1
|
Elst L, Philips G, Vandermaesen K, Bassez A, Lodi F, Vreeburg MTA, Brouwer OR, Schepers R, Van Brussel T, Mohanty SK, Parwani AV, Spans L, Vanden Bempt I, Jacomen G, Baldewijns M, Lambrechts D, Albersen M. Single-cell Atlas of Penile Cancer Reveals TP53 Mutations as a Driver of an Aggressive Phenotype, Irrespective of Human Papillomavirus Status, and Provides Clues for Treatment Personalization. Eur Urol 2024; 86:114-127. [PMID: 38670879 DOI: 10.1016/j.eururo.2024.03.038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Revised: 03/11/2024] [Accepted: 03/25/2024] [Indexed: 04/28/2024]
Abstract
BACKGROUND AND OBJECTIVE TP53 loss-of-function (TP53LOF) mutations might be a driver of poor prognosis and chemoresistance in both human papillomavirus (HPV)-independent (HPV-) and HPV-associated (HPV+) penile squamous cell carcinoma (PSCC). Here, we aim to describe transcriptomic differences in the PSCC microenvironment stratified by TP53LOF and HPV status. METHODS We used single-cell RNA sequencing (scRNA-seq) and T-cell receptor sequencing to obtain a comprehensive atlas of the cellular architecture of PSCC. TP53LOF and HPV status were determined by targeted next-generation sequencing and sequencing HPV-DNA reads. Six HPV+ TP53 wild type (WT), six HPV- TP53WT, and four TP53LOF PSCC samples and six controls were included. Immunohistochemistry and hematoxylin-eosin confirmed the morphological context of the observed signatures. Prognostic differences between patient groups were validated in 541 PSCC patients using Kaplan-Meier survival estimates. KEY FINDINGS AND LIMITATIONS Patients with aberrant p53 staining fare much worse than patients with either HPV- or HPV+ tumors and WT p53 expression. Using scRNA-seq, we revealed 65 cell subtypes within 83 682 cells. TP53LOF tumors exhibit a partial epithelial-to-mesenchymal transition, immune-excluded, angiogenic, and morphologically invasive environment, underlying their aggressive phenotype. HPV- TP53WT tumors show stemness and immune exhaustion. HPV+ TP53WT tumors mirror normal epithelial maturation with upregulation of antibody-drug-conjugate targets and activation of innate immunity. Inherent to the scRNA-seq analysis, low sample size is a limitation and validation of signatures in large PSCC cohorts is needed. CONCLUSIONS AND CLINICAL IMPLICATIONS This first scRNA-seq atlas offers unprecedented in-depth insights into PSCC biology underlying prognostic differences based on TP53 and HPV status. Our findings provide clues for testing novel biomarker-driven therapies in PSCC. PATIENT SUMMARY Here, we analyzed tissues of penile cancer at the level of individual cells, which helps us understand why patients who harbor a deactivating mutation in the TP53 gene do much worse than patients lacking such a mutation. Such an analysis may help us tailor future therapies based on TP53 gene mutations and human papillomavirus status of these tumors.
Collapse
Affiliation(s)
- Laura Elst
- Center for Cancer Biology, Laboratory of Translational Genetics, VIB-KU Leuven, Leuven, Belgium; Department of Urology, University Hospitals Leuven, Leuven, Belgium; Department of Development and Regeneration, KU Leuven, Leuven, Belgium
| | - Gino Philips
- Center for Cancer Biology, Laboratory of Translational Genetics, VIB-KU Leuven, Leuven, Belgium
| | - Kaat Vandermaesen
- Center for Cancer Biology, Laboratory of Translational Genetics, VIB-KU Leuven, Leuven, Belgium; Department of Urology, University Hospitals Leuven, Leuven, Belgium; Department of Development and Regeneration, KU Leuven, Leuven, Belgium
| | - Ayse Bassez
- Center for Cancer Biology, Laboratory of Translational Genetics, VIB-KU Leuven, Leuven, Belgium
| | - Francesca Lodi
- Center for Cancer Biology, Laboratory of Translational Genetics, VIB-KU Leuven, Leuven, Belgium
| | - Manon T A Vreeburg
- Department of Urology, Netherlands Cancer Institute-Antoni van Leeuwenhoek Hospital, Amsterdam, The Netherlands
| | - Oscar R Brouwer
- Department of Urology, Netherlands Cancer Institute-Antoni van Leeuwenhoek Hospital, Amsterdam, The Netherlands
| | - Rogier Schepers
- Center for Cancer Biology, Laboratory of Translational Genetics, VIB-KU Leuven, Leuven, Belgium
| | - Thomas Van Brussel
- Center for Cancer Biology, Laboratory of Translational Genetics, VIB-KU Leuven, Leuven, Belgium
| | - Sambit K Mohanty
- Department of Pathology and Laboratory Medicine, Advanced Medical Research Institute, Bhubaneswar, India; Department of Pathology and Laboratory Medicine, CORE Diagnostics, Gurgaon, India
| | - Anil V Parwani
- Department of Pathology, Wexner Medical Center, Columbus, OH, USA
| | - Lien Spans
- Department of Human Genetics, University Hospitals Leuven, Leuven, Belgium
| | | | - Gerd Jacomen
- Laboratory of Pathological Anatomy, AZ Sint-Maarten, Mechelen, Belgium
| | | | - Diether Lambrechts
- Center for Cancer Biology, Laboratory of Translational Genetics, VIB-KU Leuven, Leuven, Belgium
| | - Maarten Albersen
- Department of Urology, University Hospitals Leuven, Leuven, Belgium; Department of Development and Regeneration, KU Leuven, Leuven, Belgium.
| |
Collapse
|
2
|
De Schepper M, Koorman T, Richard F, Christgen M, Vincent-Salomon A, Schnitt SJ, van Diest PJ, Zels G, Mertens F, Maetens M, Vanden Bempt I, Harbeck N, Nitz U, Gräser M, Kümmel S, Gluz O, Weynand B, Floris G, Derksen PWB, Desmedt C. Integration of Pathological Criteria and Immunohistochemical Evaluation for Invasive Lobular Carcinoma Diagnosis: Recommendations From the European Lobular Breast Cancer Consortium. Mod Pathol 2024; 37:100497. [PMID: 38641322 DOI: 10.1016/j.modpat.2024.100497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Revised: 04/11/2024] [Accepted: 04/11/2024] [Indexed: 04/21/2024]
Abstract
Invasive lobular carcinoma (ILC) is the second most frequent type of breast cancer (BC) and its peculiar morphology is mainly driven by inactivation of CDH1, the gene coding for E-cadherin cell adhesion protein. ILC-specific therapeutic and disease-monitoring approaches are gaining momentum in the clinic, increasing the importance of accurate ILC diagnosis. Several essential and desirable morphologic diagnostic criteria are currently defined by the World Health Organization, the routine use of immunohistochemistry (IHC) for E-cadherin is not recommended. Disagreement in the diagnosis of ILC has been repeatedly reported, but interpathologist agreement increases with the use of E-cadherin IHC. In this study, we aimed to harmonize the pathological diagnosis of ILC by comparing 5 commonly used E-cadherin antibody clones (NCH-38, EP700Y, Clone 36, NCL-L-E-cad [Clone 36B5], and ECH-6). We determined their biochemical specificity for the E-cadherin protein and IHC staining performance according to type and location of mutation on the CDH1 gene. Western blot analysis on mouse cell lines with conditional E-cadherin expression revealed a reduced specificity of EP700Y and NCL-L-E-cad for E-cadherin, with cross-reactivity of Clone 36 to P-cadherin. The use of IHC improved interpathologist agreement for ILC, lobular carcinoma in situ, and atypical lobular hyperplasia. The E-cadherin IHC staining pattern was associated with variant allele frequency and likelihood of nonsense-mediated RNA decay but not with the type or position of CDH1 mutations. Based on these results, we recommend the indication for E-cadherin staining, choice of antibodies, and their interpretation to standardize ILC diagnosis in current pathology practice.
Collapse
Affiliation(s)
- Maxim De Schepper
- Department of Oncology, Laboratory for Translational Breast Cancer Research, KU Leuven, Leuven, Belgium; Department of Pathology, University Hospitals Leuven, UH Leuven, Leuven, Belgium
| | - Thijs Koorman
- Department of Pathology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - François Richard
- Department of Oncology, Laboratory for Translational Breast Cancer Research, KU Leuven, Leuven, Belgium
| | | | - Anne Vincent-Salomon
- Department of Pathology-Genetics_Immunology, Institut Curie, PSL Research University, Diagnostic and Theranostic Medicine Division, Paris, France
| | - Stuart J Schnitt
- Department of Pathology, Brigham and Women's Hospital, Dana-Farber Cancer Institute and Harvard Medical School, Boston, Massachusetts
| | - Paul J van Diest
- Department of Pathology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Gitte Zels
- Department of Oncology, Laboratory for Translational Breast Cancer Research, KU Leuven, Leuven, Belgium; Department of Pathology, University Hospitals Leuven, UH Leuven, Leuven, Belgium
| | - Freya Mertens
- Department of Pathology, University Hospitals Leuven, UH Leuven, Leuven, Belgium
| | - Marion Maetens
- Department of Oncology, Laboratory for Translational Breast Cancer Research, KU Leuven, Leuven, Belgium
| | | | - Nadia Harbeck
- West German Study Group, Mönchengladbach, Germany; Department of Gynecology and Obstetrics, Breast Center, University of Munich (LMU) and CCCLMU, Munich, Germany
| | - Ulrike Nitz
- West German Study Group, Mönchengladbach, Germany; Ev. Hospital Bethesda, Breast Center Niederrhein, Mönchengladbach, Germany
| | - Monika Gräser
- West German Study Group, Mönchengladbach, Germany; Ev. Hospital Bethesda, Breast Center Niederrhein, Mönchengladbach, Germany; Department of Gynecology, University Medical Center Hamburg, Germany
| | - Sherko Kümmel
- West German Study Group, Mönchengladbach, Germany; Charité - Universitätsmedizin Berlin, Department of Gynecology with Breast Center, Berlin, Germany; Clinics Essen-Mitte, Breast Unit, Essen, Germany
| | - Oleg Gluz
- West German Study Group, Mönchengladbach, Germany; Ev. Hospital Bethesda, Breast Center Niederrhein, Mönchengladbach, Germany; University Clinics Cologne, Women's Clinic and Breast Center, Cologne, Germany
| | - Birgit Weynand
- Department of Pathology, University Hospitals Leuven, UH Leuven, Leuven, Belgium
| | - Giuseppe Floris
- Department of Pathology, University Hospitals Leuven, UH Leuven, Leuven, Belgium.
| | - Patrick W B Derksen
- Department of Pathology, University Medical Center Utrecht, Utrecht, The Netherlands.
| | - Christine Desmedt
- Department of Oncology, Laboratory for Translational Breast Cancer Research, KU Leuven, Leuven, Belgium.
| |
Collapse
|
3
|
Nishida T, Naito Y, Takahashi T, Saito T, Hisamori S, Manaka D, Ogawa K, Hirota S, Ichikawa H. Molecular and clinicopathological features of KIT/PDGFRA wild-type gastrointestinal stromal tumors. Cancer Sci 2024; 115:894-904. [PMID: 38178783 PMCID: PMC10920999 DOI: 10.1111/cas.16058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Revised: 10/22/2023] [Accepted: 12/06/2023] [Indexed: 01/06/2024] Open
Abstract
Approximately 10% of gastrointestinal stromal tumors (GISTs) harbor reportedly no KIT and PDGFRA mutations (wild-type GISTs). The clinicopathological features and oncologic outcomes of wild-type GISTs based on molecular profiles are unknown. We recruited 35 wild-type GIST patients from the two registry studies of high-risk GISTs between 2012 and 2015 and primary GISTs between 2003 and 2014. Molecular profiling of wild-type GISTs was performed by targeted next-generation sequencing (NGS) using formalin-fixed paraffin-embedded tumor samples. Among 35 wild-type GISTs, targeted NGS analysis detected NF1, SDH, or BRAF mutation: 16 NF1-GISTs with various NF1 mutations, 12 SDH-GISTs (4 with SDHA mutations, 4 with SDHB mutations, and 4 with SDHB-negative staining), and 5 BRAF-GISTs with the V600E mutation. Two GISTs showed no mutations based on our targeted NGS analysis. Additional gene mutations were infrequent in primary wild-type GISTs and found in TP53, CREBBP, CDKN2A, and CHEK2. Most NF1-GISTs were located in the small intestine (N = 12; 75%) and showed spindle cell features (N = 15; 94%) and multiple tumors (N = 6, 38%) with modest proliferation activities. In contrast, SDH-GISTs were predominantly found in the stomach (N = 11; 92%), exhibiting epithelioid cell (N = 6; 50%) and multiple (N = 6, 50%) features. The overall survival of patients with SDH-GISTs appeared to be better than that of BRAF-GISTs (p = 0.0107) or NF1-GISTs (p = 0.0754), respectively. In conclusion, major molecular changes in wild-type GISTs include NF1, SDH, and BRAF. NF1-GISTs involved multifocal spindle cell tumors in the small intestine. SDH-GISTs occurred in young patients and were multifocal in the stomach and clinically indolent.
Collapse
Affiliation(s)
- Toshirou Nishida
- Department of SurgeryJapan Community Health‐care Organization Osaka HospitalOsakaJapan
- Department of SurgeryNational Cancer Center HospitalTokyoJapan
- National Institute of Biomedical Innovation, Health and Nutrition, Laboratory of Nuclear Transport DynamicsIbarakiJapan
| | - Yoichi Naito
- Department of General Internal MedicineNational Cancer Center Hospital EastKashiwaJapan
- Department of Experimental TherapeuticsNational Cancer Center Hospital EastKashiwaJapan
- Department of Medical OncologyNational Cancer Center Hospital EastKashiwaJapan
| | - Tsuyoshi Takahashi
- Department of Gastroenterological SurgeryOsaka University Graduate School of MedicineSuitaJapan
| | - Takuro Saito
- Department of Gastroenterological SurgeryOsaka University Graduate School of MedicineSuitaJapan
- Department of SurgeryOsaka Police HospitalOsakaJapan
| | - Shigeo Hisamori
- Department of Surgery, Graduate School of MedicineKyoto UniversityKyotoJapan
| | - Dai Manaka
- Department of SurgeryKyoto Katsura HospitalKyotoJapan
| | - Katsuhiro Ogawa
- Department of SurgerySaiseikai Kumamoto HospitalKumamotoJapan
| | - Seiichi Hirota
- Department of Surgical PathologyHyogo Medical University School of MedicineNishinomiyaJapan
| | - Hitoshi Ichikawa
- Department of Clinical GenomicsNational Cancer Center Research InstituteTokyoJapan
| |
Collapse
|
4
|
Incorvaia L, De Biase D, Nannini M, Fumagalli E, Vincenzi B, De Luca I, Brando C, Perez A, Pantaleo MA, Gasperoni S, D’Ambrosio L, Grignani G, Maloberti T, Pedone E, Bazan Russo TD, Mazzocca A, Algeri L, Dimino A, Barraco N, Serino R, Gristina V, Galvano A, Bazan V, Russo A, Badalamenti G. KIT/PDGFRA Variant Allele Frequency as Prognostic Factor in Gastrointestinal Stromal Tumors (GISTs): Results From a Multi-Institutional Cohort Study. Oncologist 2024; 29:e141-e151. [PMID: 37463014 PMCID: PMC10769785 DOI: 10.1093/oncolo/oyad206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Accepted: 06/09/2023] [Indexed: 01/07/2024] Open
Abstract
BACKGROUND The patient selection for optimal adjuvant therapy in gastrointestinal stromal tumors (GISTs) is provided by nomogram based on tumor size, mitotic index, tumor location, and tumor rupture. Although mutational status is not currently used to risk assessment, tumor genotype showed a prognostic influence on natural history and tumor relapse. Innovative measures, such as KIT/PDGFRA-mutant-specific variant allele frequency (VAF) levels detection from next-generation sequencing (NGS), may act as a surrogate of tumor burden and correlate with prognosis and overall survival of patients with GIST, helping the choice for adjuvant treatment. PATIENTS AND METHODS This was a multicenter, hospital-based, retrospective/prospective cohort study to investigate the prognostic role of KIT or PDGFRA-VAF of GIST in patients with radically resected localized disease. In the current manuscript, we present the results from the retrospective phase of the study. RESULTS Two-hundred (200) patients with GIST between 2015 and 2022 afferent to 6 Italian Oncologic Centers in the EURACAN Network were included in the study. The receiver operating characteristic (ROC) curves analysis was used to classify "low" vs. "high" VAF values, further normalized on neoplastic cellularity (nVAF). When RFS between the low and high nVAF groups were compared, patients with GIST with KIT/PDGFRA nVAF > 50% showed less favorable RFS than patients in the group of nVAF ≤ 50% (2-year RFS, 72.6% vs. 93%, respectively; P = .003). The multivariable Cox regression model confirmed these results. In the homogeneous sub-population of intermediate-risk, patients with KIT-mutated GIST, the presence of nVAF >50% was statistically associated with higher disease recurrence. CONCLUSION In our study, we demonstrated that higher nVAF levels were independent predictors of GIST prognosis and survival in localized GIST patients with tumors harboring KIT or PDGFRA mutations. In the cohort of intermediate-risk patients, nVAF could be helpful to improve prognostication and the use of adjuvant imatinib.
Collapse
Affiliation(s)
- Lorena Incorvaia
- Department of Surgical, Oncological and Oral Sciences, Section of Medical Oncology, University of Palermo, Palermo, Italy
| | - Dario De Biase
- Department of Pharmacy and Biotechnology, University of Bologna, Bologna, Italy
- Solid Tumor Molecular Pathology Laboratory, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
| | - Margherita Nannini
- Department of Experimental, Diagnostic and Specialized Medicine, S. Orsola-Malpighi Hospital, University of Bologna, Bologna, Italy
| | - Elena Fumagalli
- Department of Medical Oncology, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Bruno Vincenzi
- Department of Medical Oncology, Campus Biomedico University of Rome, Rome, Italy
| | - Ida De Luca
- Department of Surgical, Oncological and Oral Sciences, Section of Medical Oncology, University of Palermo, Palermo, Italy
| | - Chiara Brando
- Department of Surgical, Oncological and Oral Sciences, Section of Medical Oncology, University of Palermo, Palermo, Italy
| | - Alessandro Perez
- Department of Surgical, Oncological and Oral Sciences, Section of Medical Oncology, University of Palermo, Palermo, Italy
| | - Maria A Pantaleo
- Department of Experimental, Diagnostic and Specialized Medicine, S. Orsola-Malpighi Hospital, University of Bologna, Bologna, Italy
| | - Silvia Gasperoni
- Department of Oncology and Robotic Surgery, Translational Oncology Unit, University Hospital Careggi, Firenze, Italy
| | - Lorenzo D’Ambrosio
- Division of Medical Oncology, Candiolo Cancer Institute, FPO - IRCCS, Candiolo, TO, Italy
| | - Giovanni Grignani
- Division of Medical Oncology, Candiolo Cancer Institute, FPO - IRCCS, Candiolo, TO, Italy
| | - Thais Maloberti
- Solid Tumor Molecular Pathology Laboratory, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
- Department of Medical and Surgical Sciences (DIMEC), University of Bologna, Bologna, Italy
| | - Erika Pedone
- Department of Surgical, Oncological and Oral Sciences, Section of Medical Oncology, University of Palermo, Palermo, Italy
| | - Tancredi Didier Bazan Russo
- Department of Surgical, Oncological and Oral Sciences, Section of Medical Oncology, University of Palermo, Palermo, Italy
| | - Alessandro Mazzocca
- Department of Medical Oncology, Campus Biomedico University of Rome, Rome, Italy
| | - Laura Algeri
- Department of Surgical, Oncological and Oral Sciences, Section of Medical Oncology, University of Palermo, Palermo, Italy
| | - Alessandra Dimino
- Department of Surgical, Oncological and Oral Sciences, Section of Medical Oncology, University of Palermo, Palermo, Italy
| | - Nadia Barraco
- Department of Surgical, Oncological and Oral Sciences, Section of Medical Oncology, University of Palermo, Palermo, Italy
| | - Roberta Serino
- Department of Medical Oncology, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Valerio Gristina
- Department of Surgical, Oncological and Oral Sciences, Section of Medical Oncology, University of Palermo, Palermo, Italy
| | - Antonio Galvano
- Department of Surgical, Oncological and Oral Sciences, Section of Medical Oncology, University of Palermo, Palermo, Italy
| | - Viviana Bazan
- Department of Biomedicine, Neuroscience and Advanced Diagnostics (BIND), Section of Medical Oncology, University of Palermo, Palermo, Italy
| | - Antonio Russo
- Department of Surgical, Oncological and Oral Sciences, Section of Medical Oncology, University of Palermo, Palermo, Italy
| | - Giuseppe Badalamenti
- Department of Surgical, Oncological and Oral Sciences, Section of Medical Oncology, University of Palermo, Palermo, Italy
| |
Collapse
|
5
|
Li Y, Gao J, Wang D, Liu Z, Zhang H. TRIM4 Expression Related to Malignant Progression and Cisplatin Resistance in Osteosarcoma. Appl Biochem Biotechnol 2024; 196:233-244. [PMID: 37115387 DOI: 10.1007/s12010-023-04551-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/18/2023] [Indexed: 04/29/2023]
Abstract
Osteosarcoma (OS) is a high-grade intraosseous malignancy. Twenty to thirty percent of OS patients react poorly to standard therapy with a combination of surgical resection and chemotherapy. It is necessary to find molecules that play an important role in this. This study explored the role of TRIM4 in OS chemotherapy sensitivity and malignant progression. The expression of TRIM4 in OS tissues and cells was examined by RT-qPCR, immunohistochemical staining, and western blot. Specific siRNA was transfected into U2-OS and SAOS2 cells to target TRIM4. Cell biological behavior was examined by CCK-8, Transwell, and flow cytometry experiments. Cisplatin-resistant SAOS2 (SAOS2-Cis-R) cells were established, and the effect of TRIM4 expression on the cisplatin response of SAOS2 cells was tested. Knockdown of TRIM4 significantly inhibited the proliferation, migration, and invasion of U2-OS and SAOS2 cells and induced apoptosis. TRIM4 expression was significantly higher in chemotherapy-resistant OS tissues compared to chemotherapy-sensitive OS tissues. Furthermore, the expression of TRIM4 in SAOS2-Cis-R cells was significantly increased compared to parental SAOS2 cells. Moreover, overexpression of TRIM4 enhanced cisplatin resistance in parental SAOS2 cells, while the downregulation of TRIM4 expression enhanced cisplatin sensitivity of SAOS2-Cis-R cells. High TRIM4 expression might be associated with malignant progression and poor response to chemotherapy response of OS. Targeting TRIM4 may be beneficial for OS treatment or combination therapy.
Collapse
Affiliation(s)
- Yan Li
- Department of Joint Surgery, Shandong Second Provincial General Hospital, No.4 Duanxing West Road, Huaiyin District, Jinan, 250022, People's Republic of China
| | - Jie Gao
- Department of Joint Surgery, Shandong Second Provincial General Hospital, No.4 Duanxing West Road, Huaiyin District, Jinan, 250022, People's Republic of China
| | - Dong Wang
- Department of Joint Surgery, Shandong Second Provincial General Hospital, No.4 Duanxing West Road, Huaiyin District, Jinan, 250022, People's Republic of China
| | - Zijin Liu
- Department of Joint Surgery, Shandong Second Provincial General Hospital, No.4 Duanxing West Road, Huaiyin District, Jinan, 250022, People's Republic of China
| | - Huawu Zhang
- Department of Joint Surgery, Shandong Second Provincial General Hospital, No.4 Duanxing West Road, Huaiyin District, Jinan, 250022, People's Republic of China.
| |
Collapse
|
6
|
Joensuu H. KIT and PDGFRA Variants and the Survival of Patients with Gastrointestinal Stromal Tumor Treated with Adjuvant Imatinib. Cancers (Basel) 2023; 15:3879. [PMID: 37568695 PMCID: PMC10417000 DOI: 10.3390/cancers15153879] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 07/22/2023] [Accepted: 07/27/2023] [Indexed: 08/13/2023] Open
Abstract
Adjuvant imatinib improves the recurrence-free survival and overall survival (OS) of patients with gastrointestinal stromal tumors (GISTs) who have a high risk of recurrence after surgery and is now considered standard treatment. Yet, OS benefit has been demonstrated in only one randomized study, the Scandinavian Sarcoma Group XVIII/AIO trial, where patients with high-risk GISTs were allocated to either 1 year or 3 years of adjuvant imatinib. SSGXVIII/AIO is also the only randomized trial in which adjuvant imatinib duration exceeding 2 years was evaluated. In this trial, the 3-year treatment led to a 45% reduction in the risk of death during the first 10 years that followed random allocation even though some of the patients did not have GISTs at tumor histology review, had mutations now known to be imatinib-resistant or had non-localized disease at study entry. In the subgroup of patients who had KIT exon 11 deletion/indel mutation, the reduction in the risk of death was 66% in favor of the longer treatment. Proper patient selection is of crucial importance since many patients are cured with surgery. Little evidence for OS benefit is available from randomized trials for patients whose GIST harbors KIT exon 9 mutation, KIT insertion mutation, PDGFRA D842V mutation, or lacks KIT and PDGFRA mutations. Adjuvant imatinib improves OS substantially if high-risk GISTs can be identified, treatment duration is long enough, and GISTs harbor an imatinib-sensitive mutation.
Collapse
Affiliation(s)
- Heikki Joensuu
- Department of Oncology, Helsinki University Hospital and University of Helsinki, 00029 Helsinki, Finland
| |
Collapse
|
7
|
Kang YK, Kim HD, Kim HJ, Park YS, Beck MY, Ryu MH. Interruption of imatinib in advanced gastrointestinal stromal tumor after prolonged imatinib maintenance in the absence of gross tumor lesions. Gastric Cancer 2023; 26:604-613. [PMID: 36884149 DOI: 10.1007/s10120-023-01377-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Accepted: 02/21/2023] [Indexed: 03/09/2023]
Abstract
BACKGROUND Current guidelines recommend indefinite imatinib treatment for advanced gastrointestinal stromal tumor (GIST) patients. Imatinib-refractory progression-free survival (PFS) and overall survival were previously reported not to differ between GIST patients who interrupted imatinib and those who did not. METHODS Clinical outcomes of 77 consecutive patients with recurrent or metastatic GIST who interrupted imatinib treatment after maintaining years of imatinib treatment in the absence of gross tumor lesions were retrospectively analyzed. Associations between clinical factors and progression-free survival (PFS) following imatinib interruption were analyzed. RESULTS The median time from the absence of gross tumor lesions to imatinib interruption was 61.5 months. Since imatinib interruption, the median PFS was 19.6 months, and 4 patients (26.3%) remained progression-free for longer than 5 years. Among the patients who had progressive disease following the interruption, imatinib re-introduction led to an 88.6% objective response rate and a 100% disease control rate. Complete removal of the initial gross tumor lesion(s) and complete removal of the residual gross tumor lesion(s) by local treatment (vs. no local treatment or residual lesions after local treatment) were independently associated with favorable PFS. CONCLUSION Interruption of imatinib following prolonged maintenance in the absence of gross tumor lesions led to disease progression in the majority of cases. However, re-introduction of imatinib resulted in effective tumor control. Unmaintained remission seems to be possible in some patients with metastatic or recurrent GIST after a prolonged remission with imatinib if there is complete removal of any gross tumor lesions.
Collapse
Affiliation(s)
- Yoon-Koo Kang
- Department of Oncology, Asan Medical Center, University of Ulsan College of Medicine, 88, Olympic-Ro 43-Gil, Songpa-Gu, Seoul, 05505, Republic of Korea.
| | - Hyung-Don Kim
- Department of Oncology, Asan Medical Center, University of Ulsan College of Medicine, 88, Olympic-Ro 43-Gil, Songpa-Gu, Seoul, 05505, Republic of Korea
| | - Hyun Jin Kim
- Department of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Young Soo Park
- Department of Pathology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Mo-Youl Beck
- Department of Oncology, Asan Medical Center, University of Ulsan College of Medicine, 88, Olympic-Ro 43-Gil, Songpa-Gu, Seoul, 05505, Republic of Korea
| | - Min-Hee Ryu
- Department of Oncology, Asan Medical Center, University of Ulsan College of Medicine, 88, Olympic-Ro 43-Gil, Songpa-Gu, Seoul, 05505, Republic of Korea
| |
Collapse
|
8
|
Da-Veiga MA, Coppieters N, Lombard A, Rogister B, Neirinckx V, Piette C. Comprehensive profiling of stem-like features in pediatric glioma cell cultures and their relation to the subventricular zone. Acta Neuropathol Commun 2023; 11:96. [PMID: 37328883 PMCID: PMC10276389 DOI: 10.1186/s40478-023-01586-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Accepted: 05/20/2023] [Indexed: 06/18/2023] Open
Abstract
Pediatric high-grade gliomas (pHGG) are brain tumors occurring in children and adolescents associated with a dismal prognosis despite existing treatments. Therapeutic failure in both adult and pHGG has been partially imputed to glioma stem cells (GSC), a subset of cancer cells endowed with stem-like cell potential and malignant, invasive, adaptative, and treatment-resistant capabilities. Whereas GSC have largely been portrayed in adult tumors, less information has been provided in pHGG. The aim of our study was to comprehensively document the stem-like capacities of seven in-use pediatric glioma cell cultures (Res259, UW479, SF188, KNS42, SF8628, HJSD-DIPG-007 and HJSD-DIPG-012) using parallel in vitro assays assessing stem cell-related protein expression, multipotency, self-renewal and proliferation/quiescence, and in vivo investigation of their tumorigenicity and invasiveness. Data obtained from in vitro experiments revealed glioma subtype-dependent expression of stem cell-related markers and varying abilities for differentiation, self-renewal, and proliferation/quiescence. Among tested cultures, DMG H3-K27 altered cultures displayed a particular pattern of stem-like markers expression and a higher fraction of cells with self-renewal potential. Four cultures displaying distinctive stem-like profiles were further tested for their ability to initiate tumors and invade the brain tissue in mouse orthotopic xenografts. The selected cell cultures all showed a great tumor formation capacity, but only DMG H3-K27 altered cells demonstrated a highly infiltrative phenotype. Interestingly, we detected DMG H3-K27 altered cells relocated in the subventricular zone (SVZ), which has been previously described as a neurogenic area, but also a potential niche for brain tumor cells. Finally, we observed an SVZ-induced phenotypic modulation of the glioma cells, as evidenced by their increased proliferation rate. In conclusion, this study recapitulated a systematic stem-like profiling of various pediatric glioma cell cultures and call to a deeper characterization of DMG H3-K27 altered cells nested in the SVZ.
Collapse
Affiliation(s)
- Marc-Antoine Da-Veiga
- Laboratory of Nervous System Diseases and Therapy, GIGA Neuroscience, GIGA Institute, University of Liège, Liège, Belgium
| | - Natacha Coppieters
- Laboratory of Nervous System Diseases and Therapy, GIGA Neuroscience, GIGA Institute, University of Liège, Liège, Belgium
| | - Arnaud Lombard
- Laboratory of Nervous System Diseases and Therapy, GIGA Neuroscience, GIGA Institute, University of Liège, Liège, Belgium
- Department of Neurosurgery, CHU Liège, Liège, Belgium
| | - Bernard Rogister
- Laboratory of Nervous System Diseases and Therapy, GIGA Neuroscience, GIGA Institute, University of Liège, Liège, Belgium
- Department of Neurology, CHU Liège, Liège, Belgium
| | - Virginie Neirinckx
- Laboratory of Nervous System Diseases and Therapy, GIGA Neuroscience, GIGA Institute, University of Liège, Liège, Belgium
| | - Caroline Piette
- Laboratory of Nervous System Diseases and Therapy, GIGA Neuroscience, GIGA Institute, University of Liège, Liège, Belgium
- Department of Pediatrics, Division of Hematology-Oncology, CHU Liège, Liège, Belgium
| |
Collapse
|
9
|
Vancanneyt J, Wilmsen B, Luyten C, Verslype C, Van Cutsem E, Roskams T, Tejpar S, Vanden Bempt I, Dekervel J. Therapeutic yield of extensive molecular profiling in cholangiocarcinoma: a retrospective single-center study. J Cancer Res Clin Oncol 2023:10.1007/s00432-023-04840-w. [PMID: 37184679 DOI: 10.1007/s00432-023-04840-w] [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: 03/30/2023] [Accepted: 05/03/2023] [Indexed: 05/16/2023]
Abstract
INTRODUCTION Current available systemic therapies for advanced cholangiocarcinoma (CCA) are of limited effectiveness and prognosis is poor. Recently, introduction of next-generation sequencing (NGS) technologies led to a better understanding of the genetic pathophysiology and, consequently, identification of molecular alterations for targeted treatment. AIM To determine the proportion of actionable alterations using extensive molecular profiling in a routine diagnostic setting and to study the effect of targeted treatment on disease control. METHODS Results of extensive molecular testing by either FoundationOne NGS or an in-house developed 96 cancer gene panel were retrospectively collected from patients with locally advanced or metastatic CCA diagnosed between 01/12/2018 and 01/08/2021 in a single center. Gene variants were classified according to ESCAT and correlated with efficacy endpoints. RESULTS Of 125 patients included, 65 patients had an intrahepatic CCA (iCCA). FGFR2 fusions and IDH1/BAP1 mutations were more frequent in iCCA, while KRAS and SMAD4 mutations were predominant in extrahepatic CCA (eCCA). Targetable alterations (ESCAT tiers I-IV) were identified in 73,6% of patients. Overall survival was significantly better for higher tiers regardless of treatment. Thirteen patients (10.4%) received targeted treatment based on molecular profiling, with a median progression-free survival (PFS) of 7.3 months. CONCLUSIONS Extensive molecular characterization led to the identification of targetable and potentially targetable alterations in a significant proportion of patients with locally advanced or metastatic CCA. We confirmed the association between higher ESCAT tier and benefit of a targeted treatment. Molecular analysis should therefore be considered in all patients fit enough for systemic treatment.
Collapse
Affiliation(s)
- Justine Vancanneyt
- Department of Gastroenterology, University Hospitals Gasthuisberg, Leuven and KU Leuven, Leuven, Belgium.
| | - Bie Wilmsen
- Department of Digestive Oncology, University Hospitals Gasthuisberg, Leuven and KU Leuven, Leuven, Belgium
| | - Caroline Luyten
- Department of Digestive Oncology, University Hospitals Gasthuisberg, Leuven and KU Leuven, Leuven, Belgium
| | - Chris Verslype
- Department of Gastroenterology/Digestive Oncology, University Hospitals Gasthuisberg, Leuven and KU Leuven, Leuven, Belgium
| | - Eric Van Cutsem
- Department of Gastroenterology/Digestive Oncology, University Hospitals Gasthuisberg, Leuven and KU Leuven, Leuven, Belgium
| | - Tania Roskams
- Department of Pathology, University Hospitals Gasthuisberg, Leuven and KU Leuven, Leuven, Belgium
| | - Sabine Tejpar
- Department of Gastroenterology/Digestive Oncology, University Hospitals Gasthuisberg, Leuven and KU Leuven, Leuven, Belgium
| | - Isabelle Vanden Bempt
- Department of Human Genetics, University Hospitals Gasthuisberg, Leuven and KU Leuven, Leuven, Belgium
| | - Jeroen Dekervel
- Department of Gastroenterology/Digestive Oncology, University Hospitals Gasthuisberg, Leuven and KU Leuven, Leuven, Belgium
| |
Collapse
|
10
|
Oreper D, Klaeger S, Jhunjhunwala S, Delamarre L. The peptide woods are lovely, dark and deep: Hunting for novel cancer antigens. Semin Immunol 2023; 67:101758. [PMID: 37027981 DOI: 10.1016/j.smim.2023.101758] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Revised: 03/22/2023] [Accepted: 03/22/2023] [Indexed: 04/08/2023]
Abstract
Harnessing the patient's immune system to control a tumor is a proven avenue for cancer therapy. T cell therapies as well as therapeutic vaccines, which target specific antigens of interest, are being explored as treatments in conjunction with immune checkpoint blockade. For these therapies, selecting the best suited antigens is crucial. Most of the focus has thus far been on neoantigens that arise from tumor-specific somatic mutations. Although there is clear evidence that T-cell responses against mutated neoantigens are protective, the large majority of these mutations are not immunogenic. In addition, most somatic mutations are unique to each individual patient and their targeting requires the development of individualized approaches. Therefore, novel antigen types are needed to broaden the scope of such treatments. We review high throughput approaches for discovering novel tumor antigens and some of the key challenges associated with their detection, and discuss considerations when selecting tumor antigens to target in the clinic.
Collapse
Affiliation(s)
- Daniel Oreper
- Genentech, 1 DNA way, South San Francisco, 94080 CA, USA.
| | - Susan Klaeger
- Genentech, 1 DNA way, South San Francisco, 94080 CA, USA.
| | | | | |
Collapse
|
11
|
Molecular Mechanisms of Gastrointestinal Stromal Tumors and Their Impact on Systemic Therapy Decision. Cancers (Basel) 2023; 15:cancers15051498. [PMID: 36900287 PMCID: PMC10001062 DOI: 10.3390/cancers15051498] [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: 02/02/2023] [Revised: 02/23/2023] [Accepted: 02/24/2023] [Indexed: 03/08/2023] Open
Abstract
Gastrointestinal stromal tumors (GISTs) are soft tissue sarcomas that mostly derive from Cajal cell precursors. They are by far the most common soft tissue sarcomas. Clinically, they present as gastrointestinal malignancies, most often with bleeding, pain, or intestinal obstruction. They are identified using characteristic immunohistochemical staining for CD117 and DOG1. Improved understanding of the molecular biology of these tumors and identification of oncogenic drivers have altered the systemic treatment of primarily disseminated disease, which is becoming increasingly complex. Gain-of-function mutations in KIT or PDGFRA genes represent the driving mutations in more than 90% of all GISTs. These patients exhibit good responses to targeted therapy with tyrosine kinase inhibitors (TKIs). Gastrointestinal stromal tumors lacking the KIT/PDGFRA mutations, however, represent distinct clinico-pathological entities with diverse molecular mechanisms of oncogenesis. In these patients, therapy with TKIs is hardly ever as effective as for KIT/PDGFRA-mutated GISTs. This review provides an outline of current diagnostics aimed at identifying clinically relevant driver alterations and a comprehensive summary of current treatments with targeted therapies for patients with GISTs in both adjuvant and metastatic settings. The role of molecular testing and the selection of the optimal targeted therapy according to the identified oncogenic driver are reviewed and some future directions are proposed.
Collapse
|
12
|
Astolfi A, Gill A, Rubin BP, Montoya D, Rothschild S, Call J, Pantaleo MA. Undetected KIT and PDGFRA mutations: an under-recognised cause of gastrointestinal stromal tumours (GISTs) incorrectly classified as wild-type. Pathology 2023; 55:136-139. [PMID: 35922263 DOI: 10.1016/j.pathol.2022.05.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Revised: 04/22/2022] [Accepted: 05/01/2022] [Indexed: 01/24/2023]
Affiliation(s)
- Annalisa Astolfi
- Department of Experimental, Diagnostic and Specialty Medicine, DIMES, University of Bologna, Italy.
| | - Anthony Gill
- Sydney Medical School, The University of Sydney, Sydney, NSW Australia
| | - Brian P Rubin
- Robert J. Tomsich Pathology and Laboratory Medicine Institute, Cleveland Clinic, Cleveland, OH, USA
| | | | | | | | - Maria A Pantaleo
- Department of Experimental, Diagnostic and Specialty Medicine, DIMES, University of Bologna, Italy; Division of Oncology, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
| |
Collapse
|
13
|
Elst L, Van Rompuy AS, Roussel E, Spans L, Vanden Bempt I, Necchi A, Ross J, Jacob JM, Baietti MF, Leucci E, Albersen M. Establishment and Characterization of Advanced Penile Cancer Patient-derived Tumor Xenografts: Paving the Way for Personalized Treatments. Eur Urol Focus 2022; 8:1787-1794. [PMID: 35537937 DOI: 10.1016/j.euf.2022.04.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 04/14/2022] [Accepted: 04/25/2022] [Indexed: 01/25/2023]
Abstract
BACKGROUND Systemic treatments for penile squamous cell carcinoma (pSCC) are toxic and inefficient. Patient-based preclinical models are essential to study novel treatments. OBJECTIVE To establish a library of patient-derived tumor xenograft (PDX) models of human papillomavirus-positive (HPV+) and -negative (HPV-) pSCC and characterize these at the genomic and histological levels. DESIGN, SETTING, AND PARTICIPANTS Eighteen tumor samples from 14 patients with recurrent or metastatic pSCC were implanted in nude mice. A biobank of PDX tumors was established after passaging of patient samples (F0) for three generations (F1, F2, F3) and was characterized using histopathology and targeted next-generation sequencing (tNGS). Single-nucleotide polymorphism fingerprinting was used to confirm PDX genealogy. OUTCOME MEASUREMENTS AND STATISTICAL ANALYSIS The engraftment rate, overall growth rate, and pSCC histomorphology were checked for each PDX generation. Staining for p40 (a pSCC marker) and p16 (a surrogate for HPV infection) was performed for F0 samples. The mutational profile according to a validated panel of 96 cancer genes was determined for F0 and F3 samples and compared to a larger tNGS database. RESULTS AND LIMITATIONS Including a previously established pilot model, 11 out of 18 tumor samples (61%) successfully engrafted in F1. The mean time from implantation in F1 to completion of F3 was 36 wk (standard deviation 18). Histological fidelity was demonstrated across generations. The patient mutational profiles were preserved in F3 and were representative of 277 pSCC samples in the Foundation Medicine database. The rapid progression of pSCC in patients from our selected high-risk cohort impeded the use of PDXs as avatars. CONCLUSIONS We successfully established the first library of 11 PDX models of HPV- and HPV+ pSCC. Our PDX models showed high engraftment rates and histological and genomic fidelity to the tumor tissue of origin. These models may help in paving the way towards the development of novel treatments. PATIENT SUMMARY We established 11 animal models based on tumor tissue from patients with penile cancer. These models could play a vital role in selection of novel treatments according to genetic mutations. In the future, therapies with confirmed preclinical effects may have a profound impact on the development of personalized treatments in penile cancer.
Collapse
Affiliation(s)
- Laura Elst
- Laboratory of Experimental Urology, Department of Development and Regeneration, KU Leuven, Leuven, Belgium; Department of Urology, University Hospitals Leuven, Leuven, Belgium
| | | | - Eduard Roussel
- Laboratory of Experimental Urology, Department of Development and Regeneration, KU Leuven, Leuven, Belgium; Department of Urology, University Hospitals Leuven, Leuven, Belgium
| | - Lien Spans
- Department of Human Genetics, University Hospitals Leuven, Leuven, Belgium
| | | | - Andrea Necchi
- San Raffaele Hospital and Scientific Institute, Vita-Salute San Raffaele University, Milan, Italy; Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Jeffrey Ross
- Foundation Medicine, Cambridge, MA, USA; Upstate Medical University, Syracuse, NY, USA
| | | | - Maria-Francesca Baietti
- Trace, Department of Oncology, Leuven Cancer Institute, KU Leuven, Leuven, Belgium; Laboratory of RNA Cancer Biology, Department of Oncology, Leuven Cancer Institute, KU Leuven, Leuven, Belgium
| | - Eleonora Leucci
- Trace, Department of Oncology, Leuven Cancer Institute, KU Leuven, Leuven, Belgium; Laboratory of RNA Cancer Biology, Department of Oncology, Leuven Cancer Institute, KU Leuven, Leuven, Belgium
| | - Maarten Albersen
- Laboratory of Experimental Urology, Department of Development and Regeneration, KU Leuven, Leuven, Belgium; Department of Urology, University Hospitals Leuven, Leuven, Belgium.
| |
Collapse
|
14
|
Unk M, Bombač A, Jezeršek Novaković B, Stegel V, Šetrajčič Dragoš V, Blatnik O, Klančar G, Novaković S. Correlation of treatment outcome in sanger/RT‑qPCR KIT/PDGFRA wild‑type metastatic gastrointestinal stromal tumors with next‑generation sequencing results: A single‑center report. Oncol Rep 2022; 48:167. [PMID: 35904169 PMCID: PMC9351002 DOI: 10.3892/or.2022.8382] [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: 06/08/2022] [Accepted: 07/19/2022] [Indexed: 11/29/2022] Open
Abstract
In patients with gastrointestinal stromal tumors (GIST), it has become mandatory to determine the driver mutation in order to predict the response to standard treatment with tyrosine kinase inhibitors (TKI). A total of 10–15% of all GIST lack activating mutations in KIT proto-oncogene, receptor tyrosine kinase (KIT)/platelet-derived growth factor receptor alpha (PDGFRA) and have been classified as KIT/PDGFRA wild-type (WT) GIST. They are characterized by poor response to TKI. From a group of 119 metastatic GIST patients, 17 patients with KIT/PDGFRA/BRAF WT GIST as determined by reverse transcription-quantitative (RT-q) PCR and Sanger sequencing were profiled by a targeted next-generation sequencing (NGS) approach and their treatment outcome was assessed. In the present study, 41.2% of patients as KIT/PDGFRA/BRAF WT GIST examined with RT-qPCR and Sanger sequencing were confirmed to be carriers of pathogenic KIT/PDGFRA mutations by NGS and were responsive to TKI. The percentage of genuinely KIT/PDGFRA WT GIST in the present study thereby dropped from the initial 14.3% detected with the RT-qPCR and Sanger sequencing to 7.6% after NGS. Their outcome was universally poor. The reliability of RT-qPCR and direct Sanger sequencing results in this setting is therefore insufficient and it is recommended that NGS becomes a requirement for treatment decision at least in KIT/PDGFRA/BRAF WT GIST as determined by RT-qPCR and Sanger sequencing.
Collapse
Affiliation(s)
- Mojca Unk
- Faculty of Medicine, University of Ljubljana, SI‑1000 Ljubljana, Slovenia
| | - Alenka Bombač
- Department of Molecular Diagnostics, Institute of Oncology Ljubljana, SI‑1000 Ljubljana, Slovenia
| | | | - Vida Stegel
- Department of Molecular Diagnostics, Institute of Oncology Ljubljana, SI‑1000 Ljubljana, Slovenia
| | - Vita Šetrajčič Dragoš
- Department of Molecular Diagnostics, Institute of Oncology Ljubljana, SI‑1000 Ljubljana, Slovenia
| | - Olga Blatnik
- Department of Pathology, Institute of Oncology Ljubljana, SI‑1000 Ljubljana, Slovenia
| | - Gašper Klančar
- Department of Molecular Diagnostics, Institute of Oncology Ljubljana, SI‑1000 Ljubljana, Slovenia
| | - Srdjan Novaković
- Faculty of Medicine, University of Ljubljana, SI‑1000 Ljubljana, Slovenia
| |
Collapse
|
15
|
New treatment strategies for advanced-stage gastrointestinal stromal tumours. Nat Rev Clin Oncol 2022; 19:328-341. [PMID: 35217782 DOI: 10.1038/s41571-022-00606-4] [Citation(s) in RCA: 32] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/08/2022] [Indexed: 02/06/2023]
Abstract
When gastrointestinal stromal tumour (GIST), the most common form of sarcoma, was first recognized as a distinct pathological entity in the 1990s, patients with advanced-stage disease had a very poor prognosis owing to a lack of effective medical therapies. The discovery of KIT mutations as the first and most prevalent drivers of GIST and the subsequent development of the first KIT tyrosine kinase inhibitor (TKI), imatinib, revolutionized the treatment of patients with this disease. We can now identify the driver mutation in 99% of patients with GIST via molecular diagnostic testing, and therapies have been developed to treat many, but not all, molecular subtypes of the disease. At present, seven drugs are approved by the FDA for the treatment of advanced-stage GIST (imatinib, sunitinib, regorafenib, ripretinib, avapritinib, larotrectinib and entrectinib), all of which are TKIs. Although these agents can be very effective for treating certain GIST subtypes, challenges remain and new therapeutic approaches are needed. In this Review, we discuss the molecular subtypes of GIST and the evolution of current treatments, as well as their therapeutic limitations. We also highlight emerging therapeutic approaches that might overcome clinical challenges through novel strategies predicated on the biological features of the distinct GIST molecular subtypes.
Collapse
|
16
|
Case report: Hepatoid adenocarcinoma of soft tissue. CURRENT PROBLEMS IN CANCER: CASE REPORTS 2022. [DOI: 10.1016/j.cpccr.2021.100134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
|
17
|
George S, von Mehren M, Fletcher JA, Sun J, Zhang S, Pritchard JR, Hodgson JG, Kerstein D, Rivera VM, Haluska FG, Heinrich MC. PHASE 2 STUDY OF PONATINIB IN ADVANCED GASTROINTESTINAL STROMAL TUMORS: EFFICACY, SAFETY, AND IMPACT OF LIQUID BIOPSY AND OTHER BIOMARKERS. Clin Cancer Res 2022; 28:1268-1276. [PMID: 35091442 DOI: 10.1158/1078-0432.ccr-21-2037] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 12/15/2021] [Accepted: 01/25/2022] [Indexed: 11/16/2022]
Abstract
PURPOSE Evaluate ponatinib for advanced gastrointestinal stromal tumors (GIST). PATIENTS AND METHODS This single-arm phase 2 trial enrolled patients with metastatic and/or unresectable GIST with failure of prior tyrosine kinase inhibitor (TKI) treatment into two cohorts based on presence or absence of KIT exon 11 (ex11) primary mutations. Patients initially received ponatinib 45 mg once daily. Following a temporary clinical hold in October 2013, dose reductions were implemented to reduce risk of arterial occlusive events (AOEs). Primary endpoint was 16-week clinical benefit rate (CBR) in KIT ex11-positive cohort. KIT mutations in circulating tumor DNA (ctDNA) were assessed. RESULTS Forty-five patients enrolled (30 KIT ex11-positive and 15 KIT ex11-negative); median follow-up was 14.7 and 13.6 months, respectively, as of August 1, 2016. Sixteen-week CBR was 36% (KIT ex11-positive; primary endpoint) and 20% (KIT ex11-negative). ctDNA analyses (n = 37) demonstrated strong concordance of primary KIT mutations between plasma and tumor. At least two secondary mutations were detected in 35% of patients overall and 54% of KIT ex11-positive patients. Changes from baseline in mutated ctDNA levels were consistent with clinical activity. Ponatinib was ineffective in patients with KIT exon 9 primary mutations. Resistance was associated with emergence of V654A. AOEs and venous thromboembolic events occurred in three and two patients, respectively. Six patients died; two deaths (pneumonia and pulmonary embolism) were considered possibly ponatinib-related. CONCLUSION Ponatinib demonstrated activity in advanced GIST, particularly in KIT ex11-positive disease. ctDNA analysis confirmed heterogeneous resistance mutations in TKI-pretreated advanced GIST. Safety was consistent with previous studies.
Collapse
Affiliation(s)
| | | | - Jonathan A Fletcher
- Department of Pathology, Brigham and Women's Hospital, Harvard Medical School
| | - Jichao Sun
- Clinical Research, ARIAD Pharmaceuticals, Inc
| | - Sen Zhang
- ARIAD Pharmaceuticals, Inc., Cambridge, MA, USA, a wholly owned subsidiary of Takeda Pharmaceutical Company Limited
| | | | | | - David Kerstein
- Clinical Research and Development, Theseus Pharmaceuticals
| | | | | | - Michael C Heinrich
- Knight Cancer Institute, Portland VA Health Care System and Oregon Health & Science University
| |
Collapse
|
18
|
Schipper LJ, Monkhorst K, Samsom KG, Bosch LJ, Snaebjornsson P, van Boven H, Roepman P, van der Kolk LE, van Houdt WJ, van der Graaf WT, Meijer GA, Voest EE. Clinical Impact of Prospective Whole Genome Sequencing in Sarcoma Patients. Cancers (Basel) 2022; 14:436. [PMID: 35053600 PMCID: PMC8773512 DOI: 10.3390/cancers14020436] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 01/12/2022] [Accepted: 01/14/2022] [Indexed: 12/21/2022] Open
Abstract
With more than 70 different histological sarcoma subtypes, accurate classification can be challenging. Although characteristic genetic events can largely facilitate pathological assessment, large-scale molecular profiling generally is not part of regular diagnostic workflows for sarcoma patients. We hypothesized that whole genome sequencing (WGS) optimizes clinical care of sarcoma patients by detection of diagnostic and actionable genomic characteristics, and of underlying hereditary conditions. WGS of tumor and germline DNA was incorporated in the diagnostic work-up of 83 patients with a (presumed) sarcomas in a tertiary referral center. Clinical follow-up data were collected prospectively to assess impact of WGS on clinical decision making. In 12/83 patients (14%), the genomic profile led to revision of cancer diagnosis, with change of treatment plan in eight. All twelve patients had undergone multiple tissue retrieval procedures and immunohistopathological assessments by regional and expert pathologists prior to WGS analysis. Actionable biomarkers with therapeutic potential were identified for 30/83 patients. Pathogenic germline variants were present in seven patients. In conclusion, unbiased genomic characterization with WGS identifies genomic biomarkers with direct clinical implications for sarcoma patients. Given the diagnostic complexity and high unmet need for new treatment opportunities in sarcoma patients, WGS can be an important extension of the diagnostic arsenal of pathologists.
Collapse
Affiliation(s)
- Luuk J. Schipper
- Department of Molecular Oncology, The Netherlands Cancer Institute, 1066 CX Amsterdam, The Netherlands;
- Oncode Institute, 3521 AL Utrecht, The Netherlands
| | - Kim Monkhorst
- Department of Pathology, The Netherlands Cancer Institute, 1066 CX Amsterdam, The Netherlands; (K.M.); (K.G.S.); (L.J.W.B.); (P.S.); (H.v.B.); (G.A.M.)
| | - Kris G. Samsom
- Department of Pathology, The Netherlands Cancer Institute, 1066 CX Amsterdam, The Netherlands; (K.M.); (K.G.S.); (L.J.W.B.); (P.S.); (H.v.B.); (G.A.M.)
| | - Linda J.W. Bosch
- Department of Pathology, The Netherlands Cancer Institute, 1066 CX Amsterdam, The Netherlands; (K.M.); (K.G.S.); (L.J.W.B.); (P.S.); (H.v.B.); (G.A.M.)
| | - Petur Snaebjornsson
- Department of Pathology, The Netherlands Cancer Institute, 1066 CX Amsterdam, The Netherlands; (K.M.); (K.G.S.); (L.J.W.B.); (P.S.); (H.v.B.); (G.A.M.)
| | - Hester van Boven
- Department of Pathology, The Netherlands Cancer Institute, 1066 CX Amsterdam, The Netherlands; (K.M.); (K.G.S.); (L.J.W.B.); (P.S.); (H.v.B.); (G.A.M.)
| | - Paul Roepman
- Hartwig Medical Foundation, 1098 XH Amsterdam, The Netherlands;
| | - Lizet E. van der Kolk
- Family Cancer Clinic, Netherlands Cancer Institute, 1066 CX Amsterdam, The Netherlands;
| | - Winan J. van Houdt
- Department of Surgical Oncology, Netherlands Cancer Institute, 1066 CX Amsterdam, The Netherlands;
| | | | - Gerrit A. Meijer
- Department of Pathology, The Netherlands Cancer Institute, 1066 CX Amsterdam, The Netherlands; (K.M.); (K.G.S.); (L.J.W.B.); (P.S.); (H.v.B.); (G.A.M.)
| | - Emile E. Voest
- Department of Molecular Oncology, The Netherlands Cancer Institute, 1066 CX Amsterdam, The Netherlands;
- Oncode Institute, 3521 AL Utrecht, The Netherlands
- Department of Medical Oncology, Netherlands Cancer Institute, 1066 CX Amsterdam, The Netherlands;
| |
Collapse
|
19
|
Incorvaia L, Badalamenti G, Fanale D, Vincenzi B, Luca ID, Algeri L, Barraco N, Brando C, Bonasera A, Bono M, Castiglia M, Cancelliere D, Cani M, Rita Corsini L, Fiorino A, Galvano A, Pedone E, Perez A, Pivetti A, Graceffa G, Pantuso G, Cabibi D, Russo A, Bazan V. Not all KIT 557/558 codons mutations have the same prognostic influence on recurrence-free survival: breaking the exon 11 mutations in gastrointestinal stromal tumors (GISTs). Ther Adv Med Oncol 2021; 13:17588359211049779. [PMID: 34616493 PMCID: PMC8488518 DOI: 10.1177/17588359211049779] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2021] [Accepted: 09/08/2021] [Indexed: 11/17/2022] Open
Abstract
Background: Although the gastrointestinal stromal tumor (GIST) genotype is not currently
included in risk-stratification systems, a growing body of evidence shows
that the pathogenic variant (PV) type and codon location hold a strong
prognostic influence on recurrence-free survival (RFS). This information has
particular relevance in the adjuvant setting, where an accurate
prognostication could help to better identify high-risk tumors and guide
clinical decision-making. Materials and Methods: Between January 2005 and December 2020, 96 patients with completely resected
GISTs harboring a KIT proto-oncogene receptor tyrosine kinase
(KIT) exon 11 PV were included in the study. We
analyzed the type and codon location of the PV according to
clinicopathological characteristics and clinical outcome; the metastatic
sites in relapsed patients were also investigated. Results: Tumors harboring a KIT exon 11 deletion or
deletion/insertion involving the 557 and/or 558 codons, showed a more
aggressive clinical behavior compared with tumors carrying
deletion/deletion/insertion in other codons, or tumors with
duplication/insertion/single-nucleotide variant (SNV) (7-year RFS: 50%
versus 73.1% versus 88.2%,
respectively; p < 0.001). Notably, among 18 relapsed
patients with 557 and/or 558 deletion or deletion/insertion, 14 patients
(77.8%) harbored deletions simultaneously involving 557 and 558 codons,
while only 4 patients (22.2%) harbored deletions involving only 1 of the
557/558 codons. Thus, when 557 or 558 deletions occurred separately, the
tumor showed a prognostic behavior similar to the GIST carrying deletions
outside the 557/558 position. Remarkably, patients with GISTs stratified as
intermediate risk, but carrying the 557/558 deletion, showed a similar
outcome to the high-risk patients with tumors harboring deletions in codons
other than 557/558, or duplication/insertion/SNV. Conclusion: Our data support the inclusion of the PV type and codon location in routine
risk prediction models, and suggest that intermediate-risk patients whose
GISTs harbor 557/558 deletions may also need to be treated with adjuvant
imatinib like the high-risk patients.
Collapse
Affiliation(s)
- Lorena Incorvaia
- Department of Biomedicine, Neuroscience and Advanced Diagnostics (Bi.N.D.), Section of Medical Oncology, University of Palermo, Via del Vespro 129, Palermo, 90127, Italy
| | - Giuseppe Badalamenti
- Department of Surgical, Oncological and Oral Sciences, Section of Medical Oncology, University of Palermo, Palermo, Italy
| | - Daniele Fanale
- Department of Surgical, Oncological and Oral Sciences, Section of Medical Oncology, University of Palermo, Palermo, Italy
| | - Bruno Vincenzi
- Department of Medical Oncology, Biomedical Campus, University of Rome, Rome, Italy
| | - Ida De Luca
- Department of Surgical, Oncological and Oral Sciences, Section of Medical Oncology, University of Palermo, Palermo, Italy
| | - Laura Algeri
- Department of Surgical, Oncological and Oral Sciences, Section of Medical Oncology, University of Palermo, Palermo, Italy
| | - Nadia Barraco
- Department of Surgical, Oncological and Oral Sciences, Section of Medical Oncology, University of Palermo, Palermo, Italy
| | - Chiara Brando
- Department of Surgical, Oncological and Oral Sciences, Section of Medical Oncology, University of Palermo, Palermo, Italy
| | - Annalisa Bonasera
- Department of Surgical, Oncological and Oral Sciences, Section of Medical Oncology, University of Palermo, Palermo, Italy
| | - Marco Bono
- Department of Surgical, Oncological and Oral Sciences, Section of Medical Oncology, University of Palermo, Palermo, Italy
| | - Marta Castiglia
- Department of Surgical, Oncological and Oral Sciences, Section of Medical Oncology, University of Palermo, Palermo, Italy
| | - Daniela Cancelliere
- Department of Surgical, Oncological and Oral Sciences, Section of Medical Oncology, University of Palermo, Palermo, Italy
| | - Massimiliano Cani
- Department of Surgical, Oncological and Oral Sciences, Section of Medical Oncology, University of Palermo, Palermo, Italy
| | - Lidia Rita Corsini
- Department of Surgical, Oncological and Oral Sciences, Section of Medical Oncology, University of Palermo, Palermo, Italy
| | - Alessia Fiorino
- Department of Surgical, Oncological and Oral Sciences, Section of Medical Oncology, University of Palermo, Palermo, Italy
| | - Antonio Galvano
- Department of Surgical, Oncological and Oral Sciences, Section of Medical Oncology, University of Palermo, Palermo, Italy
| | - Erika Pedone
- Department of Surgical, Oncological and Oral Sciences, Section of Medical Oncology, University of Palermo, Palermo, Italy
| | - Alessandro Perez
- Department of Surgical, Oncological and Oral Sciences, Section of Medical Oncology, University of Palermo, Palermo, Italy
| | - Alessia Pivetti
- Department of Surgical, Oncological and Oral Sciences, Section of Medical Oncology, University of Palermo, Palermo, Italy
| | - Giuseppa Graceffa
- Department of Surgical, Oncological and Oral Sciences, Section of General and Oncological Surgery, University of Palermo, Palermo, Italy
| | - Gianni Pantuso
- Department of Surgical, Oncological and Oral Sciences, Section of General and Oncological Surgery, University of Palermo, Palermo, Italy
| | - Daniela Cabibi
- Department of Health Promotion, Mother and Child Care, University of Palermo, Palermo, Italy
| | - Antonio Russo
- Department of Surgical, Oncological and Oral Sciences, Section of Medical Oncology, University of Palermo, Palermo, Italy
| | - Viviana Bazan
- Department of Biomedicine, Neuroscience and Advanced Diagnostics (Bi.N.D.), Section of Medical Oncology, University of Palermo, Palermo, Italy
| |
Collapse
|
20
|
Torrence D, Xie Z, Zhang L, Chi P, Antonescu CR. Gastrointestinal stromal tumors with BRAF gene fusions. A report of two cases showing low or absent KIT expression resulting in diagnostic pitfalls. Genes Chromosomes Cancer 2021; 60:789-795. [PMID: 34398495 DOI: 10.1002/gcc.22991] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Revised: 08/12/2021] [Accepted: 08/13/2021] [Indexed: 01/02/2023] Open
Abstract
Although most gastrointestinal stromal tumors (GISTs) exhibit activating mutations in either KIT or PDGFRA, rare cases have shown to be driven by gene fusions involving kinases, mainly involving NTRK3, and rarely BRAF or FGFR1. BRAF gene rearrangements have been described in only two patients to date, as separate case reports. In addition, BRAF V600E mutation is an uncommon but established oncogenic pathway in GIST. In this report, we describe two new GIST cases harboring novel BRAF fusion genes, arising in two young-adult women (37 and 40 years of age) in the small bowel and distal esophagus, both with a spindle cell phenotype. The small bowel GIST measured 2.8 cm and showed a high cellularity and a mitotic rate of 20/50 HPFs, while the esophageal lesion measured 7 cm and 1/50 HPFs. Immunohistochemically, both tumors showed diffuse reactivity for DOG1, while KIT/CD117 was weakly positive in the small bowel GIST and completely negative in the esophageal tumor. Based on these findings, the latter case was misinterpreted as a low-grade myxoid leiomyosarcoma, as it showed a myxoid stroma, reactivity for SMA and focal positivity for desmin. Archer FusionPlex revealed a fusion between BRAF with either AGAP3 or MKRN1 gene partners. Moreover, MSK-IMPACT DNA targeted sequencing confirmed both fusions but did not identify additional mutations. In one case with available material, the BRAF gene rearrangement was also validated by FISH. The recognition of BRAF fusion-positive GISTs is critical as it may be associated with a low level of KIT expression and may result in diagnostic challenges with significant impact on therapeutic management. The clinical benefit with KIT inhibitors, such as imatinib, remains to be determined.
Collapse
Affiliation(s)
- Dianne Torrence
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, New York, USA
| | - Ziyu Xie
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, New York, USA
| | - Lei Zhang
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, New York, USA
| | - Ping Chi
- Human Oncology and Pathogenesis Program, Memorial Sloan Kettering Cancer Center, New York, New York, USA.,Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York, USA.,Department of Medicine, Weill Cornell Medical College, New York, New York, USA
| | - Cristina R Antonescu
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, New York, USA
| |
Collapse
|
21
|
Marin-Bejar O, Rogiers A, Dewaele M, Femel J, Karras P, Pozniak J, Bervoets G, Van Raemdonck N, Pedri D, Swings T, Demeulemeester J, Borght SV, Lehnert S, Bosisio F, van den Oord JJ, Bempt IV, Lambrechts D, Voet T, Bechter O, Rizos H, Levesque MP, Leucci E, Lund AW, Rambow F, Marine JC. Evolutionary predictability of genetic versus nongenetic resistance to anticancer drugs in melanoma. Cancer Cell 2021; 39:1135-1149.e8. [PMID: 34143978 DOI: 10.1016/j.ccell.2021.05.015] [Citation(s) in RCA: 65] [Impact Index Per Article: 21.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Revised: 02/17/2021] [Accepted: 05/20/2021] [Indexed: 12/13/2022]
Abstract
Therapy resistance arises from heterogeneous drug-tolerant persister cells or minimal residual disease (MRD) through genetic and nongenetic mechanisms. A key question is whether specific molecular features of the MRD ecosystem determine which of these two distinct trajectories will eventually prevail. We show that, in melanoma exposed to mitogen-activated protein kinase therapeutics, emergence of a transient neural crest stem cell (NCSC) population in MRD concurs with the development of nongenetic resistance. This increase relies on a glial cell line-derived neurotrophic factor-dependent signaling cascade, which activates the AKT survival pathway in a focal adhesion kinase (FAK)-dependent manner. Ablation of the NCSC population through FAK inhibition delays relapse in patient-derived tumor xenografts. Strikingly, all tumors that ultimately escape this treatment exhibit resistance-conferring genetic alterations and increased sensitivity to extracellular signal-regulated kinase inhibition. These findings identify an approach that abrogates the nongenetic resistance trajectory in melanoma and demonstrate that the cellular composition of MRD deterministically imposes distinct drug resistance evolutionary paths.
Collapse
Affiliation(s)
- Oskar Marin-Bejar
- Laboratory for Molecular Cancer Biology, Center for Cancer Biology, VIB, Leuven, Belgium; Laboratory for Molecular Cancer Biology, Department of Oncology, KU Leuven, Leuven, Belgium
| | - Aljosja Rogiers
- Laboratory for Molecular Cancer Biology, Center for Cancer Biology, VIB, Leuven, Belgium; Laboratory for Molecular Cancer Biology, Department of Oncology, KU Leuven, Leuven, Belgium
| | - Michael Dewaele
- Laboratory for Molecular Cancer Biology, Center for Cancer Biology, VIB, Leuven, Belgium; Laboratory for Molecular Cancer Biology, Department of Oncology, KU Leuven, Leuven, Belgium
| | - Julia Femel
- Ronald O. Perelman Department of Dermatology and Department of Pathology, NYU Grossman School of Medicine, New York, NY, USA
| | - Panagiotis Karras
- Laboratory for Molecular Cancer Biology, Center for Cancer Biology, VIB, Leuven, Belgium; Laboratory for Molecular Cancer Biology, Department of Oncology, KU Leuven, Leuven, Belgium
| | - Joanna Pozniak
- Laboratory for Molecular Cancer Biology, Center for Cancer Biology, VIB, Leuven, Belgium; Laboratory for Molecular Cancer Biology, Department of Oncology, KU Leuven, Leuven, Belgium
| | - Greet Bervoets
- Laboratory for Molecular Cancer Biology, Center for Cancer Biology, VIB, Leuven, Belgium; Laboratory for Molecular Cancer Biology, Department of Oncology, KU Leuven, Leuven, Belgium
| | - Nina Van Raemdonck
- Laboratory for Molecular Cancer Biology, Center for Cancer Biology, VIB, Leuven, Belgium; Laboratory for Molecular Cancer Biology, Department of Oncology, KU Leuven, Leuven, Belgium
| | - Dennis Pedri
- Laboratory for Molecular Cancer Biology, Center for Cancer Biology, VIB, Leuven, Belgium; Laboratory for Molecular Cancer Biology, Department of Oncology, KU Leuven, Leuven, Belgium
| | - Toon Swings
- VIB Technology Watch, Technology Innovation Lab, VIB, Leuven, Belgium
| | - Jonas Demeulemeester
- Laboratory of Reproductive Genomics, Department of Human Genetics, KU Leuven, Leuven, Belgium; Cancer Genomic Laboratory, The Francis Crick Institute, London, UK
| | | | | | - Francesca Bosisio
- Laboratory of Translational Cell and Tissue Research, Department of Pathology, KU Leuven and UZ Leuven, Leuven, Belgium
| | - Joost J van den Oord
- Laboratory of Translational Cell and Tissue Research, Department of Pathology, KU Leuven and UZ Leuven, Leuven, Belgium
| | | | - Diether Lambrechts
- Laboratory of Translational Genetics, Center for Cancer Biology, VIB, Leuven, Belgium; Laboratory of Translational Genetics, Center for Human Genetics, KU Leuven, Belgium
| | - Thierry Voet
- Laboratory of Reproductive Genomics, Department of Human Genetics, KU Leuven, Leuven, Belgium; KU Leuven Institute for Single Cell Omics, LISCO, KU Leuven, Leuven, Belgium
| | - Oliver Bechter
- Department of General Medical Oncology UZ Leuven, Belgium
| | - Helen Rizos
- Macquarie University, Sydney, NSW, Australia; Melanoma Institute Australia, Sydney, NSW, Australia
| | - Mitchell P Levesque
- Department of Dermatology, University of Zürich Hospital, University of Zürich, Zürich, Switzerland
| | - Eleonora Leucci
- Laboratory for RNA Cancer Biology, Department of Oncology, LKI, KU Leuven, Leuven, Belgium; Trace PDX Platform, Department of Oncology, LKI, KU Leuven, Leuven, Belgium
| | - Amanda W Lund
- Ronald O. Perelman Department of Dermatology and Department of Pathology, NYU Grossman School of Medicine, New York, NY, USA
| | - Florian Rambow
- Laboratory for Molecular Cancer Biology, Center for Cancer Biology, VIB, Leuven, Belgium; Laboratory for Molecular Cancer Biology, Department of Oncology, KU Leuven, Leuven, Belgium.
| | - Jean-Christophe Marine
- Laboratory for Molecular Cancer Biology, Center for Cancer Biology, VIB, Leuven, Belgium; Laboratory for Molecular Cancer Biology, Department of Oncology, KU Leuven, Leuven, Belgium.
| |
Collapse
|
22
|
Victoor J, Borght SV, Spans L, Lehnert S, Brems H, Laenen A, Vergote I, Van Gorp T, Van Nieuwenhuysen E, Han S, Timmerman S, Van Rompuy AS, Vanden Bempt I. Comprehensive immunomolecular profiling of endometrial carcinoma: A tertiary retrospective study. Gynecol Oncol 2021; 162:694-701. [PMID: 34253388 DOI: 10.1016/j.ygyno.2021.06.030] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Accepted: 06/28/2021] [Indexed: 02/06/2023]
Abstract
OBJECTIVE Combined immunohistochemical and molecular classification using the Proactive Molecular Risk Classifier for Endometrial Cancer (ProMisE) independently predicts prognosis in endometrial carcinoma (EC). As next-generation sequencing (NGS) is entering clinical practice, we evaluated whether more comprehensive immunomolecular profiling (CIMP), including NGS and extended immunohistochemical analysis, could further refine the current ProMisE classification. METHODS A series of 120 consecutive ECs, classified according to ProMisE, was stained immunohistochemically for CD3, CD8, PD-L1, beta-catenin and L1CAM. An in-house 96 gene NGS panel was performed on a subset of 44 ECs, representing the 4 ProMisE subgroups (DNA polymerase epsilon catalytic subunit exonuclease domain mutated (POLEmut), mismatch repair deficient (MMRd), p53 abnormal (p53 abn) and no specific molecular profile (NSMP) ECs). Cases harboring non-hotspot POLE variants were analyzed with Illumina TruSight Oncology 500 NGS panel (TSO500) as a surrogate for whole-exome sequencing. RESULTS Eight cases harbored POLE variants, half of which were hotspots. Using TSO500, non-hotspot POLE variants were classified as pathogenic (3) or variant of unknown significance (1). POLEmut and MMRd ECs typically showed higher numbers of CD3+/CD8+ tumor-infiltrating lymphocytes and higher PD-L1 expression in tumor-infiltrating immune cells. p53 abn ECs showed significantly higher L1CAM immunoreactivity and frequently harbored gene amplifications including HER2 (25%), but typically lacked ARID1A or PTEN variants. Beta-catenin-positivity and FGFR2 variants were predominantly found in NSMP ECs. CONCLUSIONS Our data show that CIMP adds significant value to EC characterization and may help to determine pathogenicity of non-hotspot POLE variants, encountered more frequently than expected in our series. In addition, CIMP may reveal ECs benefitting from immune checkpoint inhibition and allows upfront identification of targetable alterations, such as HER2 amplification in p53 abn ECs.
Collapse
Affiliation(s)
- Jasper Victoor
- Department of Pathology, University Hospitals Leuven, Leuven, Belgium
| | - Sara Vander Borght
- Department of Pathology, University Hospitals Leuven, Leuven, Belgium; Department of Human Genetics, University Hospitals Leuven, Leuven, Belgium
| | - Lien Spans
- Department of Human Genetics, University Hospitals Leuven, Leuven, Belgium
| | - Stefan Lehnert
- Department of Human Genetics, University Hospitals Leuven, Leuven, Belgium
| | - Hilde Brems
- Department of Human Genetics, University Hospitals Leuven, Leuven, Belgium
| | - Annouschka Laenen
- KU Leuven, Biostatistics and Statistical Bioinformatics Centre, Leuven, Belgium
| | - Ignace Vergote
- Department of Gynecology and Obstetrics, Division of Gynecological Oncology, University Hospitals Leuven, Leuven, Belgium
| | - Toon Van Gorp
- Department of Gynecology and Obstetrics, Division of Gynecological Oncology, University Hospitals Leuven, Leuven, Belgium
| | - Els Van Nieuwenhuysen
- Department of Gynecology and Obstetrics, Division of Gynecological Oncology, University Hospitals Leuven, Leuven, Belgium
| | - Sileny Han
- Department of Gynecology and Obstetrics, Division of Gynecological Oncology, University Hospitals Leuven, Leuven, Belgium
| | - Stefan Timmerman
- Department of Gynecology and Obstetrics, Division of Gynecological Oncology, University Hospitals Leuven, Leuven, Belgium
| | - Anne-Sophie Van Rompuy
- Department of Pathology, University Hospitals Leuven, Leuven, Belgium; Laboratory of Translational Cell & Tissue Research, Department of Imaging and Pathology, KU Leuven - University of Leuven, Leuven, Belgium.
| | | |
Collapse
|
23
|
Abstract
PURPOSE OF REVIEW The current article revisits the most recent advances that occurred in the field of gastrointestinal stromal tumor (GIST) therapeutics. RECENT FINDINGS GIST is driven by the oncogenic activation of KIT or PDGFRA receptor tyrosine kinases, and agents targeting these receptors lead to substantial benefit throughout the entire course of the disease. Two new drugs were approved in 2020. On one hand, ripretinib obtained the regulatory approval for the treatment of GIST patients after progression to all standard treatments. On the other hand, avapritinib became the first agent ever displaying activity in GIST driven by the multiresistant PDGFRA D842V mutation. The addition of both drugs to GIST therapeutics constitutes a remarkable milestone, particularly considering that the last agent approved was back in 2012. Similarly, the recent identification of neurotrophic tyrosine receptor kinase (NTRK) fusions in a subset of KIT/PDGFRA wild-type GISTs led to an open window for tailored treatment using specific NTRK inhibitors. Finally, multiple efforts have been made toward the clinical implementation of circulating tumor DNA evaluation to guide clinical decisions in GIST. SUMMARY GIST has been consolidated over the years as a paradigmatic model in personalized medicine for the successful development of novel therapeutic strategies through targeted inhibition of oncogenic drivers.
Collapse
Affiliation(s)
- César Serrano
- Department of Medical Oncology, Vall d'Hebron University Hospital
- Sarcoma Translational Research Laboratory, Vall d'Hebron Institute of Oncology (VHIO), Barcelona, Spain
| |
Collapse
|
24
|
Recent Progress and Challenges in the Diagnosis and Treatment of Gastrointestinal Stromal Tumors. Cancers (Basel) 2021; 13:cancers13133158. [PMID: 34202544 PMCID: PMC8268322 DOI: 10.3390/cancers13133158] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Revised: 06/18/2021] [Accepted: 06/22/2021] [Indexed: 12/31/2022] Open
Abstract
Simple Summary Gastrointestinal stromal tumors (GIST) are potentially malignant tumors and require evidence-based surgical and/or medical treatment. Laparoscopy has similar safety and prognostic outcomes to those of laparotomy and is currently a standard procedure for localized GISTs. However, surgery for gastric GISTs less than 2 cm may be re-evaluated due to the indolent nature of the GIST and other competing risks among GIST patients. A work-up with endoscopy and endoscopic ultrasonography as well as endoscopic or percutaneous biopsy is important for the preoperative diagnosis of GISTs. Medical treatment with tyrosine kinase inhibitors is the mainstay for recurrent/metastatic GISTs. The activity of an individual drug is well correlated with gene alterations, and, in the era of precision medicine, cancer genome profiling should be considered before medical treatment. Abstract Gastrointestinal stromal tumors (GISTs) are the most frequent malignant mesenchymal tumors in the gastrointestinal tract. The clinical incidence of GISTs is estimated 10/million/year; however, the true incidence is complicated by frequent findings of tiny GISTs, of which the natural history is unknown. The initial work-up with endoscopy and endoscopic ultrasonography plays important roles in the differential diagnosis of GISTs. Surgery is the only modality for the permanent cure of localized GISTs. In terms of safety and prognostic outcomes, laparoscopy is similar to laparotomy for GIST treatment, including tumors larger than 5 cm. GIST progression is driven by mutations in KIT or PDGFRA or by other rare gene alterations, all of which are mutually exclusive. Tyrosine kinase inhibitors (TKIs) are the standard therapy for metastatic/recurrent GISTs. Molecular alterations are the most reliable biomarkers for TKIs and for other drugs, such as NTRK inhibitors. The pathological and genetic diagnosis prior to treatment has been challenging; however, a newly developed endoscopic device may be useful for diagnosis. In the era of precision medicine, cancer genome profiling by targeted gene panel analysis may enable potential targeted therapy even for GISTs without KIT or PDGFRA mutations.
Collapse
|
25
|
Type and Gene Location of KIT Mutations Predict Progression-Free Survival to First-Line Imatinib in Gastrointestinal Stromal Tumors: A Look into the Exon. Cancers (Basel) 2021; 13:cancers13050993. [PMID: 33673554 PMCID: PMC7956844 DOI: 10.3390/cancers13050993] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Revised: 02/12/2021] [Accepted: 02/19/2021] [Indexed: 12/14/2022] Open
Abstract
Simple Summary Although effective in the majority of patients, the progression-free survival (PFS) to imatinib treatment can vary widely in effectiveness. Based on the known predictive role of tyrosine kinase (KIT) and platelet-derived growth factor receptor α (PDGRA) tumor genotypes, the differential clinical response to first-line imatinib treatment might be related to the different types and gene locations of the mutations. In our study, metastatic patients with gastrointestinal stromal tumors (GIST)-carrying KIT exon 11 deletion or a deletion/insertion involving codons 557/558 showed significantly shorter PFS to imatinib compared with those with deletion in codons other than 557/558 and patients with exon 11 duplication, insertion or single nucleotide variants (SNVs). Conversely, the latter subgroup showed the longest PFS first-line to imatinib. These results highlight the predictive role of pathogenic variant (PV) type and codon location in GIST, and can support stratification via mutational status in future clinical trials. Abstract In previous studies on localized GISTs, KIT exon 11 deletions and mutations involving codons 557/558 showed an adverse prognostic influence on recurrence-free survival. In the metastatic setting, there are limited data on how mutation type and codon location might contribute to progression-free survival (PFS) variability to first-line imatinib treatment. We analyzed the type and gene location of KIT and PDGFRA mutations for 206 patients from a GIST System database prospectively collected at an Italian reference center between January 2005 and September 2020. By describing the mutational landscape, we focused on clinicopathological characteristics according to the critical mutations and investigated the predictive role of type and gene location of the KIT exon 11 mutations in metastatic patients treated with first-line imatinib. Our data showed a predictive impact of KIT exon 11 pathogenic variant on PFS to imatinib treatment: patients with deletion or insertion/deletion (delins) in 557/558 codons had a shorter PFS (median PFS: 24 months) compared to the patients with a deletion in other codons, or duplication/insertion/SNV (median PFS: 43 and 49 months, respectively) (p < 0.001). These results reached an independent value in the multivariate model, which showed that the absence of exon 11 deletions or delins 557/558, the female gender, primitive tumor diameter (≤5 cm) and polymorphonuclear leucocytosis (>7.5 109/L) were significant prognostic factors for longer PFS. Analysis of the predictive role of PDGFRA PVs showed no significant results. Our results also confirm the aggressive biology of 557/558 deletions/delins in the metastatic setting and allow for prediction at the baseline which GIST patients would develop resistance to first-line imatinib treatment earlier.
Collapse
|
26
|
Gastrointestinal Stromal Tumors (GISTs): Novel Therapeutic Strategies with Immunotherapy and Small Molecules. Int J Mol Sci 2021; 22:ijms22020493. [PMID: 33419029 PMCID: PMC7825300 DOI: 10.3390/ijms22020493] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 01/03/2021] [Accepted: 01/04/2021] [Indexed: 02/08/2023] Open
Abstract
Gastrointestinal stromal tumors (GISTs) are the most common types of malignant mesenchymal tumors in the gastrointestinal tract, with an estimated incidence of 1.5/100.000 per year and 1–2% of gastrointestinal neoplasms. About 75–80% of patients have mutations in the KIT gene in exons 9, 11, 13, 14, 17, and 5–10% of patients have mutations in the platelet-derived growth factor receptor a (PDGFRA) gene in exons 12, 14, 18. Moreover, 10–15% of patients have no mutations and are classified as wild type GIST. The treatment for metastatic or unresectable GISTs includes imatinib, sunitinib, and regorafenib. So far, GIST therapies have raised great expectations and offered patients a better quality of life, but increased pharmacological resistance to tyrosine kinase inhibitors is often observed. New treatment options have emerged, with ripretinib, avapritinib, and cabozantinib getting approvals for these tumors. Nowadays, immune checkpoint inhibitors form a new landscape in cancer therapeutics and have already shown remarkable responses in various tumors. Studies in melanoma, non-small-cell lung cancer, and renal cell carcinoma are very encouraging as these inhibitors have increased survival rates. The purpose of this review is to present alternative approaches for the treatment of the GIST patients, such as combinations of immunotherapy and novel inhibitors with traditional therapies (tyrosine kinase inhibitors).
Collapse
|