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Sasaki K, Takahashi S, Ouchi K, Otsuki Y, Wakayama S, Ishioka C. Different impacts of TP53 mutations on cell cycle-related gene expression among cancer types. Sci Rep 2023; 13:4868. [PMID: 36964217 PMCID: PMC10039000 DOI: 10.1038/s41598-023-32092-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Accepted: 03/22/2023] [Indexed: 03/26/2023] Open
Abstract
Functional properties caused by TP53 mutations are involved in cancer development and progression. Although most of the mutations lose normal p53 functions, some of them, gain-of-function (GOF) mutations, exhibiting novel oncogenic functions. No reports have analyzed the impact of TP53 mutations on the gene expression profile of the p53 signaling pathway across cancer types. This study is a cross-cancer type analysis of the effects of TP53 mutations on gene expression. A hierarchical cluster analysis of the expression profile of the p53 signaling pathway classified 21 cancer types into two clusters (A1 and A2). Changes in the expression of cell cycle-related genes and MKI67 by TP53 mutations were greater in cluster A1 than in cluster A2. There was no distinct difference in the effects between GOF and non-GOF mutations on the gene expression profile of the p53 signaling pathway.
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Affiliation(s)
- Keiju Sasaki
- Department of Clinical Oncology, Graduate School of Medicine, Tohoku University, Sendai, Miyagi, Japan
- Department of Medical Oncology, Tohoku University Hospital, Sendai, Miyagi, Japan
| | - Shin Takahashi
- Department of Clinical Oncology, Graduate School of Medicine, Tohoku University, Sendai, Miyagi, Japan
| | - Kota Ouchi
- Department of Clinical Oncology, Graduate School of Medicine, Tohoku University, Sendai, Miyagi, Japan
- Department of Medical Oncology, Tohoku University Hospital, Sendai, Miyagi, Japan
| | - Yasufumi Otsuki
- Department of Clinical Oncology, Graduate School of Medicine, Tohoku University, Sendai, Miyagi, Japan
- Department of Medical Oncology, Tohoku University Hospital, Sendai, Miyagi, Japan
| | - Shonosuke Wakayama
- Department of Clinical Oncology, Graduate School of Medicine, Tohoku University, Sendai, Miyagi, Japan
- Department of Medical Oncology, Tohoku University Hospital, Sendai, Miyagi, Japan
| | - Chikashi Ishioka
- Department of Clinical Oncology, Graduate School of Medicine, Tohoku University, Sendai, Miyagi, Japan.
- Department of Medical Oncology, Tohoku University Hospital, Sendai, Miyagi, Japan.
- Department of Clinical Oncology, Institute of Development, Aging and Cancer, Tohoku University, Sendai, Miyagi, Japan.
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Veena MS, Wilken R, Zheng JY, Gholkar A, Venkatesan N, Vira D, Ahmed S, Basak SK, Dalgard CL, Ravichandran S, Batra RK, Kasahara N, Elashoff D, Fishbein MC, Whitelegge JP, Torres JZ, Wang MB, Srivatsan ES. p16 Protein and gigaxonin are associated with the ubiquitination of NFκB in cisplatin-induced senescence of cancer cells. J Biol Chem 2014; 289:34921-37. [PMID: 25331947 DOI: 10.1074/jbc.m114.568543] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
The molecular mechanism of p16-mediated senescence in cisplatin-treated cancer cells is not fully understood. Here we show that cisplatin treatment of head and neck cancer cells results in nuclear transport of p16 leading to a molecular modification of NFκB. Chromatin immunoprecipitation assays show that this modification is associated with the inhibition of NFκB interacting with its DNA binding sequences, leading to decreased expression of NFκB-transcribed proteins. LCMS proteomic analysis of LAP-TAP-purified proteins from HeLa cells containing a tetracycline-inducible GFP-S peptide-NFκB expression system identified gigaxonin, an ubiquitin E3 ligase adaptor, as an NFκB-interacting protein. Immunoblotting and siRNA studies confirmed the NFκB-gigaxonin interaction and the dependence of this binding on p16-NFκB binding. Using gel shift assays, we have confirmed p16-NFκB and gigaxonin-NFκB interactions. Furthermore, we have observed increased NFκB ubiquitination with cisplatin treatment that is abolished in the absence of p16 and gigaxonin expression. Analysis of 103 primary tumors has shown that increased nuclear p16 expression correlates with enhanced survival of head and neck cancer patients (p < 0.0000542), indicating the importance of nuclear p16 expression in prognosis. Finally, p16 expression is associated with reduced cytokine expression and the presence of human papilloma virus in chemoradiation-sensitive basaloid tumors. However, the absence of p16 expression is associated with enhanced cytokine expression and the absence of human papilloma virus in aggressive tumors. These results clearly demonstrate that nuclear p16 and gigaxonin play an important role in chemosensitivity of head and neck cancers through ubiquitination of NFκB.
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Affiliation(s)
- Mysore S Veena
- From the Department of Surgery, Veterans Affairs Greater Los Angeles Healthcare System/David Geffen School of Medicine at UCLA, Los Angeles, California 90073
| | - Reason Wilken
- From the Department of Surgery, Veterans Affairs Greater Los Angeles Healthcare System/David Geffen School of Medicine at UCLA, Los Angeles, California 90073
| | - Jun-Ying Zheng
- From the Department of Surgery, Veterans Affairs Greater Los Angeles Healthcare System/David Geffen School of Medicine at UCLA, Los Angeles, California 90073
| | - Ankur Gholkar
- Department of Chemistry and Biochemistry, UCLA, Los Angeles, California 90095
| | - Natarajan Venkatesan
- From the Department of Surgery, Veterans Affairs Greater Los Angeles Healthcare System/David Geffen School of Medicine at UCLA, Los Angeles, California 90073
| | - Darshni Vira
- From the Department of Surgery, Veterans Affairs Greater Los Angeles Healthcare System/David Geffen School of Medicine at UCLA, Los Angeles, California 90073, Department of Head and Neck Surgery, David Geffen School of Medicine at University of California Los Angeles, Los Angeles, California 90095
| | - Sameer Ahmed
- Department of Head and Neck Surgery, David Geffen School of Medicine at University of California Los Angeles, Los Angeles, California 90095
| | - Saroj K Basak
- From the Department of Surgery, Veterans Affairs Greater Los Angeles Healthcare System/David Geffen School of Medicine at UCLA, Los Angeles, California 90073
| | - Clifton L Dalgard
- Departments of Anatomy, Physiology, and Genetics, Uniformed Services University, Bethesda, Maryland 20814
| | - Sandhiya Ravichandran
- From the Department of Surgery, Veterans Affairs Greater Los Angeles Healthcare System/David Geffen School of Medicine at UCLA, Los Angeles, California 90073
| | - Raj K Batra
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Veterans Affairs Greater Los Angeles Healthcare System, Los Angeles, California 90073, Department of Medicine and Jonsson Comprehensive Cancer Center, UCLA, Los Angeles, California 90095
| | | | | | - Michael C Fishbein
- Pathology and Laboratory Medicine, David Geffen School of Medicine at University of California Los Angeles, Los Angeles, California
| | - Julian P Whitelegge
- Department of Psychiatry and Biobehavioral Sciences, UCLA, Los Angeles, California 90095, and
| | - Jorge Z Torres
- Department of Chemistry and Biochemistry, UCLA, Los Angeles, California 90095, Jonsson Comprehensive Cancer Center, UCLA, Los Angeles, California 90095
| | - Marilene B Wang
- From the Department of Surgery, Veterans Affairs Greater Los Angeles Healthcare System/David Geffen School of Medicine at UCLA, Los Angeles, California 90073, Department of Head and Neck Surgery, David Geffen School of Medicine at University of California Los Angeles, Los Angeles, California 90095, Jonsson Comprehensive Cancer Center, UCLA, Los Angeles, California 90095
| | - Eri S Srivatsan
- From the Department of Surgery, Veterans Affairs Greater Los Angeles Healthcare System/David Geffen School of Medicine at UCLA, Los Angeles, California 90073, Jonsson Comprehensive Cancer Center, UCLA, Los Angeles, California 90095
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3
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p27 and BCL2 expression predicts response to chemotherapy in head and neck squamous cell carcinomas. Oral Oncol 2014; 50:128-34. [DOI: 10.1016/j.oraloncology.2013.10.018] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2013] [Revised: 10/06/2013] [Accepted: 10/26/2013] [Indexed: 11/17/2022]
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Perrone F, Bossi P, Cortelazzi B, Locati L, Quattrone P, Pierotti MA, Pilotti S, Licitra L. TP53 Mutations and Pathologic Complete Response to Neoadjuvant Cisplatin and Fluorouracil Chemotherapy in Resected Oral Cavity Squamous Cell Carcinoma. J Clin Oncol 2010; 28:761-6. [DOI: 10.1200/jco.2009.22.4170] [Citation(s) in RCA: 90] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Purpose To find out if TP53 functional status predicts response to neoadjuvant chemotherapy and thus may be helpful during treatment decision making of oral cavity squamous cell carcinoma (SCC) patients. Patients and Methods We analyzed the predictive value of TP53 mutations and their functional status on the basis of the transactivation activity of p53 mutant proteins in 53 pretreatment biopsies of oral cavity SCC patients receiving primary cisplatin and fluorouracil chemotherapy followed by surgery. Results The surgical specimens showed that 15 patients (28%) achieved a pathologic complete remission (pCR) at both T and N sites, and 38 patients had residual tumor cells. Among the 53 pretreatment biopsies, 24 (45%) displayed TP53 mutations: 22 single-nucleotide substitutions and two deletions. According to functional status that could be determined only for the 22 substitutions, 21 mutations were nonfunctional and one was partially functional. TP53 mutation was found in four (27%) of 15 patients who achieved a pCR and in 20 (53%) of 38 nonresponder patients; the difference was not statistically significant (P = .12). In contrast, two (14%) of 14 cases with pCR carried a nonfunctional TP53 mutation, a frequency significantly less than that found in the nonresponders (19 [51%] of 37; P = .02). TP53 mutation predicted pCR in four (17%) of 24 patients and a nonfunctional mutation in only two (9%) of 22 patients. Conclusion The results indicate that the loss of function (transactivation activities) of p53 mutant proteins may predict a significant low pCR rate and suboptimal response to cisplatin-based neoadjuvant chemotherapy in patients with oral cavity SCC.
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Affiliation(s)
- Federica Perrone
- From the Unit of Experimental Molecular Pathology, Department of Pathology, and the Head and Neck Cancer Medical Oncology Unit, Fondazione Istituto Di Ricovero e Cura a Carattere Scientifico, Istituto Nazionale Tumori, Milan, Italy
| | - Paolo Bossi
- From the Unit of Experimental Molecular Pathology, Department of Pathology, and the Head and Neck Cancer Medical Oncology Unit, Fondazione Istituto Di Ricovero e Cura a Carattere Scientifico, Istituto Nazionale Tumori, Milan, Italy
| | - Barbara Cortelazzi
- From the Unit of Experimental Molecular Pathology, Department of Pathology, and the Head and Neck Cancer Medical Oncology Unit, Fondazione Istituto Di Ricovero e Cura a Carattere Scientifico, Istituto Nazionale Tumori, Milan, Italy
| | - Laura Locati
- From the Unit of Experimental Molecular Pathology, Department of Pathology, and the Head and Neck Cancer Medical Oncology Unit, Fondazione Istituto Di Ricovero e Cura a Carattere Scientifico, Istituto Nazionale Tumori, Milan, Italy
| | - Pasquale Quattrone
- From the Unit of Experimental Molecular Pathology, Department of Pathology, and the Head and Neck Cancer Medical Oncology Unit, Fondazione Istituto Di Ricovero e Cura a Carattere Scientifico, Istituto Nazionale Tumori, Milan, Italy
| | - Marco A. Pierotti
- From the Unit of Experimental Molecular Pathology, Department of Pathology, and the Head and Neck Cancer Medical Oncology Unit, Fondazione Istituto Di Ricovero e Cura a Carattere Scientifico, Istituto Nazionale Tumori, Milan, Italy
| | - Silvana Pilotti
- From the Unit of Experimental Molecular Pathology, Department of Pathology, and the Head and Neck Cancer Medical Oncology Unit, Fondazione Istituto Di Ricovero e Cura a Carattere Scientifico, Istituto Nazionale Tumori, Milan, Italy
| | - Lisa Licitra
- From the Unit of Experimental Molecular Pathology, Department of Pathology, and the Head and Neck Cancer Medical Oncology Unit, Fondazione Istituto Di Ricovero e Cura a Carattere Scientifico, Istituto Nazionale Tumori, Milan, Italy
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Yamasaki M, Miyata H, Fujiwara Y, Takiguchi S, Nakajima K, Nishida T, Yasuda T, Matsuyama J, Mori M, Doki Y. p53 genotype predicts response to chemotherapy in patients with squamous cell carcinoma of the esophagus. Ann Surg Oncol 2009; 17:634-42. [PMID: 19941080 DOI: 10.1245/s10434-009-0851-4] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2009] [Indexed: 11/18/2022]
Abstract
BACKGROUND Response to chemotherapy and anatomical spread are significant prognostic factors in patients with esophageal squamous cell carcinoma (ESCC) treated by chemotherapy then surgery. Predicting the response to chemotherapy would allow significant optimization of cancer treatment. METHODS Genomic mutation and protein expression of p53 were investigated retrospectively by polymerase chain reaction (PCR) single-strand conformation polymorphism (SSCP) and immunohistochemistry (IHC) using biopsy specimens from 77 ESCC patients before chemotherapy with 5-fluorouracil, adriamycin, and cisplatin. p53 status was correlated with various clinicopathological factors. Thereafter, we performed a prospective study of 20 consecutive patients to test our prediction model. RESULTS The retrospective study showed mutant p53 genotype and positive p53 IHC staining in 46.8 and 55.8% of patients, respectively, which was not associated with patient's clinicopathological findings including initial tumor stage. Objective response to chemotherapy was observed in 65.9% of patients with wild genotype, but in only 16.7% of patients with mutant genotype. Patients with mutations in p53 therefore showed significantly poorer prognosis than those without mutant p53. In contrast, p53 IHC staining did not correlate with response to chemotherapy, curative resection rate or prognosis. In the prospective study, p53 mutation was seen in 50% (10/20) of patients and was again consistently associated with poorer response to chemotherapy and poorer prognosis. CONCLUSIONS p53 genotype of pretreatment biopsy is a potentially useful predictor of response to chemotherapy and prognosis in ESCC patients. This information might be valuable to clinicians in deciding on the optimal clinical strategy in patients with ESCC.
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Affiliation(s)
- Makoto Yamasaki
- Departments of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan.
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Horn IS, Wichmann G, Mozet C, Dietz A, Dollner R, Tschöp K, Boehm A. Heterogeneity of epithelial and stromal cells of head and neck squamous cell carcinomas in ex vivo chemoresponse. Cancer Chemother Pharmacol 2009; 65:1153-63. [PMID: 19771432 DOI: 10.1007/s00280-009-1124-4] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2009] [Accepted: 09/02/2009] [Indexed: 11/28/2022]
Abstract
BACKGROUND Valid prediction of the effectiveness of chemotherapeutic agents in individual head and neck squamous cell carcinoma (HNSCC) is desirable and might be achieved using ex vivo assays. METHODS Three biopsies from each of 15 HNSCC were taken, minced and digested by collagenase. The digested HNSCC was added to serial dilutions of either cisplatin (CIS) or docetaxel (DTX), which were prepared under flavin-protecting conditions in ECM-coated microtiterplates. After 72-h incubation, cultures were methanol-fixed and Giemsa-stained. The cutoff concentration (COC; concentration completely suppressing colony formation) for epithelial cells (EC) and stromal cells (SC) was evaluated. RESULTS 12/15 HNSCC (80%) were evaluable. Despite significant correlation of COC of CIS in respect of colony formation of EC or SC, no significant differences in response of individual HNSCC specimens were found in the t test for paired samples (p > 0.16). The same applied to DTX. However, EC and SC showed heterogeneity in chemoresponses leading to COC variability of more than one titration step in 44.1% (CIS) and 20% of HNSCC (DTX). No significant correlation between the COC of both cell populations was found in HNSCC specimens. CONCLUSIONS The ex vivo chemoresponse of EC and SC of HNSCC must be analyzed separately.
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Affiliation(s)
- Iris-Susanne Horn
- Department of Otorhinolaryngology, Head and Neck Surgery, University Hospital Leipzig, Liebigstrasse 10-14, 04103, Leipzig, Germany
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van den Broek GB, Wildeman M, Rasch CRN, Armstrong N, Schuuring E, Begg AC, Looijenga LHJ, Scheper R, van der Wal JE, Menkema L, van Diest PJ, Balm AJM, van Velthuysen MLF, van den Brekel MWM. Molecular markers predict outcome in squamous cell carcinoma of the head and neck after concomitant cisplatin-based chemoradiation. Int J Cancer 2009; 124:2643-50. [PMID: 19253368 DOI: 10.1002/ijc.24254] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Not all patients with squamous cell carcinomas of the head and neck (HNSCC) benefit from concurrent cisplatin-based chemoradiation, but reliable predictive markers for outcome after chemoradiation are scarce. We have investigated potential prognostic biomarkers for outcome in a large group of patients. Ninety-one tumor biopsies taken from consecutive HNSCC patients were evaluated for protein expression on a tissue microarray. Using immunohistochemistry, 18 biomarkers, involved in various cellular pathways were investigated. Univariable and multivariable proportional hazard analyses were performed to investigate associations between each individual marker and outcome. In addition, the global test was used to test all variables simultaneously and selected combinations of markers for an overall association with local control. Univariable analysis showed statistically significant increased relative risks of RB, P16 and MRP2 for local control and MDR1 and HIF-1alpha for overall survival. MRP2, MDR1 and P16 levels were positively associated with outcome whereas RB and HIF-1alpha had a negative relationship. Using Goeman's global testing no combination of markers was identified that was associated with local control. Grouping the markers according to their function revealed an association between a combination of 3 markers (P16, P21 and P27) and outcome (p = 0.05) was found. In the multivariable analysis, MRP2 and RB remained significant independent predictive markers for local control. This study describes the prognostic value of biomarkers for the outcome in patients uniformly treated with concurrent chemoradiation. MRP2 and RB were found to be associated with outcome in patients treated with concurrent chemoradiation.
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Affiliation(s)
- Guido B van den Broek
- Department of Head and Neck Oncology and Surgery, The Netherlands Cancer Institute-Antoni van Leeuwenhoek Hospital, Amsterdam, The Netherlands.
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Partridge M, Costea D, Huang X. The changing face of p53 in head and neck cancer. Int J Oral Maxillofac Surg 2007; 36:1123-38. [DOI: 10.1016/j.ijom.2007.06.006] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2006] [Accepted: 06/29/2007] [Indexed: 02/04/2023]
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Lothaire P, de Azambuja E, Dequanter D, Lalami Y, Sotiriou C, Andry G, Castro G, Awada A. Molecular markers of head and neck squamous cell carcinoma: promising signs in need of prospective evaluation. Head Neck 2006; 28:256-69. [PMID: 16284973 DOI: 10.1002/hed.20326] [Citation(s) in RCA: 113] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
BACKGROUND The aim of this article is to review recent developments in the biological understanding of head and neck squamous cell carcinomas. METHODS AND RESULTS We describe the markers according to their function and their prognostic or predictive roles. Some associations can be found between molecular markers and invasiveness, aggressiveness, degree of differentiation, and tumor stage, but only a few clinical studies have shown an impact on prognosis. In addition, despite an increasing number of articles relating to this topic, the small number of patients included in the studies reported reduces the clinical implications of these results. Few studies applied a more comprehensive molecular analysis approach, such as DNA microarrays or differential expression profiling by polymerase chain reaction, to identify a combination of markers that could be more informative than a single molecular marker. CONCLUSION Some progress has been made with respect to molecular markers and head and neck cancers. Translational and prospective, hypothesis-driven research must proceed with sufficient rigor to facilitate the clinical applicability of such results.
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Vikhanskaya F, Siddique MM, Kei Lee M, Broggini M, Sabapathy K. Evaluation of the combined effect of p53 codon 72 polymorphism and hotspot mutations in response to anticancer drugs. Clin Cancer Res 2005; 11:4348-56. [PMID: 15958617 DOI: 10.1158/1078-0432.ccr-04-1547] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Mutations in p53 are common events during carcinogenesis and have been suggested to affect sensitivity to chemotherapy. Recently, the common polymorphism at codon 72, resulting in either an arginine (72R) or proline (72P) residue, was shown to differentially affect the response to anticancer drugs. Here, we have generated isogenic lung cancer cell lines to evaluate the effect of six p53 hotspot mutations (R175H, G245S, R248W, R249S, R273H, and R282W) in conjunction with the codon 72 polymorphism, for their response to a variety of anticancer drugs, either alone or in combination. The data indicate that 72R mutations do not confer general resistance to cisplatin, etoposide, gemcitabine, vinblastine, and taxol. For doxorubicin, cells expressing 249-72R were more resistant than the 249-72P cells. Combined treatment with cisplatin + etoposide resulted in an additive effect in cells expressing most 72R and 72P mutations, except for the 175-72R cells which were refractory to combined treatment. However, combined treatment with cisplatin + gemcitabine resulted in the absence of an additive effect in cells expressing the 273-72R and 282-72R mutants, unlike their 72P counterparts. Nonetheless, all p53 mutants (72R or 72P) equally inhibited p73-mediated transcriptional activity in lung cancer cells, suggesting that the selective resistance conferred by some 72R mutants to certain drugs is probably due to other p73-independent effects of these mutants. Together, the data show that the status of codon 72 polymorphism and p53 mutations can be used as a means for prediction of treatment response, although variables for each cancer type requires detailed evaluation.
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Affiliation(s)
- Faina Vikhanskaya
- Laboratory of Molecular Carcinogenesis, National Cancer Centre, Singapore, Department of Biochemistry, National University of Singapore, Singapore
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11
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Licitra L, Suardi S, Bossi P, Locati LD, Mariani L, Quattrone P, Lo Vullo S, Oggionni M, Olmi P, Cantù G, Pierotti MA, Pilotti S. Prediction of TP53 status for primary cisplatin, fluorouracil, and leucovorin chemotherapy in ethmoid sinus intestinal-type adenocarcinoma. J Clin Oncol 2005; 22:4901-6. [PMID: 15611505 DOI: 10.1200/jco.2004.05.071] [Citation(s) in RCA: 76] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
PURPOSE To assess the role of TP53 status in predicting pathologic complete remission after primary chemotherapy in patients with ethmoidal intestinal-type adenocarcinoma (ITAC). PATIENTS AND METHODS Thirty patients with ethmoidal ITAC enrolled onto a phase II study received chemotherapy with cisplatin, fluorouracil, and leucovorin (PFL) followed by surgery and radiation. On surgical specimens, absence of viable tumor cells was defined as pathologic complete remission (pCR). TP53 status/p53 function, analyzed on pretreatment biopsies, were retrospectively correlated with pathologic results and patient outcome. RESULTS Twelve patients achieved a pCR; 18 patients did not (overall response rate, 40%). In patients with wild-type (wt) TP53 or functional p53 protein, the pCRs were 83% and 80%, respectively; in patients with mutated TP53 or impaired p53 protein, pCRs were 11% and 0%, respectively (P < or = .0001). At a median 55-month follow-up, all pCR patients were disease-free; 44% of nonresponding patients experienced relapse (P = .0061). CONCLUSION The results indicate the existence of two genetic ITAC subgroups, defined by differences in TP53 mutational status or protein functionality, that strongly influence pathologic response to primary chemotherapy and, ultimately, prognosis. PFL seems to be highly effective in terms of pCR and disease-free survival in the presence of a wt or a still-efficient p53 protein, even when encoded by a mutated TP53 gene (eg, early-stop codon mutation), but ineffective in ITACs carrying a disabled p53 protein. Whether this model is extensible to other head and neck cancers needs appropriate investigation.
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Affiliation(s)
- L Licitra
- Medical Oncology Department, Head and Neck Unit, Istituto Nazionale Tumori, Via Venezian 1, 20133 Milan, Italy.
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12
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Lumb PD, Suvarna SK. Metastasis in pleural mesothelioma. Immunohistochemical markers for disseminated disease. Histopathology 2004; 44:345-52. [PMID: 15049900 DOI: 10.1111/j.1365-2559.2004.01844.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
AIMS To examine 13 cases of mesothelioma with metastases and compare these with 29 biopsy samples of patients without metastases. Metastatic disease was defined as tumour in which tumour appeared in a different cavity/tissue of the body and which showed no direct spread. Consequently, mediastinal nodal and parenchymal lung spread was excluded. METHODS AND RESULTS Standard sections were prepared and stained according to the manufacturers' protocols. The antibodies used were MIB-1, nm23, Bcl-2, MMP-9, EMMPRIN (CD147) and alpha-catenin. Scoring employed a grading system (0/1/2/3), and was performed by two pathologists independently. The tissues revealed no significant staining differences for MIB-1, Bcl-2, MMP-9 or EMMPRIN, and therefore no linkage to metastatic potential was determined. Alpha-Catenin showed a diminished level of expression in cases of metastatic mesothelioma (P = 0.024), possibly reflecting dimished catenin-cadherin binding and paralleling data from other tumours. nm23 showed greater staining in metastatic tumours when compared with the controls (P = 0.001). Intriguingly, the nm23 staining pattern was the reverse of that expected. This reversed pattern has been noted before in other tumours and therefore a biological prognostic event may exist for this antibody test and mesothelioma metastasis. CONCLUSION There may be a place for nm23 and possibly alpha-catenin in immunohistochemical assessment of mesothelioma metastatic potential. However, MIB-1, Bcl-2, MMP-9 and EMMPRIN (CD147) do not show significant staining results.
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Affiliation(s)
- P D Lumb
- Department of Forensic Pathology, University of Sheffield, The Northern General Hospital, Sheffield, UK
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13
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Bergamaschi D, Gasco M, Hiller L, Sullivan A, Syed N, Trigiante G, Yulug I, Merlano M, Numico G, Comino A, Attard M, Reelfs O, Gusterson B, Bell AK, Heath V, Tavassoli M, Farrell PJ, Smith P, Lu X, Crook T. p53 polymorphism influences response in cancer chemotherapy via modulation of p73-dependent apoptosis. Cancer Cell 2003; 3:387-402. [PMID: 12726864 DOI: 10.1016/s1535-6108(03)00079-5] [Citation(s) in RCA: 324] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Intact p73 function is shown to be an important determinant of cellular sensitivity to anticancer agents. Inhibition of p73 function by dominant-negative proteins or by mutant p53 abrogates apoptosis and cytotoxicity induced by these agents. A polymorphism encoding either arginine (72R) or proline (72P) at codon 72 of p53 influences inhibition of p73 by a range of p53 mutants identified in squamous cancers. Clinical response following cisplatin-based chemo-radiotherapy for advanced head and neck cancer is influenced by this polymorphism, cancers expressing 72R mutants having lower response rates than those expressing 72P mutants. Polymorphism in p53 may influence individual responsiveness to cancer therapy.
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Affiliation(s)
- Daniele Bergamaschi
- Ludwig Institute for Cancer Research, Imperial College Faculty of Medicine, St. Mary's Campus, London, England
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