Table 1 Summary of the application of organoids to study SARS-CoV-2

From: Human organoid models to study SARS-CoV-2 infection

 

Entry factor expression

Tropism

Host response

Therapeutic discovery

Small molecules

Antibodies/peptides

Vaccines

Respiratory organoids

ALOs

hPSC-ALOs

ACE2 in AT2 cells;

TMPRSS2 and FURIN widely expressed47,48,52,70

AT2 cells47,48

Apoptosis52;

upregulation of inflammatory, NF-κB signaling, and loss of the mature alveolar population50;

induction of chemokine, TNF signaling, IL-17 signaling and cytokine–cytokine receptor interaction pathways47

Remdesivir50,52; antiandrogenic drugs51; imatinib, mycophenolic acid and quinacrine dihydrochloride47; camostat/nafamostat48; 25HC54

Human neutralizing antibody52;

EK1 peptide48

 

Adult ALOs

ACE2 in AT2 cells59;

TMPRSS2 widely expressed55

AT2 and club cells55,56,59

Apoptosis59;

upregulation of type I/III interferon response55,56;

interferon-mediated inflammatory responses, loss of surfactant proteins, apoptosis57,67;

upregulation of epithelial cell-autonomous pro-inflammatory response67

Remdesivir58,67

  

AWOs

hPSC-AWOs

ACE2, NRP1 and TMPRSS2 in ciliated cells; FURIN and CTSL widely expressed52,60

Ciliated cells60 and club cells52

Apoptosis52;

downregulation of lipid metabolism52;

upregulation of glycolysis50

Remdesivir52; GW6471, xanthohumol, 5-(tetradecyloxy)-2-furoic acid and ND-646 (ref. 60)

Human neutralizing antibody52

 

Adult AWOs

ACE2 in ciliated cells60

 

Induction of ISGs, cytokines and chemokines62;

 

Humanized decoy antibody (ACE2-Fc)63

 

IOs

SIOs

hPSC-SLOs

ACE2 and TMPRSS2 in the gastrointestinal tract71

Enteroendocrine and paneth cells71

Apoptosis and a robust transcriptomic response, including ISGs71

Remdesivir71

Peptides or antibodies toward IFITM72

 

Adult SLOs

ACE2 in enterocytes75

Enterocytes75

Induction of cytokines and ISGs attributed to type I and III interferon responses75

   

COs

hPSC-COs

ACE2 in enterocytes47

Enterocytes47

Induction of cytokines and chemokines47

Imatinib, mycophenolic acid and quinacrine dihydrochloride47

  

Adult COs

ACE2 in enterocytes; TMPRSS2, FURIN and CTSL in COs77

Enterocytes75

Induction of pro-inflammatory pathway and interferon-mediated signaling pathway77

   

ILOs

Adult ILOs

ACE2 in enterocytes74,75; TMPRSS2, FURIN and CTSL in SLOs77

Enterocytes75

Induction of pro-inflammatory pathway and interferon-mediated signaling pathway77

   

KOs

hPSC-KOs

ACE2 and TMPRSS2 in kidney tubules82,116

  

MEDS433 (ref. 83)

Human soluble ACE2 (ref. 82) hrsACE2 (ref. 81)

 

LOs

hPSC-LOs

ACE2 in hepatocytes84

Hepatocytes84

Upregulation of cytokine–cytokine receptor interaction, IL-17 signaling, chemokine signaling pathway, TNF signaling and NF-κB signaling pathway; downregulation of cellular metabolism84

   

Adult LOs

ACE2 in cholangiocytes85;

TMPRSS2 is broadly expressed85

Hepatocytes84 and a subset of cholangiocytes85

Induction of cytokine–cytokine receptor interaction, IL-17 signaling, chemokine signaling pathway, TNF signaling and NF-κB signaling pathway84

Remdesivir63

rsACE2 (ref. 63)

 

BOs

hPSC-BOs

ACE2 is expressed, but low levels of TMPRSS2 were detected48

Limited infection in cortical astrocytes88

Innate immunity and neurodegeneration genes48;

distribution of Tau from axons to soma, and hyperphosphorylation and neuronal death90;

metabolic changes91

 

ACE2 antibodies91

 

hPSC-CPOs

ACE2 in mature choroid plexus cells94;

TMPRSS2 and NRP1 in CPOs88

Choroid plexus, astrocytes and radial glial progenitors93

Induction of type I interferon astrocytic response95;

cell death, inflammatory response and cellular function deficits88;

epithelial damage, leakage of blood–brain barrier94

   

TOs

Adult TOs

     

SARS-CoV-2 vaccine

ROs

hPSC-ROs

ACE2 and TMPRSS2 in hPSC-ROs98

     

Adult ROs

ACE2 and TMPRSS2 in cornea, limbus, sclera and retinal pigment epithelium99

Cornea, limbus, sclera and retinal pigment epithelium99

Host immune response, including NF-κB signaling pathway99

   

CDOs

hPSC-CDOs

  

Upregulation of pro-inflammatory factors, including IFN-γ, IL-1β and poly(I:C), drive systolic and diastolic cardiac dysfunction101

INCB054329 (ref. 101)

  

CAPOs

hPSC-CAPOs

    

hrsACE2 (ref. 81)

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