1
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Zi Y, Liu L, Gao J, Xu X, Guan Y, Rong Z, Cao Z, Li M, Zeng Z, Fan Q, Tang F, He J, Feng D, Chen J, Dai Y, Huang Y, Nie Y, Pei H, Cai Q, Li Z, Sun L, Deng Y. Phosphorylation of PPDPF via IL6-JAK2 activates the Wnt/β-catenin pathway in colorectal cancer. EMBO Rep 2023; 24:e55060. [PMID: 37477088 PMCID: PMC10481670 DOI: 10.15252/embr.202255060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Revised: 06/26/2023] [Accepted: 07/06/2023] [Indexed: 07/22/2023] Open
Abstract
Inflammation plays an important role in the initiation and progression of colorectal cancer (CRC) and leads to β-catenin accumulation in colitis-related CRC. However, the mechanism remains largely unknown. Here, pancreatic progenitor cell differentiation and proliferation factor (PPDPF) is found to be upregulated in CRC and significantly correlated with tumor-node-metastasis (TNM) stages and survival time. Knockout of PPDPF in the intestinal epithelium shortens crypts, decreases the number of stem cells, and inhibits the growth of organoids and the occurrence of azoxymethane (AOM)/dextran sodium sulfate (DSS)-induced CRC. Mechanistically, PPDPF is found to interact with Casein kinase 1α (CK1α), thereby disrupting its binding to Axin, disassociating the β-catenin destruction complex, decreasing the phosphorylation of β-catenin, and activating the Wnt/β-catenin pathway. Furthermore, interleukin 6 (IL6)/Janus kinase 2 (JAK2)-mediated inflammatory signals lead to phosphorylation of PPDPF at Tyr16 and Tyr17, stabilizing the protein. In summary, this study demonstrates that PPDPF is a key molecule in CRC carcinogenesis and progression that connects inflammatory signals to the Wnt/β-catenin signaling pathway, providing a potential novel therapeutic target.
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Affiliation(s)
- Yuyuan Zi
- Shanghai Institute of Thoracic Oncology, Shanghai Chest HospitalShanghai Jiao Tong University School of MedicineShanghaiChina
- Key Laboratory of Molecular Radiation Oncology, Xiangya HospitalCentral South UniversityChangshaChina
| | - Liyu Liu
- Key Laboratory of Molecular Radiation Oncology, Xiangya HospitalCentral South UniversityChangshaChina
- Hunan International Science and Technology Collaboration Base of Precision Medicine for CancerChangshaChina
| | - Jie Gao
- Key Laboratory of Molecular Radiation Oncology, Xiangya HospitalCentral South UniversityChangshaChina
- Hunan International Science and Technology Collaboration Base of Precision Medicine for CancerChangshaChina
| | - Xu Xu
- Department of PediatricsRuijin HospitalShanghaiChina
| | - Yidi Guan
- Key Laboratory of Molecular Radiation Oncology, Xiangya HospitalCentral South UniversityChangshaChina
- Hunan International Science and Technology Collaboration Base of Precision Medicine for CancerChangshaChina
| | - Zhuoxian Rong
- Key Laboratory of Molecular Radiation Oncology, Xiangya HospitalCentral South UniversityChangshaChina
- Hunan International Science and Technology Collaboration Base of Precision Medicine for CancerChangshaChina
| | - Zhen Cao
- Key Laboratory of Molecular Radiation Oncology, Xiangya HospitalCentral South UniversityChangshaChina
- Hunan International Science and Technology Collaboration Base of Precision Medicine for CancerChangshaChina
| | - Mengwei Li
- Key Laboratory of Molecular Radiation Oncology, Xiangya HospitalCentral South UniversityChangshaChina
- Hunan International Science and Technology Collaboration Base of Precision Medicine for CancerChangshaChina
| | - Zimei Zeng
- Key Laboratory of Molecular Radiation Oncology, Xiangya HospitalCentral South UniversityChangshaChina
- Hunan International Science and Technology Collaboration Base of Precision Medicine for CancerChangshaChina
| | - Qi Fan
- Shanghai Institute of Thoracic Oncology, Shanghai Chest HospitalShanghai Jiao Tong University School of MedicineShanghaiChina
- Key Laboratory of Molecular Radiation Oncology, Xiangya HospitalCentral South UniversityChangshaChina
| | - Feiyu Tang
- Key Laboratory of Molecular Radiation Oncology, Xiangya HospitalCentral South UniversityChangshaChina
- Hunan International Science and Technology Collaboration Base of Precision Medicine for CancerChangshaChina
| | - Junju He
- Cancer CenterRenmin Hospital of Wuhan UniversityWuhanChina
| | - Dan Feng
- Department of Oncology, Changhai HospitalSecond Military Medical UniversityShanghaiChina
| | - Jionghuang Chen
- Department of General Surgery, Sir Run Run Shaw HospitalZhejiang UniversityHangzhouChina
| | - Yuedi Dai
- Department of Medical Oncology, Minhang BranchFudan University Shanghai Cancer CenterShanghaiChina
| | - Yufeng Huang
- Department of OncologyJingjiang People's Hospital Affiliated to Yangzhou UniversityJingjiangChina
| | - Yingjie Nie
- NHC Key Laboratory of Pulmonary Immune‐Related DiseasesGuizhou Provincial People's HospitalGuiyangChina
| | - Haiping Pei
- Department of General Surgery, Xiangya HospitalCentral South UniversityChangshaChina
| | - Qingping Cai
- Department of General Surgery, Shanghai East Hospital, School of MedicineTongji UniversityShanghaiChina
| | - Zhi Li
- Key Laboratory of Molecular Radiation Oncology, Xiangya HospitalCentral South UniversityChangshaChina
- Hunan International Science and Technology Collaboration Base of Precision Medicine for CancerChangshaChina
| | - Lunquan Sun
- Key Laboratory of Molecular Radiation Oncology, Xiangya HospitalCentral South UniversityChangshaChina
- Hunan International Science and Technology Collaboration Base of Precision Medicine for CancerChangshaChina
| | - Yuezhen Deng
- Shanghai Institute of Thoracic Oncology, Shanghai Chest HospitalShanghai Jiao Tong University School of MedicineShanghaiChina
- Key Laboratory of Molecular Radiation Oncology, Xiangya HospitalCentral South UniversityChangshaChina
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2
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Wang YK, Ma N, Xu S, Huang JY, Ni QZ, Cao HJ, Zheng QW, Zhu B, Xia J, Zhang FK, Ding XF, Qiu XS, Chen TW, Wang K, Chen W, Li ZG, Cheng SQ, Xie D, Li JJ. PPDPF suppresses the development of hepatocellular carcinoma through TRIM21-mediated ubiquitination of RIPK1. Cell Rep 2023; 42:112340. [PMID: 37027301 DOI: 10.1016/j.celrep.2023.112340] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Revised: 11/13/2022] [Accepted: 03/20/2023] [Indexed: 04/08/2023] Open
Abstract
Pancreatic progenitor cell differentiation and proliferation factor (PPDPF) has been reported to play a role in tumorigenesis. However, its function in hepatocellular carcinoma (HCC) remains poorly understood. In this study, we report that PPDPF is significantly downregulated in HCC and the decreased PPDPF expression indicates poor prognosis. In the dimethylnitrosamine (DEN)-induced HCC mouse model, hepatocyte-specific depletion of Ppdpf promotes hepatocarcinogenesis, and reintroduction of PPDPF into liver-specific Ppdpf knockout (LKO) mice inhibits the accelerated HCC development. Mechanistic study shows that PPDPF regulates nuclear factor κB (NF-κB) signaling through modulation of RIPK1 ubiquitination. PPDPF interacts with RIPK1 and facilitates K63-linked ubiquitination of RIPK1 via recruiting the E3 ligase TRIM21, which catalyzes K63-linked ubiquitination of RIPK1 at K140. In addition, liver-specific overexpression of PPDPF activates NF-κB signaling and attenuates apoptosis and compensatory proliferation in mice, which significantly suppresses HCC development. This work identifies PPDPF as a regulator of NF-κB signaling and provides a potential therapeutic candidate for HCC.
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Affiliation(s)
- Yi-Kang Wang
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai 200031, China
| | - Ning Ma
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai 200031, China; Department of Thoracic Surgery, Section of Esophageal Surgery, Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200030, China
| | - Sheng Xu
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai 200031, China
| | - Jing-Yi Huang
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai 200031, China
| | - Qian-Zhi Ni
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai 200031, China; Department of Hepatic Surgery VI, Eastern Hepatobiliary Surgery Hospital, Naval Medical University, Shanghai 200433, China
| | - Hui-Jun Cao
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai 200031, China
| | - Qian-Wen Zheng
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai 200031, China; School of Life Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Bing Zhu
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai 200031, China
| | - Ji Xia
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai 200031, China
| | - Feng-Kun Zhang
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai 200031, China
| | - Xu-Fen Ding
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai 200031, China
| | - Xiao-Song Qiu
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai 200031, China; School of Life Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Tian-Wei Chen
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai 200031, China; Key Laboratory of Integrated Oncology and Intelligent Medicine of Zhejiang Province, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou 310006, China
| | - Kang Wang
- Department of Hepatic Surgery VI, Eastern Hepatobiliary Surgery Hospital, Naval Medical University, Shanghai 200433, China
| | - Wei Chen
- Institute of Clinical Medicine Research, Zhejiang Provincial People's Hospital, Hangzhou Medical College, Hangzhou 310014, China
| | - Zhi-Gang Li
- Department of Thoracic Surgery, Section of Esophageal Surgery, Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200030, China
| | - Shu-Qun Cheng
- Department of Hepatic Surgery VI, Eastern Hepatobiliary Surgery Hospital, Naval Medical University, Shanghai 200433, China
| | - Dong Xie
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai 200031, China; School of Life Science and Technology, ShanghaiTech University, Shanghai 201210, China; NHC Key Laboratory of Food Safety Risk Assessment, China National Center for Food Safety Risk Assessment, Beijing 100022, China.
| | - Jing-Jing Li
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai 200031, China; NHC Key Laboratory of Food Safety Risk Assessment, China National Center for Food Safety Risk Assessment, Beijing 100022, China.
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3
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Ni Q, Zhu B, Ji Y, Zheng Q, Liang X, Ma N, Jiang H, Zhang F, Shang Y, Wang Y, Xu S, Zhang E, Yuan Y, Chen T, Yin F, Cao H, Huang J, Xia J, Ding X, Qiu X, Ding K, Song C, Zhou W, Wu M, Wang K, Lui R, Lin Q, Chen W, Li Z, Cheng S, Wang X, Xie D, Li J. PPDPF Promotes the Development of Mutant KRAS-Driven Pancreatic Ductal Adenocarcinoma by Regulating the GEF Activity of SOS1. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2202448. [PMID: 36453576 PMCID: PMC9839844 DOI: 10.1002/advs.202202448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Revised: 10/11/2022] [Indexed: 06/17/2023]
Abstract
The guanine nucleotide exchange factor (GEF) SOS1 catalyzes the exchange of GDP for GTP on RAS. However, regulation of the GEF activity remains elusive. Here, the authors report that PPDPF functions as an important regulator of SOS1. The expression of PPDPF is significantly increased in pancreatic ductal adenocarcinoma (PDAC), associated with poor prognosis and recurrence of PDAC patients. Overexpression of PPDPF promotes PDAC cell growth in vitro and in vivo, while PPDPF knockout exerts opposite effects. Pancreatic-specific deletion of PPDPF profoundly inhibits tumor development in KRASG12D -driven genetic mouse models of PDAC. PPDPF can bind GTP and transfer GTP to SOS1. Mutations of the GTP-binding sites severely impair the tumor-promoting effect of PPDPF. Consistently, mutations of the critical amino acids mediating SOS1-PPDPF interaction significantly impair the GEF activity of SOS1. Therefore, this study demonstrates a novel model of KRAS activation via PPDPF-SOS1 axis, and provides a promising therapeutic target for PDAC.
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4
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Liu SY, Zou X, Gao X, Zhang YY. De Novo Design of a Highly Selective Nonpeptide Fluorogenic Probe for Chymotrypsin Activity Sensing in a Living System. Anal Chem 2022; 94:17922-17929. [PMID: 36515388 DOI: 10.1021/acs.analchem.2c03933] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Chymotrypsin, an extensively known proteolytic enzyme, plays a substantial role in maintaining physiological functions, including protein digestion, immune response, and tissue repair. To date, intense attention has been focused on the invention of efficient and sensitive chemical tools for chymotrypsin activity measurement. Among them, the "nonpeptide"-based chymotrypsin probe design strategy utilizing the esterase activity of chymotrypsin has been well-developed due to its low cost and high atom-economy feature. However, the ester-bond-based nature of these probes make them possibly vulnerable to esterases and active chemicals. These defects strictly restricted the application of the previously reported probes, especially for imaging in living systems. Therefore, to acquire fluorogenic probes with sufficient stability and specificity for chymotrypsin sensing in a complicated biological environment, a more stable skeleton for nonpeptide-based chymotrypsin probe construction is urgently needed. Herein, a novel nonpeptide-based fluorogenic probe for specific chymotrypsin activity sensing was designed and synthesized by the substitution of an ester-based linker with a heptafluorobutylamide moiety. The acquired probe, named TMBIHF, showed high selectivity toward various enzymes and reactive chemicals, while it retained high sensitivity and catalytic efficiency toward chymotrypsin. Moreover, TMBIHF was successfully applied for monitoring chymotrypsin activity and pancreas development in live zebrafish, specific sensing of exogenous and endogenous chymotrypsin in nude mice, and visualizing chymotrypsin-like activity-dependent cellular apoptosis, thus providing an alternative and reliable way for chymotrypsin-targeted biosensor or prodrug construction.
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Affiliation(s)
- Shi-Yu Liu
- Department of Laboratory Medicine, School of Medicine, Yangtze University, Jingzhou 434023, P. R. China
| | - Xiaoting Zou
- Department of Laboratory Medicine, School of Medicine, Yangtze University, Jingzhou 434023, P. R. China
| | - Xing Gao
- Department of Laboratory Medicine, School of Medicine, Yangtze University, Jingzhou 434023, P. R. China
| | - Yue-Yang Zhang
- Department of Laboratory Medicine, School of Medicine, Yangtze University, Jingzhou 434023, P. R. China
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5
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PPDPF promotes lung adenocarcinoma progression via inhibiting apoptosis and NK cell-mediated cytotoxicity through STAT3. Oncogene 2022; 41:4244-4256. [PMID: 35906391 DOI: 10.1038/s41388-022-02418-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 07/07/2022] [Accepted: 07/13/2022] [Indexed: 11/08/2022]
Abstract
Lung cancer is the most common malignancy and the leading cause of cancer death worldwide, and lung adenocarcinoma (LUAD) is the most prevalent subtype. Considering the emergence of resistance to therapies, it is urgent to develop more effective therapies to improve the prognosis. Here we reported that pancreatic progenitor cell differentiation and proliferation factor (PPDPF) deficiency inhibited LUAD development both in vitro and in vivo. Mechanistically, PPDPF induces hyperactive STAT3 by interfering STAT3-PTPN1 interaction. Activated STAT3 promoted BMPR2 transcription, which further inhibited apoptosis. Moreover, PPDPF reduced NK cell infiltration and activation to develop an immunosuppressive microenvironment, which was also mediated by STAT3. Furthermore, we identified that the expression of PPDPF was positively correlated with the malignant features of LUAD, as well as BMPR2 and p-STAT3 level in clinical samples. Therefore, our study suggests that PPDPF positively regulates BMPR2 expression and facilitates immune escape via regulating STAT3 activity, providing a potential therapy target for LUAD.
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6
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Frias-Soler RC, Kelsey NA, Villarín Pildaín L, Wink M, Bairlein F. Transcriptome signature changes in the liver of a migratory passerine. Genomics 2022; 114:110283. [PMID: 35143886 DOI: 10.1016/j.ygeno.2022.110283] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Revised: 12/13/2021] [Accepted: 01/31/2022] [Indexed: 12/01/2022]
Abstract
The liver plays a principal role in avian migration. Here, we characterised the liver transcriptome of a long-distance migrant, the Northern Wheatear (Oenanthe oenanthe), sampled at different migratory stages, looking for molecular processes linked with adaptations to migration. The analysis of the differentially expressed genes suggested changes in the periods of the circadian rhythm, variation in the proportion of cells in G1/S cell-cycle stages and the putative polyploidization of this cell population. This may explain the dramatic increment in the liver's metabolic capacities towards migration. Additionally, genes involved in anti-oxidative stress, detoxification and innate immune responses, lipid metabolism, inflammation and angiogenesis were regulated. Lipophagy and lipid catabolism were active at all migratory stages and increased towards the fattening and fat periods, explaining the relevance of lipolysis in controlling steatosis and maintaining liver health. Our study clears the way for future functional studies regarding long-distance avian migration.
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Affiliation(s)
- Roberto Carlos Frias-Soler
- Institute of Avian Research, An der Vogelwarte 21, 26386 Wilhelmshaven, Germany; Institute of Pharmacy and Molecular Biotechnology, Heidelberg University, Im Neuenheimer Feld 364, 69120 Heidelberg, Germany.
| | - Natalie A Kelsey
- Institute of Avian Research, An der Vogelwarte 21, 26386 Wilhelmshaven, Germany.
| | - Lilian Villarín Pildaín
- Institute of Pharmacy and Molecular Biotechnology, Heidelberg University, Im Neuenheimer Feld 364, 69120 Heidelberg, Germany
| | - Michael Wink
- Institute of Pharmacy and Molecular Biotechnology, Heidelberg University, Im Neuenheimer Feld 364, 69120 Heidelberg, Germany.
| | - Franz Bairlein
- Institute of Avian Research, An der Vogelwarte 21, 26386 Wilhelmshaven, Germany; Max Planck Institute of Animal Behavior, Am Obstberg 1, 78315 Radolfzell, Germany.
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7
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Hwang E, Kim H, Truong AD, Kim SJ, Song KD. Suppression of the Toll-like receptors 3 mediated pro-inflammatory
gene expressions by progenitor cell differentiation and proliferation factor in
chicken DF-1 cells. JOURNAL OF ANIMAL SCIENCE AND TECHNOLOGY 2022; 64:123-134. [PMID: 35174347 PMCID: PMC8819319 DOI: 10.5187/jast.2021.e130] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/16/2021] [Revised: 11/27/2021] [Accepted: 11/30/2021] [Indexed: 12/12/2022]
Affiliation(s)
- Eunmi Hwang
- Division of Cosmetics and Biotechnology,
College of Life and Health Sciences, Hoseo University, Asan
31499, Korea
| | - Hyungkuen Kim
- Division of Cosmetics and Biotechnology,
College of Life and Health Sciences, Hoseo University, Asan
31499, Korea
| | - Anh Duc Truong
- Department of Agricultural Convergence
Technology, Jeonbuk National University, Jeonju 54896,
Korea
| | - Sung-Jo Kim
- Division of Cosmetics and Biotechnology,
College of Life and Health Sciences, Hoseo University, Asan
31499, Korea
- Corresponding author: Sung-Jo Kim, Division of
Cosmetics and Biotechnology, College of Life and Health Sciences, Hoseo
University, Asan 31499, Korea., Tel: +82-41-540-5571, E-mail:
| | - Ki-Duk Song
- Department of Agricultural Convergence
Technology, Jeonbuk National University, Jeonju 54896,
Korea
- Corresponding author: Ki-Duk Song, Department of
Agricultural Convergence Technology, Jeonbuk National University, Jeonju 54896,
Korea., Tel: +82-63-219-5523, E-mail:
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8
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Yun M, Yingzi L, Jie G, Guanxin L, Zimei Z, Zhen C, Zhi L, Yingjie N, Lunquan S, Tao C, Yuezhen D, Chengzhi Z. PPDPF Promotes the Progression and acts as an Antiapoptotic Protein in Non-Small Cell Lung Cancer. Int J Biol Sci 2022; 18:214-228. [PMID: 34975328 PMCID: PMC8692159 DOI: 10.7150/ijbs.65654] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Accepted: 10/20/2021] [Indexed: 02/07/2023] Open
Abstract
Resistance to radiotherapy is frequently observed in the clinic and leads to poor prognosis of non-small cell lung cancer (NSCLC). How to overcome resistance to radiotherapy is a challenge in the treatment of NSCLC. In this study, PPDPF was found to be upregulated in NSCLC tissues and cell lines, and its expression negatively correlated with the overall survival of patients with NSCLC. PPDPF promoted the growth, colony formation and invasion of lung cancer cells. Moreover, knockout of PPDPF inhibited tumorigenesis in the KL (KrasG12D; LKB1f/f) mouse model of lung cancer. Additionally, overexpression of PPDPF led to radioresistance in lung cancer cells, and knockdown of PPDPF sensitized lung cancer cells to radiotherapy. Mechanistically, PPDPF interacted with BABAM2 (an antiapoptotic protein) and blocked its ubiquitination by MDM2, thus stabilizing BABAM2 and promoting the radioresistance of lung cancer cells. Our present study suggested PPDPF as a therapeutic target in NSCLC.
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Affiliation(s)
- Mu Yun
- Department of Oncology, Xiangya Cancer Center, Xiangya Hospital, Central South University, Changsha 410008, China.,Key Laboratory of Molecular Radiation Oncology Hunan Province, Changsha 410008, China
| | - Li Yingzi
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China
| | - Gao Jie
- Department of Oncology, Xiangya Cancer Center, Xiangya Hospital, Central South University, Changsha 410008, China.,Key Laboratory of Molecular Radiation Oncology Hunan Province, Changsha 410008, China.,Hunan International Science and Technology Collaboration Base of Precision Medicine for Cancer, Changsha 410008, China.,Center for Molecular Imaging of Central South University, Xiangya Hospital, Changsha 410008, China
| | - Liu Guanxin
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China
| | - Zeng Zimei
- Department of Oncology, Xiangya Cancer Center, Xiangya Hospital, Central South University, Changsha 410008, China.,Key Laboratory of Molecular Radiation Oncology Hunan Province, Changsha 410008, China.,Hunan International Science and Technology Collaboration Base of Precision Medicine for Cancer, Changsha 410008, China.,Center for Molecular Imaging of Central South University, Xiangya Hospital, Changsha 410008, China
| | - Cao Zhen
- Department of Oncology, Xiangya Cancer Center, Xiangya Hospital, Central South University, Changsha 410008, China.,Key Laboratory of Molecular Radiation Oncology Hunan Province, Changsha 410008, China.,Hunan International Science and Technology Collaboration Base of Precision Medicine for Cancer, Changsha 410008, China.,Center for Molecular Imaging of Central South University, Xiangya Hospital, Changsha 410008, China
| | - Li Zhi
- Department of Oncology, Xiangya Cancer Center, Xiangya Hospital, Central South University, Changsha 410008, China.,Key Laboratory of Molecular Radiation Oncology Hunan Province, Changsha 410008, China.,Hunan International Science and Technology Collaboration Base of Precision Medicine for Cancer, Changsha 410008, China.,Center for Molecular Imaging of Central South University, Xiangya Hospital, Changsha 410008, China
| | - Nie Yingjie
- NHC Key Laboratory of Pulmonary Immune-related Diseases, Guizhou Provincial People's Hospital; Guiyang 550000, China
| | - Sun Lunquan
- Department of Oncology, Xiangya Cancer Center, Xiangya Hospital, Central South University, Changsha 410008, China.,Key Laboratory of Molecular Radiation Oncology Hunan Province, Changsha 410008, China.,Hunan International Science and Technology Collaboration Base of Precision Medicine for Cancer, Changsha 410008, China.,Center for Molecular Imaging of Central South University, Xiangya Hospital, Changsha 410008, China
| | - Chen Tao
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China
| | - Deng Yuezhen
- Department of Oncology, Xiangya Cancer Center, Xiangya Hospital, Central South University, Changsha 410008, China.,Key Laboratory of Molecular Radiation Oncology Hunan Province, Changsha 410008, China.,Hunan International Science and Technology Collaboration Base of Precision Medicine for Cancer, Changsha 410008, China.,Center for Molecular Imaging of Central South University, Xiangya Hospital, Changsha 410008, China
| | - Zhou Chengzhi
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China
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9
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Fang W, Wu CH, Sun QL, Gu ZT, Zhu L, Mao T, Zhang XF, Xu N, Lu TP, Tsai MH, Chen LH, Lai LC, Chuang EY. Novel Tumor-Specific Antigens for Immunotherapy Identified From Multi-omics Profiling in Thymic Carcinomas. Front Immunol 2021; 12:748820. [PMID: 34867976 PMCID: PMC8635231 DOI: 10.3389/fimmu.2021.748820] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Accepted: 10/28/2021] [Indexed: 12/30/2022] Open
Abstract
Thymic carcinoma (TC) is the most aggressive thymic epithelial neoplasm. TC patients with microsatellite instability, whole-genome doubling, or alternative tumor-specific antigens from gene fusion are most likely to benefit from immunotherapies. However, due to the rarity of this disease, how to prioritize the putative biomarkers and what constitutes an optimal treatment regimen remains largely unknown. Therefore, we integrated genomic and transcriptomic analyses from TC patients and revealed that frameshift indels in KMT2C and CYLD frequently produce neoantigens. Moreover, a median of 3 fusion-derived neoantigens was predicted across affected patients, especially the CATSPERB-TC2N neoantigens that were recurrently predicted in TC patients. Lastly, potentially actionable alterations with early levels of evidence were uncovered and could be used for designing clinical trials. In summary, this study shed light on our understanding of tumorigenesis and presented new avenues for molecular characterization and immunotherapy in TC.
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Affiliation(s)
- Wentao Fang
- Department of Thoracic Surgery, Shanghai Chest Hospital, Shanghai JiaoTong University, Shanghai, China
| | - Chia-Hsin Wu
- Graduate Institute of Biomedical Electronics and Bioinformatics, National Taiwan University, Taipei, Taiwan
| | - Qiang-Ling Sun
- Department of Thoracic Surgery, Shanghai Chest Hospital, Shanghai JiaoTong University, Shanghai, China.,Thoracic Cancer institute, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Zhi-Tao Gu
- Department of Thoracic Surgery, Shanghai Chest Hospital, Shanghai JiaoTong University, Shanghai, China
| | - Lei Zhu
- Department of Pathology, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Teng Mao
- Department of Thoracic Surgery, Shanghai Chest Hospital, Shanghai JiaoTong University, Shanghai, China
| | - Xue-Fei Zhang
- Department of Thoracic Surgery, Shanghai Chest Hospital, Shanghai JiaoTong University, Shanghai, China
| | - Ning Xu
- Department of Thoracic Surgery, Shanghai Chest Hospital, Shanghai JiaoTong University, Shanghai, China
| | - Tzu-Pin Lu
- Bioinformatics and Biostatistics Core, Centers of Genomic and Precision Medicine, National Taiwan University, Taipei, Taiwan.,Department of Public Health, National Taiwan University, Taipei, Taiwan
| | - Mong-Hsun Tsai
- Bioinformatics and Biostatistics Core, Centers of Genomic and Precision Medicine, National Taiwan University, Taipei, Taiwan.,Institute of Biotechnology, National Taiwan University, Taipei, Taiwan
| | - Li-Han Chen
- Institute of Fisheries Science, National Taiwan University, Taipei, Taiwan
| | - Liang-Chuan Lai
- Bioinformatics and Biostatistics Core, Centers of Genomic and Precision Medicine, National Taiwan University, Taipei, Taiwan.,Graduate Institute of Physiology, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Eric Y Chuang
- Graduate Institute of Biomedical Electronics and Bioinformatics, National Taiwan University, Taipei, Taiwan.,Bioinformatics and Biostatistics Core, Centers of Genomic and Precision Medicine, National Taiwan University, Taipei, Taiwan.,Department of Electrical Engineering, National Taiwan University, Taipei, Taiwan.,Master Program for Biomedical Engineering, China Medical University, Taichung, Taiwan
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10
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Ma N, Wang YK, Xu S, Ni QZ, Zheng QW, Zhu B, Cao HJ, Jiang H, Zhang FK, Yuan YM, Zhang EB, Chen TW, Xia J, Ding XF, Chen ZH, Zhang XP, Wang K, Cheng SQ, Qiu L, Li ZG, Yu YC, Wang XF, Zhou B, Li JJ, Xie D. PPDPF alleviates hepatic steatosis through inhibition of mTOR signaling. Nat Commun 2021; 12:3059. [PMID: 34031390 PMCID: PMC8144412 DOI: 10.1038/s41467-021-23285-8] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Accepted: 04/20/2021] [Indexed: 12/11/2022] Open
Abstract
Non-alcoholic fatty liver disease (NAFLD) has become the most prevalent chronic liver disease in the world, however, no drug treatment has been approved for this disease. Thus, it is urgent to find effective therapeutic targets for clinical intervention. In this study, we find that liver-specific knockout of PPDPF (PPDPF-LKO) leads to spontaneous fatty liver formation in a mouse model at 32 weeks of age on chow diets, which is enhanced by HFD. Mechanistic study reveals that PPDPF negatively regulates mTORC1-S6K-SREBP1 signaling. PPDPF interferes with the interaction between Raptor and CUL4B-DDB1, an E3 ligase complex, which prevents ubiquitination and activation of Raptor. Accordingly, liver-specific PPDPF overexpression effectively inhibits HFD-induced mTOR signaling activation and hepatic steatosis in mice. These results suggest that PPDPF is a regulator of mTORC1 signaling in lipid metabolism, and may be a potential therapeutic candidate for NAFLD. Non-alcoholic fatty liver disease (NAFLD) has become a prevalent chronic liver disease, however, drugs to treat this disease are still lacking. Here, the authors show that PPDPF inhibits the development of hepatic steatosis by negatively regulating mTORC1-S6K-SREBP1 signaling, which provides a potential therapeutic candidate for NAFLD treatment.
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Affiliation(s)
- Ning Ma
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Yi-Kang Wang
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Sheng Xu
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Qian-Zhi Ni
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Qian-Wen Zheng
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China.,School of Life Science and Technology, ShanghaiTech University, 393 Middle Huaxia Road, Shanghai, China
| | - Bing Zhu
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Hui-Jun Cao
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Hao Jiang
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Feng-Kun Zhang
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Yan-Mei Yuan
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Er-Bin Zhang
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Tian-Wei Chen
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Ji Xia
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Xu-Fen Ding
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Zhen-Hua Chen
- Department of Hepatic Surgery VI, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Shanghai, China
| | - Xiu-Ping Zhang
- Department of Hepatobiliary and Pancreatic Surgical Oncology, The First Medical Center of Chinese People's Liberation Army (PLA) General Hospital, Beijing, China
| | - Kang Wang
- Department of Hepatic Surgery VI, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Shanghai, China
| | - Shu-Qun Cheng
- Department of Hepatic Surgery VI, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Shanghai, China
| | - Lin Qiu
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Zhi-Gang Li
- Department of Thoracic Surgery, Section of Esophageal Surgery, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Yong-Chun Yu
- Shanghai Institute of Thoracic Oncology, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Xiao-Fan Wang
- Department of Pharmacology and Cancer Biology, Duke University Medical Center, Durham, NC, USA
| | - Bin Zhou
- The State Key Laboratory of Cell Biology, CAS Center for Excellence on Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, China
| | - Jing-Jing Li
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China.
| | - Dong Xie
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China. .,School of Life Science and Technology, ShanghaiTech University, 393 Middle Huaxia Road, Shanghai, China. .,NHC Key Laboratory of Food Safety Risk Assessment, China National Center for Food Safety Risk Assessment, Beijing, China.
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11
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Xiao Y, Lai Y, Yu Y, Jiang P, Li Y, Wang C, Zhang R. The Exocrine Differentiation and Proliferation Factor (EXDPF) Gene Promotes Ovarian Cancer Tumorigenesis by Up-Regulating DNA Replication Pathway. Front Oncol 2021; 11:669603. [PMID: 34041032 PMCID: PMC8141798 DOI: 10.3389/fonc.2021.669603] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Accepted: 04/08/2021] [Indexed: 12/18/2022] Open
Abstract
The Exocrine Differentiation and Proliferation Factor (EXDPF) gene could promote exocrine while inhibit endocrine functions. Although it is well known that ovary is an endocrine organ, the functions of EXDPF in ovarian cancer development is still unknown. This study demonstrated that EXDPF gene is significantly higher expressed in ovarian tumors compared to normal ovarian tissue controls. EXDPF DNA amplification was exhibited in lots of human tumors including 7.19% of ovarian tumors. Also, high expression of EXDPF positively correlated with poor overall survival (OS) of ovarian cancer patients. EXDPF expression could be universally detected in most epithelial ovarian cancer cells (SKOV3, IGROV1, MACS, HO8910PM, ES2, COV362 and A2780) tested in this study. Knock-down of EXDPF by siRNA delivered by plasmid or lentivirus largely inhibited ovarian cancer cells, IGROV1 and SKOV3 proliferation, migration and tumorigenesis in vitro and/or in vivo. Knock-down of EXDPF sensitized SKOV3 cells to the treatment of the front-line drug, paclitaxel. Mechanism study showed that EXDPF enhanced DNA replication pathway to promote ovarian cancer tumorigenesis. In conclusion, this study demonstrated that EXDPF could be a potential therapeutic target as a pro-oncogene of ovarian cancer.
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Affiliation(s)
- Yangjiong Xiao
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China.,Department of Obstetrics and Gynecology, Shanghai Fengxian District Central Hospital, Southern Medical University, Shanghai, China.,Department of Microbiology, Institute of immunology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States.,Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences, School of Life Sciences, East China Normal University, Shanghai, China
| | - Yunxin Lai
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Yang Yu
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences, School of Life Sciences, East China Normal University, Shanghai, China
| | - Pengcheng Jiang
- Department of Gynecology, Changzhou Second People's Hospital Affiliated to Nanjing Medical University, Changzhou, China
| | - Yuhong Li
- Department of Gynecology, The International Peace Maternity & Child Health Hospital, The China Welfare Institute, Shanghai Jiaotong University, Shanghai, China
| | - Chao Wang
- Department of Gynecology, The International Peace Maternity & Child Health Hospital, The China Welfare Institute, Shanghai Jiaotong University, Shanghai, China
| | - Rong Zhang
- Department of Obstetrics and Gynecology, Shanghai Fengxian District Central Hospital, Southern Medical University, Shanghai, China
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12
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Liu G, Shi H, Deng L, Zheng H, Kong W, Wen X, Bi H. Circular RNA circ-FOXM1 facilitates cell progression as ceRNA to target PPDPF and MACC1 by sponging miR-1304-5p in non-small cell lung cancer. Biochem Biophys Res Commun 2019; 513:207-212. [DOI: 10.1016/j.bbrc.2019.03.213] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2019] [Accepted: 03/31/2019] [Indexed: 12/26/2022]
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13
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Mao Z, Li X, Ma X, Wang X, Zhang J, Fan X. Pancreatic progenitor cell differentiation and proliferation factor predicts poor prognosis in heptaocellular carcinoma. Medicine (Baltimore) 2019; 98:e14552. [PMID: 30817571 PMCID: PMC6831259 DOI: 10.1097/md.0000000000014552] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
The aim of this study is to investigate the expression of pancreatic progenitor cell differentiation and proliferation factor (PPDPF) and its relationship with clinicopathological factors in hepatocellular carcinoma (HCC).A total of 135 patients diagnosed with HCC who underwent curative surgery were enrolled in this study. The expression of PPDPF was examined by real time-polymerase chain reaction (RT-PCR), western blot, and immunohistochemistry. The prognostic value for each sample was explored.Both RT-PCR and western blot revealed PPDPF expression was upregulated in HCC. Higher PPDPF expression was also observed in HCC (54.07%) detected by immunohistochemistry (IHC), which was significantly associated with tumors size (P = .003), Edmondson-Steiner Grading (P = .021), recurrence (P = .010), and Diolame complete (P = .023). Patients with higher PPDPF expression had increased cancer progression and poorer prognosis than those with lower expression (P = .043). Multivariate analysis indicated PPDPF as an independent prognostic factor (P = .014).Aberrance PPDPF expression might be a useful predictor and could serve as a potential therapeutic target for HCC.
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Affiliation(s)
- Zhengfa Mao
- Department of General Surgery, Affiliated Hospital of Jiangsu University
| | - Xi Li
- College of Medical School, Jiangsu University
| | - Xiaoyan Ma
- Department of Gynecology and Obstetrics, Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, China
| | - Xuqing Wang
- Department of General Surgery, Affiliated Hospital of Jiangsu University
| | - Jiangxin Zhang
- Department of General Surgery, Affiliated Hospital of Jiangsu University
| | - Xin Fan
- Department of General Surgery, Affiliated Hospital of Jiangsu University
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14
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Jin K, Xiang M. Transcription factor Ptf1a in development, diseases and reprogramming. Cell Mol Life Sci 2019; 76:921-940. [PMID: 30470852 PMCID: PMC11105224 DOI: 10.1007/s00018-018-2972-z] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2018] [Revised: 11/13/2018] [Accepted: 11/19/2018] [Indexed: 12/12/2022]
Abstract
The transcription factor Ptf1a is a crucial helix-loop-helix (bHLH) protein selectively expressed in the pancreas, retina, spinal cord, brain, and enteric nervous system. Ptf1a is preferably assembled into a transcription trimeric complex PTF1 with an E protein and Rbpj (or Rbpjl). In pancreatic development, Ptf1a is indispensable in controlling the expansion of multipotent progenitor cells as well as the specification and maintenance of the acinar cells. In neural tissues, Ptf1a is transiently expressed in the post-mitotic cells and specifies the inhibitory neuronal cell fates, mostly mediated by downstream genes such as Tfap2a/b and Prdm13. Mutations in the coding and non-coding regulatory sequences resulting in Ptf1a gain- or loss-of-function are associated with genetic diseases such as pancreatic and cerebellar agenesis in the rodent and human. Surprisingly, Ptf1a alone is sufficient to reprogram mouse or human fibroblasts into tripotential neural stem cells. Its pleiotropic functions in many biological processes remain to be deciphered in the future.
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Affiliation(s)
- Kangxin Jin
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, 510060, China.
| | - Mengqing Xiang
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, 510060, China.
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15
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Tarifeño-Saldivia E, Lavergne A, Bernard A, Padamata K, Bergemann D, Voz ML, Manfroid I, Peers B. Transcriptome analysis of pancreatic cells across distant species highlights novel important regulator genes. BMC Biol 2017; 15:21. [PMID: 28327131 PMCID: PMC5360028 DOI: 10.1186/s12915-017-0362-x] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2016] [Accepted: 03/01/2017] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Defining the transcriptome and the genetic pathways of pancreatic cells is of great interest for elucidating the molecular attributes of pancreas disorders such as diabetes and cancer. As the function of the different pancreatic cell types has been maintained during vertebrate evolution, the comparison of their transcriptomes across distant vertebrate species is a means to pinpoint genes under strong evolutionary constraints due to their crucial function, which have therefore preserved their selective expression in these pancreatic cell types. RESULTS In this study, RNA-sequencing was performed on pancreatic alpha, beta, and delta endocrine cells as well as the acinar and ductal exocrine cells isolated from adult zebrafish transgenic lines. Comparison of these transcriptomes identified many novel markers, including transcription factors and signaling pathway components, specific for each cell type. By performing interspecies comparisons, we identified hundreds of genes with conserved enriched expression in endocrine and exocrine cells among human, mouse, and zebrafish. This list includes many genes known as crucial for pancreatic cell formation or function, but also pinpoints many factors whose pancreatic function is still unknown. A large set of endocrine-enriched genes can already be detected at early developmental stages as revealed by the transcriptomic profiling of embryonic endocrine cells, indicating a potential role in cell differentiation. The actual involvement of conserved endocrine genes in pancreatic cell differentiation was demonstrated in zebrafish for myt1b, whose invalidation leads to a reduction of alpha cells, and for cdx4, selectively expressed in endocrine delta cells and crucial for their specification. Intriguingly, comparison of the endocrine alpha and beta cell subtypes from human, mouse, and zebrafish reveals a much lower conservation of the transcriptomic signatures for these two endocrine cell subtypes compared to the signatures of pan-endocrine and exocrine cells. These data suggest that the identity of the alpha and beta cells relies on a few key factors, corroborating numerous examples of inter-conversion between these two endocrine cell subtypes. CONCLUSION This study highlights both evolutionary conserved and species-specific features that will help to unveil universal and fundamental regulatory pathways as well as pathways specific to human and laboratory animal models such as mouse and zebrafish.
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Affiliation(s)
- Estefania Tarifeño-Saldivia
- Laboratory of Zebrafish Development and Disease Models (ZDDM), GIGA, University of Liège, Avenue de l'Hôpital 1, B34, 4000 Sart Tilman, Liege, Belgium
| | - Arnaud Lavergne
- Laboratory of Zebrafish Development and Disease Models (ZDDM), GIGA, University of Liège, Avenue de l'Hôpital 1, B34, 4000 Sart Tilman, Liege, Belgium
| | - Alice Bernard
- Laboratory of Zebrafish Development and Disease Models (ZDDM), GIGA, University of Liège, Avenue de l'Hôpital 1, B34, 4000 Sart Tilman, Liege, Belgium
| | - Keerthana Padamata
- Laboratory of Zebrafish Development and Disease Models (ZDDM), GIGA, University of Liège, Avenue de l'Hôpital 1, B34, 4000 Sart Tilman, Liege, Belgium
| | - David Bergemann
- Laboratory of Zebrafish Development and Disease Models (ZDDM), GIGA, University of Liège, Avenue de l'Hôpital 1, B34, 4000 Sart Tilman, Liege, Belgium
| | - Marianne L Voz
- Laboratory of Zebrafish Development and Disease Models (ZDDM), GIGA, University of Liège, Avenue de l'Hôpital 1, B34, 4000 Sart Tilman, Liege, Belgium
| | - Isabelle Manfroid
- Laboratory of Zebrafish Development and Disease Models (ZDDM), GIGA, University of Liège, Avenue de l'Hôpital 1, B34, 4000 Sart Tilman, Liege, Belgium
| | - Bernard Peers
- Laboratory of Zebrafish Development and Disease Models (ZDDM), GIGA, University of Liège, Avenue de l'Hôpital 1, B34, 4000 Sart Tilman, Liege, Belgium.
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16
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Kong BW, Hudson N, Seo D, Lee S, Khatri B, Lassiter K, Cook D, Piekarski A, Dridi S, Anthony N, Bottje W. RNA sequencing for global gene expression associated with muscle growth in a single male modern broiler line compared to a foundational Barred Plymouth Rock chicken line. BMC Genomics 2017; 18:82. [PMID: 28086790 PMCID: PMC5237145 DOI: 10.1186/s12864-016-3471-y] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2016] [Accepted: 12/23/2016] [Indexed: 01/08/2023] Open
Abstract
Background Modern broiler chickens exhibit very rapid growth and high feed efficiency compared to unselected chicken breeds. The improved production efficiency in modern broiler chickens was achieved by the intensive genetic selection for meat production. This study was designed to investigate the genetic alterations accumulated in modern broiler breeder lines during selective breeding conducted over several decades. Methods To identify genes important in determining muscle growth and feed efficiency in broilers, RNA sequencing (RNAseq) was conducted with breast muscle in modern pedigree male (PeM) broilers (n = 6 per group), and with an unselected foundation broiler line (Barred Plymouth Rock; BPR). The RNAseq analysis was carried out using Ilumina Hiseq (2 x 100 bp paired end read) and raw reads were assembled with the galgal4 reference chicken genome. With normalized RPM values, genes showing >10 average read counts were chosen and genes showing <0.05 p-value and >1.3 fold change were considered as differentially expressed (DE) between PeM and BPR. DE genes were subjected to Ingenuity Pathway Analysis (IPA) for bioinformatic functional interpretation. Results The results indicate that 2,464 DE genes were identified in the comparison between PeM and BPR. Interestingly, the expression of genes encoding mitochondrial proteins in chicken are significantly biased towards the BPR group, suggesting a lowered mitochondrial content in PeM chicken muscles compared to BPR chicken. This result is inconsistent with more slow muscle fibers bearing a lower mitochondrial content in the PeM. The molecular, cellular and physiological functions of DE genes in the comparison between PeM and BPR include organismal injury, carbohydrate metabolism, cell growth/proliferation, and skeletal muscle system development, indicating that cellular mechanisms in modern broiler lines are tightly associated with rapid growth and differential muscle fiber contents compared to the unselected BPR line. Particularly, PDGF (platelet derived growth factor) signaling and NFE2L2 (nuclear factor, erythroid 2-like 2; also known as NRF2) mediated oxidative stress response pathways appear to be activated in modern broiler compared to the foundational BPR line. Upstream and network analyses revealed that the MSTN (myostatin) –FST (follistatin) interactions and inhibition of AR (androgen receptor) were predicted to be effective regulatory factors for DE genes in modern broiler line. PRKAG3 (protein kinase, AMP-activated, gamma 3 non-catalytic subunit) and LIPE (lipase E) are predicted as core regulatory factors for myogenic development, nutrient and lipid metabolism. Conclusion The highly upregulated genes in PeM may represent phenotypes of subclinical myopathy commonly observed in the commercial broiler breast tissue, that can lead to muscle hardening, named as woody breast. By investigating global gene expression in a highly selected pedigree broiler line and a foundational breed (Barred Plymouth Rock), the results provide insight into cellular mechanisms that regulate muscle growth, fiber composition and feed efficiency. Electronic supplementary material The online version of this article (doi:10.1186/s12864-016-3471-y) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Byung-Whi Kong
- Department of Poultry Science, Center of Excellence for Poultry Science, University of Arkansas, Fayetteville, Arkansas, USA
| | - Nicholas Hudson
- School of Agriculture and Food Science, University of Queensland, Gatton, Australia
| | - Dongwon Seo
- Department of Poultry Science, Center of Excellence for Poultry Science, University of Arkansas, Fayetteville, Arkansas, USA
| | - Seok Lee
- Department of Poultry Science, Center of Excellence for Poultry Science, University of Arkansas, Fayetteville, Arkansas, USA
| | - Bhuwan Khatri
- Department of Poultry Science, Center of Excellence for Poultry Science, University of Arkansas, Fayetteville, Arkansas, USA
| | - Kentu Lassiter
- Department of Poultry Science, Center of Excellence for Poultry Science, University of Arkansas, Fayetteville, Arkansas, USA
| | - Devin Cook
- Department of Poultry Science, Center of Excellence for Poultry Science, University of Arkansas, Fayetteville, Arkansas, USA
| | - Alissa Piekarski
- Department of Poultry Science, Center of Excellence for Poultry Science, University of Arkansas, Fayetteville, Arkansas, USA
| | - Sami Dridi
- Department of Poultry Science, Center of Excellence for Poultry Science, University of Arkansas, Fayetteville, Arkansas, USA
| | - Nicholas Anthony
- Department of Poultry Science, Center of Excellence for Poultry Science, University of Arkansas, Fayetteville, Arkansas, USA
| | - Walter Bottje
- Department of Poultry Science, Center of Excellence for Poultry Science, University of Arkansas, Fayetteville, Arkansas, USA.
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17
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Segerstolpe Å, Palasantza A, Eliasson P, Andersson EM, Andréasson AC, Sun X, Picelli S, Sabirsh A, Clausen M, Bjursell MK, Smith DM, Kasper M, Ämmälä C, Sandberg R. Single-Cell Transcriptome Profiling of Human Pancreatic Islets in Health and Type 2 Diabetes. Cell Metab 2016; 24:593-607. [PMID: 27667667 PMCID: PMC5069352 DOI: 10.1016/j.cmet.2016.08.020] [Citation(s) in RCA: 949] [Impact Index Per Article: 118.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/06/2016] [Revised: 06/13/2016] [Accepted: 08/26/2016] [Indexed: 12/25/2022]
Abstract
Hormone-secreting cells within pancreatic islets of Langerhans play important roles in metabolic homeostasis and disease. However, their transcriptional characterization is still incomplete. Here, we sequenced the transcriptomes of thousands of human islet cells from healthy and type 2 diabetic donors. We could define specific genetic programs for each individual endocrine and exocrine cell type, even for rare δ, γ, ε, and stellate cells, and revealed subpopulations of α, β, and acinar cells. Intriguingly, δ cells expressed several important receptors, indicating an unrecognized importance of these cells in integrating paracrine and systemic metabolic signals. Genes previously associated with obesity or diabetes were found to correlate with BMI. Finally, comparing healthy and T2D transcriptomes in a cell-type resolved manner uncovered candidates for future functional studies. Altogether, our analyses demonstrate the utility of the generated single-cell gene expression resource.
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Affiliation(s)
- Åsa Segerstolpe
- Department of Cell and Molecular Biology (CMB), Karolinska Institutet, 171 77 Stockholm, Sweden; Integrated Cardio Metabolic Center (ICMC), Karolinska Institutet, 141 57 Huddinge, Sweden
| | - Athanasia Palasantza
- Department of Cell and Molecular Biology (CMB), Karolinska Institutet, 171 77 Stockholm, Sweden
| | - Pernilla Eliasson
- Cardiovascular and Metabolic Diseases (CVMD), Innovative Medicines and Early Development Biotech Unit (iMed), AstraZeneca, 431 83 Mölndal, Sweden
| | - Eva-Marie Andersson
- Cardiovascular and Metabolic Diseases (CVMD), Innovative Medicines and Early Development Biotech Unit (iMed), AstraZeneca, 431 83 Mölndal, Sweden
| | - Anne-Christine Andréasson
- Cardiovascular and Metabolic Diseases (CVMD), Innovative Medicines and Early Development Biotech Unit (iMed), AstraZeneca, 431 83 Mölndal, Sweden
| | - Xiaoyan Sun
- Department of Biosciences and Nutrition and Center for Innovative Medicine, Novum, Karolinska Institutet, 141 83 Huddinge, Sweden
| | - Simone Picelli
- Ludwig Institute for Cancer Research, 171 77 Stockholm, Sweden
| | - Alan Sabirsh
- Cardiovascular and Metabolic Diseases (CVMD), Innovative Medicines and Early Development Biotech Unit (iMed), AstraZeneca, 431 83 Mölndal, Sweden
| | - Maryam Clausen
- Discovery Sciences, Innovative Medicines and Early Development Biotech Unit (iMed), AstraZeneca, 431 83 Mölndal, Sweden
| | | | - David M Smith
- Discovery Sciences, Innovative Medicines and Early Development Biotech Unit (iMed), AstraZeneca, Cambridge Science Park, Milton Road, Cambridge CB4 0WG, UK
| | - Maria Kasper
- Department of Biosciences and Nutrition and Center for Innovative Medicine, Novum, Karolinska Institutet, 141 83 Huddinge, Sweden
| | - Carina Ämmälä
- Cardiovascular and Metabolic Diseases (CVMD), Innovative Medicines and Early Development Biotech Unit (iMed), AstraZeneca, 431 83 Mölndal, Sweden
| | - Rickard Sandberg
- Department of Cell and Molecular Biology (CMB), Karolinska Institutet, 171 77 Stockholm, Sweden; Integrated Cardio Metabolic Center (ICMC), Karolinska Institutet, 141 57 Huddinge, Sweden; Ludwig Institute for Cancer Research, 171 77 Stockholm, Sweden.
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18
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Abstract
Lineage tracing studies have revealed that transcription factors play a cardinal role in pancreatic development, differentiation and function. Three transitions define pancreatic organogenesis, differentiation and maturation. In the primary transition, when pancreatic organogenesis is initiated, there is active proliferation of pancreatic progenitor cells. During the secondary transition, defined by differentiation, there is growth, branching, differentiation and pancreatic cell lineage allocation. The tertiary transition is characterized by differentiated pancreatic cells that undergo further remodeling, including apoptosis, replication and neogenesis thereby establishing a mature organ. Transcription factors function at multiple levels and may regulate one another and auto-regulate. The interaction between extrinsic signals from non-pancreatic tissues and intrinsic transcription factors form a complex gene regulatory network ultimately culminating in the different cell lineages and tissue types in the developing pancreas. Mutations in these transcription factors clinically manifest as subtypes of diabetes mellitus. Current treatment for diabetes is not curative and thus, developmental biologists and stem cell researchers are utilizing knowledge of normal pancreatic development to explore novel therapeutic alternatives. This review summarizes current knowledge of transcription factors involved in pancreatic development and β-cell differentiation in rodents.
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Affiliation(s)
- Reshmi Dassaye
- a Discipline of Pharmaceutical Sciences; Nelson R. Mandela School of Medicine, University of KwaZulu-Natal , Durban , South Africa
| | - Strini Naidoo
- a Discipline of Pharmaceutical Sciences; Nelson R. Mandela School of Medicine, University of KwaZulu-Natal , Durban , South Africa
| | - Marlon E Cerf
- b Diabetes Discovery Platform, South African Medical Research Council , Cape Town , South Africa
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19
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Ma WR, Zhang J. Jag1b is essential for patterning inner ear sensory cristae by regulating anterior morphogenetic tissue separation and preventing posterior cell death. Development 2015; 142:763-73. [DOI: 10.1242/dev.113662] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
The sensory patches of the vertebrate inner ear, which contain hair cells and supporting cells, are essential for hearing and balance functions. How the stereotypically organized sensory patches are formed remains to be determined. In this study, we isolated a zebrafish mutant in which the jag1b gene is disrupted by an EGFP insertion. Loss of Jag1b causes cell death in the developing posterior crista and results in downregulation of fgf10a in the posterior prosensory cells. Inhibition of FGFR activity in wild-type embryos also causes loss of the posterior crista, suggesting that Fgf10a mediates Jag1b activity. By contrast, in the anterior prosensory domain, Jag1b regulates separation of a single morphogenetic field into anterior and lateral cristae by flattening cells destined to form a nonsensory epithelium between the two cristae. MAPK activation in the nonsensory epithelium precursors is required for the separation. In the jag1b mutant, MAPK activation and cell flattening are extended to anterior crista primordia, causing loss of anterior crista. More importantly, inhibition of MAPK activity, which blocks the differentiation of nonsensory epithelial cells, generated a fused large crista and extra hair cells. Thus, Jag1b uses two distinct mechanisms to form three sensory cristae in zebrafish.
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Affiliation(s)
- Wei-Rui Ma
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jian Zhang
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China
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Tsuji N, Ninov N, Delawary M, Osman S, Roh AS, Gut P, Stainier DYR. Whole organism high content screening identifies stimulators of pancreatic beta-cell proliferation. PLoS One 2014; 9:e104112. [PMID: 25117518 PMCID: PMC4130527 DOI: 10.1371/journal.pone.0104112] [Citation(s) in RCA: 69] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2014] [Accepted: 07/04/2014] [Indexed: 12/21/2022] Open
Abstract
Inducing beta-cell mass expansion in diabetic patients with the aim to restore glucose homeostasis is a promising therapeutic strategy. Although several in vitro studies have been carried out to identify modulators of beta-cell mass expansion, restoring endogenous beta-cell mass in vivo has yet to be achieved. To identify potential stimulators of beta-cell replication in vivo, we established transgenic zebrafish lines that monitor and allow the quantification of cell proliferation by using the fluorescent ubiquitylation-based cell cycle indicator (FUCCI) technology. Using these new reagents, we performed an unbiased chemical screen, and identified 20 small molecules that markedly increased beta-cell proliferation in vivo. Importantly, these structurally distinct molecules, which include clinically-approved drugs, modulate three specific signaling pathways: serotonin, retinoic acid and glucocorticoids, showing the high sensitivity and robustness of our screen. Notably, two drug classes, retinoic acid and glucocorticoids, also promoted beta-cell regeneration after beta-cell ablation. Thus, this study establishes a proof of principle for a high-throughput small molecule-screen for beta-cell proliferation in vivo, and identified compounds that stimulate beta-cell proliferation and regeneration.
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Affiliation(s)
- Naoki Tsuji
- Department of Biochemistry and Biophysics, Programs in Developmental and Stem Cell Biology, Genetics and Human Genetics, the Diabetes Center, Institute for Regeneration Medicine and Liver Center, University of California San Francisco, San Francisco, California, United States of America
| | - Nikolay Ninov
- Department of Biochemistry and Biophysics, Programs in Developmental and Stem Cell Biology, Genetics and Human Genetics, the Diabetes Center, Institute for Regeneration Medicine and Liver Center, University of California San Francisco, San Francisco, California, United States of America
- Department of Developmental Genetics, Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany
- DFG Research Center for Regenerative Therapies Dresden, Technische Universität Dresden, Dresden, Germany
- Paul Langerhans Institute Dresden, German Center for Diabetes Research, Dresden, Germany
| | - Mina Delawary
- Department of Biochemistry and Biophysics, Programs in Developmental and Stem Cell Biology, Genetics and Human Genetics, the Diabetes Center, Institute for Regeneration Medicine and Liver Center, University of California San Francisco, San Francisco, California, United States of America
| | - Sahar Osman
- Department of Biochemistry and Biophysics, Programs in Developmental and Stem Cell Biology, Genetics and Human Genetics, the Diabetes Center, Institute for Regeneration Medicine and Liver Center, University of California San Francisco, San Francisco, California, United States of America
| | - Alex S. Roh
- Department of Biochemistry and Biophysics, Programs in Developmental and Stem Cell Biology, Genetics and Human Genetics, the Diabetes Center, Institute for Regeneration Medicine and Liver Center, University of California San Francisco, San Francisco, California, United States of America
| | - Philipp Gut
- Department of Biochemistry and Biophysics, Programs in Developmental and Stem Cell Biology, Genetics and Human Genetics, the Diabetes Center, Institute for Regeneration Medicine and Liver Center, University of California San Francisco, San Francisco, California, United States of America
| | - Didier Y. R. Stainier
- Department of Biochemistry and Biophysics, Programs in Developmental and Stem Cell Biology, Genetics and Human Genetics, the Diabetes Center, Institute for Regeneration Medicine and Liver Center, University of California San Francisco, San Francisco, California, United States of America
- Department of Developmental Genetics, Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany
- * E-mail:
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Zhang S, Xu M, Huang J, Tang L, Zhang Y, Wu J, Lin S, Wang H. Heme acts through the Bach1b/Nrf2a-MafK pathway to regulate exocrine peptidase precursor genes in porphyric zebrafish. Dis Model Mech 2014; 7:837-45. [PMID: 24652768 PMCID: PMC4073273 DOI: 10.1242/dmm.014951] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Using a zebrafish model of hepatoerythropoietic porphyria (HEP), we identify a previously unknown mechanism underlying heme-mediated regulation of exocrine zymogens. Zebrafish bach1b, nrf2a and mafK are all expressed in the zebrafish exocrine pancreas. Overexpression of bach1b or knockdown of nrf2a result in the downregulation of the expression of the exocrine zymogens, whereas overexpression of nrf2a or knockdown of bach1b cause their upregulation. In vitro luciferase assays demonstrate that heme activates the zymogens in a dosage-dependent manner and that the zymogen promoter activities require the integral Maf recognition element (MARE) motif. The Bach1b-MafK heterodimer represses the zymogen promoters, whereas the Nrf2a-MafK heterodimer activates them. Furthermore, chromatin immunoprecipitation (ChIP) assays show that MafK binds to the MARE sites in the 5' regulatory regions of the zymogens. Taken together, these data indicate that heme stimulates the exchange of Bach1b for Nrf2a at MafK-occupied MARE sites and that, particularly in heme-deficient porphyria, the repressive Bach1b-MafK heterodimer dominates, which can be exchanged for the activating Nrf2a-MafK heterodimer upon treatment with hemin. These results provide novel insights into the regulation of exocrine function, as well as the pathogenesis of porphyria, and should be useful for designing new therapies for both types of disease.
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Affiliation(s)
- Shuqing Zhang
- Center for Circadian Clocks, Soochow University, Suzhou 215123, Jiangsu, China. School of Biology & Basic Medical Sciences, Medical College, Soochow University, Suzhou 215123, Jiangsu, China
| | - Minrui Xu
- Center for Circadian Clocks, Soochow University, Suzhou 215123, Jiangsu, China. School of Biology & Basic Medical Sciences, Medical College, Soochow University, Suzhou 215123, Jiangsu, China
| | - Jian Huang
- Center for Circadian Clocks, Soochow University, Suzhou 215123, Jiangsu, China. School of Biology & Basic Medical Sciences, Medical College, Soochow University, Suzhou 215123, Jiangsu, China
| | - Lili Tang
- Center for Circadian Clocks, Soochow University, Suzhou 215123, Jiangsu, China. School of Biology & Basic Medical Sciences, Medical College, Soochow University, Suzhou 215123, Jiangsu, China
| | - Yanqing Zhang
- Center for Circadian Clocks, Soochow University, Suzhou 215123, Jiangsu, China. School of Biology & Basic Medical Sciences, Medical College, Soochow University, Suzhou 215123, Jiangsu, China
| | - Jingyao Wu
- Center for Circadian Clocks, Soochow University, Suzhou 215123, Jiangsu, China. School of Biology & Basic Medical Sciences, Medical College, Soochow University, Suzhou 215123, Jiangsu, China
| | - Shuo Lin
- Department of Molecular, Cell and Developmental Biology, University of California, Los Angeles, CA 90095-1606, USA
| | - Han Wang
- Center for Circadian Clocks, Soochow University, Suzhou 215123, Jiangsu, China. School of Biology & Basic Medical Sciences, Medical College, Soochow University, Suzhou 215123, Jiangsu, China.
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Zhang T, Guo X, Chen Y. Retinoic acid-activated Ndrg1a represses Wnt/β-catenin signaling to allow Xenopus pancreas, oesophagus, stomach, and duodenum specification. PLoS One 2013; 8:e65058. [PMID: 23741453 PMCID: PMC3669096 DOI: 10.1371/journal.pone.0065058] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2012] [Accepted: 04/22/2013] [Indexed: 12/14/2022] Open
Abstract
How cells integrate multiple patterning signals to achieve early endoderm regionalization remains largely unknown. Between gastrulation and neurulation, retinoic acid (RA) signaling is required, while Wnt/β-catenin signaling has to be repressed for the specification of the pancreas, oesophagus, stomach, and duodenum primordia in Xenopus embryos. In attempt to screen for RA regulated genes in Xenopus endoderm, we identified a direct RA target gene, N-myc downstream regulated gene 1a (ndrg1a) that showed expression early in the archenteron roof endoderm and late in the developing pancreas, oesophagus, stomach, and duodenum. Both antisense morpholino oligonucleotide mediated knockdown of ndrg1a in Xenopus laevis and the transcription activator-like effector nucleases (TALEN) mediated disruption of ndrg1 in Xenopus tropicalis demonstrate that like RA signaling, Ndrg1a is specifically required for the specification of Xenopus pancreas, oesophagus, stomach, and duodenum primordia. Immunofluorescence data suggest that RA-activated Ndrg1a suppresses Wnt/β-catenin signaling in Xenopus archenteron roof endoderm cells. Blocking Wnt/β-catenin signaling rescued Ndrg1a knockdown phenotype. Furthermore, overexpression of the putative Wnt/β-catenin target gene Atf3 phenocopied knockdown of Ndrg1a or inhibition of RA signaling, while Atf3 knockdown can rescue Ndrg1a knockdown phenotype. Lastly, the pancreas/stomach/duodenum transcription factor Pdx1 was able to rescue Atf3 overexpression or Ndrg1a knockdown phenotype. Together, we conclude that RA activated Ndrg1a represses Wnt/β-catenin signaling to allow the specification of pancreas, oesophagus, stomach, and duodenum progenitor cells in Xenopus embryos.
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Affiliation(s)
- Tiejun Zhang
- Key Laboratory of Regenerative Biology, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China
- Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, Guangzhou, China
- Graduate University of Chinese Academy of Sciences, Beijing, China
| | - Xiaogang Guo
- Key Laboratory of Regenerative Biology, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China
- Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, Guangzhou, China
| | - Yonglong Chen
- Key Laboratory of Regenerative Biology, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China
- Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, Guangzhou, China
- * E-mail:
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Yee NS, Kazi AA, Yee RK. Translating discovery in zebrafish pancreatic development to human pancreatic cancer: biomarkers, targets, pathogenesis, and therapeutics. Zebrafish 2013; 10:132-46. [PMID: 23682805 DOI: 10.1089/zeb.2012.0817] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Abstract Experimental studies in the zebrafish have greatly facilitated understanding of genetic regulation of the early developmental events in the pancreas. Various approaches using forward and reverse genetics, chemical genetics, and transgenesis in zebrafish have demonstrated generally conserved regulatory roles of mammalian genes and discovered novel genetic pathways in exocrine pancreatic development. Accumulating evidence has supported the use of zebrafish as a model of human malignant diseases, including pancreatic cancer. Studies have shown that the genetic regulators of exocrine pancreatic development in zebrafish can be translated into potential clinical biomarkers and therapeutic targets in human pancreatic adenocarcinoma. Transgenic zebrafish expressing oncogenic K-ras and zebrafish tumor xenograft model have emerged as valuable tools for dissecting the pathogenetic mechanisms of pancreatic cancer and for drug discovery and toxicology. Future analysis of the pancreas in zebrafish will continue to advance understanding of the genetic regulation and biological mechanisms during organogenesis. Results of those studies are expected to provide new insights into how aberrant developmental pathways contribute to formation and growth of pancreatic neoplasia, and hopefully generate valid biomarkers and targets as well as effective and safe therapeutics in pancreatic cancer.
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Affiliation(s)
- Nelson S Yee
- Division of Hematology-Oncology, Program of Experimental Therapeutics, Department of Medicine, Penn State Milton S. Hershey Medical Center, Penn State College of Medicine, Penn State Hershey Cancer Institute, Pennsylvania State University , Hershey, PA 17033-0850, USA.
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Koop D, Holland LZ, Setiamarga D, Schubert M, Holland ND. Tail regression induced by elevated retinoic acid signaling in amphioxus larvae occurs by tissue remodeling, not cell death. Evol Dev 2013; 13:427-35. [PMID: 23016904 DOI: 10.1111/j.1525-142x.2011.00501.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The vitamin A derived morphogen retinoic acid (RA) is known to function in the regulation of tissue proliferation and differentiation. Here, we show that exogenous RA applied to late larvae of the invertebrate chordate amphioxus can reverse some differentiated states. Although treatment with the RA antagonist BMS009 has no obvious effect on late larvae of amphioxus, administration of excess RA alters the morphology of the posterior end of the body. The anus closes over, and gut contents accumulate in the hindgut. In addition, the larval tail fin regresses, although little apoptosis takes place. This fin normally consists of columnar epidermal cells, each characterized by a ciliary rootlet running all the way from an apical centriole to the base of the cell and likely contributing substantial cytoskeletal support. After a few days of RA treatment, the rootlet becomes disrupted, and the cell shape changes from columnar to cuboidal. Transmission electron microscopy (TEM) shows fragments of the rootlet in the basal cytoplasm of the cuboidal cell. A major component of the ciliary rootlet in amphioxus is the protein Rootletin, which is encoded by a single AmphiRootletin gene. This gene is highly expressed in the tail epithelial cells of control larvae, but becomes downregulated after about a day of RA treatment, and the breakup of the ciliary rootlet soon follows. The effect of excess RA on these epidermal cells of the larval tail in amphioxus is unlike posterior regression in developing zebrafish, where elevated RA signaling alters connective tissues of mesodermal origin. In contrast, however, the RA-induced closure of the amphioxus anus has parallels in the RA-induced caudal regression syndrome of mammals.
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Affiliation(s)
- Demian Koop
- Marine Biology Research Division, Scripps Institution of Oceanography, University of California at San Diego, La Jolla, CA, 92093, USA.
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Huang P, Xu L, Liang W, Tam CI, Zhang Y, Qi F, Zhu Z, Lin S, Zhang B. Genomic deletion induced by Tol2 transposon excision in zebrafish. Nucleic Acids Res 2012; 41:e36. [PMID: 23143102 PMCID: PMC3553969 DOI: 10.1093/nar/gks1035] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022] Open
Abstract
Genomic deletions induced by imprecise excision of transposons have been used to disrupt gene functions in Drosophila. To determine the excision properties of Tol2, a popular transposon in zebrafish, we took advantage of two transgenic zebrafish lines Et(gata2a:EGFP)pku684 and Et(gata2a:EGFP)pku760, and mobilized the transposon by injecting transposase mRNA into homozygous transgenic embryos. Footprint analysis showed that the Tol2 transposons were excised in either a precise or an imprecise manner. Furthermore, we identified 1093-bp and 1253-bp genomic deletions in Et(gata2a:EGFP)pku684 founder embryos flanking the 5′ end of the original Tol2 insertion site, and a 1340-bp deletion in the Et(gata2a:EGFP)pku760 founder embryos flanking the 3′ end of the insertion site. The mosaic Et(gata2a:EGFP)pku684 embryos were raised to adulthood and screened for germline transmission of Tol2 excision in their F1 progeny. On average, ∼42% of the F1 embryos displayed loss or altered EGFP patterns, demonstrating that this transposon could be efficiently excised from the zebrafish genome in the germline. Furthermore, from 59 founders, we identified one that transmitted the 1093-bp genomic deletion to its offspring. These results suggest that imprecise Tol2 transposon excision can be used as an alternative strategy to achieve gene targeting in zebrafish.
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Affiliation(s)
- Peng Huang
- Key Laboratory of Cell Proliferation and Differentiation of the Ministry of Education, College of Life Sciences, Peking University, Beijing 100871, PR China
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Xu L, Yin W, Xia J, Peng M, Li S, Lin S, Pei D, Shu X. An antiapoptotic role of sorting nexin 7 is required for liver development in zebrafish. Hepatology 2012; 55:1985-93. [PMID: 22213104 DOI: 10.1002/hep.25560] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/11/2011] [Accepted: 12/15/2011] [Indexed: 12/29/2022]
Abstract
UNLABELLED Sorting nexin (SNX) family proteins are best characterized for their abilities to regulate protein trafficking during processes such as endocytosis of membrane receptors, endosomal sorting, and protein degradation, but their in vivo functions remain largely unknown. We started to investigate the biological functions of SNXs using the zebrafish model. In this study, we demonstrated that SNX7 was essential for embryonic liver development. Hepatoblasts were specified normally, and the proliferation of these cells was not affected when SNX7 was knocked down by gene-specific morpholinos; however, they underwent massive apoptosis during the early budding stage. SNX7 mainly regulated the survival of cells in the embryonic liver and did not affect the viability of cells in other endoderm-derived organs. We further demonstrated that down-regulation of SNX7 by short interfering RNAs induced apoptosis in cell culture. At the molecular level, the cellular FLICE-like inhibitory protein (c-FLIP)/caspase 8 pathway was activated when SNX7 was down-regulated. Furthermore, overexpression of c-FLIP(S) was able to rescue the SNX7 knockdown-induced liver defect. CONCLUSION SNX7 is a liver-enriched antiapoptotic protein that is indispensable for the survival of hepatoblasts during zebrafish early embryogenesis.
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Affiliation(s)
- Liangliang Xu
- Laboratory of Stem Cell Biology, Department of Biological Sciences and Biotechnology, Institute of Biomedicine, School of Medicine, Tsinghua University, Beijing, China
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Abstract
The pancreas is characterized by a major component, an exocrine and ductal system involved in digestion, and a minor component, the endocrine islets represented by islet micro-organs that tightly regulate glucose homoeostasis. Pancreatic organogenesis is strictly co-ordinated by transcription factors that are expressed sequentially to yield functional islets capable of maintaining glucose homoeostasis. Angiogenesis and innervation complete islet development, equipping islets to respond to metabolic demands. Proper regulation of this triad of processes during development is critical for establishing functional islets.
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Abstract
Zebrafish is emerging as a unique model organism for studying cancer genetics and biology. For several decades zebrafish have been used to study vertebrate development, where they have made important contributions to understanding the specification and differentiation programs in many tissues. Recently, zebrafish studies have led to important insights into thyroid development, and have been used to model endocrine cancer. Zebrafish possess a unique set of attributes that make them amenable to forward and reverse genetic approaches. Zebrafish embryos develop rapidly and can be used to study specific cell lineages or the effects of chemicals on pathways or tissue development. In this review, we highlight the structure and function of endocrine organs in zebrafish and outline the major achievements in modeling cancer. Our goal is to familiarize readers with the zebrafish as a genetic model system and propose opportunities for endocrine cancer research in zebrafish.
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Affiliation(s)
- Caitlin Bourque
- Departments of Surgery and Medicine, Weill Cornell Medical College and New York Presbyterian Hospital, USA
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Huang S, Ma J, Liu X, Zhang Y, Luo L. Retinoic acid signaling sequentially controls visceral and heart laterality in zebrafish. J Biol Chem 2011; 286:28533-43. [PMID: 21669875 DOI: 10.1074/jbc.m111.244327] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
During zebrafish development, the left-right (LR) asymmetric signals are first established around the Kupffer vesicle (KV), a ciliated organ generating directional fluid flow. Then, LR asymmetry is conveyed and stabilized in the lateral plate mesoderm. Although numerous molecules and signaling pathways are involved in controlling LR asymmetry, mechanistic difference and concordance between different organs during LR patterning are poorly understood. Here we show that RA signaling regulates laterality decisions at two stages in zebrafish. Before the 2-somite stage (2So), inhibition of RA signaling leads to randomized visceral laterality through bilateral expression of nodal/spaw in the lateral plate mesoderm, which is mediated by increases in cilia length and defective directional fluid flow in KV. Fgf8 is required for the regulation of cilia length by RA signaling. Blockage of RA signaling before 2So also leads to mild defects of heart laterality, which become much more severe through perturbation of cardiac bmp4 asymmetry when RA signaling is blocked after 2So. At this stage, visceral laterality and the left-sided Nodal remain unaffected. These findings suggest that RA signaling controls visceral laterality through the left-sided Nodal signal before 2So, and regulates heart laterality through cardiac bmp4 mainly after 2So, first identifying sequential control and concordance of visceral and heart laterality.
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Affiliation(s)
- Sizhou Huang
- Key Laboratory of Freshwater Fish Reproduction and Development, Ministry of Education, School of Life Sciences, Southwest University, Beibei, 400715 Chongqing, China
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Li IC, Chan CT, Lu YF, Wu YT, Chen YC, Li GB, Lin CY, Hwang SPL. Zebrafish krüppel-like factor 4a represses intestinal cell proliferation and promotes differentiation of intestinal cell lineages. PLoS One 2011; 6:e20974. [PMID: 21687630 PMCID: PMC3110806 DOI: 10.1371/journal.pone.0020974] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2010] [Accepted: 05/17/2011] [Indexed: 01/12/2023] Open
Abstract
Background Mouse krüppel-like factor 4 (Klf4) is a zinc finger-containing transcription factor required for terminal differentiation of goblet cells in the colon. However, studies using either Klf4−/− mice or mice with conditionally deleted Klf4 in their gastric epithelia showed different results in the role of Klf4 in epithelial cell proliferation. We used zebrafish as a model organism to gain further understanding of the role of Klf4 in the intestinal cell proliferation and differentiation. Methodology/Principal Findings We characterized the function of klf4a, a mammalian klf4 homologue by antisense morpholino oligomer knockdown. Zebrafish Klf4a shared high amino acid similarities with human and mouse Klf4. Phylogenetic analysis grouped zebrafish Klf4a together with both human and mouse Klf4 in a branch with high bootstrap value. In zebrafish, we demonstrate that Klf4a represses intestinal cell proliferation based on results of BrdU incorporation, p-Histone 3 immunostaining, and transmission electron microscopy analyses. Decreased PepT1 expression was detected in intestinal bulbs of 80- and 102-hours post fertilization (hpf) klf4a morphants. Significant reduction of alcian blue-stained goblet cell number was identified in intestines of 102- and 120-hpf klf4a morphants. Embryos treated with γ-secretase inhibitor showed increased klf4a expression in the intestine, while decreased klf4a expression and reduction in goblet cell number were observed in embryos injected with Notch intracellular domain (NICD) mRNA. We were able to detect recovery of goblet cell number in 102-hpf embryos that had been co-injected with both klf4a and Notch 1a NICD mRNA. Conclusions/Significance This study provides in vivo evidence showing that zebrafih Klf4a is essential for the repression of intestinal cell proliferation. Zebrafish Klf4a is required for the differentiation of goblet cells and the terminal differentiation of enterocytes. Moreover, the regulation of differentiation of goblet cells in zebrafish intestine by Notch signaling at least partially mediated through Klf4a.
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Affiliation(s)
- I-Chen Li
- Institute of Molecular and Cellular Biology, National Tsing Hua University, Hsinchu, Taiwan
| | - Chein-Tso Chan
- Institute of Bioscience and Biotechnology, National Taiwan Ocean University, Keelung, Taiwan
| | - Yu-Fen Lu
- Institute of Cellular and Organismic Biology, Academia Sinica, Taipei, Taiwan
| | - Yi-Ting Wu
- Institute of Cellular and Organismic Biology, Academia Sinica, Taipei, Taiwan
| | - Yi-Chung Chen
- Institute of Cellular and Organismic Biology, Academia Sinica, Taipei, Taiwan
| | - Guo-Bin Li
- Institute of Bioscience and Biotechnology, National Taiwan Ocean University, Keelung, Taiwan
| | - Che-Yi Lin
- Institute of Bioscience and Biotechnology, National Taiwan Ocean University, Keelung, Taiwan
| | - Sheng-Ping L. Hwang
- Institute of Cellular and Organismic Biology, Academia Sinica, Taipei, Taiwan
- Institute of Bioscience and Biotechnology, National Taiwan Ocean University, Keelung, Taiwan
- * E-mail:
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Wang Y, Rovira M, Yusuff S, Parsons MJ. Genetic inducible fate mapping in larval zebrafish reveals origins of adult insulin-producing β-cells. Development 2011; 138:609-17. [PMID: 21208992 DOI: 10.1242/dev.059097] [Citation(s) in RCA: 85] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The Notch-signaling pathway is known to be fundamental in controlling pancreas differentiation. We now report on using Cre-based fate mapping to indelibly label pancreatic Notch-responsive cells (PNCs) at larval stages and follow their fate in the adult pancreas. We show that the PNCs represent a population of progenitors that can differentiate to multiple lineages, including adult ductal cells, centroacinar cells (CACs) and endocrine cells. These endocrine cells include the insulin-producing β-cells. CACs are a functional component of the exocrine pancreas; however, our fate-mapping results indicate that CACs are more closely related to endocrine cells by lineage as they share a common progenitor. The majority of the exocrine pancreas consists of the secretory acinar cells; however, we only detect a very limited contribution of PNCs to acinar cells. To explain this observation we re-examined early events in pancreas formation. The pancreatic anlage that gives rise to the exocrine pancreas is located in the ventral gut endoderm (called the ventral bud). Ptf1a is a gene required for exocrine pancreas development and is first expressed as the ventral bud forms. We used transgenic marker lines to observe both the domain of cells expressing ptf1a and cells responding to Notch signaling. We do not detect any overlap in expression and demonstrate that the ventral bud consists of two cell populations: a ptf1-expressing domain and a Notch-responsive progenitor core. As pancreas organogenesis continues, the ventral bud derived PNCs align along the duct, remain multipotent and later in development differentiate to form secondary islets, ducts and CACs.
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Affiliation(s)
- Yiyun Wang
- Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
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Pierreux CE, Cordi S, Hick AC, Achouri Y, Ruiz de Almodovar C, Prévot PP, Courtoy PJ, Carmeliet P, Lemaigre FP. Epithelial: Endothelial cross-talk regulates exocrine differentiation in developing pancreas. Dev Biol 2010; 347:216-27. [PMID: 20807526 DOI: 10.1016/j.ydbio.2010.08.024] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2010] [Revised: 07/22/2010] [Accepted: 08/23/2010] [Indexed: 11/18/2022]
Abstract
Endothelial cells are required to initiate pancreas development from the endoderm. They also control the function of endocrine islets after birth. Here we investigate in developing pancreas how the endothelial cells become organized during branching morphogenesis and how their development affects pancreatic cell differentiation. We show that endothelial cells closely surround the epithelial bud at the onset of pancreas morphogenesis. During branching morphogenesis, the endothelial cells become preferentially located near the central (trunk) epithelial cells and remain at a distance from the branch tips where acinar cells differentiate. This correlates with predominant expression of the angiogenic factor vascular endothelial growth factor-A (VEGF-A) in trunk cells. In vivo ablation of VEGF-A expression by pancreas-specific inactivation of floxed Vegfa alleles results in reduced endothelial development and in excessive acinar differentiation. On the contrary, acinar differentiation is repressed when endothelial cells are recruited around tip cells that overexpress VEGF-A. Treatment of embryonic day 12.5 explants with VEGF-A or with VEGF receptor antagonists confirms that acinar development is tightly controlled by endothelial cells. We also provide evidence that endothelial cells repress the expression of Ptf1a, a transcription factor essential for acinar differentiation, and stimulate the expression of Hey-1 and Hey-2, two repressors of Ptf1a activity. In explants, we provide evidence that VEGF-A signaling is required, but not sufficient, to induce endocrine differentiation. In conclusion, our data suggest that, in developing pancreas, epithelial production of VEGF-A determines the spatial organization of endothelial cells which, in turn, limit acinar differentiation of the epithelium.
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