1
|
Kariri YA, Joseph C, Alsaleem MA, Elsharawy KA, Alsaeed S, Toss MS, Mongan NP, Green AR, Rakha EA. Mechanistic and Clinical Evidence Supports a Key Role for Cell Division Cycle Associated 5 (CDCA5) as an Independent Predictor of Outcome in Invasive Breast Cancer. Cancers (Basel) 2022; 14:cancers14225643. [PMID: 36428736 PMCID: PMC9688237 DOI: 10.3390/cancers14225643] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Revised: 11/12/2022] [Accepted: 11/15/2022] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Cell Division Cycle Associated 5 (CDCA5) plays a role in the phosphoinositide 3-kinase (PI3K)/AKT/mTOR signalling pathway involving cell division, cancer cell migration and apoptosis. This study aims to assess the prognostic and biological value of CDCA5 in breast cancer (BC). METHODS The biological and prognostic value of CDCA5 were evaluated at mRNA (n = 5109) and protein levels (n = 614) utilizing multiple well-characterized early stage BC cohorts. The effects of CDCA5 knockdown (KD) on multiple oncogenic assays were assessed in vitro using a panel of BC cell lines. RESULTS this study examined cohorts showed that high CDCA5 expression was correlated with features characteristic of aggressive behavior and poor prognosis, including the presence of high grade, large tumor size, lymphovascular invasion (LVI), hormone receptor negativity and HER2 positivity. High CDCA5 expression, at both mRNA and protein levels, was associated with shorter BC-specific survival independent of other variables (p = 0.034, Hazard ratio (HR) = 1.6, 95% CI; 1.1-2.3). In line with the clinical data, in vitro models indicated that CDCA5 depletion results in a marked decrease in BC cell invasion and migration abilities and a significant accumulation of the BC cells in the G2/M-phase. CONCLUSIONS These results provide evidence that CDCA5 plays an important role in BC development and metastasis and could be used as a potential biomarker to predict disease progression in BC.
Collapse
Affiliation(s)
- Yousif A. Kariri
- Academic Unit for Translational Medical Sciences, School of Medicine, Biodiscovery Institute, University Park Campus, University of Nottingham, Nottingham NG7 2RD, UK
- Department of Clinical Laboratory Science, Faculty of Applied Medical Science, Shaqra University, Shaqra 11961, Saudi Arabia
- Nottingham Breast Cancer Research Centre, Nottingham NG7 2RD, UK
| | - Chitra Joseph
- School of Medicine, Nottingham City Hospital, Nottingham University Hospitals NHS Trust and The University of Nottingham, Nottingham NG5 1PB, UK
| | - Mansour A. Alsaleem
- Academic Unit for Translational Medical Sciences, School of Medicine, Biodiscovery Institute, University Park Campus, University of Nottingham, Nottingham NG7 2RD, UK
- Nottingham Breast Cancer Research Centre, Nottingham NG7 2RD, UK
- Department of Applied Medical Science, Applied College, Qassim University, Unayzah 56435, Saudi Arabia
| | - Khloud A. Elsharawy
- Academic Unit for Translational Medical Sciences, School of Medicine, Biodiscovery Institute, University Park Campus, University of Nottingham, Nottingham NG7 2RD, UK
- Nottingham Breast Cancer Research Centre, Nottingham NG7 2RD, UK
- Department of Zoology, Faculty of Science, Damietta University, Damietta 34517, Egypt
| | - Sami Alsaeed
- Academic Unit for Translational Medical Sciences, School of Medicine, Biodiscovery Institute, University Park Campus, University of Nottingham, Nottingham NG7 2RD, UK
- Nottingham Breast Cancer Research Centre, Nottingham NG7 2RD, UK
- Department of Clinical Laboratory Science, Faculty of Applied Medical Sciences, Northern Border University, Arar 73244, Saudi Arabia
| | - Michael S. Toss
- Nottingham Breast Cancer Research Centre, Nottingham NG7 2RD, UK
- School of Medicine, Nottingham City Hospital, Nottingham University Hospitals NHS Trust and The University of Nottingham, Nottingham NG5 1PB, UK
| | - Nigel P. Mongan
- Biodiscovery Institute, Faculty of Medicine and Health Sciences, School of Veterinary Medicine and Science, University of Nottingham, Nottingham NG7 2RD, UK
- Department of Pharmacology, Weill Cornell Medicine, New York, NY 10065, USA
| | - Andrew R. Green
- Academic Unit for Translational Medical Sciences, School of Medicine, Biodiscovery Institute, University Park Campus, University of Nottingham, Nottingham NG7 2RD, UK
- Nottingham Breast Cancer Research Centre, Nottingham NG7 2RD, UK
| | - Emad A. Rakha
- Academic Unit for Translational Medical Sciences, School of Medicine, Biodiscovery Institute, University Park Campus, University of Nottingham, Nottingham NG7 2RD, UK
- Nottingham Breast Cancer Research Centre, Nottingham NG7 2RD, UK
- School of Medicine, Nottingham City Hospital, Nottingham University Hospitals NHS Trust and The University of Nottingham, Nottingham NG5 1PB, UK
- Correspondence: or ; Tel.: +44-0115-9691169; Fax: +44-0115-9627768
| |
Collapse
|
2
|
Kariri Y, Toss MS, Alsaleem M, Elsharawy KA, Joseph C, Mongan NP, Green AR, Rakha EA. Ubiquitin-conjugating enzyme 2C (UBE2C) is a poor prognostic biomarker in invasive breast cancer. Breast Cancer Res Treat 2022; 192:529-539. [PMID: 35124721 PMCID: PMC8960565 DOI: 10.1007/s10549-022-06531-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Accepted: 01/19/2022] [Indexed: 12/14/2022]
Abstract
Abstract
Background
The Ubiquitin-conjugating enzyme 2C (UBE2C) is essential for the ubiquitin–proteasome system and is involved in cancer cell migration and apoptosis. This study aimed to determine the prognostic value of UBE2C in invasive breast cancer (BC).
Methods
UBE2C was evaluated using the Molecular Taxonomy of Breast Cancer International Consortium (n = 1980), The Cancer Genome Atlas (n = 854) and Kaplan–Meier Plotter (n = 3951) cohorts. UBE2C protein expression was assessed using immunohistochemistry in the BC cohort (n = 619). The correlation between UBE2C, clinicopathological parameters and patient outcome was assessed.
Results
High UBE2C mRNA and protein expressions were correlated with features of poor prognosis, including high tumour grade, large size, the presence of lymphovascular invasion, hormone receptor negativity and HER2 positivity. High UBE2C mRNA expression showed a negative association with E-cadherin, and a positive association with adhesion molecule N-cadherin, matrix metalloproteinases and cyclin-related genes. There was a positive correlation between high UBE2C protein expression and cell cycle-associated biomarkers, p53, Ki67, EGFR and PI3K. High UBE2C protein expression was an independent predictor of poor outcome (p = 0.011, HR = 1.45, 95% CI; 1.10–1.93).
Conclusion
This study indicates that UBE2C is an independent prognostic biomarker in BC. These results warrant further functional validation for UBE2C as a potential therapeutic target in BC.
Collapse
Affiliation(s)
- Yousif Kariri
- Academic Unit for Translational Medical Sciences, School of Medicine, University of Nottingham Biodiscovery Institute, University Park, Nottingham, NG7 2RD, UK
- Department of Clinical Laboratory Science, Faculty of Applied Medical Science, Shaqra University, 33, Shaqra, 11961, Saudi Arabia
| | - Michael S Toss
- Academic Unit for Translational Medical Sciences, School of Medicine, University of Nottingham Biodiscovery Institute, University Park, Nottingham, NG7 2RD, UK
| | - Mansour Alsaleem
- Academic Unit for Translational Medical Sciences, School of Medicine, University of Nottingham Biodiscovery Institute, University Park, Nottingham, NG7 2RD, UK
- Department of Applied Medical Science, Applied Collage in Unazyzah, Qassim University, Qassim, Saudi Arabia
| | - Khloud A Elsharawy
- Academic Unit for Translational Medical Sciences, School of Medicine, University of Nottingham Biodiscovery Institute, University Park, Nottingham, NG7 2RD, UK
- Department of Zoology, Faculty of Science, Damietta University, Damietta, 34517, Egypt
| | - Chitra Joseph
- Academic Unit for Translational Medical Sciences, School of Medicine, University of Nottingham Biodiscovery Institute, University Park, Nottingham, NG7 2RD, UK
| | - Nigel P Mongan
- Biodiscovery Institute, Faculty of Medicine and Health Sciences, School of Veterinary Medicine and Science, University of Nottingham, Nottingham, NG7 2RD, UK
- Department of Pharmacology, Weill Cornell Medicine, New York, NY, 10065, USA
| | - Andrew R Green
- Academic Unit for Translational Medical Sciences, School of Medicine, University of Nottingham Biodiscovery Institute, University Park, Nottingham, NG7 2RD, UK
| | - Emad A Rakha
- Academic Unit for Translational Medical Sciences, School of Medicine, University of Nottingham Biodiscovery Institute, University Park, Nottingham, NG7 2RD, UK.
- Department of Histopathology, Nottingham University Hospital NHS Trust, City Hospital Campus, Hucknall Road, Nottingham, NG5 1PB, UK.
| |
Collapse
|
3
|
Sarais V, Cermisoni GC, Schimberni M, Alteri A, Papaleo E, Somigliana E, Vigano' P. Human Chorionic Gonadotrophin as a Possible Mediator of Leiomyoma Growth during Pregnancy: Molecular Mechanisms. Int J Mol Sci 2017; 18:E2014. [PMID: 28930160 PMCID: PMC5618662 DOI: 10.3390/ijms18092014] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2017] [Revised: 09/12/2017] [Accepted: 09/13/2017] [Indexed: 12/25/2022] Open
Abstract
Uterine fibroids are the most common gynecologic benign tumors. Studies supporting a strong pregnancy-related growth of leiomyomas generally claimed a crucial role of sex steroid hormones. However, sex steroids are unlikely the unique actors involved as estrogen and progesterone achieve a pick serum concentration in the last trimester while leiomyomas show a typical increase during the first trimester. Given the rapid exponential raise in serum human Chorionic Gonadotrophin (hCG) at the beginning of gestation, we conducted a review to assess the potential role of hCG in the striking growth of leiomyomas during initial pregnancy. Fibroid growth during initial pregnancy seems to correlate to the similar increase of serum hCG levels until 12 weeks of gestation. The presence of functional Luteinizing Hormone/human Chorionic Gonadotropin (LH/hCG) receptors was demonstrated on leiomyomas. In vitro treatment of leiomyoma cells with hCG determines an up to 500% increase in cell number after three days. Expression of cyclin E and cyclin-dependent kinase 1 was significantly increased in leiomyoma cells by hCG treatment. Moreover, upon binding to the receptor, hCG stimulates prolactin secretion in leiomyoma cells, promoting cell proliferation via the mitogen-activated protein kinase cascade. Fibroid enlargement during initial pregnancy may be regulated by serum hCG.
Collapse
Affiliation(s)
- Veronica Sarais
- Centro Scienze Natalità, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy.
| | - Greta Chiara Cermisoni
- Division of Genetics and Cell Biology, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy.
| | - Matteo Schimberni
- Centro Scienze Natalità, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy.
| | - Alessandra Alteri
- Division of Genetics and Cell Biology, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy.
| | - Enrico Papaleo
- Centro Scienze Natalità, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy.
| | - Edgardo Somigliana
- Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico AND Università degli Studi di Milano, 20122 Milan, Italy.
| | - Paola Vigano'
- Division of Genetics and Cell Biology, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy.
| |
Collapse
|
4
|
Chegini N, Verala J, Luo X, Xu J, Williams RS. Gene Expression Profile of Leiomyoma and Myometrium and the Effect of Gonadotropin Releasing Hormone Analogue Therapy. ACTA ACUST UNITED AC 2016. [DOI: 10.1016/s1071-55760300004-2] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Nasser Chegini
- Department of Obstetrics and Gynecology, University of Florida College of Medicine, Gainesville, Florida; Department of OB/GYN, University of Florida, Box 100294, Gainesville FL 32610
| | | | | | | | - R. Stan Williams
- Department of Obstetrics and Gynecology, University of Florida College of Medicine, Gainesville, Florida
| |
Collapse
|
5
|
TR1 promotes cell proliferation and inhibits apoptosis through cyclin A and CTGF regulation in non-small cell lung cancer. Tumour Biol 2014; 35:463-8. [PMID: 23959471 DOI: 10.1007/s13277-013-1064-9] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2013] [Accepted: 07/26/2013] [Indexed: 01/22/2023] Open
Abstract
The Hippo pathway plays a major role in development and organ size control, and its dysregulation contributes to tumorigenesis. WWTR1 is a transcription coactivator acting downstream of the Hippo pathway. Recently, WWTR1 has been reported to be overexpressed in several human cancers including lung cancer. However, the molecular mechanism of WWTR1 regulating lung cancer aggressiveness remains ambiguous. In the present study, we analyzed the expression of WWTR1 in NSCLC cell lines and found that WWTR1 was overexpressed at both the mRNA and protein levels. Knockdown of WWTR1 by siRNA interference in A549 cells significantly inhibited cell proliferation and increased paclitaxel-induced apoptosis. On the other side, WWTR1 overexpression in HBE cell line promoted cell proliferation and inhibited apoptosis. In addition, we found that the decreased proliferation after siRNA treatment was due to cell cycle arrest. Further analysis showed that WWTR1 could induce cyclin A, connective tissue growth factor (CTGF) expression, and inhibit caspase3 cleavage. In conclusion, WWTR1 promotes malignant cell growth and inhibits apoptosis by cyclin A and CTGF regulation.
Collapse
|
6
|
Chen Z, Huang X, Ye J, Pan P, Cao Q, Yang B, Li Z, Su M, Huang C, Gu J. Immunoglobulin G is present in a wide variety of soft tissue tumors and correlates well with proliferation markers and tumor grades. Cancer 2010; 116:1953-63. [PMID: 20186824 DOI: 10.1002/cncr.24892] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
BACKGROUND The traditional view that immunoglobulin (Ig) is produced only by B lymphocytes has been challenged, because it has been demonstrated that Ig genes and proteins are expressed in epithelial cancer cells. However, whether Ig expression in nonlymphoid cells is limited to epithelial cells is unclear. Because sarcomas differ distinctly from carcinomas in their biologic and clinical features, the authors investigated the question of nonlymphoid IgG expression in soft tissue lesions. METHODS Immunohistochemistry, in situ hybridization, and polymerase chain reaction (PCR) were used to demonstrate IgG expression in 80 soft tissue lesions. The correlation between Ig expression and proliferation markers (proliferating cell nuclear antigen [PCNA], Ki-67, and cyclin D1) in sarcomas was investigated by immunohistochemical and statistical analyses. RESULTS Igkappa was identified in 97.4% of sarcomas and in 31.7% of benign lesions by immunohistochemistry. The difference was statistically significant (P < .01). Messenger RNA from the IgG1 heavy-chain constant region was also detected by in situ hybridization. Variable-diversity-joining recombination sequences of both heavy and light chains were obtained by PCR and sequencing. Moreover, the labeling index of PCNA, Ki-67, and cyclin D1 was much higher in sarcomas with high Igkappa expression than in sarcomas with low Igkappa expression (P < .01 for PCNA and cyclin D1; P < .001 for Ki-67). There were more grade 3 sarcomas with high Igkappa expression compared with grade 1 and 2 sarcomas (P < .05). CONCLUSIONS IgG was identified in a wide variety of soft tissue tumors and correlated well with proliferation markers and tumor grades. IgG may be a useful marker for cell proliferation in sarcomas.
Collapse
Affiliation(s)
- Zhengshan Chen
- Department of Pathology, Shantou University Medical College, Shantou, China
| | | | | | | | | | | | | | | | | | | |
Collapse
|
7
|
Differences in protein expression and gene amplification of cyclins between colon and rectal adenocarcinomas. Gastroenterol Res Pract 2009; 2009:285830. [PMID: 20029639 PMCID: PMC2796221 DOI: 10.1155/2009/285830] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/22/2009] [Accepted: 09/23/2009] [Indexed: 12/20/2022] Open
Abstract
Adenocarcinomas of rectum and colon may be different with regard to the cellular biological basis for cancer development. A material of 246 rectal cancers removed surgically at Akershus University Hospital in the years 1992–2000 was investigated and was compared to a material of 219 colon cancers operated on at Akershus University Hospital during the years 1988, 1990 and 1997–2000. There were highly significant differences between the rectal and the colon cancers in the protein expression of cyclin D1, cyclin D3, cyclin E, nuclear β-catenin, and c-Myc and in gene amplification of cyclin A2, cyclin B1, cyclin D1, and cyclin E. Gene amplification and protein expression in the rectal cancers correlated significantly for the cyclins B1, D3, and E. A statistically significant relation was observed between overexpression of cyclin A2 and local relapse of rectal carcinomas, as higher expression of cyclin A2 was associated with lower local recurrence rate.
Collapse
|
8
|
Meng GZ, Zhang HY, Bu H, Geng JG. Low-grade fibromyxoid sarcoma versus fibromatosis: A comparative study of clinicopathological and immunohistochemical features. Diagn Cytopathol 2009; 37:96-102. [DOI: 10.1002/dc.20967] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
9
|
Fernebro J, Engellau J, Persson A, Rydholm A, Nilbert M. Standardizing evaluation of sarcoma proliferation- higher Ki-67 expression in the tumor periphery than the center. APMIS 2007; 115:707-12. [PMID: 17550378 DOI: 10.1111/j.1600-0463.2007.apm_650.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Soft tissue sarcomas often present as large and histopathologically heterogenous tumors. Proliferation has repeatedly been identified as a prognostic factor and immunostaining for Ki-67 represents the most commonly used proliferation marker. There is, however, a lack of consensus on how to evaluate Ki-67 staining regarding optimal cut-off levels, selection of tumor areas, and the number of tumor cells to evaluate. We assessed the impact of targeting peripheral versus central tumor areas using tissue microarray-based staining for Ki-67 throughout the tumor diameter in 25 leiomyosarcomas. In 18/25 tumors, Ki-67 expression was higher in the tumor periphery. If 10% staining tumor nuclei was used as cut-off and the maximal Ki-67 staining section in the tumor periphery was considered, 21/25 tumors would have been classified as highly proliferative compared to 14/25 if the tumor center had been analyzed. Similar results were obtained also when higher cut-off levels were used and if the mean expression rather than the maximal expression was considered and the differences were neither caused by necrosis nor by hypoxia (assessed as HIF-1alpha expression). Our findings suggest that the determination of proliferation in soft tissue sarcomas should be standardized for clinical application of Ki-67 as a prognostic marker.
Collapse
Affiliation(s)
- Josefin Fernebro
- Department of Oncology, Institute of Clinical Sciences, Lund University Hospital, Lund, Sweden.
| | | | | | | | | |
Collapse
|
10
|
Abstract
A small polypoid lesion was removed from the incisive papilla region of a healthy female aged 8 years. It was composed of non-cycling smooth muscle fibres that were immunoreactive for various muscle antigens, surrounded by basement membrane containing collagen IV, arranged as bundles and mixed with CD34(+) interstitial cells, mast cells, dendrocytes and nerves. The lesion could be attributed to dysgenesis affecting media of vessels emerging from the incisive foramen. Intra-oral smooth muscle hamartomas tend to favour regions featuring complex developmental events.
Collapse
Affiliation(s)
- H Zaitoun
- Paediatric Dentistry, Department and School of Dental Studies, The University of Liverpool, Liverpool, UK
| | | |
Collapse
|
11
|
Jones RJ, Boyce T, Fennell M, Jacobs V, Pinto F, Duffield E, Clack G, Green T, Kelly J, Robertson J. The impact of delay in cryo-fixation on biomarkers of Src tyrosine kinase activity in human breast and bladder cancers. Cancer Chemother Pharmacol 2007; 61:23-32. [PMID: 17909809 DOI: 10.1007/s00280-007-0440-9] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2006] [Accepted: 02/16/2007] [Indexed: 12/22/2022]
Abstract
Demonstration of pharmacodynamic activity of new, targeted cancer drugs in tumour tissue is potentially important in guiding early drug development. However, delays between tumour sampling and sample fixation may result in variability of pharmacodynamic biomarkers. The aim of this study, was to assess the impact of delays in fixation on biomarkers of Src kinase activity. A total of 20 patients with locally advanced breast cancer and 5 with early bladder cancer had multiple tissue samples taken which were fixed at documented time points up to 60 min after biopsy. These were examined to determine if the amount of Paxillin, phospho-Paxillin, phospho-focal adhesion kinase (FAK) and total phospho-Tyrosine changed over time, using a quantitative lysate immunoassay. In breast cancer, there was an increase in the amount of phospho-Paxillin (60% per h; P = 0.019) up to 60 min after biopsy. The amount of total Paxillin decreased (28% per h; P = 0.034) over the same time course. In early bladder cancer, no changes were noted in any endpoints up to 45 min. Standardisation of the time taken between biopsy and fixation may be critical, particularly in studies using phosphorylated protein biomarkers.
Collapse
Affiliation(s)
- Rob J Jones
- Beatson Oncology Centre, Western Infirmary of Glasgow, Glasgow, G11 6NT, UK.
| | | | | | | | | | | | | | | | | | | |
Collapse
|
12
|
Mrena J, Wiksten JP, Kokkola A, Nordling S, Haglund C, Ristimäki A. Prognostic significance of cyclin A in gastric cancer. Int J Cancer 2006; 119:1897-901. [PMID: 16708383 DOI: 10.1002/ijc.21944] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
High level of cyclin A promotes carcinogenesis, and overexpression of cyclin A has been associated with poor prognosis of cancer patients. We validated the prognostic role of cyclin A in gastric cancer and evaluated its correlation with expression of an mRNA stability factor HuR. From 342 consecutive histologically confirmed gastric cancer patients were obtained 325 representative tissue specimens for cyclin A and 316 for HuR immunohistochemistry. Specimens were stained by cyclin A and HuR specific monoclonal antibodies. Nuclear immunostaining detected in > or =5% of the tumor cells was considered the cut-off for cyclin A positivity. Positive HuR immunoreactivity was scored as nuclear or cytoplasmic. Associations between scores, clinicopathological factors and survival were calculated by the chi2-test, Fisher's exact test, Kaplan-Meier test and Cox model. Cyclin A detected in the nuclei of cancer cells was positive in 55% (179 of 325) of the specimens; 40% (127 of 316) of the specimens had cytoplasmic and 88% (279 of 316) nuclear immunoreactivity of HuR. Cyclin A expression was an independent prognostic factor for poor survival. Cyclin A immunoreactivity was associated with old age, high stage, proximal location of the tumor, intestinal type, noncurative resection, advanced penetration depth and with nodal metastases but not distant metastases. Furthermore, cyclin A expression was associated with cytoplasmic HuR expression, whereas no association with nuclear HuR was evident. Cyclin A is an independent prognostic factor in gastric cancer, and one mechanism for its overexpression may depend on cytoplasmic localization of HuR.
Collapse
Affiliation(s)
- Johanna Mrena
- Department of Surgery, Helsinki University Central Hospital, Helsinki, Finland
| | | | | | | | | | | |
Collapse
|
13
|
Kanta SY, Yamane T, Dobashi Y, Mitsui F, Kono K, Ooi A. Topoisomerase IIalpha gene amplification in gastric carcinomas: correlation with the HER2 gene. An immunohistochemical, immunoblotting, and multicolor fluorescence in situ hybridization study. Hum Pathol 2006; 37:1333-43. [PMID: 16949920 DOI: 10.1016/j.humpath.2006.05.008] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/13/2006] [Revised: 05/12/2006] [Accepted: 05/18/2006] [Indexed: 11/29/2022]
Abstract
Topoisomerase IIalpha (topoIIalpha) is an enzyme required for DNA replication and a molecular target for drugs called anthracyclines. The topoIIalpha gene (TOP2A) is located close to the HER-2/neu oncogene (HER2). We assessed gastric cancers to (1) clarify the relationship between gene amplification and protein overexpression of topoIIalpha and HER2; (2) evaluate the correlation between gene amplification and protein overexpression of topoIIalpha; and (3) examine the relationship between the results of immunohistochemistry and Western blot analysis for topoIIalpha. In a combined analysis of immunohistochemistry and fluorescence in situ hybridization on 552 formalin-fixed and paraffin-embedded gastric cancer tissues, 38 cases were found to have HER2 amplification. Further examination by fluorescence in situ hybridization revealed amplification of TOP2A in 13 of the 38 cases. No aberrations in the TOP2A gene were observed in cases without HER2 overexpression, except for one containing a gene deletion. The TopoIIalpha protein-labeling index was not correlated with TOP2A amplification. Fluorescence in situ hybridization was performed on nuclear imprint specimens obtained from 9 cases using simultaneous probes for TOP2A, HER2, and centromere 17. Of these 9 cases, 3 displayed coamplification of TOP2A and HER2, and only 1 of the 3 cases revealed a high expression of topoIIalpha in Western blot. Although patients having gastric adenocarcinoma with TOP2A amplification could be considered suitable for clinical trials, information involving anthracycline therapy is not firmly understood in regards to the status of TOP2A amplification or protein overexpression. Therefore, results of the current study will provide further insight for the clinical application of anthracycline in gastric cancers.
Collapse
MESH Headings
- Adenocarcinoma/enzymology
- Adenocarcinoma/genetics
- Adenocarcinoma/pathology
- Antigens, Neoplasm/genetics
- Antigens, Neoplasm/metabolism
- Biomarkers, Tumor/metabolism
- Blotting, Western
- DNA Topoisomerases, Type II/genetics
- DNA Topoisomerases, Type II/metabolism
- DNA, Neoplasm/analysis
- DNA-Binding Proteins/genetics
- DNA-Binding Proteins/metabolism
- Female
- Gene Amplification
- Gene Dosage
- Genes, erbB-2
- Humans
- Immunohistochemistry
- In Situ Hybridization, Fluorescence/methods
- Male
- Middle Aged
- Neoplasm Staging
- Poly-ADP-Ribose Binding Proteins
- Receptor, ErbB-2/metabolism
- Stomach Neoplasms/enzymology
- Stomach Neoplasms/genetics
- Stomach Neoplasms/pathology
Collapse
Affiliation(s)
- Sammy Yasmin Kanta
- Department of Pathology, School of Medicine, University of Yamanashi, Yamanashi 409-3898, Japan
| | | | | | | | | | | |
Collapse
|
14
|
Sandberg AA. Updates on the cytogenetics and molecular genetics of bone and soft tissue tumors: leiomyosarcoma. ACTA ACUST UNITED AC 2005. [DOI: 10.1016/j.cancergencyto.2004.11.009] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
|
15
|
Abstract
Cell cycle is strictly regulated by complex and redundant mechanisms. Basically, cell cycle transition is promoted by accelerator molecules termed 'cyclin' and 'cyclin-dependent kinase' (cdk), and inhibited by brake molecules termed 'cdk-inhibitor' (CKI). Although based on the results of early experimental studies and of clinicopathological analyses, there was much speculation that gene aberration of those molecules would be common; this has not turned out to be the case. One reason may be that activation or inactivation of a single molecule by itself usually does not lead to cell transformation, but rather to apoptosis. Successful transformation and unchecked cell proliferation appears to require the coordinated up-regulation of cyclin/cdk and/or suppression of CKI. In this article, I focus on the precise regulation of the cell cycle and describe abnormalities found in these proteins in lung carcinoma. Notable findings in lung carcinoma include: (i) cyclin A/cdk2 plays a key role in cell proliferation, while protein amount of cyclin E does not necessarily reflect cellular proliferative activity, depending on the tumor type; (ii) CKI function not only as suppressors, but also as activators of cdk, depending on expression levels; and (iii) aberrant expression of cyclin/cdk can lead to apoptosis in vivo in humans. Another key point is that as lung carcinoma is composed of a mixture of heterogeneous histological subtypes, the growth control of carcinoma cells is diversely regulated, depending on each histological subtype. This diversity is also described with our experimental results.
Collapse
Affiliation(s)
- Yoh Dobashi
- Department of Pathology, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Yamanashi, Japan.
| |
Collapse
|
16
|
Sandberg AA. Updates on the cytogenetics and molecular genetics of bone and soft tissue tumors: leiomyoma. ACTA ACUST UNITED AC 2005; 158:1-26. [PMID: 15771900 DOI: 10.1016/j.cancergencyto.2004.08.025] [Citation(s) in RCA: 78] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2004] [Revised: 08/11/2004] [Accepted: 08/11/2004] [Indexed: 12/22/2022]
Affiliation(s)
- Avery A Sandberg
- Department of DNA Diagnostics, St. Joseph's Hospital and Medical Center, 350 West Thomas Road, Phoenix, AZ 85013, USA.
| |
Collapse
|
17
|
Dobashi Y, Takei N, Suzuki S, Yoneyama H, Hanawa M, Ooi A. Aberration of epidermal growth factor receptor expression in bone and soft-tissue tumors: protein overexpression, gene amplification and activation of downstream molecules. Mod Pathol 2004; 17:1497-505. [PMID: 15254554 DOI: 10.1038/modpathol.3800218] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
In order to evaluate the involvement of epidermal growth factor receptor, and to analyze the correlation between gene aberration and protein expression in mesenchymal tumors, we examined protein expression by immunohistochemistry in 125 cases of bone and soft-tissue tumors. Furthermore, amplification of epidermal growth factor receptor gene was determined by fluorescence in situ hybridization. Positive immunostaining was found in 23 cases (18.4%). Among these 23 cases, one of malignant fibrous histiocytoma showed the highest degree (3+) of protein overexpression and gene amplification as clusters of hybridization signals, indicating homogeneously staining regions. The second case of malignant fibrous histiocytoma also showed a higher degree (2+) of overexpression and coamplification of the epidermal growth factor receptor gene with the centromeric regions, indicating polysomy of chromosome 7. The levels of expression observed in immunohistochemistry were confirmed by immunoblotting and found to be comparable. Moreover, although expression of phosphorylated epidermal growth factor receptor was detected in those two cases of malignant fibrous histiocytoma, constitutive activation of extracellular signal-related protein kinase 1/2 was not observed, suggesting that activation of epidermal growth factor receptor does not necessarily and constantly lead to signal transduction to the downstream molecules. In the remaining 123 cases, including 21 cases exhibiting weak (1+) immunoreactivity, no gene amplification nor polysomy was found. Collectively, expression of epidermal growth factor receptor was observed not infrequently in mesenchymal tumors, but 'overexpression' is rare and can be attributed to an increase in gene copy number, resulting from amplification or polysomy. Although cases that scored positive for protein expression and/or gene amplification could be qualified candidates for antiepidermal growth factor receptor therapies, further examination of the status of downstream molecules in the signal cascade, such as phosphorylated epidermal growth factor receptor and extracellular signal-related protein kinase 1/2, may be required as the process of therapeutic strategy.
Collapse
Affiliation(s)
- Yoh Dobashi
- Department of Pathology, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Yamanashi, Japan.
| | | | | | | | | | | |
Collapse
|
18
|
Engellau J, Persson A, Bendahl PO, Akerman M, Domanski HA, Bjerkehagen B, Lilleng P, Weide J, Rydholm A, Alvegård TA, Nilbert M. Expression profiling using tissue microarray in 211 malignant fibrous histiocytomas confirms the prognostic value of Ki-67. Virchows Arch 2004; 445:224-30. [PMID: 15309631 DOI: 10.1007/s00428-004-1065-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2004] [Accepted: 05/30/2004] [Indexed: 11/25/2022]
Abstract
The tissue microarray technology is a high-throughput technique that allows studies of multiple markers in large tumor materials. We performed immunohistochemical profiling using tissue microarray and immunostaining for Ki-67, p53, bcl-2, CD44, cyclin A and Pgp in a series of 211 malignant fibrous histiocytomas (MFHs) with correlation to prognosis. Tissue from 50 local recurrences and 20 metastases was available for comparison with the primary tumors. In univariate analysis, Ki-67 was the only immunohistochemical marker significantly correlated with metastasis with a hazard ratio of 1.9. Multivariate analysis, with tumor size, depth, necrosis, vascular invasion, mitotic rate and Ki-67 expression, revealed an independent prognostic value of tumor size and Ki-67. Local recurrences did not differ from the corresponding primary tumors, whereas metastases showed a trend for upregulation of cyclin A and Pgp. In this large series of MFHs, a tumor size greater than 8 cm and a Ki-67 index of more than 20% were strong and independent prognostic factors for metastasis. In contrast, p53, bcl-2, CD44, cyclin A and Pgp, which have previously been suggested as prognostic factors in soft tissue sarcomas, did not show such correlations. Hence, we suggest that proliferation, as measured by Ki-67 index, should be considered as a prognostic marker in clinical management of pleomorphic soft tissue sarcomas.
Collapse
Affiliation(s)
- Jacob Engellau
- Department of Oncology, Jubileum Institution, Lund University, 22185 Lund, Sweden.
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
19
|
Oda Y, Takahira T, Kawaguchi K, Yamamoto H, Tamiya S, Matsuda S, Tanaka K, Iwamoto Y, Tsuneyoshi M. Low-grade fibromyxoid sarcoma versus low-grade myxofibrosarcoma in the extremities and trunk. A comparison of clinicopathological and immunohistochemical features. Histopathology 2004; 45:29-38. [PMID: 15228441 DOI: 10.1111/j.1365-2559.2004.01886.x] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
AIMS Low-grade fibromyxoid sarcoma (LGFMS) is a distinctive variant of fibrosarcoma and has been reported to have metastatic potential despite its low-grade histological findings. Low-grade myxofibrosarcoma (MFS) is an important differential diagnosis of LGMFS, because it shows different biological behaviour. Of 75 MFSs in the extremities and trunk, we defined 22 grade 1 tumours as low-grade MFS according to the French Federation of Cancer Centres grading system and compared the clinicopathological factors and immunohistochemical expression of cell cycle regulators with those of 11 LGFMSs. METHODS AND RESULTS The two entities could be distinguished on histological grounds. Low-grade MFS was characterized by the presence of prominent elongated, curvilinear capillaries and pseudolipoblasts, accompanied by an abundant myxoid matrix. It had no extensive solid areas. LGFMS was composed of bland spindle cells arranged in a whorled pattern with alternating myxoid and fibrous stroma. Curvilinear capillaries were not prominent and cytological atypia was absent. No tumour necrosis was observed in any of the 11 LGFMSs, whereas only one case showed tumour necrosis in less than 50% of the tumour in 22 low-grade MFSs. The patients with low-grade MFS were significantly older than those with LGFMS (low-grade MFS average, 60.1 years; LGFMS average, 31.5 years; P < 0.0001) and low-grade MFS occurred more frequently in a superficial location (low-grade MFS 14/20; LGFMS 2/11; P = 0.0077). As for cell cycle regulator expression, the MIB-1 labelling index (LI) (14.76 on average) and cyclin E LI (11.55 on average) in low-grade MFS were significantly higher than those (MIB-1 LI, 4.68 on average; cyclin E LI, 3.38 on average) of LGFMS, while p21 LI (25.53 on average) and p27 LI (42.68 on average) in low-grade MFS were significantly lower than those (p21 LI, 42.74 on average; p27 LI, 57.28 on average) of LGFMS. CONCLUSIONS We conclude that low-grade MFS and LGFMS are distinctly different clinicopathological entities and the assessment of the immunohistochemical expression of MIB-1, cyclin E, p21 and p27 as well as conventional clinicopathological features may be helpful to distinguish low-grade MFS from LGFMS.
Collapse
Affiliation(s)
- Y Oda
- Department of Anatomic Pathology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.
| | | | | | | | | | | | | | | | | |
Collapse
|
20
|
Zhu XQ, Shi YF, Chen XD, Wu YZ. Diagnostic implications of immunohistochemical markers in uterine smooth muscle tumors. Chin J Cancer Res 2004. [DOI: 10.1007/s11670-004-0014-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
|
21
|
Abstract
Merkel cell carcinoma (MCC) is a rare and aggressive primary neuroendocrine carcinoma of the skin. Large tumours, in particular, show rapid progression and metastatic dissemination, while smaller tumours show less aggressive behaviour. Cyclin A is considered to play a central role in cell cycle control. Its overexpression has been found to correlate with prognosis in many types of carcinomas and sarcomas. Twenty-six MCC patients with complete clinical data were selected. Formalin-fixed paraffin-embedded primary tumour samples were immunohistochemically stained for cyclin A. Correlation between expression of cyclin A and primary tumour size, invasion of subcutaneous tissue, local recurrence, metastasis and survival was statistically analysed. Twenty-five samples expressed cyclin A, and the mean value of positive cells was 25%. Our findings demonstrate that even small and superficial MCC show overexpression of cyclin A. There was no statistical correlation between cyclin A expression and the above-mentioned variables. Cyclin A does not seem to be useful as a prognostic tool. Consequently, size of the primary tumour (>/=2 cm) remains the primary prognostic tool. As a result every tumour, even those small in size, should be considered aggressive and treated radically and rapidly.
Collapse
Affiliation(s)
- Virve Koljonen
- Department of Plastic Surgery, Helsinki University Hospital, Helsinki, Finland.
| | | | | | | |
Collapse
|
22
|
Oda Y, Takahira T, Kawaguchi K, Yamamoto H, Tamiya S, Matsuda S, Tanaka K, Kinukawa N, Iwamoto Y, Tsuneyoshi M. Altered expression of cell cycle regulators in myxofibrosarcoma, with special emphasis on their prognostic implications. Hum Pathol 2003; 34:1035-42. [PMID: 14608538 DOI: 10.1053/s0046-8177(03)00404-0] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Myxofibrosarcoma/myxoid malignant fibrous histiocytoma (MFH) has continued to be considered a distinct entity even after recently published reassessments of pleomorphic sarcomas and MFH. Several cell cycle-regulated proteins have already been screened by immunohistochemistry with the aim of finding the reliable prognostic indicator of soft tissue sarcomas; however, it is still unknown whether their altered expression affects patient survival in myxofibrosarcoma. In this study, we evaluated the expression of p53, MDM2, MIB-1 (Ki-67), p21, p27, p16, cyclin A, cyclin D1, and cyclin E by immunohistochemistry in 45 cases of myxofibrosarcoma. First, we searched for possible clinicopathologic prognostic factors in 61 cases of myxofibrosarcoma for which follow-up data were available. In univariate analysis, large tumor size (> or =5 cm), deeply situated tumor, and high histological grade (grade 2 or 3) significantly decreased survival (log-rank test, P <0.05). Among 43 cases of myxofibrosarcoma for which immunohistochemical findings were available, high MIB-1 labeling index (LI) (cutoffs of 10 and 22.5 on average), high cyclin A LI (cutoffs 10% and 13.8% on average), low p21 LI (cutoffs 10 and 20.7 on average), and reduced abnormal expression of p16 were adverse prognostic factors. In multivariate analysis (Cox proportional hazards model), high mitotic rate (>15/10 high-power fields), p53 immunoreactivity (cutoff 10%), high MIB-1 LI (>22.5), low p21 LI (<20.7), and low p27 LI (<47.8 on average) were independent poor prognostic factors. Our results suggest that reduced expression of p21 could be considered a new parameter to be evaluated, along with classical clinicopathologic prognostic factors, for identifying those at high risk for myxofibrosarcoma.
Collapse
Affiliation(s)
- Yoshinao Oda
- Department of Anatomic Pathology, Graduate School of Medical Information Science, Kyushu University, Fukuoka, Japan
| | | | | | | | | | | | | | | | | | | |
Collapse
|
23
|
Handra-Luca A, Bilal H, Bertrand JC, Fouret P. Extra-cellular signal-regulated ERK-1/ERK-2 pathway activation in human salivary gland mucoepidermoid carcinoma: association to aggressive tumor behavior and tumor cell proliferation. THE AMERICAN JOURNAL OF PATHOLOGY 2003; 163:957-67. [PMID: 12937136 PMCID: PMC1868241 DOI: 10.1016/s0002-9440(10)63455-4] [Citation(s) in RCA: 68] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Information on oncogenetic events accompanying salivary gland mucoepidermoid carcinoma is so far limited. Activation of extracellular signal-regulated kinases ERK-1 and ERK-2 is strongly correlated to cancer. Using an antibody specific for phosphorylated (active) ERK-1/ERK-2, we examined human salivary gland mucoepidermoid carcinoma samples by immunohistochemistry. The comparison in paired tumor and normal tissue samples showed that phosphorylated ERK-1/ERK-2 immunoreactivity was higher in tumor cells as compared to surrounding normal salivary parenchyma. ERK-1/ERK-2 phosphorylation was observed in approximately 39% of mucoepidermoid carcinomas. Those tumors where the ERK-1/ERK-2 pathway was activated had a more aggressive tumor behavior as compared to the group where this pathway was inactive. The association of ERK-1/ERK-2 phosphorylation to a worse prognosis was independent of histological grade. ERK-1/ERK-2 phosphorylation was associated with increased Ki67 and cyclin A indexes, which indicated that ERK-1/ERK-2 pathway activation increased tumor cell proliferation. There was no relationship between ERK-1/ERK-2 phosphorylation and HER-2/neu or p16/INK4a protein expression. In conclusion, ERK-1/ERK-2 pathway is active in salivary gland mucoepidermoid carcinoma and this activation is associated to a more aggressive tumor behavior and a higher proliferative activity. These data suggest that deregulation of ERK-1/ERK-2 pathway contributes to mucoepidermoid carcinoma phenotype and, possibly, represents a target for new anticancer drugs.
Collapse
Affiliation(s)
- Adriana Handra-Luca
- Service d'Anatomie et de Cytologie Pathologiques, Groupe Hospitalier Pitié-Salpêtrière, Assistance Publique-Hôpitaux de Paris, 83 Boulevard de l'Hôpital, 75634 Paris Cedex 13, France
| | | | | | | |
Collapse
|
24
|
Dobashi Y, Jiang SX, Shoji M, Morinaga S, Kameya T. Diversity in expression and prognostic significance of G1/S cyclins in human primary lung carcinomas. J Pathol 2003; 199:208-20. [PMID: 12533834 DOI: 10.1002/path.1247] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Expression of cyclin A, cyclin E and cdk2 was examined immunohistochemically in 144 cases of primary non-small cell lung carcinoma to evaluate their prognostic value. Cyclin A was co-expressed with cdk2 in the proliferating cells, ie those showing positive Ki-67 staining. The labelling index (LI) of cyclin A revealed a positive correlation with the S-phase fraction and an inverse correlation with histological differentiation. Furthermore, high cyclin A LIs indicated a poor prognosis in all histological types. Cyclin E exhibited a characteristic staining pattern: in squamous cell carcinoma (SCC), differentiated cells without Ki-67 staining revealed cyclin E positivity with expression of cdk2. Conversely, in adenocarcinoma (AC), proliferating cells revealed cyclin E positivity. Cases of large cell carcinoma showed heterogeneous cyclin E staining patterns, unlike those of SCC or AC. Statistical analyses also revealed a marked contrast between SCC and AC. In AC, the LI of cyclin E was inversely correlated with histological differentiation and a high LI predicted a worse prognosis. In contrast, in SCC, the LI of cyclin E correlated positively with histological differentiation and better prognosis. However, the expression levels of cyclin E mRNA evaluated by quantitative RT-PCR were higher in poorly differentiated SCC and AC, suggesting that protein turnover plays a large role in determining cyclin E protein levels. Although the expression of cyclins was demonstrated to be diversely regulated depending on the histological type, the combined immunohistochemical analyses performed in this study on these proteins could be useful tools for evaluating patient prognosis in lung carcinomas.
Collapse
Affiliation(s)
- Yoh Dobashi
- Department of Pathology, Kitasato University School of Medicine, Kanagawa, Japan.
| | | | | | | | | |
Collapse
|
25
|
Nikitakis NG, Lopes MA, Bailey JS, Blanchaert RH, Ord RA, Sauk JJ. Oral leiomyosarcoma: review of the literature and report of two cases with assessment of the prognostic and diagnostic significance of immunohistochemical and molecular markers. Oral Oncol 2002; 38:201-8. [PMID: 11854069 DOI: 10.1016/s1368-8375(01)00047-1] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Leiomyosarcoma of the oral cavity is a very rare tumor that is associated with aggressive clinical behavior and low survival. In this paper, we report two new cases of leiomyosarcoma affecting the mandibular gingiva and mandible of a 35-year-old male and the mandible of a 51-year-old female. Given the difficulty in the histopathologic discrimination between benign and malignant smooth muscle tumors and the absence of reliable histologic parameters for prognostication of leiomyosarcomas, we evaluated the diagnostic and prognostic value of various immunohistochemical and molecular markers. By means of immunohistochemistry and quantitative real-time PCR analysis, we detected protein expression of PCNA, bcl-2, CDK4, p53 and MDM2 in both our cases and MDM2 amplification in our second case. The literature, pertinent to oral leiomyosarcoma and to molecular analysis of smooth muscle tumors, is reviewed.
Collapse
Affiliation(s)
- Nikolaos G Nikitakis
- Department of Oral and Maxillofacial Pathology, Dental School, University of Maryland, Baltimore 666 W. Baltimore Street, Room 4-C-02, Baltimore, MD 21201-1586, USA.
| | | | | | | | | | | |
Collapse
|
26
|
Miracco C, de Santi MM, Pacenti L, Schürfeld K, Laurini L, Pirtoli L, Luzi P, Ninfo V. Telomerase activity, Ki-67, cyclin D1 and A expression, and apoptosis in solitary fibrous tumors: additional features of a predictable course? Pathol Res Pract 2002; 197:475-81. [PMID: 11482577 DOI: 10.1078/0344-0338-00114] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Solitary fibrous tumors (SFTs) are infrequent soft tissue neoplasms which are usually benign and surgically curable. However, their behavior is not always predictable, although several clinical and pathological criteria of malignancy have been established. In many cancers, including some soft tissue tumors, telomerase activity (TA) has been shown to be a new reliable pathological marker of malignancy. Overexpression of some cyclins is associated with higher degrees of malignancy and predictive of the clinical course. In this study, we evaluated TA, mitotic and apoptotic indices (MI, AI), and the expression of Ki-67, cyclins D1 and A in five typical and two clinicopathologically atypical SFTs, the latter two of which had also recurred. High TA was demonstrated in the two atypical cases, which also showed a higher labeling index to Ki-67, as well as higher cyclin D1 and A expression, and either none or very few apoptoses. We suggest that TA, Ki-67, cyclin expression, and AI be evaluated in SFTs as possible adjunctive pathological criteria of behavior.
Collapse
Affiliation(s)
- C Miracco
- Institute of Pathological Anatomy and Histology, University of Siena, Italy.
| | | | | | | | | | | | | | | |
Collapse
|
27
|
Dobashi Y, Noguchi T, Nasuno S, Katayama K, Kameya T. CDK-inhibitors-associated kinase activity: a possible determinant of malignant potential in smooth muscle tumors of the external soft tissue. Int J Cancer 2001; 94:353-62. [PMID: 11745414 DOI: 10.1002/ijc.1479] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
There has been accumulating histological observation of leiomyoma and leiomyosarcoma of the external soft tissue regarding their differential diagnosis. The definitive diagnostic tools have not been established, however, nor have the pathological mechanisms of cell proliferation in these tumors been clarified. Herein, expression of the cyclin-dependent kinase inhibitors (CKIs), p21, p27 and p57 and their associated kinase activities were examined in 61 cases of soft tissue smooth muscle tumors. Immunohistochemical staining showed that all 3 inhibitor proteins were expressed in all cases of leiomyoma and leiomyosarcoma, but that the mean values of their labeling indices (LIs) were higher in the cases of leiomyosarcoma. In addition, the LIs of p21 and p27 were inversely correlated in total cases. Immunoblotting revealed that these proteins are expressed at higher levels in tumors, in particular, in leiomyosarcoma. When CKIs were immunoprecipitated from tissue extracts, cyclin/cdk protein complexes associated with, at least, 1 CKI were detectable only in tumor tissues. Furthermore, cdk2 or cdk4 kinase activity manifested by these cyclin/cdk/CKI complexes (CKI-associated kinase activity) was detectable exclusively from leiomyosarcoma, but not from leiomyoma. Among the cases of leiomyosarcoma, cdk2 activity was generally found associated either with p21 or p27, but not both. Statistical analysis indicated that p21- and p27 LIs are predictive of positive or negative clinical outcome, respectively. In conclusion, the participation of CKIs in active cyclin/cdk complexes in a reciprocal and redundant manner and subsequent CKI- associated kinase activity are the characteristic profiles of malignant phenotype in these tumors. Moreover, immunohistochemical detection of CKIs may provide a useful tool for evaluating patients' prognosis.
Collapse
Affiliation(s)
- Y Dobashi
- Department of Pathology, Kitasato University School of Medicine, Kanagawa, Japan.
| | | | | | | | | |
Collapse
|