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Dong C, Hui K, Gu J, Wang M, Hu C, Jiang X. Plasma sPD-L1 and VEGF levels are associated with the prognosis of NSCLC patients treated with combination immunotherapy. Anticancer Drugs 2024; 35:418-425. [PMID: 38386011 DOI: 10.1097/cad.0000000000001576] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/23/2024]
Abstract
The clinical significance of plasma soluble programmed cell death ligand 1 (sPD-L1) and vascular endothelial growth factor (VEGF) for non-small cell lung cancer (NSCLC) treated with the combination of anti-angiogenic therapy and anti-PD-L1 antibody (Ab) remain unknown. This study aimed to explore the association between plasma sPD-L1 and VEGF levels and the prognosis of NSCLC patients treated with the combination of Envafolimab and Endostar. Peripheral blood samples were collected from 24 NSCLC patients at baseline and after 6 weeks of treatment and were detected for sPD-L1 and VEGF levels. Both baseline and posttreatment sPD-L1 were significantly higher in progressive disease (PD) group than in controlled disease (CD) group (median: 77.5 pg/ml vs. 64.6 pg/ml, P = 0.036, median: 8451 pg/ml vs. 5563 pg/ml, P = 0.012). In multivariate analysis, lower baseline sPD-L1 levels were significantly associated with longer progression-free survival (PFS) (HR = 6.834, 95% CI: 1.350-34.592, P = 0.020). There were significantly higher posttreatment VEGF levels in PD group compared with CD group (median: 323.7 pg/ml vs. 178.5 pg/ml, P = 0.009). Higher posttreatment VEGF levels were significantly associated with shorter PFS in multivariate analysis (HR = 5.911, 95% CI: 1.391-25.122, P = 0.016). Plasma sPD-L1 and VEGF levels are associated with the clinical response and prognosis of NSCLC patients treated with the combination of PD-L1 inhibitors and anti-angiogenetic therapy.
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Affiliation(s)
- Changhong Dong
- Department of Oncology, The Affiliated Lianyungang Hospital of Xuzhou Medical University, Lianyungang, Jiangsu Province, China
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Dong C, Hu C, Jiang Y, Hui K, Jiang X. Case report: Envafolimab combined with Endostar in the treatment of advanced non-small cell lung cancer with malignant pleural effusion. Front Oncol 2024; 14:1368059. [PMID: 38638859 PMCID: PMC11024318 DOI: 10.3389/fonc.2024.1368059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Accepted: 03/21/2024] [Indexed: 04/20/2024] Open
Abstract
Malignant pleural effusion (MPE) is one of the common complications of lung cancer. The quality of life and prognoses for MPE patients are significantly compromised. Controlling the production of MPE can relieve patients' symptoms, improve their quality of life, and prolong their survival. This article presents a case of advanced non-small cell lung cancer (NSCLC) with MPE and negative driver genes. The patient received envafolimab and Endostar in combination, resulting in a complete reduction of MPE and durable clinical benefits. The exploratory use of this treatment method improved the quality of life of this patient and has the potential to prolong the survival of this patient.
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Affiliation(s)
| | | | | | - Kaiyuan Hui
- Department of Oncology, The Affiliated Lianyungang Hospital of Xuzhou Medical University, Lianyungang, Jiangsu, China
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Hui K, Dong C, Hu C, Li J, Yan D, Jiang X. VEGFR affects miR-3200-3p-mediated regulatory T cell senescence in tumour-derived exosomes in non-small cell lung cancer. Funct Integr Genomics 2024; 24:31. [PMID: 38363405 DOI: 10.1007/s10142-024-01305-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Revised: 01/15/2024] [Accepted: 01/19/2024] [Indexed: 02/17/2024]
Abstract
Numerous studies have demonstrated that regulatory T (Treg) cells play an important role in the tumour microenvironment (TME). The aim of this study was to investigate whether VEGFR2 affects the expression of miR-3200-3p in exosomes secreted by tumour cells, thereby influencing Treg senescence in the TME. The results showed that VEGFR2 expression level was the highest in Calu-1 cells, and after transfection with si-VEGFR2, the exosomes secreted from Calu-1 cells were extracted and characterised with no significant difference from the exosomes of the untransfected group, but the expression of miR-3200-3p in the exosomes of the transfected si-VEGFR2 group was elevated. The Cell Counting Kit-8 (CCK-8) and flow cytometry (FCM) results suggested that exosomes highly expressing miR-3200-3p could inhibit Treg cell viability and promote apoptosis levels when treated with Treg cells. Detection of the senescence-associated proteins p16 INK4A and MMP3 by western blot (WB) revealed that exosomes highly expressing miR-3200-3p were able to elevate their protein expression levels. Tumour xenograft experiments demonstrated that exosomes with high miR-3200-3p expression promoted Treg cell senescence and inhibited subcutaneous tumour growth in nude mice. Dual-luciferase reporter assays and RNA pull-down assays showed that miR-3200-3p could be linked with DDB1. Overexpression of DDB1 reverses changes in DCAF1/GSTP1/ROS protein expression caused by exosomes with high miR-3200-3p expression. In conclusion, inhibition of VEGFR2 expression in tumour cells promotes the expression of miR-3200-3p in exosomes secreted by tumour cells. miR-3200-3p enters the TME through exosomes and acts on DDB1 in Treg cells to promote senescence of Treg cells to inhibit tumour progression.
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Affiliation(s)
- Kaiyuan Hui
- Department of Oncology, The Affiliated Lianyungang Hospital of Xuzhou Medical University, No. 6 Zhenhua East Road, Lianyungang, 222061, Jiangsu, China
| | - Changhong Dong
- Department of Oncology, The Affiliated Lianyungang Hospital of Xuzhou Medical University, No. 6 Zhenhua East Road, Lianyungang, 222061, Jiangsu, China
| | - Chenxi Hu
- Department of Oncology, The Affiliated Lianyungang Hospital of Xuzhou Medical University, No. 6 Zhenhua East Road, Lianyungang, 222061, Jiangsu, China
| | - Jiawen Li
- Department of Pharmacy, The Affiliated Lianyungang Hospital of Xuzhou Medical University, Lianyungang, Jiangsu, China
| | - Dongyue Yan
- Department of Oncology, The Affiliated Lianyungang Hospital of Xuzhou Medical University, No. 6 Zhenhua East Road, Lianyungang, 222061, Jiangsu, China
| | - Xiaodong Jiang
- Department of Oncology, The Affiliated Lianyungang Hospital of Xuzhou Medical University, No. 6 Zhenhua East Road, Lianyungang, 222061, Jiangsu, China.
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Hu C, Wu S, Sun W, Li J, Hui K, Jiang X. Long noncoding RNA lnc-SNAPC5-3:4 inhibits malignancy by directly upregulating miR-224-3p in non-small cell lung cancer. Heliyon 2024; 10:e24668. [PMID: 38312596 PMCID: PMC10835238 DOI: 10.1016/j.heliyon.2024.e24668] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Revised: 12/24/2023] [Accepted: 01/11/2024] [Indexed: 02/06/2024] Open
Abstract
The mounting body of evidence demonstrates the growing importance of long noncoding RNAs in the advancement of tumors. This study aimed to investigate the molecular mechanism of lnc-SNAPC5-3:4 in non-small cell lung cancer (NSCLC). We investigated the expression of miR-224-3p and lnc-SNAPC5-3:4 in clinical NSCLC samples and NSCLC cell lines using reverse transcription polymerase chain reaction (RT-PCR). In vitro studies, A549 cell growth was estimated using Cell Counting Kit-8 (CCK-8), 5-ethynyl-2'-deoxyuridine (EDU), and flow cytometry assays. In vivo studies, NSCLC tumorigenesis was determined using xenograft tumor mouse models, tumor growth was evaluated using antigen Kiel 67 (Ki67) staining, and tumor apoptosis was detected through terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL) staining. The relationship between lnc-SNAPC5-3:4 and miR-224-3p was determined by luciferase reporter gene assay. Results indicated that the expression of lnc-SNAPC5-3:4 was observed to be downregulated in NSCLC tissues and cell lines. After overexpression of lnc-SNAPC5-3:4 in cultured A549 cells, proliferation decreased and apoptosis increased. Furthermore, the expression of miR-224-3p was targeted and negatively regulated by lnc-SNAPC5-3:4. The lnc-SNAPC5-3:4 upregulation inhibited cell proliferation and promoted apoptosis, which was partially blocked by miR-224-3p overexpression in A549 cells. In addition, we constructed a subcutaneous inoculation model using BALB/c nude mice, and the results indicated that lnc-SNAPC5-3:4 overexpression restrained the growth of subcutaneous tumors, decreased Ki67 expression levels, and increased apoptosis, as indicated by TUNEL staining in nude mice. However, miR-224-3p transfection resulted in the reversal of the inhibitory effect of lnc-SNAPC5-3:4 on tumor growth. In conclusion, our study revealed that lnc-SNAPC5-3:4 inhibits tumor progression in NSCLC by targeting miR-224-3p. This study provides a potential therapeutic target for inhibiting NSCLC progression.
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Affiliation(s)
- Chenxi Hu
- Department of Oncology, The Affiliated Lianyungang Hospital of Xuzhou Medical University, Lianyungang, 222061, Jiangsu, China
| | - Shuo Wu
- Department of Oncology, Lianyungang Clinical College of Nanjing Medical University, Lianyungang, 222061, Jiangsu, China
| | - Wen Sun
- Department of Oncology, The Affiliated Lianyungang Hospital of Xuzhou Medical University, Lianyungang, 222061, Jiangsu, China
| | - Jiawen Li
- Department of Pharmacy, The Affiliated Lianyungang Hospital of Xuzhou Medical University, Lianyungang, 222061, Jiangsu, China
| | - Kaiyuan Hui
- Department of Oncology, The Affiliated Lianyungang Hospital of Xuzhou Medical University, Lianyungang, 222061, Jiangsu, China
| | - Xiaodong Jiang
- Department of Oncology, The Affiliated Lianyungang Hospital of Xuzhou Medical University, Lianyungang, 222061, Jiangsu, China
- Department of Oncology, Lianyungang Clinical College of Nanjing Medical University, Lianyungang, 222061, Jiangsu, China
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Lee Y, Hui J, Leung C, Tsang C, Hui K, Tang P, Dee E, Ng K, Mcbride S, Nguyen P, Zhou J, Tse G, Ng C. Major adverse cardiovascular events of enzalutamide versus abiraterone in prostate cancer: A prospective cohort study. Eur Urol 2023. [DOI: 10.1016/s0302-2838(23)01239-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
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Gu G, Hu C, Hui K, Zhang H, Chen T, Zhang X, Jiang X. Exosomal miR-136-5p Derived from Anlotinib-Resistant NSCLC Cells Confers Anlotinib Resistance in Non-Small Cell Lung Cancer Through Targeting PPP2R2A. Int J Nanomedicine 2021; 16:6329-6343. [PMID: 34556984 PMCID: PMC8455141 DOI: 10.2147/ijn.s321720] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Accepted: 08/30/2021] [Indexed: 12/15/2022] Open
Abstract
Background Anlotinib resistance is a challenge for advanced non-small cell lung cancer (NSCLC). Understanding the underlying mechanisms against anlotinib resistance is of great importance to improve prognosis and treatment of patients with advanced NSCLC. Methods RT-qPCR assay was used to assess the level of miR-136-5p in anlotinib-resistant NSCLC cells and exosomes derived from anlotinib-resistant NSCLC cells. In addition, miR-136-5p level in tumor tissues from patients who exhibited a poor response to anlotinib therapy and patients who were therapy naïve or patients who exhibited a positive response to anlotinib therapy was detected by RT-qPCR assay. Results In this study, we found that high levels of plasma exosomal miR-136-5p is correlated with clinically poor anlotinib response. In addition, anlotinib-resistant NSCLC cells promoted parental NSCLC cell proliferation via transferring functional miR-136-5p from anlotinib-resistant NSCLC cells to parental NSCLC cells via exosomes. Moreover, exosomal miR-136-5p could endow NSCLC cells with anlotinib resistance by targeting PPP2R2A, leading to the activation of Akt pathway. Furthermore, miR-136-5p antagomir packaging into anlotinib-resistant NSCLC cell-derived exosomes functionally restored NSCLC cell anlotinib sensitivity in vitro. Animal studies showed that A549/anlotinib cell-derived exosomal miR-136-5p agomir promoted A549 cell anlotinib resistance in vivo. Conclusion Collectively, these findings indicated that anlotinib-resistant NSCLC cell-derived exosomal miR-136-5p confers anlotinib resistance in NSCLC cells by targeting PPP2R2A, indicating miR-136-5p may act as a potential biomarker for anlotinib response in NSCLC.
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Affiliation(s)
- Guoqing Gu
- Department of Oncology, The Affiliated Lianyungang Hospital of Xuzhou Medical University, Lianyungang, Jiangsu, 222000, People's Republic of China
| | - Chenxi Hu
- Department of Oncology, The Affiliated Lianyungang Hospital of Xuzhou Medical University, Lianyungang, Jiangsu, 222000, People's Republic of China
| | - Kaiyuan Hui
- Department of Oncology, The Affiliated Lianyungang Hospital of Xuzhou Medical University, Lianyungang, Jiangsu, 222000, People's Republic of China
| | - Huiqin Zhang
- Department of Oncology, The Affiliated Lianyungang Hospital of Xuzhou Medical University, Lianyungang, Jiangsu, 222000, People's Republic of China
| | - Ting Chen
- Department of Oncology, The Affiliated Lianyungang Hospital of Xuzhou Medical University, Lianyungang, Jiangsu, 222000, People's Republic of China
| | - Xin Zhang
- Lianyungang Clinical College of Nanjing Medical University, Lianyungang, Jiangsu, People's Republic of China
| | - Xiaodong Jiang
- Department of Oncology, The Affiliated Lianyungang Hospital of Xuzhou Medical University, Lianyungang, Jiangsu, 222000, People's Republic of China
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Gu G, Hu C, Hui K, Chen T, Zhang H, Jiang X. NEAT 1 knockdown enhances the sensitivity of human non-small-cell lung cancer cells to anlotinib. Aging (Albany NY) 2021; 13:13941-13953. [PMID: 33982669 PMCID: PMC8202848 DOI: 10.18632/aging.203004] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Accepted: 03/23/2021] [Indexed: 12/14/2022]
Abstract
Anlotinib treatment of non-small cell lung cancer (NSCLC) is hindered by drug insensitivity. Downregulation of long non-coding RNA (lncRNA) NEAT1 can suppress the proliferation and invasion by NSCLC cells. This study explored the role of the combination of anlotinib with NEAT1 knockdown on NSCLC progression. A549 and NCI-H1975 cells were used to evaluate the effect of anlotinib with NEAT 1 knockdown on NSCLC cells in vitro. The proliferation, invasion, migration, and apoptosis of NSCLC cells were evaluated with CCK-8 assays, EdU staining, Transwell assays, and flow cytometry. The antitumor effect of anlotinib with NEAT 1 knockdown was further explored in a mouse xenograft model. NEAT 1 knockdown enhanced the inhibitory effect of anlotinib on NSCLC cell proliferation, migration, and invasion. NEAT 1 knockdown also increased the pro-apoptotic and cytotoxic effects of anlotinib through downregulation of the Wnt/β-catenin signaling pathway. The inhibitory effect of anlotinib on tumor growth was boosted in the presence of NEAT 1 knockdown in vivo. NEAT 1 knockdown promoted NSCLC cell sensitivity to anlotinib in vitro and in vivo. Thus, combined treatment of anlotinib with NEAT 1 knockdown may provide a new combined therapeutic approach for NSCLC patients.
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Affiliation(s)
- Guoqing Gu
- Department of Oncology, The Affiliated Lianyungang Hospital of Xuzhou Medical University, Lianyungang, Jiangsu 222000, China
| | - Chenxi Hu
- Department of Oncology, The Affiliated Lianyungang Hospital of Xuzhou Medical University, Lianyungang, Jiangsu 222000, China
| | - Kaiyuan Hui
- Department of Oncology, The Affiliated Lianyungang Hospital of Xuzhou Medical University, Lianyungang, Jiangsu 222000, China
| | - Ting Chen
- Department of Oncology, The Affiliated Lianyungang Hospital of Xuzhou Medical University, Lianyungang, Jiangsu 222000, China
| | - Huiqin Zhang
- Department of Oncology, The Affiliated Lianyungang Hospital of Xuzhou Medical University, Lianyungang, Jiangsu 222000, China
| | - Xiaodong Jiang
- Department of Oncology, The Affiliated Lianyungang Hospital of Xuzhou Medical University, Lianyungang, Jiangsu 222000, China
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Hu R, Li T, Hui K, Chen Z, Wang N, Wu X, Ge L, Zhou L. Apatinib sensitizes chemoresistant NSCLC cells to doxetaxel via regulating autophagy and enhances the therapeutic efficacy in advanced and refractory/recurrent NSCLC. Mol Med Rep 2020; 22:3935-3943. [PMID: 32901884 PMCID: PMC7533512 DOI: 10.3892/mmr.2020.11492] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Accepted: 07/21/2020] [Indexed: 12/14/2022] Open
Abstract
The prognosis of advanced non-small cell lung cancer (NSCLC) is poor; therefore, identifying novel treatment strategies for patients with NSCLC is important. The present study aimed to investigate the efficacy of apatinib plus docetaxel vs. docetaxel alone, as well as their effects on regulating autophagy markers in patients with advanced NSCLC. Furthermore, it was evaluated whether apatinib sensitized chemoresistant NSCLC cells to docetaxel via regulating autophagy. A total of 39 patients with advanced NSCLC were consecutively enrolled and treated with apatinib plus docetaxel (n=19) or docetaxel alone (n=20) for four treatment cycles. The treatment response, adverse events and expression levels of autophagy markers [(light chain 3 α (LC3A) and Beclin-1] were evaluated in tumor samples, which were obtained via biopsy, before treatment and after 2-cycle treatment. In addition, in a mechanistic in vitro experiment, apatinib, docetaxel, the autophagy activator rapamycin and the autophagy inhibitor 3-methyladenine (3-MA) were used to treat docetaxel-resistant A549 (A549/DTX) cells alone or in various combinations. The expression levels of LC3A, Beclin-1, poly (ADP) ribose polymerase (PARP) and phosphorylated (p)-AKT were detected via western blotting, while the cell apoptosis rate was detected with an Annexin V/PI assay. The overall remission rate (37 vs. 10%; P=0.047) and disease control rate (84 vs. 45%; P=0.011) were increased in the Apatinib plus docetaxel group compared with the Docetaxel group. Most of the adverse events were mild and tolerable, and there was no difference between the two groups except for total hypertension and hand-foot syndrome, which were higher in the Apatinib plus docetaxel group). Compared with the levels prior to treatment, Beclin-1 and LC3A remained unchanged post-treatment in the Apatinib plus docetaxel group, while they were increased in the Docetaxel group. Docetaxel increased LC3A, Beclin-1 and p-AKT expression levels, PARP cleavage and the cell apoptosis rate in A549/DTX cells, and rapamycin further enhanced, while 3-MA reduced these effects of docetaxel. Moreover, apatinib repressed LC3A, Beclin-1, p-AKT expression levels and promoted the cell apoptosis rate in A549/DTX cells and docetaxel-treated A549/DTX cells. In conclusion, apatinib synergize the effect of docetaxel in treating patients with advanced NSCLC and chemoresistant NSCLC cells via inhibiting autophagy.
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Affiliation(s)
- Rong Hu
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| | - Tao Li
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| | - Kaiyuan Hui
- Tumor Laboratory, Department of Oncology, The First People's Hospital of Lianyungang, Lianyungang, Jiangsu 222006, P.R. China
| | - Zi Chen
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| | - Nan Wang
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| | - Xingping Wu
- Department of Respiratory and Critical Care Medicine, The First People's Hospital of Lianyungang, Lianyungang, Jiangsu 222006, P.R. China
| | - Linyang Ge
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| | - Linfu Zhou
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
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Hu C, Hui K, Jiang X. Effects of microRNA regulation on antiangiogenic therapy resistance in non-small cell lung cancer. Biomed Pharmacother 2020; 131:110557. [PMID: 32836072 DOI: 10.1016/j.biopha.2020.110557] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Revised: 07/24/2020] [Accepted: 07/26/2020] [Indexed: 12/28/2022] Open
Abstract
Antiangiogenic drugs have become a standard therapeutic regimen for advanced non-small cell lung cancer (NSCLC); however, many issues remain to be solved. Identifying specific markers to predict patient response to antiangiogenic drugs to ensure therapeutic efficacy would increase their clinical benefit. MicroRNAs (miRNAs) are involved in the process of resistance to antiangiogenic therapy, as they regulate various key signaling pathways. Therefore, miRNAs may be used as targets for reversing tumor resistance to antiangiogenic therapy. This article reviews the molecular mechanisms of antiangiogenic therapy resistance and the specific mechanisms of miRNA regulation of resistance. Signal transducer and activator of transcription 3 (STAT3) is one of multiple target genes of miRNAs, and is closely related to antiangiogenic research. Thus, it is described separately in this review article.
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Affiliation(s)
- Chenxi Hu
- Department of Oncology, The Affiliated Lianyungang Hospital of Xuzhou Medical University, No.182, Tongguan Road, Lianyungang City 222002, Jiangsu Province, China
| | - Kaiyuan Hui
- Department of Oncology, Lianyungang Clinical Medical College of Nanjing Medical University, No.182, Tongguan Road, Lianyungang City 222002, Jiangsu Province, China.
| | - Xiaodong Jiang
- Department of Oncology, The Affiliated Lianyungang Hospital of Xuzhou Medical University, No.182, Tongguan Road, Lianyungang City 222002, Jiangsu Province, China; Department of Oncology, Lianyungang Clinical Medical College of Nanjing Medical University, No.182, Tongguan Road, Lianyungang City 222002, Jiangsu Province, China.
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Liang L, Wen Y, Hui K, Jiang X. Safety and efficacy of PD-1 blockade-activated multiple antigen specific cellular therapy alone or in combination with apatinib in patients with advanced solid tumors: A pooled analysis of two prospective trials. J Clin Oncol 2019. [DOI: 10.1200/jco.2019.37.15_suppl.e14014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
e14014 Background: The cancer-cell-killing property of Multiple Antigen Specific Cellular Therapy (MASCT) may be enhanced by blocking PD-1 in vitro and reversing vascular endothelial growth factor (VEGF)/VEGF receptor 2-mediated immunosuppression with apatinib. We analyzed pooled data from our phase Ⅰ/Ⅱ trials to assess the toxicity and efficacy of PD-1 blockade (SHR-1210)-activated MASCT (aMASCT) alone or in combination with apatinib in patients with advanced solid tumors. Methods: Patients with selected types of advanced solid tumors received aMASCT alone (n = 32) or aMASCT plus apatinib (500 mg q.d., n = 38) after standard treatment. The primary endpoint was the safety profile; antitumor response, progression-free survival (PFS), and overall survival (OS) were the secondary endpoints. Circulating regulatory T cells (Tregs) were quantified before and after aMASCT infusion. Results: Treatment-related adverse events (AEs) occurred in 18/32 (56.3%) and 25/38 (65.8%) patients in the aMASCT and aMASCT plus apatinib groups, respectively; fever and chills were the most frequently observed AEs. No serious AEs were reported, and apatinib did not increase immunotherapy-related toxicity. The objective response rate was improved with aMASCT plus apatinib group compared with aMASCT group (34.2% and 18.8%, respectively); PFS was longer (median, 6.0 and 4.5 months, respectively, P < 0.05), but OS was not improved (median, 10.0 and 8.2 months, respectively, P = 0.098). Multivariate analyses indicated that two or more cycles of aMASCT treatment was an independent favorable prognostic factor of PFS and OS. Circulating Tregs decreased in both groups after one cycle of aMASCT treatment (P < 0.05). Conclusions: Treatment with aMASCT plus apatinib was safe and effective in advanced solid tumors. Apatinib plus aMASCT may be beneficial for patients with advanced solid tumors. Clinical trial information: NCT02844881; NCT02858232.
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Affiliation(s)
- Lijun Liang
- Department of Oncology, The Affiliated Lianyungang Hospital of Xuzhou Medical University, Lianyungang, China
| | - Yixuan Wen
- Department of Oncology, Tumor Laboratory.The Affiliated Lianyungang Hospital of Xuzhou Medical University, Jiangsu, People’s Republic of China., Lianyungang, China
| | - Kaiyuan Hui
- Department of Oncology, Tumor Laboratory.The Affiliated Lianyungang Hospital of Xuzhou Medical University, Lianyungang, China
| | - Xiaodong Jiang
- Department of Oncology, Tumor Laboratory.The Affiliated Lianyungang Hospital of Xuzhou Medical University, Lianyungang, China
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11
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Liang L, Hu C, Wen Y, Hui K, Jiang X. High dose apatinib in the reversal of immunosuppressive tumor microenvironment for irradiation therapy in lung carcinoma. J Clin Oncol 2019. [DOI: 10.1200/jco.2019.37.15_suppl.e14503] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
e14503 Background: The purpose of this study was to investigate the potential systemic anti-tumor effects of stereotactic ablative radiotherapy (SABR) and apatinib (a novel vascular endothelial growth factor receptor 2 tyrosine kinase inhibitor) via reversing the immunosuppressive tumor microenvironment for lung carcinoma. Methods: Lewis lung cancer cells were injected into C57BL/6 mice in the right hindlimb (primary tumor; irradiated) and in the left flank (secondary tumor; nonirradiated). When both tumors grew to palpable size, mice were randomly divided into eight treatment groups. These groups received normal saline or three distinct doses of apatinib (50 mg/kg, 100 mg/kg, 200 mg/kg) daily for 7 days, in combination with a single dose of 15 Gy radiotherapy to the primary tumor or no radiotherapy. Further tumor growth/regression of mice was followed and observed. Results: For the single 15 Gy modality, delays in tumor growth could only be observed at the primary tumor. When combining SABR and apatinib 200 mg/kg, significant retardation of both primary and secondary tumor growths could be observed, indicating that an abscopal effect had been induced. Mechanism analysis suggested that programmed death ligand-1 expression increased with SABR and was counteracted by additional apatinib therapy. Furthermore, when apatinib was combined with SABR, the composition of immune cells could be changed. More importantly, this two-pronged approach evoked tumor-antigen-specific immune responses, and the mice were resistant to subsequent tumor rechallenge. Ultimately, long-term survival was improved. Conclusions: Our results suggested that the tumor microenvironment could be managed with high-dose of apatinib, which was effective in eliciting an abscopal effect induced by SABR.
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Affiliation(s)
- Lijun Liang
- Department of Oncology, The Affiliated Lianyungang Hospital of Xuzhou Medical University, Lianyungang, China
| | - Chenxi Hu
- Department of Oncology, Tumor Laboratory.The Affiliated Lianyungang Hospital of Xuzhou Medical University, Jiangsu, People’s Republic of China., Lianyungang, China
| | - Yixuan Wen
- Department of Oncology, Tumor Laboratory.The Affiliated Lianyungang Hospital of Xuzhou Medical University, Jiangsu, People’s Republic of China., Lianyungang, China
| | - Kaiyuan Hui
- Department of Oncology, Tumor Laboratory.The Affiliated Lianyungang Hospital of Xuzhou Medical University, Lianyungang, China
| | - Xiaodong Jiang
- Department of Oncology, Tumor Laboratory.The Affiliated Lianyungang Hospital of Xuzhou Medical University, Lianyungang, China
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Xia Y, Hu C, Lian L, Hui K, Wang L, Qiao Y, Liu L, Liang L, Jiang X. miR‑497 suppresses malignant phenotype in non‑small cell lung cancer via targeting KDR. Oncol Rep 2019; 42:443-452. [PMID: 31115562 DOI: 10.3892/or.2019.7163] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2018] [Accepted: 04/22/2019] [Indexed: 11/05/2022] Open
Abstract
The aim of the present study was to evaluate the expression of microRNA‑497 (miR‑497) in non‑small cell lung cancer (NSCLC) tissues and cell lines, and to investigate possible mechanisms associated with its regulatory role on cell behaviors. The expression level of miR‑497 was evaluated in 15 cases of NSCLC tissues and 8 adjacent normal tissues, and in 8 NSCLC cell lines, including H1975, A549, H358, H1650, H460, Calu‑1, H1299 and H292, by reverse transcription‑quantitative polymerase chain reaction. Effects of miR‑497 overexpression on cell proliferation, invasion, apoptosis and radiosensitivity were examined with a Cell Counting Kit‑8 assay, Matrigel assay, flow cytometry and a clone formation assay in vitro, respectively, and in an in vivo ectopic tumor nude mice model. A dual luciferase reporter assay was employed for interaction between miR‑497 and its target gene kinase insert domain receptor (KDR). A significantly decreased level of miR‑497 was determined in NSCLC tissues, compared with adjacent normal tissues, and Calu‑1 and H1975 exhibited the lowest miR‑497 expression among the 8 NSCLC cell lines. miR‑497 overexpression could inhibit cell proliferation and invasion, promote cancer cell apoptosis and decrease cell clone formation following radiation treatment in vitro, and decrease tumor growth in vivo. Furthermore, a dual luciferase reporter assay revealed that KDR as the target gene for miR‑497. It was demonstrated that miR‑497 was downregulated in NSCLC specimens. Additionally, miR‑497 directly targeted and downregulated KDR expression, and inhibited malignant behaviors of NSCLC cells. These data indicated that miR‑497 could serve as a tumor suppressor gene involved in NSCLC pathogenesis.
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Affiliation(s)
- Youyou Xia
- Department of Oncology, The Affiliated Hospital of Kangda College of Nanjing Medical University, (The First People's Hospital of Lianyungang), Lianyungang, Jiangsu 222002, P.R. China
| | - Chenxi Hu
- Department of Oncology, The Affiliated Lianyungang Hospital of Xuzhou Medical University, Lianyungang, Jiangsu 222002, P.R. China
| | - Lian Lian
- Department of Oncology, Suzhou Xiangcheng People's Hospital, Suzhou, Jiangsu 215131, P.R. China
| | - Kaiyuan Hui
- Department of Oncology, The Affiliated Lianyungang Hospital of Xuzhou Medical University, Lianyungang, Jiangsu 222002, P.R. China
| | - Lei Wang
- Department of Oncology, The Affiliated Lianyungang Hospital of Xuzhou Medical University, Lianyungang, Jiangsu 222002, P.R. China
| | - Yun Qiao
- Department of Oncology, The Affiliated Lianyungang Hospital of Xuzhou Medical University, Lianyungang, Jiangsu 222002, P.R. China
| | - Liang Liu
- Department of Oncology, The Affiliated Lianyungang Hospital of Xuzhou Medical University, Lianyungang, Jiangsu 222002, P.R. China
| | - Lijun Liang
- Department of Oncology, The Affiliated Lianyungang Hospital of Xuzhou Medical University, Lianyungang, Jiangsu 222002, P.R. China
| | - Xiaodong Jiang
- Department of Oncology, The Affiliated Lianyungang Hospital of Xuzhou Medical University, Lianyungang, Jiangsu 222002, P.R. China
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Liang L, Hu C, Wen Y, Zhuang W, Wang L, Xia Y, Hui K, Jiang X. High dose apatinib in the reversal of immunosuppressive tumor microenvironment for irradiation therapy in lung carcinoma. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz073.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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14
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Liang L, Hui K, Hu C, Wen Y, Jiang X. Autophagy inhibition potentiates the anti-angiogenic property of multikinase inhibitor anlotinib through JAK2/STAT3/VEGFA signaling in non-small cell lung cancer cells. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz072.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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15
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Liang L, Hui K, Hu C, Wen Y, Yang S, Zhu P, Wang L, Xia Y, Qiao Y, Sun W, Fei J, Chen T, Zhao F, Yang B, Jiang X. Autophagy inhibition potentiates the anti-angiogenic property of multikinase inhibitor anlotinib through JAK2/STAT3/VEGFA signaling in non-small cell lung cancer cells. J Exp Clin Cancer Res 2019; 38:71. [PMID: 30755242 PMCID: PMC6373028 DOI: 10.1186/s13046-019-1093-3] [Citation(s) in RCA: 106] [Impact Index Per Article: 21.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Accepted: 02/06/2019] [Indexed: 12/24/2022]
Abstract
BACKGROUND The efficacy and safety of multikinase inhibitor anlotinib have been confirmed in the treatment of advanced non-small cell lung cancer (NSCLC). However, the direct functional mechanisms of tumor lethality mediated by anlotinib were not fully elucidated, and the underlying mechanisms related to resistance remain largely elusive. METHODS Cell viability, colony formation, apoptosis and tumor growth assays were performed to examine the effect of anlotinib on lung cancer cells in vitro and in vivo. The punctate patterns of LC3-I/II were detected by confocal microscopy. HUVECs motility was detected using Transwell and scratch wound-healing assay. To visualize the microvessels, tubular formation assay was performed. The expression of LC3-I/II and beclin-1 and the changes of JAK2/STAT3/VEGFA pathway were detected by western blotting. The VEGFA levels in tumor supernatant were measured by ELISA. RESULTS Anlotinib treatment decreased cell viability and induced apoptosis in Calu-1 and A549 cells. Moreover, anlotinib induced human lung cancer cell autophagy in a dose- and time-dependent manner. Blocking autophagy enhanced the cytotoxicity and anti-angiogenic ability of anlotinib as evidenced by HUVECs migration, invasion, and tubular formation assay. Co-administration of anlotinib and chloroquine (CQ) further reduced VEGFA level in the tumor supernatant, compared with that of anlotinib or CQ treatment alone. When autophagy was induced by rapamycin, the JAK2/STAT3 pathway was activated and VEGFA was elevated, which was attenuated after deactivating STAT3 by S3I-201. Further in vivo studies showed that anlotinib inhibited tumor growth, induced autophagy and suppressed JAK2/STAT3/VEGFA pathway, and CQ enhanced this effect. CONCLUSION Anlotinib induced apoptosis and protective autophagy in human lung cancer cell lines. Autophagy inhibition further enhanced the cytotoxic effects of anlotinib, and potentiated the anti-angiogenic property of anlotinib through JAK2/STAT3/VEGFA signaling.
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Affiliation(s)
- Lijun Liang
- Department of Oncology, The Affiliated Lianyungang Hospital of Xuzhou Medical University, Lianyungang, 222000, Jiangsu, China
| | - Kaiyuan Hui
- Department of Oncology, The Affiliated Lianyungang Hospital of Xuzhou Medical University, Lianyungang, 222000, Jiangsu, China
| | - Chenxi Hu
- Department of Oncology, The Affiliated Lianyungang Hospital of Xuzhou Medical University, Lianyungang, 222000, Jiangsu, China
| | - Yixuan Wen
- Department of Oncology, The Affiliated Lianyungang Hospital of Xuzhou Medical University, Lianyungang, 222000, Jiangsu, China
| | - Shikun Yang
- Hepatobiliary/Liver Transplantation Center, the First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China.,Key Laboratory on Living Donor Liver Transplantation of National Health and Family Planning Commission of China, Nanjing, 210029, China
| | - Panrong Zhu
- Department of Oncology, The Affiliated Lianyungang Hospital of Xuzhou Medical University, Lianyungang, 222000, Jiangsu, China.,Department of Radiology 3, General Hospital of Xuzhou Coal Mining Group, the Second Affiliated Hospital of Xuzhou Medical University, Xuzhou, 221002, China
| | - Lei Wang
- Department of Oncology, The Affiliated Lianyungang Hospital of Xuzhou Medical University, Lianyungang, 222000, Jiangsu, China
| | - Youyou Xia
- Department of Oncology, The Affiliated Lianyungang Hospital of Xuzhou Medical University, Lianyungang, 222000, Jiangsu, China
| | - Yun Qiao
- Department of Oncology, The Affiliated Lianyungang Hospital of Xuzhou Medical University, Lianyungang, 222000, Jiangsu, China
| | - Wen Sun
- Department of Oncology, The Affiliated Lianyungang Hospital of Xuzhou Medical University, Lianyungang, 222000, Jiangsu, China
| | - Jiayan Fei
- Department of Oncology, The Affiliated Lianyungang Hospital of Xuzhou Medical University, Lianyungang, 222000, Jiangsu, China
| | - Ting Chen
- Department of Oncology, The Affiliated Lianyungang Hospital of Xuzhou Medical University, Lianyungang, 222000, Jiangsu, China
| | - Fenghua Zhao
- Department of Oncology, The Affiliated Lianyungang Hospital of Xuzhou Medical University, Lianyungang, 222000, Jiangsu, China
| | - Baocheng Yang
- Jiangsu Provincial Institute of Health Emergency, Xuzhou Medical University, Xuzhou, 221002, Jiangsu, China
| | - Xiaodong Jiang
- Department of Oncology, The Affiliated Lianyungang Hospital of Xuzhou Medical University, Lianyungang, 222000, Jiangsu, China.
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16
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Hu C, Zhuang W, Qiao Y, Liu B, Liu L, Hui K, Jiang X. Effects of combined inhibition of STAT3 and VEGFR2 pathways on the radiosensitivity of non-small-cell lung cancer cells. Onco Targets Ther 2019; 12:933-944. [PMID: 30774379 PMCID: PMC6357889 DOI: 10.2147/ott.s186559] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
Purpose The goals of this study were to determine the effects of combined inhibition of STAT3 and vascular endothelial growth factor receptor 2 (VEGFR2) pathways on the radiosensitivity of non-small-cell lung cancer (NSCLC) cells, and to assess the underlying mechanisms. Methods The expressions of VEGFR2, STAT3, related signaling molecules, hypoxia-inducible factor 1-alpha (HIF-1α), and cyclin D1 were determined by Western blotting. Radiosensitivity was assessed using the colony-forming assay, and cell cycle and cell death were analyzed by flow cytometry. A nude mouse xenograft tumor model of Calu-1 cells was established. The hepatorenal toxicity of the above-mentioned treatment on tumor-bearing mice was observed by H&E staining. The expression of STAT3, VEGFR2, HIF-1α, and cyclin D1 of the transplanted tumor tissues was detected by immunohistochemistry. Apoptosis of tumor tissues was evaluated by TUNEL staining. Results In vitro, we selected two cell lines with high expression levels of STAT3, including Calu-1 cells that exhibit high VEGFR2 expression and A549 cells that exhibit low VEGFR2 expression. When apatinib treatment was combined with S3I-201, the expression of VEGFR2, STAT3, and their downstream signaling molecules was significantly decreased (P<0.01). There was an increase in cell death and G2/M phase arrest after treatments, with the most significant changes occurring upon dual inhibition of STAT3 and VEGFR2 (P<0.01). In vivo, combined treatment of radiotherapy and dual inhibition of VEGFR2 and STAT3 was well tolerated and did not deliver additional toxicity. Compared with the control group and the radiation treatment (RT) + apatinib or RT + S3I-201 duplex group, the expression level of STAT3, p-STAT3, VEGFR2, HIF-1α, and cyclin D1 in the triple group (RT + apatinib + S3I-201) was the lowest, and the proportion of apoptotic cells was the highest (P<0.05). Conclusion The combined inhibition of VEGFR2 and STAT3 is effective in enhancing radiosensitizing effects in NSCLC cells.
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Affiliation(s)
- Chenxi Hu
- Tumor Laboratory, Department of Oncology, The Affiliated Lianyungang Hospital of Xuzhou Medical University, Lianyungang City 222002, China, ,
| | - Wei Zhuang
- Department of Oncology, The Affiliated Lianyungang Hospital of Xuzhou Medical University, Lianyungang City 222002, China,
| | - Yun Qiao
- Department of Oncology, The Affiliated Lianyungang Hospital of Xuzhou Medical University, Lianyungang City 222002, China,
| | - Bin Liu
- Department of Oncology, The Affiliated Lianyungang Hospital of Xuzhou Medical University, Lianyungang City 222002, China,
| | - Liang Liu
- Department of Oncology, The Affiliated Lianyungang Hospital of Xuzhou Medical University, Lianyungang City 222002, China,
| | - Kaiyuan Hui
- Tumor Laboratory, Department of Oncology, The Affiliated Lianyungang Hospital of Xuzhou Medical University, Lianyungang City 222002, China, ,
| | - Xiaodong Jiang
- Tumor Laboratory, Department of Oncology, The Affiliated Lianyungang Hospital of Xuzhou Medical University, Lianyungang City 222002, China, , .,Department of Oncology, The Affiliated Lianyungang Hospital of Xuzhou Medical University, Lianyungang City 222002, China,
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17
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Silberzahn R, Uhlmann EL, Martin DP, Anselmi P, Aust F, Awtrey E, Bahník Š, Bai F, Bannard C, Bonnier E, Carlsson R, Cheung F, Christensen G, Clay R, Craig MA, Dalla Rosa A, Dam L, Evans MH, Flores Cervantes I, Fong N, Gamez-Djokic M, Glenz A, Gordon-McKeon S, Heaton TJ, Hederos K, Heene M, Hofelich Mohr AJ, Högden F, Hui K, Johannesson M, Kalodimos J, Kaszubowski E, Kennedy DM, Lei R, Lindsay TA, Liverani S, Madan CR, Molden D, Molleman E, Morey RD, Mulder LB, Nijstad BR, Pope NG, Pope B, Prenoveau JM, Rink F, Robusto E, Roderique H, Sandberg A, Schlüter E, Schönbrodt FD, Sherman MF, Sommer SA, Sotak K, Spain S, Spörlein C, Stafford T, Stefanutti L, Tauber S, Ullrich J, Vianello M, Wagenmakers EJ, Witkowiak M, Yoon S, Nosek BA. Many Analysts, One Data Set: Making Transparent How Variations in Analytic Choices Affect Results. Advances in Methods and Practices in Psychological Science 2018. [DOI: 10.1177/2515245917747646] [Citation(s) in RCA: 267] [Impact Index Per Article: 44.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Twenty-nine teams involving 61 analysts used the same data set to address the same research question: whether soccer referees are more likely to give red cards to dark-skin-toned players than to light-skin-toned players. Analytic approaches varied widely across the teams, and the estimated effect sizes ranged from 0.89 to 2.93 ( Mdn = 1.31) in odds-ratio units. Twenty teams (69%) found a statistically significant positive effect, and 9 teams (31%) did not observe a significant relationship. Overall, the 29 different analyses used 21 unique combinations of covariates. Neither analysts’ prior beliefs about the effect of interest nor their level of expertise readily explained the variation in the outcomes of the analyses. Peer ratings of the quality of the analyses also did not account for the variability. These findings suggest that significant variation in the results of analyses of complex data may be difficult to avoid, even by experts with honest intentions. Crowdsourcing data analysis, a strategy in which numerous research teams are recruited to simultaneously investigate the same research question, makes transparent how defensible, yet subjective, analytic choices influence research results.
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Affiliation(s)
- R. Silberzahn
- Organisational Behaviour, University of Sussex Business School
| | | | - D. P. Martin
- Department of Psychology, University of Virginia
| | - P. Anselmi
- Department of Philosophy, Sociology, Education and Applied Psychology, University of Padua
| | - F. Aust
- Department of Psychology, University of Cologne
| | - E. Awtrey
- Department of Management, University of Cincinnati
| | - Š. Bahník
- Department of Management, Faculty of Business Administration, University of Economics, Prague
| | - F. Bai
- Department of Management and Marketing, Hong Kong Polytechnic University
| | - C. Bannard
- Department of Psychology, University of Liverpool
| | - E. Bonnier
- Department of Economics, Stockholm School of Economics
| | - R. Carlsson
- Department of Psychology, Linnaeus University
| | - F. Cheung
- School of Public Health, University of Hong Kong
| | - G. Christensen
- Berkeley Institute for Data Science, University of California, Berkeley
| | - R. Clay
- Department of Psychology, College of Staten Island, City University of New York
| | - M. A. Craig
- Department of Psychology, New York University
| | - A. Dalla Rosa
- Department of Philosophy, Sociology, Education and Applied Psychology, University of Padua
| | - L. Dam
- Faculty of Economics and Business, University of Groningen
| | - M. H. Evans
- Division of Neuroscience and Experimental Psychology, University of Manchester
| | | | - N. Fong
- Department of Marketing and Supply Chain Management, Temple University
| | - M. Gamez-Djokic
- Department of Management and Organizations, Kellogg School of Management, Northwestern University
| | - A. Glenz
- Department of Psychology, University of Zurich
| | | | - T. J. Heaton
- School of Mathematics and Statistics, University of Sheffield
| | - K. Hederos
- Swedish Institute for Social Research (SOFI), Stockholm University
| | - M. Heene
- Department of Psychology, Ludwig-Maximilians-Universität München
| | | | - F. Högden
- Department of Psychology, University of Cologne
| | - K. Hui
- School of Management, Xiamen University
| | | | | | - E. Kaszubowski
- Department of Psychology, Federal University of Santa Catarina
| | - D. M. Kennedy
- School of Business, University of Washington Bothell
| | - R. Lei
- Department of Psychology, New York University
| | | | - S. Liverani
- School of Mathematical Sciences, Queen Mary University of London
| | - C. R. Madan
- School of Psychology, University of Nottingham
| | - D. Molden
- Department of Psychology, Northwestern University
| | - E. Molleman
- Faculty of Economics and Business, University of Groningen
| | | | - L. B. Mulder
- Faculty of Economics and Business, University of Groningen
| | - B. R. Nijstad
- Faculty of Economics and Business, University of Groningen
| | - N. G. Pope
- Department of Economics, University of Maryland
| | - B. Pope
- Department of Economics, Brigham Young University
| | | | - F. Rink
- Faculty of Economics and Business, University of Groningen
| | - E. Robusto
- Department of Philosophy, Sociology, Education and Applied Psychology, University of Padua
| | - H. Roderique
- Rotman School of Management, University of Toronto
| | - A. Sandberg
- Swedish Institute for Social Research (SOFI), Stockholm University
| | - E. Schlüter
- Department of Social Sciences and Cultural Studies, Institute of Sociology, Justus Liebig University, Giessen
| | - F. D. Schönbrodt
- Department of Psychology, Ludwig-Maximilians-Universität München
| | - M. F. Sherman
- Department of Psychology, Loyola University Maryland
| | | | - K. Sotak
- Department of Marketing and Management, SUNY Oswego
| | - S. Spain
- John Molson School of Business, Concordia University
| | - C. Spörlein
- Lehrstuhl für Soziologie, insb. Sozialstrukturanalyse, Otto-Friedrich-Universität Bamberg
| | - T. Stafford
- Department of Psychology, University of Sheffield
| | - L. Stefanutti
- Department of Philosophy, Sociology, Education and Applied Psychology, University of Padua
| | - S. Tauber
- Faculty of Economics and Business, University of Groningen
| | - J. Ullrich
- Department of Psychology, University of Zurich
| | - M. Vianello
- Department of Philosophy, Sociology, Education and Applied Psychology, University of Padua
| | | | | | - S. Yoon
- Department of Marketing and Supply Chain Management, Temple University
| | - B. A. Nosek
- Department of Psychology, University of Virginia
- Center for Open Science, Charlottesville, Virginia
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Wang H, Ran L, Hui K, Pei X, Wang X, Zheng Y. The inhibitor of apoptosis protein livin is upregulated in psoriasis vulgaris. J Eur Acad Dermatol Venereol 2018; 32:e245-e247. [PMID: 29265512 DOI: 10.1111/jdv.14768] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- H. Wang
- Department of Dermatology; the Second Affiliated Hospital of Xi'an Jiaotong University; Xi'an China
| | - L. Ran
- Department of Dermatology and Venereology; Jingxi Campus; Beijing ChaoYang Hospital; Capital Medical University; Beijing China
| | - K. Hui
- Department of Urology; the First Affiliated Hospital of Xi'an Jiaotong University; Xi'an China
| | - X. Pei
- Department of Urology; the First Affiliated Hospital of Xi'an Jiaotong University; Xi'an China
| | - X. Wang
- Department of Urology; the First Affiliated Hospital of Xi'an Jiaotong University; Xi'an China
| | - Y. Zheng
- Department of Dermatology; the Second Affiliated Hospital of Xi'an Jiaotong University; Xi'an China
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Morarji K, McArdle O, Hui K, Gingras-Hill G, Ahmed S, Greenblatt EM, Warner E, Sridhar S, Ali AMF, Azad A, Hodgson DC. Ovarian function after chemotherapy in young breast cancer survivors. ACTA ACUST UNITED AC 2017; 24:e494-e502. [PMID: 29270058 DOI: 10.3747/co.24.3335] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Background As cure rates for breast cancer improve, there is increasing evidence that late effects of treatment-and impaired fertility in particular-are emerging as important concerns among young breast cancer survivors. Older reports have evaluated the occurrence of amenorrhea after treatment, but few data have been reported about the incidence of biochemical evidence for impaired ovarian function in patients who do not become overtly menopausal. Methods We conducted a cross-sectional study evaluating anti-Müllerian hormone (amh) in premenopausal chemotherapy-treated breast cancer survivors and control patients. Random serum levels of amh and other relevant clinical data were collected for 100 premenopausal chemotherapy-treated breast cancer survivors and 76 control subjects. Subgroup analyses were performed for women with regular menstrual cycles at the time of amh testing. Results After adjustment for age, amh was significantly lower in the overall group of patients receiving chemotherapy (p = 0.002) and in the subgroup reporting normal cycles (p = 0.03). Cyclophosphamide produced a significant dose-dependent reduction in amh (p < 0.001); trastuzumab was associated with increased amh in survivors with normal cycles. Overall, serum amh in survivors was roughly equivalent to that measured in control patients 12 years older. Conclusions Young breast cancer survivors often experience significant impairment of ovarian function despite having normal menstrual cycles after treatment. Those results have important implications for patient counselling and the timing of possible referral to a fertility specialist.
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Affiliation(s)
- K Morarji
- Department of Radiation Oncology, Princess Margaret Hospital
| | - O McArdle
- Department of Radiation Oncology, Princess Margaret Hospital
| | - K Hui
- Department of Radiation Oncology, Princess Margaret Hospital
| | - G Gingras-Hill
- Department of Radiation Oncology, Princess Margaret Hospital
| | - S Ahmed
- Department of Radiation Oncology, Princess Margaret Hospital
| | - E M Greenblatt
- Department of Obstetrics and Gynecology, Mount Sinai Hospital.,University of Toronto
| | - E Warner
- Department of Medical Oncology, Odette Cancer Centre
| | - S Sridhar
- Department of Medical Oncology, Princess Margaret Hospital; and
| | - A M F Ali
- Department of Medical Oncology, Odette Cancer Centre
| | - A Azad
- Pathology and Laboratory Medicine Unit, Mount Sinai Hospital, Toronto, ON
| | - D C Hodgson
- Department of Radiation Oncology, Princess Margaret Hospital
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Liang L, Wang L, Zhu P, Xia Y, Qiao Y, Hui K, Hu C, Ren Y, Jiang X. Apatinib concurrent gemcitabine for controlling malignant ascites in advanced pancreatic cancer patient: A case report. Medicine (Baltimore) 2017; 96:e8725. [PMID: 29381963 PMCID: PMC5708962 DOI: 10.1097/md.0000000000008725] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
RATIONALE Malignant ascites (MA) is one of the poor prognostic factors for advanced pancreatic cancer and can bring about serious symptoms. The improvement of quality of life for patients is priority. However, there is no standard method for the treatment for pancreatic cancer-mediated MA. Apatinib is a novel and highly selective tyrosine kinase inhibitor targeting vascular endothelial growth factor receptor-2. There are no reports of concurrent apatinib with gemcitabine in patients with pancreatic cancer-mediated MA. PATIENT CONCERNS Herein, we presented a 64-year-old man patient who visited hospital due to abdominal pain for 1 month. DIAGNOSES He was initially diagnosed with pancreatic cancer and his first symptom was MA. INTERVENTIONS After failing in tube drainage and gemcitabine therapy, the patient received gemcitabine combined apatinib orally and after administrated 1 month, the MA was evaluated as nearly clear response according to the RECIST 1.1 standard, and without further need of paracentesis. The CEA and CA199 reached the lowest level after administrating for 2.5 months during the treatment process. OUTCOMES 10.5 months following apatinib administration, the patient achieved a progression-free survival for more than 11 months. Hypertension (grade IV), hand-foot syndrome (grade I) and proteinuria (grade II) were observed. LESSONS It indicated that apatinib concurrent gemcitabine may be a superior choice for pancreatic cancer-mediated MA. Further clinical trials required to confirm its efficacy and safety.
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Affiliation(s)
- Lijun Liang
- Department of Radiation Oncology, The Affiliated Lianyungang Hospital of Xuzhou Medical University
- Tumor Laboratory, The Affiliated Lianyungang Hospital of Xuzhou Medical University, Lianyungang, Jiangsu, People's Republic of China
| | - Lei Wang
- Department of Radiation Oncology, The Affiliated Lianyungang Hospital of Xuzhou Medical University
| | - Panrong Zhu
- Department of Radiation Oncology, The Affiliated Lianyungang Hospital of Xuzhou Medical University
- Tumor Laboratory, The Affiliated Lianyungang Hospital of Xuzhou Medical University, Lianyungang, Jiangsu, People's Republic of China
| | - Youyou Xia
- Department of Radiation Oncology, The Affiliated Lianyungang Hospital of Xuzhou Medical University
| | - Yun Qiao
- Department of Radiation Oncology, The Affiliated Lianyungang Hospital of Xuzhou Medical University
| | - Kaiyuan Hui
- Tumor Laboratory, The Affiliated Lianyungang Hospital of Xuzhou Medical University, Lianyungang, Jiangsu, People's Republic of China
| | - Chenxi Hu
- Tumor Laboratory, The Affiliated Lianyungang Hospital of Xuzhou Medical University, Lianyungang, Jiangsu, People's Republic of China
| | - Yan Ren
- Tumor Laboratory, The Affiliated Lianyungang Hospital of Xuzhou Medical University, Lianyungang, Jiangsu, People's Republic of China
| | - Xiaodong Jiang
- Department of Radiation Oncology, The Affiliated Lianyungang Hospital of Xuzhou Medical University
- Tumor Laboratory, The Affiliated Lianyungang Hospital of Xuzhou Medical University, Lianyungang, Jiangsu, People's Republic of China
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Abstract
Tumor development is closely related to angiogenesis, and VEGFR2 plays an important role in tumor angiogenesis. It is broadly expressed in the blood vessels, especially in the microvessels of tumor tissues. Furthermore, VEGFR2 is detected on the surface of the cell membrane in various immune cells, such as dendritic cells, macrophages, and regulatory T cells (Tregs). Tregs, which are one of the key negative regulatory factors in tumor immune microenvironments, show high-level expression of VEGFR2 which participates in the regulation of immunosuppressive function. VEGFR2+ Tregs play a potent suppressive role in the formation of immunosuppressive microenvironments. A large number of reports have proven the synergistic effects between targeted therapy for VEGFR2 and immunotherapy. The depression of VEGFR2 activity on T cells can significantly reduce the infiltration of Tregs into the tumor tissue. Targeted therapy for VEGFR2+ Tregs also provides a new choice for the clinical treatment of malignant solid tumors. In this paper, the role and significance of VEGFR2+ Tregs in tumor immunity in recent years are reviewed.
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Affiliation(s)
- Panrong Zhu
- Tumor Laboratory, Department of Oncology, The Affiliated Lianyungang Hospital of Xuzhou Medical University, Lianyungang, Jiangsu, China
| | - Chenxi Hu
- Tumor Laboratory, Department of Oncology, The Affiliated Lianyungang Hospital of Xuzhou Medical University, Lianyungang, Jiangsu, China
| | - Kaiyuan Hui
- Tumor Laboratory, Department of Oncology, The Affiliated Lianyungang Hospital of Xuzhou Medical University, Lianyungang, Jiangsu, China
| | - Xiaodong Jiang
- Tumor Laboratory, Department of Oncology, The Affiliated Lianyungang Hospital of Xuzhou Medical University, Lianyungang, Jiangsu, China
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Yang Y, Luo H, Hui K, Ci Y, Shi K, Chen G, Shi L, Xu C. Selenite-induced autophagy antagonizes apoptosis in colorectal cancer cells in vitro and in vivo. Oncol Rep 2015; 35:1255-64. [PMID: 26676801 PMCID: PMC4750746 DOI: 10.3892/or.2015.4484] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2015] [Accepted: 11/05/2015] [Indexed: 02/01/2023] Open
Abstract
In the present study, we aimed to investigate the relationship between autophagy and apoptosis in selenite-treated colorectal cancer (CRC) cells. The effects of selenite on HCT116 and SW480 cell apoptosis were investigated with an Annexin V/propidium iodide (PI) double staining kit by flow cytometry. The punctate of LC3 protein following treatment with selenite was observed by a laser scanning confocal microscope and by transmission electron microscopy. Using western blot assays, we detected the apoptotic and autophagic markers in both CRC cells and mouse xenograft tumor models. We found that sodium selenite induced autophagy in the two CRC cell lines. Consistent with the in vitro results, we observed that the expression of autophagy marker LC3 was increased. Finally, we discovered that modulation of reactive oxygen species by MnTMPyP inhibited autophagy, while H2O2 activated autophagy. These results help to elucidate the anticancer effect of selenium, providing further evidence to exploit novel anticancer drugs targeting selenium.
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Affiliation(s)
- Yang Yang
- State Key Laboratory of Medical Molecular Biology, Department of Biochemistry and Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences (CAMS), School of Basic Medicine, Peking Union Medical College (PUMC), Beijing 100005, P.R. China
| | - Hui Luo
- Shenzhen University Health Science Center, Shenzhen 518060, P.R. China
| | - Kaiyuan Hui
- State Key Laboratory of Medical Molecular Biology, Department of Biochemistry and Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences (CAMS), School of Basic Medicine, Peking Union Medical College (PUMC), Beijing 100005, P.R. China
| | - Yali Ci
- State Key Laboratory of Medical Molecular Biology, Department of Biochemistry and Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences (CAMS), School of Basic Medicine, Peking Union Medical College (PUMC), Beijing 100005, P.R. China
| | - Kejian Shi
- State Key Laboratory of Medical Molecular Biology, Department of Biochemistry and Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences (CAMS), School of Basic Medicine, Peking Union Medical College (PUMC), Beijing 100005, P.R. China
| | - Ge Chen
- Department of General Surgery, PUMC Hospital, CAMS, Beijing 100730, P.R. China
| | - Lei Shi
- State Key Laboratory of Medical Molecular Biology, Department of Biochemistry and Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences (CAMS), School of Basic Medicine, Peking Union Medical College (PUMC), Beijing 100005, P.R. China
| | - Caimin Xu
- State Key Laboratory of Medical Molecular Biology, Department of Biochemistry and Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences (CAMS), School of Basic Medicine, Peking Union Medical College (PUMC), Beijing 100005, P.R. China
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23
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Ci Y, Shi K, An J, Yang Y, Hui K, Wu P, Shi L, Xu C. ROS inhibit autophagy by downregulating ULK1 mediated by the phosphorylation of p53 in selenite-treated NB4 cells. Cell Death Dis 2014; 5:e1542. [PMID: 25429619 PMCID: PMC4260759 DOI: 10.1038/cddis.2014.506] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2014] [Revised: 10/06/2014] [Accepted: 10/20/2014] [Indexed: 01/19/2023]
Abstract
Reactive oxygen species (ROS) have an important role in regulating various cellular processes. Our previous study confirmed that selenite, an anti-tumour agent, triggered apoptosis through the production of ROS in multiple types of cancer cells. In this study, we discovered that ROS also inhibited protective autophagy by decreasing the expression of ULK1, an initiator of autophagy, in selenite-treated NB4 cells. Further experiments demonstrated that p-p53 (S392), a phosphorylation event promoted by p70S6K, bound to the promoter of ULK1 and modulated its expression. Experiments in a mouse tumour model with NB4 cells provided in vivo confirmation of the alterations in the p70S6K/p53/ULK1 axis. Collectively, our results show that ROS inhibited autophagy by downregulating the p70S6K/p53/ULK1 axis in selenite-treated NB4 cells.
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Affiliation(s)
- Y Ci
- State Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences and School of Basic Medicine, Department of Biochemistry and Molecular Biology, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
| | - K Shi
- State Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences and School of Basic Medicine, Department of Biochemistry and Molecular Biology, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
| | - J An
- State Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences and School of Basic Medicine, Department of Biochemistry and Molecular Biology, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
| | - Y Yang
- State Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences and School of Basic Medicine, Department of Biochemistry and Molecular Biology, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
| | - K Hui
- State Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences and School of Basic Medicine, Department of Biochemistry and Molecular Biology, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
| | - P Wu
- State Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences and School of Basic Medicine, Department of Biochemistry and Molecular Biology, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
| | - L Shi
- State Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences and School of Basic Medicine, Department of Biochemistry and Molecular Biology, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
| | - C Xu
- State Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences and School of Basic Medicine, Department of Biochemistry and Molecular Biology, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
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24
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Samiee S, Ahmed S, Hui K, Gryfe R, Pollett A, Cino M, Gingras-Hill G, Ng A, Hodgson D. Colorectal Cancer Screening in Cancer Survivors Treated With Radiation Therapy. Int J Radiat Oncol Biol Phys 2014. [DOI: 10.1016/j.ijrobp.2014.05.2091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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25
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Lee DCW, Law AHY, Hui K, Tam AHM, Peiris JSM, Lau ASY. Interferon dysregulation and virus-induced cell death in avian influenza H5N1 virus infections. Hong Kong Med J 2012; 18 Suppl 2:12-6. [PMID: 22311354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2023] Open
Abstract
1. Hyper-induction of cytokines and chemokines was found in human blood macrophages infected with the avian influenza H5N1 and H9N2/G1 viruses, as compared to those infected with human influenza H1N1 virus. 2. IRF3 played a significant role in the hyperinduction of cytokines including IFN-β, IFN-λ1,IFN-α subtypes, MCP-1, and TNF-α, and also played a part in subsequent cytokine-induced cell signalling cascades. 3. Compared with H1N1 viruses, avian influenza viruses including H5N1/97 and its precursors triggered a caspase-mediated but delayed apoptotic response in human macrophages. 4. Therapies that can minimise immunopathology-associated dysregulation of innate immunity without impairing effective host defence may be valuable adjuncts to antiviral therapy.
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Affiliation(s)
- D C W Lee
- Department of Paediatrics and Adolescent Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong
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26
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Wong N, Hui K, Sun F, Yap Y, Ng RC, Chia JW, Ngo L, Lo S. Randomized phase II study of metronomic chemotherapy (MC) plus aromatase inhibitor (AI) versus MC alone in postmenopausal hormone receptor-positive, metastatic breast cancer (MBC), with correlative circulating endothelial cell (CEC), circulating endothelial progenitor cell (CEP), VEGF, and VEGFR levels. J Clin Oncol 2010. [DOI: 10.1200/jco.2010.28.15_suppl.tps127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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27
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Hui K, Kucera J, Henderson JT. Differential sensitivity of skeletal and fusimotor neurons to Bcl-2-mediated apoptosis during neuromuscular development. Cell Death Differ 2007; 15:691-9. [PMID: 18097449 DOI: 10.1038/sj.cdd.4402294] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Proper development of the nervous system requires that a carefully controlled balance be maintained between both proliferation and neuronal survival. The process of programmed cell death is believed to play a key role in regulating levels of neuronal survival, in large part through the action of antiapoptotic proteins, such as Bcl-2. Consistent with this, Bcl-2 has been shown to be a key regulator of apoptotic signaling in post-mitotic neurons. However, we still know remarkably little regarding the role that Bcl-2 plays in regulating the survival of specific motor neuron populations. In the present study, we have examined somatic motor neurons of the lumbar spinal cord, and branchiomotor neurons of the facial nucleus in bcl-2-null mice to determine the differential dependence among motor neuron populations with respect to Bcl-2-mediated survival. Examination of neuronal and axon number, axonal area, and the distribution of axonal loss in bcl-2-null mice demonstrates that, in contrast to the great majority of alpha motor neurons, gamma motor neurons exhibit a unique dependence upon bcl-2 for survival. These results demonstrate, for the first time, the connection between Bcl-2 expression, motor neuron survival, and the establishment of different motor populations.
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Affiliation(s)
- K Hui
- Graduate Department of Pharmaceutical Sciences, Leslie Dan Faculty of Pharmacy, University of Toronto, Ontario, Canada
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28
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Tan E, Hsu A, Eng P, Tan K, Lee P, Raghuram J, Lo C, Loo C, Cheah F, Toh C, Leong S, Lim W, Lau J, Hui K. P-123 Molecular profiling of lung cancers: Can it be used as a clinicaltool? Lung Cancer 2005. [DOI: 10.1016/s0169-5002(05)80617-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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29
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Abstract
In animal studies, acupuncture has been shown to be sympathoinhibitory, but it is unknown if acupuncture is sympathoinhibitory in humans. Nineteen healthy volunteers underwent mental stress testing pre- and postacupuncture. Muscle sympathetic nerve activity (MSNA), blood pressure, and heart rate during mental stress were compared pre- and postacupuncture. Control acupuncture consisted of acupuncture at nonacupoints and "no-needle" acupuncture. Acupuncture had no effect on resting MSNA, blood pressure, or heart rate. After real acupuncture, the increase in mean arterial pressure (pre- vs. postacupuncture 4.5 vs. 1.7 mmHg, P < 0.001), but not MSNA or heart rate, was blunted during mental stress. Similarly, following nonacupoint acupuncture, the increase in mean arterial pressure was blunted during mental stress (5.4 vs. 2.9 mmHg, P < 0.0003). No-needle acupuncture had no effect on these variables. In conclusion, acupuncture at traditional acupoints, nonacupoints, and no-needle acupuncture does not modulate baseline MSNA or MSNA responses to mental stress in normal humans. Acupuncture significantly attenuates the increase in blood pressure during mental stress. Needling nonacupoints, but not "no-needle" acupuncture, have a similar effect on blood pressure.
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Affiliation(s)
- H R Middlekauff
- University of California Los Angeles Department of Medicine (Cardiology), Los Angeles 90095, USA.
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30
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Abstract
Extensive palatal defects cause substantial morbidity, including nasal regurgitation, poor oral hygiene, loose-fitting obturators, and difficulty with speech. Microvascular techniques allow the surgeon to repair these complex defects with a one-stage reconstruction, in contrast to possible multistage local or regional flap reconstruction. In this retrospective review, the authors present their 5-year experience with free flap coverage of extensive palatal defects. From 1993 to 1998, 6 patients underwent free flap coverage of large palatal defects. The etiology of the large palatal defects included trauma (N = 1), neoplasm (N = 4), and a recurrent congenital cleft palatal fistula (N = 1). Three patients underwent osteocutaneous radial forearm flaps and 1 patient underwent a fasciocutaneous radial forearm flap. The remaining 2 patients underwent rectus abdominis muscle flaps. The ipsilateral facial artery and vein were used as the recipient vessels in all patients. There were no intraoperative complications (surgical or anesthetic). Postoperatively, 2 patients had surgical evacuation of small flap hematomas. One patient underwent revision of the fasciocutaneous flap. All flaps survived. In our experience, the benefits of free flap reconstruction of complex palatal fistulas seem to outweigh the risks of the operation, with reliable long-term results.
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Affiliation(s)
- A E Turk
- Division of Plastic and Reconstructive Surgery, Stanford University Medical Center, CA 94305, USA
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31
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Abstract
Contrast-enhanced magnetic resonance imaging (MRI) can be a highly sensitive monitor of tissue blood perfusion. This technique has been used to assess blood flow through liver, kidney, and certain tumors, but has not been widely applied to the study of skeletal muscle circulation. In our study, we used a novel scanning software to obtain contrast-enhanced T2*-weighted gradient echo MRI images of pedicled quadriceps muscle flaps in rabbits in order to study images of arterial, venous, and arterio-venous occlusion. We administered an intravenous bolus of gadoteridol contrast agent at the initiation of scanning, which produces a decrease in T2*-signal and improves the sensitivity of measuring blood perfusion. Within 30 seconds of MRI scanning, control flaps with intact pedicles exhibited a rapid decrease in T2*-signal intensity, indicating adequate perfusion of blood through muscle tissue; however, occluded pedicled flaps showed no significant change in signal intensity, indicating lack of blood perfusion. Differences in signal intensities as measured by MRI between occluded and control flaps were statistically significant (P < 0.05). Selective vascular occlusion of either artery alone, or both artery and vein were detected within 15 minutes, whereas selective venous occlusion could be detected after 2 hours. We conclude that MRI has the ability to assess skeletal muscle perfusion, and is capable of noninvasively evaluating a cross-section of tissue in both superficial and buried flaps. MRI, therefore, may have the potential for evaluating perfusion in muscle flaps (including buried flaps), and other disorders of muscle circulation such as compartment syndrome.
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Affiliation(s)
- K Hui
- Division of Plastic and Reconstructive Surgery, Stanford University School of Medicine, California 94305, USA
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33
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Abstract
Free vascularized fibula bone flap has been widely used in reconstruction of the mandible, long segment defect, congenital pseudarthroses, and osteomyelitis. Such applications stirred an interest in basic studies of bone biology, bone healing process, and incorporation of recipient bone defect. An experimental free vascularized fibula rat model is presented here for such investigations. We performed 16 angiograms and anatomic dissections in eight rats for collecting data on fibular length, blood supply, and the caliber of significant vessels. The fibula was harvested with part of the flexor hallucis longus muscle with an average length of 28 mm. The pedicle can be taken in continuity with the popliteal vessels (average diameter of 0.8 mm and 0.9 mm of artery and vein, respectively, with an average pedicle length of 14 mm). This vascularized fibula bone was harvested and transferred to the groin area of the same rat and anastomosed to the saphenous vessels. Twelve transplantations were performed, with a 7-day flap survival rate of 100%. The free fibula vascularized bone flap in the rat is a reliable model for further investigations.
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Affiliation(s)
- S G Chen
- Division of Plastic and Reconstructive Surgery, Tri-Service General Hospital, National Defense Medical Center, Taiwan, Republic of China
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Abstract
This report describes the economic impact of microsurgical cases and routine plastic surgery cases in our medical center. The study is based on a financial analysis of the practices of two surgeons. Financial data of patient encounters (admission to the hospital or a surgical unit) identified with each surgeon were categorized into microsurgical and related cases and routine cases (including cosmetic procedures and general hand cases). Revenues, costs, and profits were tabulated. Data were analyzed for 2 fiscal years (1994-95 and 1995-96). Analysis of the first fiscal year showed that microsurgery encounters (n = 188) generated $4.4 million in revenue with a profit margin after direct costs of $2.5 million (57 percent) and a net profit, after indirect costs, of $1 million (23 percent). Routine encounters (n = 262) generated $1.7 million with a net loss of -$145,000 after direct and indirect costs. In the second fiscal year, microsurgery encounters (n = 230) had income of $4.7 million, a profit over direct costs of $2.5 million (53 percent), and a net profit after indirect costs of $0.9 million (19 percent). Routine cases (n = 202) in the same period earned $1.3 million with a net loss of -$107,000. This analysis formulates a comprehensive definition of microsurgical practice and shows that cases within this definition generated dramatically higher hospital incomes and profits compared with routine plastic surgical practice. In the circumstances of our medical center, development of this subspecialty is fiscally justifiable.
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Affiliation(s)
- W C Lineaweaver
- Division of Plastic Surgery, Stanford University Medical Center, Calif., USA
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35
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Hui K, French RJ. Molecular basis of μ-conotoxin block of the ionic current through skeletal muscle sodium channels. Comp Biochem Physiol A Mol Integr Physiol 1999. [DOI: 10.1016/s1095-6433(99)90572-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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36
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Lineaweaver WC, Hui K, Yim K, Ruyle M, Shuster B, Eggleston J, Grover S. The role of the plastic surgeon in the management of surgical infection. Plast Reconstr Surg 1999; 103:1553-60. [PMID: 10323687 DOI: 10.1097/00006534-199905060-00001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
At our Medical Center, our reconstructive service has actively sought referrals of acute and chronic infections by declaring an interest in undertaking the integrated management and reconstruction of these cases. The practices of the two senior surgeons were reviewed for three academic years (1992 to 1995). Cases of surgical infection were analyzed as to site, ablative procedures, and reconstructive procedures. In total, 139 patients with 147 infections were identified. Sites of infection included head and neck (9.5 percent), trunk and pelvis (39.5 percent), upper extremity (22 percent), and lower extremity (29 percent). One-hundred thirty-one ablative procedures were done on this group, as were 126 reconstructive procedures, including 17 fasciocutaneous flaps, 26 pedicled muscle flaps, and 28 microsurgical flaps. With a mean follow-up of 14 months, 92 percent of these patients had resolution of infection. The 8 percent failure group included recurrences, amputation, and death. This series demonstrates that a plastic surgery service can attract a diverse population of surgical infections and manage them successfully with ablation and a wide variety of reconstructive procedures. The coordination of ablation and reconstruction may be optimally performed by the plastic surgeon.
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Affiliation(s)
- W C Lineaweaver
- Division of Plastic and Reconstructive Surgery at Stanford University Medical Center, California 94305, USA
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Karanas YL, Yim KK, Johannet P, Hui K, Lineaweaver WC. Use of 20 cm or longer interposition vein grafts in free flap reconstruction of the trunk. Plast Reconstr Surg 1998; 101:1262-7. [PMID: 9529211 DOI: 10.1097/00006534-199804050-00015] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Between January of 1993 and September of 1995, six microsurgical free tissue transplants were performed using saphenous vein grafts ranging from 20 to 39 cm in length. All six free flaps survived. Two wounds were caused by radiation injury and two by tumor resection. The remaining two free flaps were performed for contour deformity and spinal cord coverage. All of the recipient sites were located on the trunk. In each case, an arteriovenous loop was created before the microvascular anastomosis to the free flap. There was one arterial thrombosis requiring thrombectomy and revision of the anastomosis. Three patients developed minor wound complications that responded to local wound care. Each of the flaps successfully provided wound coverage, and in two cases the flaps tolerated further radiation results. Long interposition vein grafts can be used for difficult microsurgical reconstructive procedures with reliable results when no local recipient vessels are available. Versatility is therefore afforded in placement of the flap and the choice of recipient vessels, making this option a useful one in the treatment of complex wounds of the trunk.
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Affiliation(s)
- Y L Karanas
- Division of Hand Surgery and Plastic Surgery, Stanford University Medical Center, Calif 94305, USA
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38
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Bresnick S, Lineaweaver W, Hui K. Acute reconstruction of traumatic injuries of median and ulnar nerves by grafting with intercostal nerves from the rectus muscle: case reports. J Reconstr Microsurg 1997; 13:503-6. [PMID: 9353702 DOI: 10.1055/s-2007-1006431] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
In two cases of complicated hand and wrist injuries for which rectus flaps were used as soft-tissue coverage, intercostal nerves from the rectus muscles were harvested simultaneously to graft significant nerve defects. In one patient, a 7-cm ulnar-nerve defect was bridged with four intercostal nerves. The other patient had a 5-cm median-nerve defect repaired with three intercostal nerves. Both patients recovered either protective or normal sensation; and the patient with the median nerve injury recovered thenar muscle function. Intercostal nerves harvested with rectus muscle flaps can be the basis for acute grafting of nerve defects without using conventional nerve grafts at a traumatic site.
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Affiliation(s)
- S Bresnick
- Division of Hand Surgery, Stanford University Medical Center, Palo Alto, California, USA
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Chang J, Most D, Stelnicki E, Siebert JW, Longaker MT, Hui K, Lineaweaver WC. Gene expression of transforming growth factor beta-1 in rabbit zone II flexor tendon wound healing: evidence for dual mechanisms of repair. Plast Reconstr Surg 1997; 100:937-44. [PMID: 9290662 DOI: 10.1097/00006534-199709001-00016] [Citation(s) in RCA: 138] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
The postoperative outcome of hand flexor tendon repair can be complicated by adhesions between the repair site and surrounding tissue. To date, the biology of hand flexor tendon wound healing remains controversial--both intrinsic (resident tenocyte) and extrinsic (tendon sheath fibroblast and inflammatory cell) processes may contribute to repair. Transforming growth factor beta-1 is a cytokine that plays multiple roles in wound healing but is also implicated in the pathogenesis of excessive scar formation. This study examines the activation of transforming growth factor beta-1 mRNA in a rabbit zone II flexor tendon wound-healing model. Forty New Zealand White rabbit forepaws underwent complete transection and repair of the middle digit flexor digitorum profundus tendon in zone II. Tendons were harvested at increasing time intervals (1, 3, 7, 14, 28, and 56 days) and analyzed by in situ hybridization and immunohistochemistry to determine the expression patterns of transforming growth factor beta-1. A small number of tenocytes exhibited expression of transforming growth factor beta-1 mRNA at baseline in nonwounded control tendon specimens. The surrounding tendon sheath in these control specimens also revealed low numbers of fibroblasts and inflammatory cells expressing transforming growth factor beta-1 mRNA. In contrast, flexor tendons subjected to transection and repair exhibited increased signal for transforming growth factor beta-1 mRNA in both resident tenocytes and infiltrating fibroblasts and inflammatory cells from the tendon sheath. These data demonstrate that (1) normal unwounded tenocytes and tendon sheath cells are capable of transforming growth factor beta-1 production, (2) this cytokine is activated in the tendon wound environment, as evidenced by mRNA upregulation, and (3) the upregulation of this cytokine in both "intrinsic" tenocytes and "extrinsic" tendon sheath fibroblasts and inflammatory cells supports dual mechanisms for tendon repair. Because transforming growth factor beta-1 is thought to contribute to the pathogenesis of excessive scar formation, the findings presented here suggest that perioperative biochemical modulation of transforming growth factor beta-1 levels may help limit flexor tendon adhesion formation.
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Affiliation(s)
- J Chang
- Division of Hand and Plastic Surgery, Stanford University Medical Center, Calif., USA
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40
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Abstract
Early complications following aortofemoral bypass grafting include acute limb ischemia, renal failure, bowel and spinal cord ischemia, and myocardial infarction. Although the literature recognizes these more common complications, we have found very few reports that raised the possibility of an anatomically determined, soft-tissue infarction as a complication of aortofemoral bypass grafting. Our plastic surgery service was consulted in August and October 1992 to examine 2 patients with soft-tissue complications following aortofemoral bypass grafting. Both patients were found to have complete gluteal infarction. Recognition of muscle infarction following aortofemoral grafting must be distinguished from postoperative pressure sores, since the muscle infarction requires prompt and thorough anatomic debridement to prevent in situ muscle liquefaction and sepsis.
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Affiliation(s)
- P R Ho
- Stanford University School of Medicine, CA, USA
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41
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Abstract
A vascularized tibial bone flap based on a single nutrient vessel has been previously proposed for use in long-bone reconstruction. While the routine use of the tibia for donor bone tissue is precluded by its essential weight-bearing function, in select cases it provides a useful alternative to standard donor bone sources. Cadaver dissection was performed to confirm the endosteal and periosteal vascular anatomy of the tibia. The presence of a consistent nutrient vessel was confirmed. Selective dye injection demonstrated a dual cortical blood supply based on both the endosteal nutrient vessel and multiple periosteal perforator vessels. Inclusion of both vascular supplies maximizes perfusion of bone and periosteum, thus potentially optimizing bone healing and osseous union. Based on these findings, the vascularized tibial bone flap was applied to a clinical case. A 45-year-old male veteran sustained a right proximal femur fracture in a motor vehicle accident. Multiple attempts at fusion with open reduction, internal fixation, grafting, and nonvascularized fibular onlay strut with cerclage wires were all unsuccessful. The patient presented with a chronic right femur nonunion with painful pseudoarthrosis; frozen knee joint; and an internally rotated, 20.3-cm shortened, nonfunctional lower limb. Femur length proximal to the nonunion was less than 15 cm. A maximum amputation stump length is recommended for optimal prosthetic function. A 15-cm pedicled tibial bone flap based on the posterior tibial endosteal and periosteal vascular supply was reversed and plated to the proximal femur to provide a stump of adequate length to optimize prosthetic fitting and function. The tibia is essential for normal weight-bearing, but in select cases may be sacrificed for use in long-bone reconstruction. Expanded use of tibial vascularized allografts in long-bone reconstruction may be made possible following future development of effective and safe immunosuppressive therapy. Transfer based on the posterior tibial pedicle, which includes the endosteal nutrient vessel as well as the periosteal supply via the tibialis posterior muscle, maximizes bone perfusion. The pedicle is of sufficient length to be used for positioning the tibia in the thigh or for free transfer to distant sites.
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Affiliation(s)
- M J Fealy
- Division of Plastic and Reconstructive Surgery, Stanford University Medical Center, CA 94305, USA
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Berker AN, Hui K. Phase diagram of the Ising model on the square lattice with crossed diagonal bonds. Phys Rev B Condens Matter 1993; 48:12393-12398. [PMID: 10007604 DOI: 10.1103/physrevb.48.12393] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Abstract
In studying potential inhibitors of prorenin activation, we synthesized stereoisomers of a nonapeptide which spans the putative prorenin cleavage site. Peptide 67 has a D-Leu substitution on the amino side of the sessile bond and peptide 68 has a D-Arg substitution on the carboxy side. Both peptides equally inhibited human urinary kallikrein activity with an IC50 of 5 x 10(-4) mol/l. However, peptide 67 inhibited tryptic prorenin activation more effectively, with an IC50 of 5 x 10(-3) mol/l, than did peptide 68 with an IC50 of 10(-2) mol/l. Although the inhibitory properties of these peptides are weak, our data suggest that peptide analogue inhibitors of prorenin activation can be developed, and that prorenin activating enzyme(s) may be another potential target of renin-angiotensin inhibition.
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Affiliation(s)
- D Dubin
- Division of Vascular Medicine and Atherosclerosis, Brigham and Women's Hospital, Boston, MA 02115
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Affiliation(s)
- K Hui
- Institute of Molecular and Cell Biology, National University of Singapore, Kent Ridge
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Abstract
K36.16 is an AKR H-2k thymoma which expresses an aberrant H-2Dd-like allospecificity, does not have a detectable amount of the H-2Kk syngeneic antigen and grows very easily in syngeneic mice. By DNA-mediated gene transfer experiments, we were able to obtain transformed clones which do express the H-2Kk molecules and are rejected by AKR mice. Southern hybridization was performed to assess whether any gross changes had occurred in the K36.16 H-2K locus or elsewhere in the MHC, which might explain the lack of H-2K expression and/or the presence of the aberrant H-2Dd-like allospecificity. Specific H-2 class I DNA probes were used to compare the K36.16 genomic DNA with normal AKR thymus DNA after digestion with a variety of restriction enzymes. After hybridization with the pH-2IIa probe a 2.8 kb 'Hind III' fragment was identified in the K36.16 genomic DNA which is absent from AKR DNA. The pH-2IIa probe detects the third, transmembrane and cytoplasmic domains of class I genes. Although these changes are indicative of MHC genome modifications it is not yet possible to link these specific Southern blot pattern variations with the phenotypic changes mentioned above.
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Hui K, Festenstein H, de Klein A, Grosveld G, Grosveld F. HLA-DR genotyping by restriction fragment length polymorphism analyses. Immunogenetics 1985; 22:231-9. [PMID: 2995247 DOI: 10.1007/bf00404482] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
We have established unique restriction fragment length polymorphism (RFLP) patterns characteristic of homozygous typing cells (HTCs) for HLA-DR-1 through HLA-DR-8 haplotypes. These RFLP patterns were found to segregate in family members and correlate 100% with HLA-DR antibody phenotyping. The RFLP patterns were used to type chronic myelocytic leukemic cells which have a Philadelphia translocation from 23 randomly selected Caucasoid patients. The results show an alternative method for the determination of the HLA-DR types without using live cells and to study disease association with the HLA-DR region.
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Navarrete C, Jaraquemada D, Hui K, Awad J, Okoye R, Festenstein H. Different functions and associations of HLA-DR and HLA-DQ(DC) antigens shown by serological, cellular and DNA assays. Tissue Antigens 1985; 25:130-41. [PMID: 2988152 DOI: 10.1111/j.1399-0039.1985.tb00428.x] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Two consanguineous Caucasoid HTCs, DHI and FPA, were investigated, the latter having an unusual HLA-DR/DQ(DC) association. Both these HTCs typed clearly as HLA-DRw11. However, while DHI typed as DRw11/DQw3(DC4) as expected, FPA typed as DRw11/DQw1(DC1) instead. Although extremely rare in Caucasoids, DRw11/DQw1 is a common pattern of association in Nigerian Negroids. Southern blots of DNA extracted from EBV cell line derived from FPA, hybridized with HLA-DC alpha and HLA-DC beta probes, confirmed this unusual DRw11/DQw1(DC1) association. In addition the DC alpha probe showed a unique additional restriction fragment length polymorphism (8 kb) attributable to the DX gene in the FPA DNA. When DHI and FPA were used as stimulators in MLC, the patterns to typing responses obtained were not completely concordant although they overlap to some extent. For this reason FPA has been locally designated Dw'F5', distinct from Dw5. Furthermore, the HLA-DQ antigens of the responder cells were not necessarily the same as those of the HTCS to which they gave typing responses (FPA and DHI). Functional studies using these two HTCs showed that the DQ(DC) antigens probably have no direct lymphocyte activating properties but rather have a regulatory role in controlling responses to allodeterminants in MLC.
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Navarrete C, Jaraquemada D, Fainboim L, Karr R, Hui K, Awad J, Bagnara M, Festenstein H. Genetic and functional relationship of the HLA-DR and HLA-DQ antigens. Immunogenetics 1985; 21:97-101. [PMID: 3881342 DOI: 10.1007/bf00372246] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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