1
|
Nehal M, Khatoon J, Akhtar S, Khan MKA. Exploring the potential of EphA2 receptor signaling pathway: a comprehensive review in cancer treatment. Mol Biol Rep 2024; 51:337. [PMID: 38393520 DOI: 10.1007/s11033-024-09298-8] [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: 10/28/2023] [Accepted: 01/29/2024] [Indexed: 02/25/2024]
Abstract
The protein encoded by the ephrin type-A receptor 2 (EphA2) gene is a member of the ephrin receptor subfamily of the receptor tyrosine kinase family (RTKs). Eph receptors play a significant role in various biological processes, particularly cancer progression, development, and pathogenesis. They have been observed to regulate cancer cell growth, migration, invasion, tumor development, invasiveness, angiogenesis, and metastasis. To target EphA2 activity, various molecular, genetic, biochemical, and pharmacological strategies have been extensively tested in laboratory cultures and animal models. Notably, drugs, such as dasatinib, initially designed to target the kinase family, have demonstrated an additional capability to target EphA2 activity. Additionally, a novel monoclonal antibody named EA5 has emerged as a promising option to counteract the effects of EphA2 overexpression and restore tamoxifen sensitivity in EphA2-transfected MCF-7 cells during in vitro experiments. This antibody mimicked the binding of Ephrin A to EphA2. These methods offer potential avenues for inhibiting EphA2 activity, which could significantly decelerate breast cancer progression and restore sensitivity to certain drugs. This review article comprehensively covers EphA2's involvement in multiple malignancies, including ovarian, colorectal, breast, lung, glioma, and melanoma. Furthermore, we discuss the structure of EphA2, the Eph-Ephrin signaling pathway, various EphA2 inhibitors, and the mechanisms of EphA2 degradation. This article provides an extensive overview of EphA2's vital role in different types of cancers and outlines potential therapeutic approaches to target EphA2, shedding light on the underlying molecular mechanisms that make it an attractive target for cancer treatment.
Collapse
Affiliation(s)
- Mohd Nehal
- Department of Biosciences, Integral University, Lucknow, Uttar Pradesh, 226026, India
| | - Jahanarah Khatoon
- Department of Biosciences, Integral University, Lucknow, Uttar Pradesh, 226026, India
| | - Salman Akhtar
- Department of Bioengineering, Integral University, Lucknow, Uttar Pradesh, 226026, India
| | | |
Collapse
|
2
|
Kasprzak A. Prognostic Biomarkers of Cell Proliferation in Colorectal Cancer (CRC): From Immunohistochemistry to Molecular Biology Techniques. Cancers (Basel) 2023; 15:4570. [PMID: 37760539 PMCID: PMC10526446 DOI: 10.3390/cancers15184570] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Revised: 09/04/2023] [Accepted: 09/13/2023] [Indexed: 09/29/2023] Open
Abstract
Colorectal cancer (CRC) is one of the most common and severe malignancies worldwide. Recent advances in diagnostic methods allow for more accurate identification and detection of several molecular biomarkers associated with this cancer. Nonetheless, non-invasive and effective prognostic and predictive testing in CRC patients remains challenging. Classical prognostic genetic markers comprise mutations in several genes (e.g., APC, KRAS/BRAF, TGF-β, and TP53). Furthermore, CIN and MSI serve as chromosomal markers, while epigenetic markers include CIMP and many other candidates such as SERP, p14, p16, LINE-1, and RASSF1A. The number of proliferation-related long non-coding RNAs (e.g., SNHG1, SNHG6, MALAT-1, CRNDE) and microRNAs (e.g., miR-20a, miR-21, miR-143, miR-145, miR-181a/b) that could serve as potential CRC markers has also steadily increased in recent years. Among the immunohistochemical (IHC) proliferative markers, the prognostic value regarding the patients' overall survival (OS) or disease-free survival (DFS) has been confirmed for thymidylate synthase (TS), cyclin B1, cyclin D1, proliferating cell nuclear antigen (PCNA), and Ki-67. In most cases, the overexpression of these markers in tissues was related to worse OS and DFS. However, slowly proliferating cells should also be considered in CRC therapy (especially radiotherapy) as they could represent a reservoir from which cells are recruited to replenish the rapidly proliferating population in response to cell-damaging factors. Considering the above, the aim of this article is to review the most common proliferative markers assessed using various methods including IHC and selected molecular biology techniques (e.g., qRT-PCR, in situ hybridization, RNA/DNA sequencing, next-generation sequencing) as prognostic and predictive markers in CRC.
Collapse
Affiliation(s)
- Aldona Kasprzak
- Department of Histology and Embryology, University of Medical Sciences, Swiecicki Street 6, 60-781 Poznan, Poland
| |
Collapse
|
3
|
Romina O, Federico B, Leonardo S, Jennifer M, Carla R, Marina P, Alejandra D, Guillermo J, Lisa T. 6 Iodo-delta lactone inhibits angiogenesis in human HT29 colon adenocarcinoma xenograft. Prostaglandins Leukot Essent Fatty Acids 2022; 186:102507. [PMID: 36244213 DOI: 10.1016/j.plefa.2022.102507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Revised: 08/24/2022] [Accepted: 10/06/2022] [Indexed: 12/29/2022]
Abstract
INTRODUCTION Several studies have shown the antiproliferative effect of iodine and 5‑hydroxy-6 iodo-eicosatrienoic delta lactone (IL-δ) on diverse tissues. It was demonstrated that molecular iodine (I2) and IL-δ, but not iodide (I-), exerts anti-neoplastic actions in different cancers. The underlying mechanism through which IL-δ inhibits tumor growth remains unclear. The aim of this study was to analyze the effect of IL-δ on tumor growth and angiogenesis in human HT29 colorectal cancer xenografts. METHODOLOGY AND RESULTS HT29 cells were injected subcutaneously into the flanks of nude mice and IL-δ was i.p. injected at a dose of 15 μg three days a week. IL-δ treatment in HT29 xenografts showed time-dependent inhibition of tumor growth, decrease of mitosis and PCNA expression (p < 0.05), increase of P27 expression and Caspase 3 activity after 18 days of treatment (p < 0.05). To assess tumor Microvessel Densities (MVD), CD31 staining by immunohistochemistry was analyzed. IL-δ treatment decreased MVD by 17% and 30% after 18 and 30 days respectively (p < 0.05), as well as it decreased VEGF and VEGF-R2 expression (p < 0.05). Additionally, our findings demonstrated that IL-δ increased VEGF-R1 and Ang-1 mRNA levels (p < 0.01). CONCLUSION The antitumor efficacy of IL-δ in vivo involves inhibition of cell proliferation as well as induction of apoptosis. IL-δ has also anti-angiogenic effect associated with VEGF and VEGF-R2 downregulation followed by Ang-1 and VEGF-R1 increased expression. High levels of Ang-1 would contribute to mature vessel stabilization and maintenance while VEGF-R1 increase would produce anti-proliferative effect on endothelial cells.
Collapse
Affiliation(s)
- Oglio Romina
- Department of Radiobiology (CAC), National Comission of Atomic Energy (CNEA), Argentine
| | - Buschittari Federico
- Department of Radiobiology (CAC), National Comission of Atomic Energy (CNEA), Argentine
| | - Salvarredi Leonardo
- Department of Radiobiology (CAC), National Comission of Atomic Energy (CNEA), Argentine
| | | | - Rodriguez Carla
- Department of Radiobiology (CAC), National Comission of Atomic Energy (CNEA), Argentine
| | - Perona Marina
- Department of Radiobiology (CAC), National Comission of Atomic Energy (CNEA), Argentine; National Council of Scientific and Technical Research (CONICET), Argentine
| | - Dagrosa Alejandra
- Department of Radiobiology (CAC), National Comission of Atomic Energy (CNEA), Argentine; National Council of Scientific and Technical Research (CONICET), Argentine
| | - Juvenal Guillermo
- Department of Radiobiology (CAC), National Comission of Atomic Energy (CNEA), Argentine; National Council of Scientific and Technical Research (CONICET), Argentine
| | - Thomasz Lisa
- Department of Radiobiology (CAC), National Comission of Atomic Energy (CNEA), Argentine; National Council of Scientific and Technical Research (CONICET), Argentine.
| |
Collapse
|
4
|
Antitumorigenic Effects of Inhibiting Ephrin Receptor Kinase Signaling by GLPG1790 against Colorectal Cancer Cell Lines In Vitro and In Vivo. JOURNAL OF ONCOLOGY 2020; 2020:9342732. [PMID: 32184826 PMCID: PMC7063197 DOI: 10.1155/2020/9342732] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Revised: 01/17/2020] [Accepted: 01/29/2020] [Indexed: 12/15/2022]
Abstract
Erythropoietin-producing hepatocellular receptors (Eph) promote the onset and sustain the progression of cancers such as colorectal cancer (CRC), in which the A2 subtype of Eph receptor expression has been shown to correlate with a poor prognosis and has been identified as a promising therapeutic target. Herein, we investigated, in vitro and in vivo, the effects of treatment with GLPG1790, a potent pan-Eph inhibitor. The small molecule has selective activity against the EphA2 isoform in human HCT116 and HCT15 CRC cell lines expressing a constitutively active form of RAS concurrently with a wild-type or mutant form of p53, respectively. GLPG1790 reduced EPHA2 phosphorylation/activation and induced G1/S cell-cycle growth arrest by downregulating the expression of cyclin E and PCNA, while upregulating p21Waf1/Cip1 and p27Cip/Kip. The inhibition of ephrin signaling induced quiescence in HCT15 and senescence in HCT116 cells. While investigating the role of CRC-related, pro-oncogenic p53 and RAS pathways, we found that GLPG1790 upregulated p53 expression and that silencing p53 or inhibiting RAS (human rat sarcoma)/ERKs (extracellular signal-regulated kinase) signaling restrained the ability of GLPG1790 to induce senescence in HCT116 cells. On the other hand, HCT15 silencing of p53 predisposed cells to GLPG1790-induced senescence, whilst no effects of ERK inhibition were observed. Finally, GLPG1790 hindered the epithelial-mesenchymal transition, reduced the migratory capacities of CRC, and affected tumor formation in xenograft models in vivo more efficiently using HCT116 than HCT15 for xenografts. Taken together, our data suggest the therapeutic potential of GLPG1790 as a signal transduction-based therapeutic strategy in to treat CRC.
Collapse
|
5
|
Zhou H, Huang T, Xiong Y, Peng L, Wang R, Zhang GJ. The prognostic value of proliferating cell nuclear antigen expression in colorectal cancer: A meta-analysis. Medicine (Baltimore) 2018; 97:e13752. [PMID: 30558098 PMCID: PMC6319909 DOI: 10.1097/md.0000000000013752] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND A number of studies have attempted to determine the prognostic significance of proliferating cell nuclear antigen (PCNA) in patients with colorectal cancer (CRC), but the reports are controversial and inconsistent. Thus, we conducted a meta-analysis to clarify the value of PCNA in CRC prognosis. METHODS A systematic search of relevant studies was performed in 4 electronic databases including PubMed, Cochrane Library, Embase, and Web of Science until February 2018. Hazard ratios (HRs) combined with 95% confidence intervals (95% CIs) were used to evaluate the relationship of PCNA expression with overall survival (OS), cancer-specific survival (CSS), and disease-free survival (DFS). RESULTS A total of 1372 CRC patients in 14 studies were identified eventually in our meta-analysis. The pooled HRs demonstrated that CRC patients with high PCNA expression was significantly correlated with poor OS (HR = 1.81; 95% CI: 1.51-2.17; P = .000), CSS (HR = 1.99; 95% CI: 1.04-3.79; P = .037); but not significantly with DFS (HR = 2.48; 95% CI: 0.98-6.26; P = .055). Sensitivity analysis showed the pooled HRs for OS, CSS, and DFS were stable when the included studies were removed one by one. CONCLUSION Our meta-analysis suggested that high PCNA expression was associated with poor prognosis, and it could serve as a reliable and prognostic biomarker in CRC patients. More large-scale studies are needed to further support the conclusion.
Collapse
Affiliation(s)
- He Zhou
- The Second Department of Gastrointestinal Surgery
| | - Tao Huang
- Department of Gastroenterology, The Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan Province
| | - Yongfu Xiong
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing
| | - Linglong Peng
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing
| | - Rong Wang
- Department of Gastrointestinal Surgery, The Affiliated Hospital of Zunyi Medical College, Zunyi, Guizhou Province
| | - Guang jun Zhang
- The Second Department of Gastrointestinal Surgery
- Institute of Hepatobiliary, Pancreatic and Intestinal Disease, North Sichuan Medical College, Nanchong, Sichuan, China
| |
Collapse
|
6
|
Yang YF, Zhang XY, Yang M, He ZH, Peng NF, Xie SR, Xie YF. Prognostic Role of Nucleophosmin in Colorectal Carcinomas. Asian Pac J Cancer Prev 2014; 15:2021-6. [DOI: 10.7314/apjcp.2014.15.5.2021] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
|
7
|
Oh TY, Moon SM, Shin US, Lee HR, Park SH. Impact on Prognosis of Lymph Node Micrometastasis and Isolated Tumor Cells in Stage II Colorectal Cancer. JOURNAL OF THE KOREAN SOCIETY OF COLOPROCTOLOGY 2011; 27:71-7. [PMID: 21602965 PMCID: PMC3092078 DOI: 10.3393/jksc.2011.27.2.71] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/24/2010] [Accepted: 03/27/2011] [Indexed: 12/17/2022]
Abstract
Purpose Even though the importance of micrometastases (MMS) and isolated tumor cells (ITC) has been brought up by many physicians, its impact on the prognosis in stage II colorectal cancer is uncertain. In this research, we tried to investigate the clinical features of MMS and ITC and to prove any correlation with prognosis. Methods The research pool was 124 colorectal cancer patients who underwent a curative resection from April 2005 to November 2009. A total of 2,379 lymph nodes (LNs) were examined, and all retrieved LNs were evaluated by immunohistochemical staining with anti-cytokeratin antibody panel. Clinicopathologic parameters and survival rates were compared based on the presence of MMS or ITC and on the micrometastatic lymph node ratio (mmLNR), which is defined as the number of micrometastatic LNs divided by the number of retrieved LNs. Results Out of 124 patients (26.6%) 33 were found to have MMS or ITC. There were no significant differences in clinicopathologic features, such as gender, tumor location and size, depth of invasion, histologic grade, except for age (P = 0.04). The three-year disease-free survival rate for the MMS or ITC positive group was 85.7%, and that for MMS and ITC negative group was 92.8% (P = 0.209). The three-year disease-free survival rate for the mmLNR > 0.25 group was 73.3%, and that for the mmLNR ≤ 0.25 group was 92.9% (P = 0.03). Conclusion The presence of MMS or ITC was not closely correlated to the prognosis. However, mmLNR is thought to be a valuable marker of prognosis in cases of stage II colorectal cancer.
Collapse
Affiliation(s)
- Tai Young Oh
- Department of Surgery, Korea Cancer Center Hospital, Seoul, Korea
| | | | | | | | | |
Collapse
|
8
|
Huh JW, Kim HR, Kim YJ. Proliferating cell nuclear antigen as a prognostic factor after total mesorectal excision of stage II-III rectal cancer. Ann Surg Oncol 2009; 16:1494-500. [PMID: 19267156 DOI: 10.1245/s10434-009-0424-6] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2008] [Revised: 02/11/2009] [Accepted: 02/15/2009] [Indexed: 01/05/2023]
Abstract
BACKGROUND Proliferating cell nuclear antigen (PCNA) is an auxiliary protein of DNA polymerase delta that is tightly associated with sites of DNA replication; whether PCNA is a definite prognostic factor remains controversial. This study determined the clinicopathological factors associated with the long-term oncological outcome after radical resection of stage II-III rectal cancer, focusing on PCNA. METHODS We retrospectively reviewed 135 consecutive patients who underwent curative surgery for stage II-III rectal cancer between August 2001 and April 2004. Prognostic factors including immunohistochemical PCNA expression and the clinical outcome were evaluated. RESULTS The PCNA index correlated with lymph node metastasis (P = 0.010). A multivariate analysis identified two independent factors that significantly affected both disease-free and overall survival: lymph node metastasis and PCNA index. With a median follow-up period of 60 months (range 8-87 months), both 5-year disease-free and overall survival of the low PCNA group were significantly higher than those of the high PCNA group (71.8% versus 32.0%, P < 0.001; 83.9% versus 50.0%, P < 0.001, respectively). CONCLUSION For patients undergoing curative resection for rectal cancer, pathological N stage and high PCNA expression can provide valuable prognostic information about survival. This study suggests that the PCNA index may be used as an independent prognostic factor in stage II-III rectal cancer patients.
Collapse
Affiliation(s)
- Jung Wook Huh
- Department of Surgery, Chonnam National University Hwasun Hospital and Medical School, Gwangju, Jeonnam, Korea
| | | | | |
Collapse
|
9
|
Rubio CA. Further studies on the arrest of cell proliferation in tumor cells at the invading front of colonic adenocarcinoma. J Gastroenterol Hepatol 2007; 22:1877-81. [PMID: 17914963 DOI: 10.1111/j.1440-1746.2007.04839.x] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/09/2022]
Abstract
BACKGROUND AND AIM The author has previously reported that neoplastic glands at the leading invading edge of colorectal carcinomas often display flat tumor cells and cellular gaps called glandular pores. The aim of this study was to audit cell proliferation and p53 mutation in flat tumor cells and in tumor cells at the tip of glandular pores at the leading invading front of colonic carcinomas. METHODS Sections from 40 colonic adenocarcinomas were immunostained with the proliferation marker Ki67 and with p53 protein. Expression was assessed at the leading invading front in consecutive neoplastic glands having flat tumor cells and epithelial pores and in neoplastic glands showing neither flat tumor cells nor glandular pores. RESULTS Flat tumor cells in neoplastic glands usually showed no Ki67 expression but overexpressed p53 mutation. In neoplastic glands with pores 40% of the tumor cells at the tip of the pores showed no Ki67, but they overexpressed p53 mutation. CONCLUSIONS The results showed, for the first time, that p53-positive flat neoplastic colonic cells arrest their proliferation at the invading front. It is possible that these p53-positive/Ki67-negative neoplastic cells were temporarily removed from the cell cycle (G0). This paradoxical biological behavior of tumor cells might be connected with the formation of glandular pores and appears to indicate that arrest of cell proliferation at the advancing tumor front in colonic carcinomas occurs independently of p53 mutation. The possible existence of two independent molecular systems at the advancing tumor edge of colonic carcinomas, one supervising cell proliferation and the other zealously transferring the p53 mutation to daughter cells, is suggested.
Collapse
Affiliation(s)
- Carlos A Rubio
- Gastrointestinal and Liver Pathology Research Laboratory, Department of Pathology, Karolinska Institute and University Hospital, Stockholm, Sweden.
| |
Collapse
|
10
|
Wray CJ, Lowy AM, Matthews JB, James LE, Mammen JM, Choe KA, Hanto DW, Ahmad SA. Intraoperative margin re-resection for colorectal liver metastases. JOURNAL OF SURGICAL EDUCATION 2007; 64:150-7. [PMID: 17574176 DOI: 10.1016/j.jsurg.2007.03.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2006] [Revised: 02/14/2007] [Accepted: 03/01/2007] [Indexed: 05/15/2023]
Abstract
OBJECTIVE Evaluate recurrence and survival in patients who underwent intraoperative margin re-resection for colorectal cancer liver (CRC) metastases. DESIGN Retrospective analysis. SETTING University Hospital, Cincinnati, Ohio. Academic medical center. PARTICIPANTS Cohort of 118 patients who underwent resection of CRC liver metastases between 1992 and 2004. All patients were divided into 3 groups: resection margin (MOR) less than 1 cm (n = 64), MOR greater than 1 cm (n = 33), and re-resection margin (re-MOR) greater than 1 cm (n = 21). RESULTS Patients with a margin greater than 1 cm, when compared with re-MOR greater than 1 had decreased incidence of liver and distant recurrence (p < 0.05) as well as improved disease-free survival (39.2 vs 22.9 months, p = 0.023). Differences in overall survival (58.6 vs 44.2 months, p = 0.14) were not significant. CONCLUSION Intraoperative re-resection is associated with an increased risk of local and distant recurrence, which may be a reflection of both inadequate surgery and underlying tumor biology.
Collapse
Affiliation(s)
- Curtis J Wray
- Department of Surgery and Radiology, Medical Center, University of Cincinnati College of Medicine, 234 Goodman Street NL 0772, Cincinnati, OH 45219, USA
| | | | | | | | | | | | | | | |
Collapse
|
11
|
Krtolica K, Krajnovic M, Usaj-Knezevic S, Babic D, Jovanovic D, Dimitrijevic B. Comethylation of p16 and MGMT genes in colorectal carcinoma: Correlation with clinicopathological features and prognostic value. World J Gastroenterol 2007; 13:1187-94. [PMID: 17451198 PMCID: PMC4146992 DOI: 10.3748/wjg.v13.i8.1187] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To investigate the significance of p16 and O6-methylguanine-DNA methyltransferase (MGMT) genes promoter hypermethylation and K-ras mutations on colorectal tumorigenesis and progression.
METHODS: p16 and MGMT methylation status was examined on 47 tumor samples, and K-ras mutational status was examined on 85 tumor samples. For methylation analysis, a methylation specific PCR (MS-PCR) method was used.
RESULTS: p16 and MGMT promoter methylation was found in 51% (24/47) and 43% (20/47) of CRCs, respectively, and the K-ras mutation was found in 44% (37/85) of CRCs. Comethylation of p16 and MGMT genes was significantly associated with lower aggressiveness of the disease within a two-year period of observation. Only 27% of patients with simultaneous p16 and MGMT methylation showed the detectible occurrence of metastasis and/or death, compared to 67% of patients without double methylation or with no methylation (3/11 vs 22/33, P < 0.05, χ2-test). In addition, p16 and MGMT comethylation showed a trend toward an association with longer survival in patients with CRCs (35.5 ± 6.0 mo vs 23.1 ± 3.2 mo, P = 0.072, Log-rank test). Progression of the disease within a two-year period was observed in 66% of patients carrying the K-ras mutation, compared to only 19% of patients with wild type K-ras (29/44 vs 7/37, P < 0.001, χ2-test). The presence of the K-ras mutation significantly correlated to shortened overall survival (20.0 ± 1.9 mo vs 37.0 ± 1.8 mo, P < 0.001, Log-rank test). The comethylation of p16 and MGMT genes was significantly associated with lower aggressiveness of the disease even when K-ras mutations were included in the analysis as an independent variable.
CONCLUSION: Our data suggest that comethylation of promoters of p16 and MGMT genes could have a prognostic value in patients with CRC. Specifically, concurrent methylation of both genes correlates with better prognosis.
Collapse
Affiliation(s)
- Koviljka Krtolica
- Laboratory for Radiobiology and Molecular Genetics, Institute of Nuclear Sciences Vinca, P. O. BOX 522, Belgrade, Serbia.
| | | | | | | | | | | |
Collapse
|
12
|
Saylam G, Yücel OT, Sungur A, Onerci M. Proliferation, angiogenesis and hormonal markers in juvenile nasopharyngeal angiofibroma. Int J Pediatr Otorhinolaryngol 2006; 70:227-34. [PMID: 16023739 DOI: 10.1016/j.ijporl.2005.06.007] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2005] [Accepted: 06/06/2005] [Indexed: 10/25/2022]
Abstract
OBJECTIVES Juvenile nasopharyngeal angiofibroma (JNA) is a highly vascular and locally invasive tumor that exclusively affects male adolescents. Sex hormones are first discussed to clarify the etiology of JNA. Recently with the advances in the field of cell biology angiogenetic markers, proliferation markers and growth factors are investigated to identify the molecular basis of JNA as all neoplasm. In this study we tried to evaluate the expression of proliferation, angiogenesis and hormonal markers in JNA. METHODS Immunohistochemical analysis were performed on paraffin-embedded 27 JNA samples which were obtained from the patients operated at University of Hacettepe Department of Otorhinolaryngology, a tertiary care center. Estrogen receptor (ER), progesterone receptor (PR), proliferating cell nuclear antigen (PCNA), vascular endothelial growth factor (VEGF) and transforming growth factor beta (TGF-beta) specific antibodies were used and evaluated by light microscopy RESULTS Two of 27 cases were ER positive. Nine of 27 cases were positive for PR. All of the cases were stained with PCNA. Twenty-four of 27 cases stained with VEGF. TGF-beta was positive in 14 of 27 cases. All recurrent cases were stained with PCNA and VEGF; just three of them were stained with TGF-beta. CONCLUSIONS Hormonal markers ER and PR did not seem to play a role in pathogenesis of JNA. PCNA, VEGF and TGF-beta may play a role in the pathogenesis of JNA by promoting angiogenesis and proliferation, but this role did not seem to have a relation with hormonal markers.
Collapse
Affiliation(s)
- Güleser Saylam
- Department of Otorhinolaryngology, University of Hacettepe, Ankara, Turkey.
| | | | | | | |
Collapse
|
13
|
Díez M, Pollán M, Ramos P, Villeta R, Ratia T, Hernández P, Lozano O, Noguerales F, Granell J. [Variation in the prognostic value of p53 protein in relation to tumoral stage in patients with colorectal adenocarcinoma]. Cir Esp 2006; 77:213-20. [PMID: 16420920 DOI: 10.1016/s0009-739x(05)70840-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE To analyze the prognostic value of p53 protein as a marker of recurrence risk in each tumoral stage. PATIENTS AND METHOD A prospective study of a cohort of 288 patients who underwent surgery for colorectal adenocarcinoma was performed. Stage 1 of the tumor-node-metastasis (TNM) classification was found in 42 patients (14.6%), stage II in 144 (50%) and stage III in 102 (35.4%). Histopathological variables were examined in tumor samples fixed in formol and embedded in paraffin and p53 (DO7 antibody) and proliferative cell nuclear antigen (PC-10 antibody) proteins were determined using immunohistochemistry. The results of p53 were analyzed in each of the categories of clinical and histopathological variables. Recurrence-free survival was calculated using the Kaplan-Meier method. The value of each variable as a predictive marker for tumoral recurrence was analyzed using Cox regression analysis. Hazard ratios and 95% confidence intervals were calculated as indicators of relative risk. The analysis was applied to the whole cohort and was subsequently repeated in each TNM tumoral stage separately. RESULTS Tumors with p53 protein overexpression more frequently recurred and showed lower recurrence-free survival at 5 years. However, the association between p53 expression and postoperative outcome was statistically significant in stage III tumors only. In this subgroup of patients, recurrence-free survival at 60 months was 60% in p53-negative tumors and was 26% in p53-positive tumors (p=0.010). In the multivariate analysis, p53 was an independent prognostic factor associated with a high risk of recurrence in stage III tumors (hazard ratio=2.76; 95% CI, 1.29-5.9; p=0.009). Overexpression of p53 showed prognostic value as a marker of high risk of recurrence in the form of metastases (hazard ratio=2.23; 95% CI, 1.04-4.75), but not as a prognostic marker of locoregional recurrence. No relationship was found between the state of p53 protein and the effect of postoperative adjuvant therapy. CONCLUSION The p53 protein does not have the same prognostic value in all tumoral stages. This protein is only predictive of high recurrence risk in the subgroup of patients with stage III tumors.
Collapse
Affiliation(s)
- Manuel Díez
- Departamento de Cirugía, Universidad de Alcalá, Hospital Príncipe de Asturias, Madrid, Spain.
| | | | | | | | | | | | | | | | | |
Collapse
|
14
|
Fernández-Cebrián JM, Vorwald Kuborn P, Pardo de Lama M, Sanjuanbenito Dehesa A, Nevado Santos M, Pacheco Martínez PA, Fernández-Escudero B. [Current status of the prognostic value of molecular markers in patients with colorectal cancer and the prediction of response to adjuvant therapy]. Clin Transl Oncol 2005; 7:101-9. [PMID: 15899217 DOI: 10.1007/bf02708742] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Colorectal cancer is one of the best studied of all malignant diseases in terms of genetics and/or molecular prognostic factors. These factors, and relationships with prognosis, may have important implications especially in the design of surgical and adjuvant chemo-radiotherapy options. However, the true prognostic significance of all known factors has yet to be realised. We have reviewed the literature with specific focus on the role of molecular markers involved in prognosis and the prediction of response to adjuvant treatment.
Collapse
Affiliation(s)
- Jose M Fernández-Cebrián
- Unidad de Cirugía General y Aparato Digestivo, Fundación Hospital Alcorcón, C/Budapest 1, Alcorcón, 28922 Madrid, Spain.
| | | | | | | | | | | | | |
Collapse
|
15
|
Shinto E, Tsuda H, Ueno H, Hashiguchi Y, Hase K, Tamai S, Mochizuki H, Inazawa J, Matsubara O. Prognostic implication of laminin-5 gamma 2 chain expression in the invasive front of colorectal cancers, disclosed by area-specific four-point tissue microarrays. J Transl Med 2005; 85:257-66. [PMID: 15516972 DOI: 10.1038/labinvest.3700199] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Abstract
The laminin-5 gamma 2 chain (LN-5gamma2) is known to be a marker of invasion in several cancer types. Our purpose was to examine the prognostic significance of LN-5gamma2 expression in different areas of individual colorectal cancers (CRCs) by using tissue microarrays (TMAs), and to clarify the optimal areas for prognostic assessment. Using formalin-fixed paraffin-embedded tissue blocks of pT3 primary CRCs resected from 120 patients, we constructed TMA blocks of tissue core specimens taken from the submucosal invasive front, subserosal invasive front, central area, and rolled edge of each tumor. Using these four-point TMA sets, cytoplasmic LN-5gamma2 expression was immunohistochemically surveyed, and the area-specific prognostic significance of LN-5gamma2 expression was evaluated. The data revealed that 35, 30, 15 and 10% of the 120 CRCs showed high-grade LN-5gamma2 expression in the submucosal invasive front, subserosal invasive front, central area and rolled edge, respectively. Disease-specific survival curves for the groups with high- and low-grade LN-5gamma2 in the submucosal invasive front and subserosal invasive front were different significantly or of marginal difference (respective 5-year survival rates: 54 and 78% for submucosal invasive front (P=0.030) and 58 and 75% for subserosal invasive front (P=0.055)). Multivariate analysis revealed that the grades of LN-5gamma2 expression in submucosal invasive front (hazard ratio=2.0, P=0.047) and subserosal invasive front (hazard ratio=2.9, P=0.0033) were independent prognostic factors. In contrast, the grades of LN-5gamma2 expression in the central area and rolled edge did not have a significant impact on patient prognosis. Analysis using area-specific four-point TMAs clearly demonstrated that LN-5gamma2 expression in the invasive front largely influences the degree of clinical aggressiveness of CRC and its tendency to metastasize.
Collapse
Affiliation(s)
- Eiji Shinto
- Department of Pathology II, National Defense Medical College, Tokorozawa, Japan
| | | | | | | | | | | | | | | | | |
Collapse
|
16
|
Graziano F, Catalano V, Baldelli AM, Cascinu S. Prognostic biomarkers in resected colorectal cancer: implications for adjuvant chemotherapy. Expert Rev Anticancer Ther 2001; 1:247-57. [PMID: 12113030 DOI: 10.1586/14737140.1.2.247] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Knowledge of the prognostic role of biomarkers in colorectal cancer is limited and the routine determination for clinical practice is not warranted. However, for some of these markers, data are promising enough for further evaluation. This review addresses a comprehensive analysis of prognostic biomarkers in colorectal cancer. Data from published studies were collected and analyzed. A sufficient level of evidence suggests that DNA indexes, angiogenesis indicators and some genetic/biochemical markers identity prognostic differences in patients with early-stage colorectal cancer. High-risk patients could be the target for future adjuvant chemotherapy trials and one or more of these markers may identify prognostic subgroups with the same TNM stage category.
Collapse
Affiliation(s)
- F Graziano
- University Hospital of Parma, via Gramsci 14, 43100 Parma, Italy
| | | | | | | |
Collapse
|
17
|
Schwandner O, Schiedeck TH, Bruch HP, Duchrow M, Windhoevel U, Broll R. Apoptosis in rectal cancer: prognostic significance in comparison with clinical histopathologic, and immunohistochemical variables. Dis Colon Rectum 2000; 43:1227-36. [PMID: 11005488 DOI: 10.1007/bf02237426] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
PURPOSE The aim of this study was to evaluate the prognostic value of the apoptotic index for recurrence and disease-free survival after curative surgery for rectal cancer, particularly in relation to clinicopathologic variables, p53- and bcl-2 expression. METHODS Formalin-fixed, paraffin-embedded tissue samples of rectal carcinomas resected curatively within a five-year period were used (N = 160). Apoptotic cells with fragmented DNA were detected by the terminal deoxynucleotidyl transferase-mediated deoxyuridine triphosphatase-biotin nick-end-labeling method. The ratio of apoptotic tumor cells (in percent) was classified into low apoptotic index (less than 10 percent) and high apoptotic index (10 percent or more). Immunohistochemical analysis was performed using monoclonal antibodies (DO-1 for p53 and clone 124 for bcl-2). Statistics included univariate and multivariate analysis, and survival was calculated using the Kaplan-Meier method. RESULTS Seventy-five percent of tumors showed a low apoptotic index, and 25 percent had a high apoptotic index. No correlation was found between apoptotic index and International Union Against Cancer stage (P > 0.05). However, significant correlations were documented with histologic differentiation (mean apoptotic index, 5.74 percent in moderately vs. 3.98 percent in poorly differentiated carcinomas; P = 0.0173), lymph node involvement (mean apoptotic index, 6.11 percent in pN1 vs. 3.72 percent in pN2; P = 0.0074), p53 status (mean apoptotic index, 6.26 percent in p53- vs. 4.42 percent in p53+; P = 0.0085), and bcl-2 expression (mean apoptotic index, 5.13 percent in bcl-2- vs. 6.51 percent in bcl-2+; P = 0.0418). Tumors of the lower rectum had a lower apoptotic index than those of the upper rectum (P = 0.0277). Neither univariate nor multivariate analysis assessed apoptotic index as predictor of prognosis: Recurrence rates did not differ between tumors related to apoptotic index (22 percent with low apoptotic index vs. 15 percent with high apoptotic index; P > 0.05), and no significant differences were found regarding survival (P > 0.05). On multivariate analysis, International Union Against Cancer stage (P = 0.0002), p53 (P = 0.0002), gender (P = 0.0136), and bcl-2 (P = 0.0243) were independent predictors of recurrence. These variables, except for bcl-2, were also independently related to disease-free survival. CONCLUSIONS Reflecting tumor biology, apoptotic index as single variable showed no prognostic significance, whereas p53 was an independent predictor for both recurrence and survival, and bcl-2 was independently related to recurrence, but not to survival. Clinically, International Union Against Cancer stage and gender were independent prognostic factors after curative surgery for rectal cancer.
Collapse
Affiliation(s)
- O Schwandner
- Department of Surgery, Medical University of Luebeck, Germany
| | | | | | | | | | | |
Collapse
|
18
|
Compton CC, Fielding LP, Burgart LJ, Conley B, Cooper HS, Hamilton SR, Hammond ME, Henson DE, Hutter RV, Nagle RB, Nielsen ML, Sargent DJ, Taylor CR, Welton M, Willett C. Prognostic factors in colorectal cancer. College of American Pathologists Consensus Statement 1999. Arch Pathol Lab Med 2000; 124:979-94. [PMID: 10888773 DOI: 10.5858/2000-124-0979-pficc] [Citation(s) in RCA: 846] [Impact Index Per Article: 35.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
BACKGROUND Under the auspices of the College of American Pathologists, the current state of knowledge regarding pathologic prognostic factors (factors linked to outcome) and predictive factors (factors predicting response to therapy) in colorectal carcinoma was evaluated. A multidisciplinary group of clinical (including the disciplines of medical oncology, surgical oncology, and radiation oncology), pathologic, and statistical experts in colorectal cancer reviewed all relevant medical literature and stratified the reported prognostic factors into categories that reflected the strength of the published evidence demonstrating their prognostic value. Accordingly, the following categories of prognostic factors were defined. Category I includes factors definitively proven to be of prognostic import based on evidence from multiple statistically robust published trials and generally used in patient management. Category IIA includes factors extensively studied biologically and/or clinically and repeatedly shown to have prognostic value for outcome and/or predictive value for therapy that is of sufficient import to be included in the pathology report but that remains to be validated in statistically robust studies. Category IIB includes factors shown to be promising in multiple studies but lacking sufficient data for inclusion in category I or IIA. Category III includes factors not yet sufficiently studied to determine their prognostic value. Category IV includes factors well studied and shown to have no prognostic significance. MATERIALS AND METHODS The medical literature was critically reviewed, and the analysis revealed specific points of variability in approach that prevented direct comparisons among published studies and compromised the quality of the collective data. Categories of variability recognized included the following: (1) methods of analysis, (2) interpretation of findings, (3) reporting of data, and (4) statistical evaluation. Additional points of variability within these categories were defined from the collective experience of the group. Reasons for the assignment of an individual prognostic factor to category I, II, III, or IV (categories defined by the level of scientific validation) were outlined with reference to the specific types of variability associated with the supportive data. For each factor and category of variability related to that factor, detailed recommendations for improvement were made. The recommendations were based on the following aims: (1) to increase the uniformity and completeness of pathologic evaluation of tumor specimens, (2) to enhance the quality of the data needed for definitive evaluation of the prognostic value of individual prognostic factors, and (3) ultimately, to improve patient care. RESULTS AND CONCLUSIONS Factors that were determined to merit inclusion in category I were as follows: the local extent of tumor assessed pathologically (the pT category of the TNM staging system of the American Joint Committee on Cancer and the Union Internationale Contre le Cancer [AJCC/UICC]); regional lymph node metastasis (the pN category of the TNM staging system); blood or lymphatic vessel invasion; residual tumor following surgery with curative intent (the R classification of the AJCC/UICC staging system), especially as it relates to positive surgical margins; and preoperative elevation of carcinoembryonic antigen elevation (a factor established by laboratory medicine methods rather than anatomic pathology). Factors in category IIA included the following: tumor grade, radial margin status (for resection specimens with nonperitonealized surfaces), and residual tumor in the resection specimen following neoadjuvant therapy (the ypTNM category of the TNM staging system of the AJCC/UICC). (ABSTRACT TRUNCATED)
Collapse
|
19
|
Compton C, Fenoglio-Preiser CM, Pettigrew N, Fielding LP. American Joint Committee on Cancer Prognostic Factors Consensus Conference: Colorectal Working Group. Cancer 2000; 88:1739-57. [PMID: 10738234 DOI: 10.1002/(sici)1097-0142(20000401)88:7<1739::aid-cncr30>3.0.co;2-t] [Citation(s) in RCA: 425] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
BACKGROUND The American Joint Committee on Cancer (AJCC), which regularly reviews TNM staging systems, established a working party to develop recommendations for colorectal carcinoma. METHODS A multidisciplinary consensus conference using published literature developed an arbitrary classification system of prognostic marker value (Category I, IIA, IIB, III, and IV), which forms the framework for this report. RESULTS The working party concluded that several T categories should be subdivided: pTis into intraepithelial carcinoma (pTie) and intramucosal carcinoma (pTim); pT1 into pT1a and pT1b corresponding to the absence or presence of blood or lymphatic vessel invasion, respectively; and pT4 into pT4a and pT4b according to the absence or presence of tumor involving the surface of the specimen, respectively. The working party also recommended that TNM groups be stratified based on the presence or absence of elevated serum levels of carcinoembryonic antigen (CEA) (>/= 5 ng/mL) on preoperative clinical examination. In addition, the working party also concluded that carcinoma of the appendix should be excluded from the colorectal carcinoma staging system because of fundamental differences in natural history. CONCLUSIONS The TNM categories and stage groupings for colorectal carcinoma published in the current AJCC manual have clinical and academic value. However, a few categories require subdivision to provide increasing discrimination for individual patients. The serum marker CEA should be added to the staging system, whereas multiple other factors should be recorded as part of good clinical practice. Although many molecular and oncogenic markers show promise to supplement or modify the current staging systems eventually, to the authors' knowledge none have yet been evaluated sufficiently to recommend their inclusion in the TNM system.
Collapse
Affiliation(s)
- C Compton
- Massachusetts General Hospital Boston, Massachusetts, USA
| | | | | | | |
Collapse
|
20
|
Ikeguchi M, Sato N, Hirooka Y, Kaibara N. Computerized nuclear morphometry of hepatocellular carcinoma and its relation to proliferative activity. J Surg Oncol 1998; 68:225-30. [PMID: 9721707 DOI: 10.1002/(sici)1096-9098(199808)68:4<225::aid-jso4>3.0.co;2-6] [Citation(s) in RCA: 23] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND OBJECTIVES Nuclear profiles have been reported as useful prognostic predictor in various cancers. Data from computerized morphometries are objective and can be quickly derived using conventional microscopic analysis. However, it remains to be shown what types of pathological and biological factors influence the nuclear features. The aim of this study was to evaluate the correlation between the morphological nuclear features and clinicopathological parameters in patients with hepatocellular carcinoma (HCC). METHODS Morphometric nuclear features (nuclear area, perimeter, and shape) were analyzed in 76 patients with hepatocellular carcinoma who underwent hepatectomy at our hospital. In each case, 300 cancer nuclei were analyzed randomly on routine hematoxylin&eosin-stained slides through the use of a computer-assisted image analysis system that allowed us to trace the nuclear profiles (magnification x400) on a computer monitor. The morphometric data were compared with patient survival, clinicopathologic status, and the proliferative activity of cancer cells. RESULTS The mean nuclear area of poorly differentiated carcinoma was significantly larger than that of moderately and well differentiated carcinoma (P = 0.0003). Significant correlation was detected between the nuclear area of cancer cells and proliferative activity associated with proliferating cell nuclear antigen labeling index (PCNA LI) of cancer cells (r = 0.372, P = 0.0008). Moreover, blood vessel invasion of cancer cells or intrahepatic metastasis were more frequently detected in patients with large nuclear areas. Even though the nuclear area was not an independent prognostic factor in the multivariate analysis, the 5-year survival rate of the 35 patients who had tumors with large nuclear areas (>50 microm2, 25.9%) was significantly lower than that of the 36 patients who had tumors with small nuclear areas (< or =50 microm2, 63.3%, P = 0.001). CONCLUSIONS The nuclear area of HCC correlates with cell differentiation and cell proliferative activity. Moreover, HCC with a large nuclear area has high potential for blood vessel invasion and intrahepatic metastasis. Thus, nuclear morphometry can be used as an useful morphological predictor for malignant potential in patients with HCC.
Collapse
Affiliation(s)
- M Ikeguchi
- Department of Surgery I, Faculty of Medicine, Tottori University, Yonago, Japan
| | | | | | | |
Collapse
|