Abstract
Purpose
Necrotizing enterocolitis (NEC) causes fatal intestinal necrosis in neonates, but its etiology is unknown. We analyzed the intestinal immune response to NEC.
Methods
Using single-cell RNA sequencing (scRNA-seq), we analyzed the gene expression profiles of intestinal immune cells from four neonates with intestinal perforation (two with NEC and two without NEC). Target mononuclear cells were extracted from the lamina propria of the resected intestines.
Results
In all four cases, major immune cells, such as T cells (15.1–47.7%), B cells (3.1–19.0%), monocytes (16.5–31.2%), macrophages (1.6–17.4%), dendritic cells (2.4–12.2%), and natural killer cells (7.5–12.8%), were present in similar proportions to those in the neonatal cord blood. Gene set enrichment analysis showed that the MTOR, TNF-α, and MYC signaling pathways were enriched in T cells of the NEC patients, suggesting upregulated immune responses related to inflammation and cell proliferation. In addition, all four cases exhibited a bias toward cell-mediated inflammation, based on the predominance of T helper 1 cells.
Conclusion
Intestinal immunity in NEC subjects exhibited stronger inflammatory responses compared to non-NEC subjects. Further scRNA-seq and cellular analysis may improve our understanding of the pathogenesis of NEC.
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Data availability
Original dataset of this article is available after requesting the corresponding author.
References
Neu J, Walker WA (2011) Necrotizing enterocolitis. N Engl J Med 364:255–264
Okuyama H, Kubota A, Oue T, Kuroda S, Ikegami R, Kamiyama M (2002) A comparison of the clinical presentation and outcome of focal intestinal perforation and necrotizing enterocolitis in very-low-birth-weight neonates. Pediatr Surg Int 18:704–706
Shah J, Singhal N, da Silva O, Rouvinez-Bouali N, Seshia M, Lee SK, Shah PS (2015) Intestinal perforation in very preterm neonates: risk factors and outcomes. J Perinatol Off J Calif Perinat Assoc 35:595–600
Adams-Chapman I (2018) Necrotizing enterocolitis and neurodevelopmental outcome. Clin Perinatol 45:453–466
Hickey M, Georgieff M, Ramel S (2018) Neurodevelopmental outcomes following necrotizing enterocolitis. Semin Fetal Neonatal Med 23:426–432
Amin SC, Pappas C, Iyengar H, Maheshwari A (2013) Short bowel syndrome in the NICU. Clin Perinatol 40:53–68
Nowicki PT (2005) Ischemia and necrotizing enterocolitis: where, when, and how. Semin Pediatr Surg 14:152–158
Chen Y, Chang KT, Lian DW, Lu H, Roy S, Laksmi NK, Low Y, Krishnaswamy G, Pierro A, Ong CC (2016) The role of ischemia in necrotizing enterocolitis. J Pediatr Surg 51:1255–1261
Patel RM, Underwood MA (2018) Probiotics and necrotizing enterocolitis. Semin Pediatr Surg 27:39–46
Neu J, Pammi M (2018) Necrotizing enterocolitis: the intestinal microbiome, metabolome and inflammatory mediators. Semin Fetal Neonatal Med 23:400–405
Schreurs R, Baumdick ME, Sagebiel AF, Kaufmann M, Mokry M, Klarenbeek PL, Schaltenberg N, Steinert FL, van Rijn JM, Drewniak A, The SML, Bakx R, Derikx JPM, de Vries N, Corpeleijn WE, Pals ST, Gagliani N, Friese MA, Middendorp S, Nieuwenhuis EES, Reinshagen K, Geijtenbeek TBH, van Goudoever JB, Bunders MJ (2019) Human fetal TNF-α-cytokine-producing CD4(+) effector memory T cells promote intestinal development and mediate inflammation early in life. Immunity 50:462-476.e468
Denning TL, Bhatia AM, Kane AF, Patel RM, Denning PW (2017) Pathogenesis of NEC: role of the innate and adaptive immune response. Semin Perinatol 41:15–28
Shi N, Li N, Duan X, Niu H (2017) Interaction between the gut microbiome and mucosal immune system. Mil Med Res 4:14
Zhang X, Zhivaki D, Lo-Man R (2017) Unique aspects of the perinatal immune system. Nat Rev Immunol 17:495–507
Patman G (2016) Paediatrics: T cells in necrotizing enterocolitis. Nat Rev Gastroenterol Hepatol 13:63
Sawa S, Cherrier M, Lochner M, Satoh-Takayama N, Fehling HJ, Langa F, Di Santo JP, Eberl G (2010) Lineage relationship analysis of RORgammat+ innate lymphoid cells. Science (New York, NY) 330:665–669
Yu JC, Khodadadi H, Malik A, Davidson B, Salles ÉDSL, Bhatia J, Hale VL, Baban B (2018) Innate immunity of neonates and infants. Front Immunol 9:1759
MohanKumar K, Namachivayam K, Ho TT, Torres BA, Ohls RK, Maheshwari A (2017) Cytokines and growth factors in the developing intestine and during necrotizing enterocolitis. Semin Perinatol 41:52–60
Mara MA, Good M, Weitkamp JH (2018) Innate and adaptive immunity in necrotizing enterocolitis. Semin Fetal Neonatal Med 23:394–399
Senger S, Ingano L, Freire R, Anselmo A, Zhu W, Sadreyev R, Walker WA, Fasano A (2018) Human fetal-derived enterospheres provide insights on intestinal development and a novel model to study necrotizing enterocolitis (NEC). Cell Mol Gastroenterol Hepatol 5:549–568
Hodzic Z, Bolock AM, Good M (2017) The role of mucosal immunity in the pathogenesis of necrotizing enterocolitis. Front Pediatr 5:40
Stuart T, Butler A, Hoffman P, Hafemeister C, Papalexi E, Mauck WM 3rd, Hao Y, Stoeckius M, Smibert P, Satija R (2019) Comprehensive Integration of single-cell data. Cell 177:1888-1902.e1821
Aran D, Looney AP, Liu L, Wu E, Fong V, Hsu A, Chak S, Naikawadi RP, Wolters PJ, Abate AR, Butte AJ, Bhattacharya M (2019) Reference-based analysis of lung single-cell sequencing reveals a transitional profibrotic macrophage. Nat Immunol 20:163–172
Mabbott NA, Baillie JK, Brown H, Freeman TC, Hume DA (2013) An expression atlas of human primary cells: inference of gene function from coexpression networks. BMC Genomics 14:632
Subramanian A, Tamayo P, Mootha VK, Mukherjee S, Ebert BL, Gillette MA, Paulovich A, Pomeroy SL, Golub TR, Lander ES, Mesirov JP (2005) Gene set enrichment analysis: a knowledge-based approach for interpreting genome-wide expression profiles. Proc Natl Acad Sci USA 102:15545–15550
Prabhu SB, Rathore DK, Nair D, Chaudhary A, Raza S, Kanodia P, Sopory S, George A, Rath S, Bal V, Tripathi R, Ramji S, Batra A, Aggarwal KC, Chellani HK, Arya S, Agarwal N, Mehta U, Natchu UC, Wadhwa N, Bhatnagar S (2016) Comparison of human neonatal and adult blood leukocyte subset composition phenotypes. PLoS One 11:e0162242
Szabo PA, Levitin HM, Miron M, Snyder ME, Senda T, Yuan J, Cheng YL, Bush EC, Dogra P, Thapa P, Farber DL, Sims PA (2019) Single-cell transcriptomics of human T cells reveals tissue and activation signatures in health and disease. Nat Commun 10:4706
Mousset CM, Hobo W, Woestenenk R, Preijers F, Dolstra H, van der Waart AB (2019) Comprehensive phenotyping of T cells using flow cytometry. Cytom Part A J Int Soc Anal Cytol 95:647–654
Caccamo N, Joosten SA, Ottenhoff THM, Dieli F (2018) Atypical human effector/memory CD4(+) T cells with a naive-like phenotype. Front Immunol 9:2832
Zhu X, Zhu J (2020) CD4 T helper cell subsets and related human immunological disorders. Int J Mol Sci 21(21):8011
Egan CE, Sodhi CP, Good M, Lin J, Jia H, Yamaguchi Y, Lu P, Ma C, Branca MF, Weyandt S, Fulton WB, Niño DF, Prindle T Jr, Ozolek JA, Hackam DJ (2016) Toll-like receptor 4-mediated lymphocyte influx induces neonatal necrotizing enterocolitis. J Clin Investig 126:495–508
Ma F, Li S, Gao X, Zhou J, Zhu X, Wang D, Cai Y, Li F, Yang Q, Gu X, Ge W, Liu H, Xiao X, Hao H (2019) Interleukin-6-mediated CCR9(+) interleukin-17-producing regulatory T cells polarization increases the severity of necrotizing enterocolitis. EBioMedicine 44:71–85
Melchers F (2015) Checkpoints that control B cell development. J Clin Investig 125:2203–2210
Oleinika K, Mauri C, Salama AD (2019) Effector and regulatory B cells in immune-mediated kidney disease. Nat Rev Nephrol 15:11–26
Kapellos TS, Bonaguro L, Gemünd I, Reusch N, Saglam A, Hinkley ER, Schultze JL (2019) Human monocyte subsets and phenotypes in major chronic inflammatory diseases. Front Immunol 10:2035
Cormican S, Griffin MD (2020) Human monocyte subset distinctions and function: insights from gene expression analysis. Front Immunol 11:1070
Chinetti-Gbaguidi G, Colin S, Staels B (2015) Macrophage subsets in atherosclerosis. Nat Rev Cardiol 12:10–17
Glezeva N, Horgan S, Baugh JA (2015) Monocyte and macrophage subsets along the continuum to heart failure: Misguided heroes or targetable villains? J Mol Cell Cardiol 89:136–145
Ahmed I, Ismail N (2020) M1 and M2 macrophages polarization via mTORC1 influences innate immunity and outcome of ehrlichia infection. J Cell Immunol 2:108–115
Gardner A, Ruffell B (2016) Dendritic cells and cancer immunity. Trends Immunol 37:855–865
Nutt SL, Chopin M (2020) Transcriptional networks driving dendritic cell differentiation and function. Immunity 52:942–956
Yang C, Siebert JR, Burns R, Gerbec ZJ, Bonacci B, Rymaszewski A, Rau M, Riese MJ, Rao S, Carlson KS, Routes JM, Verbsky JW, Thakar MS, Malarkannan S (2019) Heterogeneity of human bone marrow and blood natural killer cells defined by single-cell transcriptome. Nat Commun 10:3931
Björkström NK, Strunz B, Ljunggren HG (2022) Natural killer cells in antiviral immunity. Nat Rev Immunol 22(2):112–123
Amorim A, De Feo D, Friebel E, Ingelfinger F, Anderfuhren CD, Krishnarajah S, Andreadou M, Welsh CA, Liu Z, Ginhoux F, Greter M, Becher B (2022) IFNγ and GM-CSF control complementary differentiation programs in the monocyte-to-phagocyte transition during neuroinflammation. Nat Immunol 23:217–228
Santarlasci V, Cosmi L, Maggi L, Liotta F, Annunziato F (2013) IL-1 and T helper immune responses. Front Immunol 4:182
Mahnke YD, Brodie TM, Sallusto F, Roederer M, Lugli E (2013) The who’s who of T-cell differentiation: human memory T-cell subsets. Eur J Immunol 43:2797–2809
Golubovskaya V, Wu L (2016) Different subsets of T cells, memory, effector functions, and CAR-T immunotherapy. Cancers 8(3):36
Acknowledgements
We would like to acknowledge all participating patients, their families, and the doctors who made this study possible. This work was supported by numerous grants and programs: the JSPS Grant-in-Aid for Scientific Research (B) Grant Number JP17H04235 for YT; the Grant-in-Aid for Young Scientists (B) Grant Number JP17K17000 for KO; the Grant-in-Aid for Challenging Research (Exploratory) Grant Number JP18K19503 for SS; the Joint Research Program of the Institute for Genetic Medicine in Hokkaido University for KO; the Cooperative Research Project Program of the Medical Institute of Bioregulation in Kyushu University for YT; and the Joint Research of the Exploratory Research Center on Life and Living Systems (ExCELLS) (program No. 19-308, 20-316) in the National Institutes of Natural Sciences for SS.
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KO, YT, YO, AH, HU and SS: wrote the main manuscript text and prepared figures. All authors reviewed the manuscript.
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Oshima, K., Hinoki, A., Uchida, H. et al. Single-cell RNA sequencing of intestinal immune cells in neonatal necrotizing enterocolitis. Pediatr Surg Int 39, 179 (2023). https://doi.org/10.1007/s00383-023-05461-7
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DOI: https://doi.org/10.1007/s00383-023-05461-7