Research Article

Exosome Derived from Human Umbilical Cord Mesenchymal Cell Exerts Immunomodulatory Effects on B Cells from SLE Patients

Table 2

Characteristics of untreated SLE patients and HC.

FeaturesHC (n = 22)SLE (n = 28)P-value

Age (years)30.09 ± 4.0631.86 ± 6.640.253
Gender (F/M)16/620/80.919
Clinical manifestations
 Fever0 (0.0%)2 (7.1%)0.201
 Rashes0 (0.0%)6 (21.4%)0.021
 Arthritis0 (0.0%)7 (25%)0.011
 Serositis0 (0.0%)4 (14.3%)0.065
 Nephritis0 (0.0%)15 (53.6%)
 CNS involvement0 (0.0%)2 (7.1%)0.201
 Cardiac involvement0 (0.0%)3 (10.7%)0.113
 Gastrointestinal involvement0 (0.0%)4 (14.3%)0.065

Laboratory data
 ANA antibody positive0 (0.0%)16 (57.1%)
 Anti-SSA antibody positive0 (0.0%)11 (39.3%)
 Anti-SSB antibody positive0 (0.0%)5 (17.9%)
 Anti-SM antibody positive0 (0.0%)6 (21.4%)0.002
 Anti-dsDNA antibody positive0 (0.0%)5 (17.9%)0.024
  WBC (×109/L)8.14 ± 1.366.14 ± 1.89
  Hb (g/L)136.5 ± 9.93118.43 ± 19.56
  PLT (×109/L)239.82 ± 15.27196.61 ± 47.20
  C3 (g/L)1.34 ± 0.120.43 ± 0.07
  C4 (g/L)0.32 ± 0.350.13 ± 0.05
  24-hr urinary protein (g)0.13 ± 0.023.74 ± 2.05

Data are reported as means ± SD or number and percent within parentheses. CNS, central nervous system; ANA, antinuclear antibodies; dsDNA, double-stranded DNA; WBC, white blood cells; Hb, blood hemoglobin; PLT, blood platelets; C3, complement 3; C4, complement 4. Significant differences () are shown in bold. Student’s t-test, or the χ2 test, was used as appropriate.