Retrospective Cohort Study
Copyright ©The Author(s) 2020.
World J Gastroenterol. Nov 21, 2020; 26(43): 6853-6866
Published online Nov 21, 2020. doi: 10.3748/wjg.v26.i43.6853
Table 1 Correlation of immunoreactivity of doublecortin-like kinase 1 and leucine-rich repeat-containing G-protein-coupled receptor 5 with clinicopathological features
Clinicopathologic characteristics
n (%)DCLK1
P valueLgr5
P value
Low (n = 48)
High (n = 44)
Low (n = 62)
High (n = 30)
Age (yr)
≤ 4949 (53)26 (53)23 (47)0.85633 (67)16 (33)0.992
> 4943 (47)22 (51)21 (49)29 (67)14 (33)
Gender
Male52 (57)29 (56)23 (44)0.43137 (71)15 (29)0.380
Female40 (43)19 (47)21 (53)25 (63)15 (37)
Depth of penetration
T318 (20)6 (33)12 (67)0.07413 (72)5 (28)0.626
T474 (80)42 (57)32 (43)49 (66)25 (34)
Lymph node
N038 (41)20 (53)18 (47)0.89227 (71)11 (29)0.787
N141 (45)22 (54)19 (46)27 (66)14 (34)
N213 (14)6 (12)7 (16)8 (62)5 (38)
Tumor stage (TNM)
II38 (41)20 (55)18 (45)0.94127 (71)11 (29)0.530
III54 (59)28 (52)26 (48)35 (65)19 (35)
Differentiation
Well/moderate66 (72)37 (56)29 (44)0.23448 (73)18 (27)0.082
Poor/mucinous26 (28)11 (42)15 (58)14 (54)12 (46)
Tumor site
Left42 (46)24 (57)18 (43)0.53732 (76)10 (24)0.032
Right17 (18)7 (41)10 (59)7 (41)10 (59)
Rectum33 (36)17 (52)16 (48)23 (70)10 (30)
Postoperative adjuvant chemotherapy
Xeloda monotherapy7 (7)4 (57)3 (43)0.7835 (71)2 (29)0.763
FOLFOX regimen32 (35)18 (56)14 (44)20 (63)12 (37)
XELOX regimen53 (58)26 (49)27 (51)37 (70)16 (30)
CEA
Normal68 (74)38 (56)30 (44)0.23145 (66)23 (34)0.676
High24 (26)10 (42)14 (58)17 (71)7 (29)
CA19-9
Normal66 (72)35 (53)31 (47)0.79345 (68)21 (32)0.797
High26 (28)13 (50)13 (50)17 (67)9 (33)
MSI
MSS89 (97)46 (52)43 (48)0.60960 (67)29 (33)0.978
MSI3 (3)2 (67)1 (33)2 (67)1 (33)
Recurrence
Absent67 (73)37 (55)30 (45)0.33844 (66)23 (34)0.565
Present25 (27)11 (44)14 (56)18 (72)7 (28)
Lung metastasis
Absent80 (87)40 (50)40 (50)0.28152 (65)28 (35)0.206
Present12 (13)8 (67)4 (33)10 (83)2 (17)
Liver metastasis
Absent83 (90)42 (51)41 (49)0.35955 (66)28 (34)0.484
Present9 (10)6 (67)3 (33)7 (78)2 (22)
Table 2 Correlation of immunoreactivity of doublecortin-like kinase 1/leucine-rich repeat-containing G-protein-coupled receptor 5 with clinicopathological features
Clinicopathologic characteristicsn (%)
DCLK1/Lgr5 phenotypes
P value
DCLK1Low /Lgr5Low
DCLK1Low /Lgr5High
DCLK1High /Lgr5Low
DCLK1High /Lgr5High
Age (yr)
≤ 4949 (53)23 (47)3 (6)10 (20)13 (27)0.890
> 4943 (47)18 (42)4 (9)11 (26)10 (23)
Gender
Male52 (57)25 (48)4 (8)12 (23)11 (21)0.348
Female40 (43)16 (40)3 (7)9 (23)12 (30)
Depth of penetration
T318 (20)5 (28)1 (6)8 (44)4 (22)0.223
T474 (80)36 (49)6 (8)13 (17)19 (26)
Lymph node
N038 (41)17 (45)3 (8)10 (26)8 (21)0.858
N141 (45)18 (44)4 (10)9 (22)10 (24)
N213 (14)6 (46)0 (0)2 (15)5 (39)
Tumor stage (TNM)
II38 (41)17 (45)3 (8)10 (26)8 (21)0.774
III54 (59)24 (45)4 (7)11 (20)15 (28)
Differentiation
Well/moderate66 (72)32 (48)5 (8)16 (24)13 (20)0.115
Poor/mucinous26 (28)9 (35)2 (8)5 (19)10 (38)
Tumour site
Left42 (46)22 (52)2 (5)10 (24)8 (19)0.187
Right17 (18)4 (23)3 (18)3 (18)7 (41)
Rectum33 (36)15 (46)2 (6)8 (24)8 (24)
Postoperative adjuvant chemotherapy
Xeloda monotherapy7 (7)3 (43)1 (14)21 (29)22 (14)0.875
FOLFOX regimen32 (35)15 (47)3 (9)5 (16)9 (28)
XELOX regimen53 (58)23 (43)3 (6)14 (26)13 (25)
CEA
Normal68 (74)33 (49)5 (7)12 (18)18 (26)0.238
High24 (26)8 (33)2 (8)9 (38)5 (21)
CA19-9
Normal66 (72)29 (44)6 (9)16 (24)15 (23)0.710
High26 (28)12 (46)1 (4)5 (19)8 (31)
MSI
MSS89 (97)39 (44)7 (8)21 (25)22 (23)0.713
MSI3 (3)2 (67)0 (0)0 (0)1 (33)
Recurrence
Absent67 (73)30 (45)7 (10)14 (21)16 (24)0.374
Present25 (27)11 (44)0 (0)7 (28)7 (28)
Lung metastasis
Absent80 (87)33 (41)7 (9)19 (24)21 (26)0.365
Present12 (13)8 (66)0 (0)2 (17)2 (17)
Liver metastasis
Absent83 (90)35 (42)7 (9)20 (24)2 (25)0.478
Present9 (10)6 (67)0 (0)1 (11)2 (22)
Table 3 Prognostic value, univariate and multivariate analyses of potential predictor for recurrence
Variables
HR95%CIP value
Univariate
Age (≤ 49 vs > 49 yr)0.7420.303-1.8180.515
Gender (Male vs Female)0.7580.302-1.9010.555
Depth of penetration (T3 vs pT4)1.3100.383-4.4760.006
Lymph node
N01 (ref)
N12.5900.795-8.4390.114
N27.5622.189-26.1150.001
Tumor stage (TNM) (II vs III)3.6101.201-10.8490.022
Differentiation (well/moderate vs poor/mucinous)2.5611.058-6.1980.037
Tumor site
Left1 (ref)
Right0.7350.205-2.6360.637
Rectum0.8340.307-2.2630.721
CEA (normal vs high)4.7221.933-11.5350.001
CA19-9 (normal vs high)3.9611.633-9.6060.002
MSI (MSS vs MSI)0.0470.000-1327.1120.559
Lung metastasis (absent vs present)2.3250.844-6.4050.103
Liver metastasis (absent vs present)2.3510.785-7.0380.127
DCLK1 (low vs high)3.9581.496-10.4720.006
Lgr5 (low vs high)2.5211.025-6.1990.044
DCLK1/Lgr5 (others1 vs high/high)3.8081.471-9.8540.006
Multivariate
Tumor stage (TNM) (II vs III)6.8461.918-24.4450.003
Differentiation (well/moderate vs poor/mucinous)1.8640.699-4.9710.241
CEA (normal vs high)4.8351.651-14.1540.004
CA19-9 (normal vs high)4.1021.529-11.0050.005
DCLK1 (low vs high)4.6561.207-17.9560.026
Lgr5 (low vs high)0.7640.076-7.6910.819
DCLK1/Lgr5 (others1 vs high/high)3.4290.212-55.5830.386
Table 4 Prognostic value, univariate and multivariate analyses of potential predictor for survival
Variables
HR95%CIP value
Univariate
Age (≤ 49 vs > 49 yr)0.6810.276-1.6840.406
Gender (Male vs Female)0.7950.316-2.0010.626
Depth of penetration (T3 vs pT4)0.7720.226-2.6400.680
Lymph node
N01 (ref)
N12.7740.839-9.1700.094
N28.8992.496-31.7230.001
Tumor stage (TNM) (II vs III)3.8801.274-11.8710.017
Differentiation (well/moderate vs poor/mucinous)0.3760.155-0.9130.031
Tumour site
Left1 (ref)
Right0.7980.221-2.8800.731
Rectum0.8720.319-2.3840.790
CEA (normal vs high)0.2450.101-0.5950.002
CA19-9 (normal vs high)3.5691.477-8.6210.005
MSI (MSS vs MSI)0.0470.000-3055.1060.588
Recurrence (absent vs present)8.0383.070-21.0500.001
Lung metastasis (absent vs present)2.1410.776-5.9110.142
Liver metastasis (absent vs present)2.2160.734-6.6890.158
DCLK1 (low vs high)4.1671.491-11.6440.006
Lgr5 (low vs high)2.5751.030-6.4380.043
DCLK1/Lgr5 (others1 vs high/high)3.2731.297-8.2620.012
Multivariate
Tumor stage (TNM) (II vs III)6.0871.647-22.4990.007
Differentiation (well/moderate vs poor/mucinous)2.7060.989-7.4060.053
CEA (normal vs high)4.3631.346-14.1360.014
CA19-9 (normal vs high)1.0780.362-3.2080.893
Recurrence (absent vs present)12.0023.066-46.9880.001
DCLK1 (low vs high)4.2721.005-18.1670.049
Lgr5 (low vs high)7.0880.582-86.3420.125
DCLK1/Lgr5 (others1 vs high/high)0.5930.039-9.0850.708