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Wakabayashi Y, Shimono A, Terauchi Y, Zeng C, Hamada M, Semba K, Watanabe S, Ishikawa K. Identification of a novel RNA transcript TISPL upregulated by stressors that stimulate ATF4. Gene 2024; 917:148464. [PMID: 38615981 DOI: 10.1016/j.gene.2024.148464] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2024] [Revised: 04/02/2024] [Accepted: 04/10/2024] [Indexed: 04/16/2024]
Abstract
Cells sense, respond, and adapt to environmental conditions that cause stress. In a previous study using HeLa cells, we isolated reporter cells responding to the endoplasmic reticulum (ER) stress inducers, thapsigargin and tunicamycin, using a highly sensitive promoter trap vector system. Splinkerette PCR and 5' rapid amplification of cDNA ends (5' RACE) identified a novel transcript that is upregulated by ER stress. Its endogenous expression increased approximately 10-fold in response to thapsigargin and tunicamycin within 1 h, but was down-regulated after 4 h. Because the transcript starts from an intron of a long noncoding RNA known as LINC-PINT, we designated the newly identified transcript TISPL (transcript induced by stressors from LINC-PINTlocus). TISPL was also expressed under several other stress conditions. It was particularly increased > 10-fold upon glucose starvation and 7-fold by arsenite exposure. Furthermore, in silico analyses, including a ChIP-atlas search, revealed that there is an ATF4-binding region with a c/ebp-Atf response element (CARE) downstream of the transcription start site of TISPL. Based on these results, we hypothesized that TISPL may be induced by the phospho-eIF2α and ATF4- axis of the integrated stress response pathway, which is known to be activated by the stress conditions listed above. As expected, knockout of ATF4 abolished the stress-induced upregulation of TISPL. Our results indicate that TISPL may be a useful biomarker for detecting stress conditions that activate ATF4. Our highly sensitive trap vector system proved beneficial in discovering new biomarkers.
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Affiliation(s)
- Yutaro Wakabayashi
- Department of Life Science and Medical Bioscience, School of Advanced Science and Engineering, Waseda University, 2-2 Wakamatsu-cho, Shinjuku-ku, Tokyo 162-8480, Japan; Computational Bio Big-Data Open Innovation Laboratory (CBBD-OIL), National Institute of Advanced Industrial Science and Technology (AIST), 3-4-1 Okubo, Shinjuku-ku, Tokyo 169-8555, Japan
| | - Aika Shimono
- Department of Life Science and Medical Bioscience, School of Advanced Science and Engineering, Waseda University, 2-2 Wakamatsu-cho, Shinjuku-ku, Tokyo 162-8480, Japan
| | - Yuki Terauchi
- Department of Life Science and Medical Bioscience, School of Advanced Science and Engineering, Waseda University, 2-2 Wakamatsu-cho, Shinjuku-ku, Tokyo 162-8480, Japan
| | - Chao Zeng
- Computational Bio Big-Data Open Innovation Laboratory (CBBD-OIL), National Institute of Advanced Industrial Science and Technology (AIST), 3-4-1 Okubo, Shinjuku-ku, Tokyo 169-8555, Japan; Faculty of Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku-ku, Tokyo 169-8555, Japan
| | - Michiaki Hamada
- Computational Bio Big-Data Open Innovation Laboratory (CBBD-OIL), National Institute of Advanced Industrial Science and Technology (AIST), 3-4-1 Okubo, Shinjuku-ku, Tokyo 169-8555, Japan; Faculty of Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku-ku, Tokyo 169-8555, Japan; Graduate School of Medicine, Nippon Medical School, 1-1-5 Sendagi, Bunkyo-ku, Tokyo, 113-8602, Japan
| | - Kentaro Semba
- Department of Life Science and Medical Bioscience, School of Advanced Science and Engineering, Waseda University, 2-2 Wakamatsu-cho, Shinjuku-ku, Tokyo 162-8480, Japan; Translational Research Center, Fukushima Medical University, 1 Hikarigaoka, Fukushima 960-1295, Japan
| | - Shinya Watanabe
- Translational Research Center, Fukushima Medical University, 1 Hikarigaoka, Fukushima 960-1295, Japan
| | - Kosuke Ishikawa
- Japan Biological Informatics Consortium (JBiC), 2-4-32 Aomi, Koto-ku, Tokyo 135-8073, Japan.
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2
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Caricasulo MA, Zanetti A, Terao M, Garattini E, Paroni G. Cellular and micro-environmental responses influencing the antitumor activity of all-trans retinoic acid in breast cancer. Cell Commun Signal 2024; 22:127. [PMID: 38360674 PMCID: PMC10870483 DOI: 10.1186/s12964-024-01492-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Accepted: 01/18/2024] [Indexed: 02/17/2024] Open
Abstract
All-trans retinoic acid (ATRA) is the most relevant and functionally active metabolite of Vitamin-A. From a therapeutic standpoint, ATRA is the first example of pharmacological agent exerting its anti-tumor activity via a cell differentiating action. In the clinics, ATRA is used in the treatment of Acute Promyelocytic Leukemia, a rare form of myeloid leukemia with unprecedented therapeutic results. The extraordinary effectiveness of ATRA in the treatment of Acute Promyelocytic Leukemia patients has raised interest in evaluating the potential of this natural retinoid in the treatment of other types of neoplasias, with particular reference to solid tumors.The present article provides an overview of the available pre-clinical and clinical studies focussing on ATRA as a therapeutic agent in the context of breast cancer from a holistic point of view. In detail, we focus on the direct effects of ATRA in breast cancer cells as well as the underlying molecular mechanisms of action. In addition, we summarize the available information on the action exerted by ATRA on the breast cancer micro-environment, an emerging determinant of the progression and invasive behaviour of solid tumors. In particular we discuss the recent evidences of ATRA activity on the immune system. Finally, we analyse and discuss the results obtained with the few ATRA-based clinical trials conducted in the context of breast cancer.
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Affiliation(s)
- Maria Azzurra Caricasulo
- Department of Biochemistry and Molecular Pharmacology, Laboratory of Molecular Biology, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Via Mario Negri, 2, Milan, 20156, Italy
| | - Adriana Zanetti
- Department of Biochemistry and Molecular Pharmacology, Laboratory of Molecular Biology, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Via Mario Negri, 2, Milan, 20156, Italy
| | - Mineko Terao
- Department of Biochemistry and Molecular Pharmacology, Laboratory of Molecular Biology, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Via Mario Negri, 2, Milan, 20156, Italy
| | - Enrico Garattini
- Department of Biochemistry and Molecular Pharmacology, Laboratory of Molecular Biology, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Via Mario Negri, 2, Milan, 20156, Italy
| | - Gabriela Paroni
- Department of Biochemistry and Molecular Pharmacology, Laboratory of Molecular Biology, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Via Mario Negri, 2, Milan, 20156, Italy.
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Giurato G, Terenzi I, Chiuso F, Salvati A, Rizzo F, Tarallo R, Weisz A, Nassa G. Genome-wide DNA methylation changes upon DOT1L inhibition in hormone-responsive breast cancer cells. Front Cell Dev Biol 2023; 11:1308025. [PMID: 38099289 PMCID: PMC10720356 DOI: 10.3389/fcell.2023.1308025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Accepted: 11/13/2023] [Indexed: 12/17/2023] Open
Affiliation(s)
- Giorgio Giurato
- Laboratory of Molecular Medicine and Genomics, Department of Medicine, Surgery and Dentistry “Scuola Medica Salernitana”, University of Salerno, Baronissi, Italy
- Genome Research Center for Health - CRGS, Baronissi, Italy
| | - Ilaria Terenzi
- Laboratory of Molecular Medicine and Genomics, Department of Medicine, Surgery and Dentistry “Scuola Medica Salernitana”, University of Salerno, Baronissi, Italy
| | - Francesco Chiuso
- Department of Molecular Medicine and Medical Biotechnologies, University Federico II, Naples, Italy
| | - Annamaria Salvati
- Laboratory of Molecular Medicine and Genomics, Department of Medicine, Surgery and Dentistry “Scuola Medica Salernitana”, University of Salerno, Baronissi, Italy
- Molecular Pathology and Medical Genomics Program, Division of Oncology, AOU 'S. Giovanni di Dio e Ruggi d'Aragona', Università di Salerno, Salerno, Italy
| | - Francesca Rizzo
- Laboratory of Molecular Medicine and Genomics, Department of Medicine, Surgery and Dentistry “Scuola Medica Salernitana”, University of Salerno, Baronissi, Italy
- Genome Research Center for Health - CRGS, Baronissi, Italy
| | - Roberta Tarallo
- Laboratory of Molecular Medicine and Genomics, Department of Medicine, Surgery and Dentistry “Scuola Medica Salernitana”, University of Salerno, Baronissi, Italy
- Genome Research Center for Health - CRGS, Baronissi, Italy
| | - Alessandro Weisz
- Laboratory of Molecular Medicine and Genomics, Department of Medicine, Surgery and Dentistry “Scuola Medica Salernitana”, University of Salerno, Baronissi, Italy
- Genome Research Center for Health - CRGS, Baronissi, Italy
- Molecular Pathology and Medical Genomics Program, Division of Oncology, AOU 'S. Giovanni di Dio e Ruggi d'Aragona', Università di Salerno, Salerno, Italy
| | - Giovanni Nassa
- Laboratory of Molecular Medicine and Genomics, Department of Medicine, Surgery and Dentistry “Scuola Medica Salernitana”, University of Salerno, Baronissi, Italy
- Genome Research Center for Health - CRGS, Baronissi, Italy
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4
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Githaka JM, Pirayeshfard L, Goping IS. Cancer invasion and metastasis: Insights from murine pubertal mammary gland morphogenesis. Biochim Biophys Acta Gen Subj 2023; 1867:130375. [PMID: 37150225 DOI: 10.1016/j.bbagen.2023.130375] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 04/20/2023] [Accepted: 05/02/2023] [Indexed: 05/09/2023]
Abstract
Cancer invasion and metastasis accounts for the majority of cancer related mortality. A better understanding of the players that drive the aberrant invasion and migration of tumors cells will provide critical targets to inhibit metastasis. Postnatal pubertal mammary gland morphogenesis is characterized by highly proliferative, invasive, and migratory normal epithelial cells. Identifying the molecular regulators of pubertal gland development is a promising strategy since tumorigenesis and metastasis is postulated to be a consequence of aberrant reactivation of developmental stages. In this review, we summarize the pubertal morphogenesis regulators that are involved in cancer metastasis and revisit pubertal mammary gland transcriptome profiling to uncover both known and unknown metastasis genes. Our updated list of pubertal morphogenesis regulators shows that most are implicated in invasion and metastasis. This review highlights molecular linkages between development and metastasis and provides a guide for exploring novel metastatic drivers.
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Affiliation(s)
- John Maringa Githaka
- Department of Biochemistry, University of Alberta, Edmonton, AB T6G 2H7, Canada.
| | - Leila Pirayeshfard
- Department of Biochemistry, University of Alberta, Edmonton, AB T6G 2H7, Canada
| | - Ing Swie Goping
- Department of Biochemistry, University of Alberta, Edmonton, AB T6G 2H7, Canada; Department of Oncology, University of Alberta, Edmonton, AB T6G 2H7, Canada.
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5
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Chuang KT, Chiou SS, Hsu SH. Recent Advances in Transcription Factors Biomarkers and Targeted Therapies Focusing on Epithelial-Mesenchymal Transition. Cancers (Basel) 2023; 15:3338. [PMID: 37444447 DOI: 10.3390/cancers15133338] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 06/07/2023] [Accepted: 06/20/2023] [Indexed: 07/15/2023] Open
Abstract
Transcription factors involve many proteins in the process of transactivating or transcribing (none-) encoded DNA to initiate and regulate downstream signals, such as RNA polymerase. Their unique characteristic is that they possess specific domains that bind to specific DNA element sequences called enhancer or promoter sequences. Epithelial-mesenchymal transition (EMT) is involved in cancer progression. Many dysregulated transcription factors-such as Myc, SNAIs, Twists, and ZEBs-are key drivers of tumor metastasis through EMT regulation. This review summarizes currently available evidence related to the oncogenic role of classified transcription factors in EMT editing and epigenetic regulation, clarifying the roles of the classified conserved transcription factor family involved in the EMT and how these factors could be used as therapeutic targets in future investigations.
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Affiliation(s)
- Kai-Ting Chuang
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
- School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Shyh-Shin Chiou
- Division of Pediatric Hematology and Oncology, Department of Pediatrics, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Graduate Institute of Clinical Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Center of Applied Genomics, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Shih-Hsien Hsu
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
- Center of Applied Genomics, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 807, Taiwan
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6
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Liang S, Li X, Liu R, Hu J, Li Y, Sun J, Bai W. Malvidin-3- O-Glucoside Ameliorates Cadmium-Mediated Cell Dysfunction in the Estradiol Generation of Human Granulosa Cells. Nutrients 2023; 15:nu15030753. [PMID: 36771459 PMCID: PMC9921828 DOI: 10.3390/nu15030753] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Revised: 01/26/2023] [Accepted: 01/29/2023] [Indexed: 02/05/2023] Open
Abstract
Cadmium (Cd) is a frequent environmental pollutant associated with biological toxicity that can harm female reproduction. Anthocyanins have been reported to reduce the toxicity of Cd. In the present study, the protective effects and underlying mechanisms of malvidin-3-O-glucoside (M3G) against the toxicity of Cd on female reproduction in KGN cells (human ovarian granulosa-like tumor cells) were investigated. After treating cells with 10 µmol/L cadmium chloride, the results showed that M3G lessened Cd-induced KGN cell cytotoxicity better than malvidin and malvidin-3,5-O-diglucoside. Additionally, M3G significantly decreased the Cd-induced generation of reactive oxygen species, inhibited the Cd-induced arrest of the G2/M phase of the cell cycle, and increased estradiol (E2) production. According to transcriptomic results, M3G reduced the abnormal expression of genes that responded to estrogen. Additionally, M3G promoted the endogenous synthesis and secretion of E2 by controlling the expression of CYP17A1 and HSD17B7. The current findings indicated that M3G is of great potential to prevent Cd-induced female reproductive impairment as a dietary supplement.
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Affiliation(s)
- Shuer Liang
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China
- Department of Food Science and Engineering, Institute of Food Safety and Nutrition, Jinan University, Guangzhou 510632, China
| | - Xusheng Li
- Department of Food Science and Engineering, Institute of Food Safety and Nutrition, Jinan University, Guangzhou 510632, China
- The Sixth Affiliated Hospital, Jinan University, Dongguan 523576, China
| | - Ruijing Liu
- Department of Food Science and Engineering, Institute of Food Safety and Nutrition, Jinan University, Guangzhou 510632, China
| | - Jun Hu
- Department of Food Science and Engineering, Institute of Food Safety and Nutrition, Jinan University, Guangzhou 510632, China
| | - Yue Li
- Department of Food Science and Engineering, Institute of Food Safety and Nutrition, Jinan University, Guangzhou 510632, China
| | - Jianxia Sun
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China
- Correspondence: author: (J.S.); (W.B.); Tel.: +86-150-13236805 (J.S.); +86-020-85226630 (W.B.)
| | - Weibin Bai
- Department of Food Science and Engineering, Institute of Food Safety and Nutrition, Jinan University, Guangzhou 510632, China
- Correspondence: author: (J.S.); (W.B.); Tel.: +86-150-13236805 (J.S.); +86-020-85226630 (W.B.)
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7
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Chijimatsu R, Kobayashi S, Takeda Y, Kitakaze M, Tatekawa S, Arao Y, Nakayama M, Tachibana N, Saito T, Ennishi D, Tomida S, Sasaki K, Yamada D, Tomimaru Y, Takahashi H, Okuzaki D, Motooka D, Ohshiro T, Taniguchi M, Suzuki Y, Ogawa K, Mori M, Doki Y, Eguchi H, Ishii H. Establishment of a reference single-cell RNA sequencing dataset for human pancreatic adenocarcinoma. iScience 2022; 25:104659. [PMID: 35847558 PMCID: PMC9283889 DOI: 10.1016/j.isci.2022.104659] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Revised: 05/14/2022] [Accepted: 06/17/2022] [Indexed: 11/28/2022] Open
Abstract
Single-cell RNA sequencing (scRNAseq) has been used to assess the intra-tumor heterogeneity and microenvironment of pancreatic ductal adenocarcinoma (PDAC). However, previous knowledge is not fully universalized. Here, we built a single cell atlas of PDAC from six datasets containing over 70 samples and >130,000 cells, and demonstrated its application to the reanalysis of the previous bulk transcriptomic cohorts and inferring cell–cell communications. The cell decomposition of bulk transcriptomics using scRNAseq data showed the cellular heterogeneity of PDAC; moreover, high levels of tumor cells and fibroblasts were indicative of poor-prognosis. Refined tumor subtypes signature indicated the tumor cell dynamics in intra-tumor and their specific regulatory network. We further identified functionally distinct tumor clusters that had close interaction with fibroblast subtypes via different signaling pathways dependent on subtypes. Our analysis provided a reference dataset for PDAC and showed its utility in research on the microenvironment of intra-tumor heterogeneity. Generation of reference single cell atlas for pancreatic adenocarcinoma Decomposition of bulk transcriptomics showed the heterogeneous microenvironment Refined tumor subtypes signature indicated the tumor cell dynamics in intra-tumor Two subtype of fibroblast support the growth of tumor cell with distinct pathways
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Affiliation(s)
- Ryota Chijimatsu
- Department of Medical Data Science, Center of Medical Innovation and Translational Research, Osaka University Graduate School of Medicine, Yamadaoka 2-2, Suita, Osaka 565-0871, Japan
- Center for Comprehensive Genomic Medicine, Okayama University Hospital, Shikata-cho, Kita-ku, Okayama 700-8558, Japan
| | - Shogo Kobayashi
- Department of Gastroenterology, Osaka University Graduate School of Medicine, Yamadaoka 2-2, Suita, Osaka 565-0871, Japan
| | - Yu Takeda
- Department of Gastroenterology, Osaka University Graduate School of Medicine, Yamadaoka 2-2, Suita, Osaka 565-0871, Japan
| | - Masatoshi Kitakaze
- Department of Gastroenterology, Osaka University Graduate School of Medicine, Yamadaoka 2-2, Suita, Osaka 565-0871, Japan
| | - Shotaro Tatekawa
- Department of Radiation Oncology, Osaka University Graduate School of Medicine, Yamadaoka 2-2, Suita, Osaka 565-0871, Japan
| | - Yasuko Arao
- Department of Medical Data Science, Center of Medical Innovation and Translational Research, Osaka University Graduate School of Medicine, Yamadaoka 2-2, Suita, Osaka 565-0871, Japan
| | - Mika Nakayama
- Department of Medical Data Science, Center of Medical Innovation and Translational Research, Osaka University Graduate School of Medicine, Yamadaoka 2-2, Suita, Osaka 565-0871, Japan
| | - Naohiro Tachibana
- Department of Orthopaedic Surgery, Section of Sensory and Motor System Medicine, Graduate School of Medicine, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-8655, Japan
| | - Taku Saito
- Department of Orthopaedic Surgery, Section of Sensory and Motor System Medicine, Graduate School of Medicine, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-8655, Japan
| | - Daisuke Ennishi
- Center for Comprehensive Genomic Medicine, Okayama University Hospital, Shikata-cho, Kita-ku, Okayama 700-8558, Japan
| | - Shuta Tomida
- Center for Comprehensive Genomic Medicine, Okayama University Hospital, Shikata-cho, Kita-ku, Okayama 700-8558, Japan
| | - Kazuki Sasaki
- Department of Gastroenterology, Osaka University Graduate School of Medicine, Yamadaoka 2-2, Suita, Osaka 565-0871, Japan
| | - Daisaku Yamada
- Department of Gastroenterology, Osaka University Graduate School of Medicine, Yamadaoka 2-2, Suita, Osaka 565-0871, Japan
| | - Yoshito Tomimaru
- Department of Gastroenterology, Osaka University Graduate School of Medicine, Yamadaoka 2-2, Suita, Osaka 565-0871, Japan
| | - Hidenori Takahashi
- Department of Gastroenterology, Osaka University Graduate School of Medicine, Yamadaoka 2-2, Suita, Osaka 565-0871, Japan
| | - Daisuke Okuzaki
- Genome Information Research Center, Research Institute for Microbial Diseases, Osaka University, Suita, Osaka 565-0871, Japan
| | - Daisuke Motooka
- Genome Information Research Center, Research Institute for Microbial Diseases, Osaka University, Suita, Osaka 565-0871, Japan
| | - Takahito Ohshiro
- SANKEN (The Institute of Scientific and Industrial Research), Osaka University, 8-1 Mihogaoka, Osaka, Ibaraki 567-0047, Japan
| | - Masateru Taniguchi
- SANKEN (The Institute of Scientific and Industrial Research), Osaka University, 8-1 Mihogaoka, Osaka, Ibaraki 567-0047, Japan
| | - Yutaka Suzuki
- Laboratory of Systems Genomics, Department of Computational Biology and Medical Sciences, Graduate School of Frontier Sciences, The University of Tokyo, Kashiwanoha, Kashiwa-shi, Chiba 272-8562, Japan
| | - Kazuhiko Ogawa
- Department of Radiation Oncology, Osaka University Graduate School of Medicine, Yamadaoka 2-2, Suita, Osaka 565-0871, Japan
| | - Masaki Mori
- Department of Gastroenterology, Osaka University Graduate School of Medicine, Yamadaoka 2-2, Suita, Osaka 565-0871, Japan
- Tokai University Graduate School of Medicine, Shimokasuya, Isehara, Kanagawa 259-1193, Japan
| | - Yuichiro Doki
- Department of Gastroenterology, Osaka University Graduate School of Medicine, Yamadaoka 2-2, Suita, Osaka 565-0871, Japan
| | - Hidetoshi Eguchi
- Department of Gastroenterology, Osaka University Graduate School of Medicine, Yamadaoka 2-2, Suita, Osaka 565-0871, Japan
- Corresponding author
| | - Hideshi Ishii
- Department of Medical Data Science, Center of Medical Innovation and Translational Research, Osaka University Graduate School of Medicine, Yamadaoka 2-2, Suita, Osaka 565-0871, Japan
- Corresponding author
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The Role of ATRA, Natural Ligand of Retinoic Acid Receptors, on EMT-Related Proteins in Breast Cancer: Minireview. Int J Mol Sci 2021; 22:ijms222413345. [PMID: 34948142 PMCID: PMC8705994 DOI: 10.3390/ijms222413345] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Revised: 12/09/2021] [Accepted: 12/10/2021] [Indexed: 12/17/2022] Open
Abstract
The knowledge of the structure, function, and abundance of specific proteins related to the EMT process is essential for developing effective diagnostic approaches to cancer with the perspective of diagnosis and therapy of malignancies. The success of all-trans retinoic acid (ATRA) differentiation therapy in acute promyelocytic leukemia has stimulated studies in the treatment of other tumors with ATRA. This review will discuss the impact of ATRA use, emphasizing epithelial-mesenchymal transition (EMT) proteins in breast cancer, of which metastasis and recurrence are major causes of death.
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Li J, Shen J, Qin L, Lu D, Ding E. LBX2-AS1 Activates FSTL3 by Binding to Transcription Factor RARα to Foster Proliferation, Migration, and Invasion of Thyroid Cancer. Front Genet 2021; 12:765033. [PMID: 34858481 PMCID: PMC8632031 DOI: 10.3389/fgene.2021.765033] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Accepted: 10/25/2021] [Indexed: 02/01/2023] Open
Abstract
Background: Thyroid cancer is a frequent endocrine tumor in women. It is of great significance to investigate the molecular mechanism of progression of thyroid cancer. Methods: Gene expression data set and clinical data were downloaded from The Cancer Genome Atlas database for differential expression analysis. The triplet of downstream transcription factors (TFs) and modulatory genes of target lncRNA in thyroid cancer was predicted by the lncMAP database. mRNA and protein expression of lncRNA LBX2-AS1, RARα, and FSTL3 were detected by qRT-PCR and western blot. The localization of lncRNA LBX2-AS1 in cells was tested by Fluorescence in situ hybridization assay. The RNA immunoprecipitation assay was applied to verify the binding relationship between lncRNA LBX2-AS1 and FSTL3. ChIP and dual-luciferase assays were used to prove the binding relationship between RARα and FSTL3. Cell function experiments were used to test cell proliferation, migration and invasion in each treatment group. The role of lncRNA LBX2-AS1 in thyroid cancer progression was also confirmed in nude mice. Results: Bioinformatics analysis indicated that lncRNA LBX2-AS1, RARα, FSTL3 were remarkably fostered in thyroid cancer tissue, and LBX2-AS1 was evidently correlated with clinical features. The LncMAP triplet prediction showed that LBX2-AS1 recruited TF RARα to modulate FSTL3. RIP assay confirmed that LBX2-AS1 was prominently enriched on RARα. ChIP and dual-luciferase report assays unveiled that RARα bound to the promoter region of FSTL3 and functioned as a TF. Cell function experiments uncovered that LBX2-AS1 boosted the progression of thyroid cancer. The rescue experiments showed that LBX2-AS1 recruited the TF RARα to hasten the transcription activity of FSTL3 and thus promoted the development of thyroid cancer. Conclusion: The integrative results demonstrated that LBX2-AS1 activated FSTL3 by binding to TF RARα to hasten proliferation, migration and invasion of thyroid cancer.
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Affiliation(s)
- Jia Li
- Department of Nuclear Medicine, Tianjin First Central Hospital, School of Medicine Nankai University, Tianjin, China
| | - Jie Shen
- Department of Nuclear Medicine, Tianjin First Central Hospital, School of Medicine Nankai University, Tianjin, China
| | - Lan Qin
- Department of Nuclear Medicine, Tianjin First Central Hospital, School of Medicine Nankai University, Tianjin, China
| | - Dongyan Lu
- Department of Nuclear Medicine, Tianjin First Central Hospital, School of Medicine Nankai University, Tianjin, China
| | - Enci Ding
- Department of Nuclear Medicine, Tianjin First Central Hospital, School of Medicine Nankai University, Tianjin, China
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10
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Segura-Bautista D, Maya-Nunez G, Aguilar-Rojas A, Huerta-Reyes M, Pérez-Solis MA. Contribution of Stemness-linked Transcription Regulators to the Progression of Breast Cancer. Curr Mol Med 2021; 22:766-778. [PMID: 34819003 DOI: 10.2174/1566524021666211124154803] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Revised: 05/05/2021] [Accepted: 08/26/2021] [Indexed: 11/22/2022]
Abstract
Although there are currently several factors that allow measuring the risk of having breast cancer or predicting its progression, the underlying causes of this malignancy have remained unknown. Several molecular studies have described some mechanisms involved in the progress of breast cancer. These have helped in identifying new targets with therapeutic potential. However, despite the therapeutic strategies implemented from the advances achieved in breast cancer research, a large percentage of patients with breast cancer die due to the spread of malignant cells to other tissues or organs, such as bones and lungs. Therefore, determining the processes that promote the migration of malignant cells remains one of the greatest challenges for oncological research. Several research groups have reported evidence on how the dedifferentiation of tumor cells leads to the acquisition of stemness characteristics, such as invasion, metastasis, the capability to evade the immunological response, and resistance to several cytotoxic drugs. These phenotypic changes have been associated with a complex reprogramming of gene expression in tumor cells during the Epithelial-Mesenchymal Transition (EMT). Considering the determining role that the transcriptional regulation plays in the expression of the specific characteristics and attributes of breast cancer during ETM, in the present work, we reviewed and analyzed several transcriptional mechanisms that support the mesenchymal phenotype. In the same way, we established the importance of transcription factors with a therapeutic perspective in the progress of breast cancer.
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Affiliation(s)
- David Segura-Bautista
- Medical Research Unit in Reproductive Medicine, UMAE Hospital de Gineco Obstetricia no. 4 'Luis Castelazo-Ayala', Instituto Mexicano del Seguro Social, Mexico City. Mexico
| | - Guadalupe Maya-Nunez
- Medical Research Unit in Reproductive Medicine, UMAE Hospital de Gineco Obstetricia no. 4 'Luis Castelazo-Ayala', Instituto Mexicano del Seguro Social, Mexico City. Mexico
| | - Arturo Aguilar-Rojas
- Medical Research Unit in Reproductive Medicine, UMAE Hospital de Gineco Obstetricia no. 4 'Luis Castelazo-Ayala', Instituto Mexicano del Seguro Social, Mexico City. Mexico
| | - Maira Huerta-Reyes
- Medical Research Unit in Nephrological Diseases, Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social, Mexico City. Mexico
| | - Marco Allan Pérez-Solis
- Medical Research Unit in Reproductive Medicine, UMAE Hospital de Gineco Obstetricia no. 4 'Luis Castelazo-Ayala', Instituto Mexicano del Seguro Social, Mexico City. Mexico
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11
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Liu J, Zhang Y, Li S, Sun F, Wang G, Wei D, Yang T, Gu S. Androgen deprivation‑induced OPHN1 amplification promotes castration‑resistant prostate cancer. Oncol Rep 2021; 47:3. [PMID: 34738630 PMCID: PMC8600397 DOI: 10.3892/or.2021.8214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Accepted: 09/27/2021] [Indexed: 11/20/2022] Open
Abstract
Androgen deprivation therapy (ADT) is used to treat prostate cancer (PCa). However, ADT may increase the expression of androgen receptor (AR) through the amplification of chromosome X. The gene oligophrenin 1 (OPHN1) is located in the same region as the AR gene, which could be amplified by ADT. Thus, the role of OPHN1 in PCa pathology was investigated. The expression status of OPHN1 in PCa was searched in The Cancer Genome Atlas (TCGA) database. Androgen-sensitive cells LNCaP and 22RV1 were cultured under ADT conditions, and then the expression of OPHN1 was evaluated by northern blotting. The expression of OPHN1 was enhanced or knocked down in LNCaP and 22RV1 cells by transfection. Subsequently, the LNCaP and 22RV1 cells were cultured under ADT, and the viability rate, apoptosis, and migration of cells were assessed by MTT, flow cytometry, and Transwell assay respectively. The expression of OPHN1 was also enhanced or knocked down in androgen-insensitive PC3 cells, and then the effects of OPHN1 on the viability, apoptosis, and migration of PC3 cells were assessed. A mouse xenograft model was created by injecting LNCaP cells with OPHN1 overexpression subcutaneously, and the tumor growth rates were monitored. In TCGA database, amplification of the OPHN1 gene was observed in the PCa tumors. ADT increased the expression of OPHN1 in LNCaP and 22RV1 cells (P<0.05). OPHN1 could promote resistance of LNCaP and 22RV1 cells to ADT by promoting cell survival and preventing their apoptosis (P<0.05). In addition, OPHN1 contributed to cell viability (P<0.05) and enhanced the migration ability in LNCaP, 22RV1 and PC3 cells (P<0.05). In the mouse model, the PCa xenograft with OPHN1 overexpression had a higher growth rate and was more resistant to the ADT condition (P<0.05). In summary, ADT induced the overexpression of OPHN1 in PCa, which facilitated PCa cell survival and promoted PCa progression.
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Affiliation(s)
- Junjiang Liu
- Department of Urology, Hebei General Hospital, Shijiazhuang, Hebei 050051, P.R. China
| | - Yunxia Zhang
- Department of Obstetrics and Gynecology, Hebei General Hospital, Shijiazhuang, Hebei 050051, P.R. China
| | - Shoubin Li
- Department of Urology, Hebei General Hospital, Shijiazhuang, Hebei 050051, P.R. China
| | - Fuzhen Sun
- Department of Urology, Hebei General Hospital, Shijiazhuang, Hebei 050051, P.R. China
| | - Gang Wang
- Department of Urology, Hebei General Hospital, Shijiazhuang, Hebei 050051, P.R. China
| | - Dong Wei
- Department of Urology, Hebei General Hospital, Shijiazhuang, Hebei 050051, P.R. China
| | - Tao Yang
- Department of Urology, Hebei General Hospital, Shijiazhuang, Hebei 050051, P.R. China
| | - Shouyi Gu
- Department of Urology, Hebei General Hospital, Shijiazhuang, Hebei 050051, P.R. China
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12
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Mathison AJ, Kerketta R, de Assuncao TM, Leverence E, Zeighami A, Urrutia G, Stodola TJ, di Magliano MP, Iovanna JL, Zimmermann MT, Lomberk G, Urrutia R. Kras G12D induces changes in chromatin territories that differentially impact early nuclear reprogramming in pancreatic cells. Genome Biol 2021; 22:289. [PMID: 34649604 PMCID: PMC8518179 DOI: 10.1186/s13059-021-02498-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Accepted: 09/14/2021] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND Pancreatic ductal adenocarcinoma initiation is most frequently caused by Kras mutations. RESULTS Here, we apply biological, biochemical, and network biology methods to validate GEMM-derived cell models using inducible KrasG12D expression. We describe the time-dependent, chromatin remodeling program that impacts function during early oncogenic signaling. We find that the KrasG12D-induced transcriptional response is dominated by downregulated expression concordant with layers of epigenetic events. More open chromatin characterizes the ATAC-seq profile associated with a smaller group of upregulated genes and epigenetic marks. RRBS demonstrates that promoter hypermethylation does not account for the silencing of the extensive gene promoter network. Moreover, ChIP-Seq reveals that heterochromatin reorganization plays little role in this early transcriptional program. Notably, both gene activation and silencing primarily depend on the marking of genes with a combination of H3K27ac, H3K4me3, and H3K36me3. Indeed, integrated modeling of all these datasets shows that KrasG12D regulates its transcriptional program primarily through unique super-enhancers and enhancers, and marking specific gene promoters and bodies. We also report chromatin remodeling across genomic areas that, although not contributing directly to cis-gene transcription, are likely important for KrasG12D functions. CONCLUSIONS In summary, we report a comprehensive, time-dependent, and coordinated early epigenomic program for KrasG12D in pancreatic cells, which is mechanistically relevant to understanding chromatin remodeling events underlying transcriptional outcomes needed for the function of this oncogene.
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Affiliation(s)
- Angela J Mathison
- Genomic Science and Precision Medicine Center (GSPMC), Medical College of Wisconsin, Milwaukee, WI, USA
- Division of Research, Department of Surgery, Medical College of Wisconsin, Milwaukee, WI, USA
| | - Romica Kerketta
- Genomic Science and Precision Medicine Center (GSPMC), Medical College of Wisconsin, Milwaukee, WI, USA
- Division of Research, Department of Surgery, Medical College of Wisconsin, Milwaukee, WI, USA
| | | | - Elise Leverence
- Genomic Science and Precision Medicine Center (GSPMC), Medical College of Wisconsin, Milwaukee, WI, USA
| | - Atefeh Zeighami
- Genomic Science and Precision Medicine Center (GSPMC), Medical College of Wisconsin, Milwaukee, WI, USA
| | - Guillermo Urrutia
- Division of Research, Department of Surgery, Medical College of Wisconsin, Milwaukee, WI, USA
| | - Timothy J Stodola
- Genomic Science and Precision Medicine Center (GSPMC), Medical College of Wisconsin, Milwaukee, WI, USA
- Division of Research, Department of Surgery, Medical College of Wisconsin, Milwaukee, WI, USA
| | | | - Juan L Iovanna
- Centre de Recherche en Cancérologie de Marseille (CRCM), INSERM U1068, CNRS UMR 7258, Aix-Marseille Université and Institut Paoli-Calmettes, Parc Scientifique et Technologique de Luminy, Marseille, France
| | - Michael T Zimmermann
- Genomic Science and Precision Medicine Center (GSPMC), Medical College of Wisconsin, Milwaukee, WI, USA
- Clinical and Translational Sciences Institute, Medical College of Wisconsin, Milwaukee, WI, USA
- Department of Biochemistry, Medical College of Wisconsin, Milwaukee, WI, USA
| | - Gwen Lomberk
- Genomic Science and Precision Medicine Center (GSPMC), Medical College of Wisconsin, Milwaukee, WI, USA.
- Division of Research, Department of Surgery, Medical College of Wisconsin, Milwaukee, WI, USA.
- Department of Pharmacology and Toxicology, Medical College of Wisconsin, Milwaukee, WI, USA.
| | - Raul Urrutia
- Genomic Science and Precision Medicine Center (GSPMC), Medical College of Wisconsin, Milwaukee, WI, USA.
- Division of Research, Department of Surgery, Medical College of Wisconsin, Milwaukee, WI, USA.
- Department of Biochemistry, Medical College of Wisconsin, Milwaukee, WI, USA.
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13
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Li Y, Jaiswal SK, Kaur R, Alsaadi D, Liang X, Drews F, DeLoia JA, Krivak T, Petrykowska HM, Gotea V, Welch L, Elnitski L. Differential gene expression identifies a transcriptional regulatory network involving ER-alpha and PITX1 in invasive epithelial ovarian cancer. BMC Cancer 2021; 21:768. [PMID: 34215221 PMCID: PMC8254236 DOI: 10.1186/s12885-021-08276-8] [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: 12/30/2020] [Accepted: 04/23/2021] [Indexed: 12/16/2022] Open
Abstract
Background The heterogeneous subtypes and stages of epithelial ovarian cancer (EOC) differ in their biological features, invasiveness, and response to chemotherapy, but the transcriptional regulators causing their differences remain nebulous. Methods In this study, we compared high-grade serous ovarian cancers (HGSOCs) to low malignant potential or serous borderline tumors (SBTs). Our aim was to discover new regulatory factors causing distinct biological properties of HGSOCs and SBTs. Results In a discovery dataset, we identified 11 differentially expressed genes (DEGs) between SBTs and HGSOCs. Their expression correctly classified 95% of 267 validation samples. Two of the DEGs, TMEM30B and TSPAN1, were significantly associated with worse overall survival in patients with HGSOC. We also identified 17 DEGs that distinguished stage II vs. III HGSOC. In these two DEG promoter sets, we identified significant enrichment of predicted transcription factor binding sites, including those of RARA, FOXF1, BHLHE41, and PITX1. Using published ChIP-seq data acquired from multiple non-ovarian cell types, we showed additional regulatory factors, including AP2-gamma/TFAP2C, FOXA1, and BHLHE40, bound at the majority of DEG promoters. Several of the factors are known to cooperate with and predict the presence of nuclear hormone receptor estrogen receptor alpha (ER-alpha). We experimentally confirmed ER-alpha and PITX1 presence at the DEGs by performing ChIP-seq analysis using the ovarian cancer cell line PEO4. Finally, RNA-seq analysis identified recurrent gene fusion events in our EOC tumor set. Some of these fusions were significantly associated with survival in HGSOC patients; however, the fusion genes are not regulated by the transcription factors identified for the DEGs. Conclusions These data implicate an estrogen-responsive regulatory network in the differential gene expression between ovarian cancer subtypes and stages, which includes PITX1. Importantly, the transcription factors associated with our DEG promoters are known to form the MegaTrans complex in breast cancer. This is the first study to implicate the MegaTrans complex in contributing to the distinct biological trajectories of malignant and indolent ovarian cancer subtypes. Supplementary Information The online version contains supplementary material available at 10.1186/s12885-021-08276-8.
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Affiliation(s)
- Yichao Li
- School of Electrical Engineering and Computer Science, Ohio University, Athens, OH, USA
| | - Sushil K Jaiswal
- Translational Functional Genomics Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Rupleen Kaur
- Translational Functional Genomics Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Dana Alsaadi
- Translational Functional Genomics Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Xiaoyu Liang
- School of Electrical Engineering and Computer Science, Ohio University, Athens, OH, USA
| | - Frank Drews
- School of Electrical Engineering and Computer Science, Ohio University, Athens, OH, USA
| | - Julie A DeLoia
- Present address: Dignity Health Global Education, Roanoke, Virginia, USA
| | - Thomas Krivak
- Department of Obstetrics, Gynecology and Reproductive Sciences, University of Pittsburgh Medical School, Pittsburgh, PA, USA.,Present address: The Western Pennsylvania Hospital, Pittsburgh, PA, USA
| | - Hanna M Petrykowska
- Translational Functional Genomics Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Valer Gotea
- Translational Functional Genomics Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Lonnie Welch
- School of Electrical Engineering and Computer Science, Ohio University, Athens, OH, USA
| | - Laura Elnitski
- Translational Functional Genomics Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, 20892, USA.
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14
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Wang S, Bi W, Liu Y, Cheng J, Sun W, Wu G, Xu X. The Antagonist of Retinoic Acid Receptor α, ER-50891 Antagonizes the Inhibitive Effect of All-Trans Retinoic Acid and Rescues Bone Morphogenetic Protein 2-Induced Osteoblastogenic Differentiation. DRUG DESIGN DEVELOPMENT AND THERAPY 2020; 14:297-308. [PMID: 32158187 PMCID: PMC6985983 DOI: 10.2147/dddt.s215786] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Accepted: 12/04/2019] [Indexed: 12/18/2022]
Abstract
Background Hypervitaminosis A, alcoholism or medical treatment for acute promyelocytic leukaemia may cause unphysiologically high accumulation of all-trans retinoic acid (ATRA), which could inhibit osteoblastogenesis, thereby triggering osteoporosis. We have shown that bone morphogenetic protein-2 (BMP-2) can only partially antagonize the inhibitive effects of ATRA. In this study, we hypothesized that antagonists of retinoic acid receptors (RARs) could further antagonize the inhibitive effect of ATRA and rescue BMP2-induced osteoblastogenesis. Materials and Methods We first screened the dose-dependent effects of the specific antagonists of RAR α, β and γ and transforming growth factor-beta receptor (ER-50891, LE-135, MM11253, and SB-43142, respectively) on ATRA-induced inhibition of the total cell metabolic activity and proliferation of preosteoblasts. We selected ER-50891 and tested its effects on osteoblastogenesis with the presence or absence of 1 μM ATRA and/or 200 ng/mL BMP-2. We measured the following parameters: Alkaline phosphatase activity (ALP), osteocalcin (OCN) expression and extracellular matrix mineralization as well as the level of phosphorylated Smad1/5. Results ER-50891 but not LE-135, MM11253, or SB-431542 significantly antagonized the inhibition of ATRA and enhanced the total cell metabolic activity and proliferation of preosteoblasts. Dose-dependent assays show ER-50891 could also rescue ATRA inhibited OCN expression and mineralization with or without the induction of BMP. ER-50891 also suppressed the ALP activity that was synergistically enhanced by BMP and ATRA. Neither ATRA, nor ER-50891 or their combination significantly affected the level of BMP-induced phosphorylated Smad1/5. Conclusion The antagonist of RARα, ER-50891 could significantly attenuate ATRA’s inhibitive effects on BMP 2-induced osteoblastogenesis.
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Affiliation(s)
- Siqian Wang
- Department of Implantology, School and Hospital of Stomatology, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, Shandong Province, People's Republic of China
| | - Wenjuan Bi
- College of Stomatology, North China University of Science and Technology, Tangshan, Hebei Province, People's Republic of China
| | - Yi Liu
- Key Laboratory of Oral Medicine, Guangzhou Institute of Oral Disease, Stomatology Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, People's Republic of China
| | - Jiayi Cheng
- Department of Oral Implantology and Prosthetic Dentistry, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam (UvA) and Vrije Universiteit Amsterdam (VU), Amsterdam, The Netherlands
| | - Wei Sun
- The Affiliated Stomatology Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, People's Republic of China
| | - Gang Wu
- Department of Oral Implantology and Prosthetic Dentistry, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam (UvA) and Vrije Universiteit Amsterdam (VU), Amsterdam, The Netherlands
| | - Xin Xu
- Department of Implantology, School and Hospital of Stomatology, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, Shandong Province, People's Republic of China
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15
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Kim MS, Kim D, Kim JR. Stage-Dependent Gene Expression Profiling in Colorectal Cancer. IEEE/ACM TRANSACTIONS ON COMPUTATIONAL BIOLOGY AND BIOINFORMATICS 2019; 16:1685-1692. [PMID: 29994071 DOI: 10.1109/tcbb.2018.2814043] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Temporal gene expression profiles have been widely considered to uncover the mechanism of cancer development and progression. Gene expression patterns, however, have been analyzed for limited stages with small samples, without proper data pre-processing, in many cases. With those approaches, it is difficult to unveil the mechanism of cancer development over time. In this study, we analyzed gene expression profiles of two independent colorectal cancer sample datasets, each of which contained 556 and 566 samples, respectively. To find specific gene expression changes according to cancer stage, we applied the linear mixed-effect regression model (LMER) that controls other clinical variables. Based on this methodology, we found two types of gene expression patterns: continuously increasing and decreasing genes as cancer develops. We found that continuously increasing genes are related to the nervous and developmental system, whereas the others are related to the cell cycle and metabolic processes. We further analyzed connected sub-networks related to the two types of genes. From these results, we suggest that the gene expression profile analysis can be used to understand underlying the mechanisms of cancer development such as cancer growth and metastasis. Furthermore, our approach can provide a good guideline for advancing our understanding of cancer developmental processes.
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16
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Yin L, Li W, Wang G, Shi H, Wang K, Yang H, Peng B. NR1B2 suppress kidney renal clear cell carcinoma (KIRC) progression by regulation of LATS 1/2-YAP signaling. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2019; 38:343. [PMID: 31391070 PMCID: PMC6686564 DOI: 10.1186/s13046-019-1344-3] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Accepted: 07/24/2019] [Indexed: 12/13/2022]
Abstract
BACKGROUND Kidney Renal Clear Cell Carcinoma (KIRC) accounts for 75% of all renal cancers. Previous study had conflict evidences regarding NR1B2 role in cancer, and its expression and biological role in KIRC remained unclear. Our aims were to characterize the role of NR1B2 in KIRC. METHODS NR1B2 expression in TCGA database were analyzed. Clinical KIRC samples were examined by RT-PCR, western blot and tissue microarray (TMA). The relationship between NR1B2 expression and the clinical characteristics were evaluated. KIRC cell line were stably overexpressed NR1B2 or with an NR1B2 knocked down using lentivirus system. The cells were analyzed by migration and invasion assay, then injected into nude mice to assess tumor growth and metastasis. EMT marker expression and LATS 1/2-YAP pathway demonstration were detected by the TCGA database and western blot. RESULTS The expression of NR1B2 in KIRC was significantly down-regulated in the TCGA database and our clinical samples. Moreover, NR1B2 expression negatively correlated with tumor stage and positively correlated with overall and disease-free survival rate. Univariate and multivariate analyses indicated the expression level of NR1B2 could be used as an independent factor for predicting the prognosis of KIRC. Overexpression NR1B2 significantly inhibited and knockdown NR1B2 markedly promoted KIRC cell invasion and metastasis both in vitro and in vivo. Mechanistic investigations revealed that NR1B2 might be a tumor suppressor to inhibit EMT through the LATS1/2-YAP pathway. CONCLUSIONS our results defined NR1B2 as a tumor suppressor in KIRC that restricted EMT by the LATS1/2-YAP pathway.
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Affiliation(s)
- Lei Yin
- Department of Urology, Shanghai Tenth People's Hospital, School of Medicine in Tongji University, Shanghai, China
| | - Wenjia Li
- Shanghai Institute of Cardiovascular Disease, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Guangchun Wang
- Department of Urology, Shanghai Tenth People's Hospital, School of Medicine in Tongji University, Shanghai, China
| | - Heng Shi
- Department of Urology, Shanghai Tenth People's Hospital, School of Medicine in Tongji University, Shanghai, China.,Department of Urology, Shanghai Tenth People's Hospital, Nanjing Medical University, Nanjing, China
| | - Keyi Wang
- Department of Urology, Shanghai Tenth People's Hospital, School of Medicine in Tongji University, Shanghai, China
| | - Huan Yang
- Department of Urology, Tongji Hospital,Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
| | - Bo Peng
- Department of Urology, Shanghai Tenth People's Hospital, School of Medicine in Tongji University, Shanghai, China.
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17
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Huang GL, Chen QX, Ma JJ, Sui SY, Wang YN, Shen DY. Retinoic acid receptor α facilitates human colorectal cancer progression via Akt and MMP2 signaling. Onco Targets Ther 2019; 12:3087-3098. [PMID: 31118667 PMCID: PMC6498958 DOI: 10.2147/ott.s200261] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2019] [Accepted: 04/03/2019] [Indexed: 01/20/2023] Open
Abstract
Purpose: Retinoic acid α (RARα) is overexpressed in various tumors and facilitates cancer progression. Although RARα has been shown to facilitate colorectal cancer (CRC) progression, more efforts to characterize mechanisms of RARα in CRC are needed in order to develop better target-based drugs for tumor therapy. Methods: RARα expression in CRC was assessed by IHC. EdU, QPCR, Western blotting, dual-luciferase reporter assay and ChIP were performed to explore the role of RARα in CRC and the mechanism involoved. Results: Here, we show an overexpression of RARα in 73.5% (i.e., 25 of 34 human CRC specimens). RARα knockdown decreased cell proliferation, migration, and invasion. Such phenotypic manifestations can be correlated to lowered activation of Akt and expression of PCNA (proliferating cell nuclear antigen) as well as MMP2 (matrix metallopeptidase). Mechanistically, RARα facilitates CRC growth through Akt signaling activation to cause levels of PCNA to be upregulated. Furthermore, RARα promotes migration and invasion of CRC cells by directly recruiting the MMP2 promoter to enhance the expression of MMP2. Conclusions: These findings demonstrate that CRC carcinogenesis is promoted by RARα via an enhanced Akt signaling and by increasing MMP2 transcription. CRC therapy can examine the use of RARα as a prospective molecular target.
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Affiliation(s)
- Gui-Li Huang
- Agricultural Product Storage and Processing Laboratory, Suzhou Academy of Agricultural Sciences, Suzhou, 215155, People's Republic of China
| | - Qing-Xi Chen
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen 361102, People's Republic of China
| | - Jia-Jia Ma
- Agricultural Product Storage and Processing Laboratory, Suzhou Academy of Agricultural Sciences, Suzhou, 215155, People's Republic of China
| | - Si-Yao Sui
- Agricultural Product Storage and Processing Laboratory, Suzhou Academy of Agricultural Sciences, Suzhou, 215155, People's Republic of China
| | - Yu-Ning Wang
- Agricultural Product Storage and Processing Laboratory, Suzhou Academy of Agricultural Sciences, Suzhou, 215155, People's Republic of China
| | - Dong-Yan Shen
- Biobank, The First Affiliated Hospital of Xiamen University, Xiamen 361003, People's Republic of China
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18
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Saadeldin IM, Swelum AAA, Elsafadi M, Mahmood A, Yaqoob SH, Alfayez M, Alowaimer AN. Effects of all-trans retinoic acid on the in vitro maturation of camel (Camelus dromedarius) cumulus-oocyte complexes. J Reprod Dev 2019; 65:215-221. [PMID: 30760649 PMCID: PMC6584179 DOI: 10.1262/jrd.2018-073] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
All-trans retinoic acid (RA) is a metabolite of vitamin A and has pleiotropic actions on many different biological processes, including cell growth and differentiation, and is involved in different aspects of fertility and developmental biology. In the current study, we investigated the effects of RA on camel (Camelus dromedarius) cumulus-oocyte complex in vitro maturation (IVM). IVM medium was supplemented with 0, 10, 20, and 40 µM RA. Application of 20 µM RA significantly reduced the proportion of degenerated oocytes and significantly improved oocyte meiosis and first polar body extrusion compared to the control and other experimental groups. Retinoic acid significantly reduced the mRNA transcript levels of apoptosis-related genes, including BAX and P53, and reduced the BAX/BCL2 ratio. In addition, RA significantly reduced the expression of the Transforming growth factor beta (TGFβ) pathway-related transcripts associated with the actin cytoskeleton, ACTA2 and TAGLN; however, RA increased TGFβ expression in cumulus cells. The small molecule SB-431542 inhibits the TGFβ pathway by inhibiting the activity of activin receptor-like kinases (ALK-4, ALK-5, and ALK-7); however, combined supplementation with RA during IVM compensated for the inhibitory effect of SB-431542 on cumulus expansion, oocyte meiosis I, and first polar body extrusion in activated oocytes. The current study shows the beneficial effects of RA on camel oocyte IVM and provides a model to study the multifunctional mechanisms involved in cumulus expansion and oocyte meiosis, particularly those involved in the TGFβ pathway.
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Affiliation(s)
- Islam M Saadeldin
- Department of Animal Production, College of Food and Agricultural Sciences, King Saud University, 11451 Riyadh, Kingdom of Saudi Arabia.,Department of Physiology, Faculty of Veterinary Medicine, Zagazig University, 44519 Zagazig, Egypt
| | - Ayman Abdel-Aziz Swelum
- Department of Animal Production, College of Food and Agricultural Sciences, King Saud University, 11451 Riyadh, Kingdom of Saudi Arabia.,Department of Theriogenology, Faculty of Veterinary Medicine, Zagazig University, 44519 Zagazig, Egypt
| | - Mona Elsafadi
- Stem Cell Unit, Department of Anatomy, College of Medicine, King Saud University, Riyadh, Kingdom of Saudi Arabia
| | - Amer Mahmood
- Stem Cell Unit, Department of Anatomy, College of Medicine, King Saud University, Riyadh, Kingdom of Saudi Arabia
| | - Syed Hilal Yaqoob
- Department of Animal Production, College of Food and Agricultural Sciences, King Saud University, 11451 Riyadh, Kingdom of Saudi Arabia
| | - Musaad Alfayez
- Stem Cell Unit, Department of Anatomy, College of Medicine, King Saud University, Riyadh, Kingdom of Saudi Arabia.,Saudi Society for Camel Studies, Saudi Arabia
| | - Abdullah N Alowaimer
- Department of Animal Production, College of Food and Agricultural Sciences, King Saud University, 11451 Riyadh, Kingdom of Saudi Arabia
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19
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Tagaya H, Ishikawa K, Hosokawa Y, Kobayashi S, Ueoka Y, Shimada M, Ohashi Y, Mikami H, Yamamoto M, Ihara T, Kumazawa K, Sugihara K, Goshima N, Watanabe S, Semba K. A method of producing genetically manipulated mouse mammary gland. Breast Cancer Res 2019; 21:1. [PMID: 30611295 PMCID: PMC6321679 DOI: 10.1186/s13058-018-1086-8] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2018] [Accepted: 12/05/2018] [Indexed: 01/23/2023] Open
Abstract
Background To obtain a deep understanding of the mechanism by which breast cancer develops, the genes involved in tumorigenesis should be analyzed in vivo. Mouse mammary gland can regenerate completely from a mammary stem cell (MaSC), which enables us to analyze the effect of gene expression and repression on tumorigenesis in mammary gland regenerated from genetically manipulated MaSCs. Although lentiviral and retroviral systems have usually been applied for gene transduction into MaSCs, they are associated with difficulty in introducing long, repeated, or transcriptional termination sequences. There is thus a need for an easier and quicker gene delivery system. Methods We devised a new system for gene delivery into MaSCs using the piggyBac transposon vectors and electroporation. Compared with viral systems, this system enables easier and quicker transfection of even long, repeated, or transcriptional termination DNA sequences. We designed gene expression vectors of the transposon system, equipped with a luciferase (Luc) expression cassette for monitoring gene transduction into regenerative mammary gland in mice by in-vivo imaging. A doxycycline (Dox)-inducible system was also integrated for expressing the target gene after mammary regeneration to mimic the actual mechanism of tumorigenesis. Results With this new gene delivery system, genetically manipulated mammary glands were successfully reconstituted even though the vector size was > 200 kb and even in the presence of DNA elements such as promoters and transcription termination sequences, which are major obstacles to viral vector packaging. They differentiated correctly into both basal and luminal cells, and showed normal morphological change and milk production after pregnancy, as well as self-renewal capacity. Using the Tet-On system, gene expression can be controlled by the addition of Dox after mammary reconstitution. In a case study using polyoma-virus middle T antigen (PyMT), oncogene-induced tumorigenesis was achieved. The histological appearance of the tumor was highly similar to that of the mouse mammary tumor virus-PyMT transgenic mouse model. Conclusions With this system, gene transduction in the mammary gland can be easily and quickly achieved, and gene expression can be controlled by Dox administration. This system for genetic manipulation could be useful for analyzing genes involved in breast cancer. Electronic supplementary material The online version of this article (10.1186/s13058-018-1086-8) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Hiroaki Tagaya
- Department of Life Science and Medical Bioscience, School of Advanced Science and Engineering, Waseda University, 2-2 Wakamatsu-cho, Shinjuku-ku, Tokyo, 162-8480, Japan.,Computational Bio Big-Data Open Innovation Laboratory (CBBD-OIL), National Institute of Advanced Industrial Science and Technology (AIST), 3-4-1 Okubo, Shinjuku-ku, Tokyo, 169-8555, Japan
| | - Kosuke Ishikawa
- Japan Biological Informatics Consortium (JBiC), 2-45 Aomi, Koto-ku, Tokyo, 135-8073, Japan.
| | - Yoshito Hosokawa
- Department of Life Science and Medical Bioscience, School of Advanced Science and Engineering, Waseda University, 2-2 Wakamatsu-cho, Shinjuku-ku, Tokyo, 162-8480, Japan
| | - Shun Kobayashi
- Department of Life Science and Medical Bioscience, School of Advanced Science and Engineering, Waseda University, 2-2 Wakamatsu-cho, Shinjuku-ku, Tokyo, 162-8480, Japan
| | - Yukino Ueoka
- Department of Life Science and Medical Bioscience, School of Advanced Science and Engineering, Waseda University, 2-2 Wakamatsu-cho, Shinjuku-ku, Tokyo, 162-8480, Japan
| | - Mayuna Shimada
- Department of Life Science and Medical Bioscience, School of Advanced Science and Engineering, Waseda University, 2-2 Wakamatsu-cho, Shinjuku-ku, Tokyo, 162-8480, Japan
| | - Yasuko Ohashi
- Department of Life Science and Medical Bioscience, School of Advanced Science and Engineering, Waseda University, 2-2 Wakamatsu-cho, Shinjuku-ku, Tokyo, 162-8480, Japan
| | - Hirofumi Mikami
- Department of Life Science and Medical Bioscience, School of Advanced Science and Engineering, Waseda University, 2-2 Wakamatsu-cho, Shinjuku-ku, Tokyo, 162-8480, Japan
| | - Mizuki Yamamoto
- Division of Cellular and Molecular Biology, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - Tatsuya Ihara
- Department of Life Science and Medical Bioscience, School of Advanced Science and Engineering, Waseda University, 2-2 Wakamatsu-cho, Shinjuku-ku, Tokyo, 162-8480, Japan
| | - Kentaro Kumazawa
- Department of Life Science and Medical Bioscience, School of Advanced Science and Engineering, Waseda University, 2-2 Wakamatsu-cho, Shinjuku-ku, Tokyo, 162-8480, Japan
| | - Kosuke Sugihara
- Department of Life Science and Medical Bioscience, School of Advanced Science and Engineering, Waseda University, 2-2 Wakamatsu-cho, Shinjuku-ku, Tokyo, 162-8480, Japan
| | - Naoki Goshima
- National Institute of Advanced Industrial Science and Technology (AIST), Koto-ku, Tokyo, 135-0064, Japan.,Translational Research Center, Fukushima Medical University, Hikarigaoka, Fukushima, 960-1295, Japan
| | - Shinya Watanabe
- Translational Research Center, Fukushima Medical University, Hikarigaoka, Fukushima, 960-1295, Japan
| | - Kentaro Semba
- Department of Life Science and Medical Bioscience, School of Advanced Science and Engineering, Waseda University, 2-2 Wakamatsu-cho, Shinjuku-ku, Tokyo, 162-8480, Japan. .,Translational Research Center, Fukushima Medical University, Hikarigaoka, Fukushima, 960-1295, Japan.
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20
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Gong L, Jiang L, Qin Y, Jiang X, Song K, Yu X. Protective effect of retinoic acid receptor α on hypoxia-induced epithelial to mesenchymal transition of renal tubular epithelial cells associated with TGF-β/MMP-9 pathway. Cell Biol Int 2018; 42:1050-1059. [PMID: 29719094 DOI: 10.1002/cbin.10982] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2017] [Accepted: 04/28/2018] [Indexed: 12/12/2022]
Abstract
Retinoic acid receptor α (RARα), a member of family of the nuclear retinoic acid receptors (RARs), plays an essential role in various chronic kidney diseases (CKD). Renal tubular epithelial to mesenchymal transition (EMT) is a common mechanism of progression of renal interstitial fibrosis (RIF). Hypoxia has been extensively considered as one of major inducers of renal tubular EMT. However, the effects of RARα on hypoxia-induced EMT have not yet been described so far. The aim of the present study was to explore the roles and potential mechanisms of RARα in hypoxia-induced EMT of renal tubular epithelial cells (RTECs). Our results showed that expression of RARα in RTECs subjected to hypoxia significantly was reduced, accompanied by decreased expression level of the epithelial marker E-cadherin, and increased expression levels of the mesenchymal markers α-smooth muscle actin (α-SMA) and vimentin, in accord with EMT. Meanwhile, hypoxia could cause RTECs to obviously express TGF-β and matrix metalloproteinase-9 (MMP-9). Furthermore, using lentivirus-based delivery vectors to overexpress RARα in RTECs, we demonstrated that RARα alleviated hypoxia-induced EMT of RTECs and downregulated the expression levels of TGF-β and MMP-9. In a word, RARα protects RTECs against EMT induced by hypoxia associated with TGF-β/MMP-9 pathway.
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Affiliation(s)
- Ling Gong
- Department of Pediatrics, The First Affiliated Hospital of Guangxi Medical University, Nanning, 530021, China
| | - Ling Jiang
- Department of Pediatrics, The First Affiliated Hospital of Guangxi Medical University, Nanning, 530021, China
| | - Yuanhan Qin
- Department of Pediatrics, The First Affiliated Hospital of Guangxi Medical University, Nanning, 530021, China
| | - Xingbo Jiang
- Department of Pediatrics, The First Affiliated Hospital of Guangxi Medical University, Nanning, 530021, China
| | - Kunling Song
- Department of Pediatrics, The First Affiliated Hospital of Guangxi Medical University, Nanning, 530021, China
| | - Xueyun Yu
- Department of Pediatrics, The First Affiliated Hospital of Guangxi Medical University, Nanning, 530021, China
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21
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Ishikawa K, Kobayashi Y, Wakabayashi Y, Watanabe S, Semba K. A highly sensitive trap vector system for isolating reporter cells and identification of responsive genes. Biol Methods Protoc 2018; 3:bpy003. [PMID: 32161797 PMCID: PMC6994077 DOI: 10.1093/biomethods/bpy003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2018] [Revised: 03/22/2018] [Accepted: 04/18/2018] [Indexed: 01/03/2023] Open
Abstract
We devised a versatile vector system for efficient isolation of reporter cells responding to a certain condition of interest. This system combines nontoxic GAL4-UAS and piggyBac transposon systems, allowing application to mammalian cells and improved expression of a fluorescent reporter protein for cell sorting. Case studies under conditions of c-MYC gene induction or endoplasmic reticulum (ER) stress with thapsigargin on mouse or human cell lines confirmed easy and efficient isolation of responsive reporter cells. Sequence analyses of the integrated loci of the thapsigargin-responsive clones identified responsive genes including BiP and OSBPL9. OSBPL9 is a novel ER stress-responsive gene and we confirmed that endogenous mRNA expression of OSBPL9 is upregulated by thapsigargin, and is repressed by IRE1α inhibitors, 4μ8C and toyocamycin, but not significantly by a PERK inhibitor, GSK2656157. These results demonstrate that this approach can be used to discover novel genes regulated by any stimuli without the need for microarray analysis, and that it can concomitantly produce reporter cells without identification of stimuli-responsive promoter/enhancer elements. Therefore, this system has a variety of benefits for basic and clinical research.
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Affiliation(s)
- Kosuke Ishikawa
- Japan Biological Informatics Consortium (JBiC), 2-45 Aomi, Koto-ku, Tokyo 135-8073, Japan
| | - Yuta Kobayashi
- Department of Life Science and Medical Bioscience, School of Advanced Science and Engineering, Waseda University, 2-2 Wakamatsu-cho, Shinjuku-ku, Tokyo 162-8480, Japan
| | - Yutaro Wakabayashi
- Department of Life Science and Medical Bioscience, School of Advanced Science and Engineering, Waseda University, 2-2 Wakamatsu-cho, Shinjuku-ku, Tokyo 162-8480, Japan
| | - Shinya Watanabe
- Translational Research Center, Fukushima Medical University, 1 Hikarigaoka, Fukushima 960-1295, Japan
| | - Kentaro Semba
- Department of Life Science and Medical Bioscience, School of Advanced Science and Engineering, Waseda University, 2-2 Wakamatsu-cho, Shinjuku-ku, Tokyo 162-8480, Japan.,Translational Research Center, Fukushima Medical University, 1 Hikarigaoka, Fukushima 960-1295, Japan
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22
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Ren HY, Liu F, Huang GL, Liu Y, Shen JX, Zhou P, Liu WM, Shen DY. Positive feedback loop of IL-1β/Akt/RARα/Akt signaling mediates oncogenic property of RARα in gastric carcinoma. Oncotarget 2018; 8:6718-6729. [PMID: 28035062 PMCID: PMC5351665 DOI: 10.18632/oncotarget.14267] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2016] [Accepted: 12/01/2016] [Indexed: 01/29/2023] Open
Abstract
Abnormal expression and function of retinoic acid receptor α (RARα) have been reported to be associated with various cancers including acute promyelocytic leukemia and hepatocellular carcinoma. However, the role and the mechanism of RARα in gastric carcinoma (GC) were unknown. Here, the expression of RARα was frequently elevated in human GC tissues and cell lines, and its overexpression was closely correlated with tumor size, lymph node metastasis and clinical stages in GC patients. Moreover, RARα overexpression was related with pathological differentiation. Functionally, RARα knockdown inhibited the proliferation and metastasis of GC cells, as well as enhanced drug susceptibility both in vitro and in vivo. Additionally, RARα knockdown suppressed GC progression through regulating the expression of cell proliferation, cell cycle, invasion and drug resistance associated proteins, such as PCNA, CyclinB1, CyclinD2, CyclinE, p21, MMP9 and MDR1. Mechanistically, the above oncogenic properties of RARα in GC were closely associated with Akt signaling activation. Moreover, overexpression of RARα was induced by IL-1β/Akt signaling activation, which suggested a positive feedback loop of IL-1β/Akt/RARα/Akt signaling in GC. Taken together, we demonstrated that RARα was frequently elevated in GC and exerted oncogenic properties. It might be a potential molecular target for GC treatment.
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Affiliation(s)
- Hong-Yue Ren
- Department of Pathology, The Affiliated Southeast Hospital of Xiamen University, Zhangzhou 363000, Fujian Province, China
| | - Fan Liu
- Department of Medical College, Xiamen University, Xiamen 361005, Fujian Province, China
| | - Gui-Li Huang
- State Key Laboratory of Cellular Stress Biology, Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, Department of Life Sciences, Xiamen University, Xiamen 361005, Fujian Province, China
| | - Yu Liu
- Department of Biobank, The First Affiliated Hospital of Xiamen University, Xiamen 361003, Fujian Province, China
| | - Jin-Xing Shen
- Department of Biobank, The First Affiliated Hospital of Xiamen University, Xiamen 361003, Fujian Province, China
| | - Pan Zhou
- State Key Laboratory of Cellular Stress Biology, Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, Department of Life Sciences, Xiamen University, Xiamen 361005, Fujian Province, China
| | - Wen-Ming Liu
- Department of Gastroenterology, Zhongshan Hospital, Gastroenterology Institute of Xiamen University, Gastroenterology Center of Xiamen, Xiamen 361003, Fujian Province, China
| | - Dong-Yan Shen
- Department of Biobank, The First Affiliated Hospital of Xiamen University, Xiamen 361003, Fujian Province, China
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23
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Ihara T, Hosokawa Y, Kumazawa K, Ishikawa K, Fujimoto J, Yamamoto M, Muramkami T, Goshima N, Ito E, Watanabe S, Semba K. An in vivo screening system to identify tumorigenic genes. Oncogene 2016; 36:2023-2029. [PMID: 27694896 DOI: 10.1038/onc.2016.351] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2016] [Revised: 08/11/2016] [Accepted: 08/15/2016] [Indexed: 12/26/2022]
Abstract
Screening for oncogenes has mostly been performed by in vitro transformation assays. However, some oncogenes might not exhibit their transforming activities in vitro unless putative essential factors from in vivo microenvironments are adequately supplied. Here, we have developed an in vivo screening system that evaluates the tumorigenicity of target genes. This system uses a retroviral high-efficiency gene transfer technique, a large collection of human cDNA clones corresponding to ~70% of human genes and a luciferase-expressing immortalized mouse mammary epithelial cell line (NMuMG-luc). From 845 genes that were highly expressed in human breast cancer cell lines, we focused on 205 genes encoding membrane proteins and/or kinases as that had the greater possibility of being oncogenes or drug targets. The 205 genes were divided into five subgroups, each containing 34-43 genes, and then introduced them into NMuMG-luc cells. These cells were subcutaneously injected into nude mice and monitored for tumor development by in vivo imaging. Tumors were observed in three subgroups. Using DNA microarray analyses and individual tumorigenic assays, we found that three genes, ADORA2B, PRKACB and LPAR3, were tumorigenic. ADORA2B and LPAR3 encode G-protein-coupled receptors and PRKACB encodes a protein kinase A catalytic subunit. Cells overexpressing ADORA2B, LPAR3 or PRKACB did not show transforming phenotypes in vitro, suggesting that transformation by these genes requires in vivo microenvironments. In addition, several clinical data sets, including one for breast cancer, showed that the expression of these genes correlated with lower overall survival rate.
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Affiliation(s)
- T Ihara
- Department of Life Science and Medical Bioscience, School of Advanced Science and Engineering, Waseda University, Tokyo, Japan
| | - Y Hosokawa
- Department of Life Science and Medical Bioscience, School of Advanced Science and Engineering, Waseda University, Tokyo, Japan
| | - K Kumazawa
- Department of Life Science and Medical Bioscience, School of Advanced Science and Engineering, Waseda University, Tokyo, Japan
| | - K Ishikawa
- Japan Biological Informatics Consortium (JBiC), Tokyo, Japan
| | - J Fujimoto
- Japan Biological Informatics Consortium (JBiC), Tokyo, Japan
| | - M Yamamoto
- Department of Life Science and Medical Bioscience, School of Advanced Science and Engineering, Waseda University, Tokyo, Japan
| | - T Muramkami
- Laboratory of Tumor Biology, Faculty of Pharmacy, Takasaki University of Health and Welfare, Takasaki, Japan
| | - N Goshima
- Quantitative Proteomics Team, Molecular Profiling Research Center for Drug Discovery (molprof), National Institute of Advanced Industrial Science and Technology (AIST), Tokyo, Japan.,Division of Transcriptome Analysis, Fukushima, Japan
| | - E Ito
- Division of Gene Expression Analysis, Fukushima, Japan
| | - S Watanabe
- Division of Gene Expression Analysis, Fukushima, Japan
| | - K Semba
- Department of Life Science and Medical Bioscience, School of Advanced Science and Engineering, Waseda University, Tokyo, Japan.,Division of gene function analysis, Translational Research Center, Fukushima Medical University, Fukushima, Japan
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24
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Dikshit A, Gao C, Small C, Hales K, Hales DB. Flaxseed and its components differentially affect estrogen targets in pre-neoplastic hen ovaries. J Steroid Biochem Mol Biol 2016; 159:73-85. [PMID: 26925929 PMCID: PMC4821676 DOI: 10.1016/j.jsbmb.2016.02.028] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/25/2015] [Revised: 02/12/2016] [Accepted: 02/24/2016] [Indexed: 02/07/2023]
Abstract
Flaxseed has been studied for decades for its health benefits that include anti-cancer, cardio-protective, anti-diabetic, anti-inflammatory properties. The biologically active components that mediate these effects are the omega-3 fatty acids and the lignan, secoisolariciresinol diglucoside. We have previously shown that whole flaxseed supplemented diet decreases the severity and incidence of ovarian cancer while a 15% dose of flaxseed is most protective against inflammation and estrogen-induced chemical and genotoxicity. The objective of this study was to dissect the independent effects of the two flaxseed components on estrogen signaling and metabolism. Two and half year old hens were fed either a control diet, 15% whole flaxseed diet, defatted flax meal diet or 5% flax oil diet for 3 months after which the animals were sacrificed and blood and tissues were harvested. Whole flaxseed diet caused a decrease in expression of ERα. ERα target gene expression was assessed using RT(2) profiler PCR array. Some targets involved in the IGF/insulin signaling pathway (IRS1, IGFBP4, IGFBP5) were downregulated by flaxseed and its components. Flaxseed diet also downregulated AKT expression. A number of targets related to NF-kB signaling were altered by flaxseed diet including a series of targets implicated in cancer. Whole flaxseed diet also affected E2 metabolism by increasing CYP1A1 expression with a corresponding increase in the onco-protective E2 metabolite, 2-methoxyestradiol. The weak anti-estrogens, enterolactone, enterodiol and 2-methoxyestradiol, might be working synergistically to generate a protective effect on the ovaries from hens on whole flaxseed diet by altering the estrogen signaling and metabolism.
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Affiliation(s)
- Anushka Dikshit
- Department of Physiology, Southern Illinois University School of Medicine, 1125 Lincoln Drive, Life Science II, Room 245B, Carbondale, Illinois 62901, USA
| | - Chunqi Gao
- Department of Physiology, Southern Illinois University School of Medicine, 1125 Lincoln Drive, Life Science II, Room 245B, Carbondale, Illinois 62901, USA
| | - Carrie Small
- Department of Physiology, Southern Illinois University School of Medicine, 1125 Lincoln Drive, Life Science II, Room 245B, Carbondale, Illinois 62901, USA
| | - Karen Hales
- Department of Obstetrics and Gynecology, Southern Illinois University School of Medicine, Carbondale, Illinois, USA
| | - Dale Buchanan Hales
- Department of Physiology, Southern Illinois University School of Medicine, 1125 Lincoln Drive, Life Science II, Room 245B, Carbondale, Illinois 62901, USA.
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25
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Matsui A, Fujimoto J, Ishikawa K, Ito E, Goshima N, Watanabe S, Semba K. Hepatocyte nuclear factor 1 beta induces transformation and epithelial-to-mesenchymal transition. FEBS Lett 2016; 590:1211-21. [PMID: 27001343 DOI: 10.1002/1873-3468.12147] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2015] [Revised: 03/11/2016] [Accepted: 03/16/2016] [Indexed: 12/31/2022]
Abstract
Gene amplification can be a cause of cancer, and driver oncogenes have been often identified in amplified regions. However, comprehensive analysis of other genes coamplified with an oncogene is rarely performed. We focused on the 17q12-21 amplicon, which contains ERBB2. We established a screening system for oncogenic activity with the NMuMG epithelial cell line. We identified a homeobox gene, HNF1B, as a novel cooperative transforming gene. HNF1B induced cancerous phenotypes, which were enhanced by the coexpression of ERBB2, and induced epithelial-to-mesenchymal transition and invasive phenotypes. These results suggest that HNF1B is a novel oncogene that can work cooperatively with ERBB2.
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Affiliation(s)
- Atsuka Matsui
- Department of Life Science and Medical Bioscience, School of Advanced Science and Engineering, Waseda University, Tokyo, Japan
| | - Jiro Fujimoto
- Japan Biological Informatics Consortium (JBiC), Tokyo, Japan.,Research Institute for Science and Engineering, Waseda University, Tokyo, Japan
| | - Kosuke Ishikawa
- Japan Biological Informatics Consortium (JBiC), Tokyo, Japan.,Research Institute for Science and Engineering, Waseda University, Tokyo, Japan
| | - Emi Ito
- Division of Gene Expression Analysis, Translational Research Center, Fukushima Medical University, Japan
| | - Naoki Goshima
- Division of Transcriptome Analysis, Translational Research Center, Fukushima Medical University, Japan.,Quantitative Proteomics Team, Molecular Profiling Research Center for Drug Discovery (molprof), National Institute of Advanced Industrial Science and Technology (AIST), Tokyo, Japan
| | - Shinya Watanabe
- Division of Gene Expression Analysis, Translational Research Center, Fukushima Medical University, Japan
| | - Kentaro Semba
- Department of Life Science and Medical Bioscience, School of Advanced Science and Engineering, Waseda University, Tokyo, Japan.,Division of Gene Function Analysis, Translational Research Center, Fukushima Medical University, Japan
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26
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Abstract
Nuclear receptors (NR) act as an integrated conduit for environmental and hormonal signals to govern genomic responses, which relate to cell fate decisions. We review how their integrated actions with each other, shared co-factors and other transcription factors are disrupted in cancer. Steroid hormone nuclear receptors are oncogenic drivers in breast and prostate cancer and blockade of signaling is a major therapeutic goal. By contrast to blockade of receptors, in other cancers enhanced receptor function is attractive, as illustrated initially with targeting of retinoic acid receptors in leukemia. In the post-genomic era large consortia, such as The Cancer Genome Atlas, have developed a remarkable volume of genomic data with which to examine multiple aspects of nuclear receptor status in a pan-cancer manner. Therefore to extend the review of NR function we have also undertaken bioinformatics analyses of NR expression in over 3000 tumors, spread across six different tumor types (bladder, breast, colon, head and neck, liver and prostate). Specifically, to ask how the NR expression was distorted (altered expression, mutation and CNV) we have applied bootstrapping approaches to simulate data for comparison, and also compared these NR findings to 12 other transcription factor families. Nuclear receptors were uniquely and uniformly downregulated across all six tumor types, more than predicted by chance. These approaches also revealed that each tumor type had a specific NR expression profile but these were most similar between breast and prostate cancer. Some NRs were down-regulated in at least five tumor types (e.g. NR3C2/MR and NR5A2/LRH-1)) whereas others were uniquely down-regulated in one tumor (e.g. NR1B3/RARG). The downregulation was not driven by copy number variation or mutation and epigenetic mechanisms maybe responsible for the altered nuclear receptor expression.
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Affiliation(s)
- Mark D Long
- Department of Pharmacology and Therapeutics, Roswell Park Cancer Institute, Elm & Carlton Streets, Buffalo, NY 14263, USA
| | - Moray J Campbell
- Department of Pharmacology and Therapeutics, Roswell Park Cancer Institute, Elm & Carlton Streets, Buffalo, NY 14263, USA
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27
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Mining for Candidate Genes Related to Pancreatic Cancer Using Protein-Protein Interactions and a Shortest Path Approach. BIOMED RESEARCH INTERNATIONAL 2015; 2015:623121. [PMID: 26613085 PMCID: PMC4647023 DOI: 10.1155/2015/623121] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/06/2015] [Accepted: 10/15/2015] [Indexed: 12/13/2022]
Abstract
Pancreatic cancer (PC) is a highly malignant tumor derived from pancreas tissue and is one of the leading causes of death from cancer. Its molecular mechanism has been partially revealed by validating its oncogenes and tumor suppressor genes; however, the available data remain insufficient for medical workers to design effective treatments. Large-scale identification of PC-related genes can promote studies on PC. In this study, we propose a computational method for mining new candidate PC-related genes. A large network was constructed using protein-protein interaction information, and a shortest path approach was applied to mine new candidate genes based on validated PC-related genes. In addition, a permutation test was adopted to further select key candidate genes. Finally, for all discovered candidate genes, the likelihood that the genes are novel PC-related genes is discussed based on their currently known functions.
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28
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The cell competition-based high-throughput screening identifies small compounds that promote the elimination of RasV12-transformed cells from epithelia. Sci Rep 2015; 5:15336. [PMID: 26480891 PMCID: PMC4612300 DOI: 10.1038/srep15336] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2015] [Accepted: 09/23/2015] [Indexed: 12/31/2022] Open
Abstract
Recent studies have revealed that cell competition can occur between normal and transformed epithelial cells; normal epithelial cells recognize the presence of the neighboring transformed cells and actively eliminate them from epithelial tissues. Here, we have established a brand-new high-throughput screening platform that targets cell competition. By using this platform, we have identified Rebeccamycin as a hit compound that specifically promotes elimination of RasV12-transformed cells from the epithelium, though after longer treatment it shows substantial cytotoxic effect against normal epithelial cells. Among several Rebeccamycin-derivative compounds, we have found that VC1-8 has least cytotoxicity against normal cells but shows the comparable effect on the elimination of transformed cells. This cell competition-promoting activity of VC1-8 is observed both in vitro and ex vivo. These data demonstrate that the cell competition-based screening is a promising tool for the establishment of a novel type of cancer preventive medicine.
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29
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Zanetti A, Affatato R, Centritto F, Fratelli M, Kurosaki M, Barzago MM, Bolis M, Terao M, Garattini E, Paroni G. All-trans-retinoic Acid Modulates the Plasticity and Inhibits the Motility of Breast Cancer Cells: ROLE OF NOTCH1 AND TRANSFORMING GROWTH FACTOR (TGFβ). J Biol Chem 2015; 290:17690-17709. [PMID: 26018078 DOI: 10.1074/jbc.m115.638510] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2015] [Indexed: 01/06/2023] Open
Abstract
All-trans-retinoic acid (ATRA) is a natural compound proposed for the treatment/chemoprevention of breast cancer. Increasing evidence indicates that aberrant regulation of epithelial-to-mesenchymal transition (EMT) is a determinant of the cancer cell invasive and metastatic behavior. The effects of ATRA on EMT are largely unknown. In HER2-positive SKBR3 and UACC812 cells, showing co-amplification of the ERBB2 and RARA genes, ATRA activates a RARα-dependent epithelial differentiation program. In SKBR3 cells, this causes the formation/reorganization of adherens and tight junctions. Epithelial differentiation and augmented cell-cell contacts underlie the anti-migratory action exerted by the retinoid in cells exposed to the EMT-inducing factors EGF and heregulin-β1. Down-regulation of NOTCH1, an emerging EMT modulator, is involved in the inhibition of motility by ATRA. Indeed, the retinoid blocks NOTCH1 up-regulation by EGF and/or heregulin-β1. Pharmacological inhibition of γ-secretase and NOTCH1 processing also abrogates SKBR3 cell migration. Stimulation of TGFβ contributes to the anti-migratory effect of ATRA. The retinoid switches TGFβ from an EMT-inducing and pro-migratory determinant to an anti-migratory mediator. Inhibition of the NOTCH1 pathway not only plays a role in the anti-migratory action of ATRA; it is relevant also for the anti-proliferative activity of the retinoid in HCC1599 breast cancer cells, which are addicted to NOTCH1 for growth/viability. This effect is enhanced by the combination of ATRA and the γ-secretase inhibitor N-(N-(3,5-difluorophenacetyl)-l-alanyl)-S-phenylglycine t-butyl ester, supporting the concept that the two compounds act at the transcriptional and post-translational levels along the NOTCH1 pathway.
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Affiliation(s)
- Adriana Zanetti
- Laboratory of Molecular Biology, Istituto di Ricerche Farmacologiche Mario Negri, Via La Masa 19, 20156 Milano, Italy
| | - Roberta Affatato
- Laboratory of Molecular Biology, Istituto di Ricerche Farmacologiche Mario Negri, Via La Masa 19, 20156 Milano, Italy
| | - Floriana Centritto
- Laboratory of Molecular Biology, Istituto di Ricerche Farmacologiche Mario Negri, Via La Masa 19, 20156 Milano, Italy
| | - Maddalena Fratelli
- Laboratory of Molecular Biology, Istituto di Ricerche Farmacologiche Mario Negri, Via La Masa 19, 20156 Milano, Italy
| | - Mami Kurosaki
- Laboratory of Molecular Biology, Istituto di Ricerche Farmacologiche Mario Negri, Via La Masa 19, 20156 Milano, Italy
| | - Maria Monica Barzago
- Laboratory of Molecular Biology, Istituto di Ricerche Farmacologiche Mario Negri, Via La Masa 19, 20156 Milano, Italy
| | - Marco Bolis
- Laboratory of Molecular Biology, Istituto di Ricerche Farmacologiche Mario Negri, Via La Masa 19, 20156 Milano, Italy
| | - Mineko Terao
- Laboratory of Molecular Biology, Istituto di Ricerche Farmacologiche Mario Negri, Via La Masa 19, 20156 Milano, Italy
| | - Enrico Garattini
- Laboratory of Molecular Biology, Istituto di Ricerche Farmacologiche Mario Negri, Via La Masa 19, 20156 Milano, Italy
| | - Gabriela Paroni
- Laboratory of Molecular Biology, Istituto di Ricerche Farmacologiche Mario Negri, Via La Masa 19, 20156 Milano, Italy.
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Doi A, Ishikawa K, Shibata N, Ito E, Fujimoto J, Yamamoto M, Shiga H, Mochizuki H, Kawamura Y, Goshima N, Semba K, Watanabe S. Enhanced expression of retinoic acid receptor alpha (RARA) induces epithelial-to-mesenchymal transition and disruption of mammary acinar structures. Mol Oncol 2014; 9:355-64. [PMID: 25300573 DOI: 10.1016/j.molonc.2014.09.005] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2014] [Revised: 09/15/2014] [Accepted: 09/15/2014] [Indexed: 01/01/2023] Open
Abstract
The early steps of mammary tumorigenesis include loss of epithelial cell polarity, escape from anoikis, and acquisition of proliferative capacity. The genes responsible for these processes are predicted to be early diagnostic markers or new therapeutic targets. Here we tested 51 genes coamplified with ERBB2 in the 17q12-21 amplicon for these tumorigenic activities using an MCF10A 3D culture-based screening system. We found that overexpression of retinoic acid receptor α (RARA) disrupted normal acinar structure and induced epithelial-to-mesenchymal transition (EMT). The mRNA levels of known EMT-inducing factors, including SLUG, FOXC2, ZEB1, and ZEB2, were significantly increased upon RARA overexpression. Knockdown of ZEB1 suppressed the RARA-mediated EMT phenotype. These results suggest that overexpression of RARA enhances malignant transformation during mammary tumorigenesis.
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Affiliation(s)
- Ayano Doi
- Department of Life Science and Medical Bioscience, School of Advanced Science and Engineering, Waseda University, 2-2 Wakamatsu-cho, Shinjuku-ku, Tokyo 162-8480, Japan.
| | - Kosuke Ishikawa
- Department of Life Science and Medical Bioscience, School of Advanced Science and Engineering, Waseda University, 2-2 Wakamatsu-cho, Shinjuku-ku, Tokyo 162-8480, Japan; Japan Biological Informatics Consortium (JBiC), 2-45 Aomi, Koto-ku, Tokyo 135-8073, Japan.
| | - Nao Shibata
- Department of Life Science and Medical Bioscience, School of Advanced Science and Engineering, Waseda University, 2-2 Wakamatsu-cho, Shinjuku-ku, Tokyo 162-8480, Japan
| | - Emi Ito
- Division of Gene Expression Analysis, Translational Research Center (Tokyo Branch), Fukushima Medical University, Shibuya-ku, Tokyo 151-0051, Japan
| | - Jiro Fujimoto
- Department of Life Science and Medical Bioscience, School of Advanced Science and Engineering, Waseda University, 2-2 Wakamatsu-cho, Shinjuku-ku, Tokyo 162-8480, Japan; Japan Biological Informatics Consortium (JBiC), 2-45 Aomi, Koto-ku, Tokyo 135-8073, Japan
| | - Mizuki Yamamoto
- Department of Life Science and Medical Bioscience, School of Advanced Science and Engineering, Waseda University, 2-2 Wakamatsu-cho, Shinjuku-ku, Tokyo 162-8480, Japan
| | - Hatsuki Shiga
- Japan Biological Informatics Consortium (JBiC), 2-45 Aomi, Koto-ku, Tokyo 135-8073, Japan
| | - Hiromi Mochizuki
- Japan Biological Informatics Consortium (JBiC), 2-45 Aomi, Koto-ku, Tokyo 135-8073, Japan
| | - Yoshifumi Kawamura
- Japan Biological Informatics Consortium (JBiC), 2-45 Aomi, Koto-ku, Tokyo 135-8073, Japan
| | - Naoki Goshima
- Quantitative Proteomics Team, Molecular Profiling Research Center for Drug Discovery (molprof), National Institute of Advanced Industrial Science and Technology (AIST), 2-4-7 Aomi, Koto-ku, Tokyo 135-0064, Japan
| | - Kentaro Semba
- Department of Life Science and Medical Bioscience, School of Advanced Science and Engineering, Waseda University, 2-2 Wakamatsu-cho, Shinjuku-ku, Tokyo 162-8480, Japan; Division of Gene Function Analysis, Translational Research Center, Fukushima Medical University, 1 Hikarigaoka, Fukushima-city, Fukushima 960-1295, Japan.
| | - Shinya Watanabe
- Division of Gene Expression Analysis, Translational Research Center (Tokyo Branch), Fukushima Medical University, Shibuya-ku, Tokyo 151-0051, Japan
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