1
|
Andronic M, Scripcariu DV, Palaghia MM, Trofin AM, Bejan V, Scripcariu V. Clinical Pathological and Immunohistochemical Correlations in Gastric Cancer. Diagnostics (Basel) 2024; 14:1367. [PMID: 39001256 PMCID: PMC11241519 DOI: 10.3390/diagnostics14131367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2024] [Revised: 06/13/2024] [Accepted: 06/26/2024] [Indexed: 07/16/2024] Open
Abstract
Due to its high aggressiveness and polyclonal tumor state, stomach cancer is considered a severe health problem. In this study, we analyzed Her2 and Ki67 in correlation with patient data for the possibility of prognostic factors. The study included 48 cases of gastric tumors that had been surgically treated in a period of five years. The percentage was statistically significant for intestinal-type adenocarcinomas located in the medio-gastric region (p = 0.05); in the diffuse subtype, there were no Her2 positive samples, and in the mixed subtype only one out of three samples was Her2 positive. Our results confirm the existing data, and we can conclude that this link can be considered a prognostic factor in the progression and treatment effectiveness.
Collapse
Affiliation(s)
- Mihaela Andronic
- First Surgical Clinic, Saint Spiridon Clinical Hospital, 700111 Iași, Romania
| | - Dragoș-Viorel Scripcariu
- Surgery Department, Regional Institute of Oncology Iași, 700483 Iasi, Romania (V.S.)
- Faculty of Medicine, University of Medicine and Farmacy “Grigore. T. Popa” Iasi, 700115 Iasi, Romania;
| | - Mădălina Maria Palaghia
- First Surgical Clinic, Saint Spiridon Clinical Hospital, 700111 Iași, Romania
- Faculty of Medicine, University of Medicine and Farmacy “Grigore. T. Popa” Iasi, 700115 Iasi, Romania;
| | - Ana-Maria Trofin
- Faculty of Medicine, University of Medicine and Farmacy “Grigore. T. Popa” Iasi, 700115 Iasi, Romania;
- Second Surgical Clinic, Saint Spiridon Clinical Hospital, 700111 Iași, Romania
| | - Valentin Bejan
- First Surgical Clinic, Saint Spiridon Clinical Hospital, 700111 Iași, Romania
- Faculty of Medicine, University of Medicine and Farmacy “Grigore. T. Popa” Iasi, 700115 Iasi, Romania;
| | - Viorel Scripcariu
- Surgery Department, Regional Institute of Oncology Iași, 700483 Iasi, Romania (V.S.)
- Faculty of Medicine, University of Medicine and Farmacy “Grigore. T. Popa” Iasi, 700115 Iasi, Romania;
| |
Collapse
|
2
|
Bernhardt M, Behrens HM, Krüger S, Röcken C. Exploration of the Tumour Biological Significance of PCLO in Gastric Cancer: Results from a Large Central European Cohort. Pathobiology 2023; 91:187-195. [PMID: 37935138 PMCID: PMC11126201 DOI: 10.1159/000534889] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Accepted: 10/16/2023] [Indexed: 11/09/2023] Open
Abstract
INTRODUCTION A recent multiregional whole-exome sequencing of 48 tumour samples from 9 gastric adenocarcinomas discovered PCLO mutations in 23 (47.9%) tumour samples. Based on that unexpected high prevalence of PCLO mutations, we hypothesized a tumour biological significance of PCLO in gastric cancer (GC). METHODS Tumour samples (whole tissue sections) obtained from 466 patients resected for therapy-naive GC were stained with an anti-PCLO antibody. The histoscore for tumour cells and the presence of immunostaining of stromal cells and tumour vessels was documented for each case. An algorithm for PCLO immunopositivity was formed and correlated with clinicopathological patient characteristics. RESULTS 175 GCs were classified as PCLO positive within tumour cells, and 291 as negative. Stromal cells were positive for PCLO in 106 cases and tumour vessels in 84. PCLO-positive GCs more often showed an intestinal phenotype, a lower T category and were more commonly associated with Helicobacter pylori infection. A separate analysis of PCLO expression in intestinal and diffuse type GCs, respectively, showed no significant correlations. Patients with PCLO negative/low tumour cells showed a shortened overall (14.0 ± 1.4 vs. 16.0 ± 1.8 months) and tumour-specific survival (15.0 ± 1.6 months vs. 17.9 ± 3.6). Comparison of PCLOs genotype with its phenotype in 48 tumour samples obtained from nine cases showed no direct correlations with missense mutations. CONCLUSION Our data provide evidence that PCLO is differentially expressed in GC and might delay tumour progression.
Collapse
Affiliation(s)
- Maximilian Bernhardt
- Department of Pathology, Christian-Albrechts-University, University Hospital Schleswig Holstein, Kiel, Germany
| | - Hans-Michael Behrens
- Department of Pathology, Christian-Albrechts-University, University Hospital Schleswig Holstein, Kiel, Germany
| | - Sandra Krüger
- Department of Pathology, Christian-Albrechts-University, University Hospital Schleswig Holstein, Kiel, Germany
| | - Christoph Röcken
- Department of Pathology, Christian-Albrechts-University, University Hospital Schleswig Holstein, Kiel, Germany
| |
Collapse
|
3
|
Tao Z, Xue R, Wei Z, Qin L, Bai R, Liu N, Wang J, Wang C. The assessment of Ki-67 for prognosis of gastroenteropancreatic neuroendocrine neoplasm patients: a systematic review and meta-analysis. Transl Cancer Res 2023; 12:1980-1991. [PMID: 37701110 PMCID: PMC10493787 DOI: 10.21037/tcr-23-248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Accepted: 08/01/2023] [Indexed: 09/14/2023]
Abstract
Background Neuroendocrine neoplasm (NEN) is a group of rare tumors. Among which, gastroenteropancreatic neuroendocrine neoplasm (GEP-NEN) is the most common group. The World Health Organization (WHO) classified these tumors into three different grades (G1, G2, and G3) based on Ki-67 and mitotic rate, and updated the classification in 2019. Several previous studies proved that Ki-67 was related to tumor prognosis, but others still reported that Ki-67 had no predictive value for tumor prognosis. There are different conclusions between studies regarding the correlation between Ki-67 and tumor prognosis, and there is a lack of studies about this correlation of GEP-NENs. Further analysis is still needed to evaluate the prognostic value of Ki-67 in GEP-NENs, to provide reference for clinical decisions. Methods A total of 303 studies were retrieved that included Ki-67, GEP-NENs, prognosis, survival, and other subject terms and keywords. We excluded studies that did not show complete Ki-67 index, number of patients and 5-year survival data available for meta-analysis, non-cohort studies, articles published before 2000 or not published in English. Fifteen studies were finally included to assess the value of Ki-67 in the prognosis of patients with GEP-NENs using a random-effects model. Results The cumulative 5-year survival rate for GEP-NEN G1 (Ki-67 ≤2%), G2 (Ki-67 2-20%) and G3 (Ki-67 >20%) was 86%, 65%, 25% respectively. The 5-year survival rate of GEP-NEN G1 (Ki-67 <3%, first revised in WHO classification 2017, redefined WHO classification 2019) and G1 (Ki-67 ≤2%, WHO classification 2010) was 97% and 84% respectively. Conclusions The overall prognosis of GEP-NENs patients showed a decreasing trend with the increase of Ki-67, which confirmed the significance of Ki-67 index as a prognostic marker for the prognosis of GEP-NENs. Increasing the cut-off value of Ki-67 index for G1 grade from ≤2% to <3% according to WHO classification 2019 did not significantly decrease the 5-year survival rate.
Collapse
Affiliation(s)
| | - Runxin Xue
- Department of Gastroenterology, The Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Zhongcao Wei
- Department of Gastroenterology, The Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Lingzhi Qin
- Department of Gastroenterology, The Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Rui Bai
- Department of Gastroenterology, The Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Na Liu
- Department of Gastroenterology, The Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Jinhai Wang
- Department of Gastroenterology, The Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | | |
Collapse
|
4
|
Mao LT, Chen WC, Lu JY, Zhang HL, Ye YS, Zhang Y, Liu B, Deng WW, Liu X. Quantitative parameters in novel spectral computed tomography: Assessment of Ki-67 expression in patients with gastric adenocarcinoma. World J Gastroenterol 2023; 29:1458-1469. [DOI: 10.3748/wjg.v29.i10.1458] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/10/2023] Open
Abstract
BACKGROUND The level of Ki-67 expression has served as a prognostic factor in gastric cancer. The quantitative parameters based on the novel dual-layer spectral detector computed tomography (DLSDCT) in discriminating the Ki-67 expression status are unclear.
AIM To investigate the diagnostic ability of DLSDCT-derived parameters for Ki-67 expression status in gastric carcinoma (GC).
METHODS Dual-phase enhanced abdominal DLSDCT was performed preoperatively in 108 patients with gastric adenocarcinoma. Primary tumor monoenergetic CT attenuation value at 40-100 kilo electron volt (kev), the slope of the spectral curve (λHU), iodine concentration (IC), normalized IC (nIC), effective atomic number (Zeff) and normalized Zeff (nZeff) in the arterial phase (AP) and venous phase (VP) were retrospectively compared between patients with low and high Ki-67 expression in gastric adenocarcinoma. Spearman’s correlation coefficient was used to analyze the association between the above parameters and Ki-67 expression status. Receiver operating characteristic (ROC) curve analysis was performed to compare the diagnostic efficacy of the statistically significant parameters between two groups.
RESULTS Thirty-seven and 71 patients were classified as having low and high Ki-67 expression, respectively. CT40 kev-VP, CT70 kev-VP, CT100 kev-VP, and Zeff-related parameters were significantly higher, but IC-related parameters were lower in the group with low Ki-67 expression status than the group with high Ki-67 expression status, and other analyzed parameters showed no statistical difference between the two groups. Spearman’s correlation analysis showed that CT40 kev-VP, CT70 kev-VP, CT100 kev-VP, Zeff, and nZeff exhibited a negative correlation with Ki-67 status, whereas IC and nIC had positive correlation with Ki-67 status. The ROC analysis demonstrated that the multi-variable model of spectral parameters performed well in identifying the Ki-67 status [area under the curve (AUC) = 0.967; sensitivity 95.77%; specificity 91.89%)]. Nevertheless, the differentiating capabilities of single-variable model were moderate (AUC value 0.630 - 0.835). In addition, the nZeffVP and nICVP (AUC 0.835 and 0.805) showed better performance than CT40 kev-VP, CT70 kev-VP and CT100 kev-VP (AUC 0.630, 0.631 and 0.662) in discriminating the Ki-67 status.
CONCLUSION Quantitative spectral parameters are feasible to distinguish low and high Ki-67 expression in gastric adenocarcinoma. Zeff and IC may be useful parameters for evaluating the Ki-67 expression.
Collapse
Affiliation(s)
- Li-Ting Mao
- Department of Radiology, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou 510120, Guangdong Province, China
| | - Wei-Cui Chen
- Department of Radiology, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou 510120, Guangdong Province, China
| | - Jian-Ye Lu
- Department of Radiology, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou 510120, Guangdong Province, China
| | - Han-Liang Zhang
- Department of Radiology, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou 510120, Guangdong Province, China
| | - Yong-Song Ye
- Department of Radiology, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou 510120, Guangdong Province, China
| | - Yu Zhang
- Department of Pathology, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou 510120, Guangdong Province, China
| | - Bo Liu
- Department of Radiology, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou 510120, Guangdong Province, China
| | - Wei-Wei Deng
- Department of Scientific Research, Clinical & Technical Support, Philips Healthcare China, Shanghai 200040, China
| | - Xian Liu
- Department of Radiology, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou 510120, Guangdong Province, China
| |
Collapse
|
5
|
Mao LT, Chen WC, Lu JY, Zhang HL, Ye YS, Zhang Y, Liu B, Deng WW, Liu X. Quantitative parameters in novel spectral computed tomography: Assessment of Ki-67 expression in patients with gastric adenocarcinoma. World J Gastroenterol 2023; 29:1602-1613. [PMID: 36970586 PMCID: PMC10037253 DOI: 10.3748/wjg.v29.i10.1602] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Revised: 12/23/2022] [Accepted: 01/16/2023] [Indexed: 03/14/2023] Open
Abstract
BACKGROUND The level of Ki-67 expression has served as a prognostic factor in gastric cancer. The quantitative parameters based on the novel dual-layer spectral detector computed tomography (DLSDCT) in discriminating the Ki-67 expression status are unclear.
AIM To investigate the diagnostic ability of DLSDCT-derived parameters for Ki-67 expression status in gastric carcinoma (GC).
METHODS Dual-phase enhanced abdominal DLSDCT was performed preoperatively in 108 patients with gastric adenocarcinoma. Primary tumor monoenergetic CT attenuation value at 40-100 kilo electron volt (kev), the slope of the spectral curve (λHU), iodine concentration (IC), normalized IC (nIC), effective atomic number (Zeff) and normalized Zeff (nZeff) in the arterial phase (AP) and venous phase (VP) were retrospectively compared between patients with low and high Ki-67 expression in gastric adenocarcinoma. Spearman’s correlation coefficient was used to analyze the association between the above parameters and Ki-67 expression status. Receiver operating characteristic (ROC) curve analysis was performed to compare the diagnostic efficacy of the statistically significant parameters between two groups.
RESULTS Thirty-seven and 71 patients were classified as having low and high Ki-67 expression, respectively. CT40 kev-VP, CT70 kev-VP, CT100 kev-VP, and Zeff-related parameters were significantly higher, but IC-related parameters were lower in the group with low Ki-67 expression status than the group with high Ki-67 expression status, and other analyzed parameters showed no statistical difference between the two groups. Spearman’s correlation analysis showed that CT40 kev-VP, CT70 kev-VP, CT100 kev-VP, Zeff, and nZeff exhibited a negative correlation with Ki-67 status, whereas IC and nIC had positive correlation with Ki-67 status. The ROC analysis demonstrated that the multi-variable model of spectral parameters performed well in identifying the Ki-67 status [area under the curve (AUC) = 0.967; sensitivity 95.77%; specificity 91.89%)]. Nevertheless, the differentiating capabilities of single-variable model were moderate (AUC value 0.630 - 0.835). In addition, the nZeffVP and nICVP (AUC 0.835 and 0.805) showed better performance than CT40 kev-VP, CT70 kev-VP and CT100 kev-VP (AUC 0.630, 0.631 and 0.662) in discriminating the Ki-67 status.
CONCLUSION Quantitative spectral parameters are feasible to distinguish low and high Ki-67 expression in gastric adenocarcinoma. Zeff and IC may be useful parameters for evaluating the Ki-67 expression.
Collapse
Affiliation(s)
- Li-Ting Mao
- Department of Radiology, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou 510120, Guangdong Province, China
| | - Wei-Cui Chen
- Department of Radiology, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou 510120, Guangdong Province, China
| | - Jian-Ye Lu
- Department of Radiology, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou 510120, Guangdong Province, China
| | - Han-Liang Zhang
- Department of Radiology, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou 510120, Guangdong Province, China
| | - Yong-Song Ye
- Department of Radiology, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou 510120, Guangdong Province, China
| | - Yu Zhang
- Department of Pathology, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou 510120, Guangdong Province, China
| | - Bo Liu
- Department of Radiology, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou 510120, Guangdong Province, China
| | - Wei-Wei Deng
- Department of Scientific Research, Clinical & Technical Support, Philips Healthcare China, Shanghai 200040, China
| | - Xian Liu
- Department of Radiology, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou 510120, Guangdong Province, China
| |
Collapse
|
6
|
Pries K, Krüger S, Heckl S, Behrens HM, Röcken C. SMARCA4 and SMARCE1 in gastric cancer: Correlation with ARID1A, and microsatellite stability, and SMARCE1/ERBB2 co-amplification. Cancer Med 2023; 12:10423-10437. [PMID: 36916408 DOI: 10.1002/cam4.5776] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 02/05/2023] [Accepted: 02/24/2023] [Indexed: 03/15/2023] Open
Abstract
BACKGROUND Recent studies have shown an association between certain subunits of the SWI/SNF complex with specific tumor characteristics in gastric cancer (GC). In an earlier study, we applied multiregional whole exome sequencing on multiple primary tumor samples and found alterations of the SWI/SNF complex in 78% of the cases. ERBB2, which encodes for Her2/neu, is a well-known predictive biomarker used to guide the treatment of GC in the palliative setting. SMARCE1, which encodes for a subunit of the SWI/SNF complex, is localized in close genetic proximity to ERBB2. AIM As little is known about the significance of the SWI/SNF complex in GC biology and the potential relationship between ERBB2 and SMARCE1 upregulation, we examined the expression patterns of SMARCA4 and SMARCE1, two mutually exclusive catalytic ATPase subunits of the SWI/SNF complex, in a well characterized GC cohort. MATERIALS AND METHODS The expression of SMARCA4 and SMARCE1 was studied by immunohistochemistry in connection with clinicopathological patient characteristics in a cohort of 468 GCs. Digital droplet polymerase chain reaction was performed for amplification analysis on ERBB2 and SMARCE1. RESULTS Immunohistochemical staining of whole-mount tissue sections found a diffusely "gray scale" expression of SMARCA4 in 446 (95.2%) GCs and of SMARCE1 in 463 (98.8%) GCs. The expression of SMARCA4 and SMARCE1 correlated significantly with ARID1A, p53, and microsatellite status. No correlation was found with the patient prognosis. The amplification analysis of SMARCE1 showed amplification in 4 of 34 cases. In 3 of 34 cases, SMARCE1 was co-amplified with ERBB2. We also found a co-expression of SMARCE1 and Her2/neu in a subset of patients. CONCLUSION While the effect of a co-amplification is currently unknown, synergistic effects of SMARCE1 and Her2/neu overexpression should be explored in future studies, holding potential for an improved treatment of GC.
Collapse
Affiliation(s)
- Katharina Pries
- Department of Pathology, Christian-Albrechts-University, University-Hospital Schleswig-Holstein, Kiel, Germany
| | - Sandra Krüger
- Department of Pathology, Christian-Albrechts-University, University-Hospital Schleswig-Holstein, Kiel, Germany
| | - Steffen Heckl
- Department of Internal Medicine II, Christian-Albrechts-University, University-Hospital Schleswig-Holstein, Kiel, Germany
| | - Hans-Michael Behrens
- Department of Pathology, Christian-Albrechts-University, University-Hospital Schleswig-Holstein, Kiel, Germany
| | - Christoph Röcken
- Department of Pathology, Christian-Albrechts-University, University-Hospital Schleswig-Holstein, Kiel, Germany
| |
Collapse
|
7
|
Holm B, Barsuhn S, Behrens HM, Krüger S, Röcken C. The tumor biological significance of RNF43 and LRP1B in gastric cancer is complex and context-dependent. Sci Rep 2023; 13:3191. [PMID: 36823311 PMCID: PMC9950470 DOI: 10.1038/s41598-023-30294-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2022] [Accepted: 02/21/2023] [Indexed: 02/25/2023] Open
Abstract
Gastric cancer (GC) is the fifth most common cancer in the world with a poor prognosis. Both RNF43 and LRP1B function as tumor suppressors in the Wnt signaling pathway and have been described to be frequently mutated in GC. In this study of a large and well characterized cohort of 446 GCs we explored the significance of expression of RNF43 and LRP1B and their correlations with clinicopathological patient characteristics. Immunostaining of whole mount tissue sections was documented with the histoscore. Dichotomized at the median, we separated the cohort into a low/negative and a high/positive group of RNF43 and LRP1B expression, respectively. Apart from the entire cohort, we also examined the intestinal and diffuse type GCs separately. Regarding the entire cohort, the expression of RNF43 and LRP1B correlated significantly with the Lauren phenotype and with each other. Interestingly, differences were noted regarding RNF43 between the intestinal and diffuse type GCs. Survival analysis of the intestinal type GCs showed that RNF43 low/negative GCs tended to have a better outcome compared with RNF43 high/positive GCs [24.5 months overall survival (OS) and 25.0 months tumor-specific survival (TSS) vs. 14.1 months OS and 17.9 months TSS, respectively]. To the contrary, diffuse type GCs with RNF43 low/negative had a worse outcome compared with RNF43 high/positive GCs (12.9 months OS and 18.2 months TSS vs. 17.1 months OS and 21.5 months TSS, respectively). On multivariate analysis, RNF43 low/negative versus high/positive was an independent prognosticator of survival in diffuse type GC (hazard ratio 2.393 for OS and 2.398 for TSS). These data support the contention that the expression and biological effect of RNF43 and LRP1B in GC is context-dependent.
Collapse
Affiliation(s)
- Bente Holm
- grid.9764.c0000 0001 2153 9986Department of Pathology, Christian-Albrechts-University, Kiel, Germany
| | - Stephan Barsuhn
- grid.9764.c0000 0001 2153 9986Department of Pathology, Christian-Albrechts-University, Kiel, Germany
| | - Hans-Michael Behrens
- grid.9764.c0000 0001 2153 9986Department of Pathology, Christian-Albrechts-University, Kiel, Germany
| | - Sandra Krüger
- grid.9764.c0000 0001 2153 9986Department of Pathology, Christian-Albrechts-University, Kiel, Germany
| | - Christoph Röcken
- Department of Pathology, Christian-Albrechts-University, Kiel, Germany. .,Department of Pathology, Christian-Albrechts-University, University Hospital Schleswig-Holstein, Arnold-Heller-Str. 3, Haus 14, 24105, Kiel, Germany.
| |
Collapse
|
8
|
Intratumoral heterogeneity affects tumor regression and Ki67 proliferation index in perioperatively treated gastric carcinoma. Br J Cancer 2023; 128:375-386. [PMID: 36347963 PMCID: PMC9902476 DOI: 10.1038/s41416-022-02047-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2022] [Revised: 10/20/2022] [Accepted: 10/24/2022] [Indexed: 11/11/2022] Open
Abstract
BACKGROUND Intratumoral heterogeneity (ITH) is a major problem in gastric cancer (GC). We tested Ki67 and tumor regression for ITH after neoadjuvant/perioperative chemotherapy. METHODS 429 paraffin blocks were obtained from 106 neoadjuvantly/perioperatively treated GCs (one to five blocks per case). Serial sections were stained with Masson's trichrome, antibodies directed against cytokeratin and Ki67, and finally digitalized. Tumor regression and three different Ki67 proliferation indices (PI), i.e., maximum PI (KiH), minimum PI (KiL), and the difference between KiH/KiL (KiD) were obtained per block. Statistics were performed in a block-wise (all blocks irrespective of their case-origin) and case-wise manner. RESULTS Ki67 and tumor regression showed extensive ITH in our series (maximum ITH within a case: 31% to 85% for KiH; 4.5% to 95.6% for tumor regression). In addition, Ki67 was significantly associated with tumor regression (p < 0.001). Responders (<10% residual tumor, p = 0.016) exhibited prolonged survival. However, there was no significant survival benefit after cut-off values were increased ≥20% residual tumor mass. Ki67 remained without prognostic value. CONCLUSIONS Digital image analysis in tumor regression evaluation might help overcome inter- and intraobserver variability and validate classification systems. Ki67 may serve as a sensitivity predictor for chemotherapy and an indicator of ITH.
Collapse
|
9
|
Maia R, Santos GAD, Reis S, Viana NI, Pimenta R, Guimarães VR, Recuero S, Romão P, Leite KRM, Srougi M, Passerotti CC. Can we use Ki67 expression to predict prostate cancer aggressiveness? Rev Col Bras Cir 2022; 49:e20223200. [PMID: 35792806 PMCID: PMC10578861 DOI: 10.1590/0100-6991e-20223200-en] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Accepted: 04/06/2022] [Indexed: 11/22/2022] Open
Abstract
INTRODUCTION specialists have an urge for biomarkers that can discriminate indolent prostate cancer from aggressive tumors. Ki67 is a proliferation marker, and its expression is associated with the aggressiveness of several cancers. OBJECTIVE analyze the expression of Ki67 in prostate cancer samples correlating with the aggressiveness of the disease. METHODS Ki67 mRNA levels were determined utilizing data from a TCGA cohort (Tumor(n)=492 and control(n)=52). The protein expression was determined on 94 biopsies from patients by immunohistochemical assay. RESULTS in mRNA, the Ki67 upregulation is associated with cancer tissue (p<0.0001) and worst disease-free survival (p=0.035). The protein upregulation is associated with increase of the ISUP score (p<0.0001), cancer stage (p=0.05), biochemical recurrence (p=0.0006) and metastasis (p<0.0001). We also show a positive correlation between Ki67 expression and ISUP score (r=0.5112, p<0.0001) and disease risk stratification (r=0.3388, p=0.0009). Ki67 expression is a factor independently associated with biochemical recurrence (p=0.002) and metastasis (p<0.0001). Finally, the patients with high Ki67expression shows better survival regarding biochemical recurrence (p=0.008) and metastasis (p=0.056). Patients with high Ki67 expression are 2.62 times more likely to develop biochemical recurrence (p=0.036). CONCLUSION Ki67 upregulation is associated with prostate cancer aggressiveness.
Collapse
Affiliation(s)
- Ronaldo Maia
- - Hospital Alemão Oswaldo Cruz, Center for Robotic Surgery - São Paulo - SP - Brasil
| | - Gabriel Arantes Dos Santos
- - Faculdade de Medicina da Universidade de São Paulo (FMUSP), Urologia - São Paulo - SP - Brasil
- - D'Or Institute for Research and Education (IDOR) - São Paulo - SP - Brasil
| | - Sabrina Reis
- - Faculdade de Medicina da Universidade de São Paulo (FMUSP), Urologia - São Paulo - SP - Brasil
- - Hospital Moriah - São Paulo - SP - Brasil
- - Universidade do Estado de Minas Gerais (UEMG) - Passos - MG - Brasil
| | - Nayara I Viana
- - Hospital Alemão Oswaldo Cruz, Center for Robotic Surgery - São Paulo - SP - Brasil
| | - Ruan Pimenta
- - Faculdade de Medicina da Universidade de São Paulo (FMUSP), Urologia - São Paulo - SP - Brasil
- - D'Or Institute for Research and Education (IDOR) - São Paulo - SP - Brasil
| | - Vanessa R Guimarães
- - Faculdade de Medicina da Universidade de São Paulo (FMUSP), Urologia - São Paulo - SP - Brasil
| | - Saulo Recuero
- - Faculdade de Medicina da Universidade de São Paulo (FMUSP), Urologia - São Paulo - SP - Brasil
| | - Poliana Romão
- - Faculdade de Medicina da Universidade de São Paulo (FMUSP), Urologia - São Paulo - SP - Brasil
| | | | - Miguel Srougi
- - Faculdade de Medicina da Universidade de São Paulo (FMUSP), Urologia - São Paulo - SP - Brasil
- - D'Or Institute for Research and Education (IDOR) - São Paulo - SP - Brasil
| | | |
Collapse
|
10
|
Relationship of prognostic factors in stomach cancer with Helicobacter pylori: A retrospective study. Acta Gastroenterol Belg 2022; 85:35-45. [PMID: 35304992 DOI: 10.51821/85.1.7352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Background and study aims The prognostic value of H. pylori, which infects more than half of the human population living in the world and plays a role in gastric cancer pathogenesis, is controversial. Our aim is to investigate the relationship between H. pylori and prognostic factors in gastric cancer. Patients and methods The data of 110 patients (38 females and 72 males) that underwent surgeries due to gastric cancer between 2014 and 2017 were retrospectively analyzed. The relationships between survival (disease-free and overall) and factors such as p53, HER2/neu, Ki-67, neutrophil and platelet lymphocyte ratio (NLR / PLR), histopathological and demographic characteristics were examined. In addition, the results of H. pylori positive and negative groups were compared. Results Sixty-one (55%) patients were H. pylori negative and 49 (45%) were positive. In multivariate analysis, TNM stage, lymph node capsule invasion and NLR were determined as independent prognostic factors in both disease-free and overall survival. Age>62 and PLR>14.3 were determined as independent predictive factors of poor prognosis in overall survival. In univariate analysis, tumor diameter of >4.3 cm, lymphovascular and perineural invasion, and diffuse p53 expression were determined as predictive factors of poor prognosis in disease-free and overall survival. The effectiveness of these markers in prognosis was not different between H. pylori negative and positive groups. Conclusion While age, tumor diameter, TNM stage, lymph node capsule invasion, perineural and lymphovascular invasion, diffuse p53, PLR, and NLR were determined as prognostic factors in gastric cancer, these factors were not affected by the presence of H. pylori.
Collapse
|
11
|
MAIA RONALDO, SANTOS GABRIELARANTESDOS, REIS SABRINA, VIANA NAYARAI, PIMENTA RUAN, GUIMARÃES VANESSAR, RECUERO SAULO, ROMÃO POLIANA, LEITE KATIARAMOSMOREIRA, SROUGI MIGUEL, PASSEROTTI CARLOCARMARGO. Podemos usar a expressão de Ki67 para prever a agressividade do câncer de próstata? Rev Col Bras Cir 2022. [DOI: 10.1590/0100-6991e-20223200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
RESUMO Introdução: especialistas precisam biomarcadores que podem discriminar o câncer de próstata indolente de tumores agressivos. Ki67 é um marcador de proliferação, e sua expressão está associada à agressividade de vários tumores. Objetivo: analisar a expressão do Ki67 em amostras de câncer de próstata correlacionando com a agressividade da doença. Métodos: os níveis de mRNA de Ki67 foram determinados utilizando dados de uma coorte de TCGA (Tumor(n)=492 e controle(n)=52). A expressão da proteína foi determinada em 94 biópsias de pacientes por ensaio imuno-histoquímica. Resultados: no mRNA, a superexpressão Ki67 está associada ao tecido canceroso (p<0,0001) e à pior sobrevida livre de doença (p=0,035). A superexpressão proteica está associada ao aumento do escore ISUP (p<0,0001), estágio de câncer (p=0,05), recorrência bioquímica (p=0,0006) e metástase (p<0,0001). Também mostramos uma correlação positiva entre a expressão Ki67 e o escore ISUP (r=0,5112, p<0,0001) e a estratificação de risco de doença (r=0,3388, p=0,0009). A expressão Ki67 é um fator independentemente associado à recorrência bioquímica (p=0,002) e metástase (p<0,0001). Finalmente, os pacientes com alta expressão de Ki67 expression mostram melhor sobrevivência em relação à recorrência bioquímica (p=0,008) e metástase (p=0,056). Os pacientes com alta expressão de Ki67 são 2,62 vezes mais propensos a desenvolver recorrência bioquímica (p=0,036). Conclusão: a superexpressão Ki67 está associada à agressividade do câncer de próstata.
Collapse
Affiliation(s)
| | | | - SABRINA REIS
- Universidade de São Paulo, Brazil; Hospital Moriah, Brasil; Universidade do Estado de Minas Gerais, Brazil
| | | | - RUAN PIMENTA
- Universidade de São Paulo, Brazil; D’Or Institute for Research and Education, Brasil
| | | | | | | | | | - MIGUEL SROUGI
- Universidade de São Paulo, Brazil; D’Or Institute for Research and Education, Brasil
| | | |
Collapse
|
12
|
Kim S, Kim YJ, Chung WC. HER-2 positivity is a high risk of recurrence of stage I gastric cancer. Korean J Intern Med 2021; 36:1327-1337. [PMID: 34428882 PMCID: PMC8588971 DOI: 10.3904/kjim.2020.243] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Accepted: 10/17/2020] [Indexed: 01/04/2023] Open
Abstract
BACKGROUND/AIMS The treatment of gastric cancer remains unsatisfactory. We aimed to investigate the prognostic value of immunohistochemical staining in gastric cancer. METHODS We analyzed 505 (279 early staged, 226 advanced-staged) gastric cancer tissues from patients who underwent radical gastric resection between January 2014 and December 2016. Available surgical specimens immunohistochemically stained for p53, epidermal growth factor receptor (EGFR), human EGFR 2 (HER-2), E-cadherin, and Ki-67 were reviewed. We evaluated the association between positivity to various biomarkers and disease recurrence, disease-free survival, lymph node metastasis, and microscopic lymphovascular invasion. RESULTS The median follow-up duration was 32.5 months (range, 7 to 70). Advanced gastric cancer cases showed high Ki-67 expression; other cases showed unremarkable expression. Concerning disease recurrence, lymphatic invasion, and disease-free interval, all biomarkers had no prognostic effects. HER-2-positive stage I gastric cancer tended to occur in old patients and in the upper one-third of the stomach (p = 0.01). HER-2 positivity was significantly correlated with disease recurrence (p = 0.01), lymphatic invasion (p = 0.03), and vascular invasion (p = 0.03) in stage I cases. CONCLUSION Only HER-2 was associated with the recurrence of stage I gastric cancer. HER-2-positive stage I gastric cancer requires additional therapy despite curative resection.
Collapse
Affiliation(s)
- Seonhoo Kim
- Department of Internal Medicine, St. Vincent's Hospital, College of Medicine, The Catholic University of Korea, Suwon, Korea
| | - Yeon-Ji Kim
- Department of Internal Medicine, St. Vincent's Hospital, College of Medicine, The Catholic University of Korea, Suwon, Korea
| | - Woo Chul Chung
- Department of Internal Medicine, St. Vincent's Hospital, College of Medicine, The Catholic University of Korea, Suwon, Korea
| |
Collapse
|
13
|
Relationship of prognostic factors in stomach cancer with helicobacter pylori: a retrospective study. Acta Gastroenterol Belg 2021; 84:607-617. [PMID: 34965043 DOI: 10.51821/84.4.012] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
BACKGROUND AND STUDY AIMS The prognostic value of H. pylori, which infects more than half of the human population living in the world and plays a role in gastric cancer pathogenesis, is controversial. Our aim is to investigate the relationship between H. pylori and prognostic factors in gastric cancer. PATIENTS AND METHODS The data of 110 patients (38 females and 72 males) that underwent surgeries due to gastric cancer between 2014 and 2017 were retrospectively analyzed. The relationships between survival (disease-free and overall) and factors such as p53, HER2/neu, Ki-67, neutrophil and platelet lymphocyte ratio (NLR / PLR), histopathological and demographic characteristics were examined. In addition, the results of H. pylori positive and negative groups were compared. RESULTS Sixty-one (55%) patients were H. pylori negative and 49 (45%) were positive. In multivariate analysis, TNM stage, lymph node capsule invasion and NLR were determined as independent prognostic factors in both disease-free and overall survival. Age>62 and PLR>14.3 were determined as independent predictive factors of poor prognosis in overall survival. In univariate analysis, tumor diameter of >4.3 cm, lymphovascular and perineural invasion, and diffuse p53 expression were determined as predictive factors of poor prognosis in disease-free and overall survival. The effectiveness of these markers in prognosis was not different between H. pylori negative and positive groups. CONCLUSION While age, tumor diameter, TNM stage, lymph node capsule invasion, perineural and lymphovascular invasion, diffuse p53, PLR, and NLR were determined as prognostic factors in gastric cancer, these factors were not affected by the presence of H. pylori.
Collapse
|
14
|
Lin H, Wang J, Wang T, Wu J, Wang P, Huo X, Zhang J, Pan H, Fan Y. The LncRNA MIR503HG/miR-224-5p/TUSC3 Signaling Cascade Suppresses Gastric Cancer Development via Modulating ATF6 Branch of Unfolded Protein Response. Front Oncol 2021; 11:708501. [PMID: 34381729 PMCID: PMC8352579 DOI: 10.3389/fonc.2021.708501] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Accepted: 07/08/2021] [Indexed: 12/29/2022] Open
Abstract
Background Unfolded protein response (UPR)-mediated tumor-promoting functions have been identified in multiple cancers, and this study focused on investigating the role and molecular mechanisms of UPR in modulating gastric cancer (GC) pathogenesis. Methods The bioinformatics analysis was performed to examine the expression status of cancer associated genes in patients with stomach adenocarcinoma (STAD) and predict the targeting sites of miR-224-5p with LncRNA MIR503HG and TUSC3. Genes expressions were quantified by Real-Time qPCR, Western Blot and immunohistochemistry (IHC). Cell proliferation, viability, apoptosis and mobility were evaluated by MTT assay, trypan blue staining assay, flow cytometer and transwell assay, respectively. The binding sites were validated by dual-luciferase reporter gene system assay. Results LncRNA MIR503HG and TUSC3 were downregulated, but miR-224-5p was upregulated in GC tissues and cells, in contrast with their normal counterparts. Further gain- and loss-of-function experiments validated that the malignant phenotypes in GC cells, including cell proliferation, invasion, epithelial-mesenchymal transition (EMT) and tumorigenesis, were negatively regulated by LncRNA MIR503HG. Mechanistically, LncRNA MIR503HG upregulated TUSC3 in GC cells through sponging miR-224-5p, resulting in the repression of GC progression. Finally, we validated that knock-down of ATF6, but not other two branches of UPR (PERK1 and IRE1), partially rescued cell proliferation and EMT in the GC cells with LncRNA MIR503HG overexpression. Conclusions Targeting the LncRNA MIR503HG/miR-224-5p/TUSC3 signaling cascade suppressed ATF6-mediated UPR, resulting in the blockage of GC development.
Collapse
Affiliation(s)
- Han Lin
- Department of General Surgery, Key Laboratory of Hepatosplenic Surgery, Ministry of Education, The First Affiliated Hospital of Harbin Medical University, Harbin, China.,Department of Formulas of Chinese Medicine of Basic Medical College, Heilongjiang University of Chinese Medicine, Harbin, China
| | - Jinge Wang
- The Second Affiliated Hospital & College of Nursing, Harbin Medical University, Harbin, China
| | - Tong Wang
- Department of General Surgery, Key Laboratory of Hepatosplenic Surgery, Ministry of Education, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Jiaming Wu
- Department of General Surgery, Key Laboratory of Hepatosplenic Surgery, Ministry of Education, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Peng Wang
- Department of General Surgery, Key Laboratory of Hepatosplenic Surgery, Ministry of Education, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Xiaoyan Huo
- Department of General Surgery, Key Laboratory of Hepatosplenic Surgery, Ministry of Education, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Jun Zhang
- Department of General Surgery, Key Laboratory of Hepatosplenic Surgery, Ministry of Education, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Huayang Pan
- Department of General Surgery, Key Laboratory of Hepatosplenic Surgery, Ministry of Education, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Yuying Fan
- The Second Affiliated Hospital & College of Nursing, Harbin Medical University, Harbin, China
| |
Collapse
|
15
|
[Intratumoral heterogeneity of gastric cancer-impact on biomarker evaluation]. DER PATHOLOGE 2021; 41:76-82. [PMID: 33427920 DOI: 10.1007/s00292-020-00881-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 11/23/2020] [Indexed: 12/23/2022]
Abstract
BACKGROUND Gastric carcinomas often measure more than 5 cm at primary diagnosis. Predictive biomarker testing is usually carried out on tissue biopsies, which do not represent the entire tumor biology and intratumoral heterogeneity. OBJECTIVES The aim of this study was to explore gastric cancer's intratumoral heterogeneity and its impact on the evaluation of predictive and prognostic biomarkers. MATERIALS AND METHODS The study cohort consisted of approximately 500 patients with therapy-naive adenocarcinomas of the stomach or the esophagogastric junction. The following biomarkers were determined: HER2, MET, Ki67, PD-L1/PD‑1, VISTA, EBV-status, and PIK3CA. RESULTS All examined biomarkers were influenced by gastric cancer's intratumoral heterogeneity. Tissue biopsies might carry the risk of sampling errors, which may significantly hamper adequate tumor classification in a clinical setting. CONCLUSIONS Our findings unravel issues of tumor heterogeneity in gastric cancer. Biomarker diagnostics on tissue biopsies should be carried out on at least five biopsies of different tumor areas. If possible, biomarker diagnostics should be repeated on resection specimens. Tissue microarrays should no longer be used for research studies of gastric cancer.
Collapse
|
16
|
Expression and significance of Her2 and Ki-67 in gastric adenocarcinoma without distant metastasis: a cohort study. BMC Gastroenterol 2020; 20:343. [PMID: 33059614 PMCID: PMC7566118 DOI: 10.1186/s12876-020-01484-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/12/2019] [Accepted: 10/06/2020] [Indexed: 01/19/2023] Open
Abstract
Background The significance of human epidermal growth factor receptor 2 (Her2) and nucleus-associated antigen Ki-67 expression remains controversial in gastric adenocarcinoma (GaC). The aim of this study was to investigate the expression and clinicopathologic and prognostic significance of Her2 and Ki-67 in resected GaC without distant metastasis. Methods Malignant tissues and clinicopathologic data were obtained from 195 patients with resected non-metastatic GaC. Immunohistochemistry staining was performed to examine the expression of Her2 and Ki-67; their association with clinicopathologic factors were investigated using logistic regression, and their association with survival was explored using Kaplan–Meier analysis and Cox proportional hazards regression. Results Her2 was majorly expressed in cell membrane and Ki-67 in cell nucleus in non-metastatic GaC. Stronger Her2 expression was significantly associated with better tumor differentiation, neurovascular invasion, less advanced pathological tumor (pT) stage, and more advanced pathological node (pN) stage; while Ki-67 expression was not significantly associated with any investigated clinicopathologic factors. Patients with both negative Her2 and negative Ki-67 expression had poorer tumor differentiation, and more advanced pT and pathological tumor-node-metastasis (pTNM) stages; the association with pT and pTNM stages were further confirmed by multivariable analyses, especially in node-negative disease. Her2 or Ki-67 alone was not significantly associated with pTNM stage. A strongly positive (+++) Her2 expression was associated with poorer survival in multivariable analysis only (P = 0.047); while Ki-67 or combined expression was not significantly associated with prognosis. Conclusions In non-metastatic GaC, Her2 expression and combined expression of Her2 and Ki-67 were associated with several clinicopathologic factors including tumor differentiation and stage, and only a +++ Her2 expression was associated with poorer prognosis in multivariable analysis with marginal significance in this study; while Ki-67 alone had both limited clinicopathologic and prognostic values.
Collapse
|
17
|
Najafi M, Mortezaee K, Rahimifard M, Farhood B, Haghi-Aminjan H. The role of curcumin/curcuminoids during gastric cancer chemotherapy: A systematic review of non-clinical study. Life Sci 2020; 257:118051. [DOI: 10.1016/j.lfs.2020.118051] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Revised: 07/01/2020] [Accepted: 07/01/2020] [Indexed: 02/07/2023]
|
18
|
Mizuno Y, Hattori K, Taniguchi K, Tanaka K, Uchiyama K, Hirose Y. Intratumoral heterogeneity of glutaminase and lactate dehydrogenase A protein expression in colorectal cancer. Oncol Lett 2020; 19:2934-2942. [PMID: 32218849 PMCID: PMC7068422 DOI: 10.3892/ol.2020.11390] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Accepted: 01/21/2020] [Indexed: 12/17/2022] Open
Abstract
The high expression of metabolic enzymes, including glutaminase (GA) and lactate dehydrogenase A (LDHA), which contribute to bioenergetics and biosynthesis of mammalian cells, has been identified in a variety of cancer types. The current study indicated intratumoral heterogeneity with respect to protein expression of the metabolic enzymes in colorectal cancer (CRC). GA protein expression was determined using immunohistochemistry in 98 cases of surgically resected T3 CRC. A total of 75 cases (74%) exhibited moderate to strong immunopositivity of GA based on whole-section examination. A significant correlation was demonstrated between GA expression and clinicopathological features, including histological type and tumor budding in a patient population. Detailed histological analysis revealed the upregulation of GA protein expression at the invasive margin, including tumor budding of CRC tissues. Semi-quantitative examination revealed a significant difference in immunoexpression level of GA between the invasive margin and central CRC. However, LDHA expression exhibited an opposite pattern, with expression elevated at the center and significantly decreased at the tumors invasive margin. Immunohistochemical expression of another glycolytic enzyme hexokinase II was equivalent in both regions. Furthermore, gene silencing of GLS1, which encodes GA protein, and GA inhibitor treatment significantly inhibited cell growth of CRC cell lines. Therefore, the results of the present study demonstrated that the alteration in GA and LDHA expression is more prominent at the invasive margin, which involves tumor budding in CRC.
Collapse
Affiliation(s)
- Yuta Mizuno
- Department of Pathology, Osaka Medical College, Takatsuki, Osaka 569-8686, Japan.,Department of General and Gastroenterological Surgery, Osaka Medical College, Takatsuki, Osaka 569-8686, Japan
| | - Kimiaki Hattori
- Department of Pathology, Osaka Medical College, Takatsuki, Osaka 569-8686, Japan
| | - Kohei Taniguchi
- Department of General and Gastroenterological Surgery, Osaka Medical College, Takatsuki, Osaka 569-8686, Japan.,Department of Translational Research Program, Osaka Medical College, Takatsuki, Osaka 569-8686, Japan
| | - Keitaro Tanaka
- Department of General and Gastroenterological Surgery, Osaka Medical College, Takatsuki, Osaka 569-8686, Japan
| | - Kazuhisa Uchiyama
- Department of General and Gastroenterological Surgery, Osaka Medical College, Takatsuki, Osaka 569-8686, Japan
| | - Yoshinobu Hirose
- Department of Pathology, Osaka Medical College, Takatsuki, Osaka 569-8686, Japan
| |
Collapse
|
19
|
George S, Lucero Y, Torres JP, Lagomarcino AJ, O'Ryan M. Gastric Damage and Cancer-Associated Biomarkers in Helicobacter pylori-Infected Children. Front Microbiol 2020; 11:90. [PMID: 32117120 PMCID: PMC7029740 DOI: 10.3389/fmicb.2020.00090] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Accepted: 01/15/2020] [Indexed: 12/11/2022] Open
Abstract
Helicobacter pylori (H. pylori) is well-known to be involved in gastric carcinogenesis, associated with deregulation of cell proliferation and epigenetic changes in cancer-related genes. H. pylori infection is largely acquired during childhood, persisting long-term in about half of infected individuals, a subset of whom will go on to develop peptic ulcer disease and eventually gastric cancer, however, the sequence of events leading to disease is not completely understood. Knowledge on carcinogenesis and gastric damage-related biomarkers is abundant in adult populations, but scarce in children. We performed an extensive literature review focusing on gastric cancer related biomarkers identified in adult populations, which have been detected in children infected with H. pylori. Biomarkers were related to expression levels (RNA or protein) and/or methylation levels (DNA) in gastric tissue or blood of infected children as compared to non-infected controls. In this review, we identified 37 biomarkers of which 24 are over expressed, three are under expressed, and ten genes are significantly hypermethylated in H. pylori-infected children compared to healthy controls in at least 1 study. Only four of these biomarkers (pepsinogen I, pepsinogen II, gastrin, and SLC5A8) have been studied in asymptomatically infected children. Importantly, 13 of these biomarkers (β-catenin, C-MYC, GATA-4, DAPK1, CXCL13, DC-SIGN, TIMP3, EGFR, GRIN2B, PIM2, SLC5A8, CDH1, and VCAM-1.) are consistently deregulated in infected children and in adults with gastric cancer. Future studies should be designed to determine the clinical significance of these changes in infection-associated biomarkers in children and their persistence over time. The effect of eradication therapy over these biomarkers in children if proven significant, could lead to modifications in treatment guidelines for younger populations, and eventually promote the development of preventive strategies, such as vaccination, in the near future.
Collapse
Affiliation(s)
- Sergio George
- Host-Pathogen Interaction Laboratory, Microbiology and Mycology Program, ICBM, Faculty of Medicine, University of Chile, Santiago, Chile
| | - Yalda Lucero
- Host-Pathogen Interaction Laboratory, Microbiology and Mycology Program, ICBM, Faculty of Medicine, University of Chile, Santiago, Chile.,Department of Pediatrics and Pediatric Surgery, Dr. Roberto del Río Hospital, Faculty of Medicine, Universidad de Chile, Santiago, Chile
| | - Juan Pablo Torres
- Host-Pathogen Interaction Laboratory, Microbiology and Mycology Program, ICBM, Faculty of Medicine, University of Chile, Santiago, Chile.,Department of Pediatrics and Pediatric Surgery, Dr. Luis Calvo Mackenna Hospital, Faculty of Medicine, Universidad de Chile, Santiago, Chile
| | - Anne J Lagomarcino
- Host-Pathogen Interaction Laboratory, Microbiology and Mycology Program, ICBM, Faculty of Medicine, University of Chile, Santiago, Chile
| | - Miguel O'Ryan
- Host-Pathogen Interaction Laboratory, Microbiology and Mycology Program, ICBM, Faculty of Medicine, University of Chile, Santiago, Chile.,Millennium Institute on Immunology and Immunotherapy (IMII), Faculty of Medicine, Universidad de Chile, Santiago, Chile
| |
Collapse
|
20
|
Hu C, Xu Z, Chen S, Lv H, Wang Y, Wang X, Mo S, Shi C, Wei S, Hu L, Chen W, Cheng X. Overexpression of B7H5/CD28H is associated with worse survival in human gastric cancer. J Cell Mol Med 2019; 24:1360-1369. [PMID: 31883303 PMCID: PMC6991633 DOI: 10.1111/jcmm.14812] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Accepted: 10/20/2019] [Indexed: 12/20/2022] Open
Abstract
Gastric cancer (GC) is a common malignancy with low 5‐year overall survival (OS). Recently, immune therapy has been used to treat cancer. B7H5 and CD28H are novel immune checkpoint molecules. However, the prognostic value of B7H5/CD28H expression in patients with GC remains unclear. In this study, seventy‐one patients diagnosed with GC were included in this study. Patients' GC tissues and matched adjacent tissue constructed a tissue microarray. The expression levels of B7H5 and CD28H were examined using immunohistochemistry. Correlations between the expression of B7H5 and CD28H and the clinical data were evaluated. We found that the expression of B7H5 and CD28H (both P = .001) were higher in GC tumour tissues than in adjacent noncancerous tissues. B7H5/CD28H expression acted as an independent predictive factor in the OS of patients with GC. High expression of B7H5 and CD28H predicted poor outcome. Patients in the B7H5+CD28H+ group had a lower 5‐year OS compared with patients in the B7H5−CD28− group (4.5% vs 55.6%, P = .001). A significant difference was found in the 5‐year OS between patients in the B7H5+CD28H− and B7H5+CD28H+ groups (33.5% vs 4.5%, P = .006). However, there was no correlation between B7H5 and CD28H expression (P = .844). Therefore, B7H5 and CD28H expression are up‐regulated in GC and are independent prognostic factors for overall survival in patients with GC. Although there was no correlation between B7H5 and CD28H expression, high expression of B7H5 and CD28H predicts poor prognosis, especially when both are highly expressed.
Collapse
Affiliation(s)
- Can Hu
- First Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
| | - Zhiyuan Xu
- Department of Abdominal Surgery, Zhejiang Cancer Hospital, Hangzhou, Zhejiang, China
| | - Shangqi Chen
- First Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
| | - Hang Lv
- Key Laboratory of Integrated Traditional Chinese and Western Medicine for Diagnosis and Treatment of Digestive System Tumor, Hangzhou, Zhejiang, China
| | - Yiping Wang
- Key Laboratory of Integrated Traditional Chinese and Western Medicine for Diagnosis and Treatment of Digestive System Tumor, Hangzhou, Zhejiang, China
| | - Xiaofeng Wang
- First Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
| | - Shaowei Mo
- First Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
| | - Chengwei Shi
- First Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
| | - Shenyu Wei
- First Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
| | - Liqiang Hu
- Cancer Institute of Integrated Traditional Chinese and Western Medicine, Key Laboratory of Cancer Prevention and Therapy Combining Traditional Chinese and Western Medicine, Zhejiang Academy of Traditional Chinese Medicine, Hangzhou, Zhejiang, China
| | - Wei Chen
- Cancer Institute of Integrated Traditional Chinese and Western Medicine, Key Laboratory of Cancer Prevention and Therapy Combining Traditional Chinese and Western Medicine, Zhejiang Academy of Traditional Chinese Medicine, Hangzhou, Zhejiang, China
| | - Xiangdong Cheng
- Department of Abdominal Surgery, Zhejiang Cancer Hospital, Hangzhou, Zhejiang, China
| |
Collapse
|
21
|
Tober JM, Halske C, Behrens HM, Krüger S, Röcken C. Intratumoral heterogeneity and loss of ARID1A expression in gastric cancer correlates with increased PD-L1 expression in Western patients. Hum Pathol 2019; 94:98-109. [PMID: 31704366 DOI: 10.1016/j.humpath.2019.09.016] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/24/2019] [Accepted: 09/11/2019] [Indexed: 12/24/2022]
Abstract
Recent whole-genome sequencing showed frequent mutations of ARID1A in gastric cancer (GC). In this study of a large independent Central European cohort, we evaluated the expression of ARID1A in whole tissue sections (WTS) of GC testing the following hypotheses: ARID1A shows intratumoral heterogeneity, and ARID1A expression and/or heterogeneity correlates with clinicopathological patient characteristics. ARID1A expression was studied by immunohistochemistry in 450 primary GCs and 143 corresponding lymph node metastases. The expression pattern was correlated with clinicopathological characteristics and patient survival. ARID1A genotype and CpG methylation status were additionally analyzed in 7 GCs with a heterogeneous "black-and-white" expression pattern. ARID1A was expressed heterogeneously in 23 (5.1%) GCs, depicting a black-and-white pattern of negative and positive tumor areas. Complete loss of expression was found in 43 (9.6%) GCs. ARID1A status correlated significantly with tumor type according to Laurén, Epstein-Barr virus status, microsatellite instability, PD-L1 status, and nodal spread. There was no correlation with patient survival. In 4 cases with heterogeneous ARID1A expression, frame shift variants were detected. Summing up, heterogeneous or complete loss of ARID1A expression occurred in 14.7% of GCs and correlated with PD-L1 status, indicating potential for future combined anti-PD-L1/ARID1A therapy. In a subgroup of cases, ARID1A loss was heterogeneous, which suggests that ARID1A mutations might be a later event in gastric carcinogenesis.
Collapse
Affiliation(s)
- Julia Maria Tober
- Department of Pathology, Christian-Albrechts-University, D-24105 Kiel, Germany
| | - Christine Halske
- Department of Pathology, Christian-Albrechts-University, D-24105 Kiel, Germany
| | | | - Sandra Krüger
- Department of Pathology, Christian-Albrechts-University, D-24105 Kiel, Germany
| | - Christoph Röcken
- Department of Pathology, Christian-Albrechts-University, D-24105 Kiel, Germany.
| |
Collapse
|
22
|
Xiong DD, Zeng CM, Jiang L, Luo DZ, Chen G. Ki-67/MKI67 as a Predictive Biomarker for Clinical Outcome in Gastric Cancer Patients: an Updated Meta-analysis and Systematic Review involving 53 Studies and 7078 Patients. J Cancer 2019; 10:5339-5354. [PMID: 31632479 PMCID: PMC6775696 DOI: 10.7150/jca.30074] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2018] [Accepted: 06/12/2019] [Indexed: 12/18/2022] Open
Abstract
Gastric cancer (GC) threatens human health worldwide and we performed this meta-analysis to evaluate the clinical value of Ki-67/MKI67 in patients with GC. The combined hazard ratio (HR), odds ratio (OR) and 95% confidence interval (95% CI) were calculated to assess the relationships of Ki-67/MKI67 expression with prognoses and clinicopathological characteristics. Genes co-expressed with MKI67 were collected for Gene Ontology (GO), Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway and protein-protein interaction (PPI) network analyses. In total, 53 studies with 7078 patients were included in this study. The pooled HRs indicated that an elevated expression of Ki-67/MKI67 predicted an unfavorable overall survival (HR: 1.54, 95% CI: 1.33-1.78, P<0.0001) and disease-free survival (HR: 2.28, 95% CI: 1.43-3.64, P<0.0001) in GC patients. Additionally, in patients with advanced GC, a high Ki-67/MKI67 expression was also significantly connected with OS (HR: 1.37, 95% CI: 1.18-1.60, P<0.0001). The combined ORs showed that Ki-67/MKI67 expression was related to TNM stage (stage III/IV versus stage I/II: OR=1.93, 95% CI=1.34-2.78, P<0.0001), tumor differentiation (poor versus well/moderate: OR=1.94, 95% CI=1.32-2.85, P=0.001), lymph node metastasis (yes versus no: OR=1.67, 95% CI=1.23-2.25, P=0.001), distant metastasis (yes versus no: OR=1.67, 95% CI=1.24-2.26, P=0.001) and tumor invasion depth (T3/T4 versus Tis/T1/T2: OR=1.98, 95% CI=1.60-2.44, P<0.0001). The results of GO, KEGG pathway and PPI network analyses indicated that Ki-67/MKI67 may be involved in the development of GC via influencing P53 signaling pathway. Ki-67/MKI67 could be a potential indicator to predict the prognosis of patients with GC and identify high-risk cases. Detecting Ki-67/MKI67 expression in clinic may be helpful in optimizing individual treatment and further improving the survival expectancy of patients with GC.
Collapse
Affiliation(s)
- Dan-Dan Xiong
- Department of Pathology, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region 530021, China
| | - Chu-Mei Zeng
- Department of Pathology, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region 530021, China
| | - Ling Jiang
- Department of Pathology, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region 530021, China
| | - Dian-Zhong Luo
- Department of Pathology, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region 530021, China
| | - Gang Chen
- Department of Pathology, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region 530021, China
| |
Collapse
|
23
|
Zhang H, Wang J, Chen X, Kang L, Lin M. Overexpression of c‐Ski promotes cell proliferation, invasion and migration of gastric cancer associated fibroblasts. Kaohsiung J Med Sci 2019; 35:214-221. [DOI: 10.1002/kjm2.12042] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2018] [Accepted: 01/08/2019] [Indexed: 01/22/2023] Open
Affiliation(s)
- Hui Zhang
- Department of Surgical Oncology, Provincial Clinical CollegeFujian Medical University Fuzhou China
| | - Jin‐Si Wang
- Department of Surgical Oncology, Provincial Clinical CollegeFujian Medical University Fuzhou China
| | - Xiao‐Geng Chen
- Department of Surgical Oncology, Provincial Clinical CollegeFujian Medical University Fuzhou China
| | - Li Kang
- Department of Surgical Oncology, Provincial Clinical CollegeFujian Medical University Fuzhou China
| | - Meng‐Bo Lin
- Department of Surgical Oncology, Provincial Clinical CollegeFujian Medical University Fuzhou China
| |
Collapse
|
24
|
Seo SH, Kim KH, Oh SH, Choi Y, Ahn KJ, Lee JY, Lee SM, Park J, Kim WG. Ki-67 labeling index as a prognostic marker in advanced stomach cancer. Ann Surg Treat Res 2018; 96:27-33. [PMID: 30603631 PMCID: PMC6306504 DOI: 10.4174/astr.2019.96.1.27] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2018] [Revised: 06/16/2018] [Accepted: 07/20/2018] [Indexed: 02/07/2023] Open
Abstract
Purpose Proliferation marker Ki-67 is widely used in cancer prognosis prediction. We tried to investigate the role of Ki-67 as a prognostic factor in stomach cancer after surgery in this study. Methods We retrospectively evaluated 251 patients who underwent curative resection for gastric cancer from 2010 to 2015. In pathologic examination, Ki-67 labeling index was defined as the percentage of Ki-67 antigen positive cells. Prognostic significance of Ki-67 for gastric cancer was evaluated. Disease-free survival (DFS) was assessed as a primary end-point. Results The median follow-up period was 28.0 months. Thirty-one patients (12.4%) showed Ki-67 labeling index (LI) lower than 25%. Sixty-eight patients (26.6%) showed recurrence during follow-up period. Recurrence was associated with Ki-67 LI level (≤25%, P = 0.016), and lymph node metastasis status (P = 0.002). High Ki-67 LI level (>25%) was also related to p53 positivity (P < 0.001) and poorly cohesive type (P = 0.002). The 3-year DFS was 69.4%. Low Ki-67 LI level (≤25%) was related with low DFS (47.6% vs. 72.6%, P = 0.016). T stage (P < 0.001), N stage (P = 0.006), lymphovascular invasion (P = 0.010), and neuronal invasion (P = 0.001) also affected the DFS. In addition, T stage (P = 0.03) and Ki-67 LI (P = 0.035) were independent prognostic factors for DFS. In patients treated with adjuvant chemotherapy (n = 239, 93.4%), low Ki-67 (≤25%) was a poor prognostic factor for DFS (P = 0.013). Conclusion Low Ki-67 LI predicts high rate of progression and low DFS of stomach cancer. Ki-67 LI can be a predictive marker in resected stomach cancer treated with surgery and adjuvant chemotherapy.
Collapse
Affiliation(s)
- Sang Hyuk Seo
- Department of Surgery, Inje University Busan Paik Hospital, Busan, Korea
| | - Kwang Hee Kim
- Department of Surgery, Inje University Busan Paik Hospital, Busan, Korea
| | - Sang Hoon Oh
- Department of Surgery, Inje University Busan Paik Hospital, Busan, Korea
| | - Yunseon Choi
- Department of Radiation Oncology, Inje University Busan Paik Hospital, Busan, Korea
| | - Ki Jung Ahn
- Department of Radiation Oncology, Inje University Busan Paik Hospital, Busan, Korea
| | - Ji Young Lee
- Division of Oncology/Hematology, Department of Internal Medicine, Inje University Busan Paik Hospital, Busan, Korea
| | - Sang Min Lee
- Division of Oncology/Hematology, Department of Internal Medicine, Inje University Busan Paik Hospital, Busan, Korea
| | - Jisun Park
- Department of Nuclear Medicine, Inje University Busan Paik Hospital, Busan, Korea
| | - Woo Gyeong Kim
- Department of Pathology, Inje University Haeundae Paik Hospital, Busan, Korea
| |
Collapse
|
25
|
Dual Energy Spectral CT Imaging in the assessment of Gastric Cancer and cell proliferation: A Preliminary Study. Sci Rep 2018; 8:17619. [PMID: 30514959 PMCID: PMC6279754 DOI: 10.1038/s41598-018-35712-w] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2018] [Accepted: 11/09/2018] [Indexed: 12/13/2022] Open
Abstract
Gastric cancer is one of the main diseases leading to cancer-related death. The recently introduced dual-energy spectral CT (DEsCT), allows to obtain many quantitative measurements from iodine-based material decomposition (MD) images, which contribute to improve the accuracy of staging of GC comparing to multidetector spiral CT. And Ki-67 is a well-recognized nuclear antigen-specific biomarker reflecting cellular proliferation for estimating growth fractions of various tumor types. In the present study we analyzed the features of quantitative measurements (the curve slope (λHU), IC, normalized iodine concentrations (NIC)) obtained from DEsCT and levels of Ki-67 protein expression. We demonstrated that the values between advanced gastric cancer (AGC) and early gastric cancer (EGC) were significantly different both in venous phase (VP) and delayed phase (DP). The values of different level of Ki-67 expression grade were significantly different both in VP and DP. The rank correlation analysis between Ki-67 grade and IC, NIC and λHU values showed significantly positive correlation in VP and DP. These results suggested that quantitative parameters (IC, NIC and λHU) in dual-energy CT imaging can be used to differentiate EGC from AGC, and have significantly positive correlation with Ki-67 antigen expression levels in gastric cancer for indicating tumor cellular proliferation.
Collapse
|
26
|
Yang T, Cao N, Zhang H, Wei J, Song X, Yi D, Chao S, Zhang L, Kong L, Han S, Yang Y, Ding S. Helicobacter pylori infection-induced H3Ser10 phosphorylation in stepwise gastric carcinogenesis and its clinical implications. Helicobacter 2018; 23:e12486. [PMID: 29656498 PMCID: PMC6001454 DOI: 10.1111/hel.12486] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
BACKGROUND Our previous works have demonstrated that Helicobacter pylori (Hp) infection can alter histone H3 serine 10 phosphorylation status in gastric epithelial cells. However, whether Helicobacter pylori-induced histone H3 serine 10 phosphorylation participates in gastric carcinogenesis is unknown. We investigate the expression of histone H3 serine 10 phosphorylation in various stages of gastric disease and explore its clinical implication. MATERIALS AND METHODS Stomach biopsy samples from 129 patients were collected and stained with histone H3 serine 10 phosphorylation, Ki67, and Helicobacter pylori by immunohistochemistry staining, expressed as labeling index. They were categorized into nonatrophic gastritis, chronic atrophic gastritis, intestinal metaplasia, low-grade intraepithelial neoplasia, high-grade intraepithelial neoplasia, and intestinal-type gastric cancer groups. Helicobacter pylori infection was determined by either 13 C-urea breath test or immunohistochemistry staining. RESULTS In Helicobacter pylori-negative patients, labeling index of histone H3 serine 10 phosphorylation was gradually increased in nonatrophic gastritis, chronic atrophic gastritis, intestinal metaplasia groups, peaked at low-grade intraepithelial neoplasia, and declined in high-grade intraepithelial neoplasia and gastric cancer groups. In Helicobacter pylori-infected patients, labeling index of histone H3 serine 10 phosphorylation followed the similar pattern as above, with increased expression over the corresponding Helicobacter pylori-negative controls except in nonatrophic gastritis patient whose labeling index was decreased when compared with Helicobacter pylori-negative control. Labeling index of Ki67 in Helicobacter pylori-negative groups was higher in gastric cancer than chronic atrophic gastritis and low-grade intraepithelial neoplasia groups, and higher in intestinal metaplasia group compared with chronic atrophic gastritis group. In Helicobacter pylori-positive groups, Ki67 labeling index was increased stepwise from nonatrophic gastritis to gastric cancer except slightly decrease in chronic atrophic gastritis group. In addition, we noted that histone H3 serine 10 phosphorylation staining is accompanied with its location changes from gastric gland bottom expanded to whole gland as disease stage progress. CONCLUSIONS These results indicate that stepwise gastric carcinogenesis is associated with altered histone H3 serine 10 phosphorylation, Helicobacter pylori infection enhances histone H3 serine 10 phosphorylation expression in these processes; it is also accompanied with histone H3 serine 10 phosphorylation location change from gland bottom staining expand to whole gland expression. The results suggest that epigenetic dysregulation may play important roles in Helicobacter pylori-induced gastric cancer.
Collapse
Affiliation(s)
- Tao‐Tao Yang
- Department of Gastroenterology and HepatologyPeople's Hospital of Zhengzhou UniversityZhengzhouChina
| | - Na Cao
- Henan Police CollegeZhengzhouChina
| | - Hai‐Hui Zhang
- Department of Gastroenterology and HepatologyPeople's Hospital of Zhengzhou UniversityZhengzhouChina
| | - Jian‐Bo Wei
- Department of Gastroenterology and HepatologyXinxiang Medical UniversityXinxiangChina
| | - Xiao‐Xia Song
- Department of PathologyPeople's Hospital of Zhengzhou UniversityZhengzhouChina
| | - Dong‐Min Yi
- Department of Gastroenterology and HepatologyPeople's Hospital of Zhengzhou UniversityZhengzhouChina
| | - Shuai‐Heng Chao
- Department of Gastroenterology and HepatologyPeople's Hospital of Zhengzhou UniversityZhengzhouChina
| | - Li‐Da Zhang
- Department of Gastroenterology and HepatologyPeople's Hospital of Zhengzhou UniversityZhengzhouChina
| | - Ling‐Fei Kong
- Department of PathologyPeople's Hospital of Zhengzhou UniversityZhengzhouChina
| | - Shuang‐Yin Han
- Department of Gastroenterology and HepatologyPeople's Hospital of Zhengzhou UniversityZhengzhouChina
| | - Yu‐Xiu Yang
- Department of Gastroenterology and HepatologyPeople's Hospital of Zhengzhou UniversityZhengzhouChina
| | - Song‐Ze Ding
- Department of Gastroenterology and HepatologyPeople's Hospital of Zhengzhou UniversityZhengzhouChina
| |
Collapse
|
27
|
Luo G, Hu Y, Zhang Z, Wang P, Luo Z, Lin J, Cheng C, Yang Y. Clinicopathologic significance and prognostic value of Ki-67 expression in patients with gastric cancer: a meta-analysis. Oncotarget 2018; 8:50273-50283. [PMID: 28488584 PMCID: PMC5564848 DOI: 10.18632/oncotarget.17305] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2016] [Accepted: 02/06/2017] [Indexed: 01/05/2023] Open
Abstract
BACKGROUND The prognostic value and clinicopathologic significance of Ki-67 expression in gastric cancer patients was controversial. This meta-analysis was performed to clarify the prognostic value and clinicopathologic significance of Ki-67 expression in gastric cancer patients. MATERIALS AND METHODS Several electronic databases were searched for eligible studies. The pooled odds ratio (OR), hazard ratios (HR) and 95% confidence interval(CI) were calculated to explore the prognostic value and clinicopathologic significance of Ki-67 expression for disease free survival and overall survival. RESULTS Totally 5600 gastric cancer patients from 29 studies were included in this study. High Ki-67 expression was significantly related with Lauren's classification (OR = 1.70; P = 0.001; 95%CI: 1.40-2.06) and tumor size(OR = 1.54; P = 0.006; 95%CI: 1.14-2.09). However, high Ki-67 expression was not significantly associated with lymph node metastasis (OR = 1.37; P = 0.138; 95% CI: 0.90-2.08) , tumor stage (OR = 1.31; P = 0.296; 95% CI: 0.79-2.16) and tumor differentiation (OR = 1.03; P = 0.839; 95% CI: 0.78-1.35). The pooled HRs were 1.87(P = 0.001; 95% CI 1.30-2.69) for disease free survival and 1.23(P = 0.005; 95% CI 1.06-1.42) for overall survival. CONCLUSIONS High Ki-67 expression may serve as a predictive biomarker for poor prognosis in gastric cancer patients. Stratification by Ki-67 expression may be a consideration for selection of therapeutic regimen and integrated managements.
Collapse
Affiliation(s)
- Guanying Luo
- Department of Infectious Diseases, The First People's Hospital of Shunde, Shunde, Guangdong, China.,Department of Internal Medicine, The Chencun Affiliated Hospital of First People's Hospital of Shunde, Shunde, Guangdong, China
| | - Yunzhao Hu
- Department of Infectious Diseases, The First People's Hospital of Shunde, Shunde, Guangdong, China.,Department of Internal Medicine, The Chencun Affiliated Hospital of First People's Hospital of Shunde, Shunde, Guangdong, China
| | - Zhiqiao Zhang
- Department of Infectious Diseases, The First People's Hospital of Shunde, Shunde, Guangdong, China.,Department of Internal Medicine, The Chencun Affiliated Hospital of First People's Hospital of Shunde, Shunde, Guangdong, China
| | - Peng Wang
- Department of Infectious Diseases, The First People's Hospital of Shunde, Shunde, Guangdong, China
| | - Zhaowen Luo
- Department of Internal Medicine, The Chencun Affiliated Hospital of First People's Hospital of Shunde, Shunde, Guangdong, China
| | - Jinxin Lin
- Department of Internal Medicine, The Chencun Affiliated Hospital of First People's Hospital of Shunde, Shunde, Guangdong, China
| | - Canchang Cheng
- Department of Infectious Diseases, The First People's Hospital of Shunde, Shunde, Guangdong, China.,Department of Internal Medicine, The Chencun Affiliated Hospital of First People's Hospital of Shunde, Shunde, Guangdong, China
| | - You Yang
- Department of Infectious Diseases, The First People's Hospital of Shunde, Shunde, Guangdong, China.,Department of Internal Medicine, The Chencun Affiliated Hospital of First People's Hospital of Shunde, Shunde, Guangdong, China
| |
Collapse
|
28
|
Minami T, Yuasa N, Miyake H, Takeuchi E, Nagai H, Ito M, Kiriyama A, Miyata K. MIB-1 index is unlikely to predict relapse-free survival in patients who underwent R0-esophagectomy for esophageal squamous cell carcinoma. Dis Esophagus 2018; 31:4762060. [PMID: 29272372 DOI: 10.1093/dote/dox145] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
MIB-1 is a cell proliferation marker and has previously been investigated as a diagnostic or prognostic indicator of malignancy. Previous studies have investigated MIB-1 index and clinicopathological factors in relation to prognosis of patients with esophageal cancer, with conflicting results. The aim of this study is to assess the prognostic significance of MIB-1 index in patients with thoracic esophageal squamous cell carcinoma. A total of 78 patients who underwent R0-esophagectomy for thoracic esophageal squamous cell carcinoma were enrolled in this study. Preoperatively, 29 patients underwent chemotherapy, six underwent chemoradiotherapy, and the remaining did not undergo any preoperative therapy. The MIB-1 labeling index was reported by counting 500 tumor cells in the hot spots of nuclear labeling. Correlations between MIB-1 index, clinicopathological factors, and relapse-free survival (RFS) were investigated. The mean MIB-1 index was 39.3 ± 21.0 (range: 0-91.3). There was no significant correlation between clinicopathological factors and MIB-1 index in the study patients, irrespective of whether they underwent preoperative therapy. Univariate analysis revealed no significant association between MIB-1 index and RFS. However, depth of tumor invasion, lymph node metastasis and stage, all showed a significant correlation to RFS. Multivariate analysis of RFS revealed that stage was the only significant factor. Conversely, MIB-1 index was not significantly related to RFS (p = 0.41). In conclusion, MIB-1 index is unlikely to be a significant prognostic indicator for esophageal cancer.
Collapse
Affiliation(s)
- T Minami
- Departments of Surgery, and Pathology, Japanese Red Cross Nagoya First Hospital, Nagoya, Japan
| | - N Yuasa
- Departments of Surgery, and Pathology, Japanese Red Cross Nagoya First Hospital, Nagoya, Japan
| | - H Miyake
- Departments of Surgery, and Pathology, Japanese Red Cross Nagoya First Hospital, Nagoya, Japan
| | - E Takeuchi
- Departments of Surgery, and Pathology, Japanese Red Cross Nagoya First Hospital, Nagoya, Japan
| | - H Nagai
- Departments of Surgery, and Pathology, Japanese Red Cross Nagoya First Hospital, Nagoya, Japan
| | - M Ito
- Departments of Surgery, and Pathology, Japanese Red Cross Nagoya First Hospital, Nagoya, Japan
| | - A Kiriyama
- Departments of Surgery, and Pathology, Japanese Red Cross Nagoya First Hospital, Nagoya, Japan
| | - K Miyata
- Departments of Surgery, and Pathology, Japanese Red Cross Nagoya First Hospital, Nagoya, Japan
| |
Collapse
|
29
|
Meta-analysis of prognostic role of Ki-67 labeling index in gastric carcinoma. Int J Biol Markers 2017; 32:e447-e453. [PMID: 28561880 DOI: 10.5301/ijbm.5000277] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/27/2017] [Indexed: 02/07/2023]
Abstract
BACKGROUND This meta-analysis aimed to elucidate the prognostic role of the Ki-67 labeling index (LI) in gastric cancer (GC). METHODS The current study included 3,615 GC patients in 20 eligible studies, and evaluated the prognostic role of Ki-67 LI in GC. Subgroup analysis was conducted based on depth of invasion and cutoff value for high Ki-67 LI. RESULTS A high Ki-67 LI correlated significantly with worse survival (hazard ratio [HR] = 1.214, 95% confidence interval [CI], 1.004-1.468). However, there was no significant correlation between high Ki-67 LI and worse survival in advanced GC (HR = 1.252, 95% CI, 0.801-1.956). The subgroup with cutoff value ≤25% showed a significant correlation with worse survival, but this was not seen in the subgroup with cutoff >25% (HR = 1.433, 95% CI, 1.094-1.876 vs. HR = 1.005, 95% CI, 0.801-1.262). In addition, in the 10% <Ki-67 LI ≤ 20% range, there was a significant correlation between high Ki-67 LI and worse overall survival (HR = 1.931, 95% CI, 1.013-3.310). CONCLUSIONS A high Ki-67 LI correlated significantly with a worse prognosis in GC patients. Further cumulative studies for the optimal cutoff value for high Ki-67 LI are needed before application in clinical practice.
Collapse
|
30
|
Tracking the tumor invasion front using long-term fluidic tumoroid culture. Sci Rep 2017; 7:10784. [PMID: 28883652 PMCID: PMC5589910 DOI: 10.1038/s41598-017-10874-1] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2017] [Accepted: 06/22/2017] [Indexed: 01/08/2023] Open
Abstract
The analysis of invading leader cells at the tumor invasion front is of significant interest as these cells may possess a coordinated functional and molecular phenotype which can be targeted for therapy. However, such analyses are currently limited by available technologies. Here, we report a fluidic device for long-term three-dimensional tumoroid culture which recapitulated the tumor invasion front, allowing for both quantification of invasive potential and molecular characterization of invasive leader cells. Preliminary analysis of the invasion front indicated an association with cell proliferation and higher expression of growth differentiation factor 15 (GDF15). This device makes real-time tracking of invading leader cell phenotypes possible and has potential for use with patient material for clinical risk stratification and personalized medicine.
Collapse
|
31
|
Stahl D, Braun M, Gentles AJ, Lingohr P, Walter A, Kristiansen G, Gütgemann I. Low BUB1 expression is an adverse prognostic marker in gastric adenocarcinoma. Oncotarget 2017; 8:76329-76339. [PMID: 29100315 PMCID: PMC5652709 DOI: 10.18632/oncotarget.19357] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2017] [Accepted: 06/19/2017] [Indexed: 01/12/2023] Open
Abstract
Gastric adenocarcinomas are associated with a poor prognosis due to the fact that the tumor has often metastasized by the time of diagnosis and prognostic markers are urgently needed to tailor treatment. We examined the expression of the mitotic spindle checkpoint protein BUB1 (budding uninhibited by benzimidazoles 1) and Ki-67 protein expression by immunohistochemistry in 218 patients with primary gastric adenocarcinomas. Tumors with low frequency of BUB1 expression were associated with larger tumor size (pT) (p < 0.001), higher incidence of lymph node metastases (pN) (p = 0.027), distant metastases (pM) (p = 0.006) and higher UICC stage (p < 0.001). Furthermore, BUB1 expression was inversely correlated with residual tumor stage (p = 0.038). Abundant BUB1 protein expression correlated with frequent Ki-67 protein expression (p < 0.001) and low BUB1 expression was associated with shorter survival (p < 0.001). Univariate and multivariate analyses confirmed BUB1 to be an independent prognostic marker in gastric cancer (p = 0.021).
Collapse
Affiliation(s)
- David Stahl
- Institute of Pathology, University Hospital Bonn, Bonn, Germany
| | - Martin Braun
- Institute of Pathology, University Hospital Bonn, Bonn, Germany
| | - Andrew J Gentles
- Center for Cancer Systems Biology (CCSB), Stanford University, Stanford, California, USA
| | - Philipp Lingohr
- Department of General, Visceral, Thoracic and Vascular Surgery, University Hospital Bonn, Bonn, Germany
| | - Adeline Walter
- Department of Gynecology and Obstetrics, University Hospital Bonn, Bonn, Germany
| | | | - Ines Gütgemann
- Institute of Pathology, University Hospital Bonn, Bonn, Germany
| |
Collapse
|
32
|
Zhang Z, Wen M, Guo J, Shi J, Wang Z, Tan B, Zhang G, Zheng X, Zhang A. Clinical value of miR-425-5p detection and its association with cell proliferation and apoptosis of gastric cancer. Pathol Res Pract 2017. [PMID: 28647207 DOI: 10.1016/j.prp.2017.05.009] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Researches have shown that miR-425-5p expression altered in lung, esophageal, and glial cancer. Similarly, in our previous study, we found miR-425-5p expression was up-regulated in GC cells and could promote gastric cancer (GC) cell invasion and metastasis. However, the functional mechanism and the prognostic significance of miR-425-5p in GC remain unclear. Therefore, the present study examined miR-425-5p expression in GC tissues and also evaluated miR-425-5p of the therapeutic and prognostic value. Moreover, with interference of miR-425-5p expression in cell lines, we investigated the molecular mechanism of miR-425-5p and the expression level was higher in GC tissues comparing with that in gastric tumor-adjacent mucosa. These results suggested that miR-425-5p over-expression may be associated with depth of invasion and TNM stages and can be a prognostic marker of poor outcome. After inhibition of miR-425-5p expression in MKN45 cells, the cell activity was weakened. The number of G0/G1 cells increased while G2/M and S cells decreased, and the cell apoptotic rates elevated (P<0.05). Some proliferation and apoptosis related genes were altered (P<0.05). Consequently, miR-425-5p can be considered as a marker of poor prognosis and it is probably involved in GC cell proliferation and apoptosis by regulating some of the genes which participate these processes.
Collapse
Affiliation(s)
- Zhuoqi Zhang
- Department of Gastrointestinal Surgery, Affiliated Hospital of Hebei University, Baoding, 071000, China.
| | - Ming Wen
- Department of Gastrointestinal Surgery, Affiliated Hospital of Hebei University, Baoding, 071000, China
| | - Jian Guo
- Department of Gastrointestinal Surgery, Affiliated Hospital of Hebei University, Baoding, 071000, China
| | - Jianwei Shi
- Department of Gastrointestinal Surgery, Affiliated Hospital of Hebei University, Baoding, 071000, China
| | - Zhiyu Wang
- Oncology Department, Affiliated Hospital of Hebei University, Baoding, 071000, China
| | - Bibo Tan
- Department of General Surgery, The Fourth Affiliated Hospital of Hebei Medical University, Shijiazhuang, 050011, China
| | - Gang Zhang
- Department of Gastrointestinal Surgery, Affiliated Hospital of Hebei University, Baoding, 071000, China
| | - Xiangkui Zheng
- Department of Gastrointestinal Surgery, Affiliated Hospital of Hebei University, Baoding, 071000, China
| | - Aimin Zhang
- Department of Gastrointestinal Surgery, Affiliated Hospital of Hebei University, Baoding, 071000, China
| |
Collapse
|
33
|
Abstract
INTRODUCTION Gastric cancer is among the most common cancers worldwide. Despite declining incidences, the prognosis remains dismal in Western countries and is better in Asian countries with national cancer screening programs. Complete endoscopic or surgical resection of the primary tumor with or without lymphadenectomy offers the only chance of cure in the early stage of the disease. Survival of more locally advanced gastric cancers was improved by the introduction of perioperative, adjuvant and palliative chemotherapy. However, the identification and usage of novel predictive and diagnostic targets is urgently needed. Areas covered: Recent comprehensive molecular profiling of gastric cancer proposed four molecular subtypes, i.e. Epstein-Barr virus-associated, microsatellite instable, chromosomal instable and genomically stable carcinomas. The new molecular classification will spur clinical trials exploring novel targeted therapeutics. This review summarizes recent advancements of the molecular classification, and based on that, putative pitfalls for the development of tissue-based companion diagnostics, i.e. prevalence of actionable targets and therapeutic efficacy, tumor heterogeneity and tumor evolution, impact of ethnicity on gastric cancer biology, and standards of care in the East and West. Expert commentary: The overall low prevalence of actionable targets and tumor heterogeneity are the two main obstacles of precision medicine for gastric cancer.
Collapse
Affiliation(s)
- Christoph Röcken
- a Department of Pathology , Christian-Albrechts-University , Kiel , Germany
| |
Collapse
|
34
|
Abstract
Gastric cancer is the fifth (men) and sixth (women) most common cause of cancer-related death in Germany. Despite a declining incidence of distal gastric cancer, the prognosis remains dismal: the 5‑year survival rate ranges between 35% for women and 31% for men. The majority are adenocarcinomas, which occur sporadically, familial or hereditary. Adenomas and intraepithelial neoplasms are considered as precursor lesions. Recently, whole genome sequencing and comprehensive molecular profiling described four molecular subtypes of gastric cancer: Epstein-Barr virus (EBV) positive, microsatellite unstable, chromosomal unstable and genomically stable gastric cancer. Currently, only the TNM classification has stood the test of time for the assessment of patient prognosis. Neuroendocrine tumor types 1-3 and soft tissue tumors occur significantly less often in the stomach. Gastrointestinal stromal tumors and inflammatory fibroid polyps are among the more common soft tissue tumors of the stomach and show distinct phenotypes. This review gives an overview of the current World Health Organization (WHO) classification of gastric tumors.
Collapse
Affiliation(s)
- C Röcken
- Institut für Pathologie, Christian-Albrechts-Universität Kiel, Arnold-Heller-Straße 3/14, 24105, Kiel, Deutschland.
| |
Collapse
|
35
|
Wilhelm F, Böger C, Krüger S, Behrens HM, Röcken C. Troy is expressed in human stomach mucosa and a novel putative prognostic marker of intestinal type gastric cancer. Oncotarget 2016; 8:50557-50569. [PMID: 28881583 PMCID: PMC5584167 DOI: 10.18632/oncotarget.10672] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2015] [Accepted: 06/01/2016] [Indexed: 02/07/2023] Open
Abstract
Epithelial stem cells of gastrointestinal tissues are characterized and controlled by an active Wnt signaling. Recently, the Wnt target gene Troy has been proposed as a neoplastic marker in the murine intestine. In this study, we explored the putative tumor biological significance of Troy in humans by using immunohistochemistry (104 cases), quantitative RT-PCR (50 cases) and cell culture experiments (MKN45, MKN74). In the non-neoplastic gastric mucosa, Troy was expressed by Muc5AC-positive foveolar epithelium, parietal cells, chief cells and cells of the intestinal metaplasia. In gastric cancer, Troy was found in the desmoplastic stroma and tumor cells. The overall staining intensity of the tumor cells was lower compared with the adjacent non-neoplastic mucosa, Troy was found significantly more commonly in intestinal compared with diffuse type gastric cancer (p=0.001) and correlated inversely with tumor grade (p<0.001) and nodal spread (p=0.025). In the intestinal type, loss of Troy-expression was associated with a significantly worse overall survival (p=0.006). Subsequent cell culture experiments showed a Wnt dependent expression of Troy and a reduced colony formation ability of Troy-overexpressing MKN45-cells. Our results lead to the conjecture that Troy is also a negative regulator of WNT signaling in gastric cancer, which affects patient outcome.
Collapse
Affiliation(s)
- Franziska Wilhelm
- Department of Pathology, Christian-Albrechts-University, Kiel, Germany
| | - Christine Böger
- Department of Pathology, Christian-Albrechts-University, Kiel, Germany
| | - Sandra Krüger
- Department of Pathology, Christian-Albrechts-University, Kiel, Germany
| | | | - Christoph Röcken
- Department of Pathology, Christian-Albrechts-University, Kiel, Germany
| |
Collapse
|
36
|
Song B, Zhan H, Bian Q, Gu J. Piperlongumine inhibits gastric cancer cells via suppression of the JAK1,2/STAT3 signaling pathway. Mol Med Rep 2016; 13:4475-80. [PMID: 27053336 DOI: 10.3892/mmr.2016.5091] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2015] [Accepted: 03/21/2016] [Indexed: 11/06/2022] Open
Abstract
Piperlongumine (PL), a major active component of long peppers, has been reported to possess anti‑cancer properties; however, its effect on gastric cancer (GC) has remained to be demonstrated. The present study assessed the effects of PL on the MKN45 and AGS GC cell lines and explored the underlying mechanisms. An MTT assay revealed that PL suppressed the proliferation of GC cells, while flow cytometric analysis showed that PL inhibited cell cycle progression. Furthermore, Transwell assays revealed the inhibitory effects of PL on the invasion and migration of GC cells. In addition, PL reduced the phosphorylation of Janus kinase (JAK)1, JAK2 and signal transducer and activator of transcription (STAT)3 in a concentration‑dependent manner, as indicated by western blot analysis, and decreased the expression of STAT3‑dependent tumor‑associated genes in GC cells, as revealed by PCR analysis. In conclusion, the present study was the first, to the best of our knowledge, to reveal the efficacy of PL against GC. The consumption of long peppers is therefore recommended for the prevention and treatment of GC, and PL may be a promising candidate drug for treating GC.
Collapse
Affiliation(s)
- Baoji Song
- Department of General Surgery, Tianjin Hospital, Tianjin 300211, P.R. China
| | - Hongjie Zhan
- Department of Gastric Cancer, Tianjin Cancer Hospital, Key Laboratory of Cancer Prevention and Treatment of Tianjin, Tianjin Medical University, Tianjin 300060, P.R. China
| | - Quan Bian
- Department of General Surgery, Tianjin Hospital, Tianjin 300211, P.R. China
| | - Junping Gu
- Department of General Surgery, Tianjin Hospital, Tianjin 300211, P.R. China
| |
Collapse
|