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Texier A, Lenting PJ, Denis CV, Roullet S, Christophe OD. Angiopoietin-2 binds to multiple interactive sites within von Willebrand factor. Res Pract Thromb Haemost 2023; 7:102204. [PMID: 37854453 PMCID: PMC10579536 DOI: 10.1016/j.rpth.2023.102204] [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: 01/13/2023] [Revised: 08/17/2023] [Accepted: 08/18/2023] [Indexed: 10/20/2023] Open
Abstract
Background Biosynthesis of von Willebrand factor (VWF) in endothelial cells drives the formation of storage-organelles known as Weibel-Palade bodies (WPBs). WPBs also contain several other proteins, including angiopoietin-2 (Ang-2). Objectives At present, the molecular basis of the VWF-Ang-2 interaction is poorly understood. Here, we used immunosorbent-binding assays and specific recombinant VWF fragments to analyze VWF-Ang-2 interactions. Results We found that VWF bound to immobilized Ang-2 most efficiently (half-maximal binding at 0.5 ± 0.1 μg/mL) under conditions of high CaCl2 (10 mM) and slightly acidic pH (6.4-7.0). Interestingly, several isolated recombinant VWF domains (A1/Fc, A2/Fc, D4/Fc, and D'D3-HPC4) displayed dose-dependent binding to immobilized Ang-2. Binding appeared specific, as antibodies against D'D3, A1, and A2 significantly reduced the binding of these domains to Ang-2. Complexes between VWF and Ang-2 in plasma could be detected by immunoprecipitation- and immunosorbent assays. Unexpectedly, control experiments also revealed complexes between VWF and angiopoietin-1 (Ang-1), a protein structurally homologous to Ang-2. Furthermore, direct binding studies showed dose-dependent binding of VWF to immobilized Ang-1 (half-maximal binding at 1.8 ± 1.0 μg/mL). Interestingly, rather than competing for Ang-1 binding, Ang-2 enhanced the binding of VWF to Ang-1 about 3-fold. Competition experiments further revealed that binding to VWF does not prevent Ang-1 and Ang-2 from binding to Tie-2. Conclusion Our data show that both Ang-1 and Ang-2 bind to VWF, seemingly using different interactive sites. Ang-2 modulates the binding of VWF to Ang-1, the (patho)-physiological consequences of which remain to be investigated.
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Affiliation(s)
- Alexis Texier
- Institut National de la Santé et de la Recherche Médicale, Unité Mixte de Recherche 1176, Université Paris-Saclay, Le Kremlin-Bicêtre, France
| | - Peter J. Lenting
- Institut National de la Santé et de la Recherche Médicale, Unité Mixte de Recherche 1176, Université Paris-Saclay, Le Kremlin-Bicêtre, France
| | - Cécile V. Denis
- Institut National de la Santé et de la Recherche Médicale, Unité Mixte de Recherche 1176, Université Paris-Saclay, Le Kremlin-Bicêtre, France
| | - Stéphanie Roullet
- Institut National de la Santé et de la Recherche Médicale, Unité Mixte de Recherche 1176, Université Paris-Saclay, Le Kremlin-Bicêtre, France
- Service d’Anesthésie-Réanimation, Université Paris Saclay, Hôpital Paul Brousse, Assistance Publique - Hôpitaux de Paris (APHP), Villejuif, France
| | - Olivier D. Christophe
- Institut National de la Santé et de la Recherche Médicale, Unité Mixte de Recherche 1176, Université Paris-Saclay, Le Kremlin-Bicêtre, France
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2
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Huang Q, Zhou R, Hao X, Zhang W, Chen G, Zhu T. Circulating biomarkers in perioperative management of cancer patients. PRECISION CLINICAL MEDICINE 2023; 6:pbad018. [PMID: 37954451 PMCID: PMC10634636 DOI: 10.1093/pcmedi/pbad018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Accepted: 06/27/2023] [Indexed: 11/14/2023] Open
Abstract
Owing to the advances in surgical technology, most solid tumours can be controlled by surgical excision. The priority should be tumour control, while some routine perioperative management might influence cancer progression in an unnoticed way. Moreover, it is increasingly recognized that effective perioperative management should include techniques to improve postoperative outcomes. These influences are elucidated by the different functions of circulating biomarkers in cancer patients. Here, circulating biomarkers with two types of clinical functions were reviewed: (i) circulating biomarkers for cancer progression monitoring, for instance, those related to cancer cell malignancy, tumour microenvironment formation, and early metastasis, and (ii) circulating biomarkers with relevance to postoperative outcomes, including systemic inflammation, immunosuppression, cognitive dysfunction, and pain management. This review aimed to provide new perspectives for the perioperative management of patients with cancer and highlight the potential clinical translation value of circulating biomarkers in improving outcomes.
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Affiliation(s)
- Qiyuan Huang
- Department of Anaesthesiology, West China Hospital, Sichuan University, Chengdu 610041, China
- The Research Units of West China (2018RU012)-Chinese Academy of Medical Sciences, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Ruihao Zhou
- Department of Anaesthesiology, West China Hospital, Sichuan University, Chengdu 610041, China
- The Research Units of West China (2018RU012)-Chinese Academy of Medical Sciences, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Xuechao Hao
- Department of Anaesthesiology, West China Hospital, Sichuan University, Chengdu 610041, China
- The Research Units of West China (2018RU012)-Chinese Academy of Medical Sciences, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Weiyi Zhang
- Department of Anaesthesiology, West China Hospital, Sichuan University, Chengdu 610041, China
- The Research Units of West China (2018RU012)-Chinese Academy of Medical Sciences, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Guo Chen
- Department of Anaesthesiology, West China Hospital, Sichuan University, Chengdu 610041, China
- The Research Units of West China (2018RU012)-Chinese Academy of Medical Sciences, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Tao Zhu
- Department of Anaesthesiology, West China Hospital, Sichuan University, Chengdu 610041, China
- The Research Units of West China (2018RU012)-Chinese Academy of Medical Sciences, West China Hospital, Sichuan University, Chengdu 610041, China
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3
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He J, Jiang M, Liu J, Zhu R, Lv W, Lian R, Yang Y, Wang R. Homeobox D9 drives the malignant phenotypes and enhances the Programmed death ligand-1 expression in non-small cell lung cancer cells via binding to Angiopoietin-2 promoter. World J Surg Oncol 2023; 21:93. [PMID: 36907878 PMCID: PMC10009994 DOI: 10.1186/s12957-023-02969-z] [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: 05/05/2022] [Accepted: 02/27/2023] [Indexed: 03/14/2023] Open
Abstract
Non-small cell lung cancer (NSCLC) is the leading cause of cancer-related death worldwide. Homeobox D9 (HOXD9), a member of the HOX family of transcription factors, plays a driver role in development of multiple cancers. Angiopoietin-2 (ANGPT2) is reportedly to facilitate angiogenesis, growth and metastasis in various cancers, including lung cancer. In addition, blocking ANGPT2 can effectively improve cancer immunotherapy via downregulation of Programmed death ligand-1 (PD-L1). The purpose of this study was to elucidate the role of HOXD9 in NSCLC and whether ANGPT2 is required for HOXD9-mediated malignant behaviors of NSCLC cells. By performing a series of in vitro functional experiments, we found that knockdown of HOXD9 induced proliferative inhibition, cell cycle G1 arrest, apoptosis, migratory suppression and invasive repression of NSCLC cells. Reduced PD-L1 expression in NSCLC cells was observed after HOXD9 silencing. Besides, HOXD9 deletion decreased the expression of ANGPT2 in NSCLC cells. In line with this, HOXD9 overexpression led to opposite alteration in NSCLC cells. Mechanistically, ANGPT2 was transcriptionally activated by HOXD9. Forced expression of ANGPT2 significantly regulated HOXD9-mediated malignant phenotypes, and enhanced PD-L1 expression of NSCLC cells. Our results expressing HOXD9 may function as an oncogene in NSCLC via trans-activation of ANGPT2.
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Affiliation(s)
- Jiabei He
- The Fourth Department of Oncology, Affiliated Zhongshan Hospital of Dalian University, 6 Jiefang Street, Zhongshan District, Dalian, 116001, Liaoning, China
| | - Mengjia Jiang
- The Fourth Department of Oncology, Affiliated Zhongshan Hospital of Dalian University, 6 Jiefang Street, Zhongshan District, Dalian, 116001, Liaoning, China
| | - Jing Liu
- The Fourth Department of Oncology, Affiliated Zhongshan Hospital of Dalian University, 6 Jiefang Street, Zhongshan District, Dalian, 116001, Liaoning, China
| | - Ruiping Zhu
- Department of Pathology, Affiliated Zhongshan Hospital of Dalian University, Dalian, 116001, Liaoning, China
| | - Weipeng Lv
- Department of Pathology, Affiliated Zhongshan Hospital of Dalian University, Dalian, 116001, Liaoning, China
| | - Ruiqing Lian
- Department of Pathology, Affiliated Zhongshan Hospital of Dalian University, Dalian, 116001, Liaoning, China
| | - Yang Yang
- Department of Pathology, Affiliated Zhongshan Hospital of Dalian University, Dalian, 116001, Liaoning, China
| | - Ruoyu Wang
- The Fourth Department of Oncology, Affiliated Zhongshan Hospital of Dalian University, 6 Jiefang Street, Zhongshan District, Dalian, 116001, Liaoning, China.
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4
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Baseline Ang-2 Serum Levels as a Predictive Factor for Survival in NSCLC and SCLC. Life (Basel) 2022; 12:life12122092. [PMID: 36556457 PMCID: PMC9786126 DOI: 10.3390/life12122092] [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: 10/17/2022] [Revised: 11/29/2022] [Accepted: 12/05/2022] [Indexed: 12/15/2022] Open
Abstract
Angiopoietin-2 (Ang-2) has been implicated in the development of several types of cancer, including lung malignancy. In the present study, we examined the impact of Ang-2 serum concentration on the development, dissemination, and 5-year overall survival of NSCLC and SCLC. A total of 99 patients with lung cancer were tested. The OS of NSCLC and SCLC patients was estimated using Kaplan−Meier curves and compared through log-rank test. The median serum level of Ang-2 at baseline in both NSCLC and SCLC patients was significantly higher than that of controls (p < 0.0001). The Ang-2 serum concentration was not related to metastasis, neither in NSCLC nor in SCLC cases. The OS was found to be significantly shorter for stage IIIβ NSCLC patients with a high baseline Ang-2 serum concentration (p = 0.012), while Cox regression analysis showed that Ang-2 is a significant independent factor for poor prognosis for stage IIIβ NSCLC (hazard ratio = 2.97, 95% CI: 1.05−8.40, p = 0.04). The concentration of Ang-2 has no impact on the prognosis of SCLC. Ang-2 could be considered as a significant molecular marker that enables the prediction of NSCLC and SCLC development, and is involved in the poor prognosis of stage IIIβ NSCLC.
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5
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Liu N, Liu M, Fu S, Wang J, Tang H, Isah AD, Chen D, Wang X. Ang2-Targeted Combination Therapy for Cancer Treatment. Front Immunol 2022; 13:949553. [PMID: 35874764 PMCID: PMC9305611 DOI: 10.3389/fimmu.2022.949553] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2022] [Accepted: 06/13/2022] [Indexed: 11/21/2022] Open
Abstract
Angiopoietin-2 (Ang2), a member of the angiopoietin family, is widely involved in the process of vascular physiology, bone physiology, adipose tissue physiology and the occurrence and development of inflammation, cardiac hypertrophy, rheumatoid, tumor and other diseases under pathological conditions. Proliferation and metastasis of cancer largely depend on angiogenesis. Therefore, anti-angiogenesis has become the target of tumor therapy. Due to the Ang2 plays a key role in promoting angiogenesis and stability in vascular physiology, the imbalance of its expression is an important condition for the occurrence and development of cancer. It has been proved that blocking Ang2 can inhibit the growth, invasion and metastasis of cancer cells. In recent years, research has been constantly supplemented. We focus on the mechanisms that regulate the expression of Ang2 mRNA and protein levels in different cancers, contributing to a better understanding of how Ang2 exerts different effects in different cancers and stages, as well as facilitating more specific targeting of relevant molecules in cancer therapy. At the same time, the importance of Ang2 in cancer growth, metastasis, prognosis and combination therapy is pointed out. And finally, we will discuss the current investigations and future challenges of combining Ang2 inhibition with chemotherapy, immunotherapy, and radiotherapy to increase its efficacy in cancer patients. This review provides a theoretical reference for the development of new targets and effective combination therapy strategies for cancer treatment in the future.
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Affiliation(s)
| | | | | | | | | | | | - Deyu Chen
- *Correspondence: Xu wang, ; Deyu Chen,
| | - Xu Wang
- *Correspondence: Xu wang, ; Deyu Chen,
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6
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Tsakogiannis D, Nikolakopoulou A, Zagouri F, Stratakos G, Syrigos K, Zografos E, Koulouris N, Bletsa G. Update Overview of the Role of Angiopoietins in Lung Cancer. MEDICINA (KAUNAS, LITHUANIA) 2021; 57:medicina57111191. [PMID: 34833409 PMCID: PMC8625006 DOI: 10.3390/medicina57111191] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Revised: 10/29/2021] [Accepted: 10/29/2021] [Indexed: 12/27/2022]
Abstract
Angiogenesis is a biological process that involves the formation of new blood vessels from the existing vasculature, and it plays a fundamental role in the development and progression of several types of cancer, including lung cancer. The angiopoietin/Tie2 ligand/receptor system orchestrates vascular integrity. In particular, Angiopoietin-1 activates the endothelial cell (EC)-specific receptor tyrosine kinase, Tie2, which is essential for preserving endothelial quiescence. On the other hand, Angiopoietin-2 acts as an inhibitor of the Angiopoietin-1/Tie2 signaling pathways, thus facilitating the destabilization of quiescent endothelium in cases of inflammation and cancer. Clinical studies have proven that high levels of Angiopoietin-2 indicate the development of non-small-cell lung carcinomas (NSCLC), while high levels of Angiopoietin-2 are strongly related to tumor angiogenesis, lymphangiogenesis, metastasis, and poor prognosis. Interestingly, the association of Angiopoietin-2 levels with the type of surgical approach makes Angiopoietin-2 a valuable factor in selecting the most suitable therapeutic strategy for lung cancer patients. The role of the Angiopoietin-1 and Angiopoietin-4 levels in NSCLC development requires further investigation. The present review focuses on the clinical impact of the Angiopoietin-1, Angiopoietin-2, and Angiopoietin-4 levels in patients diagnosed with NSCLC, emphasizing the interaction between them, and how they affect the development, progression, and metastasis of lung disease. Finally, it estimates the role of angiopoietins levels in the effective therapy of lung cancer patients.
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Affiliation(s)
| | - Asimina Nikolakopoulou
- Intensive Care Unit, 1st Department of Respiratory Medicine, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece; (A.N.); (G.S.); (N.K.)
| | - Flora Zagouri
- Department of Clinical Therapeutics, School of Medicine, Alexandra Hospital, National and Kapodistrian University of Athens, 11528 Athens, Greece; (F.Z.); (E.Z.)
| | - Grigorios Stratakos
- Intensive Care Unit, 1st Department of Respiratory Medicine, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece; (A.N.); (G.S.); (N.K.)
| | - Konstantinos Syrigos
- Third Department of Internal Medicine, Sotiria Hospital, National and Kapodistrian University of Athens, 11527 Athens, Greece;
| | - Eleni Zografos
- Department of Clinical Therapeutics, School of Medicine, Alexandra Hospital, National and Kapodistrian University of Athens, 11528 Athens, Greece; (F.Z.); (E.Z.)
| | - Nikolaos Koulouris
- Intensive Care Unit, 1st Department of Respiratory Medicine, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece; (A.N.); (G.S.); (N.K.)
| | - Garyfalia Bletsa
- Research Center, Hellenic Anticancer Institute, 10680 Athens, Greece;
- Correspondence: or ; Tel./Fax: +30-21-03643723
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7
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Stage-dependent angiopoietin-Tie2 and nitric oxide signaling of erythrocytes in response to surgical trauma in head and neck cancer. World J Surg Oncol 2020; 18:209. [PMID: 32799882 PMCID: PMC7429775 DOI: 10.1186/s12957-020-01991-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2020] [Accepted: 08/05/2020] [Indexed: 12/11/2022] Open
Abstract
Background Angiopoietin-Tie2 and nitric oxide pathway is crucial in tumor angiogenesis and closely correlates with tumor development, growth, and metastasis. This study aimed to investigate the angiopoietin-Tie2 and nitric oxide signaling of the erythrocyte membrane in response to surgical trauma in head and neck cancer. Methods We prospectively enrolled the patients with histology-proven head and neck squamous cell carcinoma undergoing surgical resection of primary tumors at the medical center between August and November 2019. We measured the preoperative and postoperative levels of angiopoietin-1, angiopoietin-2 in plasma using enzyme-linked immunosorbent assays, nitric oxide in plasma using nitrate/nitrite colorimetric assays, and Tie2 phosphorylation in erythrocyte membrane using Western blotting. Results The plasma angiopoietin-1 was downregulated from the median 971.3 pg/mL (interquartile range [IQR] 532.1–1569.3) to 417.9 (IQR 270.5–597.3) after tumor resection (p = 0.0020). Conversely, the plasma angiopoietin-2 was enhanced from 1173.6 pg/mL (IQR 977.7–1450.2) to 2353.7 (IQR 1352.4–2954.3) after surgery (p = 0.0021), with a concomitant increase in plasma nitric oxide level from 7.73 μM (IQR 5.39–10.06) to 10.50 (IQR 7.65–14.18) after surgical resection (p = 0.0093). Subgroup analyses further showed the angiopoietin-Tie2 and nitric oxide signaling was significant only in stage III and IV cancer. Conclusions The dynamic change of angiopoietin-Tie2 signaling in the erythrocyte membrane along with the enhanced nitric oxide in plasma after tumor resection suggests erythrocytes play a significant role in modulating surgery-induced angiogenesis, which may provide a novel marker for cancer surveillance and control.
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8
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Xu C, Yuan Q, Hu H, Wang W, Zhang Q, Li L, Wang J, Yang R. Expression of Cripto-1 predicts poor prognosis in stage I non-small cell lung cancer. J Cell Mol Med 2020; 24:9705-9711. [PMID: 32697011 PMCID: PMC7520286 DOI: 10.1111/jcmm.15518] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Revised: 05/14/2020] [Accepted: 05/24/2020] [Indexed: 02/06/2023] Open
Abstract
Cripto-1 (CR-1) is related to the biological behaviour and prognosis of carcinomas. The purpose of this study was to investigate the significance of CR-1 expression in surgically resected stage I non-small cell lung cancer (NSCLC). One hundred and forty-eight patients with completely resected stage I NSCLC and available clinical follow-up data were assessed. The protein expression of CR-1 in the tumours was detected by immunohistochemistry. CR-1 was highly expressed in 64 of 148 tumours. Among patients with high CR-1 expression, progression-free survival and overall survival rate were significantly lower than those of patients with low CR-1 levels (P = .013 and P = .019, respectively). The incidence of distant metastasis in patients with high CR-1 expression was significantly higher than that of in patients with low CR-1 expression (57.13% vs 21.43%, P = .001). The results of the multivariate analysis confirmed that a high CR-1 was a significant factor for poor prognosis. In conclusion, CR-1 could be a useful prognostic factor in patients with stage I NSCLC, likely as an indicator of the metastatic propensity of the tumour.
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Affiliation(s)
- Chunhua Xu
- Department of Respiratory Medicine, The Affiliated Brain Hospital of Nanjing Medical University, Nanjing, China.,Clinical Center of Nanjing Respiratory Diseases and Imaging, Nanjing, China
| | - Qi Yuan
- Department of Respiratory Medicine, The Affiliated Brain Hospital of Nanjing Medical University, Nanjing, China.,Clinical Center of Nanjing Respiratory Diseases and Imaging, Nanjing, China
| | - Huidi Hu
- Department of Pathology, The Affiliated Brain Hospital of Nanjing Medical University, Nanjing, China
| | - Wei Wang
- Department of Respiratory Medicine, The Affiliated Brain Hospital of Nanjing Medical University, Nanjing, China.,Clinical Center of Nanjing Respiratory Diseases and Imaging, Nanjing, China
| | - Qian Zhang
- Department of Respiratory Medicine, The Affiliated Brain Hospital of Nanjing Medical University, Nanjing, China.,Clinical Center of Nanjing Respiratory Diseases and Imaging, Nanjing, China
| | - Li Li
- Department of Respiratory Medicine, The Affiliated Brain Hospital of Nanjing Medical University, Nanjing, China.,Clinical Center of Nanjing Respiratory Diseases and Imaging, Nanjing, China
| | - Jiwang Wang
- Department of Respiratory Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Rusong Yang
- Department of Thoracic Surgery, The Affiliated Brain Hospital of Nanjing Medical University, Nanjing, China
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9
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Sun B, Dong C, Lei H, Gong Y, Li M, Zhang Y, Zhang H, Sun L. Propranolol inhibits proliferation and induces apoptosis of hemangioma-derived endothelial cells via Akt pathway by down-regulating Ang-2 expression. Chem Biol Interact 2019; 316:108925. [PMID: 31838054 DOI: 10.1016/j.cbi.2019.108925] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Revised: 11/13/2019] [Accepted: 12/10/2019] [Indexed: 12/16/2022]
Abstract
Hemangioma is one of the commonest benign vascular tumors among children. Propranolol is the first-line therapeutic drug for hemangioma. However, the effects and mechanisms of propranolol in hemangioma have not been thoroughly elaborated. In this study, the effects and mechanisms of propranolol were explored using hemangioma-derived endothelial cells (HemECs). The expression of GLUT1 were determined by immunofluorescence staining. qRT-PCR assay was conducted to detect the mRNA expressions of angiopoietin-2 (Ang-2) and Tie-2. Western blot assay was carried out to measure the protein levels of Ang-2, Tie-2, protein kinase-B (Akt) and phospholyrated-Akt (p-Akt). Cell proliferation was assessed by Cell Counting Kit-8 (CCK-8) assay and Western blot of Ki67 protein level. Cell apoptosis was measured by flow cytometry analysis and Western blot of Bax and Bcl-2 levels. We found that propranolol inhibited proliferation and induced apoptosis in human umbilical vein endothelial cells (HUVECs) and HemECs. Moreover, propranolol inhibited the expressions of Ang-2 and Tie-2 in HUVECs and HemECs. Functional analysis revealed that Ang-2 attenuated the effects of propranolol on HemEC proliferation and apoptosis. Mechanistical analysis showed that propranolol inhibited the Akt pathway by regulating Ang-2 expression in HemECs. Futhermore, inhibition of the Akt pathway attenuated the effects of Ang-2 on proliferation and apoptosis in HemECs. In conclusion, propranolol inhibited proliferation and induced apoptosis of HemECs via Akt pathway by down-regulating Ang-2 expression, which contributes to our understanding on the pathogenesis of hemangioma and promotes the development of therapeutic approaches for hemangioma.
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Affiliation(s)
- Bin Sun
- Department of Hemangioma and Vascular Malformation, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, Zhengzhou, 450003, China
| | - Changxian Dong
- Department of Hemangioma and Vascular Malformation, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, Zhengzhou, 450003, China.
| | - Hongzhao Lei
- Department of Hemangioma and Vascular Malformation, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, Zhengzhou, 450003, China
| | - Yubin Gong
- Department of Hemangioma and Vascular Malformation, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, Zhengzhou, 450003, China
| | - Miaomiao Li
- Department of Hemangioma and Vascular Malformation, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, Zhengzhou, 450003, China
| | - Yuanfang Zhang
- Department of Hemangioma and Vascular Malformation, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, Zhengzhou, 450003, China
| | - Hongyu Zhang
- Department of Hemangioma and Vascular Malformation, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, Zhengzhou, 450003, China
| | - Longlong Sun
- School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, 450001, China
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10
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Shantha Kumara HMC, Yan XH, Pettke E, Cekic V, Gandhi ND, Bellini GA, Whelan RL. Plasma and wound fluid levels of eight proangiogenic proteins are elevated after colorectal resection. World J Gastrointest Oncol 2019; 11:470-488. [PMID: 31236198 PMCID: PMC6580318 DOI: 10.4251/wjgo.v11.i6.470] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/18/2018] [Revised: 03/07/2019] [Accepted: 03/16/2019] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Colorectal resection is associated with 3-5 wk long elevations in the plasma levels of at least 11 proangiogenic proteins that may stimulate tumor angiogenesis post-surgery. The increases during the first week after surgery may be related to the acute inflammatory response; the cause(s) of the week 2-5 increases is unknown. The wounds are a possible source because of the important role that angiogenesis plays in the healing process. The main hypothesis of the study is that wound fluid levels of the proteins studied will be elevated well beyond plasma levels which, in turn, are elevated from preoperative baseline levels.
AIM To determine plasma and wound fluid levels of 8 proangiogenic proteins after colorectal resection for cancer and benign pathology.
METHODS Blood and wound fluid samples were taken simultaneously on postoperative (postop) day 1, 3, and later time points until wound drain removal in 35 colorectal cancer patients and 31 benign disease patients undergoing colorectal resection in whom closed wound drains had been placed in either the pelvis or the subcutaneous space of the abdominal incision. Postop plasma levels were compared to preop plasma and postop wound fluid levels (separate analyses for cancer and benign groups).
RESULTS Sixty-six colorectal disease patients were studied (35 cancer, 31 benign pathology). Most patients underwent minimally invasive surgery (open surgery in 11% of cancer and 6% of benign patients). The majority in the cancer group had rectal resections while in the benign group sigmoid or right colectomy predominated. Plasma levels of all 8 proteins were significantly elevated from baseline (P < 0.05) at all post-operative time points in the cancer group and at 90% of time points (29/32) in the benign group. Wound levels of all 8 proteins were 3-106 times higher (P < 0.05) than plasma levels at 87-90 percent of postop time points; of note, wound levels were more than 10 times higher at 47-50% of time points.
CONCLUSION Plasma protein levels were elevated for 3 weeks after surgery; wound fluid levels were much greater than corresponding blood levels. Healing wounds may be the source of the plasma increases.
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Affiliation(s)
- HMC Shantha Kumara
- Division of Colon and Rectal Surgery, Department of Surgery, Mount Sinai West Hospital, New York, NY 10019, United States
| | - Xiao-Hong Yan
- Division of Colon and Rectal Surgery, Department of Surgery, Mount Sinai West Hospital, New York, NY 10019, United States
| | - Erica Pettke
- Division of Colon and Rectal Surgery, Department of Surgery, Mount Sinai West Hospital, New York, NY 10019, United States
| | - Vesna Cekic
- Division of Colon and Rectal Surgery, Department of Surgery, Mount Sinai West Hospital, New York, NY 10019, United States
| | - Nipa Dilip Gandhi
- Division of Colon and Rectal Surgery, Department of Surgery, Mount Sinai West Hospital, New York, NY 10019, United States
| | - Geoffrey A Bellini
- Division of Colon and Rectal Surgery, Department of Surgery, Mount Sinai West Hospital, New York, NY 10019, United States
| | - Richard L Whelan
- Division of Colon and Rectal Surgery, Department of Surgery, Mount Sinai West Hospital, New York, NY 10019, United States
- Department of Surgery, Mount Sinai Icahn School of Medicine, New York, NY 10029, United States
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Jiang AY, Zhang J, Luo HL, Gao F, Lv YF. Icotinib and whole-brain radiotherapy for the treatment in patients with brain metastases from EGFR-mutant nonsmall cell lung cancer: A retrospective study. Medicine (Baltimore) 2018; 97:e0312. [PMID: 29642161 PMCID: PMC5908633 DOI: 10.1097/md.0000000000010312] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
This study aimed to explore the effect and toxicity of icotinib and whole-brain radiotherapy (IWBRT) for the treatment of brain metastases from nonsmall cell lung cancer (BMNSCLC) with epidermal growth factor receptor (EGFR)-mutant among Chinese Han population.A total of 55 patients with EGFR-mutant BMNSCLC were included. They received orally icotinib (125 mg/tablet, 125 mg each time, 3 times daily) until disease progression. In addition, they also underwent whole-brain radiotherapy (3-Gy fractions once daily, 5 days weekly for a total dose of 30 Gy) in an attempt to extend their survival time. The outcomes consisted of complete response (CR), partial response (PR), stable disease (SD), progress disease (PD), overall response rate (ORR), progression-free survival (PFS), and overall survival (OS). In addition, toxicity was also recorded in this study.The CR, PR, SD, PD, ORR, PFS, and OS were 38.2%, 52.8%, 5.4%, 3.6%, 90.1%, 12.5%, and 48.0% months, respectively. In addition, mild toxicity was observed in this study.This study demonstrated that IWBRT is efficacious with acceptable toxicity for patients with EGFR-mutant BMNSCLC among Chinese Han population.
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Affiliation(s)
- Ai-Ying Jiang
- Department of Respiratory Medicine, The Affiliated Hongqi Hospital of Mudanjiang Medical University
| | - Jing Zhang
- Department of Anatomy, Mudanjiang Medical University
| | - Hai-Long Luo
- Department of Neurology, The Affiliated Hongqi Hospital of Mudanjiang Medical University
| | - Feng Gao
- Department of Anesthesiology, Mudanjiang Hospital of Traditional Chinese Medicine, Mudanjiang, China
| | - Yu-Feng Lv
- Department of Respiratory Medicine, The Affiliated Hongqi Hospital of Mudanjiang Medical University
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Xu Y, Zhang Y, Wang Z, Chen N, Zhou J, Liu L. The role of serum angiopoietin-2 levels in progression and prognosis of lung cancer: A meta-analysis. Medicine (Baltimore) 2017; 96:e8063. [PMID: 28906403 PMCID: PMC5604672 DOI: 10.1097/md.0000000000008063] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Angiogenesis is an essential process in the development and progression of malignant tumors including lung cancer, in which angiopoietin-2 (Ang-2) plays an important role. The objective of this study was to assess the prognostic value of serum Ang-2 levels in patients with lung cancer. METHODS A comprehensive systematic electronic search was performed in the Pubmed, Embase, Web of Science, china national knowledge infrastructure, and VIP databases update to October, 2016 (qikan.cqvip.com). Literatures examining the relevance of serum Ang-2 levels to progression and prognosis of lung cancer were eligible for our study. Standardized mean differences (SMD) with 95% confidence interval (95% CI) and a P value were applied to compare continuous variables, and hazard ratio (HR) with 95% CI as well as P value were applied for prognostic role. RESULTS Twenty studies with 1911 patients met the eligibility criteria. Among them, 7 studies with 575 patients with lung cancer assessed the association between expression of serum Ang-2 and prognosis. According to our results, higher levels of serum Ang-2 were associated with the later stage of tumor. Serum Ang-2 levels were significantly lower in stage I than in stage II (SMD: -0.51; 95% CI: -0.75 to -0.27; P < .001), in stage II than in stage III (SMD: -0.52; 95% CI: -0.80 to -0.24; P < .001), in stage III than in stage IV (SMD: -0.58; 95% CI: -0.93 to -0.23; P = .001). In addition, serum Ang-2 levels were higher in patients with lymph node metastasis (SMD: 1.06; 95% CI, 0.57-1.56; P < .001). Meanwhile, patients with lung cancer with higher levels of serum Ang-2 were associated with a significant poorer prognosis when compared to those with lower serum Ang-2 levels (HR: 1.64; 95% CI: 1.20-2.25; P = .002), and this role was further detected when stratified by ethnicity and histological type. CONCLUSIONS This systematic review and meta-analysis suggested that serum Ang-2 levels might be a potential predictor for staging, and were associated with prognosis of lung cancer.
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Affiliation(s)
- Yuyang Xu
- Department of Thoracic Surgery, West China Hospital
- Western China Collaborative Innovation Center for Early Diagnosis and Multidisciplinary Therapy of Lung Cancer
| | - Yingyi Zhang
- West China School of Medicine, Sichuan University, Chengdu, China
| | - Zihuai Wang
- West China School of Medicine, Sichuan University, Chengdu, China
| | - Nan Chen
- Department of Thoracic Surgery, West China Hospital
- Western China Collaborative Innovation Center for Early Diagnosis and Multidisciplinary Therapy of Lung Cancer
| | - Jian Zhou
- West China School of Medicine, Sichuan University, Chengdu, China
| | - Lunxu Liu
- Department of Thoracic Surgery, West China Hospital
- Western China Collaborative Innovation Center for Early Diagnosis and Multidisciplinary Therapy of Lung Cancer
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Li N, Lu Y, Li D, Zheng X, Lian J, Li S, Cui H, Zhang L, Sang L, Wang Y, Yu JJ, Lu T. All-trans retinoic acid suppresses the angiopoietin-Tie2 pathway and inhibits angiogenesis and metastasis in esophageal squamous cell carcinoma. PLoS One 2017; 12:e0174555. [PMID: 28369068 PMCID: PMC5378352 DOI: 10.1371/journal.pone.0174555] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2016] [Accepted: 03/10/2017] [Indexed: 12/29/2022] Open
Abstract
Esophageal squamous cell carcinoma (ESCC) is the second common cancer in Henan province and is well-known for aggressiveness and dismal prognosis. Adjuvant therapies, chemotherapy, radiotherapy and endoscopic treatment have not improved survival rates in patients with late stage esophageal carcinoma. All-trans retinoic acid (ATRA) is the active ingredient of Vitamin A and affects a wide spectrum of biological processes including development, growth, neural function, immune function, reproduction, and vision. It is one of the most potent therapeutic agents used for treating cancers, especially lung adenocarcinomas. ATRA inhibits metastatic potential and angiogenesis in several tumor models. We investigated the effects of ATRA on the expression of angiopoietin 1 (Ang-1), angiopoietin 2 (Ang-2) and receptor Tie-2 in EC1 cells in vitro. We also assessed the growth and migration of EC1 cells in vitro. ATRA treatment caused 29.5% and 40.3% reduction of the growth of EC1 cells after 24 hours and 48 hours, relative to the control. ATRA plus fluorouracil treatment reduced the viability more strongly than either drug alone, indicating an additive effect. Moreover, ATRA decreased EC1 migration by 87%. Furthermore, ATRA treatment led to a marked decrease of the transcript levels of Ang-1, Ang-2, Tie-2, VEGF, and VEGF receptors, as assessed by real-time RT-PCR. Importantly, the protein levels of Ang-1, Ang-2 and Tie-2 were reduced by ATRA treatment. In vivo, we found ATRA treatment suppressed the tumor growth and improved the cachexia of mice. Importantly, ATRA treatment decreased the expression of CD31, Ang-1, Ang-2 and Tie-2 in subcutaneous tumors of EC1 cells. Collectively, our findings demonstrate that ATRA exhibits a dose- and temporal-dependent effect on the metastatic behavior, suppresses the angiopoietin-Tie2 pathway and inhibits angiogenesis and the progression of xenograft tumors of EC1 cells.
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Affiliation(s)
- Na Li
- Department of Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan Province, People's Republic of China
| | - Yanjuan Lu
- Department of Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan Province, People's Republic of China
| | - Daoming Li
- Department of Pathology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan Province, People's Republic of China
| | - Xiangyu Zheng
- Department of Pathology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan Province, People's Republic of China
| | - Jingyao Lian
- School of Life Sciences, Zhengzhou University, Zhengzhou, Henan Province, People's Republic of China
| | - Shanshan Li
- Department of Oncology, Zhengzhou First People’s Hospital, Zhengzhou, Henan Province, People's Republic of China
| | - Huijuan Cui
- Department of Oncology, The Chinese People’s Liberation Army 150 Central Hospital, Luoyang, Henan Province, People's Republic of China
| | - Linda Zhang
- Department of Behavioral Neuroscience, Northeastern University, Boston, MA, United States of America
| | - Luqian Sang
- Department of Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan Province, People's Republic of China
| | - Ying Wang
- Department of Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan Province, People's Republic of China
| | - Jane J. Yu
- Department of Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan Province, People's Republic of China
- Division of Pulmonary, Critical Care and Sleep Medicine, University of Cincinnati College of Medicine, Cincinnati, OH, United States of America
- * E-mail: (TL); (JJY)
| | - Taiying Lu
- Department of Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan Province, People's Republic of China
- * E-mail: (TL); (JJY)
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Truby LK, Topkara VK. Angiopoietin-2: marker or mediator of angiogenesis in continuous-flow left ventricular assist device patients? J Thorac Dis 2016; 8:3042-3045. [PMID: 28066578 DOI: 10.21037/jtd.2016.11.04] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Lauren K Truby
- Department of Medicine, Division of Cardiology, Columbia University Medical Center, New York, NY, USA
| | - Veli K Topkara
- Department of Medicine, Division of Cardiology, Columbia University Medical Center, New York, NY, USA
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