Relationship of Argyrophilic Proteins of Nucleolal Organizer Regions in Ki-67+ Cells with Clinical and Morphological Parameters in Lung Adenocarcinoma

2014 ◽  
Vol 158 (1) ◽  
pp. 145-149
Author(s):  
A. F. Lazarev ◽  
D. S. Kobyakov ◽  
A. M. Avdalyan ◽  
E. L. Lushnikova ◽  
L. M. Nepomnyashchikh
PeerJ ◽  
2021 ◽  
Vol 9 ◽  
pp. e12140
Author(s):  
Bing Chen ◽  
Shiya Zheng ◽  
Feng Jiang

Background Lung adenocarcinoma (LUAD) is the most common histologic subtype of lung cancer. Studies have found that miR-1293 is related to the survival of LUAD patients. Unfortunately, its role in LUAD remains not fully clarified. Methods miR-1293 expression and its association with LUAD patients’ clinical characteristics were analyzed in TCGA database. Also, miR-1293 expression was detected in LUAD cell lines. Cell viability, migration, invasion and expression of MMP2 and MMP9 were measured in LUAD cells following transfection with miR-1293 mimic or antagomir. Phosphoglucomutase (PGM) 5 was identified to be negatively related to miR-1293 in LUAD patients in TCGA database, and their association was predicated by Targetscan software. Hence, we further verified the relationship between miR-1293 and PGM5. Additionally, the effect and mechanism of miR-1293 were validated in a xenograft mouse model. Results We found miR-1293 expression was elevated, but PGM5 was decreased, in LUAD patients and cell lines. Higher miR-1293 expression was positively related to LUAD patients’ pathologic stage and poor overall survival. miR-1293 mimic significantly promoted, whereas miR-1293 antagomir suppressed the viability, migration, invasion, and expression of MMP2 and MMP9 in LUAD cells. PGM5 was a target of miR-1293. Overexpression of PGM5 abrogated the effects of miR-1293 on the malignant phenotypes of LUAD cells. Administration of miR-1293 antagomir reduced tumor volume and staining of Ki-67 and MMP9, but elevated PGM5 expression in vivo. Conclusions miR-1293 promoted the proliferation, migration and invasion of LUAD cells via targeting PGM5, which indicated that miR-1293 might serve as a potential therapeutic target for LUAD patients.


2020 ◽  
Vol 19 ◽  
pp. 153303382097754
Author(s):  
Rongchang Zhao ◽  
Dan Ding ◽  
Wenyan Yu ◽  
Chunrong Zhu ◽  
Yan Ding

Background: As a common pathological type of lung cancer, lung adenocarcinoma (LUAD) is mainly treated by surgery, chemotherapy, targeted therapy and radiotherapy. Although a relatively mature treatment system has been established, there are few studies on the microenvironment of LUAD. Material and Methods: The immune and stromal scores of patients from the LUAD cohort in the TCGA database were obtained by using ESTIMATE. The relationship of immune and stromal scores with the clinicopathological characteristics and overall survival of LUAD patients was assessed by R. GO, KEGG and Cox regression analyses were employed to analyze intersecting genes and to identify reliable prognostic markers. The identified genes were also analyzed in the GEPIA database to assess their correlations with survival, and these relationships were verified with the Kaplan-Meier Plotter database. Results: The immune score was related to the survival time and tumor topography of LUAD patients. There was a significant correlation between stromal score and tumor metastasis. Through multivariate analysis, stage (HR = 1.640, 95% CI = 1.019-2.642, P = 0.042) and risk score (HR = 1.036, 95% CI = 1.026-1.046, P < 0.001). The genes (ARHGAP15, BTLA, CASS4, CLECL1, FAM129C, STAP1, TESPA1, and S100P) showed credible prognostic value in LUAD patients in TCGA through GEPIA database online analysis and verification in the Kaplan-Meier plotter database. Conclusions: In the microenvironment of lung adenocarcinoma, the differentially expressed genes screened by immune score and stromal score have certain value in evaluating the survival/prognosis of patients, as well as the invasion and progression of tumors.


1999 ◽  
Vol 49 (6) ◽  
pp. 431-435
Author(s):  
Kayoko Hayakawa ◽  
Masatoshi Hasegawa ◽  
Miho Kawashima ◽  
Hisako Toda ◽  
Kazushige Hayakawa ◽  
...  

2017 ◽  
Vol 22 (3) ◽  
pp. 153-157
Author(s):  
Artak U. Panasyan ◽  
D. S Kobyakov ◽  
A. M Avdalyan ◽  
A. A Ivanov ◽  
E. L Lushnikova ◽  
...  

Study of markers of apoptosis and proliferation in relation to clinical and morphological parameters in non-small cell cancer (NSCLC) patients and healthy persons. There were investigated 237 surgery samples of NSCLC and 10 cases of normal lung tissues. p53, bcl-2, bax, Ki-67, topoisomerase IIα (ТороIIα) levels were determined by immunohistochemical method. Argyrophilic proteins associated with nucleolar organizer regions (AgNOR) were detected with silver nitrate. In NSCLC expression of p53, bcl-2, Ki-67, TopoIIα, AgNOR increased and expression of bax was lower if compared with the normal tissue. Expression of apoptotic markers (p53, bcl-2, bax) correlated with clinical and morphological parameters of NSCLC: histogenesis, N index and the stage (for bcl-2), gender (for bax). Expression of Ki-67 and TopoIIα correlated with gender, largest size of the tumor, histogenesis and differentiation. AgNOR proteins were interrelated with the gender, T and N indices, largest tumor dimension, stage, histogenesis and differentiation. In NSCLC cases the expression of apoptotic markers correlated with proliferation: in p53 positive tumors - high level of proliferation (Ki-67, TopoIIα, AgNOR), in bcl-2 positive tumors - low AgNOR, in bax positive tumors - low proliferative activity (Ki-67, TopoIIα). In NSCLC there is observed the change in expression of apoptotic markers (p53, bcl-2, bax) and proliferation (Ki-67, TopoIIα, AgNOR) in conjunction with normal tissue and clinical and morphological parameters of tumor.


Medicine ◽  
2020 ◽  
Vol 99 (2) ◽  
pp. e18678
Author(s):  
Jingang Yan ◽  
Heping Wang ◽  
Haiwei Zhou ◽  
Hui He ◽  
Lin Qiu ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document