Research Article

Secretory High-Mobility Group Box 1 Protein Affects Regulatory T Cell Differentiation in Neuroblastoma Microenvironment In Vitro

Table 1

Summary of differentially expressed proteins between SK-N-SH versus SK-N-AS secretomes (detailed information regarding peptide sequences and raw spot intensities in Supplementary Table 1).

Spot IDGene nameProtein nameSwissProt IDScores CovNo. of distinct peptidespIMW (kDa)Spot intensity
Mean±SEM
Fold changep-value
SK-N-SHSK-N-AS

Protein spots increased in SK-N-SH secretome
0CCT6BT-complex protein 1 subunit zeta-2Q9252681216.8558.350.245 ± 0.0150.079 ± 0.0113.101.59E-05
38STMN1StathminP16949154925.7617.290.580 ± 0.0280.130 ± 0.0224.431.43E-06
53GSTP1Glutathione S-transferaseP0921146515.4323.570.418 ± 0.0270.095 ± 0.0114.413.60E-06
65UCHL1Ubiquitin carboxyl-terminal hydrolase isozyme L1P099362372135.3325.150.519 ± 0.0620.145 ± 0.0163.583.71E-04
67TPI1Triosephosphate isomeraseP601742141225.6531.050.992 ± 0.1240.202 ± 0.0204.922.28E-04
72YWHAE14-3-3 protein epsilonP62258341034.6329.320.678 ± 0.0240.168 ± 0.0434.047.08E-06
75PSMA8Proteasome subunit alpha type-7-likeQ8TAA360519.0728.680.707 ± 0.0810.119 ± 0.0325.941.41E-04
85HMGB1High mobility group protein B1P094292171325.6225.040.354 ± 0.0580.028 ± 0.01012.835.74E-04
87YWHAE14-3-3 protein epsilonP622581581134.6329.320.279 ± 0.0330.083 ± 0.0173.377.60E-04
91PSMA1Proteasome subunit alpha type-1P257862271736.1529.820.119 ± 0.0080.035 ± 0.0043.431.67E-05
105LDHAL-lactate dehydrogenase AP003381151138.4436.950.572 ± 0.0490.178 ± 0.0283.221.17E-04
110MDH2Malate dehydrogenase, mitochondrialP409263751748.9235.900.894 ± 0.0330.217 ± 0.0314.114.07E-07
123C11orf54Ester hydrolase C11orf54Q9H0W936216.2335.600.146 ± 0.0140.044 ± 0.0063.311.96E-04
134GOT2Aspartate aminotransferase, mitochondrialP00505149629.1447.880.282 ± 0.0160.074 ± 0.0193.823.36E-05
135SETSET proteinQ0110594724.2333.470.407 ± 0.0210.132 ± 0.0173.077.65E-06
154ENO2Gamma-enolaseP091043711244.9147.580.132 ± 0.0140.041 ± 0.0083.235.46E-04
158ENO1Alpha-enolaseP067332431137.0147.481.390 ± 0.1480.374 ± 0.0393.721.62E-04
168FKBP4Peptidyl-prolyl cis-trans isomeraseQ02790189625.3552.050.206 ± 0.0090.051 ± 0.0104.023.51E-06
183HSP90AA1Heat shock protein HSP 90-alphaP07900393954.9485.000.933 ± 0.1250.101 ± 0.0309.281.89E-04
184VCPTransitional endoplasmic reticulum ATPaseP55072128215.1489.950.631 ± 0.1140.131 ± 0.0124.792.45E-03
223GOT1Aspartate aminotransferase, cytoplasmicP171743402256.5246.440.163 ± 0.0090.041 ± 0.0054.003.83E-06
241HSPA4Heat shock 70 kDa protein 4P34932185325.1195.120.114 ± 0.0090.036 ± 0.0073.141.70E-04
258DBHDopamine beta-hydroxylaseP09172191525.9769.870.230 ± 0.0210.066 ± 0.0123.481.37E-04
259FHFumarate hydrataseP07954296828.8554.770.123 ± 0.0120.029 ± 0.0564.159.83E-05
Protein spots decreased in SK-N-SH secretome
180CHGAChromogranin-AP10645215724.5850.820.629 ± 0.0912.092 ± 0.3660.304.68E-03
205B2MBeta-2-microglobulinP617692613726.0613.820.105 ± 0.0300.849 ± 0.0820.122.71E-05
213SPARCSPARCP094862621644.7335.460.395 ± 0.0701.816 ± 0.3200.222.51E-03
235ASS1Argininosuccinate synthaseP009662131138.0846.780.028 ± 0.0030.163 ± 0.0240.175.52E-04
237IGFBP2Insulin-like growth factor-binding protein 2P180653662047.4835.870.048 ± 0.0050.184 ± 0.0410.261.06E-02
242C7Complement component C7P10643455946.0996.650.411 ± 0.0891.231 ± 0.1900.334.53E-03

of the mean spot intensity of SK-N-SH group divided by SK-N-AS group.
%Cov, the percentage of protein sequence covered by the identified peptides; MW, molecular weight; pI, isoelectric point.