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Hawkins Bressler L, Fritz MA, Wu SP, Yuan L, Kafer S, Wang T, DeMayo FJ, Young SL. Poor Endometrial Proliferation After Clomiphene is Associated With Altered Estrogen Action. J Clin Endocrinol Metab 2021; 106:2547-2565. [PMID: 34058008 PMCID: PMC8372647 DOI: 10.1210/clinem/dgab381] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/13/2021] [Indexed: 12/25/2022]
Abstract
CONTEXT Suboptimal endometrial thickening is associated with lower pregnancy rates and occurs in some infertile women treated with clomiphene. OBJECTIVE To examine cellular and molecular differences in the endometrium of women with suboptimal vs optimal endometrial thickening following clomiphene. METHODS Translational prospective cohort study from 2018 to 2020 at a university-affiliated clinic. Reproductive age women with unexplained infertility treated with 100 mg of clomiphene on cycle days 3 to 7 who developed optimal (≥8mm; n = 6, controls) or suboptimal (<6mm; n = 7, subjects) endometrial thickness underwent preovulatory blood and endometrial sampling. The main outcome measures were endometrial tissue architecture, abundance and location of specific proteins, RNA expression, and estrogen receptor (ER) α binding. RESULTS The endometrium of suboptimal subjects compared with optimal controls was characterized by a reduced volume of glandular epithelium (16% vs 24%, P = .01), decreased immunostaining of markers of proliferation (PCNA, ki67) and angiogenesis (PECAM-1), increased immunostaining of pan-leukocyte marker CD45 and ERβ, but decreased ERα immunostaining (all P < .05). RNA-seq identified 398 differentially expressed genes between groups. Pathway analysis of differentially expressed genes indicated reduced proliferation (Z-score = -2.2, P < .01), decreased angiogenesis (Z-score = -2.87, P < .001), increased inflammation (Z-score = +2.2, P < .01), and ERβ activation (Z-score = +1.6, P < .001) in suboptimal subjects. ChIP-seq identified 6 genes bound by ERα that were differentially expressed between groups (P < .01), some of which may play a role in implantation. CONCLUSION Women with suboptimal endometrial thickness after clomiphene exhibit aberrant ER expression patterns, architectural changes, and altered gene and protein expression suggesting reduced proliferation and angiogenesis in the setting of increased inflammation.
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Affiliation(s)
- Leah Hawkins Bressler
- Department of Obstetrics & Gynecology, Division of Reproductive Endocrinology & Infertility, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Marc A Fritz
- Department of Obstetrics & Gynecology, Division of Reproductive Endocrinology & Infertility, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - San-Pin Wu
- Reproductive and Developmental Biology Laboratory, National Institute of Environmental Health Sciences, Research Triangle Park, NC, USA
| | - Lingwen Yuan
- Reproductive and Developmental Biology Laboratory, National Institute of Environmental Health Sciences, Research Triangle Park, NC, USA
| | - Suzanna Kafer
- Reproductive and Developmental Biology Laboratory, National Institute of Environmental Health Sciences, Research Triangle Park, NC, USA
| | - Tianyuan Wang
- Integrative Bioinformatics Support Group, National Institute of Environmental Health Sciences, Research Triangle Park, NC, USA
| | - Francesco J DeMayo
- Reproductive and Developmental Biology Laboratory, National Institute of Environmental Health Sciences, Research Triangle Park, NC, USA
| | - Steven L Young
- Department of Obstetrics & Gynecology, Division of Reproductive Endocrinology & Infertility, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
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2
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Mei Y, Bi WL, Agolia J, Hu C, Giantini Larsen AM, Meredith DM, Al Abdulmohsen S, Bale T, Dunn GP, Abedalthagafi M, Dunn IF. Immune profiling of pituitary tumors reveals variations in immune infiltration and checkpoint molecule expression. Pituitary 2021; 24:359-373. [PMID: 33492612 DOI: 10.1007/s11102-020-01114-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 11/27/2020] [Indexed: 12/30/2022]
Abstract
PURPOSE Pituitary tumors are the second most common primary brain tumors. Functional tumors demonstrate increased PD-L1 expression, but expression of other checkpoint regulators has not been characterized. We sought to characterize the immune microenvironment of human pituitary tumors to identify new treatment opportunities. METHODS 72 pituitary tumors were evaluated for expression of the immune regulatory markers programmed death ligand 1 (PD-L1), programmed death ligand 2 (PD-L2), V-domain Ig suppressor of T cell activation (VISTA), lymphocyte activation gene 3 (LAG3) and tumor necrosis factor receptor superfamily member 4 (OX40) by immunohistochemistry (IHC). Lymphocyte infiltration, macrophage infiltration, and angiogenesis were analyzed using IHC. Expression of pituitary tumor initiating cell marker CD15 and mismatch repair proteins MutS protein homolog 2 (MSH2) and MutS protein homolog 6 (MSH6) was also assessed. RESULTS Pituitary tumors were infiltrated by macrophages and T cells, and they expressed varying levels of PD-L1, PD-L2, VISTA, LAG3, and OX40. Functional tumors and tumors with high expression of tumor stem cell markers had higher immune cell infiltration and greater expression of immunosuppressive checkpoint regulators. Increased PD-L1 and LAG3 and reduced VISTA were observed in primary tumors compared to recurrent tumors. CONCLUSION Immune cell infiltration and checkpoint regulator expression vary depending on functional status and presence of pituitary tumor initiating cells. Functional tumors may have a particularly immunosuppressive microenvironment. Further studies of immune checkpoint blockade of pituitary tumors, particularly functional tumors, are warranted, though combination therapy may be required.
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Affiliation(s)
- Yu Mei
- Center for Skull Base and Pituitary Surgery, Department of Neurosurgery, Harvard Medical School, Brigham and Women's Hospital, 60 Fenwood Road, Boston, MA, 02115, USA
| | - Wenya Linda Bi
- Center for Skull Base and Pituitary Surgery, Department of Neurosurgery, Harvard Medical School, Brigham and Women's Hospital, 60 Fenwood Road, Boston, MA, 02115, USA.
- Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, USA.
| | - James Agolia
- Center for Skull Base and Pituitary Surgery, Department of Neurosurgery, Harvard Medical School, Brigham and Women's Hospital, 60 Fenwood Road, Boston, MA, 02115, USA
| | - Changchen Hu
- Center for Skull Base and Pituitary Surgery, Department of Neurosurgery, Harvard Medical School, Brigham and Women's Hospital, 60 Fenwood Road, Boston, MA, 02115, USA
- Department of Neurosurgery, Shanxi Provincial People's Hospital, Shanxi Medical University, Taiyuan, China
| | | | - David M Meredith
- Department of Pathology, Harvard Medical School, Brigham and Women's Hospital, Boston, MA, USA
| | - Sally Al Abdulmohsen
- Center for Skull Base and Pituitary Surgery, Department of Neurosurgery, Harvard Medical School, Brigham and Women's Hospital, 60 Fenwood Road, Boston, MA, 02115, USA
- King Fahad Medical City and King Abdulaziz City for Science and Technology, Riyadh, Saudi Arabia
| | - Tejus Bale
- Department of Neuropathology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Gavin P Dunn
- Department of Neurosurgery, Washington University School of Medicine, St. Louis, MO, USA
- Andrew M. and Jane M. Bursky Center for Human Immunology and Immunotherapy Programs, Washington University School of Medicine, St. Louis, MO, USA
| | - Malak Abedalthagafi
- King Fahad Medical City and King Abdulaziz City for Science and Technology, Riyadh, Saudi Arabia
| | - Ian F Dunn
- Department of Neurosurgery, University of Oklahoma Health Sciences Center, HHDC Suite 4000, 1000 N. Lincoln Blvd, Oklahoma City, OK, 73104, USA.
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Lucas CHG, Grenert JP, Horvai A. Targeted Next-Generation Sequencing Identifies Molecular and Genetic Events in Dedifferentiated Chondrosarcoma. Arch Pathol Lab Med 2020; 145:1009-1017. [PMID: 33147331 DOI: 10.5858/arpa.2020-0379-oa] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/02/2020] [Indexed: 11/06/2022]
Abstract
CONTEXT.— Dedifferentiated chondrosarcoma is a rare adult bone tumor with a dismal prognosis and is composed of a conventional chondrosarcoma juxtaposed to high-grade nonchondrogenic sarcoma. Dedifferentiated chondrosarcomas may represent tumor progression from a differentiated to a primitive histotype. OBJECTIVE.— To determine the genetic and molecular events that drive progression from a conventional chondrosarcoma to high grade nonchondrogenic sarcoma. DESIGN.— We analyzed the genomic landscape of paired conventional and dedifferentiated components of 11 dedifferentiated chondrosarcoma using targeted next-generation DNA sequencing with immunohistochemical validation. Clinical, radiographic, and pathologic features of tumors were reviewed. Capture-based DNA sequencing targeting the coding regions of 479 cancer genes and select introns was performed. RESULTS.— The tumors arose in the femur (n = 4; 36%), scapula (n = 3; 27%), pelvis (n = 3; 27%), and humerus (n = 1; 9%) of 7 men (64%) and 4 women (36%; median age, 61 years). DNA was adequate for sequencing from all 11 dedifferentiated components (100%) and 9 paired conventional chondrosarcoma components (82%). All tumors (100%) harbored either IDH1 p.R132 or IDH2 p.R172S hotspot mutations. Seven tumors (64%) displayed COL2A1 alterations. TERT promoter mutations were present in 5 of 9 pairs (56%) and 2 (22%) additional unpaired dedifferentiated components. IDH1/2, COL2A1, and TERT mutations were identical in both components of the paired samples. Pathogenic missense or truncating mutations in TP53 and large-scale copy number alterations were more common in dedifferentiated components than in those of matched conventional components. CONCLUSIONS.— The results support IDH1/2, COL2A1, and TERT promoter mutations being common in dedifferentiated chondrosarcoma and as likely early events in progression, whereas inactivating mutation of TP53 and high-level copy number alterations may be later events in the dedifferentiated phenotype.
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Affiliation(s)
| | - James P Grenert
- From the Department of Pathology (Lucas, Grenert, Horvai).,the Clinical Cancer Genomics Laboratory (Grenert), University of California, San Francisco, San Francisco
| | - Andrew Horvai
- From the Department of Pathology (Lucas, Grenert, Horvai)
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4
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Prognostic Significance of RAS Mutations and P53 Expression in Cutaneous Squamous Cell Carcinomas. Genes (Basel) 2020; 11:genes11070751. [PMID: 32640663 PMCID: PMC7397334 DOI: 10.3390/genes11070751] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Revised: 06/24/2020] [Accepted: 06/30/2020] [Indexed: 12/12/2022] Open
Abstract
TP53 is considered the most commonly-altered gene in cutaneous squamous cell carcinoma (cSCC). Conversely, RAS mutations have been reported in a low percentage of cSCC. The objective of our study was to evaluate the frequency of p53 expression and RAS mutations in cSCC and correlate them with clinicopathological features and patient outcome. We performed immunohistochemistry for p53 and genetic profiling for RAS mutations in a retrospective series of cSCC. The predictive value of p53 expression, RAS mutations, and clinicopathological parameters was assessed using logistic regression models. The overall frequency of RAS mutations was 9.3% (15/162), and 82.1% of the cases (133/162) had p53 overexpression. RAS mutations rate was 3.2% (1/31) of in situ cSCCs and 10.7% (14/131) of invasive cSCCs. RAS mutations were more frequently associated with an infiltrative than an expansive pattern of invasion (p = 0.046). p53 overexpression was a predictor of recurrence in the univariate analysis. Our results indicate that RAS mutations associate with features of local aggressiveness. Larger studies with more recurrent and metastatic cSCCs are necessary to further address the prognostic significance of p53 overexpression in patients’ risk stratification.
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5
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Huang M, Jin J, Zhang F, Wu Y, Xu C, Ying L, Su D. Non-disruptive mutation in TP53 DNA-binding domain is a beneficial factor of esophageal squamous cell carcinoma. ANNALS OF TRANSLATIONAL MEDICINE 2020; 8:316. [PMID: 32355760 PMCID: PMC7186752 DOI: 10.21037/atm.2020.02.142] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Background TP53 is frequently altered in esophageal squamous cell carcinoma (ESCC). However, the landscape of TP53 mutation and its effects on patients remain controversial. Methods Somatic mutations of TP53 in 161 patients with resectable ESCC were identified by next-generation sequencing (NGS) and verified by immunohistochemistry (IHC). Patients were stratified into seven TP53 mutations, and depending on the extent of the effect on the encoded protein, it was divided into "disruptive" and "non-disruptive" types. The association of TP53 mutation with clinicopathological properties and disease outcome was investigated. Results TP53 mutations were discovered in 85.7% patients, of which 68.9% carried mutations in the DNA-binding domain (DBD). A total of 47.8% and 37.9% patients had disruptive and non-disruptive TP53 mutations, respectively. Most patients carried only one TP53 mutation, but 15.5% had double mutations. TP53 mutations were dominant in exons 5 to 8. Missense mutation was the most frequent (97/163, 59.5%), and the top five frequently occurring variations included R273X, Y220X, H193, H179X, and R175H. Multivariable analysis revealed non-disruptive mutation in TP53 DBD as the independent prognostic predictor for progression-free survival (PFS) and overall survival (OS). The expression of p53 positively correlated with non-disruptive mutation in DBD. Patients with high p53 protein expression showed better outcomes. Conclusions Non-disruptive mutation in TP53 DBD serves as an independent beneficial prognostic factor of prolonged survival in resectable ESCC.
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Affiliation(s)
- Minran Huang
- Department of Oncology, The Second Clinical Medical College of Zhejiang Chinese Medical University, Hangzhou 310053, China.,Institute of Cancer and Basic Medical (ICBM), Chinese Academy of Sciences, Hangzhou 310022, China.,Department of Pathology, Cancer Hospital of the University of Chinese Academy of Sciences, Hangzhou 310022, China.,Department of Pathology, Zhejiang Cancer Hospital, Hangzhou 310022, China
| | - Jiaoyue Jin
- Institute of Cancer and Basic Medical (ICBM), Chinese Academy of Sciences, Hangzhou 310022, China.,Department of Pathology, Cancer Hospital of the University of Chinese Academy of Sciences, Hangzhou 310022, China.,Department of Pathology, Zhejiang Cancer Hospital, Hangzhou 310022, China
| | - Fanrong Zhang
- Institute of Cancer and Basic Medical (ICBM), Chinese Academy of Sciences, Hangzhou 310022, China.,Department of Breast Surgery, Cancer Hospital of the University of Chinese Academy of Sciences, Hangzhou 310022, China.,Department of Breast Surgery, Zhejiang Cancer Hospital, Hangzhou 310022, China
| | - Yingxue Wu
- Institute of Cancer and Basic Medical (ICBM), Chinese Academy of Sciences, Hangzhou 310022, China.,Department of Pathology, Cancer Hospital of the University of Chinese Academy of Sciences, Hangzhou 310022, China.,Department of Pathology, Zhejiang Cancer Hospital, Hangzhou 310022, China
| | - Chenyang Xu
- Institute of Cancer and Basic Medical (ICBM), Chinese Academy of Sciences, Hangzhou 310022, China.,Department of Pathology, Cancer Hospital of the University of Chinese Academy of Sciences, Hangzhou 310022, China.,Department of Pathology, Zhejiang Cancer Hospital, Hangzhou 310022, China
| | - Lisha Ying
- Institute of Cancer and Basic Medical (ICBM), Chinese Academy of Sciences, Hangzhou 310022, China.,Cancer Hospital of University of Chinese Academy of Sciences, 310022, China
| | - Dan Su
- Institute of Cancer and Basic Medical (ICBM), Chinese Academy of Sciences, Hangzhou 310022, China.,Department of Pathology, Cancer Hospital of the University of Chinese Academy of Sciences, Hangzhou 310022, China.,Department of Pathology, Zhejiang Cancer Hospital, Hangzhou 310022, China
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6
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Williams LA, Hoadley KA, Nichols HB, Geradts J, Perou CM, Love MI, Olshan AF, Troester MA. Differences in race, molecular and tumor characteristics among women diagnosed with invasive ductal and lobular breast carcinomas. Cancer Causes Control 2019; 30:31-39. [PMID: 30617775 PMCID: PMC6396692 DOI: 10.1007/s10552-018-1121-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2018] [Accepted: 12/06/2018] [Indexed: 02/06/2023]
Abstract
BACKGROUND The dominant invasive breast cancer histologic subtype, ductal carcinoma, shows intrinsic subtype diversity. However, lobular breast cancers are predominantly Luminal A. Both histologic subtypes show distinct relationships with patient and tumor characteristics, but it is unclear if these associations remain after accounting for intrinsic subtype. METHODS Generalized linear models were used to estimate relative frequency differences (RFDs) and 95% confidence intervals (95% CIs) for the associations between age, race, tumor characteristics, immunohistochemistry (IHC) and RNA-based intrinsic subtype, TP53 status, and histologic subtype in the Carolina Breast Cancer Study (CBCS, n = 3,182) and The Cancer Genome Atlas (TCGA, n = 808). RESULTS Relative to ductal tumors, lobular tumors were significantly more likely to be Luminal A [CBCS RNA RFD: 44.9%, 95% CI (39.6, 50.1); TCGA: RFD: 50.5%, 95% CI (43.9, 57.1)], were less frequent among young (≤ 50 years) and black women, were larger in size, low grade, less frequently had TP53 pathway defects, and were diagnosed at later stages. These associations persisted among Luminal A tumors (n = 242). CONCLUSIONS While histology is strongly associated with molecular characteristics, histologic associations with age, race, size, grade, and stage persisted after restricting to Luminal A subtype. Histology may continue to be clinically relevant among Luminal A breast cancers.
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Affiliation(s)
- Lindsay A Williams
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, 135 Dauer Dr, Chapel Hill, NC, 27599, USA
| | - Katherine A Hoadley
- Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA
| | - Hazel B Nichols
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, 135 Dauer Dr, Chapel Hill, NC, 27599, USA
| | - Joseph Geradts
- Department of Population Sciences, City of Hope National Medical Center, Duarte, CA, 91010, USA
| | - Charles M Perou
- Department of Genetics, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA
| | - Michael I Love
- Department of Genetics, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA
- Department of Biostatistics, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA
| | - Andrew F Olshan
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, 135 Dauer Dr, Chapel Hill, NC, 27599, USA
| | - Melissa A Troester
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, 135 Dauer Dr, Chapel Hill, NC, 27599, USA.
- Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA.
- Department of Pathology and Laboratory Medicine, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA.
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7
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Isidori F, Malvi D, Fittipaldi S, Forcato C, Bozzarelli I, Sala C, Raulli G, D'Errico A, Fiorentino M, Seri M, Krishnadath KK, Bonora E, Mattioli S. Genomic profiles of primary and metastatic esophageal adenocarcinoma identified via digital sorting of pure cell populations: results from a case report. BMC Cancer 2018; 18:889. [PMID: 30208867 PMCID: PMC6134594 DOI: 10.1186/s12885-018-4789-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2017] [Accepted: 09/03/2018] [Indexed: 01/29/2023] Open
Abstract
Background We report on a female patient who underwent primary radical resection for a stage 2B Her-2-positive Barrett’s-type esophageal adenocarcinoma (EAC). Despite Her-2 targeted therapy, her disease recurred and required repeated metastectomies. Case presentation Digital cell sorting and targeted sequencing of cancer sub-clones from EAC and metastases revealed a completely mutated TP53, whereas the sorted stromal cells were wild-type. Her-2 amplification was significantly lower in the metastases when the patient became therapy-resistant. Conclusions The mechanism of therapy resistance illustrated by this case could only be detected through accurate analysis of tumor sub-populations. Investigating tumor sub-populations of recurrent disease is important for adjusting therapy in recurrent EAC. Electronic supplementary material The online version of this article (10.1186/s12885-018-4789-4) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Federica Isidori
- PhD program in Cardio-Nephro-Thoracic Sciences, University of Bologna, Bologna, Italy.,Unit of Medical Genetics, Department of Medical and Surgical Sciences (DIMEC), University of Bologna, Policlinico St. Orsola-Malpighi Hospital, Bologna, Italy
| | - Deborah Malvi
- Department of Experimental, Diagnostic and Specialty Medicine (DIMES), Institute of Oncology and Transplant Pathology, University of Bologna, Policlinico St. Orsola-Malpighi Hospital, Bologna, Italy
| | - Silvia Fittipaldi
- Department of Experimental, Diagnostic and Specialty Medicine (DIMES), Institute of Oncology and Transplant Pathology, University of Bologna, Policlinico St. Orsola-Malpighi Hospital, Bologna, Italy
| | | | - Isotta Bozzarelli
- PhD program in Cardio-Nephro-Thoracic Sciences, University of Bologna, Bologna, Italy.,Unit of Medical Genetics, Department of Medical and Surgical Sciences (DIMEC), University of Bologna, Policlinico St. Orsola-Malpighi Hospital, Bologna, Italy
| | - Claudia Sala
- Department of Physics and Astronomy, University of Bologna, Bologna, Italy
| | | | - Antonia D'Errico
- Department of Experimental, Diagnostic and Specialty Medicine (DIMES), Institute of Oncology and Transplant Pathology, University of Bologna, Policlinico St. Orsola-Malpighi Hospital, Bologna, Italy
| | - Michelangelo Fiorentino
- Department of Experimental, Diagnostic and Specialty Medicine (DIMES), Institute of Oncology and Transplant Pathology, University of Bologna, Policlinico St. Orsola-Malpighi Hospital, Bologna, Italy
| | - Marco Seri
- Unit of Medical Genetics, Department of Medical and Surgical Sciences (DIMEC), University of Bologna, Policlinico St. Orsola-Malpighi Hospital, Bologna, Italy
| | - Kausilia K Krishnadath
- Center for Experimental and Molecular Medicine, Academic Medical Center, Department of Gastroenterology and Hepatology, Amsterdam, The Netherlands
| | - Elena Bonora
- Unit of Medical Genetics, Department of Medical and Surgical Sciences (DIMEC), University of Bologna, Policlinico St. Orsola-Malpighi Hospital, Bologna, Italy. .,Department of Medical and Surgical Sciences (DIMEC) Alma Mater Studiorum, University of Bologna, Via G. Massarenti 9, 40138, Bologna, Italy.
| | - Sandro Mattioli
- PhD program in Cardio-Nephro-Thoracic Sciences, University of Bologna, Bologna, Italy.,Division of Thoracic Surgery, Department of Medical and Surgical Sciences, University of Bologna and Maria Cecilia Hospital, Cotignola, Italy
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8
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Williams LA, Butler EN, Sun X, Allott EH, Cohen SM, Fuller AM, Hoadley KA, Perou CM, Geradts J, Olshan AF, Troester MA. TP53 protein levels, RNA-based pathway assessment, and race among invasive breast cancer cases. NPJ Breast Cancer 2018; 4:13. [PMID: 29951581 PMCID: PMC6018637 DOI: 10.1038/s41523-018-0067-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2018] [Revised: 05/18/2018] [Accepted: 05/29/2018] [Indexed: 01/08/2023] Open
Abstract
Mutations in tumor suppressor TP53 have been inconsistently linked to breast cancer risk factors and survival. Immunohistochemistry (IHC) staining, a primary clinical means of TP53 mutation determination, only detects mutations that facilitate protein accumulation (e.g., missense mutations). RNA-based pathway methods capture functional status and may aid in understanding the role of TP53 function in racial disparities of breast cancer. TP53 status was assessed among invasive breast cancer cases from the Carolina Breast Cancer Study (CBCS) (2008–2013) using IHC and an established RNA-based TP53 signature (CBCS and The Cancer Genome Atlas (TCGA)). Frequency of TP53 status (IHC, RNA-based) was estimated in association with tumor characteristics, PAM50 intrinsic subtype, age, and race using relative frequency differences (RFDs) and 95% confidence intervals (95% CI) as the measure of association. Approximately 60% of basal-like tumors were TP53 protein positive (IHC), while nearly 100% were TP53 mutant-like (RNA). Luminal A tumors had low frequency of TP53 positivity (IHC: 7.9%) and mutant-like status (RNA: 1.7%). Mutant-like TP53 (RNA) was strongly associated with age ≤50 years, high tumor grade, advanced stage of disease, large tumor size, and basal-like and HER2 intrinsic subtypes. Black race was strongly associated with TP53 mutant-like status (RNA) (RFD: 24.8%, 95% CI: 20.5, 29.0) even after adjusting for age, grade, stage (RFD: 11.3%; 95% CI: 7.6, 15.0). Associations were attenuated and non-significant when measured by IHC. IHC-based TP53 status is an insensitive measurement of TP53 functional status. RNA-based methods suggest a role for TP53 in tumor prognostic features and racial disparities. RNA-based assays offer a more sensitive and clinically informative measure of mutations in the tumor suppressor TP53 among women with invasive breast cancer than do immunohistochemistry techniques that can only detect altered proteins. Using tumor samples from more than 1000 women enrolled in the Carolina Breast Cancer Study (CBCS), Melissa Troester from the University of North Carolina at Chapel Hill, USA, and coworkers assessed the functional status of TP53 via both classical immunohistochemistry methods and an RNA-based test of expression levels among 52 TP53-dependent genes. The results of the RNA analysis were strongly associated with younger age-of-onset, higher grade tumors, more advanced stage disease, larger tumor size, aggressive cancer subtypes and race—with more black women harboring TP53 mutant-like tumors than white women. By comparison, these associations were weaker or non-significant when using immunohistochemistry-based tests.
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Affiliation(s)
- Lindsay A Williams
- 1Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599 USA
| | - Ebonee N Butler
- 1Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599 USA
| | - Xuezheng Sun
- 1Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599 USA
| | - Emma H Allott
- 2Department of Nutrition, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599 USA
| | - Stephanie M Cohen
- 3Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599 USA
| | - Ashley M Fuller
- 4Department of Pathology and Laboratory Medicine, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599 USA
| | - Katherine A Hoadley
- 3Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599 USA.,5Department of Genetics, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599 USA
| | - Charles M Perou
- 5Department of Genetics, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599 USA
| | - Joseph Geradts
- 6Department of Pathology, Dana-Farber Cancer Institute, Boston, MA 02115 USA
| | - Andrew F Olshan
- 1Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599 USA
| | - Melissa A Troester
- 1Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599 USA.,3Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599 USA.,4Department of Pathology and Laboratory Medicine, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599 USA
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9
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Luo Y, Huang W, Zhang H, Liu G. Prognostic significance of CD117 expression and TP53 missense mutations in triple-negative breast cancer. Oncol Lett 2018; 15:6161-6170. [PMID: 29616097 PMCID: PMC5876428 DOI: 10.3892/ol.2018.8104] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2016] [Accepted: 11/24/2017] [Indexed: 12/15/2022] Open
Abstract
Triple-negative breast cancer (TNBC) is extremely aggressive and associated with poor prognosis. There are no known predictive or prognostic markers for TNBC. Inhibition of tumor protein P53 (TP53) has been demonstrated to increase the levels of cluster of differentiation 117 (CD117) in human colorectal cancer cells. However, the function of TP53 in the regulation of CD117 in TNBC has, to the best of our knowledge, not been reported. In the present study, the association between the expression of CD117 protein and TP53 mutations was investigated, and their prognostic value in patients with TNBC was assessed. A total of 58 TNBC and 48 non-TNBC breast cancer tissue samples were assessed for the expression of CD117, p53 and TP53 mutations. The marker of proliferation Ki-67 (MKI67) proliferation index and vascular invasion index (obtained by measuring D2-40 and CD34) was investigated via immunohistochemistry, and mutations in exons 4–8 of TP53 were measured using direct sequencing. Associations between CD117 and p53 levels or TP53 mutations and clinical parameters were statistically evaluated. The rates of CD117 or MKI67 positivity, CD117+/TP53 missense mutation+, TP53 missense mutations or recurrence were significantly higher in patients with TNBC than in patients with non-TNBC. In TNBC tissues, the presence of CD117 was associated with TP53 missense mutations (P=0.031), vascular invasion, recurrence and MKI67. CD117+/TP53 missense mutation+ also associated with vascular invasion, recurrence and MKI67. Under univariate analysis, MKI67, vascular invasion, CD117, CD117+/TP53 missense mutation+ and TP53 missense mutations were associated with the overall survival of patients with TNBC. Multivariate analysis revealed that vascular invasion and CD117+/TP53 missense mutation+ in primary tumors were independent prognostic factors in patients with TNBC. In conclusion, CD117+/TP53 missense mutation+ was associated with MKI67, vascular invasion and tumor recurrence in TNBC. The presence of CD117 and TP53 missense mutations together in the primary tumors was an independent prognostic factor for survival of patients with TNBC.
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Affiliation(s)
- Yanli Luo
- Department of Pathology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, P.R. China
| | - Wentao Huang
- Department of Pathology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, P.R. China
| | - Huizhen Zhang
- Department of Pathology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, P.R. China
| | - Guang Liu
- Department of Vascular Surgery, Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200011, P.R. China
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