邱思芳. Subsets and clinical significance of CD4+, CD8+and CD28+T lymphocytes in the patients with colorectal carcinoma and adenoma[J]. China Oncology, 2018, 28(8): 577-583.
邱思芳. Subsets and clinical significance of CD4+, CD8+and CD28+T lymphocytes in the patients with colorectal carcinoma and adenoma[J]. China Oncology, 2018, 28(8): 577-583. DOI: 10.19401/j.cnki.1007-3639.2018.08.003.
ose: Colorectal cancer (CRC) is a disease that seriously affects the quality of life. This study aimed to investigate the subsets and significance of tumor cell microenvironment T cell in CRC and adenoma. Methods: Immunohistochemistry and flow cytometry were used to test T lymphocyte subsets in 51 healthy subjects (control group)
46 patients with colorectal adenomas (adenoma group)
100 CRC patients (cancer group)
and 15 postoperative patients with CRC (postoperative group). Results: The positive rates of CD4
+
T cells in the control group
adenoma group and cancer group were 90.00%
43.75% and 32.65%
respectively. The positive rates of CD8
+
T lymphocytes were 30.00%
56.25% and 75.51%
respectively. The positive rates of CD28
+
T lymphocytes were 42.86%
30.00% and 20.00%
respectively. The levels of CD4
+
CD4
+
/CD8
+
CD28
+
CD8
+
CD28
+
and CD8
-
CD28
+
in the control group
adenoma group and cancer group gradually decreased
while the CD8
+
and CD8
+
CD28
-
levels gradually increased (P0.05). The difference in T cell subsets between preoperative and postoperative patients was statistically significant (P0.05). Conclusion: CD4
+
CD4
+
/CD8
+
CD28
+
CD8
+
CD28
+
and CD8
-
CD28
+
in the subgroup of colorectal tumor microenvironment showed a declining trend
while CD8
+
and CD8
+
CD28
-
showed an increasing trend. Moreover
these trends gradually appeared in precancerous adenomas. After CRC patients underwent tumor resection
their T cell subsets recovered. Therefore
to some extent
the changes of T cell subsets in CRC can predict the development of colorectal disease early.