1
|
Inoue C, Miki Y, Saito-Koyama R, Okada Y, Sasano H, Suzuki T. Dipeptidyl peptidase 4-positive cancer-associated fibroblasts enhance lung adenocarcinoma growth. Pathol Res Pract 2024; 260:155418. [PMID: 38908333 DOI: 10.1016/j.prp.2024.155418] [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: 02/01/2024] [Revised: 06/13/2024] [Accepted: 06/19/2024] [Indexed: 06/24/2024]
Abstract
Cancer-associated fibroblasts (CAFs) are a heterogeneous population of fibroblasts with various features in the cancer stroma and have been reported to influence cancer progression through cell-cell interactions in various types of malignancies, including lung adenocarcinoma (LUAD). Dipeptidyl peptidase 4 (DPP4) is a transmembrane protein with serine protease activity and is involved in the progression of tumors, metabolic diseases, and autoimmune diseases. In the present study, we focused on the role of DPP4-positive CAFs in LUAD. Immunohistochemistry revealed that 38 of 89 LUAD patients showed DPP4 expression in the fibrous stroma, and patients harboring DPP4-positive CAFs were more often male, had a higher Brinkman index, and had a higher Ki-67 labeling index of tumor cells than those with DPP4-negative CAFs. DPP4-positivity was associated with the expression of other CAF markers, α-SMA, periostin, and podoplanin, as well as a cellular senescence marker, p16. In the in vitro study, conditioned media collected from pulmonary fibroblast (OUS-11, HPF, and HPF-C)-induced overexpression of DPP4 significantly promoted the proliferation of LUAD cells (A549 and PC-9) and increased the expression levels of MCP-1, IL-8, IL-6, and GCSF in the media compared to those in controls. In addition, OUS-11 overexpression in DPP4 overexpression increased periostin expression. In conclusion, DPP4-positive CAFs could promote lung adenocarcinoma cell growth by producing soluble factors, and DPP4 inhibition may inhibit cancer progression.
Collapse
Affiliation(s)
- Chihiro Inoue
- Department of Anatomic Pathology, Tohoku University Graduate School of Medicine, Japan.
| | - Yasuhiro Miki
- Department of Anatomic Pathology, Tohoku University Graduate School of Medicine, Japan
| | - Ryoko Saito-Koyama
- Department of Pathology, National Hospital Organization, Sendai Medical Center, Sendai, Japan
| | - Yoshinori Okada
- Department of Thoracic Surgery, Institute of Development, Aging and Cancer, Tohoku University, Sendai, Japan
| | - Hironobu Sasano
- Department of Anatomic Pathology, Tohoku University Graduate School of Medicine, Japan
| | - Takashi Suzuki
- Department of Anatomic Pathology, Tohoku University Graduate School of Medicine, Japan
| |
Collapse
|
2
|
Kitagawa S, Zenke Y, Taki T, Aokage K, Sakai T, Shibata Y, Izumi H, Nosaki K, Umemura S, Matsumoto S, Yoh K, Sakamoto N, Sakashita S, Kojima M, Tsuboi M, Goto K, Ishii G. Prognostic value of predominant subtype in pathological stage II-III lung adenocarcinoma with epidermal growth factor receptor mutation. Lung Cancer 2024; 188:107453. [PMID: 38160515 DOI: 10.1016/j.lungcan.2023.107453] [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: 10/25/2023] [Revised: 12/14/2023] [Accepted: 12/23/2023] [Indexed: 01/03/2024]
Abstract
OBJECTIVES This study extracted clinicopathological features associated with recurrence and evaluated the tumor microenvironment in consecutive cases with resected pathological stage II-III epidermal growth factor receptor (EGFR)-mutant lung adenocarcinoma (EGFR-mt). METHODS Between January 2008 and November 2018, we retrospectively reviewed 387 consecutive patients with pathological stage II-III lung adenocarcinoma who underwent surgical resection. We examined the EGFR mutation status (wild-type or mutant) and the evaluated clinicopathological features of all patients. In addition, tumor-promoting cancer-associated fibroblasts (CAFs), tumor-associated M2 macrophages (TAMs), and tumor-infiltrating lymphocytes (TILs) in the tumor microenvironment of EGFR-mt cells were evaluated by immunohistochemical analysis. RESULTS EGFR-mt (n = 124, 32 %) had more lymph node and pulmonary metastases than EGFR-wild-type lung adenocarcinoma (EGFR-wt) despite the smaller invasive component size. The disease-free survival (DFS) of patients with EGFR-mt tended to be shorter than that of patients with EGFR-wt. In the analysis according to the predominant subtype, EGFR-mt with papillary-predominant subtype had a significantly shorter 5-year DFS than that of EGFR-wt with papillary-predominant subtype (15.3 % vs. 44.1 %, p < 0.01). We observed no significant differences among the other subtypes. Multivariate analysis of DFS in patients with EGFR-mt revealed that male sex, pathological stage III, lymph node metastasis, pulmonary metastasis in the same lobe and non-acinar and non-lepidic predominant subtypes (papillary, solid, or micropapillary) were independent poor prognostic factors. Immunohistochemical analysis of EGFR-mt revealed that non-acinar- and non-lepidic-predominant subtypes were associated with a higher frequency of podoplanin-positive CAFs (36 % vs. 13 %, p = 0.01) and a higher median number of CD204-positive TAMs (61 vs. 49, p = 0.07) compared to the acinar- or lepidic-predominant subtypes. CONCLUSIONS Non-acinar and non-lepidic predominant subtypes were predictors of recurrence and had an aggressive tumor microenvironment in pathological stage II-III EGFR-mt.
Collapse
Affiliation(s)
- Shingo Kitagawa
- Department of Pathology and Clinical Laboratories, National Cancer Center Hospital East, Kashiwa, Japan; Department of Thoracic Oncology, National Cancer Center Hospital East, Kashiwa, Japan
| | - Yoshitaka Zenke
- Department of Thoracic Oncology, National Cancer Center Hospital East, Kashiwa, Japan
| | - Tetsuro Taki
- Department of Pathology and Clinical Laboratories, National Cancer Center Hospital East, Kashiwa, Japan
| | - Keiju Aokage
- Department of Thoracic Surgery, National Cancer Center Hospital East, Kashiwa, Japan
| | - Tetsuya Sakai
- Department of Thoracic Oncology, National Cancer Center Hospital East, Kashiwa, Japan
| | - Yuji Shibata
- Department of Thoracic Oncology, National Cancer Center Hospital East, Kashiwa, Japan
| | - Hiroki Izumi
- Department of Thoracic Oncology, National Cancer Center Hospital East, Kashiwa, Japan
| | - Kaname Nosaki
- Department of Thoracic Oncology, National Cancer Center Hospital East, Kashiwa, Japan
| | - Shigeki Umemura
- Department of Thoracic Oncology, National Cancer Center Hospital East, Kashiwa, Japan
| | - Shingo Matsumoto
- Department of Thoracic Oncology, National Cancer Center Hospital East, Kashiwa, Japan
| | - Kiyotaka Yoh
- Department of Thoracic Oncology, National Cancer Center Hospital East, Kashiwa, Japan
| | - Naoya Sakamoto
- Department of Pathology and Clinical Laboratories, National Cancer Center Hospital East, Kashiwa, Japan
| | - Shingo Sakashita
- Department of Pathology and Clinical Laboratories, National Cancer Center Hospital East, Kashiwa, Japan
| | - Motohiro Kojima
- Department of Pathology and Clinical Laboratories, National Cancer Center Hospital East, Kashiwa, Japan
| | - Masahiro Tsuboi
- Department of Thoracic Surgery, National Cancer Center Hospital East, Kashiwa, Japan
| | - Koichi Goto
- Department of Thoracic Oncology, National Cancer Center Hospital East, Kashiwa, Japan
| | - Genichiro Ishii
- Department of Pathology and Clinical Laboratories, National Cancer Center Hospital East, Kashiwa, Japan.
| |
Collapse
|
3
|
Batra H, Ding Q, Pandurengan R, Ibarguen H, Rabassedas NB, Sahin A, Wistuba I, Parra ER, Raso MG. Exploration of cancer associated fibroblasts phenotypes in the tumor microenvironment of classical and pleomorphic Invasive Lobular Carcinoma. Front Oncol 2023; 13:1281650. [PMID: 38192631 PMCID: PMC10772146 DOI: 10.3389/fonc.2023.1281650] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Accepted: 11/02/2023] [Indexed: 01/10/2024] Open
Abstract
As the second most common subtype of breast carcinoma, Invasive Lobular Carcinoma (ILC) microenvironment features have not been thoroughly explored. ILC has different histological subtypes and elucidating differences in their microenvironments could lead to a comprehensive development of cancer therapies. We designed a custom-made cancer associated fibroblast (CAFs) panel and used multiplex immunofluorescence to identify the differences in tumor microenvironment between Classic ILC and Pleomorphic ILC. Materials and methods Multiplex immunofluorescence were performed on formalin fixed paraffin embedded tissues using Opal-7 color kit. The antibodies used for phenotyping CAFs were Pan CK (AE1/AE3), CD45, A-SMA, FAP, S100, Thy-1 with optimized dilutions. The images were acquired and analyzed using Vectra 3.0 imaging system and InForm software respectively. Results We studied 19 different CAFs colocalized phenotypes in the tumor, stroma and overall tissue compartments between classic and pleomorphic ILC. Total A-SMA+, A-SMA+FAP+S100+ and A-SMA+S100+ CAFs demonstrated higher densities in classic ILC cases while FAP+S100+ and S-100+ CAFs were increased in the pleomorphic subtype samples. Conclusion Our study explores multiple CAFs phenotypes between classical and pleomorphic ILC. We showed that CAFs subset differ between Classic ILC and Pleomorphic ILC. A-SMA CAFs are more prevalent in the TME of classic ILCs whereas Pleomorphic ILCs are dominated by CAFs without A-SMA expression. This also iterates the importance of exploring this particular type of breast carcinoma in more detail, paving the way for meaningful translational research.
Collapse
Affiliation(s)
- Harsh Batra
- Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Qingqing Ding
- Department of Pathology, the University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Renganayaki Pandurengan
- Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Heladio Ibarguen
- Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Neus Bota Rabassedas
- Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Aysegul Sahin
- Department of Pathology, the University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Ignacio Wistuba
- Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Edwin Roger Parra
- Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Maria Gabriela Raso
- Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| |
Collapse
|
4
|
Inoue C, Miki Y, Suzuki T. New Perspectives on Sex Steroid Hormones Signaling in Cancer-Associated Fibroblasts of Non-Small Cell Lung Cancer. Cancers (Basel) 2023; 15:3620. [PMID: 37509283 PMCID: PMC10377312 DOI: 10.3390/cancers15143620] [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: 04/30/2023] [Revised: 06/30/2023] [Accepted: 07/10/2023] [Indexed: 07/30/2023] Open
Abstract
The importance of sex hormones, especially estrogen, in the pathogenesis of non-small-cell lung cancer (NSCLC) has attracted attention due to its high incidence among young adults and nonsmokers, especially those who are female. Cancer-associated fibroblasts (CAFs) reside in the cancer stroma and influence cancer growth, invasion, metastasis, and acquisition of drug resistance through interactions with cancer cells and other microenvironmental components. Hormone-mediated cell-cell interactions are classic cell-cell interactions and well-known phenomena in breast cancer and prostate cancer CAFs. In cancers of other organs, including NSCLC, the effects of CAFs on hormone-receptor expression and hormone production in cancer tissues have been reported; however, there are few such studies. Many more studies have been performed on breast and prostate cancers. Recent advances in technology, particularly single-cell analysis techniques, have led to significant advances in the classification and function of CAFs. However, the importance of sex hormones in cell-cell interactions of CAFs in NSCLC remains unclear. This review summarizes reports on CAFs in NSCLC and sex hormones in cancer and immune cells surrounding CAFs. Furthermore, we discuss the prospects of sex-hormone research involving CAFs in NSCLC.
Collapse
Affiliation(s)
- Chihiro Inoue
- Department of Anatomic Pathology, Tohoku University Graduate School of Medicine, Sendai 980-8575, Japan
| | - Yasuhiro Miki
- Department of Anatomic Pathology, Tohoku University Graduate School of Medicine, Sendai 980-8575, Japan
| | - Takashi Suzuki
- Department of Anatomic Pathology, Tohoku University Graduate School of Medicine, Sendai 980-8575, Japan
| |
Collapse
|
5
|
Wong KY, Cheung AH, Chen B, Chan WN, Yu J, Lo KW, Kang W, To KF. Cancer-associated fibroblasts in nonsmall cell lung cancer: From molecular mechanisms to clinical implications. Int J Cancer 2022; 151:1195-1215. [PMID: 35603909 PMCID: PMC9545594 DOI: 10.1002/ijc.34127] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Revised: 05/08/2022] [Accepted: 05/12/2022] [Indexed: 11/14/2022]
Abstract
Lung cancer is the common and leading cause of cancer death worldwide. The tumor microenvironment has been recognized to be instrumental in tumorigenesis. To have a deep understanding of the molecular mechanism of nonsmall cell lung carcinoma (NSCLC), cancer-associated fibroblasts (CAFs) have gained increasing research interests. CAFs belong to the crucial and dominant cell population in the tumor microenvironment to support the cancer cells. The interplay and partnership between cancer cells and CAFs contribute to each stage of tumorigenesis. CAFs exhibit prominent heterogeneity and secrete different kinds of cytokines and chemokines, growth factors and extracellular matrix proteins involved in cancer cell proliferation, invasion, metastasis and chemoresistance. Many studies focused on the protumorigenic functions of CAFs, yet many challenges about the heterogeneity of CAFS remain unresolved. This review comprehensively summarized the tumor-promoting role and molecular mechanisms of CAFs in NSCLC, including their origin, phenotypic changes and heterogeneity and their functional roles in carcinogenesis. Meanwhile, we also highlighted the updated molecular classifications based on the molecular features and functional roles of CAFs. With the development of cutting-edge platforms and further investigations of CAFs, novel therapeutic strategies for accurately targeting CAFs in NSCLC may be developed based on the increased understanding of the relevant molecular mechanisms.
Collapse
Affiliation(s)
- Kit Yee Wong
- Department of Anatomical and Cellular Pathology, State Key Laboratory of Translational OncologyPrince of Wales Hospital, The Chinese University of Hong KongHong KongSARChina
- Institute of Digestive Disease, State Key Laboratory of Digestive Disease, The Chinese University of Hong KongHong KongSARChina
- Li Ka Shing Institute of Health Science, Sir Y.K. Pao Cancer Center, The Chinese University of Hong KongHong KongSARChina
| | - Alvin Ho‐Kwan Cheung
- Department of Anatomical and Cellular Pathology, State Key Laboratory of Translational OncologyPrince of Wales Hospital, The Chinese University of Hong KongHong KongSARChina
- Institute of Digestive Disease, State Key Laboratory of Digestive Disease, The Chinese University of Hong KongHong KongSARChina
- Li Ka Shing Institute of Health Science, Sir Y.K. Pao Cancer Center, The Chinese University of Hong KongHong KongSARChina
| | - Bonan Chen
- Department of Anatomical and Cellular Pathology, State Key Laboratory of Translational OncologyPrince of Wales Hospital, The Chinese University of Hong KongHong KongSARChina
- Institute of Digestive Disease, State Key Laboratory of Digestive Disease, The Chinese University of Hong KongHong KongSARChina
- Li Ka Shing Institute of Health Science, Sir Y.K. Pao Cancer Center, The Chinese University of Hong KongHong KongSARChina
| | - Wai Nok Chan
- Department of Anatomical and Cellular Pathology, State Key Laboratory of Translational OncologyPrince of Wales Hospital, The Chinese University of Hong KongHong KongSARChina
- Institute of Digestive Disease, State Key Laboratory of Digestive Disease, The Chinese University of Hong KongHong KongSARChina
- Li Ka Shing Institute of Health Science, Sir Y.K. Pao Cancer Center, The Chinese University of Hong KongHong KongSARChina
| | - Jun Yu
- Institute of Digestive Disease, State Key Laboratory of Digestive Disease, The Chinese University of Hong KongHong KongSARChina
- Department of Medicine and TherapeuticsThe Chinese University of Hong KongHong KongSARChina
| | - Kwok Wai Lo
- Department of Anatomical and Cellular Pathology, State Key Laboratory of Translational OncologyPrince of Wales Hospital, The Chinese University of Hong KongHong KongSARChina
- Institute of Digestive Disease, State Key Laboratory of Digestive Disease, The Chinese University of Hong KongHong KongSARChina
- Li Ka Shing Institute of Health Science, Sir Y.K. Pao Cancer Center, The Chinese University of Hong KongHong KongSARChina
| | - Wei Kang
- Department of Anatomical and Cellular Pathology, State Key Laboratory of Translational OncologyPrince of Wales Hospital, The Chinese University of Hong KongHong KongSARChina
- Institute of Digestive Disease, State Key Laboratory of Digestive Disease, The Chinese University of Hong KongHong KongSARChina
- Li Ka Shing Institute of Health Science, Sir Y.K. Pao Cancer Center, The Chinese University of Hong KongHong KongSARChina
| | - Ka Fai To
- Department of Anatomical and Cellular Pathology, State Key Laboratory of Translational OncologyPrince of Wales Hospital, The Chinese University of Hong KongHong KongSARChina
- Institute of Digestive Disease, State Key Laboratory of Digestive Disease, The Chinese University of Hong KongHong KongSARChina
- Li Ka Shing Institute of Health Science, Sir Y.K. Pao Cancer Center, The Chinese University of Hong KongHong KongSARChina
| |
Collapse
|
6
|
Yanagawa N, Sugai M, Shikanai S, Sugimoto R, Osakabe M, Uesugi N, Saito H, Maemondo M, Sugai T. High expression of fibroblast-activating protein is a prognostic marker in non-small cell lung carcinoma. Thorac Cancer 2022; 13:2377-2384. [PMID: 35818720 PMCID: PMC9376177 DOI: 10.1111/1759-7714.14579] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Revised: 06/21/2022] [Accepted: 06/23/2022] [Indexed: 12/13/2022] Open
Abstract
Background Fibroblast‐activating protein (FAP) is expressed in cancer‐associated fibroblasts (CAFs) in many human carcinomas and in some types of carcinoma cells. Here, we examined the proportion of FAP protein expression in non‐small cell lung carcinoma (NSCLC) and investigated the correlation of FAP expression with clinicopathological background. Methods In total, 344 NSCLC tissues were examined. Tissue microarrays were constructed, and FAP expression was analyzed using immunohistochemistry. The status of FAP expression in tumor cells and CAFs was correlated with clinicopathological background, molecular features, and patient outcomes. Results A total of 280 patients (81.4%) had low FAP expression, and 64 patients (18.6%) had high FAP expression in tumor cells. In CAFs, 230 patients (66.9%) had low FAP expression, and 114 patients (33.1%) had high FAP expression. In multivariate analyses, high FAP expression in tumor cells was an independent predictive factor of both overall survival (OS; hazard ratio [HR] = 2.57, 95% confidence interval [CI]: 1.49–4.42, p < 0.001) and recurrence‐free survival (RFS; HR = 2.13, 95% CI: 1.38–3.29, p < 0.001). Based on combinations of FAP expression in tumor cells and CAFs, patients with LowT/LowCAFs had better OS and RFS than did those in the other subgroups. By contrast, patients with HighT/HighCAFs had poor OS and RFS compared with those in the other subgroups. Conclusions Overall, FAP expression in tumor cells and the combination FAP expression in tumor cells and CAFs were strongly associated with patient survival and may be useful predictive biomarkers for patient outcomes in NSCLC.
Collapse
Affiliation(s)
- Naoki Yanagawa
- Department of Molecular Diagnostic Pathology, Iwate Medical University, Shiwa-gun, Japan
| | - Mayu Sugai
- Department of Molecular Diagnostic Pathology, Iwate Medical University, Shiwa-gun, Japan
| | - Shunsuke Shikanai
- Department of Molecular Diagnostic Pathology, Iwate Medical University, Shiwa-gun, Japan
| | - Ryo Sugimoto
- Department of Molecular Diagnostic Pathology, Iwate Medical University, Shiwa-gun, Japan
| | - Mitsumasa Osakabe
- Department of Molecular Diagnostic Pathology, Iwate Medical University, Shiwa-gun, Japan
| | - Noriyuki Uesugi
- Department of Molecular Diagnostic Pathology, Iwate Medical University, Shiwa-gun, Japan
| | - Hajime Saito
- Department of Thoracic Surgery, Iwate Medical University, Shiwa-gun, Japan
| | - Makoto Maemondo
- Division of Pulmonary Medicine, Department of Internal Medicine, Iwate Medical University, Shiwa-gun, Japan
| | - Tamotsu Sugai
- Department of Molecular Diagnostic Pathology, Iwate Medical University, Shiwa-gun, Japan
| |
Collapse
|
7
|
Kreus M, Lehtonen S, Skarp S, Kaarteenaho R. Extracellular matrix proteins produced by stromal cells in idiopathic pulmonary fibrosis and lung adenocarcinoma. PLoS One 2021; 16:e0250109. [PMID: 33905434 PMCID: PMC8078755 DOI: 10.1371/journal.pone.0250109] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Accepted: 03/30/2021] [Indexed: 11/29/2022] Open
Abstract
Idiopathic pulmonary fibrosis (IPF) and lung cancer share common risk factors, epigenetic and genetic alterations, the activation of similar signaling pathways and poor survival. The aim of this study was to examine the gene expression profiles of stromal cells from patients with IPF and lung adenocarcinoma (ADC) as well as from normal lung. The gene expression levels of cultured stromal cells derived from non-smoking patients with ADC from the tumor (n = 4) and the corresponding normal lung (n = 4) as well as from patients with IPF (n = 4) were investigated with Affymetrix microarrays. The expression of collagen type IV alpha 1 chain, periostin as well as matrix metalloproteinase-1 and -3 in stromal cells and lung tissues were examined with quantitative real-time reverse transcriptase polymerase chain reaction and immunohistochemistry, respectively. Twenty genes were similarly up- or down-regulated in IPF and ADC compared to control, while most of the altered genes in IPF and ADC were differently expressed, including several extracellular matrix genes. Collagen type IV alpha 1 chain as well as matrix metalloproteinases-1 and -3 were differentially expressed in IPF compared to ADC. Periostin was up-regulated in both IPF and ADC in comparison to control. All studied factors were localized by immunohistochemistry in stromal cells within fibroblast foci in IPF and stroma of ADC. Despite the similarities found in gene expressions of IPF and ADC, several differences were also detected, suggesting that the molecular changes occurring in these two lung illnesses are somewhat different.
Collapse
Affiliation(s)
- Mervi Kreus
- Research Unit of Internal Medicine, University of Oulu, Oulu, Finland
- Medical Research Center Oulu, Oulu University Hospital, Oulu, Finland
- * E-mail:
| | - Siri Lehtonen
- Medical Research Center Oulu, Oulu University Hospital, Oulu, Finland
- Department of Obstetrics and Gynecology, Oulu University Hospital, Oulu, Finland
| | - Sini Skarp
- Northern Finland Birth Cohorts, Infrastructure for Population Studies, Faculty of Medicine, University of Oulu, Oulu, Finland
| | - Riitta Kaarteenaho
- Research Unit of Internal Medicine, University of Oulu, Oulu, Finland
- Medical Research Center Oulu, Oulu University Hospital, Oulu, Finland
| |
Collapse
|
8
|
Single-cell RNA sequencing reveals distinct tumor microenvironmental patterns in lung adenocarcinoma. Oncogene 2021; 40:6748-6758. [PMID: 34663877 PMCID: PMC8677623 DOI: 10.1038/s41388-021-02054-3] [Citation(s) in RCA: 70] [Impact Index Per Article: 23.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Revised: 09/16/2021] [Accepted: 09/30/2021] [Indexed: 12/24/2022]
Abstract
Recent developments in immuno-oncology demonstrate that not only cancer cells, but also the tumor microenvironment can guide precision medicine. A comprehensive and in-depth characterization of the tumor microenvironment is challenging since its cell populations are diverse and can be important even if scarce. To identify clinically relevant microenvironmental and cancer features, we applied single-cell RNA sequencing to ten human lung adenocarcinomas and ten normal control tissues. Our analyses revealed heterogeneous carcinoma cell transcriptomes reflecting histological grade and oncogenic pathway activities, and two distinct microenvironmental patterns. The immune-activated CP²E microenvironment was composed of cancer-associated myofibroblasts, proinflammatory monocyte-derived macrophages, plasmacytoid dendritic cells and exhausted CD8+ T cells, and was prognostically unfavorable. In contrast, the inert N³MC microenvironment was characterized by normal-like myofibroblasts, non-inflammatory monocyte-derived macrophages, NK cells, myeloid dendritic cells and conventional T cells, and was associated with a favorable prognosis. Microenvironmental marker genes and signatures identified in single-cell profiles had progonostic value in bulk tumor profiles. In summary, single-cell RNA profiling of lung adenocarcinoma provides additional prognostic information based on the microenvironment, and may help to predict therapy response and to reveal possible target cell populations for future therapeutic approaches.
Collapse
|