Prospective Study
Copyright ©The Author(s) 2022.
World J Transplant. Oct 18, 2022; 12(10): 313-324
Published online Oct 18, 2022. doi: 10.5500/wjt.v12.i10.313
Table 1 Clinical and demographic characteristics of kidney transplant recipients
Characteristics

Age, yr, median (range)46 (13-70)
Male/female49/22
Living kidney donor22.5%
Deceased kidney donor77.5%
Previous kidney transplant7.0%
Preemptive transplantation4.2%
PRA(-)60.5%
Early rejection, within first 6 mo after KT4.2%
Induction therapy
Basiliximab84.5%
ATG15.5%
Maintenance immune suppression
Tacrolimus/mycophenolate/prednisone100.0%
Other0.0%
Distribution of underlying kidney disease
Polycystic kidney disease22.5%
Primary glomerulopathies21.1%
Reflux nephropathy12.6%
Diabetes mellitus4.2%
Nephrosclerosis/hypertension4.2%
Urinary tract infections/ stones3.7%
Other16.2%
Unknown15.5%
Table 2 Differences between panel reactive antibodies (-) and (+) patients
Parameter
T0 (at renal transplantation)
PRA(-)
PRA(+)
P value
Age, yr45 (13-65)47 (14-70)NS
HDV, mo82.5 (0-251)112 (0-165)NS
Time of cold ischemia, h18 (0-30)16.5 (0-30.5)NS
Pre-emptive RT, %6 (13.6)1 (3.6)NS
Acute rejection episode, %2 (4.5)1 (3.6)NS
ATG administration, %5 (11.4)7 (25)NS
DGF, %7 (15.9)4 (14.3)NS
Table 3 Lymphocyte numbers and subpopulations in panel reactive antibodies (-) and (+) patients at time of transplantation (T0)
ParameterT0, at renal transplantation
All patients
PRA(-)
PRA(+)
n714328
Lymphocyte, %18.1 (6.4-40)18.8 (6.4-38.4)17.8 (11.2-40)
Lymphocyte, cells/μL1200 (700-2800)1200 (700-2800)1100 (700-2600)
CD4+, %42.0 (20.6-68.6)44.4 (20.6-68.6)41.5 (25.3-59.5)
CD4+, cells/μL515 (206-1453.2)557 (206-1453.2)435 (253-1362.4)
CD8+, %24.55 (10.5-53.1)25.1 (12,2-37.7)23.4 (10.5-53.1)
CD8+, cells/μL301.5 (91.7-665.6)301.5 (102.9-641.7)294.9 (91.7-665.6)
CD4+/CD8+1.7 (0.6-5.6)1.5 (0.9-5.6)2 (0.6-5)
CD4+CD28-, %5.4 (0.0-33.7)4.8 (0.2-33.7)7.2 (0-32.1)
CD4+CD28-, cells/μL26.9 (0.0-206)26.7 (0-160)27.3 (0-206)
CD8+CD28-, %38.6 (6.1-91.5)38.3 (6.1-68.2)48.4 (15.1-91.5)
CD8+CD28-, cells/μL121.5 (13-583)113.6 (17-315)122 (13-583)
CD16/56, %18 (3.6-50.6)17.7 (3.6-50.6)18.4 (4.4-34.2)
CD16/56, cells/μL198.1 (50.4-750.5)210 (50.4-750.5)190.4 (94.8-393.6)
Tregs, %, on CD44 (0.1-11.5)3.9 (0.1-11.5)4.2 (1.5-7.3)
Tregs, cells/μL20 (0.52-74.38)20.2 (0.5-74.3)18.9 (5.8-73.5)
Table 4 Changes in T lymphocyte subpopulations at T0, T3, and T6 time points in patients with panel reactive antibodies (-)
Parameter
T0
T3
T6
P value
Lymphocyte, %18.8 (6.4-38.4)23 (10.9-47.9)25.4 (8.4-52)0.001
Lymphocyte, cells/μL1200 (700-2800)1650 (700-4100)1900 (800-3700)< 0.0001
CD4+, %44.4 (20.6-68.6)49.8 (22.7-77.1)49.1 (16.2-71.4)0.004
CD4+, cells/μL557 (206-1453.2)782 (261.8-1951.6)872 (330-2001.6)< 0.0001
CD8+, % 25.1 (12.2-37.7)26.9 (12.4-50.1)27.4 (13.3-49)NS
CD8+, cells/μL301.5 (102.9-641.7)456.3 (148.6-1402.8)514.5 (189.2-1397.8)< 0.0001
CD4CD28null, %4.8 (0.2-33.7)2.8 (0-21.1)2.7 (0.1-36.4)NS
CD4CD28null, cells/μL26.7 (0.9-149)27.5 (0-160)26.5 (09-241)NS
CD8CD28null, %38.3 (6.1-68.2)28.4 (8.3-80.5)32.8 (6.7-90.7)NS
CD8CD28null, cells/μL113.6 (17-315)112.6 (28-1129)158 (18-1267)NS
CD16/56, %17.7 (3.6-50.6)6.6 (1.9-24.2)9.3 (2.9-28.6)< 0.0001
CD16/56, cells/μL210 (50.4-750.5)121.6 (33-622.2)151.2 (44-774.4)< 0.0001
Tregs, %, on CD43.9 (0.1-11.5)3.3 (0.9-6.8)4.1 (1.4-8.8)NS
Tregs, cells/μL20.2 (0.5-74.3)29.4 (7.5-122.9)38.4 (8-104)< 0.0001
Table 5 Changes in T lymphocyte subpopulations at T0, T3, and T6 time points in patients with panel reactive antibodies (+)
Parameter
T0
T3
T6
P value
Lymphocyte, %17.8 (11.2-40)16.4 (7.5-36.8)20.9 (12.2-36.4)0.07
Lymphocyte, cells/μL1100 (700-2600)1300 (700-3600)1700 (525-3200)0.009
CD4+, %41.5 (25.3-59.5)42.3 (29.2-65.3)46.5 (27.4-62)NS
CD4+, cells/μL435 (253-1362.4)548.9 (292-1371.3)744 (220-1888)0.008
CD8+, %23.4 (10.5-53.1)27.4 (10.3-53.6)29.9 (11.6-56.2)0.005
CD8+, cells/μL294.9 (91.7-665.6)408 (123.6-1234.8)504.9 (114.4-955.4)< 0.0001
CD4CD28null, %7.2 (0-32.1)5.3 (0.2-24.8)4 (0.1-28.6)NS
CD4CD28null, cells/μL27.3 (0-206)22.8 (1.5-234)24.2 (1.3-244)NS
CD8CD28null, %48.4 (15.1-91.5)47.1 (10.7-82.1)36.5 (7.7-82)NS
CD8CD28null, cells/μL122.2 (13-583)200 (19-547)160 (22-726)NS
CD16/56, %18.4 (4.4-34.2)11.4 (2.9-26)7.9 (3-24.6)< 0.0001
CD16/56, cells/μL190.4 (94.8-393.6)157.5 (34.8-450)135.7 (23.76-385.7)0.07
Tregs, %, on CD44.2 (1.5-7.3)3.3 (1.2-6.8)4.4 (1.4-8.6)NS
Tregs, cells/μL18.9 (5.8-73.5)20.9 (7.4-65.8)26.7 (8.5-103.8)NS