical Education, 01-809 Warsaw, Poland; (K.K.-K.); (A.B.); (K.C.); (A.L.); (I.S.); (R.B.-B.-S.)
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