نوع مقاله : مقاله های پژوهشی
نویسندگان
1 استاد، گروه آسیب‌شناسی، دانشکده‌ی پزشکی، بیمارستان الزهرا، دانشگاه علوم پزشکی اصفهان، اصفهان، ایران
2 دستیار آسیب‌شناسی، گروه آسیب‌شناسی، دانشکده‌ی پزشکی، دانشگاه علوم پزشکی اصفهان، اصفهان، ایران
چکیده
تازه های تحقیق
پروین محزونی: Google Scholar, PubMed
کلیدواژه‌ها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
Background: CD44 is overexpressed in many tumors and promotes tumor formation through interactions with the tumor microenvironment. This study aimed to evaluate the immunohistochemical expression of CD44 and Ki-67 in different histologic types of meningioma and correlate their expression results with their clinicopathological variables.
Methods: This cross-sectional study was conducted on 40 tissue blocks of patients with meningioma in the Al-Zahra Hospital in Isfahan from 2018-2020. Immunohistochemical staining using CD44 and Ki-67 was done separately on each slide. All slides were examined using an Olympus light microscope with 20X and 40X lenses. The positive controls used for CD44 and Ki-67 were, respectively, tonsil tissue and a case of invasive ductal carcinoma with a high Ki-67 proliferation index.
Findings: There was no significant relation between age, sex, and disease recurrence with the expression of CD44. The proliferative activity of Ki-67 in grade I with a mean of 0.46 ± 1.25 was significantly lower than in grade II, III with a mean of 20.49 ± 17.13. Other variables, such as age, sex, and recurrence of meningioma, had no significant relationship with proliferative activity of Ki-67. The relationship between CD44 immunohistochemical expression and proliferative index of Ki-67 was direct and significant.
Conclusion: CD44 is a marker of aggressiveness in meningiomas as it was significantly highly expressed in grade II and III meningiomas and was positively correlated with a higher Ki-67 proliferation index. Moreover, Ki-67 proliferation activity was significantly correlated with higher meningioma grades and brain invasion.
کلیدواژه‌ها [English]
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