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Zanini F, Che X, Suresh NE, Knutsen C, Klavina P, Xie Y, Domingo-Gonzalez R, Liu M, Kum A, Jones RC, Quake SR, Alvira CM, Cornfield DN. Hyperoxia prevents the dynamic neonatal increases in lung mesenchymal cell diversity. Sci Rep 2024; 14:2033. [PMID: 38263350 PMCID: PMC10805790 DOI: 10.1038/s41598-023-50717-w] [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: 05/05/2023] [Accepted: 12/23/2023] [Indexed: 01/25/2024] Open
Abstract
Rapid expansion of the pulmonary microvasculature through angiogenesis drives alveolarization, the final stage of lung development that occurs postnatally and dramatically increases lung gas-exchange surface area. Disruption of pulmonary angiogenesis induces long-term structural and physiologic lung abnormalities, including bronchopulmonary dysplasia, a disease characterized by compromised alveolarization. Although endothelial cells are primary determinants of pulmonary angiogenesis, mesenchymal cells (MC) play a critical and dual role in angiogenesis and alveolarization. Therefore, we performed single cell transcriptomics and in-situ imaging of the developing lung to profile mesenchymal cells during alveolarization and in the context of lung injury. Specific mesenchymal cell subtypes were present at birth with increasing diversity during alveolarization even while expressing a distinct transcriptomic profile from more mature correlates. Hyperoxia arrested the transcriptomic progression of the MC, revealed differential cell subtype vulnerability with pericytes and myofibroblasts most affected, altered cell to cell communication, and led to the emergence of Acta1 expressing cells. These insights hold the promise of targeted treatment for neonatal lung disease, which remains a major cause of infant morbidity and mortality across the world.
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Affiliation(s)
- Fabio Zanini
- School of Clinical Medicine, University of New South Wales, Sydney, Australia.
- Cellular Genomics Futures Institute, University of New South Wales, Sydney, NSW, Australia.
- Evolution & Ecology Research Centre, University of New South Wales, Sydney, NSW, Australia.
| | - Xibing Che
- Center for Excellence in Pulmonary Biology, Stanford University School of Medicine, Stanford, CA, USA
- Division of Pulmonary, Asthma and Sleep Medicine, Department of Pediatrics, Stanford University School of Medicine, Stanford, CA, USA
| | - Nina E Suresh
- Center for Excellence in Pulmonary Biology, Stanford University School of Medicine, Stanford, CA, USA
- Division of Pulmonary, Asthma and Sleep Medicine, Department of Pediatrics, Stanford University School of Medicine, Stanford, CA, USA
| | - Carsten Knutsen
- Center for Excellence in Pulmonary Biology, Stanford University School of Medicine, Stanford, CA, USA
- Division of Critical Care Medicine, Department of Pediatrics, Stanford University School of Medicine, Stanford, CA, USA
| | - Paula Klavina
- School of Biochemistry and Immunology, Trinity College Dublin, Dublin, Ireland
| | - Yike Xie
- School of Clinical Medicine, University of New South Wales, Sydney, Australia
| | - Racquel Domingo-Gonzalez
- Center for Excellence in Pulmonary Biology, Stanford University School of Medicine, Stanford, CA, USA
- Division of Critical Care Medicine, Department of Pediatrics, Stanford University School of Medicine, Stanford, CA, USA
| | - Min Liu
- Center for Excellence in Pulmonary Biology, Stanford University School of Medicine, Stanford, CA, USA
- Division of Critical Care Medicine, Department of Pediatrics, Stanford University School of Medicine, Stanford, CA, USA
| | - Alexander Kum
- Center for Excellence in Pulmonary Biology, Stanford University School of Medicine, Stanford, CA, USA
- Division of Critical Care Medicine, Department of Pediatrics, Stanford University School of Medicine, Stanford, CA, USA
| | - Robert C Jones
- Department of Bioengineering, Stanford University, Stanford, CA, USA
| | - Stephen R Quake
- Department of Bioengineering, Stanford University, Stanford, CA, USA
- Chan Zuckerberg Biohub, San Francisco, CA, USA
- Department of Applied Physics, Stanford University, Stanford, CA, USA
| | - Cristina M Alvira
- Center for Excellence in Pulmonary Biology, Stanford University School of Medicine, Stanford, CA, USA
- Division of Critical Care Medicine, Department of Pediatrics, Stanford University School of Medicine, Stanford, CA, USA
| | - David N Cornfield
- Center for Excellence in Pulmonary Biology, Stanford University School of Medicine, Stanford, CA, USA.
- Division of Pulmonary, Asthma and Sleep Medicine, Department of Pediatrics, Stanford University School of Medicine, Stanford, CA, USA.
- Chan Zuckerberg Biohub, San Francisco, CA, USA.
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Shimoda LA. Feeling good: welcoming the new editorial team for American Journal of Physiology-Lung Cellular and Molecular Physiology. Am J Physiol Lung Cell Mol Physiol 2024; 326:L1-L6. [PMID: 38032943 DOI: 10.1152/ajplung.00359.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Accepted: 11/29/2023] [Indexed: 12/02/2023] Open
Affiliation(s)
- Larissa A Shimoda
- Division of Pulmonary and Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States
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Barnes EA, Knutsen C, Kindt A, Che X, Ying L, Adams E, Gonzalez E, Oak P, Hilgendorff A, Alvira CM, Cornfield DN. Hypoxia-Inducible Factor-1α in SM22α-Expressing Cells Modulates Alveolarization. Am J Respir Cell Mol Biol 2023; 69:470-483. [PMID: 37290124 PMCID: PMC10557922 DOI: 10.1165/rcmb.2023-0045oc] [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: 02/06/2023] [Accepted: 06/08/2023] [Indexed: 06/10/2023] Open
Abstract
Worldwide, the incidence of both preterm births and chronic lung disease of infancy, or bronchopulmonary dysplasia, remains high. Infants with bronchopulmonary dysplasia have larger and fewer alveoli, a lung pathology that can persist into adulthood. Although recent data point to a role for hypoxia-inducible factor-1α (HIF-1α) in mediating pulmonary angiogenesis and alveolarization, the cell-specific role of HIF-1α remains incompletely understood. Thus, we hypothesized that HIF-1α, in a distinct subset of mesenchymal cells, mediates postnatal alveolarization. To test the hypothesis, we generated mice with a cell-specific deletion of HIF-1α by crossing SM22α promoter-driven Cre mice with HIF-1αflox/flox mice (SM22α-HIF-1α-/-), determined SM-22α-expressing cell identity using single-cell RNA sequencing, and interrogated samples from preterm infants. Deletion of HIF-1α in SM22α-expressing cells had no effect on lung structure at day 3 of life. However, at 8 days, there were fewer and larger alveoli, a difference that persisted into adulthood. Microvascular density, elastin organization, and peripheral branching of the lung vasculature were decreased in SM22α-HIF-1α-/- mice, compared with control mice. Single-cell RNA sequencing demonstrated that three mesenchymal cell subtypes express SM22α: myofibroblasts, airway smooth muscle cells, and vascular smooth muscle cells. Pulmonary vascular smooth muscle cells from SM22α-HIF-1α-/- mice had decreased angiopoietin-2 expression and, in coculture experiments, a diminished capacity to promote angiogenesis that was rescued by angiopoietin-2. Angiopoietin-2 expression in tracheal aspirates of preterm infants was inversely correlated with overall mechanical ventilation time, a marker of disease severity. We conclude that SM22α-specific HIF-1α expression drives peripheral angiogenesis and alveolarization in the lung, perhaps by promoting angiopoietin-2 expression.
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Affiliation(s)
- Elizabeth A. Barnes
- Division of Pulmonary, Asthma, and Sleep Medicine, Center for Excellence in Pulmonary Biology, and
| | - Carsten Knutsen
- Division of Pulmonary, Asthma, and Sleep Medicine, Center for Excellence in Pulmonary Biology, and
- Division of Pediatric Critical Care Medicine, Department of Pediatrics, Stanford University School of Medicine, Stanford, California
| | - Alida Kindt
- Metabolomics and Analytics Centre, Leiden Academic Centre for Drug Research, Leiden University, Leiden, the Netherlands; and
| | - Xibing Che
- Division of Pulmonary, Asthma, and Sleep Medicine, Center for Excellence in Pulmonary Biology, and
| | - Lihua Ying
- Division of Pulmonary, Asthma, and Sleep Medicine, Center for Excellence in Pulmonary Biology, and
| | - Eloa Adams
- Division of Pulmonary, Asthma, and Sleep Medicine, Center for Excellence in Pulmonary Biology, and
| | - Erika Gonzalez
- Comprehensive Pneumology Center, Ludwig Maximilian University of Munich, Munich, Germany
| | - Prajakta Oak
- Comprehensive Pneumology Center, Ludwig Maximilian University of Munich, Munich, Germany
| | - Anne Hilgendorff
- Comprehensive Pneumology Center, Ludwig Maximilian University of Munich, Munich, Germany
| | - Cristina M. Alvira
- Division of Pulmonary, Asthma, and Sleep Medicine, Center for Excellence in Pulmonary Biology, and
- Division of Pediatric Critical Care Medicine, Department of Pediatrics, Stanford University School of Medicine, Stanford, California
| | - David N. Cornfield
- Division of Pulmonary, Asthma, and Sleep Medicine, Center for Excellence in Pulmonary Biology, and
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Zanini F, Che X, Knutsen C, Liu M, Suresh NE, Domingo-Gonzalez R, Dou SH, Zhang D, Pryhuber GS, Jones RC, Quake SR, Cornfield DN, Alvira CM. Developmental diversity and unique sensitivity to injury of lung endothelial subtypes during postnatal growth. iScience 2023; 26:106097. [PMID: 36879800 PMCID: PMC9984561 DOI: 10.1016/j.isci.2023.106097] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Revised: 12/20/2022] [Accepted: 01/25/2023] [Indexed: 02/01/2023] Open
Abstract
At birth, the lung is still immature, heightening susceptibility to injury but enhancing regenerative capacity. Angiogenesis drives postnatal lung development. Therefore, we profiled the transcriptional ontogeny and sensitivity to injury of pulmonary endothelial cells (EC) during early postnatal life. Although subtype speciation was evident at birth, immature lung EC exhibited transcriptomes distinct from mature counterparts, which progressed dynamically over time. Gradual, temporal changes in aerocyte capillary EC (CAP2) contrasted with more marked alterations in general capillary EC (CAP1) phenotype, including distinct CAP1 present only in the early alveolar lung expressing Peg3, a paternally imprinted transcription factor. Hyperoxia, an injury that impairs angiogenesis induced both common and unique endothelial gene signatures, dysregulated capillary EC crosstalk, and suppressed CAP1 proliferation while stimulating venous EC proliferation. These data highlight the diversity, transcriptomic evolution, and pleiotropic responses to injury of immature lung EC, possessing broad implications for lung development and injury across the lifespan.
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Affiliation(s)
- Fabio Zanini
- Prince of Wales Clinical School, Lowy Cancer Research Centre, University of New South Wales, Sydney, Kensington, NSW 2052, Australia
| | - Xibing Che
- Center for Excellence in Pulmonary Biology, Stanford University School of Medicine, Stanford, CA 94305, USA
- Division of Pulmonary, Asthma and Sleep Medicine, Department of Pediatrics, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Carsten Knutsen
- Center for Excellence in Pulmonary Biology, Stanford University School of Medicine, Stanford, CA 94305, USA
- Division of Critical Care Medicine, Department of Pediatrics, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Min Liu
- Center for Excellence in Pulmonary Biology, Stanford University School of Medicine, Stanford, CA 94305, USA
- Division of Critical Care Medicine, Department of Pediatrics, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Nina E. Suresh
- Center for Excellence in Pulmonary Biology, Stanford University School of Medicine, Stanford, CA 94305, USA
- Division of Pulmonary, Asthma and Sleep Medicine, Department of Pediatrics, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Racquel Domingo-Gonzalez
- Center for Excellence in Pulmonary Biology, Stanford University School of Medicine, Stanford, CA 94305, USA
- Division of Critical Care Medicine, Department of Pediatrics, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Steve H. Dou
- Center for Excellence in Pulmonary Biology, Stanford University School of Medicine, Stanford, CA 94305, USA
- Division of Critical Care Medicine, Department of Pediatrics, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Daoqin Zhang
- Center for Excellence in Pulmonary Biology, Stanford University School of Medicine, Stanford, CA 94305, USA
- Division of Critical Care Medicine, Department of Pediatrics, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Gloria S. Pryhuber
- Division of Neonatology, Department of Pediatrics, University of Rochester Medical Center, Rochester, NY 14642, USA
| | - Robert C. Jones
- Department of Bioengineering, Stanford University, Stanford, CA 94305, USA
| | - Stephen R. Quake
- Department of Bioengineering, Stanford University, Stanford, CA 94305, USA
- Chan Zuckerberg Biohub, San Francisco, CA 94158, USA
- Department of Applied Physics, Stanford University, Stanford, CA 94305, USA
| | - David N. Cornfield
- Center for Excellence in Pulmonary Biology, Stanford University School of Medicine, Stanford, CA 94305, USA
- Division of Pulmonary, Asthma and Sleep Medicine, Department of Pediatrics, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Cristina M. Alvira
- Center for Excellence in Pulmonary Biology, Stanford University School of Medicine, Stanford, CA 94305, USA
- Division of Critical Care Medicine, Department of Pediatrics, Stanford University School of Medicine, Stanford, CA 94305, USA
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Long Y, Chen H, Deng J, Ning J, Yang P, Qiao L, Cao Z. Deficiency of endothelial FGFR1 alleviates hyperoxia-induced bronchopulmonary dysplasia in neonatal mice. Front Pharmacol 2022; 13:1039103. [PMID: 36467073 PMCID: PMC9716472 DOI: 10.3389/fphar.2022.1039103] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Accepted: 11/02/2022] [Indexed: 07/30/2023] Open
Abstract
Disrupted neonatal lung angiogenesis and alveologenesis often give rise to bronchopulmonary dysplasia (BPD), the most common chronic lung disease in children. Hyperoxia-induced pulmonary vascular and alveolar damage in premature infants is one of the most common and frequent factors contributing to BPD. The purpose of the present study was to explore the key molecules and the underlying mechanisms in hyperoxia-induced lung injury in neonatal mice and to provide a new strategy for the treatment of BPD. In this work, we reported that hyperoxia decreased the proportion of endothelial cells (ECs) in the lungs of neonatal mice. In hyperoxic lung ECs of neonatal mice, we detected upregulated fibroblast growth factor receptor 1 (FGFR1) expression, accompanied by upregulation of the classic downstream signaling pathway of activated FGFR1, including the ERK/MAPK signaling pathway and PI3K-Akt signaling pathway. Specific deletion of Fgfr1 in the ECs of neonatal mice protected the lungs from hyperoxia-induced lung injury, with improved angiogenesis, alveologenesis and respiratory metrics. Intriguingly, the increased Fgfr1 expression was mainly attributed to aerosol capillary endothelial (aCap) cells rather than general capillary endothelial (gCap) cells. Deletion of endothelial Fgfr1 increased the expression of gCap cell markers but decreased the expression of aCap cell markers. Additionally, inhibition of FGFR1 by an FGFR1 inhibitor improved alveologenesis and respiratory metrics. In summary, this study suggests that in neonatal mice, hyperoxia increases the expression of endothelial FGFR1 in lung ECs and that deficiency of endothelial Fgfr1 can ameliorate hyperoxia-induced BPD. These data suggest that FGFR1 may be a potential therapeutic target for BPD, which will provide a new strategy for the prevention and treatment of BPD.
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Affiliation(s)
| | | | | | | | | | - Lina Qiao
- *Correspondence: Lina Qiao, ; Zhongwei Cao,
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