Gynecologic oncology · 2008
Tumor-associated macrophages correlate with vascular space invasion and myometrial invasion in endometrial carcinoma.
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Soeda Shu, Nakamura Naoya, Ozeki Takeharu, Nishiyama Hiroshi, Hojo Hiroshi, Yamada Hidekazu, Abe Masafumi, Sato Akira
Аннотация
OBJECTIVE: This study was conducted to determine whether tumor-associated macrophages (TAMs) correlate with clinicopathological features in endometrioid adenocarcinoma.
METHODS: 76 cases of endometrioid adenocarcinoma treated initially by hysterectomy with pelvic lymphadenectomy were retrospectively retrieved, and their histological features were evaluated. Immunohistochemical staining for CD68, CD34, and Ki-67 was performed on paraffin-embedded sections. TAMs were counted in two areas: in the invasive margin (margin TAMs) and in the tumor (intratumor TAMs).
RESULTS: Margin TAMs were significantly associated with FIGO stage (P=0.033), histological grade (P=0.008), myometrial invasion (P=0.0001), pelvic lymph node metastasis (P=0.027), and vascular space invasion (P=0.0001). Intratumor TAMs were significantly associated with intratumor Ki-67 (P=0.006) and microvessel density (P=0.020). Patients with high margin TAMs (> or = 20) had significantly worse progression-free survival (PS) and overall survival (OS) than those with low margin TAMs (< 20) (log rank test, P=0.0031 and P=0.0085, respectively). On multivariate analysis, high margin TAMs were significantly associated with vascular space invasion (P=0.013; HR, 6.05; 95% confidence interval [CI], 1.468-24.938) and myometrial invasion (P=0.041; HR, 4.03; 95% CI, 1.06-14.71). Vascular space invasion was only associated with PFS.
CONCLUSION: Although on univariate analysis TAMs are associated with other poor prognosticators, on a multivariate analysis, TAMs appear only to be associated with MI and VI. TAMs may play a significant role in the biology of tumor progression of endometrial adenocarcinoma, but do not appear to be independent prognostic indicators of patient's survival.
METHODS: 76 cases of endometrioid adenocarcinoma treated initially by hysterectomy with pelvic lymphadenectomy were retrospectively retrieved, and their histological features were evaluated. Immunohistochemical staining for CD68, CD34, and Ki-67 was performed on paraffin-embedded sections. TAMs were counted in two areas: in the invasive margin (margin TAMs) and in the tumor (intratumor TAMs).
RESULTS: Margin TAMs were significantly associated with FIGO stage (P=0.033), histological grade (P=0.008), myometrial invasion (P=0.0001), pelvic lymph node metastasis (P=0.027), and vascular space invasion (P=0.0001). Intratumor TAMs were significantly associated with intratumor Ki-67 (P=0.006) and microvessel density (P=0.020). Patients with high margin TAMs (> or = 20) had significantly worse progression-free survival (PS) and overall survival (OS) than those with low margin TAMs (< 20) (log rank test, P=0.0031 and P=0.0085, respectively). On multivariate analysis, high margin TAMs were significantly associated with vascular space invasion (P=0.013; HR, 6.05; 95% confidence interval [CI], 1.468-24.938) and myometrial invasion (P=0.041; HR, 4.03; 95% CI, 1.06-14.71). Vascular space invasion was only associated with PFS.
CONCLUSION: Although on univariate analysis TAMs are associated with other poor prognosticators, on a multivariate analysis, TAMs appear only to be associated with MI and VI. TAMs may play a significant role in the biology of tumor progression of endometrial adenocarcinoma, but do not appear to be independent prognostic indicators of patient's survival.