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Russo G, Pepe F, Pisapia P, Palumbo L, Nacchio M, Vigliar E, Pallante P, Parente P, Fassan M, Graziano P, Bellevicine C, Troncone G, Malapelle U, Iaccarino A. Microsatellite instability evaluation of patients with solid tumour: routine practice insight from a large series of Italian referral centre. J Clin Pathol 2023; 76:133-136. [PMID: 35545354 DOI: 10.1136/jclinpath-2022-208203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Accepted: 04/13/2022] [Indexed: 01/24/2023]
Abstract
DNA mismatch repair complex is involved in the maintenance of DNA stability. In the recent years, a plethora of technical approaches for microsatellite instability (MSI) analysis emerged. Here, we review the results of our MSI status evaluation by adopting a customised workflow on microfluidic system obtained in 4 years of diagnostic routine practice. Data from MSI status were retrieved from our institutional archive covering the period from January 2017 to December 2021. Microfluidic analysis was carried out on microfluidic platform. Results were inspected with a proprietary software. Overall, microsatellite stability (MSS) and MSI-high (MSI-H) profile was detected in n=423/458 (92.36%) and n=35/458 (7.64%) patients with metastatic CRC (mCRC), respectively. In addition, n=78/86 (90.70%) and n=8/86 (9.30%) patients without CRC showed an MSS and MSI-H profile. This review highlights the suitability of microfluidic approach in patients with cancer for MSI testing.
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Affiliation(s)
- Gianluca Russo
- Public Health, University of Naples Federico II, Naples, Italy
| | - Francesco Pepe
- Public Health, University of Naples Federico II, Naples, Italy
| | | | - Lucia Palumbo
- Public Health, University of Naples Federico II, Naples, Italy
| | | | - Elena Vigliar
- Public Health, University of Naples Federico II, Naples, Italy
| | - Pierlorenzo Pallante
- Institute of Experimental Endocrinology and Oncology (IEOS) "G. Salvatore", National Research Council, Naples, Italy
| | - Paola Parente
- Unit of Pathology, Ospedale Casa Sollievo della Sofferenza, San Giovanni Rotondo, Italy
| | - Matteo Fassan
- Surgical Pathology Unit, Department of Medicine (DIMED), Padua University Hospital, Padua, Italy.,Veneto Institute of Oncology, IOV IRCCS, Padua, Italy
| | - Paolo Graziano
- Unit of Pathology, Ospedale Casa Sollievo della Sofferenza, San Giovanni Rotondo, Italy
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Owen S, Lo TW, Fouladdel S, Zeinali M, Keller E, Azizi E, Ramnath N, Nagrath S. Simultaneous Single Cell Gene Expression and EGFR Mutation Analysis of Circulating Tumor Cells Reveals Distinct Phenotypes in NSCLC. ADVANCED BIOSYSTEMS 2020; 4:e2000110. [PMID: 32700450 PMCID: PMC7883301 DOI: 10.1002/adbi.202000110] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Revised: 06/08/2020] [Indexed: 12/31/2022]
Abstract
While cancer cell populations are known to be highly heterogeneous within a tumor, the current gold standard of tumor profiling is through a tumor biopsy. These biopsies are invasive and prone to missing these clones due to spatial heterogeneity, and this bulk analysis approach can miss information from rare subpopulations. To noninvasively investigate tumor cell heterogeneity, a streamlined workflow is developed to scrutinize rare cells, such as circulating tumor cells (CTCs), for simultaneous analysis of mutations and gene expression profiles at the single cell level. This powerful workflow overcomes low-input limitations of single cell analysis techniques. The utility of this multiplexed workflow to unravel inter- and intra-patient heterogeneity is demonstrated using non-small-cell lung cancer (NSCLC) CTCs (n = 58) from six epidermal growth factor receptor (EGFR) mutant positive NSCLC patients. CTCs are isolated using a high-throughput microfluidic technology, the Labyrinth, and their EGFR mutation status and gene expression profiles are characterized.
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Affiliation(s)
- Sarah Owen
- Department of Chemical Engineering, North Campus Research Complex (NCRC) B028-G068W, 2800 Plymouth Road, Ann Arbor, MI, 48109, USA
- Biointerfaces Institute, North Campus Research Complex (NCRC) B010-A175, 2800 Plymouth Road, Ann Arbor, MI, 48109, USA
| | - Ting-Wen Lo
- Department of Chemical Engineering, North Campus Research Complex (NCRC) B028-G068W, 2800 Plymouth Road, Ann Arbor, MI, 48109, USA
- Biointerfaces Institute, North Campus Research Complex (NCRC) B010-A175, 2800 Plymouth Road, Ann Arbor, MI, 48109, USA
| | - Shamileh Fouladdel
- Biointerfaces Institute, North Campus Research Complex (NCRC) B010-A175, 2800 Plymouth Road, Ann Arbor, MI, 48109, USA
- Department of Internal Medicine, 1500 E. Medical Center Drive, Ann Arbor, Michigan, 48109-5330, USA
| | - Mina Zeinali
- Department of Chemical Engineering, North Campus Research Complex (NCRC) B028-G068W, 2800 Plymouth Road, Ann Arbor, MI, 48109, USA
- Biointerfaces Institute, North Campus Research Complex (NCRC) B010-A175, 2800 Plymouth Road, Ann Arbor, MI, 48109, USA
| | - Evan Keller
- Biointerfaces Institute, North Campus Research Complex (NCRC) B010-A175, 2800 Plymouth Road, Ann Arbor, MI, 48109, USA
- Rogel Cancer Center , 1500 East Medical Center Drive, CCGC 6-303, Ann Arbor, MI, 48109-0944, USA
- Department of Urology, A. Alfred Taubman Health Care Center, 1500 E. Medical Center Drive, Ann Arbor, Michigan, 48109-5330, USA
- Unit of Laboratory Animal Medicine, 2800 Plymouth Road, Ann Arbor, MI, 48109, USA
| | - Ebrahim Azizi
- Biointerfaces Institute, North Campus Research Complex (NCRC) B010-A175, 2800 Plymouth Road, Ann Arbor, MI, 48109, USA
- Department of Internal Medicine, 1500 E. Medical Center Drive, Ann Arbor, Michigan, 48109-5330, USA
| | - Nithya Ramnath
- Department of Internal Medicine, 1500 E. Medical Center Drive, Ann Arbor, Michigan, 48109-5330, USA
- Rogel Cancer Center , 1500 East Medical Center Drive, CCGC 6-303, Ann Arbor, MI, 48109-0944, USA
| | - Sunitha Nagrath
- Department of Chemical Engineering, North Campus Research Complex (NCRC) B028-G068W, 2800 Plymouth Road, Ann Arbor, MI, 48109, USA
- Biointerfaces Institute, North Campus Research Complex (NCRC) B010-A175, 2800 Plymouth Road, Ann Arbor, MI, 48109, USA
- Rogel Cancer Center , 1500 East Medical Center Drive, CCGC 6-303, Ann Arbor, MI, 48109-0944, USA
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Zito Marino F, Bianco R, Accardo M, Ronchi A, Cozzolino I, Morgillo F, Rossi G, Franco R. Molecular heterogeneity in lung cancer: from mechanisms of origin to clinical implications. Int J Med Sci 2019; 16:981-989. [PMID: 31341411 PMCID: PMC6643125 DOI: 10.7150/ijms.34739] [Citation(s) in RCA: 99] [Impact Index Per Article: 19.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/09/2019] [Accepted: 05/05/2019] [Indexed: 12/13/2022] Open
Abstract
Molecular heterogeneity is a frequent event in cancer responsible of several critical issues in diagnosis and treatment of oncologic patients. Lung tumours are characterized by high degree of molecular heterogeneity associated to different mechanisms of origin including genetic, epigenetic and non-genetic source. In this review, we provide an overview of recognized mechanisms underlying molecular heterogeneity in lung cancer, including epigenetic mechanisms, mutant allele specific imbalance, genomic instability, chromosomal aberrations, tumor mutational burden, somatic mutations. We focus on the role of spatial and temporal molecular heterogeneity involved in therapeutic implications in lung cancer patients.
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Affiliation(s)
| | - Roberto Bianco
- Department of Clinical Medicine and Surgery, Oncology Division, University of Naples Federico II, Naples, Italy
| | - Marina Accardo
- Pathology Unit, University of Campania “L. Vanvitelli”, Naples, Italy
| | - Andrea Ronchi
- Pathology Unit, University of Campania “L. Vanvitelli”, Naples, Italy
| | | | - Floriana Morgillo
- Medical Oncology, Department of Precision Medicine, University of Campania “L. Vanvitelli”, Naples, Italy
| | - Giulio Rossi
- Pathology Unit, Hospital S. Maria delle Croci, Azienda Romagna, Ravenna, Italy
| | - Renato Franco
- Pathology Unit, University of Campania “L. Vanvitelli”, Naples, Italy
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Syahruddin E, Wulandari L, Sri Muktiati N, Rima A, Soeroso N, Ermayanti S, Levi M, Hidajat H, Widjajahakim G, Utomo ARH. Uncommon EGFR mutations in cytological specimens of 1,874 newly diagnosed Indonesian lung cancer patients. LUNG CANCER-TARGETS AND THERAPY 2018; 9:25-34. [PMID: 29615847 PMCID: PMC5870662 DOI: 10.2147/lctt.s154116] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Purpose We aimed to evaluate the distribution of individual epidermal growth factor receptor (EGFR) mutation subtypes found in routine cytological specimens. Patients and methods A retrospective audit was performed on EGFR testing results of 1,874 consecutive cytological samples of newly diagnosed or treatment-naïve Indonesian lung cancer patients (years 2015–2016). Testing was performed by ISO15189 accredited central laboratory. Results Overall test failure rate was 5.1%, with the highest failure (7.1%) observed in pleural effusion and lowest (1.6%) in needle aspiration samples. EGFR mutation frequency was 44.4%. Tyrosine kinase inhibitor (TKI)-sensitive common EGFR mutations (ins/dels exon 19, L858R) and uncommon mutations (G719X, T790M, L861Q) contributed 57.1% and 29%, respectively. Approximately 13.9% of mutation-positive patients carried a mixture of common and uncommon mutations. Women had higher EGFR mutation rate (52.9%) vs men (39.1%; p<0.05). In contrast, uncommon mutations conferring either TKI responsive (G719X, L861Q) or TKI resistance (T790M, exon 20 insertions) were consistently more frequent in men than in women (67.3% vs 32.7% or 69.4% vs 30.6%; p<0.05). Up to 10% EGFR mutation–positive patients had baseline single mutation T790M, exon 20 insertion, or in coexistence with TKI-sensitive mutations. Up to 9% patients had complex or multiple EGFR mutations, whereby 48.7% patients harbored TKI-resistant mutations. One patient presented third-generation TKI-resistant mutation L792F simultaneously with T790M. Conclusion Routine diagnostic cytological techniques yielded similar success rate to detect EGFR mutations. Uncommon EGFR mutations were frequent events in Indonesian lung cancer patients.
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Affiliation(s)
- Elisna Syahruddin
- Department of Pulmonology and Respiratory Medicine, Faculty of Medicine, Universitas Indonesia.,Department of Pulmonology, Persahabatan Hospital, Jakarta, Indonesia
| | - Laksmi Wulandari
- Department of Pulmonology and Respiratory Medicine, Faculty of Medicine, Universitas Airlangga - Soetomo Hospital, Surabaya, Indonesia
| | - Nunuk Sri Muktiati
- Department of Pulmonology and Respiratory Medicine, Faculty of Medicine, Universitas Brawijaya - Saiful Anwar General Hospital, Malang, Indonesia
| | - Ana Rima
- Department of Pulmonology and Respiratory Medicine, Faculty of Medicine, Universitas Sebelas Maret, Dr. Moewardi General Hospital, Surakarta, Indonesia
| | - Noni Soeroso
- Department of Pulmonology and Respiratory Medicine, Faculty of Medicine, University of Sumatera Utara, Adam Malik General Hospital, Medan, Indonesia
| | - Sabrina Ermayanti
- Department of Pulmonology and Respiratory Medicine, Faculty of Medicine, Andalas University, M. Djamil Hospital, Padang, Indonesia
| | - Michael Levi
- Kalbe Genomics Laboratory, Division of Molecular Pathology Testing Service, PT Bifarma Adiluhung
| | - Heriawaty Hidajat
- Department of Pulmonology, Persahabatan Hospital, Jakarta, Indonesia
| | - Grace Widjajahakim
- Kalbe Genomics Laboratory, Division of Molecular Pathology Testing Service, PT Bifarma Adiluhung
| | - Ahmad Rusdan Handoyo Utomo
- Stem Cell and Cancer Institute, Cancer Diagnostic Research Division, PT Kalbe Farma Tbk, Jakarta, Indonesia
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de Biase D, Genestreti G, Visani M, Acquaviva G, Di Battista M, Cavallo G, Paccapelo A, Cancellieri A, Trisolini R, Degli Esposti R, Bartolini S, Pession A, Tallini G, Brandes AA. The percentage of Epidermal Growth Factor Receptor (EGFR)-mutated neoplastic cells correlates to response to tyrosine kinase inhibitors in lung adenocarcinoma. PLoS One 2017; 12:e0177822. [PMID: 28520821 PMCID: PMC5433779 DOI: 10.1371/journal.pone.0177822] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2017] [Accepted: 05/03/2017] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Epidermal Growth Factor Receptor (EGFR) molecular analysis is performed to assess the responsiveness to Tyrosine Kinase Inhibitors (TKIs) in patients with Non-Small Cell Lung Cancer (NSCLC). The existence of molecular intra-tumoral heterogeneity has been observed in lung cancers. The aim of the present study is to investigate if the percentage of mutated neoplastic cells within the tumor sample might influence the responsiveness to TKIs treatment. MATERIAL AND METHODS A total of 931 cases of NSCLC were analyzed for EGFR mutational status (exon 18, 19, 20, 21) using Next Generation Sequencer. The percentage of mutated neoplastic cells was calculated after normalizing the percentage of mutated alleles obtained after next generation sequencer analysis with the percentage of neoplastic cells in each tumor. RESULTS Next generation sequencing revealed an EGFR mutation in 167 samples (17.9%), mainly deletions in exon 19. In 18 patients treated with TKIs and with available follow-up, there was a significant correlation between the percentage of mutated neoplastic cells and the clinical response (P = 0.017). Patients with a percentage of mutated neoplastic cells greater than 56%, have a statistical trend (P = 0.081) for higher Overall Survival (26.3 months) when compared to those with a rate of mutated neoplastic cells lower than 56% (8.2 months). CONCLUSIONS The percentage of EGFR-mutated neoplastic cells in the tumor is associated with response to TKIs. A "quantitative result" of EGFR mutational status might provide useful information in order to recognize those patients which might have the greatest benefit from TKIs.
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Affiliation(s)
- Dario de Biase
- Department of Pharmacy and Biotechnology (Dipartimento di Farmacia e Biotecnologie) - Molecular Diagnostic Unit, Azienda USL di Bologna, University of Bologna, Bologna, Italy
- * E-mail: (DdB); (GG)
| | - Giovenzio Genestreti
- Department of Oncology, AUSL Bologna – IRCCS Institute of Neurological Sciences, Bologna, Italy
- * E-mail: (DdB); (GG)
| | - Michela Visani
- Department of Medicine (Dipartimento di Medicina Specialistica, Diagnostica e Sperimentale) - Molecular Diagnostic Unit, Azienda USL di Bologna, University of Bologna School of Medicine, Bologna, Italy
| | - Giorgia Acquaviva
- Department of Medicine (Dipartimento di Medicina Specialistica, Diagnostica e Sperimentale) - Molecular Diagnostic Unit, Azienda USL di Bologna, University of Bologna School of Medicine, Bologna, Italy
| | - Monica Di Battista
- Department of Oncology, AUSL Bologna – IRCCS Institute of Neurological Sciences, Bologna, Italy
| | - Giovanna Cavallo
- Department of Oncology, AUSL Bologna – IRCCS Institute of Neurological Sciences, Bologna, Italy
| | - Alexandro Paccapelo
- Department of Oncology, AUSL Bologna – IRCCS Institute of Neurological Sciences, Bologna, Italy
| | | | - Rocco Trisolini
- Interventional Pulmology, Sant'Orsola, Malpighi Hospital, Bologna, Italy
| | - Roberta Degli Esposti
- Department of Oncology, AUSL Bologna – IRCCS Institute of Neurological Sciences, Bologna, Italy
| | - Stefania Bartolini
- Department of Oncology, AUSL Bologna – IRCCS Institute of Neurological Sciences, Bologna, Italy
| | - Annalisa Pession
- Department of Pharmacy and Biotechnology (Dipartimento di Farmacia e Biotecnologie) - Molecular Diagnostic Unit, Azienda USL di Bologna, University of Bologna, Bologna, Italy
| | - Giovanni Tallini
- Department of Medicine (Dipartimento di Medicina Specialistica, Diagnostica e Sperimentale) - Molecular Diagnostic Unit, Azienda USL di Bologna, University of Bologna School of Medicine, Bologna, Italy
| | - Alba A. Brandes
- Department of Oncology, AUSL Bologna – IRCCS Institute of Neurological Sciences, Bologna, Italy
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Mutant allele specific imbalance in oncogenes with copy number alterations: Occurrence, mechanisms, and potential clinical implications. Cancer Lett 2016; 384:86-93. [PMID: 27725226 DOI: 10.1016/j.canlet.2016.10.013] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2016] [Revised: 10/03/2016] [Accepted: 10/03/2016] [Indexed: 01/16/2023]
Abstract
Mutant allele specific imbalance (MASI) was initially coined to describe copy number alterations associated with the mutant allele of an oncogene. The copy number gain (CNG) specific to the mutant allele can be readily observed in electropherograms. With the development of genome-wide analyses at base-pair resolution with copy number counts, we can now further differentiate MASI into those with CNG, with copy neutral alteration (also termed acquired uniparental disomy; UPD), or with loss of heterozygosity (LOH) due to the loss of the wild-type (WT) allele. Here we summarize the occurrence of MASI with CNG, aUPD, or MASI with LOH in some major oncogenes (such as EGFR, KRAS, PIK3CA, and BRAF). We also discuss how these various classifications of MASI have been demonstrated to impact tumorigenesis, progression, metastasis, prognosis, and potentially therapeutic responses in cancer, notably in lung, colorectal, and pancreatic cancers.
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