Downregulation of semaphorin 4A in keratinocytes reflects the features of non-lesional psoriasis

  1. Miki Kume
  2. Hanako Koguchi-Yoshioka
  3. Shuichi Nakai
  4. Yutaka Matsumura
  5. Atsushi Tanemura
  6. Kazunori Yokoi
  7. Shoichi Matsuda
  8. Yuumi Nakamura
  9. Naoya Otani
  10. Mifue Taminato
  11. Koichi Tomita
  12. Tateki Kubo
  13. Mari Wataya-Kaneda
  14. Atsushi Kumanogoh
  15. Manabu Fujimoto
  16. Rei Watanabe  Is a corresponding author
  1. Department of Dermatology, Course of Integrated Medicine, Graduate School of Medicine, Osaka University, Japan
  2. Department of Neurocutaneous Medicine, Division of Health Sciences, Graduate School of Medicine, Osaka University, Japan
  3. Research Department, Maruho Co, Ltd., Japan
  4. Cutaneous Allergy and Host Defense, Immunology Frontier Research Center (iFReC), Osaka University, Japan
  5. Department of Plastic Surgery, Course of Organ Regulation Medicine, Graduate School of Medicine, Osaka University, Japan
  6. Department of Plastic and Reconstructive Surgery, Kindai University, Japan
  7. Department of Respiratory Medicine and Clinical Immunology, Course of Internal Medicine, Graduate School of Medicine, Osaka University, Japan
  8. Department of Medicine for Cutaneous Immunological Diseases, Course of Integrated Medicine, Graduate School of Medicine, Osaka University, Japan
11 figures, 1 table and 6 additional files

Figures

Figure 1 with 2 supplements
Epidermal Sema4A expression is downregulated in psoriasis.

(A) UMAP plots, generated from single-cell RNA-sequencing data (GSE220116), illustrate cell distributions from control (Ctl) and psoriatic lesion (L) samples (n=10 for Ctl, n=11 for L). (B) Subclustering of immune cells. (C) SEMA4A expression in keratinocytes, dendritic cells, and macrophages. ****padj<0.001. NS, not significant. Analyzed using Python and cellxgene VIP. (D) Representative immunohistochemistry and magnified views showing Sema4A expression in Ctl, psoriatic non-lesion (NL), and L. Scale bar = 50 μm. (E) Mean epidermal (Epi) Sema4A intensity in immunohistochemistry (n=10 per group). Each dot represents the average intensity from 5 unit areas per sample. (F) Relative SEMA4A expression in Epi (n=10 for Ctl, n=7 for L and NL) and dermis (Derm, n=6 per group). (G) Proportions of Sema4A-expressing cells in blood CD4 T cells (left), CD8 T cells (middle), and monocytes (right) from Ctl and psoriatic (Pso) patients (n=13 per group in CD4 and CD8, n=11 for Ctl and n=13 for Pso in monocytes). (H) Serum Sema4A levels in Ctl (n=20) and Pso (n=60). (E–H) *p<0.05, **p<0.01, ****p<0.0001. NS, not significant. The error bars represent the standard deviation.

Figure 1—figure supplement 1
Sema4A is downregulated in the keratinocytes of lesional psoriasis in the single-cell RNA-sequencing data.

(A) Sample information for specimens from Ctl and psoriatic L (GSE220116). (B, C) Clusters of cells were identified by their expression patterns of signature genes. (D) The volcano plot displays changes in gene expression in psoriatic L compared to Ctl.

Figure 1—figure supplement 2
Gating strategy in flow cytometry.

Gating strategy for human Sema4A expression in blood cells. Large and small cells were distinguished using forward scatter (FCS) and side scatter (SSC) in a dot plot panel, with dead cells being excluded. Monocytes were defined within the live large cell population as CD11c positive. CD4 and CD8 T cells were identified within the live small cell population as CD3-positive CD4-positive and CD3-positive CD8-positive populations, respectively. The empty histogram represents the flow cytometry minus one control for Sema4A.

Figure 2 with 2 supplements
Imiquimod (IMQ)-induced psoriasis-like dermatitis is augmented in Sema4A knockout (KO) mice.

(A) Experimental scheme. Wild-type (WT, green) mice and Sema4A KO (black) mice were treated with 10 mg/ear of 5% IMQ for 4 consecutive days. Samples for flow cytometry analysis were collected on day 4. (B) Ear thickness of WT mice and KO mice on day 4 (n=15 per group). (C) Relative expression of Il17a in epidermis (n=5 per group). (D, E) The percentages of Vγ3, Vγ2, Vγ2-Vγ3-γδ (DNγδ), CD4, and CD8 T cells (D) and those with IL-17A production (E) in CD3 fraction in the Epi (top) and Derm (bottom) of WT and KO ears (n=6 per group, each dot represents the average of 4 ear specimens). (F) The percentages of IL-17A-producing γδ, CD4, and CD8 T cells in CD3 fraction in skin-draining lymph nodes (dLN) (n=9 per group). (B–F) *p<0.05, **p<0.01, ****p<0.0001. NS, not significant. The error bars represent the standard deviation.

Figure 2—figure supplement 1
Gating strategy in flow cytometry.

Gating strategy for murine T cells infiltrating the epidermis and dermis. After excluding dead cells, TCRγδ-positive T cells were evaluated for the expression of Vγ2. TCRγδ-positive Vγ2-negative population was further assessed the expression of Vγ3. The CD3-positive TCRγδ-negative population was evaluated for the expression of CD4 and CD8. Each population was analyzed for cytokine production. The empty histogram represents the isotype control for IL-17A.

Figure 2—figure supplement 2
IL-23-mediated psoriasis-like dermatitis is augmented in Sema4A knockout (KO) mice.

(A) An experimental scheme involved intradermally injecting 20 μL of phosphate-buffered saline containing 500 ng of recombinant mouse IL-23 into both ears of wild-type (WT) mice and KO mice for 4 consecutive days. Samples for following analysis were collected on day 4. (B, C) Ear thickness (B) and Epi and Derm thickness (C) of WT mice and KO mice on day 4 (n=12 per group). (D, E) The percentages of Vγ3, Vγ2, DNγδ, CD4, and CD8 T cells (D) and those with IL-17A production (E) in CD3 fraction in the Epi (top) and Derm (bottom) of WT and KO ears (n=5 per group). Each dot represents the average of 4 ear specimens. (B–E) *p<0.05, **p<0.01. NS, not significant. The error bars represent the standard deviation.

Figure 3 with 1 supplement
Sema4A in keratinocytes may play a role in preventing murine psoriasis-like dermatitis.

(A) Experimental scheme for establishing BM chimeric mice. (B) Imiquimod (IMQ) day 4 ear thickness in the mice with the indicated genotypes (n=14 for WT→WT, n=13 for WT→KO, n=9 for KO→WT, n=9 for KO→KO). (C) The percentages of IL-17A-producing Vγ3, Vγ2, DNγδ, CD4, and CD8 T cells in CD3 fraction from IMQ day 4 Epi (top) and Derm (bottom) of the ears from WT→ WT mice and WT→ KO mice (n=6 per group). Each dot represents the average of 4 ear specimens. (B, C) *p<0.05, **p<0.01, ****p<0.0001. NS, not significant. The error bars represent the standard deviation.

Figure 3—figure supplement 1
T cells’ fractions infiltrating in the chimeric mice ear.

(A) Sema4a expression in the Epi of WT→ WT mice and WT→ KO mice (n=8 for WT→ WT, n=7 for WT→ KO). (B) The percentages of Vγ3, Vγ2, DNγδ, CD4, and CD8 T cells in CD3 fraction from imiquimod (IMQ) day 4 Epi (top) and Derm (bottom) of the ears from WT→ WT mice and WT→ KO mice (n=6 per group). Each dot represents the average of 4 ear specimens. (A, B) *p<0.05, ***p<0.001. NS, not significant. The error bars represent the standard deviation.

Figure 4 with 3 supplements
Naïve Sema4A knockout (KO) epidermis is thicker than wild-type (WT) epidermis with increased γδ T17 infiltration.

(A) Ear thickness of WT mice and KO mice at week (Wk) 8 (n=15 per group) and representative images. (B) Left: representative hematoxylin and eosin staining of day 0 back and Wk 8 back and ear. Scale bar = 50 μm. Right: Epi and Derm thickness in day 0 back (n=5) and Wk 8 back (n=5) and ear (n=8). (C) Relative Sema4a expression in WT Epi and Derm (n=5 per group). (D) The percentages of the IL-17A-producing Vγ3, Vγ2, DNγδ, CD4, and CD8 T cells in CD3 fraction (n=4 per group) in Epi (top) and Derm (bottom). Each dot represents the average of 4 ear specimens. (E) The graphs showing the percentages of IL-17A-producing γδ, CD4, and CD8 T cells in CD3 fraction from draining LN (dLN) of WT mice and Sema4A KO mice (n=6 per group). (A–E) *p<0.05, **p<0.01, ****p<0.0001. NS, not significant. The error bars represent the standard deviation.

Figure 4—figure supplement 1
Naive Sema4A knockout (KO) skin shows upregulation of psoriasis-related genes and an increase in resident memory T cells.

(A) Relative expression of psoriasis-associated genes in Epi (top) and Derm (bottom) of wild-type (WT) mice and KO mice (n=5 per group, #: not detected). (B) Representative dot plots showing CD69 and CD103 expression in the indicated T cell fractions from whole skin. The graphs show T cell counts per ear (top) and those with resident memory phenotype (bottom) (n=7 per group). Each dot represents the average of 4 ear specimens. (A, B) *p<0.05, **p<0.01. NS, not significant. The error bars represent the standard deviation.

Figure 4—figure supplement 2
Expression of IFNγ and IL-4 is comparable between naive wild-type (WT) and Sema4A knockout (KO) skin.

(A) The percentages of Vγ3, Vγ2, DNγδ, CD4, and CD8 T cells in CD3 fraction from naive WT and KO mice. (B, C) The graphs presenting the percentages of IFNγ (B) and IL-4 (C) -producing Vγ2, DNγδ, CD4, and CD8 T cells in CD3 fraction in the Epi (top) and Derm (bottom) of naive WT mice and KO mice (n=4 per group). (A–C) Each dot represents the average of 4 ear specimens. *p<0.05. NS, not significant. The error bars represent the standard deviation.

Figure 4—figure supplement 3
Comparable T17 differentiation potential under Th17-skewing conditions between wild-type (WT) mice and Sema4A knockout (KO) mice.

Splenic T cells were cultured for 2 weeks, followed by flow cytometry analysis. The accumulated data display the percentages of IL-17A-producing (right) and IFNγ-producing (left) γδ, CD4, and CD8 T cells within CD3 fraction under various conditions: IL-23-dependent Th17-skewing condition (top), IL-23 only Th17-skewing condition (middle), and IL-23-independent Th17-skewing condition (bottom). NS, not significant. The error bars represent the standard deviation.

Figure 5 with 2 supplements
Sema4A knockout (KO) skin shares the features of human psoriatic non-lesions (NL).

(A, B) The volcano plot (A) and Gene Ontology (GO) analysis (B), generated from RNA-sequencing data (GSE121212) using RaNAseq, display changes in gene expression in psoriatic NL compared to Ctl. (C) The difference in the expression of epidermal differentiation markers between Ctl and NL (n=38 for Ctl, n=27 for NL) was calculated with the transcripts per million values. **padj<0.01. NS, not significant. The error bars represent the standard deviation. (D) Relative gene expression of epidermal differentiation markers between wk 8 Epi of wild-type (WT) mice and KO mice (n=5 for Krt14 and Krt16, n=8 for Krt5, Krt10, Filaggrin, and Loricrin). (E) Left: Representative immunofluorescence pictures of Krt5, Krt10, Krt14, and Krt16 (red) overlapped with DAPI. Scale bar = 50 μm. Right: Accumulated graphs showing the numbers of Krt5, Krt10, Krt14, and Krt16 positive cells per 100 μm width (n=5 per group) of wk 8 ear (right). Each dot represents the average from 5 unit areas per sample. (F) Transepidermal water loss (TEWL) in back skin of WT mice and KO mice at wk 8 (n=5 per group). (D–F) *p<0.05, **p<0.01. NS, not significant. The error bars represent the standard deviation.

Figure 5—figure supplement 1
The epidermis of psoriatic non-lesion is thicker than that of control skin.

Epidermal thickness of Ctl and psoriatic non-lesions (NL) (n=10 per group). ***p<0.001. The error bars represent the standard deviation.

Figure 5—figure supplement 2
Upregulation of cytokeratin expression related to psoriasis is not detected at birth in Sema4A knockout (KO) mice.

Representative immunofluorescence pictures of Krt5, Krt10, Krt14, and Krt16 (red) overlapped with DAPI, and the accumulated graphs showing the numbers of Krt5, Krt10, Krt14, and Krt16 positive cells per 100 μm width (n=5 per group) in the epidermis of day 0 back. Scale bar = 50 μm. Each dot represents the average from 5 unit areas per sample. NS, not significant. The error bars represent the standard deviation.

mTOR signaling is upregulated in the epidermis of psoriatic non-lesions (NL) and Sema4A knockout (KO) mice.

(A) Representative results of immunohistochemistry displaying cells positive for phospho-S6 (p-S6) (Ser235/236), S6, phospho-Akt (p-Akt) (Ser473), and Akt in Ctl, NL, and L. The graphs of accumulated data show the mean intensity of p-S6 and S6 in the upper and lower epidermal layers (n=9 per group). Scale bar = 100 μm. Each dot represents the average mean intensity from 5 unit areas per sample. (B) The mean intensity of p-S6 (Ser235/236) and p-Akt (Ser473), detected by immunohistochemistry in the epidermis of wild-type (WT) mice and KO mice, were analyzed. Scale bar = 50 μm. Each dot represents the average intensity from 5 unit areas per sample (n=8 per group). (C, D) Immunoblotting of p-S6 (Ser235/236), S6, p-Akt (Ser473), and Akt in tissue lysates from epidermis without treatment (C) and with imiquimod (IMQ) treatment for consecutive 4 days (D) (n=5 per group, except for p-Akt and Akt in C, for which n=4). (A–D) *p<0.05, **p<0.01. NS, not significant. The error bars represent the standard deviation.

Figure 7 with 2 supplements
Inhibitors of mTOR signaling modulate the expression of cytokeratins in Sema4A knockout (KO) mice.

(A, B) Epidermal thickness of Sema4A KO mice treated intraperitoneally with vehicle (Ctl) or rapamycin (A), and Ctl or JR-AB2-011 (B) (n=5 per group). (C, D) Relative expression of keratinocyte differentiation markers and Il17a in Sema4A KO Epi (C), and the number of T cells in Epi and Derm under Ctl or rapamycin (D) (n=5 per group). (E, F) Relative expression of keratinocyte differentiation markers and Il17a in Sema4A KO Epi (E), and the number of T cells in Epi and Derm under Ctl or JR-AB2-011 (F) (n=5 per group). (D and F) Each dot represents the sum of numbers from 10 unit areas across 3 specimens. (A–F) *p<0.05, **p<0.01. NS, not significant. The error bars represent the standard deviation.

Figure 7—figure supplement 1
Topical application of rapamycin gel yields partially similar results to intraperitoneal treatment.

(A) Comparison of Epi thickness between vehicle (Ctl) gel-treated right ears and rapamycin gel-treated left ears of Sema4A knockout (KO) mice (n=10 per group). (B) Relative expression of keratinocyte differentiation markers and Il17a in Sema4A KO Epi under Ctl gel or rapamycin gel treatments (n=5 per group). (C) The number of T cells in the Epi (left) and Derm (right), under Ctl gel or rapamycin gel treatments (n=5 per group). Each dot represents the sum of numbers from 10 unit areas across 3 specimens. (A–C) *p<0.05, **p<0.01. NS, not significant. The error bars represent the standard deviation.

Figure 7—figure supplement 2
Rapamycin treatment reduced the epidermal swelling observed in imiquimod (IMQ)-treated Sema4A knockout (KO) mice.

(A) Experimental scheme. (B) The Epi thickness on day 18 (n=10 for Ctl, n=12 for rapamycin). (C) Relative expression of keratinocyte differentiation markers and Il17a in Sema4A KO Epi (n=10 for Ctl, n=12 for rapamycin). (D) The number of T cells in the Epi (left) and Derm (right), under Ctl or rapamycin and IMQ treatments (n=10 for Ctl, n=12 for rapamycin). Each dot represents the sum of numbers from 10 unit areas across 3 specimens. (A–C) *p<0.05, **p<0.01. NS, not significant. The error bars represent the standard deviation.

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Tables

Appendix 1—key resources table
Reagent type (species) or resourceDesignationSource or referenceIdentifiersAdditional information
Strain, strain background (Mus musculus)C57BL/6J WT miceCLEA Japan
Strain, strain background (M. musculus)Semaphorin 4A knockout miceDr. Atsushi Kumanogoh (Osaka University, Osaka, Japan)
Biological sample (Homo sapiens)Skin specimens from 17 psoriasis patientsOsaka University
Biological sample (H. sapiens)Skin specimens from 19 subjects who underwent tumor resection or reconstructive surgeryOsaka University
Biological sample (H. sapiens)Blood samples from 73 psoriasis patientsOsaka University
Biological sample (H. sapiens)Blood samples from 33 CtlOsaka University
AntibodySema4A (Rabbit polyclonal)AbcamCat# Ab70178;
RRID:AB_1270611
IHC (1:100)
AntibodyPhospho-S6 (Ser235/236) (Rabbit monoclonal)Cell Signaling TechnologyCat# 4858;
RRID:AB_916156
IHC (1:400), WB (1:2000)
AntibodyS6 (Rabbit monoclonal)Cell Signaling TechnologyCat# 2217;
RRID:AB_331355
IHC (1:100), WB (1:1000)
AntibodyPhospho-Akt (Ser473) (Rabbit monoclonal)Cell Signaling TechnologyCat# 4060;
RRID:AB_2315049
IHC (1:50), WB (1:1000)
AntibodyAkt (Rabbit monoclonal)Cell Signaling TechnologyCat# 4691;
RRID:AB_915783
IHC (1:300), WB (1:1000)
AntibodyKeratin 5 (Rabbit polyclonal)BioLegendCat# 905503;
RRID:AB_2734679
IF (1:800)
AntibodyKeratin 10 (Rabbit polyclonal)BioLegendCat# 905403;
RRID:AB_2749902
IF (1:400)
AntibodyKeratin 14 (Rabbit polyclonal)BioLegendCat# 905303;
RRID:AB_2734678
IF (1:400)
AntibodyCytokeratin 16 (Rabbit monoclonal)InvitrogenCat# MA5-42892;
RRID:AB_2912033
IF (1:100)
AntibodyCD3 (Rat monoclonal)Bio-RadCat# MCA1477;
RRID:AB_321245
IF (1:100)
AntibodyRabbit IgG H&L (Alexa Fluor 555) (Donkey polyclonal)AbcamCat# ab150074;
RRID:AB_2636997
IF (1:1000)
AntibodyRat IgG H&L (Alexa Fluor 555) (Donkey polyclonal)AbcamCat# ab150154;
RRID:AB_2813834
IF (1:1000)
Antibodyβ-Actin (Mouse monoclonal)Sigma-AldrichCat# A5441;
RRID:AB_476744
WB (1:5000)
AntibodyAnti-Mouse IgG, HRP-Linked
Whole Ab (Sheep monoclonal secondary)
CytivaCat# NA931;
RRID:AB_772210
WB (1:10,000)
AntibodyAnti-Rabbit IgG, HRP-Linked
Whole Ab (Donkey polyclonal secondary)
CytivaCat# NA934;
RRID:AB_772206
WB (1:10,000)
AntibodyCD3 (Mouse monoclonal)BioLegendCat# 317335;
RRID:AB_2561627
FCM (1:100)
AntibodyCD4 (Mouse monoclonal)BioLegendCat# 300512;
RRID:AB_314080
FCM (1:100)
AntibodyCD8a (Mouse monoclonal)eBioscienceCat# 47-0088-42;
RRID:AB_1272046
FCM (1:100)
AntibodyCD11c (Mouse monoclonal)BioLegendCat# 301628;
RRID:AB_11203895
FCM (1:100)
AntibodySEMA4A (Mouse monoclonal)BioLegendCat# 148404;
RRID:AB_2565287
FCM (1:100)
AntibodyCD3ε (Armenian Hamster monoclonal)BioLegendCat# 100328;
RRID:AB_893318
FCM Skin specimens (1:20), Others (1:100)
AntibodyCD4 (Rat monoclonal)BioLegendCat# 100406;
RRID:AB_312691
FCM (1:100)
AntibodyCD8a (Rat monoclonal)BioLegendCat# 100714;
RRID:AB_312753
FCM (1:100)
AntibodyCD16/32 (Rat monoclonal)BioLegendCat# 101301;
RRID:AB_312800
FCM (1:100)
AntibodyCD69 (Armenian Hamster monoclonal)BioLegendCat# 104514;
RRID:AB_492843
FCM (1:10)
AntibodyCD103 (Armenian Hamster monoclonal)BioLegendCat# 121422;
RRID:AB_2562901
FCM (1:100)
AntibodyTCR Vγ2 (Armenian Hamster monoclonal)BioLegendCat# 137705;
RRID:AB_10643997
FCM (1:100)
AntibodyTCR Vγ3 (Syrian Hamster monoclonal)BD BiosciencesCat# 743241;
RRID:AB_2741371
FCM (1:100)
AntibodyTCRγδ (Armenian Hamster monoclonal)BioLegendCat# 118124;
RRID:AB_11204423
FCM (1:100)
AntibodyIFNγ (Rat monoclonal)BioLegendCat# 505813;
RRID:AB_493312
FCM (1:40)
AntibodyIL-4 (Rat monoclonal)BD BiosciencesCat# 562915;
RRID:AB_2737889
FCM (1:40)
AntibodyIL-17A (Rat monoclonal)BioLegendCat# 506925;
RRID:AB_10900442
FCM (1:40)
Sequence-based reagentHuman GAPDH_FThis paperPCR primersGTCTCCTCTGACTTCAACAGCG
Sequence-based reagentHuman GAPDH_RThis paperPCR primersACCACCCTGTTGCTGTAGCCAA
Sequence-based reagentHuman SEMA4A_FCarvalheiro et al., 2019PCR primersTCTGCTCCTGAGTGGTGATG
Sequence-based reagentHuman SEMA4A_RCarvalheiro et al., 2019PCR primersAAACCAGGACACGGATGAAG
Peptide, recombinant proteinRecombinant Mouse IL-1β (carrier-free)BioLegendCat# 575102
Peptide, recombinant proteinRecombinant Mouse IL-6 (carrier-free)BioLegendCat# 575702
Peptide, recombinant proteinRecombinant Mouse IL-23 (carrier-free)BioLegendCat# 589006
Peptide, recombinant proteinRecombinant Mouse TGF-β1 (carrier-free)BioLegendCat# 763102
Commercial assay or kitBD Cytofix/Cytoperm Fixation/Permeabilization KitBD BiosciencesCat# 554714
Commercial assay or kitDako REAL EnVision Detection System, Peroxidase/DAB, Rabbit/Mouse, HRP kitAgilentCat# K5007;
RRID:AB_2888627
Commercial assay or kitDirect-zol RNA Miniprep KitsZymo ResearchCat# R2050
Commercial assay or kitHigh-Capacity RNA-to-cDNA KitThermo Fisher scientificCat# 4387406
Commercial assay or kitLIVE/DEAD Fixable Dead Cell Stain KitThermo Fisher ScientificCat# L34965
Commercial assay or kitPan T Cell Isolation Kit II, mouseMiltenyi BiotecCat# 130-095-130
Commercial assay or kitT Cell Activation/Expansion Kit, mouseMiltenyi BiotecCat# 130-093-627
Commercial assay or kitTB Green Premix Ex Taq II
(Tli RNaseH Plus)
Takara BioCat# RR820A
Chemical compound, drug5% imiquimod creamMochidaGlobal Trade Item Number: 224130002
Chemical compound, drugBD GolgiplugBD BiosciencesCat# 555029
Chemical compound, drugCollagenase type IIIWorthington Biochemical CorporationCat# LS004183
Chemical compound, drugCountBright Absolute Counting Beads, for flow cytometryThermo Fisher ScientificCat# C36950
Chemical compound, drugDispase IIWakoCat# 383-02281
Chemical compound, drugIonomycinWakoCat# 095-05831
Chemical compound, drugJR-AB2-011MedChemExpressCat# HY-122022
Chemical compound, drugMounting medium with DAPIVector LaboratoriesCat# H-1200;
RRID:AB_2336790
Chemical compound, drugPhorbol 12-Myristate 13-AcetateWakoCat# 162-23591
Chemical compound, drugPhosphatase Inhibitor Cocktail (100×)Nacalai TesqueCat# 07574-61
Chemical compound, drugProtease Inhibitor Cocktail for Use with Mammalian Cell and Tissue ExtractsNacalai TesqueCat# 25955-11
Chemical compound, drugProtein Block Serum-FreeAgilentCat# X0909
Chemical compound, drugRapamycinSanxin ChempharmaCAS# 53123-88-9
Chemical compound, drugRBC Lysis Buffer (10×)BioLegendCat# 420301
Chemical compound, drugWB Stripping SolutionNacalai TesqueCat# 05364-55
Software, algorithmCellxgene VIPLi et al., 2022
Software, algorithmGraphPad Prism 10GraphPad SoftwareRRID:SCR_002798
Software, algorithmImageJNational Institutes of HealthRRID:SCR_003070
Software, algorithmKaluzaBeckman CoulterRRID:SCR_016182
Software, algorithmRaNAseqhttps://ranaseq.eu/; Prieto and Barrios, 2019

Additional files

Supplementary file 1

Patient information.

This table provides patient information used in this study. Psoriasis severity was defined by the total body surface area (BSA) affected: <3% BSA for mild, 3–10% BSA for moderate, and >10% BSA for severe disease.

https://cdn.elifesciences.org/articles/97654/elife-97654-supp1-v1.xlsx
Supplementary file 2

Antibodies used for immunohistochemical, immunofluorescence, and western blot analyses.

https://cdn.elifesciences.org/articles/97654/elife-97654-supp2-v1.xlsx
Supplementary file 3

Primer sequences used for real-time quantitative PCR in experiments with human and murine samples.

https://cdn.elifesciences.org/articles/97654/elife-97654-supp3-v1.xlsx
Supplementary file 4

Antibodies used for flow cytometry analysis.

https://cdn.elifesciences.org/articles/97654/elife-97654-supp4-v1.xlsx
Supplementary file 5

Mouse recombinant cytokines.

https://cdn.elifesciences.org/articles/97654/elife-97654-supp5-v1.xlsx
MDAR checklist
https://cdn.elifesciences.org/articles/97654/elife-97654-mdarchecklist1-v1.docx

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  1. Miki Kume
  2. Hanako Koguchi-Yoshioka
  3. Shuichi Nakai
  4. Yutaka Matsumura
  5. Atsushi Tanemura
  6. Kazunori Yokoi
  7. Shoichi Matsuda
  8. Yuumi Nakamura
  9. Naoya Otani
  10. Mifue Taminato
  11. Koichi Tomita
  12. Tateki Kubo
  13. Mari Wataya-Kaneda
  14. Atsushi Kumanogoh
  15. Manabu Fujimoto
  16. Rei Watanabe
(2024)
Downregulation of semaphorin 4A in keratinocytes reflects the features of non-lesional psoriasis
eLife 13:RP97654.
https://doi.org/10.7554/eLife.97654.3