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Table 2 The heterogeneity of adipose precursors revealed by scRNA-seq analysis

From: Characteristic and fate determination of adipose precursors during adipose tissue remodeling

Author

Species

Sample

Pre-processing

Population

Markers

Definition or function

Merrick et al

(Merrick et al. 2019)

Mouse

IngWAT

CD45-

Group 1

Dpp4+ , Wnt2+ , Bmp7+ , Pi16+ 

Interstitial progenitors (produce ICAM1+ and CD142+ preadipocytes)

Group 2

Icam1+ , Pref1+ , Pparg+ , Fabp4+ , Cd36+ 

Committed preadipocytes

Group 3

Cd142+ , Clec11a+ , Fmo2+ 

Another preadipocytes

Human obese

sWAT

CD45-

Group 1

DPP4+ , CD55+ , WNT2+ 

Comparable to murine group 1 cells

Group 2

ICAM1+ , PPARG+ , GGT5+ 

Comparable to murine group 2 cells and group 3 cells

Vijay et al

(Vijay et al. 2020)

Human obese

sWAT

CD45-

CD34+ 

CD31-

SP1 and SP3

MGP+ , APOD+ , CXCL14+ , WISP2+ 

Preadipocytes/adipose stem cells

SP2

APOE+ , FABP4+ , CEBPB+ , CD36+ 

More mature adipocytes progenitor cells

SP4

COL3A1+ , COL6A3+ , COL1A1+ , COL6A1+ 

Fibrosis and extra cellular matrix accumulation

vWAT

CD45-

CD34+ 

CD31-

VP4

APOD+ , CXCL14+ , DPT+ , GPX3+ , MGP+ , EIF1+ , C1S+ and ADH1B+ 

Similar to SP1 and SP3

VP5

MFAP5+ , S100A4+ 

Adipose tissue remodeling; inhibition of adipogenesis

Oguri et al

(Oguri et al. 2020)

Mouse

iBAT, IngWAT, EpiWAT

Lin- stromal cells

Types I

Pdgfra+ , Akt2+ , Wnt4+ 

Not mentioned

Type II

Pdgfrb+ , Cspg4+ , Ednrb+ 

An endothelial signature

Type III

Cd81+ , Pdgfra+ , Sm22+ , Acta2+ 

From IngWAT; contribute to de novo beige adipogenesis

Types IV

Pdgfra+ , Mmp3+ 

Not mentioned

Types V

Pdgfra+ , Atf6+ , Acot2+ 

Not mentioned

Emont et al

(Emont et al. 2022)

Mouse

IngWAT and EpiWAT of mice fed ND or HFD

stromal vascular fractions

mASPC1

Pdgfra+ , Pde11a+ 

Not mentioned

mASPC2

Pdgfra+ , Aldh1a3+ 

Early progenitor cells; more abundant in IngWAT than EpiWAT; differentiate into mASPC6 upon HFD

mASPC3

Pdgfra+ , Mgp+ 

Not mentioned

mASPC4

Pdgfra+ , Epha3+ 

Not mentioned

mASPC5

Pdgfra+ , Tenm3+ 

More prevalent in EpiWAT versus IngWAT

mASPC6

Pdgfra+ , Frem1+ 

More prevalent in EpiWAT versus IngWAT, increase markedly in response to HFD in PG

Human

sWAT and vWAT

hASPC1

PDGFRA+ , CEBPD+ 

More prevalent in sWAT than vWAT

hASPC2

PDGFRA+ , ALDH1A3+ 

Not mentioned

hASPC3

PDGFRA+ , FGF10+ 

More abundant in vWAT

hASPC4

PDGFRA+ , EPHA3+ 

More abundant in sWAT than vWAT; increases in sWAT in subjects with higher BMI

hASPC5

PDGFRA+ , SGCZ+ 

More abundant in sWAT than vWAT; increases in sWAT in subjects with higher BMI

hASPC6

PDGFRA+ , PDE4D+ 

More prevalent in vWAT

Burl et al

(Burl et al. 2018)

Mouse

IngWAT and EpiWAT of control and CL316243 (β3-adrenoceptor agonists)-treated mice

Lin- stromal cells

ASC1

Pdgfra+ , Sca1+ , Icam1+ , Col4a2+ 

Adipocyte stem cell group 1

ASC2

Pdgfra+ , Sca1+ , Pi16+ , Dpp4+ 

Adipocyte stem cell group 2; more prevalent in IngWAT

Diff.ASC

Plin1+ , Car3+ , Cebpa+ 

Differentiating adipocyte stem cells; CL316243-induced clusters in EpiWAT

Pro.ASC

Genes that positively regulate cell cycle

Proliferating adipocyte stem cells; CL316243-induced new clusters in IngWAT and EpiWAT

Hepler et al

(Hepler et al. 2018)

Mouse

EpiWAT

PDGFRβ+ 

APCs

Ly6c-, Cd9-

Adipocyte precursor cells

FIPs

Ly6c+ , Cd9+ 

Fibro-inflammatory progenitors

MLCs

Ly6c+ , Cd9-

Mesothelial-like cells

Schwalie et al

(Schwalie et al. 2018)

Mouse

IngWAT

Lin-

CD29+ 

CD34+ 

Sca1+ 

G1/G4 (P1)

Cd55+ , Il13ra+ 

Adipose stem cells

G2 (P2)

Vap1+ , Adam12+ 

Preadipocytes

G3 (P3)

Cd142+ , Abcg1+ 

Adipogenesis-regulatory cells; inhibit adipogenesis

Cho et al

(Cho et al. 2019)

Mouse

EpiWAT of mice fed ND or HFD

Sca1+ 

CD45-

CD31-

Ter119-

Cluster1

CD55high/CD81low

More primitive, undifferentiated ASCs

Cluster5

CD55high/CD81high

More primitive, undifferentiated ASCs

Cluster2

CD55low/CD9low−mid/CD81low

Committed preadipocytes

Cluster4

CD55low/CD9low−mid/CD81high

Committed preadipocytes

Cluster6

CD55low/CD9high

Committed preadipocytes

Nahmgoong et al

(Nahmgoong et al. 2022)

Mouse

IngWAT and EpiWAT of mice fed ND or HFD

Lin- (CD31- and CD45-)

stromal vascular fractions

EN1 and IN1–IN4

Dpp4+ 

Multipotent ASCs expressing BMPs

EN2–EN3 and IN5

Dpp4+ , Icam1+ , Cebpd+ 

Early committed preadipocytes

EN4 and IN6–IN7

Icam1+ , Fabp4+ 

Late committed preadipocytes

  1. The table summarizes the populations of adipose precursors obtained by scRNA-seq analysis
  2. sWAT Subcutaneous white adipose tissue, vWAT Visceral white adipose tissue, iBAT Interscapular brown adipose tissue, IngWAT Inguinal white adipose tissue, EpiWAT Epididymal white adipose tissue, PG Perigonadal adipose tissue, SP sWAT progenitor, VP vWAT progenitor, ASPC Adipose stem and progenitor cell, ASCs Adipocyte stem cells, APCs Adipocyte precursor cells, FIPs Fibro-inflammatory progenitors, MLCs Mesothelial-like cells, ND Normal diet, HFD High fat diet