1
|
Li S, Deng G, Su J, Wang K, Wang C, Li L, Song S, Peng X, Chen F. A novel all-trans retinoic acid derivative regulates cell cycle and differentiation of myelodysplastic syndrome cells by USO1. Eur J Pharmacol 2021; 906:174199. [PMID: 34058203 DOI: 10.1016/j.ejphar.2021.174199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2021] [Revised: 05/20/2021] [Accepted: 05/21/2021] [Indexed: 11/16/2022]
Abstract
4-Amino-2-Trifluoromethyl-Phenyl Retinate (ATPR), a novel all-trans retinoic acid (ATRA) derivative, has been demonstrated that it had a variety of anti-tumor effects by exerting regulation on cellular proliferation, apoptosis and differentiation. Here, we found that ATPR is critical for alleviating myelodysplastic syndrome (MDS) and acute myelogenous leukemia. USO1, vesicle transport factor, belongs to tether protein family and involved in endoplasmic reticulum to Golgi trafficking of protein which is important to tumorigenesis. How USO1 contribute to MDS remain elusive. USO1 is aberrantly activated in MDS and AML in vivo and vitro, aberration of which might be a dominant mechanism for MDS cell survival. During the ATPR-induced remission of MDS, in vitro, USO1 presents a time and concentration-dependent decrease. Silencing of USO1 promotes myeloid differentiation of MDS cells and inhibits MDS cellular proliferation while USO1 over-expression has the opposite effect, suggesting that reduction of USO1 enhances the sensitivity of SKM-1 cells to ATPR treatment. Mechanistically, USO1 exerts its oncogenic role by inactivating Raf/ERK signaling, while ATPR is access to revise it. Notably, the activity of Raf/ERK pathway is required for the development and maintenance of MDS cell proliferation. Collectively, our results demonstrate the USO1- Raf/ERK signaling axis in MDS and highlight the negative role of USO1 in ATPR-regulated remission of MDS.
Collapse
Affiliation(s)
- Shufang Li
- Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, China; The Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, China
| | - Ge Deng
- Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, China; The Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, China
| | - Jingwen Su
- Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, China; The Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, China
| | - Ke Wang
- Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, China; The Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, China
| | - Cong Wang
- Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, China; The Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, China
| | - Lanlan Li
- Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, China; The Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, China
| | - Sujing Song
- Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, China; The Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, China
| | - Xiaoqing Peng
- Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, China; The Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, China
| | - Feihu Chen
- Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, China; The Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, China.
| |
Collapse
|
2
|
Xiao N, Hu Y, Juan L. Comprehensive Analysis of Differentially Expressed lncRNAs in Gastric Cancer. Front Cell Dev Biol 2020; 8:557. [PMID: 32695786 PMCID: PMC7338654 DOI: 10.3389/fcell.2020.00557] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Accepted: 06/11/2020] [Indexed: 01/26/2023] Open
Abstract
Gastric cancer (GC) is the fourth most common malignant tumor. The mechanism underlying GC occurrence and development remains unclear. Previous studies have indicated that long non-coding RNAs (lncRNAs) are significantly associated with gastric cancer, but a systematic understanding of the role of lncRNAs in gastric cancer is lacking. In recent years, with the development of next-generation sequencing technology, tens of thousands of lncRNAs have been discovered. However, a large number of unannotated lncRNAs remain unidentified in different tissues, including potential gastric cancer-related lncRNAs. In this study, RNA sequencing (RNA-seq) data from 16 samples of eight gastric cancer patients were obtained and analyzed. A total of 1,854 previously unannotated lncRNAs were identified by ab initio assembly, and 520 differentially expressed lncRNAs were validated in the TCGA expression dataset. Methylation and copy number variation (CNV) array data from the same sample were integrated in the analysis. Changes in DNA methylation levels and CNVs may be responsible for the differential expression of 91 lncRNAs. Differentially expressed lncRNAs were enriched in coexpressed clusters of genes related to functions such as cell signaling, cell cycle, immune response, metabolic processes, angiogenesis, and regulation of retinoic acid (RA) receptors. Finally, a differentially expressed lncRNA, AC004510.3, was identified as a potential biomarker for the prediction of the overall survival of gastric cancer patients.
Collapse
Affiliation(s)
- Nan Xiao
- School of Life Sciences and Technology, Harbin Institute of Technology, Harbin, China.,School of Pharmaceutical Sciences, Tsinghua University, Beijing, China
| | - Yang Hu
- School of Life Sciences and Technology, Harbin Institute of Technology, Harbin, China
| | - Liran Juan
- School of Life Sciences and Technology, Harbin Institute of Technology, Harbin, China
| |
Collapse
|
3
|
Feng Y, Hu S, Li L, Zhang S, Liu J, Xu X, Zhang M, Du T, Du Y, Peng X, Chen F. LncRNA NR-104098 Inhibits AML Proliferation and Induces Differentiation Through Repressing EZH2 Transcription by Interacting With E2F1. Front Cell Dev Biol 2020; 8:142. [PMID: 32296698 PMCID: PMC7136616 DOI: 10.3389/fcell.2020.00142] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Accepted: 02/20/2020] [Indexed: 12/11/2022] Open
Abstract
Abundant evidence has illustrated that long non-coding RNA (lncRNA) plays a vital role in the regulation of tumor development and progression. Most lncRNAs have been proven to have biological and clinical significance in acute myeloid leukemia (AML), but further investigation remains necessary. In this study, we investigated lncRNA NR-104098 in AML and its specific mechanism. The microarray analysis was performed on NB4 cells. Based on the related analysis results, we identified that lncRNA NR-104098 is a suppressor gene that is significantly upregulated in AML cells. LncRNA NR-104098 could inhibit proliferation and induce differentiation in AML cells in vitro and also play main role in the mouse xenografts. Mechanically, it was confirmed that lncRNA NR-104098 may effectively inhibit EZH2 transcription by directly binding to E2F1 and recruiting E2F1 to the EZH2 promoter. In addition, ATPR can significantly increase the expression of lncRNA NR-104098, whereas knocking down NR104098 can inhibit the inhibitory effect of ATPR on the proliferation and induction differentiation of AML cells. Taken together, these results lead to deeper insight into the mechanism of ATPR-induced AML differentiation and prevent proliferation by inhibiting EZH2 on the transcriptional level.
Collapse
Affiliation(s)
- Yubin Feng
- The Key Laboratory of Major Autoimmune Diseases of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, China.,The Key Laboratory of Anti-Inflammatory and Immune Medicines, Ministry of Education, Hefei, China
| | - Shuang Hu
- The Key Laboratory of Major Autoimmune Diseases of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, China.,The Key Laboratory of Anti-Inflammatory and Immune Medicines, Ministry of Education, Hefei, China
| | - Lanlan Li
- The Key Laboratory of Major Autoimmune Diseases of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, China.,The Key Laboratory of Anti-Inflammatory and Immune Medicines, Ministry of Education, Hefei, China
| | | | - Jikang Liu
- The Key Laboratory of Major Autoimmune Diseases of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, China.,The Key Laboratory of Anti-Inflammatory and Immune Medicines, Ministry of Education, Hefei, China
| | - Xiaoling Xu
- The Key Laboratory of Major Autoimmune Diseases of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, China.,The Key Laboratory of Anti-Inflammatory and Immune Medicines, Ministry of Education, Hefei, China
| | - Meiju Zhang
- The Key Laboratory of Major Autoimmune Diseases of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, China.,The Key Laboratory of Anti-Inflammatory and Immune Medicines, Ministry of Education, Hefei, China
| | - Tianxi Du
- The Key Laboratory of Major Autoimmune Diseases of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, China.,The Key Laboratory of Anti-Inflammatory and Immune Medicines, Ministry of Education, Hefei, China
| | - Yan Du
- The Key Laboratory of Major Autoimmune Diseases of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, China.,The Key Laboratory of Anti-Inflammatory and Immune Medicines, Ministry of Education, Hefei, China
| | - Xiaoqing Peng
- The Key Laboratory of Major Autoimmune Diseases of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, China.,The Key Laboratory of Anti-Inflammatory and Immune Medicines, Ministry of Education, Hefei, China
| | - Feihu Chen
- The Key Laboratory of Major Autoimmune Diseases of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, China.,The Key Laboratory of Anti-Inflammatory and Immune Medicines, Ministry of Education, Hefei, China
| |
Collapse
|
4
|
Tomlinson CW, Whiting A. The development of methodologies for high-throughput retinoic acid binding assays in drug discovery and beyond. Methods Enzymol 2020; 637:539-560. [DOI: 10.1016/bs.mie.2020.02.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
|
5
|
Feng Y, Niu R, Cheng X, Wang K, Du Y, Peng X, Chen F. ATPR-induced differentiation and G0/G1 phase arrest in acute promyelocytic leukemia by repressing EBP50/NCF1 complex to promote the production of ROS. Toxicol Appl Pharmacol 2019; 379:114638. [PMID: 31254567 DOI: 10.1016/j.taap.2019.114638] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2019] [Revised: 06/18/2019] [Accepted: 06/21/2019] [Indexed: 12/11/2022]
Abstract
Our previous study has demonstrated that 4-amino-2-trifluoromethyl-phenyl Retinate (ATPR) can induce human leukemia NB4 cells differentiation and G0/G1 phase arrest, but the underlying mechanism is still unclear. In this study, we used proteomics to screen differentially expressed protein profiles in NB4 cells before and after ATPR treatment in vitro. We analyzed the peptides digested from total cellular proteins by reverse phase LC-MS/MS and then performed label-free quantitative analysis. We found 27 significantly up-regulated proteins in the ATPR group compared to the control group. NCF1 was the most significantly changed protein. Immunoprecipitation and double immunofluorescent staining showed that EBP50 bind to NCF1. We further explored the potential molecular mechanism of EBP50/NCF1 complex in ATPR-induced differentiation and G0/G1 phase arrest. The results showed that ATPR remarkably reduced the expression of EBP50 in vivo and in vitro. Interestingly, the reduction of EBP50 contributed to ROS release by modulating the subcellular localization of NCF1. The reduction of EBP50 also contributed to G0/G1 phase arrest by inhibiting CyclinD1, CyclinA2 and CDK4, as well as promoting the differentiation of NB4 cells by increasing the expression of CD11b. Furthermore, we found that the overexpression of EBP50 restrained the effects of ATPR on differentiation and G0/G1 phase arrest in NB4 cells. These results suggest that ATPR-induced differentiation and G0/G1 phase arrest in acute promyelocytic leukemia (APL) by repressing EBP50/NCF1 complex to promote the production of ROS, and the results from in vivo experiments were consistent with those from in vitro studies. Therefore, our finding results suggest that EBP50 may be a new target for ATPR in the treatment of APL.
Collapse
Affiliation(s)
- Yubin Feng
- The Key Laboratory of Major Autoimmune Diseases of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, Anhui, China; The Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Hefei, Anhui, China
| | - Ruowen Niu
- The Key Laboratory of Major Autoimmune Diseases of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, Anhui, China; The Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Hefei, Anhui, China
| | - Xin Cheng
- The Key Laboratory of Major Autoimmune Diseases of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, Anhui, China; The Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Hefei, Anhui, China
| | - Ke Wang
- The Key Laboratory of Major Autoimmune Diseases of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, Anhui, China; The Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Hefei, Anhui, China
| | - Yan Du
- The Key Laboratory of Major Autoimmune Diseases of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, Anhui, China; The Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Hefei, Anhui, China
| | - Xiaoqing Peng
- The Key Laboratory of Major Autoimmune Diseases of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, Anhui, China; The Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Hefei, Anhui, China
| | - Feihu Chen
- The Key Laboratory of Major Autoimmune Diseases of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, Anhui, China; The Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Hefei, Anhui, China.
| |
Collapse
|
6
|
Li G, Wang K, Li Y, Ruan J, Wang C, Qian Y, Zu S, Dai B, Meng Y, Zhou R, Ge J, Chen F. Role of eIF3a in 4-amino-2-trifluoromethyl-phenyl retinate-induced cell differentiation in human chronic myeloid leukemia K562 cells. Gene 2018; 683:195-209. [PMID: 30340049 DOI: 10.1016/j.gene.2018.10.035] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2018] [Revised: 10/08/2018] [Accepted: 10/11/2018] [Indexed: 12/14/2022]
Abstract
4-amino-2-trifluoromethyl-phenyl retinate (ATPR), a novel all-trans retinoic acid (ATRA) derivative designed and synthesized by our team, has been demonstrated its anti-tumor effect through inducing differentiation and inhibiting proliferation. Eukaryotic initiation factor 3a (eIF3a) plays a critical role in affecting tumor cell proliferation and differentiation. However, whether eIF3a is implicated in chronic myeloid leukemia cells differentiation remains unclear. Our results demonstrated that eIF3a could be suppressed by ATPR in K562 cells. The results also confirmed that ATPR could arrest cell cycle in G0/G1 phase and induced differentiation. Moreover, over-expression of eIF3a promoted not only protein expression of c-myc and cyclin D1, but also prevented the expression of p-Raf-1, p-ERK and the myeloid differentiation markers CD11b and CD14 and had an influence on inducing the morphologic mature. However, silencing eIF3a expression by small interfering RNA could have an adverse effect on K562 cells. In addition, PD98059 (a MEK inhibitor) could block cell differentiation of CML cells and contributed to the expression of c-myc and cyclin D1. In conclusion, these results indicated that eIF3a played an important role in ATPR-induced cell differentiation in K562 cells, its mechanism might be related to its ability in regulating the activation of ERK1/2 signaling pathway in vitro.
Collapse
MESH Headings
- Antineoplastic Agents/pharmacology
- Cell Cycle Checkpoints
- Cell Differentiation/drug effects
- Down-Regulation
- Eukaryotic Initiation Factor-3/genetics
- Eukaryotic Initiation Factor-3/metabolism
- Gene Expression Regulation, Neoplastic/drug effects
- Gene Silencing
- Humans
- K562 Cells
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/drug therapy
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/genetics
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/metabolism
- MAP Kinase Signaling System/drug effects
- Retinoids/pharmacology
Collapse
Affiliation(s)
- Ge Li
- Anhui Key Laboratory of Bioactivity of Natural Products, School of Pharmacy, Anhui Medical University, Hefei 230032, China; The Key Laboratory of Anti-inflammatory and Immune medicine, Anhui Medical University, Ministry of Education, Hefei 230032, China
| | - Ke Wang
- Anhui Key Laboratory of Bioactivity of Natural Products, School of Pharmacy, Anhui Medical University, Hefei 230032, China; The Key Laboratory of Anti-inflammatory and Immune medicine, Anhui Medical University, Ministry of Education, Hefei 230032, China
| | - Yue Li
- Anhui Key Laboratory of Bioactivity of Natural Products, School of Pharmacy, Anhui Medical University, Hefei 230032, China; The Key Laboratory of Anti-inflammatory and Immune medicine, Anhui Medical University, Ministry of Education, Hefei 230032, China
| | - Jinging Ruan
- Anhui Key Laboratory of Bioactivity of Natural Products, School of Pharmacy, Anhui Medical University, Hefei 230032, China; The Key Laboratory of Anti-inflammatory and Immune medicine, Anhui Medical University, Ministry of Education, Hefei 230032, China
| | - Cong Wang
- Anhui Key Laboratory of Bioactivity of Natural Products, School of Pharmacy, Anhui Medical University, Hefei 230032, China; The Key Laboratory of Anti-inflammatory and Immune medicine, Anhui Medical University, Ministry of Education, Hefei 230032, China
| | - Yuejiao Qian
- Anhui Key Laboratory of Bioactivity of Natural Products, School of Pharmacy, Anhui Medical University, Hefei 230032, China; The Key Laboratory of Anti-inflammatory and Immune medicine, Anhui Medical University, Ministry of Education, Hefei 230032, China
| | - Shengqin Zu
- Anhui Key Laboratory of Bioactivity of Natural Products, School of Pharmacy, Anhui Medical University, Hefei 230032, China; The Key Laboratory of Anti-inflammatory and Immune medicine, Anhui Medical University, Ministry of Education, Hefei 230032, China
| | - Beibei Dai
- Anhui Key Laboratory of Bioactivity of Natural Products, School of Pharmacy, Anhui Medical University, Hefei 230032, China; The Key Laboratory of Anti-inflammatory and Immune medicine, Anhui Medical University, Ministry of Education, Hefei 230032, China
| | - Yao Meng
- Anhui Key Laboratory of Bioactivity of Natural Products, School of Pharmacy, Anhui Medical University, Hefei 230032, China; The Key Laboratory of Anti-inflammatory and Immune medicine, Anhui Medical University, Ministry of Education, Hefei 230032, China
| | - Renpeng Zhou
- Anhui Key Laboratory of Bioactivity of Natural Products, School of Pharmacy, Anhui Medical University, Hefei 230032, China; The Key Laboratory of Anti-inflammatory and Immune medicine, Anhui Medical University, Ministry of Education, Hefei 230032, China
| | - Jingfang Ge
- Anhui Key Laboratory of Bioactivity of Natural Products, School of Pharmacy, Anhui Medical University, Hefei 230032, China; The Key Laboratory of Anti-inflammatory and Immune medicine, Anhui Medical University, Ministry of Education, Hefei 230032, China
| | - Feihu Chen
- Anhui Key Laboratory of Bioactivity of Natural Products, School of Pharmacy, Anhui Medical University, Hefei 230032, China; The Key Laboratory of Anti-inflammatory and Immune medicine, Anhui Medical University, Ministry of Education, Hefei 230032, China.
| |
Collapse
|
7
|
Ju J, Wang N, Wang J, Wu F, Ge J, Chen F. 4-Amino-2-trifluoromethyl-phenyl retinate inhibits proliferation, invasion, and migration of breast cancer cells by independently regulating CRABP2 and FABP5. Drug Des Devel Ther 2018; 12:997-1008. [PMID: 29731607 PMCID: PMC5927060 DOI: 10.2147/dddt.s151029] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND 4-Amino-2-trifluoromethyl-phenyl retinate (ATPR), a novel retinoid derivative, inhibits proliferation and induces differentiation in many cancer cells. In this study, the inhibitory effects of ATPR on the proliferation, invasion, and migration of breast cancer (BC) cells, and the relationship between ATPR and the expression of the intracellular lipid-binding proteins CRABP2 and FABP5 were investigated. METHODS CRABP2 and FABP5 expression was evaluated in infiltrating breast-infiltrating ductal carcinoma(BIDC) and benign breast fibroma (BBF) by immunohistochemistry and in MCF-7, MDA-MB-231, MDA-MB-435, and MDA-MB-453 cells by immunofluorescence. The inhibition of proliferation by ATPR in these cells was detected by MTT. After downregulation and upregulation of CRABP2 and FABP5 in MCF-7 or MDA-MB-231 cells using siRNA and plasmids, the effect of ATPR on proliferation was detected by MTT and real-time cell analysis, and the effects of ATPR on the invasion and migration of MDA-MB-231 cells were detected using a Boyden chamber assay and a wound healing assay. RESULTS CRABP2 expression was moderately or strongly positive in BIDC and BBF. FABP5 expression was also moderately or strongly positive in BIDC, but weakly positive or negative in BBF. CRABP2 and FABP5 were highly expressed in MCF-7 cells, moderately expressed in MDA-MB-453 cells, and weakly expressed in MDA-MB-435 and MDA-MB-231 cells. ATPR inhibited proliferation more strongly in MCF-7 cells than in other cells. The inhibition of proliferation by ATPR depended on an increase in CRABP2, but not FABP5 expression. A decrease in FABP5 could inhibit the invasion and migration of BC cells. CONCLUSION These findings indicate that ATPR might inhibit proliferation by upregulating CRABP2, and inhibit invasion and migration by downregulating FABP5 in BC cells. These findings may facilitate the use of differentiation therapy in BC.
Collapse
Affiliation(s)
- Jing Ju
- School of Pharmacy, Anhui Medical University, Hefei, People’s Republic of China
- Department of Pharmacy, Anqing Municipal Hospital, Anqing Anhui, People’s Republic of China
| | - Nan Wang
- Department of Pharmacy, Anqing Municipal Hospital, Anqing Anhui, People’s Republic of China
| | - Jiali Wang
- Department of Pharmacy, Anqing Municipal Hospital, Anqing Anhui, People’s Republic of China
| | - Fanrong Wu
- School of Pharmacy, Anhui Medical University, Hefei, People’s Republic of China
| | - Jinfang Ge
- School of Pharmacy, Anhui Medical University, Hefei, People’s Republic of China
| | - Feihu Chen
- School of Pharmacy, Anhui Medical University, Hefei, People’s Republic of China
| |
Collapse
|
8
|
Patrad E, Niapour A, Farassati F, Amani M. Combination treatment of all-trans retinoic acid (ATRA) and γ-secretase inhibitor (DAPT) cause growth inhibition and apoptosis induction in the human gastric cancer cell line. Cytotechnology 2018; 70:865-877. [PMID: 29417442 DOI: 10.1007/s10616-018-0199-3] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2017] [Accepted: 01/24/2018] [Indexed: 01/26/2023] Open
Abstract
Current medication for gastric cancer patients has a low success rate with resistance and side effects. According to recent studies, γ-secretase inhibitors is used as therapeutic drugs in cancer. Moreover, all-trans retinoic acid (ATRA) is a natural compound proposed for the treatment/chemo-prevention of cancers. The aim of this study was to explore the effects of ATRA in combination with N-[N-(3,5-difluorophenacetyl-l-alanyl)]-S-phenylglycine t-butyl ester (DAPT) as γ-secretase inhibitor on viability and apoptosis of the AGS and MKN-45 derived from human gastric cancer. AGS and MKN-45 gastric cancer cell lines were treated with different concentrations of ATRA or DAPT alone or ATRA plus DAPT. The viability, death detection and apoptosis of cells was examined by MTT assay and Ethidium bromide/acridine orange staining. The distribution of cells in different phases of cell cycle was also evaluated through flow cytometry analyses. In addition, caspase 3/7 activity and the expression of caspase-3 and bcl-2 were examined. DAPT and ATRA alone decreased gastric cancer cells viability in a concentration dependent manner. The combination of DAPT and ATRA exhibited significant synergistic inhibitory effects. The greater percentage of cells were accumulated in G0/G1 phase of cell cycle in combination treatment. The combination of DAPT and ATRA effectively increased the proportion of apoptotic cells and the level of caspase 3/7 activities compared to single treatment. Moreover, augmented caspase-3 up-regulation and bcl-2 down-regulation were found following combined application of DAPT and ATRA. The combination of DAPT and ATRA led to more reduction in viability and apoptosis in respect to DAPT or ATRA alone in the investigated cell lines.
Collapse
Affiliation(s)
- Elham Patrad
- Department of Biochemistry, School of Medicine, Ardabil University of Medical Sciences, Ardabil, Iran
| | - Ali Niapour
- Research Laboratory for Embryology and Stem Cells, Department of Anatomical Sciences, School of Medicine, Ardabil University of Medical Sciences, Ardabil, Iran.
| | - Faris Farassati
- Molecular Medicine Laboratory, Department of Medicine, The University of Kansas Medical School (KUMC), Kansas City, KS, USA
| | - Mojtaba Amani
- Department of Biochemistry, School of Medicine, Ardabil University of Medical Sciences, Ardabil, Iran. .,Department of Medicinal Chemistry, School of Pharmacy, Ardabil University of Medical Sciences, Ardabil, Iran.
| |
Collapse
|
9
|
Haffez H, Chisholm DR, Valentine R, Pohl E, Redfern C, Whiting A. The molecular basis of the interactions between synthetic retinoic acid analogues and the retinoic acid receptors. MEDCHEMCOMM 2017; 8:578-592. [PMID: 30108774 PMCID: PMC6072416 DOI: 10.1039/c6md00680a] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2016] [Accepted: 01/17/2017] [Indexed: 01/17/2023]
Abstract
All-trans-retinoic acid (ATRA) and its synthetic analogues EC23 and EC19 direct cellular differentiation by interacting as ligands for the retinoic acid receptor (RARα, β and γ) family of nuclear receptor proteins. To date, a number of crystal structures of natural and synthetic ligands complexed to their target proteins have been solved, providing molecular level snap-shots of ligand binding. However, a deeper understanding of receptor and ligand flexibility and conformational freedom is required to develop stable and effective ATRA analogues for clinical use. Therefore, we have used molecular modelling techniques to define RAR interactions with ATRA and two synthetic analogues, EC19 and EC23, and compared their predicted biochemical activities to experimental measurements of relative ligand affinity and recruitment of coactivator proteins. A comprehensive molecular docking approach that explored the conformational space of the ligands indicated that ATRA is able to bind the three RAR proteins in a number of conformations with one extended structure being favoured. In contrast the biologically-distinct isomer, 9-cis-retinoic acid (; 9CRA), showed significantly less conformational flexibility in the RAR binding pockets. These findings were used to inform docking studies of the synthetic retinoids EC23 and EC19, and their respective methyl esters. EC23 was found to be an excellent mimic for ATRA, and occupied similar binding modes to ATRA in all three target RAR proteins. In comparison, EC19 exhibited an alternative binding mode which reduces the strength of key polar interactions in RARα/γ but is well-suited to the larger RARβ binding pocket. In contrast, docking of the corresponding esters revealed the loss of key polar interactions which may explain the much reduced biological activity. Our computational results were complemented using an in vitro binding assay based on FRET measurements, which showed that EC23 was a strongly binding, pan-agonist of the RARs, while EC19 exhibited specificity for RARβ, as predicted by the docking studies. These findings can account for the distinct behaviour of EC23 and EC19 in cellular differentiation assays, and additionally, the methods described herein can be further applied to the understanding of the molecular basis for the selectivity of different retinoids to RARα, β and γ.
Collapse
Affiliation(s)
- Hesham Haffez
- Department of Chemistry Durham University , South Road , Durham , DH1 3LE , UK .
- Department of Biosciences & Biophysical Sciences , Institute Durham University , South Road , Durham DH1 3LE , UK
- Northern Institute for Cancer Research , Medical School , Newcastle University , Newcastle upon Tyne , NE2 4HH , UK
- Department of Biochemistry and Molecular Biology , Pharmacy College , Helwan University , Cairo , Egypt
| | - David R Chisholm
- Department of Chemistry Durham University , South Road , Durham , DH1 3LE , UK .
| | - Roy Valentine
- High Force Research Ltd. , Bowburn North Industrial Estate , Bowburn , Durham , DH6 5PF , UK
| | - Ehmke Pohl
- Department of Biosciences & Biophysical Sciences , Institute Durham University , South Road , Durham DH1 3LE , UK
| | - Christopher Redfern
- Northern Institute for Cancer Research , Medical School , Newcastle University , Newcastle upon Tyne , NE2 4HH , UK
| | - Andrew Whiting
- Department of Chemistry Durham University , South Road , Durham , DH1 3LE , UK .
| |
Collapse
|
10
|
Fan TT, Cheng Y, Wang YF, Gui SY, Chen FH, Zhou Q, Wang Y. A novel all-trans retinoid acid derivative N-(3-trifluoromethyl- phenyl)- retinamide inhibits lung adenocarcinoma A549 cell migration through down-regulating expression of myosin light chain kinase. Asian Pac J Cancer Prev 2015; 15:7687-92. [PMID: 25292047 DOI: 10.7314/apjcp.2014.15.18.7687] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
AIM To observe the effects of a novel all-trans retinoid acid (ATRA) derivative, N-(3-trifluoromethyl-phenyl)- retinamide (ATPR), on lung adenocarcinoma A549 cells and to explore the potential mechanism of ATPR inhibiting of A549 cell migration. MATERIALS AND METHODS The cytotoxicity of ATRA and ATPR on A549 cells was assessed using MTT assay. Wound healing assays were used to analyze the influences of ATRA, ATPR, ML-7 (a highly selective inhibitor of myosin light chain kinase (MLCK)), PMA (an activator of MAPKs) and PD98059 (a selective inhibitor of ERK1/2) on the migration of A549 cells. Expression of MLCK and phosphorylation of myosin light chain (MLC) were assessed by Western blotting. RESULTS ATRA and ATPR inhibited the proliferation of A549 cells in a dose- and time-dependent manner, and the effect of ATPR was much more remarkable compared with ATRA. Relative migration rate and migration distance of A549 cells both decreased significantly after treatment with ATPR or ML-7. The effect on cell migration of PD98059 combining ATPR treatment was more notable than that of ATPR alone. Moreover, compared with control groups, the expression levels of MLCK and phosphorylated MLC in A549 cells were both clearly reduced in ATRA and ATPR groups. CONCLUSIONS ATPR could suppress the migration and invasion of A549 cells, and the mechanism might be concerned with down- regulating the expression of MLCK in the ERK-MAPK signaling pathway, pointing to therapeutic prospects in lung cancer.
Collapse
Affiliation(s)
- Ting-Ting Fan
- Department of Respiratory Medicine, the First Affiliated Hospital, Anhui Medical University, Hefei, Anhui, China E-mail : ,
| | | | | | | | | | | | | |
Collapse
|