1
|
Han F, Chen S, Zhang K, Zhang K, Wang M, Wang P. Single-cell transcriptomic sequencing data reveal aberrant DNA methylation in SMAD3 promoter region in tumor-associated fibroblasts affecting molecular mechanism of radiosensitivity in non-small cell lung cancer. J Transl Med 2024; 22:288. [PMID: 38493128 PMCID: PMC10944599 DOI: 10.1186/s12967-024-05057-2] [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: 12/27/2023] [Accepted: 03/02/2024] [Indexed: 03/18/2024] Open
Abstract
OBJECTIVE Non-small cell lung cancer (NSCLC) often exhibits resistance to radiotherapy, posing significant treatment challenges. This study investigates the role of SMAD3 in NSCLC, focusing on its potential in influencing radiosensitivity via the ITGA6/PI3K/Akt pathway. METHODS The study utilized gene expression data from the GEO database to identify differentially expressed genes related to radiotherapy resistance in NSCLC. Using the GSE37745 dataset, prognostic genes were identified through Cox regression and survival analysis. Functional roles of target genes were explored using Gene Set Enrichment Analysis (GSEA) and co-expression analyses. Gene promoter methylation levels were assessed using databases like UALCAN, DNMIVD, and UCSC Xena, while the TISCH database provided insights into the correlation between target genes and CAFs. Experiments included RT-qPCR, Western blot, and immunohistochemistry on NSCLC patient samples, in vitro studies on isolated CAFs cells, and in vivo nude mouse tumor models. RESULTS Fifteen key genes associated with radiotherapy resistance in NSCLC cells were identified. SMAD3 was recognized as an independent prognostic factor for NSCLC, linked to poor patient outcomes. High expression of SMAD3 was correlated with low DNA methylation in its promoter region and was enriched in CAFs. In vitro and in vivo experiments confirmed that SMAD3 promotes radiotherapy resistance by activating the ITGA6/PI3K/Akt signaling pathway. CONCLUSION High expression of SMAD3 in NSCLC tissues, cells, and CAFs is closely associated with poor prognosis and increased radiotherapy resistance. SMAD3 is likely to enhance radiotherapy resistance in NSCLC cells by activating the ITGA6/PI3K/Akt signaling pathway.
Collapse
Affiliation(s)
- Fushi Han
- Department of Medical Imaging, Tongji Hospital, School of Medicine, Tongji University, No. 389, Xincun Road, Putuo District, Shanghai, 200065, People's Republic of China
- Institute of Medical Imaging Artificial Intelligence, Tongji University School of Medicine, Shanghai, 200065, China
| | - Shuzhen Chen
- Department of Nuclear Medicine, Tongji Hospital, Tongji University School of Medicine, Shanghai, 200065, People's Republic of China
| | - Kangwei Zhang
- Department of Medical Imaging, Tongji Hospital, School of Medicine, Tongji University, No. 389, Xincun Road, Putuo District, Shanghai, 200065, People's Republic of China
- Institute of Medical Imaging Artificial Intelligence, Tongji University School of Medicine, Shanghai, 200065, China
| | - Kunming Zhang
- Department of Internal Medicine, Tongji Hospital, Tongji University School of Medicine, Shanghai, 200065, People's Republic of China
| | - Meng Wang
- Department of Radiotherapy, Tongji Hospital, Tongji University School of Medicine, Shanghai, 200065, People's Republic of China
| | - Peijun Wang
- Department of Medical Imaging, Tongji Hospital, School of Medicine, Tongji University, No. 389, Xincun Road, Putuo District, Shanghai, 200065, People's Republic of China.
- Institute of Medical Imaging Artificial Intelligence, Tongji University School of Medicine, Shanghai, 200065, China.
| |
Collapse
|
2
|
Chen LC, Yang PC, Chen CY, Chiang SF, Chen TW, Chen WTL, Ke TW, Liang JA, Shiau A, Chao KSC, Huang KCY. Dual Inhibition of B7-H3 and EGFR Overcomes Acquired Chemoresistance in Colon Adenocarcinoma. J Cancer 2024; 15:1750-1761. [PMID: 38370387 PMCID: PMC10869969 DOI: 10.7150/jca.91089] [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: 10/13/2023] [Accepted: 01/18/2024] [Indexed: 02/20/2024] Open
Abstract
Despite advances in therapeutic strategies for colorectal cancer (CRC), CRC has a high disease incidence with significant morbidity and mortality worldwide. Notably, immunotherapy has shown limited efficacy in treating metastatic CRC, underscoring the need for alternative immunotherapeutic targets for the management of metastatic colorectal cancer (mCRC). In the present study, we evaluated the levels of the immune checkpoint proteins PD-L1, PD-L2 and B7-H3 in a large cohort retrospective study. We found that tumor B7-H3 (52.7%) was highly expressed in primary tumors compared to that in PD-L1 (33.6%) or PD-L2 (34.0%). Elevated B7-H3 expression was associated with advanced stage and the risk of distant metastasis and correlated with poor disease-free survival (DFS), suggesting that tumor B7-H3 was an independent prognostic factor associated with worse DFS in colon adenocarcinoma patients (COAD), especially high-risk COAD patients who received adjuvant chemotherapy. Furthermore, we found that B7-H3 significantly promoted cell proliferation and tumor growth in CRC. B7-H3 may stabilize EGFR to activate its downstream pathway for cancer cell proliferation and resistance to oxaliplatin (OXP). Dual targeting of B7-H3 and EGFR markedly rescued the susceptibility to chemotherapy in colorectal cancer cells in vitro and in vivo. Overall, these results showed that B7-H3 exhibited a high prevalence in COAD patients and was significantly associated with worse prognosis in COAD patients. Dual targeting of B7-H3 and EGFR signaling might be a potential therapeutic strategy for high-risk COAD patients.
Collapse
Affiliation(s)
- Liang-Chi Chen
- Department of Pathology, China Medical University Hospital, China Medical University, Taichung 40402, Taiwan
| | - Pei-Chen Yang
- Proton Therapy and Science Center, China Medical University Hospital, China Medical University, Taichung 40402, Taiwan
| | - Chia-Yi Chen
- Proton Therapy and Science Center, China Medical University Hospital, China Medical University, Taichung 40402, Taiwan
| | - Shu-Fen Chiang
- Lab of Precision Medicine, Feng-Yuan Hospital, Ministry of Health and Welfare, Taichung 42055, Taiwan
| | - Tsung-Wei Chen
- Department of Pathology, Asia University Hospital, Asia University, Taichung 41354, Taiwan
| | - William Tzu-Liang Chen
- Department of Colorectal Surgery, China Medical University HsinChu Hospital, China Medical University, HsinChu 302, Taiwan
- Department of Colorectal Surgery, China Medical University Hospital, China Medical University, Taichung 40402, Taiwan
- Department of Surgery, School of Medicine, China Medical University, Taichung 40402, Taiwan
| | - Tao-Wei Ke
- Department of Colorectal Surgery, China Medical University Hospital, China Medical University, Taichung 40402, Taiwan
- School of Chinese Medicine, China Medical University, Taichung 40402, Taiwan
| | - Ji-An Liang
- Department of Radiation Oncology, China Medical University Hospital, China Medical University, Taichung, Taiwan
- Department of Radiotherapy, School of Medicine, China Medical University, Taichung 40402, Taiwan
| | - An‑Cheng Shiau
- Department of Radiation Oncology, China Medical University Hospital, China Medical University, Taichung, Taiwan
- Department of Biomedical Imaging and Radiological Science, China Medical University, Taichung 40402, Taiwan
| | - K. S. Clifford Chao
- Proton Therapy and Science Center, China Medical University Hospital, China Medical University, Taichung 40402, Taiwan
- Department of Radiation Oncology, China Medical University Hospital, China Medical University, Taichung, Taiwan
- Department of Radiotherapy, School of Medicine, China Medical University, Taichung 40402, Taiwan
| | - Kevin Chih-Yang Huang
- Department of Biomedical Imaging and Radiological Science, China Medical University, Taichung 40402, Taiwan
- Translation Research Core, China Medical University Hospital, China Medical University, Taichung 40402, Taiwan
- Cancer Biology and Precision Therapeutics Center, China Medical University, Taichung 40402, Taiwan
| |
Collapse
|
3
|
Zhang H, Zhu M, Zhao A, Shi T, Xi Q. B7-H3 regulates anti-tumor immunity and promotes tumor development in colorectal cancer. Biochim Biophys Acta Rev Cancer 2024; 1879:189031. [PMID: 38036107 DOI: 10.1016/j.bbcan.2023.189031] [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: 09/19/2023] [Revised: 11/20/2023] [Accepted: 11/23/2023] [Indexed: 12/02/2023]
Abstract
Colorectal cancer (CRC) is a common malignant tumor of the gastrointestinal tract and one of the most common causes of cancer-related deaths worldwide. Immune checkpoint inhibitors have become a milestone in many cancer treatments with significant curative effects. However, its therapeutic effect on colorectal cancer is still limited. B7-H3 is a novel immune checkpoint molecule of the B7/CD28 family and is overexpressed in a variety of solid tumors including colorectal cancer. B7-H3 was considered as a costimulatory molecule that promotes anti-tumor immunity. However, more and more studies support that B7-H3 is a co-inhibitory molecule and plays an important immunosuppressive role in colorectal cancer. Meanwhile, B7-H3 promoted metabolic reprogramming, invasion and metastasis, and chemoresistance in colorectal cancer. Therapies targeting B7-H3, including monoclonal antibodies, antibody drug conjugations, and chimeric antigen receptor T cells, have great potential to improve the prognosis of colorectal cancer patients.
Collapse
Affiliation(s)
- Huan Zhang
- Department of Gastroenterology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Mengxin Zhu
- Department of Gastroenterology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Anjing Zhao
- Department of Gastroenterology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Tongguo Shi
- Jiangsu Institute of Clinical Immunology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China.
| | - Qinhua Xi
- Department of Gastroenterology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China.
| |
Collapse
|
4
|
Kwantwi LB. Genetic alterations shape innate immune cells to foster immunosuppression and cancer immunotherapy resistance. Clin Exp Med 2023; 23:4289-4296. [PMID: 37910258 DOI: 10.1007/s10238-023-01240-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Accepted: 10/26/2023] [Indexed: 11/03/2023]
Abstract
Cancer immunotherapy, particularly immune checkpoint inhibitors, has opened a new avenue for cancer treatment following the durable clinical benefits. Despite the clinical successes across several cancer types, primary or acquired resistance might eventually lead to cancer progression in patients with clinical responses. Hence, to broaden the clinical applicability of these treatments, a detailed understanding of the mechanisms limiting the efficacy of cancer immunotherapy is needed. Evidence provided thus far has implicated immunosuppressive innate immune cells infiltrating the tumor microenvironment as key players in immunotherapy resistance. According to the available data, genetic alterations can shape the innate immune response to promote immunotherapy resistance and tumor progression. Herein, this review has discussed the current understanding of the underlying mechanisms where genetic alterations modulate the innate immune milieu to drive immunosuppression and immunotherapy resistance.
Collapse
Affiliation(s)
- Louis Boafo Kwantwi
- Department of Pathology, Beckman Research Institute, City of Hope National Medical Center, Duarte, California, USA.
| |
Collapse
|
5
|
Shigemura T, Perrot N, Huang Z, Bhatt RS, Sheshdeh AB, Ahmar NE, Ghandour F, Signoretti S, McDermott DF, Freeman GJ, Mahoney KM. Regulation of HHLA2 expression in kidney cancer and myeloid cells. BMC Cancer 2023; 23:1039. [PMID: 37891555 PMCID: PMC10605970 DOI: 10.1186/s12885-023-11496-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Accepted: 10/09/2023] [Indexed: 10/29/2023] Open
Abstract
BACKGROUND The immune checkpoint HERV-H LTR-associating 2 (HHLA2) is expressed in kidney cancer and various other tumor types. Therapeutics targeting HHLA2 or its inhibitory receptor KIR3DL3 are being developed for solid tumors, including renal cell carcinoma (RCC). However, the regulation of HHLA2 expression remains poorly understood. A better understanding of HHLA2 regulation in tumor cells and the tumor microenvironment is crucial for the successful translation of these therapeutic agents into clinical applications. METHODS Flow cytometry and quantitative real-time PCR were used to analyze HHLA2 expression in primary kidney tumors ex vivo and during in vitro culture. HHLA2 expression in A498 and 786-O ccRCC cell lines was examined in vitro and in subcutaneous tumor xenografts in NSG mice. Monocytes and dendritic cells were analyzed for HHLA2 expression. We tested a range of cytokines and culture conditions, including hypoxia, to induce HHLA2 expression. RESULTS Analysis of HHLA2 expression revealed that HHLA2 is expressed on tumor cells in primary kidney tumors ex vivo; however, its expression gradually diminishes during a 4-week in vitro culture period. A498 and 786-O ccRCC tumor cell lines do not express HHLA2 in vitro, but HHLA2 expression was observed when grown as subcutaneous xenografts in NSG immunodeficient mice. Induction experiments using various cytokines and culture conditions failed to induce HHLA2 expression in A498 and 786-O tumor cell lines in vitro. Analysis of HHLA2 expression in monocytes and dendritic cells demonstrated that only IL-10 and BMP4, along with IL-1β and IL-6 to a lesser extent, modestly enhanced HHLA2 protein and mRNA expression. CONCLUSIONS HHLA2 expression is induced on kidney cancer cells in vivo by a tumor microenvironmental signal that is not present in vitro. HHLA2 expression is differentially regulated in kidney cancer epithelial cells and monocytes. Cytokines, particularly IL10, that induce HHLA2 expression in monocytes fail to upregulate HHLA2 expression in tumor cell lines in vitro. These findings underscore the importance of the interplay between tumor cell and tumor microenvironmental signals in the regulation of HHLA2. Further investigation is warranted to elucidate the mechanisms involved in HHLA2 regulation and its implications for therapeutic development.
Collapse
Affiliation(s)
- Tomonari Shigemura
- Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School, 450 Brookline Ave., Boston, MA, 02215, USA
| | - Nahuel Perrot
- Department of Medicine, Division of Medical Oncology, Beth Israel Deaconess Medical Center, Harvard Medical School, 330 Brookline Ave, Boston, MA, 02215, USA
| | - Zimo Huang
- Department of Medicine, Division of Medical Oncology, Beth Israel Deaconess Medical Center, Harvard Medical School, 330 Brookline Ave, Boston, MA, 02215, USA
| | - Rupal S Bhatt
- Department of Medicine, Division of Medical Oncology, Beth Israel Deaconess Medical Center, Harvard Medical School, 330 Brookline Ave, Boston, MA, 02215, USA
| | - Aseman Bagheri Sheshdeh
- Department of Pathology, Brigham and Women's Hospital, Harvard Medical School, 75 Francis St, Boston, MA, 02115, USA
| | - Nourhan El Ahmar
- Department of Pathology, Brigham and Women's Hospital, Harvard Medical School, 75 Francis St, Boston, MA, 02115, USA
| | - Fatme Ghandour
- Department of Pathology, Brigham and Women's Hospital, Harvard Medical School, 75 Francis St, Boston, MA, 02115, USA
| | - Sabina Signoretti
- Department of Pathology, Brigham and Women's Hospital, Harvard Medical School, 75 Francis St, Boston, MA, 02115, USA
| | - David F McDermott
- Department of Medicine, Division of Medical Oncology, Beth Israel Deaconess Medical Center, Harvard Medical School, 330 Brookline Ave, Boston, MA, 02215, USA
| | - Gordon J Freeman
- Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School, 450 Brookline Ave., Boston, MA, 02215, USA.
| | - Kathleen M Mahoney
- Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School, 450 Brookline Ave., Boston, MA, 02215, USA.
- Department of Medicine, Division of Medical Oncology, Beth Israel Deaconess Medical Center, Harvard Medical School, 330 Brookline Ave, Boston, MA, 02215, USA.
| |
Collapse
|
6
|
Hu BQ, Huang JF, Niu K, Zhou J, Wang NN, Liu Y, Chen LW. B7-H3 but not PD-L1 is involved in the antitumor effects of Dihydroartemisinin in non-small cell lung cancer. Eur J Pharmacol 2023; 950:175746. [PMID: 37105515 DOI: 10.1016/j.ejphar.2023.175746] [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: 11/26/2022] [Revised: 04/14/2023] [Accepted: 04/24/2023] [Indexed: 04/29/2023]
Abstract
Dihydroartemisinin (DHA), an active antimalaria metabolite derived from artemisinin, has received increasing attention for its anticancer activities. However, little is known about the anticancer mechanisms of DHA, although the existing data define its antimalaria effects by producing excessive reactive oxygen species (ROS). In this study, we showed that DHA effectively suppresses in vitro and in vivo tumor growth of non-small cell lung cancer (NSCLC) without perceptible toxicity on heart, liver, spleen, lung, and kidney tissues. Of note, DHA inhibited the expression of B7-H3 rather than PD-L1, whereas overexpression of B7-H3 completely rescued DHA's inhibition on cell proliferation and migration of NSCLC A549 and HCC827 cells. B7-H3 overexpression also largely inhibited DHA's induction on the apoptosis of the two cell lines. Furthermore, DHA treatment led to increased infiltration of CD8+ T Lymphocytes in the xenografts as compared with that of negative controls. Taken together, our results suggest that B7-H3 but not PD-L1 is involved in the antitumor effects of DHA in NSCLC, which may be indicative of an effective B7-H3 blockade and further combination with anti-PD-L1/PD-1 immunotherapy.
Collapse
Affiliation(s)
- Bing-Qi Hu
- Department of Laboratory Medicine, The Second Affiliated Hospital of Anhui Medical University, Hefei, 230601, China
| | - Jun-Feng Huang
- Department of Laboratory Medicine, The Second Affiliated Hospital of Anhui Medical University, Hefei, 230601, China
| | - Ke Niu
- Department of Laboratory Medicine, The Second Affiliated Hospital of Anhui Medical University, Hefei, 230601, China
| | - Jing Zhou
- Department of Laboratory Medicine, The Second Affiliated Hospital of Anhui Medical University, Hefei, 230601, China
| | - Nan-Nan Wang
- Department of Laboratory Medicine, The Second Affiliated Hospital of Anhui Medical University, Hefei, 230601, China
| | - Yu Liu
- Department of Laboratory Medicine, The Second Affiliated Hospital of Anhui Medical University, Hefei, 230601, China
| | - Li-Wen Chen
- Department of Laboratory Medicine, The Second Affiliated Hospital of Anhui Medical University, Hefei, 230601, China; Research Center for Translational Medicine, The Second Affiliated Hospital of Anhui Medical University, Hefei, 230601, China.
| |
Collapse
|
7
|
Kang C, Yun F, Shi L, Jia Y, Liu X. Landscape of costimulatory molecule signature in breast cancer and its prognostic significance. ANNALS OF TRANSLATIONAL MEDICINE 2023; 11:59. [PMID: 36819560 PMCID: PMC9929799 DOI: 10.21037/atm-22-6245] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Accepted: 01/07/2023] [Indexed: 01/16/2023]
Abstract
Background Breast cancer (BRCA) is the most common malignant tumor in the world. Because of its substantial heterogeneity, its clinical treatment is faced with various problems. Only a small number of patients can benefit from the treatment of immune checkpoint inhibitor (ICI). Costimulatory molecule signature (CMS) plays an essential role in T cell activation and antitumor immune response. Previous studies found that CMS is associated with prognosis-related immune response markers, suggesting that CMS may be a potential therapeutic target. However, the research on their function in BRCA subtype is still inadequate. Our study aims to analyze CMS in BRCA and establish an effective prognostic model. Methods We extracted 1,222 messenger RNA (mRNA) samples of 1,110 patients registered in the BRCA cohort of The Cancer Genome Atlas (TCGA), including 1,109 tumor tissue mRNA samples and 113 standard tissue samples for model construction and verification. The prognostic significance was determined by least absolute shrinkage and selection operator (LASSO)-Cox proportional hazard regression, which showed that the overall survival (OS) of the high-risk group was shorter than that of the low group (P<0.01). Results Although the CMS prognostic model can predict the prognosis well, the receiver operating characteristic (ROC) prediction results were unsatisfactory. The reason for this may be the heteromorphism of BRCA, so we divided the cases into four subtypes according to the PAM50 (PAM50Call_RNAseq) in clinical information. The same method was used to construct the model in the four subtypes and verify the effect of each subtype prognostic model. Conclusions The results showed that the submodels constructed in this study can be used to evaluate the prognosis of each subtype.
Collapse
Affiliation(s)
- Changyuan Kang
- Department of Pathology, Basic Medicine College, Inner Mongolia Medical University, Hohhot, China
| | - Fen Yun
- Department of Pathology, Basic Medicine College, Inner Mongolia Medical University, Hohhot, China
| | - Lin Shi
- Department of Pathology, Basic Medicine College, Inner Mongolia Medical University, Hohhot, China
| | - Yongfeng Jia
- Department of Pathology, Basic Medicine College, Inner Mongolia Medical University, Hohhot, China
| | - Xia Liu
- Department of Pathology, Basic Medicine College, Inner Mongolia Medical University, Hohhot, China
| |
Collapse
|
8
|
Does Elevated Pre-Treatment Plasma PD-L1 Level Indicate an Increased Tumor Burden and Worse Prognosis in Metastatic Colorectal Cancer? J Clin Med 2022; 11:jcm11164815. [PMID: 36013050 PMCID: PMC9410536 DOI: 10.3390/jcm11164815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Revised: 08/12/2022] [Accepted: 08/15/2022] [Indexed: 11/25/2022] Open
Abstract
Background: Programmed death-ligand 1 (PD-L1) and programmed cell death protein 1 (PD-1) have been reported as possibly favorable prognostic factors in colorectal cancer (CRC). However, their longitudinal effect is unknown. Methods: A pilot study was performed to investigate whether baseline PD-1/PD-L1 levels are associated with further laboratory changes and/or shorter survival. Results: A total of 506 laboratory measurements from 37 metastatic CRC patients were analyzed. The baseline plasma PD-1 and PD-L1 levels were 27.73 ± 1.20 pg/mL and 16.01 ± 1.09 pg/mL, respectively. Disease progression (p = 0.0443) and baseline high-sensitivity C-reactive protein (p = 0.0011), aspartate transaminase (p = 0.0253), alanine transaminase (p = 0.0386), and gamma-glutamyl transferase (p = 0.0103) were associated with higher PD-L1 levels. Based on the baseline PD-1/PD-L1 levels, low and high PD-1/PD-L1 groups were created. Constant, pathological levels of complete blood count values, high-sensitivity C-reactive protein, serum albumin, high-density lipoprotein cholesterol, and lactate dehydrogenase were characteristic for patients with high baseline PD-L1. High PD-L1 levels were significantly associated with increased tumor burden. Disease-specific survival and progression-free survival were significantly shorter in patients with high PD-L1. Conclusions: Abnormal levels of laboratory parameters and intensified tumor burden can be expected if elevated baseline plasma PD-1/PD-L1 levels are found.
Collapse
|