1
|
Zhang C, Yang L, Zhao W, Zhu H, Shi S, Chen S, Wang G, Li B, Zhao G. A heterogeneous tumor immune microenvironment of uncommon epidermal growth factor receptor mutant non-small cell lung cancer. Cancer Sci 2024. [PMID: 38890815 DOI: 10.1111/cas.16253] [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: 01/24/2024] [Revised: 05/31/2024] [Accepted: 06/05/2024] [Indexed: 06/20/2024] Open
Abstract
Common epidermal growth factor receptor (EGFR) mutations are usually not considered for immunotherapy in non-small cell lung cancer (NSCLC) due to poor efficacy. However, whether uncommon EGFR mutations are suitable for immunotherapy has not been thoroughly studied. Thus, we explored the tumor immune microenvironment (TME) features in uncommon EGFR mutant NSCLC. In this study, a total of 41 patients with EGFR mutations were included, the majority (85.4%) of whom were stage I. Among them, 22 patients harbored common mutations, while 19 patients presented with uncommon mutations. Compared with common mutations, uncommon mutations exhibited more infiltrating T cells and fewer M2 macrophages, upregulated expression of antigen processing and a presentation pathway. Unsupervised clustering based on the mIF profile identified two classes with heterogeneous TME in uncommon mutations. Class 1 featured the absence of PD-1+ cytotoxic T cell infiltration, and class 2 displayed a hotter TME because of the downregulated expression of hypoxia (p < 0.001), oxidative phosphorylation (p = 0.009), and transforming growth factor beta signaling (p = 0.01) pathways as well as increased expression of CTLA4 (p = 0.001) and PDCD1 (p = 0.004). The association of CTLA4 and PDCD1 with TME profiles was validated in a TCGA lung adenocarcinoma cohort with uncommon EGFR mutations. Our study reveals the distinct and heterogeneous TME features in uncommon EGFR mutant NSCLC.
Collapse
Affiliation(s)
- Chong Zhang
- Health Science Center, Ningbo University, Ningbo, China
- Department of Thoracic Surgery, Ningbo No.2 Hospital, Ningbo, China
| | - Liangwei Yang
- Department of Thoracic Surgery, Ningbo No.2 Hospital, Ningbo, China
| | - Weidi Zhao
- Department of Thoracic Surgery, Ningbo No.2 Hospital, Ningbo, China
| | - Huangkai Zhu
- Department of Thoracic Surgery, Ningbo No.2 Hospital, Ningbo, China
| | - Shuo Shi
- Burning Rock Biotech, Guangzhou, China
| | | | | | - Bing Li
- Burning Rock Biotech, Guangzhou, China
| | - Guofang Zhao
- Health Science Center, Ningbo University, Ningbo, China
- Department of Thoracic Surgery, Ningbo No.2 Hospital, Ningbo, China
| |
Collapse
|
2
|
Shi C, Ma J, Zhang T, Shi Y, Duan W, Huang D, Zhang H, Zeng Y. Genetic profile of Chinese patients with small bowel cancer categorized by anatomic location. BMC Med Genomics 2023; 16:289. [PMID: 37974218 PMCID: PMC10652443 DOI: 10.1186/s12920-023-01736-z] [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: 04/28/2023] [Accepted: 11/10/2023] [Indexed: 11/19/2023] Open
Abstract
BACKGROUND Small bowel cancer (SBC) is a very rare solid malignancy. Consequently, compared with other malignant gastrointestinal tumors, our knowledge regarding SBC, specifically its molecular attributes, remains limited. Herein, we aim to provide an overview of the gene characteristics of Chinese patients with SBC, We particularly focus on elucidating the genetic intricacies that differentiate SBC patients whose primary tumors originate in distinct anatomical regions within the small bowel. METHODS During the period ranging from February 2018 to December 2022, a total of 298 tumor samples were consecutively collected from Chinese patients diagnosed with small bowel cancer.. Next-generation sequencing (NGS) was performed to detect gene mutation, assess microsatellite instability (MSI), and evaluate tumor mutational burden (TMB). Additionally,, IHC was used to analyze the level of PD-L1 expression within the samples. RESULTS The outcomes of the next-generation sequencing (NGS) unveiled the predominant gene mutations observed in Chinese patients with small bowel cancer (SBC). The top ten gene mutations identified were as follows: TP53 (53%), KRAS (51%), APC (31%), SMAD4 (19%), VEGFA (15%), CDKN2A (15%), RAC1 (15%), LRP1B (14%), MGMT (14%, CD74 (13%). Subsequent analysis revealed disparities in the gene landscape between the cohort in this study and that of the Memorial Sloan Kettering Cancer Center (MSKCC), Notably, distinguishable mutational frequencies were identified in several genes, including ERBB2, FBXW7, PIK3CA, etc. which exhibited contrasting presence in both this cohort and the MSKCC cohort.. Furthermore, we noticed variations in the frequency of gene mutations among SBC patients depending on the specific anatomical site where the tumors originated within the small bowel. In addition, the distribution of patients with high microsatellite instability (MSI-H) and tumor mutational burden (TMB) levels varied among SBC patients with tumors originating from the duodenum, jejunum, and ileum. CONCLUSION Chinese patients with small bowel cancer exhibited a distinct genetic profile in comparison to other populations, highlighting a unique genetic landscape. Furthermore, noticeable disparities in the genetic landscape were observed between patients with cancer situated in the duodenum and those with cancer affecting other regions of the small bowel, this suggests that these patients should be treated differently.
Collapse
Affiliation(s)
- Chengmin Shi
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Kunming Medical University, No 295, Xichang Road, Kunming, Yunnan Province, 650032, P.R. China
| | - Junrui Ma
- School of Nursing, Yunnan University of Traditional Chinese Medicines, Kunming, Yunnan, 650504, P.R. China
| | - Tong Zhang
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Kunming Medical University, No 295, Xichang Road, Kunming, Yunnan Province, 650032, P.R. China
| | - Yanqiang Shi
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Kunming Medical University, No 295, Xichang Road, Kunming, Yunnan Province, 650032, P.R. China
| | - Weiming Duan
- The Medical Department, 3D Medicines Inc., Building 2, Block B, 158 XinJunhuan Street, Pujiang Hi-Tech Park, MinHang District, Shanghai, 201114, P.R. China
| | - Depei Huang
- The Medical Department, 3D Medicines Inc., Building 2, Block B, 158 XinJunhuan Street, Pujiang Hi-Tech Park, MinHang District, Shanghai, 201114, P.R. China
| | - Hushan Zhang
- The Medical Department, 3D Medicines Inc., Building 2, Block B, 158 XinJunhuan Street, Pujiang Hi-Tech Park, MinHang District, Shanghai, 201114, P.R. China.
- Zhaotong Health Vocational College, Zhaotong, Yunnan, 657000, P.R. China.
| | - Yujian Zeng
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Kunming Medical University, No 295, Xichang Road, Kunming, Yunnan Province, 650032, P.R. China.
| |
Collapse
|
3
|
Hu J, Huang D, Wang Y, Li D, Yang X, Fu Y, Du N, Zhao Y, Li X, Ma J, Hu Y. The efficacy of immune checkpoint inhibitors in advanced EGFR-Mutated non-small cell lung cancer after resistance to EGFR-TKIs: Real-World evidence from a multicenter retrospective study. Front Immunol 2022; 13:975246. [PMID: 36159795 PMCID: PMC9504865 DOI: 10.3389/fimmu.2022.975246] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Accepted: 08/11/2022] [Indexed: 11/15/2022] Open
Abstract
Background The efficacy of immune checkpoint inhibitors (ICIs) in pretreated EGFR-mutated non-small cell lung cancer (NSCLC) patients is controversial. We conducted this multicenter retrospective study to examine the efficacy of ICIs in a real world setting. Patients and methods We collected 116 consecutive NSCLC patients with sensitive EGFR mutations who received ICIs alone or in combination after failure to respond to EGFR tyrosine kinase inhibitors (EGFR-TKIs), and 99 patients were included for final analysis. The impacts of ICIs on the patients’ objective response rate (ORR), disease control rate (DCR), progression-free survival (PFS), and overall survival (OS) were assessed. The relationships between outcomes and clinical characteristics were analyzed. Results The ORR in patients with target lesions was 31.25% (95% CI: 22.18-41.52), and the DCR in all patients was 65.66% (95% CI: 55.44-74.91). The overall median PFS was 5.0 months (95% CI: 3.0-6.6), and the median OS was 15.9 months (95% CI: 10.8-23.8). The outcomes were better in patients receiving combination therapy with ECOG scores of 0-1 and no more than 2 lines of prior therapy, with a median PFS of 7.4 months (95% CI: 3.0-13.3) and a median OS of 29.0 months (95% CI: 11.7-NE). Primary EGFR mutation type and treatment mode were found to have a notable impact on clinical outcomes. Both median PFS and OS in patients with EGFR L858R mutation were significantly shorter than those in patients with EGFR exon 19 deletion (19del) (PFS: 2.5 versus 6.7 months, HR: 1.80, log-rank P=0.011; OS: 9.8 versus 26.9 months, HR: 2.48, log-rank P=0.002). Patients receiving combination therapy had notably longer median PFS and OS than those receiving monotherapy (PFS: 5.2 versus 3.0 months, HR: 0.54, log-rank P=0.020; OS: 19.0 versus 7.4 months, HR: 0.46, log-rank P=0.009). Conclusions Our study suggests that ICI-based combination therapy is a potential strategy for EGFR-mutated NSCLC patients after EGFR-TKI failure. The efficacy may differ according to EGFR subtypes.
Collapse
Affiliation(s)
- Jia Hu
- Department of Oncology, The Fifth Medical Center of PLA General Hospital, Beijing, China
- Department of Oncology, The Seventh Medical Center of PLA General Hospital, Beijing, China
| | - Di Huang
- Department of Oncology, The Fifth Medical Center of PLA General Hospital, Beijing, China
| | - Yanrong Wang
- Department of Oncology, The Fifth Medical Center of PLA General Hospital, Beijing, China
| | - Donghui Li
- Department of Oncology, The Fourth Medical Center of PLA General Hospital, Beijing, China
| | - Xuejiao Yang
- Department of Oncology, The Fifth Medical Center of PLA General Hospital, Beijing, China
| | - Yan Fu
- Department of Oncology, The Fifth Medical Center of PLA General Hospital, Beijing, China
- Department of Oncology, The Fourth Medical Center of PLA General Hospital, Beijing, China
| | - Nan Du
- Department of Oncology, The Fifth Medical Center of PLA General Hospital, Beijing, China
- Department of Oncology, The Fourth Medical Center of PLA General Hospital, Beijing, China
| | - Yan Zhao
- Department of Oncology, The Fifth Medical Center of PLA General Hospital, Beijing, China
| | - Xiaosong Li
- Department of Oncology, The Fifth Medical Center of PLA General Hospital, Beijing, China
- Department of Oncology, The Seventh Medical Center of PLA General Hospital, Beijing, China
- *Correspondence: Xiaosong Li, ; Junxun Ma, ; Yi Hu,
| | - Junxun Ma
- Department of Oncology, The Fifth Medical Center of PLA General Hospital, Beijing, China
- *Correspondence: Xiaosong Li, ; Junxun Ma, ; Yi Hu,
| | - Yi Hu
- Department of Oncology, The Fifth Medical Center of PLA General Hospital, Beijing, China
- Department of Oncology, The First Medical Center of PLA General Hospital, Beijing, China
- *Correspondence: Xiaosong Li, ; Junxun Ma, ; Yi Hu,
| |
Collapse
|
4
|
Chen Q, Shang X, Liu N, Ma X, Han W, Wang X, Liu Y. Features of patients with advanced EGFR-mutated non-small cell lung cancer benefiting from immune checkpoint inhibitors. Front Immunol 2022; 13:931718. [PMID: 35990690 PMCID: PMC9388930 DOI: 10.3389/fimmu.2022.931718] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Accepted: 07/11/2022] [Indexed: 11/13/2022] Open
Abstract
BackgroundAlthough immune checkpoint inhibitors (ICIs) generally show poor therapeutic efficacy in patients with epidermal growth factor receptor (EGFR) mutations, certain research indicate that a small proportion of these patients do respond to ICIs. The present study sought to identify the features of patients with EGFR mutations who might benefit from ICIs from multiple studies and discussed the optimal treatment paradigm for advanced non-small cell lung cancer (NSCLC) patients with EGFR mutations.MethodsThe profiles of 114 advanced NSCLC patients with EGFR mutations who received ICIs treatment were retrospectively reviewed. EGFR subtypes, programmed cell death ligand 1 (PD-L1) expression, and clinical characteristics regarding their impact on the efficacy of ICIs were investigated.ResultsPatients with major EGFR mutations (L858R or 19Del) had a shorter progression-free survival (PFS) and a lower objective response rate (ORR) as compared to patients with rare (20ins or G719X) and other EGFR mutations. Although not statistically significant, median overall survival (OS) tended to be longer in patients with negative (<1%) PD-L1 expression than with positive (≥1%) PD-L1 expression (15.61 vs. 7.40 months, p = 0.138). Median PFS and OS were significantly shorter in heavily treated patients (prior lines of therapy ≥3 lines vs. <3 lines: mPFS, 1.80 vs. 2.50 months, p = 0.003; mOS, 6.70 vs. 14.00 months, p = 0.031). ORR was also lower in patients who had received ≥3 prior lines of therapy compared to in those <3 prior lines of therapy (0.00% vs. 21.67%, p = 0.002).ConclusionPatients with major EGFR mutations showed poorer responses to ICIs than those with rare EGFR mutations. EGFR-mutated patients with lower PD-L1 expression showed a trend towards a longer OS after receiving ICIs. ICIs should be administered as early as possible to previously treated EGFR-mutated NSCLC patients. ICI-based combined therapies may be a direction for treatment of these patient subtypes in the future.
Collapse
Affiliation(s)
| | | | | | | | | | | | - Yanguo Liu
- *Correspondence: Xiuwen Wang, ; Yanguo Liu,
| |
Collapse
|