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Ruiz BI, Lowman XH, Yang Y, Fan Q, Wang T, Wu H, Hanse EA, Kong M. Alpha-Ketoglutarate Regulates Tnfrsf12a/Fn14 Expression via Histone Modification and Prevents Cancer-Induced Cachexia. Genes (Basel) 2023; 14:1818. [PMID: 37761958 PMCID: PMC10531467 DOI: 10.3390/genes14091818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Revised: 09/12/2023] [Accepted: 09/15/2023] [Indexed: 09/29/2023] Open
Abstract
Previous studies have shown that inhibition of TNF family member FN14 (gene: TNFRSF12A) in colon tumors decreases inflammatory cytokine expression and mitigates cancer-induced cachexia. However, the molecular mechanisms underlying the regulation of FN14 expression remain unclear. Tumor microenvironments are often devoid of nutrients and oxygen, yet how the cachexic response relates to the tumor microenvironment and, importantly, nutrient stress is unknown. Here, we looked at the connections between metabolic stress and FN14 expression. We found that TNFRSF12A expression was transcriptionally induced during glutamine deprivation in cancer cell lines. We also show that the downstream glutaminolysis metabolite, alpha-ketoglutarate (aKG), is sufficient to rescue glutamine-deprivation-promoted TNFRSF12A induction. As aKG is a co-factor for histone de-methylase, we looked at histone methylation and found that histone H3K4me3 at the Tnfrsf12a promoter is increased under glutamine-deprived conditions and rescued via DM-aKG supplementation. Finally, expression of Tnfrsf12a and cachexia-induced weight loss can be inhibited in vivo by DM-aKG in a mouse cancer cachexia model. These findings highlight a connection between metabolic stress and cancer cachexia development.
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Affiliation(s)
| | | | | | | | | | | | | | - Mei Kong
- Department of Molecular Biology and Biochemistry, School of Biological Sciences, University of California, Irvine, CA 92697, USA
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Gharakhyli EA, Tabar Molla Hassan A, Alipour M, Vahidi S, Samadani AA. The effect of miR-372-5p regulation on CDX1 and CDX2 in the gastric cancer cell line. Horm Mol Biol Clin Investig 2023; 44:271-276. [PMID: 36848481 DOI: 10.1515/hmbci-2022-0045] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2022] [Accepted: 02/08/2023] [Indexed: 03/01/2023]
Abstract
OBJECTIVES MicroRNA expression disruptions play an important function in the expansion of gastric cancer. Previous investigation has indicated that miR-372-5p doing as an oncogene in several malignancies. CDX1 and CDX2, as target genes of miR-372-5p, play the role of tumor suppressors and oncogenes in gastric cancer cells, respectively. The current investigation explored the effects of miR-372-5p regulation on CDX2 and CDX1 in AGS cell lines and studied their molecular mechanism. METHODS hsa-miR-372-5p miRCURY LNA miRNA Inhibitors and Mimic were transfected into AGS cell line. The cell viability and cell cycle calculation were defined by MTT assay and flow cytometry, respectively. The Expression levels of miR-372-5p, CDX1, CDX2 and transfection efficiency were measured using Real-time PCR. Statistical investigation p values <0.05 were considered to be meaningful. RESULTS miR-372-5p particularly was upregulated in control cells and also after transfection by mimic. While its expression was reduced by the inhibitor. Upregulation of miR-372-5p remarkably increased cell growth and led to accumulation in the G2/M phase, although the inhibitor decreased cell growth and accumulation in the S phase. Accordingly, upregulation of miR-372-5p increased CDX2 and decreased CDX1 expression. By inhibition of miR-372-5p, expression of CDX2 was decreased and expression of CDX1 was increased. CONCLUSIONS Up and down-regulation of miR-372-5P has a potential effect on the expression levels of its target genes, CDX1 and CDX22. Accordingly, the downregulation of miR-372-5p may be assumed as a possible therapeutic target in treating gastric cancer.
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Affiliation(s)
| | | | - Majid Alipour
- Department of Cell and Molecular Biology, Babol Branch, Islamic Azad University, Babol, Iran
| | - Sogand Vahidi
- Medical Biology Research Center, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Ali Akbar Samadani
- Guilan Road Trauma Research Center, Guilan University of Medical Sciences, Rasht, Iran
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Ma NY, Li Q, Li XL, Zeng YJ, Huang DZ, Duan YS, Xia J, Liu BD, Rao LY, Rao J, Zhang X. Lactate Decreases Bortezomib Sensitivity and Predicts Poor Clinical Outcomes of Multiple Myeloma. Curr Med Sci 2023; 43:679-688. [PMID: 37326888 DOI: 10.1007/s11596-023-2747-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Accepted: 03/10/2023] [Indexed: 06/17/2023]
Abstract
OBJECTIVE Metabolic disorders are regarded as hallmarks of multiple myeloma (MM) and are responsible for rapid cancer cell proliferation and tumor growth. However, the exact biological roles of metabolites in MM cells have not been fully explored. This study aimed to explore the feasibility and clinical significance of lactate for MM and investigate the molecular mechanism of lactic acid (Lac) in the proliferation of myeloma cells and cell sensitivity to bortezomib (BTZ). METHODS Metabolomic analysis of the serum was carried out to obtain metabolites expression and clinical characteristics in MM patients. The CCK8 assay and flow cytometry were used to detect cell proliferation, apoptosis, and cell cycle changes. Western blotting was used to detect the potential mechanism and apoptosis- and cycle-related protein changes. RESULTS Lactate was highly expressed in both the peripheral blood and bone marrow of MM patients. It was significantly correlated with Durie-Salmon Staging (DS Staging) and the International Staging System (ISS Staging) and the serum and urinary involved/uninvolved free light chain ratios. Patients with relatively high lactate levels had a poor treatment response. Moreover, in vitro experiments showed that Lac could promote the proliferation of tumor cells and decrease the proportion of G0/G1-phase cells, which was accompanied by an increased proportion of S-phase cells. In addition, Lac could decrease tumor sensitivity to BTZ by disrupting the expression of nuclear factor kappa B subunit 2 (NFkB2) and RelB. CONCLUSION Metabolic changes are important in MM cell proliferation and treatment response; lactate could be used as a biomarker in MM and as a therapeutic target to overcome cell resistance to BTZ.
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Affiliation(s)
- Na-Ya Ma
- Medical Center of Hematology, Xinqiao Hospital, Army Medical University, Chongqing, 400037, China
- State Key Laboratory of Trauma, Burns and Combined Injury, Army Medical University, Chongqing, 400037, China
| | - Qiong Li
- Medical Center of Hematology, Xinqiao Hospital, Army Medical University, Chongqing, 400037, China
- State Key Laboratory of Trauma, Burns and Combined Injury, Army Medical University, Chongqing, 400037, China
| | - Xin-Lei Li
- Medical Center of Hematology, Xinqiao Hospital, Army Medical University, Chongqing, 400037, China
- State Key Laboratory of Trauma, Burns and Combined Injury, Army Medical University, Chongqing, 400037, China
| | - Yun-Jing Zeng
- Medical Center of Hematology, Xinqiao Hospital, Army Medical University, Chongqing, 400037, China
- State Key Laboratory of Trauma, Burns and Combined Injury, Army Medical University, Chongqing, 400037, China
| | - De-Zhi Huang
- Medical Center of Hematology, Xinqiao Hospital, Army Medical University, Chongqing, 400037, China
- State Key Laboratory of Trauma, Burns and Combined Injury, Army Medical University, Chongqing, 400037, China
| | - Yi-Shuo Duan
- Medical Center of Hematology, Xinqiao Hospital, Army Medical University, Chongqing, 400037, China
- State Key Laboratory of Trauma, Burns and Combined Injury, Army Medical University, Chongqing, 400037, China
| | - Jing Xia
- Medical Center of Hematology, Xinqiao Hospital, Army Medical University, Chongqing, 400037, China
- State Key Laboratory of Trauma, Burns and Combined Injury, Army Medical University, Chongqing, 400037, China
| | - Bang-Dong Liu
- Medical Center of Hematology, Xinqiao Hospital, Army Medical University, Chongqing, 400037, China
- State Key Laboratory of Trauma, Burns and Combined Injury, Army Medical University, Chongqing, 400037, China
| | - Ling-Yi Rao
- Medical Center of Hematology, Xinqiao Hospital, Army Medical University, Chongqing, 400037, China
- State Key Laboratory of Trauma, Burns and Combined Injury, Army Medical University, Chongqing, 400037, China
| | - Jun Rao
- Medical Center of Hematology, Xinqiao Hospital, Army Medical University, Chongqing, 400037, China.
- State Key Laboratory of Trauma, Burns and Combined Injury, Army Medical University, Chongqing, 400037, China.
- National Clinical Research Center for Hematologic Diseases, First Affiliated Hospital of Soochow University, Soochow, 215031, China.
| | - Xi Zhang
- Medical Center of Hematology, Xinqiao Hospital, Army Medical University, Chongqing, 400037, China.
- State Key Laboratory of Trauma, Burns and Combined Injury, Army Medical University, Chongqing, 400037, China.
- National Clinical Research Center for Hematologic Diseases, First Affiliated Hospital of Soochow University, Soochow, 215031, China.
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Hemmerlein B, Reinhardt L, Wiechens B, Khromov T, Schliephake H, Brockmeyer P. Is CCL2 an Important Mediator of Mast Cell-Tumor Cell Interactions in Oral Squamous Cell Carcinoma? Int J Mol Sci 2023; 24:ijms24043641. [PMID: 36835050 PMCID: PMC9963724 DOI: 10.3390/ijms24043641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Revised: 02/08/2023] [Accepted: 02/09/2023] [Indexed: 02/17/2023] Open
Abstract
In this study, we aimed to evaluate the influence of interactions between mast cells (MCs) and oral squamous cell carcinoma (OSCC) tumor cells on tumor proliferation and invasion rates and identify soluble factors mediating this crosstalk. To this end, MC/OSCC interactions were characterized using the human MC cell line LUVA and the human OSCC cell line PCI-13. The influence of an MC-conditioned (MCM) medium and MC/OSCC co-cultures on the proliferative and invasive properties of the tumor cells was investigated, and the most interesting soluble factors were identified by multiplex ELISA analysis. LUVA/PCI-13 co-cultures increased tumor cell proliferation significantly (p = 0.0164). MCM reduced PCI-13 cell invasion significantly (p = 0.0010). CC chemokine ligand 2 (CCL2) secretion could be detected in PCI-13 monocultures and be significantly (p = 0.0161) increased by LUVA/PCI-13 co-cultures. In summary, the MC/OSCC interaction influences tumor cell characteristics, and CCL2 could be identified as a possible mediator.
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Affiliation(s)
| | - Luisa Reinhardt
- Department of Oral and Maxillofacial Surgery, University Medical Center Goettingen, 37075 Goettingen, Germany
| | - Bernhard Wiechens
- Department of Orthodontics, University Medical Center Goettingen, 37075 Goettingen, Germany
| | - Tatjana Khromov
- Institute for Clinical Chemistry, University Medical Center Goettingen, 37075 Goettingen, Germany
| | - Henning Schliephake
- Department of Oral and Maxillofacial Surgery, University Medical Center Goettingen, 37075 Goettingen, Germany
| | - Phillipp Brockmeyer
- Department of Oral and Maxillofacial Surgery, University Medical Center Goettingen, 37075 Goettingen, Germany
- Correspondence:
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Destro G, Chen Z, Chan CY, Fraser C, Dias G, Mosley M, Guibbal F, Gouverneur V, Cornelissen B. A radioiodinated rucaparib analogue as an Auger electron emitter for cancer therapy. Nucl Med Biol 2023; 116-117:108312. [PMID: 36621256 DOI: 10.1016/j.nucmedbio.2022.108312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Revised: 12/21/2022] [Accepted: 12/22/2022] [Indexed: 12/29/2022]
Abstract
INTRODUCTION Radioligand therapy (RLT) is an expanding field that has shown great potential in the fight against cancer. Radionuclides that can be carried by selective ligands such as antibodies, peptides, and small molecules targeting cancerous cells have demonstrated a clear improvement in the move towards precision medicine. Poly (ADP-ribose) polymerase (PARP) is a family of enzymes involved in DNA damage repair signalling pathway, with PARP inhibitors olaparib, talazoparib, niraparib, veliparib, and rucaparib having FDA approval for cancer therapy in routine clinical use. Based on our previous work with the radiolabelled PARP inhibitor [18F]rucaparib, we replaced the fluorine-18 moiety, used for PET imaging, with iodine-123, a radionuclide used for SPECT imaging and Auger electron therapy, resulting in 8-[123I]iodo-5-(4-((methylamino)methyl)phenyl)-2,3,4,6-tetrahydro-1H-azepino[5,4,3-cd]indol-1-one, ([123I]GD1), as a potential radiopharmaceutical for RLT. METHODS [123I]GD1 was synthesized via copper-mediated radioiodination from a selected boronic esters precursor. In vitro uptake, retention, blocking, and effects on clonogenic survival with [123I]GD1 treatment were tested in a panel of cancer cell lines. Enzymatic inhibition of PARP by GD1 was also tested in a cell-free system. The biodistribution of [123I]GD1 was investigated by SPECT/CT in mice following intravenous administration. RESULTS Cell-free enzymatic inhibition and in vitro blocking experiments confirmed a modest ability of GD1 to inhibit PARP-1, IC50 = 239 nM. In vitro uptake of [123I]GD1 in different cell lines was dose dependent, and radiolabelled compound was retained in cells for >2 h. Significantly reduced clonogenic survival was observed in vitro after exposure of cells for 1 h with as low as 50 kBq of [123I]GD1. The biodistribution of [123I]GD1 was further characterized in vivo showing both renal and hepatobiliary clearance pathways with a biphasic blood clearance. CONCLUSION We present the development of a new theragnostic agent based on the rucaparib scaffold and its evaluation in in vitro and in vivo models. The data reported show that [123I]GD1 may have potential to be used as a theragnostic agent.
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Affiliation(s)
- Gianluca Destro
- Oxford Institute for Radiation Oncology, Department of Oncology, University of Oxford, Old Road Campus Research Building, Off Roosevelt Drive, OX3 7DQ Oxford, UK; Department of Chemistry, Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford, OX1 3TA, UK.
| | - Zijun Chen
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford, OX1 3TA, UK
| | - Chung Ying Chan
- Oxford Institute for Radiation Oncology, Department of Oncology, University of Oxford, Old Road Campus Research Building, Off Roosevelt Drive, OX3 7DQ Oxford, UK
| | - Claudia Fraser
- Oxford Institute for Radiation Oncology, Department of Oncology, University of Oxford, Old Road Campus Research Building, Off Roosevelt Drive, OX3 7DQ Oxford, UK
| | - Gemma Dias
- Oxford Institute for Radiation Oncology, Department of Oncology, University of Oxford, Old Road Campus Research Building, Off Roosevelt Drive, OX3 7DQ Oxford, UK
| | - Michael Mosley
- Oxford Institute for Radiation Oncology, Department of Oncology, University of Oxford, Old Road Campus Research Building, Off Roosevelt Drive, OX3 7DQ Oxford, UK
| | - Florian Guibbal
- Oxford Institute for Radiation Oncology, Department of Oncology, University of Oxford, Old Road Campus Research Building, Off Roosevelt Drive, OX3 7DQ Oxford, UK
| | - Veronique Gouverneur
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford, OX1 3TA, UK
| | - Bart Cornelissen
- Oxford Institute for Radiation Oncology, Department of Oncology, University of Oxford, Old Road Campus Research Building, Off Roosevelt Drive, OX3 7DQ Oxford, UK; Department of Nuclear Medicine and Molecular Imaging, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands.
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Yamasaki H, Uematsu Y, Okano K, Ichikawa M, Tei M, Hirabayashi M, Uchida K, Ono K, Hirao H. Establishment and characterization of urothelial carcinoma cell lines with and without BRAF mutation (V595E) in dogs. In Vitro Cell Dev Biol Anim 2022; 58:898-911. [PMID: 36477686 PMCID: PMC9780145 DOI: 10.1007/s11626-022-00736-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2022] [Accepted: 11/08/2022] [Indexed: 12/13/2022]
Abstract
Each 5 urothelial carcinoma (UC) cell lines with and without the v-Raf murine sarcoma virus oncogene homolog B (BRAF) gene mutation (V595E) were established and examined V595E-related tumorigenic characteristics in dogs. No typical morphological features were observed in cloned cells with and without V595E. The cell proliferation of both cloned cells showed logarithmic growth curve and those doubling time were 24.9 ± 4.1 h in V595E ( +) and 29.3 ± 11.3 h in V595E ( -). On the growth curve of xenotransplanted tumor in severe combined immunodeficiency mice, 3 out of 5 V595E ( +) and 2 out of 5 V595E ( -) cloned cells revealed gradually and remarkably increasing curve, indicating clearly tumorigenicity. The xenotransplanted tumors with V595E ( +) showed typical features of UC, such as solid proliferation of pleomorphic tumor cells, formation of papillary structure, and glandular structure. Additionally, various vascular formation was observed, probably indicating an advanced growth phase of UC. In mitogen-activated protein kinase (MAPK) signaling pathway, cytoplasmic phosphorylated-BRAF (pBRAF) and cytoplasmic and nuclear phosphorylated-ERK1/2 (pERK1/2) were detected in all 4 tumors with V595E ( +), whereas only cytoplasmic and nuclear pERK1/2 was detected in tumors with V595E ( -). Since V595E can directly activate MAPK signaling pathway, coincidence of V595E with pBRAF (phosphor Thr598/Ser601) indicates acquired resistance to BRAF inhibitors. These established UC cell lines, especially V595E ( +) cell lines, are useful tool for understanding pathophysiological states and controlling therapeutic manners of UC in dogs.
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Affiliation(s)
- Hirofumi Yamasaki
- Japan Animal Referral Medical Center, 2-5-8 Kuji, Takatsu-Ku, Kawasaki-Shi, Kanagawa, 213-0032, Japan
| | - Yosuke Uematsu
- Canine-Lab, 3-5-2 Ueno, Taito-Ku, Tokyo, 110-0005, Japan
| | - Kumiko Okano
- Japan Animal Referral Medical Center, 2-5-8 Kuji, Takatsu-Ku, Kawasaki-Shi, Kanagawa, 213-0032, Japan
| | - Mika Ichikawa
- Japan Animal Referral Medical Center, 2-5-8 Kuji, Takatsu-Ku, Kawasaki-Shi, Kanagawa, 213-0032, Japan
| | - Meina Tei
- Japan Animal Referral Medical Center, 2-5-8 Kuji, Takatsu-Ku, Kawasaki-Shi, Kanagawa, 213-0032, Japan
| | - Miyuki Hirabayashi
- Department of Veterinary Pathology, Faculty of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-Ku, Tokyo, 113-8657, Japan
| | - Kazuyuki Uchida
- Department of Veterinary Pathology, Faculty of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-Ku, Tokyo, 113-8657, Japan
| | - Kenichiro Ono
- Japan Animal Referral Medical Center, 2-5-8 Kuji, Takatsu-Ku, Kawasaki-Shi, Kanagawa, 213-0032, Japan.
| | - Hidehiro Hirao
- Japan Animal Referral Medical Center, 2-5-8 Kuji, Takatsu-Ku, Kawasaki-Shi, Kanagawa, 213-0032, Japan
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Suresh V, Dash P, Suklabaidya S, Murmu KC, Sasmal PK, Jogdand GM, Parida D, Sethi M, Das B, Mohapatra D, Saha S, Prasad P, Satoskar A, Senapati S. MIF confers survival advantage to pancreatic CAFs by suppressing interferon pathway-induced p53-dependent apoptosis. FASEB J 2022; 36:e22449. [PMID: 35839070 DOI: 10.1096/fj.202101953r] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Revised: 06/22/2022] [Accepted: 06/30/2022] [Indexed: 11/11/2022]
Abstract
The presence of activated pancreatic stellate cells (PSCs) in the pancreatic ductal adenocarcinoma (PDAC) microenvironment plays a significant role in cancer progression. Macrophage migration inhibitory factor (MIF) is overexpressed in PDAC tissues and expressed by both cancer and stromal cells. The pathophysiological role of MIF in PDAC-associated fibroblasts or PSCs is yet to be elucidated. Here we report that the PSCs of mouse or cancer-associated fibroblast cells (CAFs) of human expresses MIF and its receptors, whose expression gets upregulated upon LPS or TNF-α stimulation. In vitro functional experiments showed that MIF significantly conferred a survival advantage to CAFs/PSCs upon growth factor deprivation. Genetic or pharmacological inhibition of MIF also corroborated these findings. Further, co-injection of mouse pancreatic cancer cells with PSCs isolated from Mif-/- or Mif+/+ mice confirmed the pro-survival effect of MIF in PSCs and also demonstrated the pro-tumorigenic role of MIF expressed by CAFs in vivo. Differential gene expression analysis and in vitro mechanistic studies indicated that MIF expressed by activated CAFs/PSCs confers a survival advantage to these cells by suppression of interferon pathway induced p53 dependent apoptosis.
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Affiliation(s)
- Voddu Suresh
- Tumor Microenvironment and Animal Models Lab, Department of Cancer Biology, Institute of Life Sciences, Bhubaneswar, India
- Regional Centre for Biotechnology, Faridabad, India
| | - Pujarini Dash
- Tumor Microenvironment and Animal Models Lab, Department of Cancer Biology, Institute of Life Sciences, Bhubaneswar, India
| | - Sujit Suklabaidya
- Tumor Microenvironment and Animal Models Lab, Department of Cancer Biology, Institute of Life Sciences, Bhubaneswar, India
| | - Krushna Chandra Murmu
- Regional Centre for Biotechnology, Faridabad, India
- Epigenetic and Chromatin Biology Unit, Institute of Life Sciences, Bhubaneswar, India
| | - Prakash K Sasmal
- Department of General Surgery, All India Institute of Medical Sciences, Bhubaneswar, India
| | - Gajendra M Jogdand
- Infectious Disease Biology, Institute of Life Sciences, Bhubaneswar, India
| | - Deepti Parida
- Tumor Microenvironment and Animal Models Lab, Department of Cancer Biology, Institute of Life Sciences, Bhubaneswar, India
- Regional Centre for Biotechnology, Faridabad, India
| | - Manisha Sethi
- Tumor Microenvironment and Animal Models Lab, Department of Cancer Biology, Institute of Life Sciences, Bhubaneswar, India
- Regional Centre for Biotechnology, Faridabad, India
| | - Biswajit Das
- Tumor Microenvironment and Animal Models Lab, Department of Cancer Biology, Institute of Life Sciences, Bhubaneswar, India
| | - Debasish Mohapatra
- Tumor Microenvironment and Animal Models Lab, Department of Cancer Biology, Institute of Life Sciences, Bhubaneswar, India
- Kalinga Institute of Industrial Technology, Bhubaneswar, India
| | - Subha Saha
- Regional Centre for Biotechnology, Faridabad, India
- Epigenetic and Chromatin Biology Unit, Institute of Life Sciences, Bhubaneswar, India
| | - Punit Prasad
- Epigenetic and Chromatin Biology Unit, Institute of Life Sciences, Bhubaneswar, India
| | - Abhay Satoskar
- Department of Microbiology, The Ohio State University, Columbus, Ohio, USA
| | - Shantibhusan Senapati
- Tumor Microenvironment and Animal Models Lab, Department of Cancer Biology, Institute of Life Sciences, Bhubaneswar, India
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Ghosh S, Singh R, Vanwinkle ZM, Guo H, Vemula PK, Goel A, Haribabu B, Jala VR. Microbial metabolite restricts 5-fluorouracil-resistant colonic tumor progression by sensitizing drug transporters via regulation of FOXO3-FOXM1 axis. Theranostics 2022; 12:5574-5595. [PMID: 35910798 PMCID: PMC9330515 DOI: 10.7150/thno.70754] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Accepted: 07/06/2022] [Indexed: 11/20/2022] Open
Abstract
The survival rate of colorectal cancer patients is adversely affected by the selection of tumors resistant to conventional anti-cancer drugs such as 5-fluorouracil (5FU). Although there is mounting evidence that commensal gut microbiota is essential for effective colon cancer treatment, the detailed molecular mechanisms and the role of gut microbial metabolites remain elusive. The goal of this study is to decipher the impact and mechanisms of gut microbial metabolite, urolithin A (UroA) and its structural analogue, UAS03 on reversal of 5FU-resistant (5FUR) colon cancers. Methods: We have utilized the SW480 and HCT-116 parental (5FU-sensitive) and 5FUR colon cancer cells to examine the chemosensitization effects of UroA or UAS03 by using both in vitro and in vivo models. The effects of mono (UroA/UAS03/5FU) and combinatorial therapy (UroA/UAS03 + 5FU) on cell proliferation, apoptosis, cell migration and invasion, regulation of epithelial mesenchymal transition (EMT) mediators, expression and activities of drug transporters, and their regulatory transcription factors were examined using molecular, cellular, immunological and flowcytometric methods. Further, the anti-tumor effects of mono/combination therapy (UroA or UAS03 or 5FU or UroA/UAS03 + 5FU) were examined using pre-clinical models of 5FUR-tumor xenografts in NRGS mice and azoxymethane (AOM)-dextran sodium sulfate (DSS)-induced colon tumors. Results: Our data showed that UroA or UAS03 in combination with 5FU significantly inhibited cell viability, proliferation, invasiveness as well as induced apoptosis of the 5FUR colon cancer cells compared to mono treatments. Mechanistically, UroA or UAS03 chemosensitized the 5FUR cancer cells by downregulating the expression and activities of drug transporters (MDR1, BCRP, MRP2 and MRP7) leading to a decrease in the efflux of 5FU. Further, our data suggested the UroA or UAS03 chemosensitized 5FUR cancer cells to 5FU treatment through regulating FOXO3-FOXM1 axis. Oral treatment with UroA or UAS03 in combination with low dose i.p. 5FU significantly reduced the growth of 5FUR-tumor xenografts in NRGS mice. Further, combination therapy significantly abrogated colonic tumors in AOM-DSS-induced colon tumors in mice. Conclusions: In summary, gut microbial metabolite UroA and its structural analogue UAS03 chemosensitized the 5FUR colon cancers for effective 5FU chemotherapy. This study provided the novel characteristics of gut microbial metabolites to have significant translational implications in drug-resistant cancer therapeutics.
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Affiliation(s)
- Sweta Ghosh
- Department of Microbiology and Immunology, Brown Cancer Center, Center for Microbiomics, Inflammation and Pathogenicity, University of Louisville, Louisville, KY, USA
| | - Rajbir Singh
- Department of Microbiology and Immunology, Brown Cancer Center, Center for Microbiomics, Inflammation and Pathogenicity, University of Louisville, Louisville, KY, USA
| | - Zachary Matthew Vanwinkle
- Department of Microbiology and Immunology, Brown Cancer Center, Center for Microbiomics, Inflammation and Pathogenicity, University of Louisville, Louisville, KY, USA
| | - Haixun Guo
- Department of Radiology, Center for Predictive Medicine, University of Louisville, Louisville, KY, USA
| | - Praveen Kumar Vemula
- Institute for Stem Cell Biology and Regenerative Medicine (inStem), GKVK campus, Bangalore, Karnataka 560065, India
| | - Ajay Goel
- Department of Molecular Diagnostics and Experimental Therapeutics, City of Hope Comprehensive Cancer Center, Duarte, CA, USA
| | - Bodduluri Haribabu
- Department of Microbiology and Immunology, Brown Cancer Center, Center for Microbiomics, Inflammation and Pathogenicity, University of Louisville, Louisville, KY, USA
| | - Venkatakrishna Rao Jala
- Department of Microbiology and Immunology, Brown Cancer Center, Center for Microbiomics, Inflammation and Pathogenicity, University of Louisville, Louisville, KY, USA
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Seco J, King CC, Camazzola G, Jansen J, Tirinato L, Marafioti MG, Hanley R, Pagliari F, Beckman SP. Modulating Nucleus Oxygen Concentration by Altering Intramembrane Cholesterol Levels: Creating Hypoxic Nucleus in Oxic Conditions. Int J Mol Sci 2022; 23:ijms23095077. [PMID: 35563465 PMCID: PMC9105739 DOI: 10.3390/ijms23095077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Revised: 04/25/2022] [Accepted: 04/28/2022] [Indexed: 11/26/2022] Open
Abstract
We propose a novel mechanism by which cancer cells can modulate the oxygen concentration within the nucleus, potentially creating low nuclear oxygen conditions without the need of an hypoxic micro-environment and suited for allowing cancer cells to resist chemo- and radio-therapy. The cells ability to alter intra-cellular oxygen conditions depends on the amount of cholesterol present within the cellular membranes, where high levels of cholesterol can yield rigid membranes that slow oxygen diffusion. The proposed mechanism centers on the competition between (1) the diffusion of oxygen within the cell and across cellular membranes that replenishes any consumed oxygen and (2) the consumption of oxygen in the mitochondria, peroxisomes, endoplasmic reticulum (ER), etc. The novelty of our work centers around the assumption that the cholesterol content of a membrane can affect the oxygen diffusion across the membrane, reducing the cell ability to replenish the oxygen consumed within the cell. For these conditions, the effective diffusion rate of oxygen becomes of the same order as the oxygen consumption rate, allowing the cell to reduce the oxygen concentration of the nucleus, with implications to the Warburg Effect. The cellular and nucleus oxygen content is indirectly evaluated experimentally for bladder (T24) cancer cells and during the cell cycle, where the cells are initially synchronized using hydroxeaurea (HU) at the late G1-phase/early S-phase. The analysis of cellular and nucleus oxygen concentration during cell cycle is performed via (i) RT-qPCR gene analysis of hypoxia inducible transcription factors (HIF) and prolyl hydroxylases (PHD) and (ii) radiation clonogenic assay every 2 h, after release from synchronization. The HIF/PHD genes allowed us to correlate cellular oxygen with oxygen concentration in the nucleus that is obtained from the cells radiation response, where the amount DNA damage due to radiation is directly related to the amount of oxygen present in the nucleus. We demonstrate that during the S-phase cells can become hypoxic in the late S-phase/early G2-phase and therefore the radiation resistance increases 2- to 3-fold.
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Affiliation(s)
- Joao Seco
- Division of Biomedical Physics in Radiation Oncology, DKFZ German Cancer Research Center, 69120 Heidelberg, Germany; (G.C.); (J.J.); (L.T.); (M.G.M.); (R.H.); (F.P.)
- Department of Physics and Astronomy, Heidelberg University, 69120 Heidelberg, Germany
- Correspondence:
| | - Clarence C. King
- School of Mechanical and Materials Engineering, Washington State University, Pullman, WA 99164, USA; (C.C.K.); (S.P.B.)
| | - Gianmarco Camazzola
- Division of Biomedical Physics in Radiation Oncology, DKFZ German Cancer Research Center, 69120 Heidelberg, Germany; (G.C.); (J.J.); (L.T.); (M.G.M.); (R.H.); (F.P.)
| | - Jeannette Jansen
- Division of Biomedical Physics in Radiation Oncology, DKFZ German Cancer Research Center, 69120 Heidelberg, Germany; (G.C.); (J.J.); (L.T.); (M.G.M.); (R.H.); (F.P.)
| | - Luca Tirinato
- Division of Biomedical Physics in Radiation Oncology, DKFZ German Cancer Research Center, 69120 Heidelberg, Germany; (G.C.); (J.J.); (L.T.); (M.G.M.); (R.H.); (F.P.)
| | - Maria G. Marafioti
- Division of Biomedical Physics in Radiation Oncology, DKFZ German Cancer Research Center, 69120 Heidelberg, Germany; (G.C.); (J.J.); (L.T.); (M.G.M.); (R.H.); (F.P.)
| | - Rachel Hanley
- Division of Biomedical Physics in Radiation Oncology, DKFZ German Cancer Research Center, 69120 Heidelberg, Germany; (G.C.); (J.J.); (L.T.); (M.G.M.); (R.H.); (F.P.)
| | - Francesca Pagliari
- Division of Biomedical Physics in Radiation Oncology, DKFZ German Cancer Research Center, 69120 Heidelberg, Germany; (G.C.); (J.J.); (L.T.); (M.G.M.); (R.H.); (F.P.)
| | - Scott P. Beckman
- School of Mechanical and Materials Engineering, Washington State University, Pullman, WA 99164, USA; (C.C.K.); (S.P.B.)
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Pu F, Liu J, Jing D, Chen F, Huang X, Shi D, Wu W, Lin H, Zhao L, Zhang Z, Lv X, Wang B, Zhang Z, Shao Z. LncCCAT1 interaction protein PKM2 upregulates SREBP2 phosphorylation to promote osteosarcoma tumorigenesis by enhancing the Warburg effect and lipogenesis. Int J Oncol 2022; 60:44. [PMID: 35244192 PMCID: PMC8923656 DOI: 10.3892/ijo.2022.5334] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Accepted: 12/30/2021] [Indexed: 11/25/2022] Open
Abstract
Pyruvate kinase M2 (PKM2) plays an important role in the consumption of glucose and the production of lactic acid, the striking feature of cancer metabolism. The association of PKM2 with osteosarcoma (OS) has been reported but its role in OS has yet to be elucidated. To study this, PKM2‑bound RNAs in HeLa cells, a type of cancer cells widely used in the study of molecular function and mechanism, were obtained. Peak calling analysis revealed that PKM2 binds to long noncoding RNAs (lncRNAs), which are associated with cancer pathogenesis and development. Validation of the PKM2‑lncRNA interaction in the human OS cell line revealed that lncRNA colon cancer associated transcript‑1 (lncCCAT1) interacted with PKM2, which upregulated the phosphorylation of sterol regulatory element‑binding protein 2 (SREBP2). These factors promoted the Warburg effect, lipogenesis, and OS cell growth. PKM2 appears to be a key regulator in OS by binding to lncCCAT1. This further extends the biological functions of PKM2 in tumorigenesis and makes it a novel potential therapeutic for OS.
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Affiliation(s)
- Feifei Pu
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, P.R. China
| | - Jianxiang Liu
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, P.R. China
| | - Doudou Jing
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, P.R. China
| | - Fengxia Chen
- Department of Radiation and Medical Oncology, Zhongnan Hospital, Wuhan University, Wuhan, Hubei 430071, P.R. China
| | - Xin Huang
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, P.R. China
| | - Deyao Shi
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, P.R. China
| | - Wei Wu
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, P.R. China
| | - Hui Lin
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, P.R. China
| | - Lei Zhao
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, P.R. China
| | - Zhenhao Zhang
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, P.R. China
| | - Xiao Lv
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, P.R. China
| | - Baichuan Wang
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, P.R. China
| | - Zhicai Zhang
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, P.R. China
| | - Zengwu Shao
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, P.R. China
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Li Z, Xu J, Guan H, Lai J, Yang X, Ma J. Circ_0059354 aggravates the progression of papillary thyroid carcinoma by elevating ARFGEF1 through sponging miR-766-3p. J Endocrinol Invest 2022; 45:825-836. [PMID: 34854069 DOI: 10.1007/s40618-021-01713-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/07/2021] [Accepted: 11/19/2021] [Indexed: 10/19/2022]
Abstract
BACKGROUND Circular RNAs (circRNAs) have been identified as vital players in tumors, including papillary thyroid carcinoma (PTC). The purpose of this study is to explore the functions of circ_0059354 on PTC development. METHODS Quantitative real-time polymerase chain reaction (qRT-PCR) was conducted to examine the levels of circ_0059354, microRNA-766-3p (miR-766-3p) and ADP ribosylation factor guanine nucleotide exchange factor 1 (ARFGEF1). Cell Counting Kit-8 (CCK-8) assay and colony formation assay were proceeded for cell proliferation ability. Transwell assay was conducted for cell migration and invasion. Tube formation assay was employed to examine the angiogenesis ability. Flow cytometry analysis was adopted for cell apoptosis. Western blot assay was conducted for protein levels. Dual-luciferase reporter assay and RNA immunoprecipitation (RIP) assay were utilized to verify the relationships among circ_0059354, miR-766-3p and ARFGEF1. The murine xenograft model was constructed to analyze the function of circ_0059354 in vivo. RESULTS Circ_0059354 level was abnormally increased in PTC tissues and cells. Functionally, circ_0059354 silencing suppressed cell proliferation, migration, invasion and angiogenesis and facilitated apoptosis in PTC cells. Circ_0059354 was identified to sponge miR-766-3p, which directly targeted ARFGEF1. Moreover, circ_0059354 directly targeted miR-766-3p to positively regulated ARFGEF1 expression. MiR-766-3p inhibition reversed circ_0059354 knockdown-mediated effect of PTC cell malignant behaviors. Overexpression of miR-766-3p restrained the malignant behaviors of PTC cells, whereas ARFGEF1 elevation reversed the effects. Additionally, circ_0059354 deficiency blocked tumor growth in vivo. CONCLUSION Circ_0059354 served as an oncogene in PTC progression through regulating miR-766-3p/ARFGEF1 axis.
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Affiliation(s)
- Z Li
- Department of General Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University, No. 157, Xiwu Road, Xi'an, 710004, Shaanxi, China
| | - J Xu
- Department of General Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University, No. 157, Xiwu Road, Xi'an, 710004, Shaanxi, China
| | - H Guan
- Department of General Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University, No. 157, Xiwu Road, Xi'an, 710004, Shaanxi, China
| | - J Lai
- Department of General Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University, No. 157, Xiwu Road, Xi'an, 710004, Shaanxi, China
| | - X Yang
- Department of General Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University, No. 157, Xiwu Road, Xi'an, 710004, Shaanxi, China
| | - J Ma
- Department of General Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University, No. 157, Xiwu Road, Xi'an, 710004, Shaanxi, China.
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Abstract
BACKGROUND Radiotherapy is the main treatment for nasopharyngeal carcinoma. The radioresistance mechanism of cells is related to miRNAs. OBJECTIVES To investigate the miRNA profiling of HONE1 and CNE2 after X-ray therapy. MATERIAL AND METHODS The HONE1 and CNE2 cells were treated with X-ray at 4 Gy, 8 Gy, 16 Gy, and 20 Gy doses. The cell lines CNE2 with the best therapy effects and HONE1 with the worst therapy effects were screened out. Apoptosis and cell viability were detected with flow cytometry and Cell Counting Kit-8 (CCK-8). High-throughput sequencing was performed. A miRNA library was constructed. The miRNA annotation expression distribution, family prediction and target gene interaction, Gene Ontology and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analysis were conducted. RESULTS The 24-hour 20 Gy dose X-rays were selected as the optimal therapy conditions. The CNE2_C, CNE2_M, HONE1_C and HONE1_M miRNAs accounted for 26.5%, 31.7%, 21.3%, and 22.9% of the Cleandata reads count, respectively, and the contents of rRNAs accounted for 24.9%, 14.7%, 25.1%, and 25.1% of the Cleandata reads count, respectively. The miRNAs with differential expression between the HONE1 and CNE2 cell lines including hsa-miR-21-5p, hsa-let-7a-5p, hsa-miR-125a-5p, hsa-miR-26a-5p, hsa-let-7f-5p, hsa-miR-20a-5p, and hsa-miR-24a-3p. There were also differentially expressed miRNAs in HONE1_C vs. HONE1_M, such as hsa-miR-21-5p and hsa-let-7i-5p. The differentially expressed miRNA in CNE2_C vs. CNE2_M was hsa-miR-148b-3p. The Gene Ontology analysis showed that the differentially expressed miRNA interacting genes in HONE1_M vs. CNE2_M were mainly enriched in biological process such as negative and positive regulation of transcription from RNA polymerase II promoter, cellular component such as cytosol and molecular function such as protein binding factor. The KEGG pathway analysis revealed that the differentially expressed miRNA interacting genes in HONE1_M vs. CNE2_M were enriched in the cancer-related pathways, such as pathways in cancer, MAPK signaling pathway and Wnt signaling pathway. CONCLUSIONS Twelve miRNAs and 9 genes which contribute to X-ray radiation resistance were identified. Among those with differential expression between the HONE1 and CNE2 cell lines, which played a regulatory role in multiple pathways, were hsa-miR-20a-5p, hsa-let-7a-5p, hsa-let-7f5p, hsa-let-7i-5p, hsa-miR-30e-5p, hsa-miR-148b-3p, and hsa-miR-200c-3p. The corresponding genes were MAPK1, SOS1, TGFBR1, TGFBR2, TP53, CASP3, CCNE2, PTEN, and CDK2.
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Affiliation(s)
- Hui Luo
- Department of Oncology, The First Affiliated Hospital of Nanchang University, China
| | - Fangyan Zhong
- Department of Oncology, The First Affiliated Hospital of Nanchang University, China
| | - Xiang Jing
- Department of Oncology, Jiangxi Lushan People's Hospital, Jiujiang, China
| | - Hong Lin
- Department of Oncology, The First Affiliated Hospital of Nanchang University, China
| | - Yong Li
- Department of Oncology, The First Affiliated Hospital of Nanchang University, China
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13
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Calo CA, Smith BQ, Dorayappan KDP, Saini U, Lightfoot M, Wagner V, Kalaiyarasan D, Cosgrove C, Wang QE, Maxwell GL, Kálai T, Kuppusamy P, Cohn DE, Selvendiran K. Aberrant expression of TMEM205 signaling promotes platinum resistance in ovarian cancer: An implication for the antitumor potential of DAP compound. Gynecol Oncol 2022; 164:136-145. [PMID: 34756749 DOI: 10.1016/j.ygyno.2021.10.076] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Revised: 10/05/2021] [Accepted: 10/11/2021] [Indexed: 12/17/2022]
Abstract
INTRODUCTION TMEM205 is a novel transmembrane protein associated with platinum resistance (PR) in epithelial ovarian carcinoma (OC), however, the specific mechanisms associated with this resistance remain to be elucidated. METHODS TMEM205 expression was evaluated in platinum-sensitive (PS) versus platinum resistant (PR) ovarian cancer cell lines and patient serum/tissues. Exosomal efflux of platinum was evaluated with inductively coupled plasma mass spectrometry (ICP-MS) after pre-treatment with small molecule inhibitors (L-2663/L-2797) of TMEM205 prior to treatment with platinum. Cytotoxicity of combination treatment was confirmed in vitro and in an in vivo model. RESULTS TMEM205 expression was 10-20 fold higher in PR compared to PS ovarian cancer cell lines, serum samples, and tissues. Co-localization with CD1B was confirmed by in-situ proximity ligation assay suggesting that TMEM205 may mediate PR via the exosomal pathway. Exosomal secretion was significantly increased 5-10 fold in PR cell lines after treatment with carboplatin compared to PS cell lines. Pre-treatment with L-2663 prior to carboplatin resulted in significantly increased intracellular concentration of fluorescently-labeled cisplatin and decreased exosomal efflux of platinum. Decreased cell survival and tumor growth in vitro and in vivo was observed when PR cells were treated with a combination of L-2663 with carboplatin compared to carboplatin alone. CONCLUSION TMEM205 appears to be involved in the development of PR in ovarian cancer through the exosomal efflux of platinum agents. This study provides pre-clinical evidence that TMEM205 could serve as a possible biomarker for PR as well as a therapeutic target in combination with platinum agents.
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Affiliation(s)
- Corinne A Calo
- Division of Gynecologic Oncology, Comprehensive Cancer Center, The Ohio State University Wexner Medical Center, Columbus, OH, USA
| | - Brentley Q Smith
- Division of Gynecologic Oncology, Comprehensive Cancer Center, The Ohio State University Wexner Medical Center, Columbus, OH, USA
| | - Kalpana Deepa Priya Dorayappan
- Division of Gynecologic Oncology, Comprehensive Cancer Center, The Ohio State University Wexner Medical Center, Columbus, OH, USA
| | - Uksha Saini
- Division of Gynecologic Oncology, Comprehensive Cancer Center, The Ohio State University Wexner Medical Center, Columbus, OH, USA
| | - Michelle Lightfoot
- Division of Gynecologic Oncology, Comprehensive Cancer Center, The Ohio State University Wexner Medical Center, Columbus, OH, USA
| | - Vincent Wagner
- Division of Gynecologic Oncology, Comprehensive Cancer Center, The Ohio State University Wexner Medical Center, Columbus, OH, USA
| | - Deepika Kalaiyarasan
- Division of Gynecologic Oncology, Comprehensive Cancer Center, The Ohio State University Wexner Medical Center, Columbus, OH, USA
| | - Casey Cosgrove
- Division of Gynecologic Oncology, Comprehensive Cancer Center, The Ohio State University Wexner Medical Center, Columbus, OH, USA
| | - Qi-En Wang
- Department of Radiation Oncology, Comprehensive Cancer Center, The Ohio State University, USA
| | - G Larry Maxwell
- Inova Women's Service Line and the Inova Schar Cancer Institute, Falls Church, VA, USA
| | - Tamás Kálai
- Institute of Organic and Medicinal Chemistry, Medical School, University of Pécs, Pécs, Hungary
| | - Periannan Kuppusamy
- Departments of Medicine, Geisel School of Medicine, Dartmouth College, 1 Medical Center Drive, Lebanon, NH 03756, USA
| | - David E Cohn
- Division of Gynecologic Oncology, Comprehensive Cancer Center, The Ohio State University Wexner Medical Center, Columbus, OH, USA
| | - Karuppaiyah Selvendiran
- Division of Gynecologic Oncology, Comprehensive Cancer Center, The Ohio State University Wexner Medical Center, Columbus, OH, USA.
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Lei Y, Han P, Chen Y, Wang H, Wang S, Wang M, Liu J, Yan W, Tian D, Liu M. Protein arginine methyltransferase 3 promotes glycolysis and hepatocellular carcinoma growth by enhancing arginine methylation of lactate dehydrogenase A. Clin Transl Med 2022; 12:e686. [PMID: 35090076 PMCID: PMC8797063 DOI: 10.1002/ctm2.686] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Revised: 11/30/2021] [Accepted: 12/15/2021] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Protein arginine methylation has emerged a pivotal role in cancer progression. However, the role of protein arginine methyltransferase 3 (PRMT3) in hepatocellular carcinoma (HCC) remains unknown. METHODS The expression pattern of PRMT3 in HCC was analysed using quantitative real-time-polymerase chain reaction (qRT-PCR), Western blotting and immunohistochemistry assays. Loss- and gain-of-function experiments were carried out to determine the oncogenic role of PRMT3 in HCC. Glucose consumption and lactate production assays, seahorse bioscience, mass spectrometry, co-immunoprecipitation, metabonomic analysis and site-specific mutation experiments were used to explore the underlying molecular mechanisms. Furthermore, a xenograft mouse model was established to investigate the effects of PRMT3 and its inhibitor, SGC707, treatment on tumour growth in vivo. RESULTS The expression of PRMT3 was significantly upregulated in HCC, with high expression of which correlated with poor prognosis. PRMT3 knockdown led to the decrease in proliferation, glycolysis of HCC cells and tumour growth, whilst its overexpression showed opposite results. The catalytic activity of PRMT3 was important in mediating these biological processes. Mechanistically, our data showed that PRMT3 interacted with and mediated asymmetric dimethylarginine (ADMA) modification of lactate dehydrogenase A (LDHA) at arginine 112 (R112). Compared with LDHA-wild-type (LDHA-WT) cells, LDHA-R112K-mutant-expressing HCC cells exhibited a decrease in lactate dehydrogenase (LDH) activity, HCC cell glycolysis and proliferation. Furthermore, the administration of SGC707, a selective inhibitor of PRMT3, disrupted the PRMT3-mediated LDHA methylation and abolished PRMT3-induced HCC glycolysis and tumour growth. CONCLUSIONS Our results suggested a novel oncogenic role of PRMT3 in HCC, and it could be a promising therapeutic target for HCC by linking post-translational modification and cancer metabolism.
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Affiliation(s)
- Yu Lei
- Department of Gastroenterology, Tongji Hospital of Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubei ProvinceChina
| | - Ping Han
- Department of Gastroenterology, Tongji Hospital of Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubei ProvinceChina
| | - Yu Chen
- Department of Gastroenterology, Tongji Hospital of Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubei ProvinceChina
| | - Han Wang
- Department of Gastroenterology, Tongji Hospital of Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubei ProvinceChina
| | - Shuhui Wang
- Department of Gastroenterology, Tongji Hospital of Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubei ProvinceChina
| | - Muru Wang
- Department of Gastroenterology, Tongji Hospital of Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubei ProvinceChina
| | - Jingmei Liu
- Department of Gastroenterology, Tongji Hospital of Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubei ProvinceChina
| | - Wei Yan
- Department of Gastroenterology, Tongji Hospital of Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubei ProvinceChina
| | - Dean Tian
- Department of Gastroenterology, Tongji Hospital of Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubei ProvinceChina
| | - Mei Liu
- Department of Gastroenterology, Tongji Hospital of Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubei ProvinceChina
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Fan LX, Tao L, Lai YC, Cai SY, Zhao ZY, Yang F, Su RY, Wang Q. Cx32 promotes autophagy and produces resistance to SN‑induced apoptosis via activation of AMPK signalling in cervical cancer. Int J Oncol 2022; 60:10. [PMID: 34970699 DOI: 10.3892/ijo.2021.5300] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Accepted: 10/01/2021] [Indexed: 11/06/2022] Open
Abstract
The roles of gap junctions (GJs) and its components, connexins, in the autophagy of cervical cancer cells have been rarely investigated. Our previous study demonstrated that connexin 32 (Cx32) exerted an anti‑apoptotic effect on cervical cancer. However, as an important regulator of apoptosis, whether the autophagy is involved in the function of Cx32 on cervical cancer cells is not well defined. The present study aimed to investigate the role of Cx32 on autophagy and apoptosis inhibition in cervical cancer cells. The expression levels of Cx32 and the autophagy‑associated protein LC3‑Ⅱ in paracancerous cervical tissues (n=30) and cervical cancer (n=50) tissues were determined via western blotting. In total, 45 cervical cancer specimens were used to evaluate the clinical relevance of Cx32 and LC3‑Ⅱ. It was found that both Cx32 and LC3‑Ⅱ were upregulated in cervical cancer tissues compared with those in paracancerous cervical tissues. The effect of Cx32 on autophagy was examined by detecting the change of LC3‑Ⅱ using western blotting, transfection with enhanced green fluorescent protein‑LC3 plasmid and transmission electron microscopy analysis. Overexpression of Cx32 significantly enhanced autophagy in HeLa‑Cx32 cells, whereas knockdown of Cx32 suppressed autophagy in C‑33A cells. The flow cytometry results demonstrated that Cx32 inhibited the apoptosis of cervical cancer cells by promoting autophagy. Moreover, Cx32 triggered autophagy via the activation of the AMP‑activated protein kinase (AMPK) signalling, regardless of the presence or absence of GJs. Collectively, it was identified that Cx32 exerted its anti‑apoptotic effect by activating autophagy via the AMPK pathway in cervical cancer, which demonstrates a novel mechanism for Cx32 in human cervical cancer progression.
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Affiliation(s)
- Li-Xia Fan
- Department of Pharmacology, Zhongshan School of Medicine, Sun Yat‑Sen University, Guangzhou, Guangdong 510080, P.R. China
| | - Liang Tao
- Department of Pharmacology, Zhongshan School of Medicine, Sun Yat‑Sen University, Guangzhou, Guangdong 510080, P.R. China
| | - Yong-Chang Lai
- Department of Urology, The Eighth Affiliated Hospital, Sun Yat‑Sen University, Shenzhen, Guangdong 518033, P.R. China
| | - Shao-Yi Cai
- Department of Pharmacology, Zhongshan School of Medicine, Sun Yat‑Sen University, Guangzhou, Guangdong 510080, P.R. China
| | - Zi-Yu Zhao
- Department of Pharmacology, Zhongshan School of Medicine, Sun Yat‑Sen University, Guangzhou, Guangdong 510080, P.R. China
| | - Feng Yang
- Department of Pharmacology, Zhongshan School of Medicine, Sun Yat‑Sen University, Guangzhou, Guangdong 510080, P.R. China
| | - Ri-Ya Su
- Department of Pharmacology, Zhongshan School of Medicine, Sun Yat‑Sen University, Guangzhou, Guangdong 510080, P.R. China
| | - Qin Wang
- Department of Pharmacology, Zhongshan School of Medicine, Sun Yat‑Sen University, Guangzhou, Guangdong 510080, P.R. China
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Rodriguez OL, Sharp AJ, Watson CT. Limitations of lymphoblastoid cell lines for establishing genetic reference datasets in the immunoglobulin loci. PLoS One 2021; 16:e0261374. [PMID: 34898642 PMCID: PMC8668129 DOI: 10.1371/journal.pone.0261374] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Accepted: 11/30/2021] [Indexed: 11/18/2022] Open
Abstract
Lymphoblastoid cell lines (LCLs) have been critical to establishing genetic resources for biomedical science. They have been used extensively to study human genetic diversity, genome function, and inform the development of tools and methodologies for augmenting disease genetics research. While the validity of variant callsets from LCLs has been demonstrated for most of the genome, previous work has shown that DNA extracted from LCLs is modified by V(D)J recombination within the immunoglobulin (IG) loci, regions that harbor antibody genes critical to immune system function. However, the impacts of V(D)J on short read sequencing data generated from LCLs has not been extensively investigated. In this study, we used LCL-derived short read sequencing data from the 1000 Genomes Project (n = 2,504) to identify signatures of V(D)J recombination. Our analyses revealed sample-level impacts of V(D)J recombination that varied depending on the degree of inferred monoclonality. We showed that V(D)J associated somatic deletions impacted genotyping accuracy, leading to adulterated population-level estimates of allele frequency and linkage disequilibrium. These findings illuminate limitations of using LCLs and short read data for building genetic resources in the IG loci, with implications for interpreting previous disease association studies in these regions.
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Affiliation(s)
- Oscar L. Rodriguez
- Department of Biochemistry and Molecular Genetics, University of Louisville School of Medicine, Louisville, KY, United States of America
| | - Andrew J. Sharp
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, United States of America
| | - Corey T. Watson
- Department of Biochemistry and Molecular Genetics, University of Louisville School of Medicine, Louisville, KY, United States of America
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Shi J, Xiong Z, Wang K, Yuan C, Huang Y, Xiao W, Meng X, Chen Z, Lv Q, Miao D, Liang H, Xu T, Xie K, Yang H, Zhang X. HIF2α promotes tumour growth in clear cell renal cell carcinoma by increasing the expression of NUDT1 to reduce oxidative stress. Clin Transl Med 2021; 11:e592. [PMID: 34841698 PMCID: PMC8567048 DOI: 10.1002/ctm2.592] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Revised: 09/13/2021] [Accepted: 09/17/2021] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND The key role of hypoxia-inducible factor 2alpha (HIF2α) in the process of renal cancer has been confirmed. In the field of tumour research, oxidative stress is also considered to be an important influencing factor. However, the relationship and biological benefits of oxidative stress and HIF2α in ccRCC remain unclear. This research attempts to explore the effect of oxidative stress on the cancer-promoting effect of HIF2α in ccRCC and reveal its mechanism of action. METHODS The bioinformatics analysis for ccRCC is based on whole transcriptome sequencing and TCGA database. The detection of the expression level of related molecules is realised by western blot and PCR. The expression of Nucleoside diphosphate-linked moiety X-type motif 1 (NUDT1) was knocked down by lentiviral infection technology. The functional role of NUDT1 were further investigated by CCK8 assays, transwell assays and cell oxidative stress indicator detection. The exploration of related molecular mechanisms is realised by Luciferase assays and Chromatin immunoprecipitation (ChIP) assays. RESULTS Molecular screening based on knockdown HIF2α sequencing data and oxidative stress related data sets showed that NUDT1 is considered to be an important molecule for the interaction of HIF2α with oxidative stress. Subsequent experimental results showed that NUDT1 can cooperate with HIF2α to promote the progression of ccRCC. And this biological effect was found to be caused by the oxidative stress regulated by NUDT1. Mechanistically, HIF2α transcription activates the expression of NUDT1, thereby inhibiting oxidative stress and promoting the progression of ccRCC. CONCLUSIONS This research clarified a novel mechanism by which HIF2α stabilises sirtuin 3 (SIRT3) through direct transcriptional activation of NUDT1, thereby inhibiting oxidative stress to promote the development of ccRCC. It provided the possibility for the selection of new therapeutic targets for ccRCC and the study of combination medication regimens.
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Affiliation(s)
- Jian Shi
- Department of UrologyUnion HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubeiP. R. China
- Institute of UrologyUnion HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubeiP. R. China
| | - Zhiyong Xiong
- Department of UrologyUnion HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubeiP. R. China
- Institute of UrologyUnion HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubeiP. R. China
| | - Keshan Wang
- Department of UrologyUnion HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubeiP. R. China
- Institute of UrologyUnion HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubeiP. R. China
| | - Changfei Yuan
- Department of UrologyUnion HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubeiP. R. China
- Institute of UrologyUnion HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubeiP. R. China
| | - Yu Huang
- Department of UrologyUnion HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubeiP. R. China
- Institute of UrologyUnion HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubeiP. R. China
| | - Wen Xiao
- Department of UrologyUnion HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubeiP. R. China
- Institute of UrologyUnion HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubeiP. R. China
| | - Xiangui Meng
- Department of UrologyUnion HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubeiP. R. China
- Institute of UrologyUnion HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubeiP. R. China
| | - Zhixian Chen
- Department of UrologyUnion HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubeiP. R. China
- Institute of UrologyUnion HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubeiP. R. China
| | - Qingyang Lv
- Department of UrologyUnion HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubeiP. R. China
- Institute of UrologyUnion HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubeiP. R. China
| | - Daojia Miao
- Department of UrologyUnion HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubeiP. R. China
- Institute of UrologyUnion HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubeiP. R. China
| | - Huageng Liang
- Department of UrologyUnion HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubeiP. R. China
- Institute of UrologyUnion HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubeiP. R. China
| | - Tianbo Xu
- Department of UrologyUnion HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubeiP. R. China
- Institute of UrologyUnion HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubeiP. R. China
| | - Kairu Xie
- Department of Pathogenic BiologySchool of Basic MedicineHuazhong University of Science and TechnologyWuhanHubeiP. R. China
| | - Hongmei Yang
- Department of Pathogenic BiologySchool of Basic MedicineHuazhong University of Science and TechnologyWuhanHubeiP. R. China
| | - Xiaoping Zhang
- Department of UrologyUnion HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubeiP. R. China
- Institute of UrologyUnion HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubeiP. R. China
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18
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Okasho K, Mizuno K, Fukui T, Lin Y, Kamiyama Y, Sunada T, Li X, Kimura H, Sumiyoshi T, Goto T, Kobayashi T, Lin D, Wang Y, Collins CC, Inoue T, Ogawa O, Akamatsu S. Establishment and characterization of a novel treatment-related neuroendocrine prostate cancer cell line KUCaP13. Cancer Sci 2021; 112:2781-2791. [PMID: 33960594 PMCID: PMC8253279 DOI: 10.1111/cas.14935] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Revised: 04/24/2021] [Accepted: 04/26/2021] [Indexed: 12/15/2022] Open
Abstract
The prevalence of neuroendocrine prostate cancer (NEPC) arising from adenocarcinoma (AC) upon potent androgen receptor (AR) pathway inhibition is increasing. Deeper understanding of NEPC biology and development of novel therapeutic agents are needed. However, research is hindered by the paucity of research models, especially cell lines developed from NEPC patients. We established a novel NEPC cell line, KUCaP13, from tissue of a patient initially diagnosed with AC which later recurred as NEPC. The cell line has been maintained permanently in vitro under regular cell culture conditions and is amenable to gene engineering with lentivirus. KUCaP13 cells lack the expression of AR and overexpress NEPC-associated genes, including SOX2, EZH2, AURKA, PEG10, POU3F2, ENO2, and FOXA2. Importantly, the cell line maintains the homozygous deletion of CHD1, which was confirmed in the primary AC of the index patient. Loss of heterozygosity of TP53 and PTEN, and an allelic loss of RB1 with a transcriptomic signature compatible with Rb pathway aberration were revealed. Knockdown of PEG10 using shRNA significantly suppressed growth in vivo. Introduction of luciferase allowed serial monitoring of cells implanted orthotopically or in the renal subcapsule. Although H3K27me was reduced by EZH2 inhibition, reversion to AC was not observed. KUCaP13 is the first patient-derived, treatment-related NEPC cell line with triple loss of tumor suppressors critical for NEPC development through lineage plasticity. It could be valuable in research to deepen the understanding of NEPC.
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MESH Headings
- Adenocarcinoma/pathology
- Animals
- Apoptosis Regulatory Proteins/genetics
- Carcinoma, Neuroendocrine/genetics
- Carcinoma, Neuroendocrine/pathology
- Carcinoma, Neuroendocrine/secondary
- Cell Line, Tumor/metabolism
- Cell Line, Tumor/pathology
- DNA Helicases/genetics
- DNA-Binding Proteins/genetics
- Drug Screening Assays, Antitumor
- Enhancer of Zeste Homolog 2 Protein/antagonists & inhibitors
- Gene Deletion
- Gene Expression
- Genes, Neoplasm
- Genes, Retinoblastoma
- Genes, Tumor Suppressor
- Genes, p53
- Genetic Engineering
- Heterografts
- Homozygote
- Humans
- Karyotyping
- Loss of Heterozygosity
- Male
- Mice, SCID
- Middle Aged
- Neoplasm Recurrence, Local/pathology
- Neoplasm Transplantation
- PTEN Phosphohydrolase/genetics
- Penile Neoplasms/genetics
- Penile Neoplasms/secondary
- Prostatic Neoplasms/genetics
- Prostatic Neoplasms/pathology
- RNA-Binding Proteins/genetics
- Receptors, Androgen
- Mice
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Affiliation(s)
- Kosuke Okasho
- Department of UrologyKyoto University Graduate School of MedicineKyotoJapan
| | - Kei Mizuno
- Department of UrologyKyoto University Graduate School of MedicineKyotoJapan
| | - Tomohiro Fukui
- Department of UrologyKyoto University Graduate School of MedicineKyotoJapan
| | - Yen‐Yi Lin
- Vancouver Prostate CentreUniversity of British ColumbiaVancouverBCCanada
| | - Yuki Kamiyama
- Department of UrologyKyoto University Graduate School of MedicineKyotoJapan
| | - Takuro Sunada
- Department of UrologyKyoto University Graduate School of MedicineKyotoJapan
| | - Xin Li
- Department of UrologyKyoto University Graduate School of MedicineKyotoJapan
| | - Hiroko Kimura
- Department of UrologyKyoto University Graduate School of MedicineKyotoJapan
| | - Takayuki Sumiyoshi
- Department of UrologyKyoto University Graduate School of MedicineKyotoJapan
| | - Takayuki Goto
- Department of UrologyKyoto University Graduate School of MedicineKyotoJapan
| | - Takashi Kobayashi
- Department of UrologyKyoto University Graduate School of MedicineKyotoJapan
| | - Dong Lin
- Department of Experimental TherapeuticsBC Cancer AgencyVancouverBCCanada
| | - Yuzhuo Wang
- Department of Experimental TherapeuticsBC Cancer AgencyVancouverBCCanada
| | - Colin C. Collins
- Vancouver Prostate CentreUniversity of British ColumbiaVancouverBCCanada
| | - Takahiro Inoue
- Department of Nephro‐Urologic SurgeryMie University Graduate School of MedicineTsuJapan
| | - Osamu Ogawa
- Department of UrologyKyoto University Graduate School of MedicineKyotoJapan
| | - Shusuke Akamatsu
- Department of UrologyKyoto University Graduate School of MedicineKyotoJapan
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19
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Cheng Q, Li Q, Xu L, Jiang H. Exosomal microRNA-301a-3p promotes the proliferation and invasion of nasopharyngeal carcinoma cells by targeting BTG1 mRNA. Mol Med Rep 2021; 23:328. [PMID: 33760119 PMCID: PMC7974331 DOI: 10.3892/mmr.2021.11967] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2020] [Accepted: 02/12/2021] [Indexed: 12/18/2022] Open
Abstract
Aberrant microRNA (miRNA/miR) expression plays an important role in the pathogenesis of nasopharyngeal carcinoma (NPC). In the present study, the role and underlying molecular mechanism of miR‑301a‑3p in NPC cells were determined. It was observed that miR‑301a‑3p upregulation promoted NPC cell proliferation, migration, invasion and epithelial‑mesenchymal transition in vitro, whereas its downregulation resulted in the opposite effect. B‑cell translocation gene 1 (BTG1) mRNA was identified as the novel target of miR‑301a‑3p. BTG1 overexpression partially attenuated miR‑301a‑3p‑induced increase in cell proliferation and invasion. miR‑301a‑3p can be transferred by exosomes and positively regulate the proliferation and invasion of NPC cells. Altogether, the present study highlights that exosomal miR‑301a‑3p can promote NPC cell proliferation and invasion by repressing BTG1, thereby resulting in the development of NPC.
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Affiliation(s)
- Qiang Cheng
- Department of Otolaryngology, Jinshan Hospital Affiliated to Fudan University, Shanghai 201508, P.R. China
| | - Qiang Li
- Department of Otolaryngology, Jinshan Hospital Affiliated to Fudan University, Shanghai 201508, P.R. China
| | - Lingen Xu
- Department of Otolaryngology, Jinshan Hospital Affiliated to Fudan University, Shanghai 201508, P.R. China
| | - Hui Jiang
- Department of Otolaryngology, Jinshan Hospital Affiliated to Fudan University, Shanghai 201508, P.R. China
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20
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Kiss E, Forika G, Mohacsi R, Nemeth Z, Krenacs T, Dank M. Methyl-Donors Can Induce Apoptosis and Attenuate Both the Akt and the Erk1/2 Mediated Proliferation Pathways in Breast and Lung Cancer Cell Lines. Int J Mol Sci 2021; 22:ijms22073598. [PMID: 33808426 PMCID: PMC8036837 DOI: 10.3390/ijms22073598] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Revised: 03/23/2021] [Accepted: 03/27/2021] [Indexed: 01/04/2023] Open
Abstract
Dietary methyl-donors play important roles in physiological processes catalyzed by B vitamins as coenzymes, and are used for complementary support in oncotherapy. Our hypothesis was that methyl-donors can not only assist in tolerating cancer treatment but may also directly interfere with tumor growth and proliferation. Therefore, we investigated the proposed cancer inhibitory effects of methyl-donors (in a mixture of L-methionine, choline chloride, folic acid, and vitamin B12) on MCF7 and T47D breast cancer as well as A549 and H1650 lung cancer cell lines. Indeed, methyl-donor treatment significantly reduced the proliferation in all cell lines, possibly through the downregulation of MAPK/ERK and AKT signaling. These were accompanied by the upregulation of the pro-apoptotic Bak and Bax, both in MCF7 and H1650 cells, at reduced anti-apoptotic Mcl-1 and Bcl-2 levels in MCF7 and H1650 cells, respectively. The treatment-induced downregulation of p-p53(Thr55) was likely to contribute to protecting the nuclear localization and apoptosis inducing functions of p53. The presented features are known to improve the sensitivity of cancer therapy. Therefore, these data support the hypothesis, i.e., that methyl-donors may promote apoptotic signaling by protecting p53 functions through downregulating both the MAPK/ERK and the AKT pathways both in breast and lung adenocarcinoma cell lines. Our results can emphasize the importance and benefits of the appropriate dietary supports in cancer treatments. However, further studies are required to confirm these effects without any adverse outcome in clinical settings.
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Affiliation(s)
- Eva Kiss
- 1st Department of Internal Medicine and Oncology, Oncology Profile, Semmelweis University, 1085 Budapest, Hungary; (E.K.); (R.M.); (M.D.)
| | - Gertrud Forika
- 1st Department of Pathology and Experimental Cancer Research, Semmelweis University, 1085 Budapest, Hungary; (G.F.); (T.K.)
| | - Reka Mohacsi
- 1st Department of Internal Medicine and Oncology, Oncology Profile, Semmelweis University, 1085 Budapest, Hungary; (E.K.); (R.M.); (M.D.)
| | - Zsuzsanna Nemeth
- 1st Department of Internal Medicine and Oncology, Oncology Profile, Semmelweis University, 1085 Budapest, Hungary; (E.K.); (R.M.); (M.D.)
- Correspondence: ; Tel.: +36-20-670-1025
| | - Tibor Krenacs
- 1st Department of Pathology and Experimental Cancer Research, Semmelweis University, 1085 Budapest, Hungary; (G.F.); (T.K.)
| | - Magdolna Dank
- 1st Department of Internal Medicine and Oncology, Oncology Profile, Semmelweis University, 1085 Budapest, Hungary; (E.K.); (R.M.); (M.D.)
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21
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Yue C, Piao Y, Bai Y, Liu H, Zhang L. Sinonasal low-grade non-intestinal-type adenocarcinoma: A retrospective analysis and literature review. Ann Diagn Pathol 2021; 52:151709. [PMID: 33550111 DOI: 10.1016/j.anndiagpath.2021.151709] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2021] [Accepted: 01/15/2021] [Indexed: 11/17/2022]
Abstract
Sinonasal low-grade non-intestinal-type adenocarcinomas (LG non-ITACs) are uncommon tumors with unclear histogenesis, although they are presumed to arise from seromucous glands or respiratory epithelium. We investigated the clinicopathological and immunohistochemical features of the tumors, with particular attention to the transition area from the normal epithelium to neoplastic cells and concurrent lesions; these features were compared with those of 10 patients with chronic sinusitis, who served as a control group. Seventeen patients with LG non-ITACs (17 tumors) were enrolled in this retrospective study (9 male patients and 8 female patients; mean age, 48 years [range, 16-74 years]). Tumor cells continuous with respiratory epithelium were detected in 10 tumors composed of a single layer of cells with papillary, tubular, or cystic growth pattern. The tumor cells were uniformly cuboidal to columnar and polar. In seven tumors without transition areas discerned, three tumors consisted of polygonal and flat cells with a solid, acinar, micropapillary and cribriform pattern. The others had the same morphology as those with transition areas. The tumor cells were positive for SOX10 (15/17), S100 protein (8/17), and CK7 (17/17). The normal epithelium connected to the respiratory epithelium was the terminal duct in the control group. Except for the lack of p63-positive cells, the immunophenotype and histomorphology of transition areas with LG non-ITACs were similar to those of the continuous areas between the terminal duct and the respiratory epithelium in the control group. LG non-ITACs are seromucinous tumors, some of which may originate from the terminal ducts of seromucinous glands.
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Affiliation(s)
- Changli Yue
- Department of Pathology, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China; Beijing Key Laboratory of Head and Neck Molecular Diagnostic Pathology, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China
| | - Yingshi Piao
- Department of Pathology, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China; Beijing Key Laboratory of Head and Neck Molecular Diagnostic Pathology, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China
| | - Yuping Bai
- Department of Pathology, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China; Beijing Key Laboratory of Head and Neck Molecular Diagnostic Pathology, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China
| | - Honggang Liu
- Department of Pathology, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China; Beijing Key Laboratory of Head and Neck Molecular Diagnostic Pathology, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China.
| | - Luo Zhang
- Department of Otolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China; Beijing Key Laboratory of Nasal Diseases, Beijing Institute of Otolaryngology, Beijing 100005, China.
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22
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Wright Muelas M, Roberts I, Mughal F, O'Hagan S, Day PJ, Kell DB. An untargeted metabolomics strategy to measure differences in metabolite uptake and excretion by mammalian cell lines. Metabolomics 2020; 16:107. [PMID: 33026554 PMCID: PMC7541387 DOI: 10.1007/s11306-020-01725-8] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Accepted: 09/18/2020] [Indexed: 02/07/2023]
Abstract
INTRODUCTION It is widely but erroneously believed that drugs get into cells by passing through the phospholipid bilayer portion of the plasma and other membranes. Much evidence shows, however, that this is not the case, and that drugs cross biomembranes by hitchhiking on transporters for other natural molecules to which these drugs are structurally similar. Untargeted metabolomics can provide a method for determining the differential uptake of such metabolites. OBJECTIVES Blood serum contains many thousands of molecules and provides a convenient source of biologically relevant metabolites. Our objective was to detect and identify metabolites present in serum, but to also establish a method capable of measure their uptake and secretion by different cell lines. METHODS We develop an untargeted LC-MS/MS method to detect a broad range of compounds present in human serum. We apply this to the analysis of the time course of the uptake and secretion of metabolites in serum by several human cell lines, by analysing changes in the serum that represents the extracellular phase (the 'exometabolome' or metabolic footprint). RESULTS Our method measures some 4000-5000 metabolic features in both positive and negative electrospray ionisation modes. We show that the metabolic footprints of different cell lines differ greatly from each other. CONCLUSION Our new, 15-min untargeted metabolome method allows for the robust and convenient measurement of differences in the uptake of serum compounds by cell lines following incubation in serum. This will enable future research to study these differences in multiple cell lines that will relate this to transporter expression, thereby advancing our knowledge of transporter substrates, both natural and xenobiotic compounds.
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Affiliation(s)
- Marina Wright Muelas
- Department of Biochemistry and Systems Biology, Institute of Systems, Molecular and Integrative Biology, University of Liverpool, Liverpool, UK.
| | - Ivayla Roberts
- Department of Biochemistry and Systems Biology, Institute of Systems, Molecular and Integrative Biology, University of Liverpool, Liverpool, UK
| | - Farah Mughal
- School of Chemistry, The Manchester Institute of Biotechnology, 131, Princess St, Manchester, M1 7DN, UK
- The Manchester Institute of Biotechnology, 131, Princess St, Manchester, M1 7DN, UK
| | - Steve O'Hagan
- The Manchester Institute of Biotechnology, 131, Princess St, Manchester, M1 7DN, UK
- Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, M13 9PL, UK
| | - Philip J Day
- Department of Biochemistry and Systems Biology, Institute of Systems, Molecular and Integrative Biology, University of Liverpool, Liverpool, UK
- Novo Nordisk Foundation Centre for Biosustainability, Technical University of Denmark, Building 220, Chemitorvet, Kgs Lyngby, 2000, Denmark
| | - Douglas B Kell
- Department of Biochemistry and Systems Biology, Institute of Systems, Molecular and Integrative Biology, University of Liverpool, Liverpool, UK.
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23
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Kurlbaum M, Sbiera S, Kendl S, Martin Fassnacht M, Kroiss M. Steroidogenesis in the NCI-H295 Cell Line Model is Strongly Affected By Culture Conditions and Substrain. Exp Clin Endocrinol Diabetes 2020; 128:672-680. [PMID: 32349159 DOI: 10.1055/a-1105-6332] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
CONTEXT NCI-H295 cells are the most widely used model for adrenal steroidogenesis and adrenocortical carcinoma and have been used for decades in laboratories worldwide. However, reported steroidogenic properties differ considerably. OBJECTIVE To evaluate heterogeneity of steroidogenesis among NCI-H295 cell strains, clarify the influence of culture media and test response to inhibitors of steroidogenesis by using liquid chromatography tandem mass spectrometry (LC-MS/MS). METHODS NCI-H295 cells were obtained from two cell banks and cultivated in different media. An LC-MS/MS-based panel analysis of thirteen steroids was adapted for cell culture supernatant. Cells were treated with metyrapone, abiraterone and mitotane. RESULTS Mineralocorticoid synthesis was strongly affected by passaging as reflected by reduction of aldosterone secretion from 0.158±0.006 to 0.017±0.001 µg/106 cells (p<0.05). Relevant differences were also found for cells from two vendors in terms of aldosterone secretion (0.180±0.001 vs. 0.09±0.002 µg/106 cells, p<0.05). Selection of medium strongly impacted on cortisol secretion with>4-fold difference (40.6±5.5 vs. 182.1±23 µg/106 cells) and reflected differential activation of the glucocorticoid pathway. Exposure to abiraterone, metyrapone and mitotane resulted in characteristic steroidogenic profiles consistent with known mechanism of drug action with considerable differences in metabolites upstream of the blocked enzyme. CONCLUSION We demonstrate that steroid hormone secretion in NCI-H295 cells is strongly affected by the individual strain, passage and growing conditions. These factors should be taken into account in the evaluation of experiments analyzing steroid parameters directly or as surrogate parameters of cell viability.
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Affiliation(s)
- Max Kurlbaum
- Department of Internal Medicine I, Division of Endocrinology and Diabetes, University of Würzburg, University Hospital Würzburg, Würzburg, Germany
- University Hospital Würzburg, Central Laboratory, Würzburg, Germany
| | - Silviu Sbiera
- Department of Internal Medicine I, Division of Endocrinology and Diabetes, University of Würzburg, University Hospital Würzburg, Würzburg, Germany
| | - Sabine Kendl
- Department of Internal Medicine I, Division of Endocrinology and Diabetes, University of Würzburg, University Hospital Würzburg, Würzburg, Germany
- University Hospital Würzburg, Central Laboratory, Würzburg, Germany
| | - M Martin Fassnacht
- Department of Internal Medicine I, Division of Endocrinology and Diabetes, University of Würzburg, University Hospital Würzburg, Würzburg, Germany
- University Hospital Würzburg, Central Laboratory, Würzburg, Germany
- Comprehensive Cancer Center Mainfranken, University of Würzburg, Würzburg, Germany
| | - Matthias Kroiss
- Department of Internal Medicine I, Division of Endocrinology and Diabetes, University of Würzburg, University Hospital Würzburg, Würzburg, Germany
- Comprehensive Cancer Center Mainfranken, University of Würzburg, Würzburg, Germany
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24
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Abstract
BACKGROUND Colorectal cancer is the second commonly seen cancer around the world and accounts for 13% of all human cancers. Among them, 25% of all case were diagnosed with metastasis and 50% occurs metastasis during the development of disease. Cetuximab is a chimeric monoclonal antibody against epidermal growth factor receptor, and is used for treatment of metastatic colorectal cancer alone or combined with chemotherapy or radiation therapy. Integrin-beta 1 (ITGB1), which is also known as CD29, and plays an important role in development of malignant cancers. However, the effect of ITGB1 in promoting the anti-tumor effect of cetuximab is not fully understand. METHODS The model of ITGB1 inhibition and overexpression was firstly constructed in LS174T cells, and the viability of cells in each group was detected using CCK-8 assay. The expression of key factors in tumor formation process at transcription level was detected using real-time quantitative polymerase chain reaction method. The expression of key proteins in metastasis process, cell apoptosis and activation of Ras/Raf/MEK signaling pathway was detected using western blotting analysis. And the concentration of key factors of in tumor formation process in cultured medium of LS174T cells were detected using enzyme-linked immunosorbent assay method. RESULTS We found that cetuximab could inhibit the proliferation of LS174T cells, and inhibition of ITGB1 enhanced this effect while overexpression of ITGB1 reduced this effect. We further found that cetuximab could inhibit the expression and secretion of extracellular matrix degradation related molecules in cultured medium and transcription level. Besides, we also found that the expression of key factors in angiogenesis and extracellular matrix degradation related proteins were also reduced after cetuximab treatment. These effects might be mediated by Ras/Raf/MAPK signaling pathway and enhanced after inhibition of ITGB1 expression. CONCLUSION Inhibition of ITGB1 might be a new therapeutic method in colorectal cancer.
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25
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Azawi S, Liehr T, Rincic M, Manferrari M. Molecular Cytogenomic Characterization of the Murine Breast Cancer Cell Lines C-127I, EMT6/P and TA3 Hauschka. Int J Mol Sci 2020; 21:ijms21134716. [PMID: 32630352 PMCID: PMC7369978 DOI: 10.3390/ijms21134716] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Revised: 06/26/2020] [Accepted: 07/01/2020] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND To test and introduce effective and less toxic breast cancer (BC) treatment strategies, animal models, including murine BC cell lines, are considered as perfect platforms. Strikingly, the knowledge on the genetic background of applied BC cell lines is often sparse though urgently necessary for their targeted and really justified application. METHODS In this study, we performed the first molecular cytogenetic characterization for three murine BC cell lines C-127I, EMT6/P and TA3 Hauschka. Besides fluorescence in situ hybridization-banding, array comparative genomic hybridization was also applied. Thus, overall, an in silico translation for the detected imbalances and chromosomal break events in the murine cell lines to the corresponding homologous imbalances in humans could be provided. The latter enabled a comparison of the murine cell line with human BC cytogenomics. RESULTS All three BC cell lines showed a rearranged karyotype at different stages of complexity, which can be interpreted carefully as reflectance of more or less advanced tumor stages. CONCLUSIONS Accordingly, the C-127I cell line would represent the late stage BC while the cell lines EMT6/P and TA3 Hauschka would be models for the premalignant or early BC stage and an early or benign BC, respectively. With this cytogenomic information provided, these cell lines now can be applied really adequately in future research studies.
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Affiliation(s)
- Shaymaa Azawi
- Jena University Hospital, Friedrich Schiller University, Institute of Human Genetics, Am Klinikum 1, D-07747 Jena, Germany
| | - Thomas Liehr
- Jena University Hospital, Friedrich Schiller University, Institute of Human Genetics, Am Klinikum 1, D-07747 Jena, Germany
| | - Martina Rincic
- Croatian Institute for Brain Research, School of Medicine University of Zagreb, Salata 12, 10000 Zagreb, Croatia
| | - Mattia Manferrari
- Jena University Hospital, Friedrich Schiller University, Institute of Human Genetics, Am Klinikum 1, D-07747 Jena, Germany
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Manaloto E, Gowen AA, Lesniak A, He Z, Casey A, Cullen PJ, Curtin JF. Cold atmospheric plasma induces silver nanoparticle uptake, oxidative dissolution and enhanced cytotoxicity in glioblastoma multiforme cells. Arch Biochem Biophys 2020; 689:108462. [PMID: 32590068 DOI: 10.1016/j.abb.2020.108462] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Revised: 05/28/2020] [Accepted: 06/06/2020] [Indexed: 12/18/2022]
Abstract
Silver nanoparticles (AgNP) emerged as a promising reagent for cancer therapy with oxidative stress implicated in the toxicity. Meanwhile, studies reported cold atmospheric plasma (CAP) generation of reactive oxygen and nitrogen species has selectivity towards cancer cells. Gold nanoparticles display synergistic cytotoxicity when combined with CAP against cancer cells but there is a paucity of information using AgNP, prompting to investigate the combined effects of CAP using dielectric barrier discharge system (voltage of 75 kV, current is 62.5 mA, duty cycle of 7.5kVA and input frequency of 50-60Hz) and 10 nm PVA-coated AgNP using U373MG Glioblastoma Multiforme cells. Cytotoxicity in U373MG cells was >100-fold greater when treated with both CAP and PVA-AgNP compared with either therapy alone (IC50 of 4.30 μg/mL with PVA-AgNP alone compared with 0.07 μg/mL after 25s CAP and 0.01 μg/mL 40s CAP). Combined cytotoxicity was ROS-dependent and was prevented using N-Acetyl Cysteine. A novel darkfield spectral imaging method investigated and quantified AgNP uptake in cells determining significantly enhanced uptake, aggregation and subcellular accumulation following CAP treatment, which was confirmed and quantified using atomic absorption spectroscopy. The results indicate that CAP decreases nanoparticle size, decreases surface charge distribution of AgNP and induces uptake, aggregation and enhanced cytotoxicity in vitro.
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Affiliation(s)
- Eline Manaloto
- BioPlasma Research Group, School of Food Science and Environmental Health, Technological University Dublin, Ireland; FOCAS Research Institute, Technological University Dublin, Ireland.
| | - Aoife A Gowen
- UCD School of Biosystems and Food Engineering, UCD, Ireland
| | - Anna Lesniak
- UCD School of Biosystems and Food Engineering, UCD, Ireland
| | - Zhonglei He
- BioPlasma Research Group, School of Food Science and Environmental Health, Technological University Dublin, Ireland; FOCAS Research Institute, Technological University Dublin, Ireland; Environmental Sustainability and Health Institute, Technological University Dublin, Ireland
| | - Alan Casey
- FOCAS Research Institute, Technological University Dublin, Ireland; School of Physics and Clinical and Optometric Sciences, Technological University Dublin, Ireland
| | - Patrick J Cullen
- BioPlasma Research Group, School of Food Science and Environmental Health, Technological University Dublin, Ireland; School of Chemical and Biomolecular Engineering, University of Sydney, Australia
| | - James F Curtin
- BioPlasma Research Group, School of Food Science and Environmental Health, Technological University Dublin, Ireland; FOCAS Research Institute, Technological University Dublin, Ireland; Environmental Sustainability and Health Institute, Technological University Dublin, Ireland.
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Hu C, Liu Z, Zhao H, Wu L, Lian Q, Ma D, Li J. A biochemical comparison of the lung, colonic, brain, renal, and ovarian cancer cell lines using 1H-NMR spectroscopy. Biosci Rep 2020; 40:BSR20194027. [PMID: 32266944 PMCID: PMC7198042 DOI: 10.1042/bsr20194027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Revised: 04/02/2020] [Accepted: 04/08/2020] [Indexed: 12/24/2022] Open
Abstract
Cancer cell lines are often used for cancer research. However, continuous genetic instability-induced heterogeneity of cell lines can hinder the reproducibility of cancer research. Molecular profiling approaches including transcriptomics, chromatin modification profiling, and proteomics are used to evaluate the phenotypic characteristics of cell lines. However, these do not reflect the metabolic function at the molecular level. Metabolic phenotyping is a powerful tool to profile the biochemical composition of cell lines. In the present study, 1H-NMR spectroscopy-based metabolic phenotyping was used to detect metabolic differences among five cancer cell lines, namely, lung (A549), colonic (Caco2), brain (H4), renal (RCC), and ovarian (SKOV3) cancer cells. The concentrations of choline, creatine, lactate, alanine, fumarate and succinate varied remarkably among different cell types. The significantly higher intracellular concentrations of glutathione, myo-inositol, and phosphocholine were found in the SKOV3 cell line relative to other cell lines. The concentration of glutamate was higher in both SKOV3 and RCC cells compared with other cell lines. For cell culture media analysis, isopropanol was found to be the highest in RCC media, followed by A549 and SKOV3 media, while acetone was the highest in A549, followed by RCC and SKOV3. These results demonstrated that 1H-NMR-based metabolic phenotyping approach allows us to characterize specific metabolic signatures of cancer cell lines and provides phenotypical information of cellular metabolism.
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Affiliation(s)
- Cong Hu
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
- Division of Anesthetics, Pain Medicine and Intensive Care, Department of Surgery and Cancer, Faculty of Medicine, Chelsea and Westminster Hospital, Imperial College London, United Kingdom
| | - Zhigang Liu
- Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London, United Kingdom
| | - Hailin Zhao
- Division of Anesthetics, Pain Medicine and Intensive Care, Department of Surgery and Cancer, Faculty of Medicine, Chelsea and Westminster Hospital, Imperial College London, United Kingdom
| | - Lingzhi Wu
- Division of Anesthetics, Pain Medicine and Intensive Care, Department of Surgery and Cancer, Faculty of Medicine, Chelsea and Westminster Hospital, Imperial College London, United Kingdom
| | - Qingquan Lian
- Department of Anesthesiology, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Daqing Ma
- Division of Anesthetics, Pain Medicine and Intensive Care, Department of Surgery and Cancer, Faculty of Medicine, Chelsea and Westminster Hospital, Imperial College London, United Kingdom
| | - Jia V. Li
- Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London, United Kingdom
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Long Z, Dai J, Hu Q, Wang Q, Zhen S, Zhao Z, Liu Z, Hu JJ, Lou X, Xia F. Nanococktail Based on AIEgens and Semiconducting Polymers: A Single Laser Excited Image-Guided Dual Photothermal Therapy. Theranostics 2020; 10:2260-2272. [PMID: 32104506 PMCID: PMC7019155 DOI: 10.7150/thno.41317] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2019] [Accepted: 12/09/2019] [Indexed: 12/12/2022] Open
Abstract
Semiconducting polymers (SPs)-based dual photothermal therapy (PTT) obtained better therapeutic effect than single PTT due to its higher photothermal conversion efficiency. However, most dual PTT need to use two lasers for heat generation, which brings about inconvenience and limitation to the experimental operations. Herein, we report the development of "nanococktail" nanomaterials (DTPR) with 808 nm-activated image-guided dual photothermal properties for optimized cancer therapy. Methods: In this work, we co-encapsulated AIEgens (TPA-BDTO, T) and SPs (PDPPP, P) by using maleimide terminated amphiphilic polymer (DSPE-PEG2000-Mal, D), then further conjugated the targeting ligands (RGD, R) through "click" reaction. Finally, such dual PTT nanococktail (termed as DTPR) was constructed. Results: Once DTPR upon irradiation with 808 nm laser, near-infrared fluorescence from T could be partially converted into thermal energy through fluorescence resonance energy transfer (FRET) between T and P, coupling with the original heat energy generated by the photothermal agent P itself, thus resulting in image-guided dual PTT. The photothermal conversion efficiency of DTPR reached 60.3% (dual PTT), much higher as compared to its inherent photothermal effect of only 31.5% (single PTT), which was further proved by the more severe photothermal ablation in vitro and in vivo upon 808 nm laser irradiation. Conclusion: Such smart "nanococktail" nanomaterials could be recognized as a promising photothermal nanotheranostics for image-guided cancer treatment.
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Affiliation(s)
- Zi Long
- Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China
| | - Jun Dai
- Department of Obstetrics and Gynecology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Qinyu Hu
- Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China
| | - Quan Wang
- Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China
| | - Shijie Zhen
- State Key Laboratory of Luminescent Materials and Devices, Center for Aggregation-Induced Emission, South China University of Technology, Guangzhou 510640, China
| | - Zujin Zhao
- State Key Laboratory of Luminescent Materials and Devices, Center for Aggregation-Induced Emission, South China University of Technology, Guangzhou 510640, China
| | - Zitong Liu
- Beijing National Laboratory for Molecular Sciences, Organic Solids Laboratory, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Jing-Jing Hu
- Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China
| | - Xiaoding Lou
- Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China
| | - Fan Xia
- Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China
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Ronen J, Hayat S, Akalin A. Evaluation of colorectal cancer subtypes and cell lines using deep learning. Life Sci Alliance 2019; 2:e201900517. [PMID: 31792061 PMCID: PMC6892438 DOI: 10.26508/lsa.201900517] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Revised: 11/04/2019] [Accepted: 11/05/2019] [Indexed: 01/01/2023] Open
Abstract
Colorectal cancer (CRC) is a common cancer with a high mortality rate and a rising incidence rate in the developed world. Molecular profiling techniques have been used to better understand the variability between tumors and disease models such as cell lines. To maximize the translatability and clinical relevance of in vitro studies, the selection of optimal cancer models is imperative. We have developed a deep learning-based method to measure the similarity between CRC tumors and disease models such as cancer cell lines. Our method efficiently leverages multiomics data sets containing copy number alterations, gene expression, and point mutations and learns latent factors that describe data in lower dimensions. These latent factors represent the patterns that are clinically relevant and explain the variability of molecular profiles across tumors and cell lines. Using these, we propose refined CRC subtypes and provide best-matching cell lines to different subtypes. These findings are relevant to patient stratification and selection of cell lines for early-stage drug discovery pipelines, biomarker discovery, and target identification.
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Affiliation(s)
- Jonathan Ronen
- Max-Delbrück-Centrum für Molekulare Medizin, BIMSB, Berlin, Germany
- Humboldt Universität zu Berlin, Berlin, Germany
| | | | - Altuna Akalin
- Max-Delbrück-Centrum für Molekulare Medizin, BIMSB, Berlin, Germany
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Abstract
BACKGROUND Canine and human osteosarcomas (OS) are notably similar and have a high rate of metastasis. There is a poor understanding of the tumor development process, predisposing causes, and varying levels of aggression among different cell lines. By characterizing newly developed canine osteosarcoma cell lines, treatments for people and pets can be developed. Of the seven subtypes of OS, three are represented in this group: osteoblastic (the most common), fibroblastic, and giant cell variant. To our knowledge, there are no other giant cell variant canine OS cell lines in the published literature and only one canine fibroblastic osteosarcoma cell line. Understanding the differences between the histologic subtypes in dogs will help to guide comparative research. RESULTS Alkaline phosphatase expression was ubiquitous in all cell lines tested and invasiveness was variable between the cell lines tested. Invasiveness and oxidative damage were not correlated with in vivo growth rates, where TOT grew the fastest and had the higher percentage of mice with metastatic lesions. TOL was determined to be the most chemo-resistant during cisplatin chemotherapy while TOM was the most chemo-sensitive. CONCLUSIONS Further comparisons and studies using these cell lines may identify a variety of characteristics valuable for understanding the disease process and developing treatments for osteosarcoma in both species. Some of this data was presented as a poster by KMF at the August 5th, 2017 National Veterinary Scholars Program in Bethesda, MA. Characterization of 5 newly generated canine osteosarcoma cell lines. Kelli Franks, Tasha Miller, Heather Wilson-Robles.
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Affiliation(s)
| | - Kelli Franks
- 660 Raymond Stotzer Pkwy, College Station, TX 77845 USA
| | - Roy Pool
- 660 Raymond Stotzer Pkwy, College Station, TX 77845 USA
| | - Tasha Miller
- 660 Raymond Stotzer Pkwy, College Station, TX 77845 USA
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31
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Ye W, Lin R, Chen X, Chen J, Chen R, Xie X, Deng Y, Wen J. T-2 toxin upregulates the expression of human cytochrome P450 1A1 (CYP1A1) by enhancing NRF1 and Sp1 interaction. Toxicol Lett 2019; 315:77-86. [PMID: 31470059 DOI: 10.1016/j.toxlet.2019.08.021] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2019] [Revised: 08/09/2019] [Accepted: 08/24/2019] [Indexed: 01/11/2023]
Abstract
T-2 toxin is a major pollutant in crops and feedstuffs. Due to its high toxicity in a variety of organisms, T-2 toxin is of great concern as a threat to humans and to animal breeding. Overexpression of CYP1A1 may contribute to carcinogenesis, and CYP1A1 may be a promising target for the prevention and treatment of human malignancies. Therefore, it is essential to understand the regulatory mechanism by which T-2 toxin induces CYP1A1 expression in human cells. In this study, we confirmed that T-2 toxin (100 ng/mL) induced the expression of CYP1A1 in HepG2 cells through NRF1 and Sp1 bound to the promoter instead of through the well-recognized Aromatic hydrocarbon receptors (AhR). In cells treated with T-2 toxin, Sp1, but not NRF1, was significantly upregulated. However, T-2 toxin apparently promoted the interaction between NRF1 and Sp1 proteins, as revealed by IP analysis. Furthermore, in T-2 toxin-treated HepG2 cells, nuclear translocation of NRF1 was enhanced, while knockdown of Sp1 ablated NRF1 nuclear enrichment. Our results revealed that the upregulation of CYP1A1 by T-2 toxin in HepG2 cells depended on enhanced interaction between Sp1 and NRF1. This finding suggests the tumorigenic features of T-2 toxin might be related to the CYP1A1, which provides new insights to understand the toxicological effect of T-2 toxin.
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Affiliation(s)
- Wenchu Ye
- Guangdong Provincial Key Laboratory of Protein Function and Regulation in Agricultural Organisms, College of Life Sciences, South China Agricultural University, Tianhe District, Guangzhou, Guangdong 510642, PR China; Key Laboratory of Zoonosis of Ministry of Agriculture and Rural Affairs, South China Agricultural University, Guangzhou, Guangdong, 510642, PR China
| | - Ruqin Lin
- Guangdong Provincial Key Laboratory of Protein Function and Regulation in Agricultural Organisms, College of Life Sciences, South China Agricultural University, Tianhe District, Guangzhou, Guangdong 510642, PR China; Key Laboratory of Zoonosis of Ministry of Agriculture and Rural Affairs, South China Agricultural University, Guangzhou, Guangdong, 510642, PR China
| | - Xiaoxuan Chen
- Guangdong Provincial Key Laboratory of Protein Function and Regulation in Agricultural Organisms, College of Life Sciences, South China Agricultural University, Tianhe District, Guangzhou, Guangdong 510642, PR China; Key Laboratory of Zoonosis of Ministry of Agriculture and Rural Affairs, South China Agricultural University, Guangzhou, Guangdong, 510642, PR China
| | - Jiongjie Chen
- Guangdong Provincial Key Laboratory of Protein Function and Regulation in Agricultural Organisms, College of Life Sciences, South China Agricultural University, Tianhe District, Guangzhou, Guangdong 510642, PR China; Key Laboratory of Zoonosis of Ministry of Agriculture and Rural Affairs, South China Agricultural University, Guangzhou, Guangdong, 510642, PR China
| | - Ruohong Chen
- Guangdong Provincial Key Laboratory of Protein Function and Regulation in Agricultural Organisms, College of Life Sciences, South China Agricultural University, Tianhe District, Guangzhou, Guangdong 510642, PR China; Key Laboratory of Zoonosis of Ministry of Agriculture and Rural Affairs, South China Agricultural University, Guangzhou, Guangdong, 510642, PR China
| | - Xuan Xie
- Guangdong Provincial Key Laboratory of Protein Function and Regulation in Agricultural Organisms, College of Life Sciences, South China Agricultural University, Tianhe District, Guangzhou, Guangdong 510642, PR China; Key Laboratory of Zoonosis of Ministry of Agriculture and Rural Affairs, South China Agricultural University, Guangzhou, Guangdong, 510642, PR China
| | - Yiqun Deng
- Guangdong Provincial Key Laboratory of Protein Function and Regulation in Agricultural Organisms, College of Life Sciences, South China Agricultural University, Tianhe District, Guangzhou, Guangdong 510642, PR China; Key Laboratory of Zoonosis of Ministry of Agriculture and Rural Affairs, South China Agricultural University, Guangzhou, Guangdong, 510642, PR China.
| | - Jikai Wen
- Guangdong Provincial Key Laboratory of Protein Function and Regulation in Agricultural Organisms, College of Life Sciences, South China Agricultural University, Tianhe District, Guangzhou, Guangdong 510642, PR China; Key Laboratory of Zoonosis of Ministry of Agriculture and Rural Affairs, South China Agricultural University, Guangzhou, Guangdong, 510642, PR China.
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32
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Fukuchi H, Hayashida Y, Inoue K, Sadamura Y. Forkhead box B2 inhibits the malignant characteristics of the pancreatic cancer cell line Panc-1 in vitro. Genes Cells 2019; 24:674-681. [PMID: 31433897 DOI: 10.1111/gtc.12717] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2019] [Revised: 08/09/2019] [Accepted: 08/19/2019] [Indexed: 01/10/2023]
Abstract
Forkhead box (FOX) proteins constitute a family of transcription factors that are evolutionarily conserved in various species ranging from yeast to humans. These proteins have functions during development as well as in adulthood. To date, many reports have described the functions of FOX family genes in cancer cells, but the role of FOXB2 is not well understood. In one of the pancreas ductal adenocarcinoma cell lines, Panc-1 cells, we showed here that FOXB2 expression is barely detectable and that CpG islands in the 5' regions of the FOXB2 are highly methylated. These findings led us to hypothesize that FOXB2 acts as a tumor suppressor. To clarify our hypotheses, we investigated the effects of FOXB2 over-expression in Panc-1 cells. We obtained FOXB2 stable transfectants, and these clones exhibited reduced spheroid formation ability. Expression of β-catenin, which is reported to be over-expressed in various cancer cells, was highly suppressed in FOXB2 stable transfectants. Moreover, side population (SP) cell fractions, which have a high tumorigenesis and metastatic potential, as well as anchorage-independent growth ability, were reduced. These results suggest that FOXB2 has the ability to inhibit the malignant characteristics of Panc-1 in vitro.
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Affiliation(s)
- Hiroki Fukuchi
- Life Science Research Laboratories, FUJIFILM Wako Pure Chemical Corporation, Amagasaki, Japan
- Department of Biology, Graduate School of Science, Kobe University, Kobe, Japan
| | - Yukinobu Hayashida
- Life Science Research Laboratories, FUJIFILM Wako Pure Chemical Corporation, Amagasaki, Japan
| | - Kunio Inoue
- Department of Biology, Graduate School of Science, Kobe University, Kobe, Japan
| | - Yoshifusa Sadamura
- Life Science Research Laboratories, FUJIFILM Wako Pure Chemical Corporation, Amagasaki, Japan
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Mohammad J, Singh RR, Riggle C, Haugrud B, Abdalla MY, Reindl KM. JNK inhibition blocks piperlongumine-induced cell death and transcriptional activation of heme oxygenase-1 in pancreatic cancer cells. Apoptosis 2019; 24:730-744. [PMID: 31243599 PMCID: PMC6713602 DOI: 10.1007/s10495-019-01553-9] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Piperlongumine (PL) is an alkaloid that inhibits glutathione S-transferase pi 1 (GSTP1) activity, resulting in elevated reactive oxygen species (ROS) levels and cancer-selective cell death. We aimed to identify stress-associated molecular responses to PL treatment in pancreatic ductal adenocarcinoma (PDAC) cells. GSTP1 directly interacts with JNK, which is activated by oxidative stress and can lead to decreased cancer cell proliferation and cell death. Therefore, we hypothesized that JNK pathways are activated in response to PL treatment. Our results show PL causes dissociation of GSTP1 from JNK; robust JNK, c-Jun, and early ERK activation followed by suppression; increased expression of cleaved caspase-3 and cleaved PARP; and nuclear translocation of Nrf2 and c-Myc in PDAC cells. Gene expression analysis revealed PL caused a > 20-fold induction of heme oxygenase-1 (HO-1), which we hypothesized was a survival mechanism for PDAC cells under enhanced oxidative stress. HO-1 knockout resulted in enhanced PL-induced PDAC cell death under hypoxic conditions. Similarly, high concentrations of the HO-1 inhibitor, ZnPP (10 µM), sensitized PDAC cells to PL; however, lower concentrations ZnPP (10 nM) and high or low concentrations of SnPP both protected PDAC cells from PL-induced cell death. Interestingly, the JNK inhibitor significantly blocked PL-induced PDAC cell death, Nrf-2 nuclear translocation, and HMOX-1 mRNA expression. Collectively, the results demonstrate JNK signaling contributes to PL-induced PDAC cell death, and at the same time, activates Nrf-2 transcription of HMOX-1 as a compensatory survival mechanism. These results suggest that elevating oxidative stress (using PL) while at the same time impairing antioxidant capacity (inhibiting HO-1) may be an effective therapeutic approach for PDAC.
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Affiliation(s)
- Jiyan Mohammad
- Department of Biological Sciences, North Dakota State University, Fargo, ND, 58108, USA
| | - Rahul R Singh
- Department of Biological Sciences, North Dakota State University, Fargo, ND, 58108, USA
| | - Cody Riggle
- Department of Biological Sciences, North Dakota State University, Fargo, ND, 58108, USA
| | - Brandon Haugrud
- Department of Biological Sciences, North Dakota State University, Fargo, ND, 58108, USA
| | - Maher Y Abdalla
- Department of Pathology and Microbiology, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Katie M Reindl
- Department of Biological Sciences, North Dakota State University, Fargo, ND, 58108, USA.
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Abstract
OBJECTIVE FoxO3a is a well-defined tumor suppressor gene in the forkhead transcription factor O subfamily (FoxO), and its reduction is related to the occurrence of various tumors. It was found that miR-223 expression is abnormally elevated in pancreatic cancer tissues. Bioinformatics analysis revealed a targeted complementary binding relationship between miR-223 and FoxO3a. This study explored whether miR-155 regulates the expression of FoxO3a and affects the proliferation, apoptosis, and cisplatin (CDDP) resistance of oral cancer cells. MATERIALS AND METHODS Dual-Luciferase reporter gene assay validated the targeted relationship between miR-223 and FoxO3a. The CDDP-resistant pancreatic cancer cell line BXPC3/CDDP was established, and the expressions of miR-223 and FoxO3a were compared. BXPC3/CDDP cells were divided into miR-NC group and miR-223 inhibitor group. QRT-PCR was adopted to test miR-223 and FoxO3a mRNA expressions. Western blot was performed to determine FoxO3a protein expression. Cell apoptosis was detected by flow cytometry and cell proliferation was detected by EdU staining. RESULTS There was a targeted regulatory relationship between miR-223 and FoxO3a mRNA. The expression of miR-223 was significantly higher, while the expression of FoxO3a mRNA and protein was significantly lower in BXPC3/CDDP cells than that in BXPC3 cells. Cell Counting Kit-8 (CCK-8) experiments showed that the same concentration of CDDP exhibited significantly lower proliferation inhibition in BXPC3/CDDP cells than BXPC3 cells. Compared with miR-NC group, transfection of miR-223 inhibitor significantly increased the expression of FoxO3a in BXPC3/CDDP cells, which significantly attenuated cell proliferation and enhanced apoptosis in CDDP-treated cells. CONCLUSIONS Increased expression of miR-233 was associated with CDDP resistance in pancreatic cancer cells. Inhibition of miR-223 expression upregulated FoxO3a expression, restrained pancreatic cancer cell proliferation, promoted cell apoptosis, and enhanced CDDP sensitivity in pancreatic cancer cells.
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Affiliation(s)
- R Huang
- Center for Clinical Laboratory, People's Hospital of Xinjiang Uygur Autonomous Region, Urumqi, Xinjiang Uygur Autonomous Region, China.
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Cao YP, Pan M, Song YL, Zhang HL, Sui HT, Shan BC, Piao HX. MiR-302 a/b/c suppresses tumor angiogenesis in hepatocellular carcinoma by targeting MACC1. Eur Rev Med Pharmacol Sci 2019; 23:7863-7873. [PMID: 31599411 DOI: 10.26355/eurrev_201909_18996] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE Hepatocellular carcinoma (HCC) is a hypervascularized tumor. Aberrant angiogenesis is the main cause, which results in cancer growth and progression. It has been showed that microRNA-302 cluster (miR-302) may be associated with angiogenesis. Here, we aimed to identify the role of miR-302a/b/c in the regulation of cell angiogenesis in HCC. PATIENTS AND METHODS MRNA expression of miR-302a/b/c and MACC1 was detected by quantitative Real Time-Polymerase Chain Reaction (qRT-PCR). The protein of MACC1 was measured using Western blot. Cells proliferation, migration, and invasion abilities were investigated via Cell Counting Kit-8 (CCK-8) assay or transwell assay, respectively. Tube formatting assays were used to explore the tube formation capacity. The interaction among miR-302a/b/c was analyzed by luciferase assay. RESULTS The expression of miR-302a/b/c was greatly reduced while MACC1 expression, whether mRNA or protein was conspicuously elevated in HCC tissues and cells. Then, functional experiment results showed miR-302a/b/c overexpression and MACC1 down-regulation inhibited the proliferation, migration, invasion ability, and tube formation capacity of HUVECs. In addition, we detected that miR-302a/b/c directly targeted MACC1 and suppressed MACC1 expression, and miR-302a/b/c could suppress tumor angiogenesis in HCC by targeting MACC1. CONCLUSIONS MiR-302a/b/c may function as a potential suppressor of tumor angiogenesis in HCC by targeting MACC1, indicating a promising target for HCC therapy.
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Affiliation(s)
- Y-P Cao
- Department of Internal Medicine, Yanbian University, Yanji, Jilin, China.
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Gao W, Lu YX, Wang F, Sun J, Bian JX, Wu HY. miRNA-217 inhibits proliferation of hepatocellular carcinoma cells by regulating KLF5. Eur Rev Med Pharmacol Sci 2019; 23:7874-7883. [PMID: 31599412 DOI: 10.26355/eurrev_201909_18997] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE The aim of this study was to figure out the effect of microRNA-217 on the proliferation of hepatocellular carcinoma (HCC) cells, and to explore its influence on KLF5 expression and the underlying regulatory mechanisms. PATIENTS AND METHODS Quantitative Real Time-Polymerase Chain Reaction (qRT-PCR) was used to detect the expression of microRNA-217 in tumor tissues and paracancerous tissues of 60 patients with HCC. Meanwhile, the relationship between microRNA-217 expression and HCC pathological parameters was analyzed. In HCC cell lines, including HepG2 and Bel-7402, negative control group (NC) and microRNA-217 overexpression group were set up, and qRT-PCR was performed to further verify their transfection efficiency. In addition, Cell Counting Kit-8 (CCK-8), 5-Ethynyl-2'-deoxyuridine (EdU) assay were performed to analyze the effect of microRNA-217 on the biological function of HCC cells. Finally, the potential mechanism of KLF5, the downstream gene of microRNA-217, was explored using bioinformatics analysis and cell recovery experiments. RESULTS QRT-PCR results showed that microRNA-217 level in tumor tissues of HCC patients was conspicuously lower than that in adjacent tissues, and the difference was statistically significant. Compared with patients with high expression of microRNA-217, the pathological stage was higher and the overall survival rate was lower in patients with low expression. Compared with the NC group, the cell proliferation ability of the microRNA-217 mimics group was conspicuously decreased. Subsequently, in the HCC cell line and tissue verification, the expression of KLF5 was found remarkably increased, and microRNA-217 exhibited a negative correlation with KLF5 level. In addition, the overexpression of microRNA-217 conspicuously reduced the protein expression of CD31, Ki-67, c-Myc, MMP-2, and MMP-9. In cell recovery experiment, it was found that the overexpression of KLF5 could counteract the effect of microRNA-217 mimics on the cell proliferation of HCC, thereby inhibiting the malignant progression of this disease. CONCLUSIONS The above studies demonstrated that microRNA-217 was markedly associated with the pathological stage and poor prognosis of HCC, and could inhibit the malignant progression of this disease. In addition, our investigation has showed that microRNA-217 might be capable of inhibiting cell proliferation of HCC via regulating KLF5.
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Affiliation(s)
- W Gao
- School of Nursing, Jiangsu Vocational College of Medicine, Yancheng, China.
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Lee J, Kim S, Kim HM, Kim HJ, Yu FH. NaV1.6 and NaV1.7 channels are major endogenous voltage-gated sodium channels in ND7/23 cells. PLoS One 2019; 14:e0221156. [PMID: 31419255 PMCID: PMC6697327 DOI: 10.1371/journal.pone.0221156] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Accepted: 07/31/2019] [Indexed: 01/02/2023] Open
Abstract
ND7/23 cells are gaining traction as a host model to express peripheral sodium channels such as NaV1.8 and NaV1.9 that have been difficult to express in widely utilized heterologous cells, like CHO and HEK293. Use of ND7/23 as a model cell to characterize the properties of sodium channels requires clear understanding of the endogenous ion channels. To define the nature of the background sodium currents in ND7/23 cells, we aimed to comprehensively profile the voltage-gated sodium channel subunits by endpoint and quantitative reverse transcription-PCR and by whole-cell patch clamp electrophysiology. We found that untransfected ND7/23 cells express endogenous peak sodium currents that average -2.12nA (n = 15) and with kinetics typical of fast sodium currents having activation and inactivation completed within few milliseconds. Furthermore, sodium currents were reduced to virtually nil upon exposure to 100nM tetrodotoxin, indicating that ND7/23 cells have essentially null background for tetrodotoxin-resistant (TTX-R) currents. qRT-PCR profiling indicated a major expression of TTX-sensitive (TTX-S) NaV1.6 and NaV1.7 at similar levels and very low expression of TTX-R NaV1.9 transcripts. There was no expression of TTX-R NaV1.8 in ND7/23 cells. There was low expression of NaV1.1, NaV1.2, NaV1.3 and no expression of cardiac or skeletal muscle sodium channels. As for the sodium channel auxiliary subunits, β1 and β3 subunits were expressed, but not the β2 and β4 subunits that covalently associate with the α-subunits. In addition, our results also showed that only the mouse forms of NaV1.6, NaV1.7 and NaV1.9 sodium channels were expressed in ND7/23 cells that was originally generated as a hybridoma of rat embryonic DRG and mouse neuroblastoma cell-line. By molecular profiling of auxiliary β- and principal α-subunits of the voltage gated sodium channel complex, our results define the background sodium channels expressed in ND7/23 cells, and confirm their utility for detailed functional studies of emerging pain channelopathies ascribed to mutations of the TTX-R sodium channels of sensory neurons.
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Affiliation(s)
- Jisoo Lee
- Department of Pharmacology and Dental Therapeutics, Program in Neurobiology, Dental Research Institute, Seoul National University School of Dentistry, Seoul, Republic of Korea
| | - Shinae Kim
- Department of Pharmacology and Dental Therapeutics, Program in Neurobiology, Dental Research Institute, Seoul National University School of Dentistry, Seoul, Republic of Korea
| | - Hye-mi Kim
- Department of Pharmacology and Dental Therapeutics, Program in Neurobiology, Dental Research Institute, Seoul National University School of Dentistry, Seoul, Republic of Korea
| | - Hyun Jeong Kim
- Department of Dental Anesthesiology, Program in Neurobiology, Dental Research Institute, Seoul National University School of Dentistry, Seoul, Republic of Korea
| | - Frank H. Yu
- Department of Pharmacology and Dental Therapeutics, Program in Neurobiology, Dental Research Institute, Seoul National University School of Dentistry, Seoul, Republic of Korea
- * E-mail:
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Abstract
BACKGROUND Cancer cells reprogram their metabolism to survive and propagate. Thus, targeting metabolic rewiring in tumors is a promising therapeutic strategy. Genome-wide RNAi and CRISPR screens are powerful tools for identifying genes essential for cancer cell proliferation and survival. Integrating loss-of-function genetic screens with genomics and transcriptomics datasets reveals molecular mechanisms that underlie cancer cell dependence on specific genes; though explaining cell line-specific essentiality of metabolic genes was recently shown to be especially challenging. RESULTS We find that variability in tissue culture medium between cell lines in a genetic screen is a major confounding factor affecting cell line-specific essentiality of metabolic genes-while, quite surprisingly, not being previously accounted for. Additionally, we find that altered expression level of a metabolic gene in a certain cell line is less indicative of its essentiality than for other genes. However, cell line-specific essentiality of metabolic genes is significantly correlated with changes in the expression of neighboring enzymes in the metabolic network. Utilizing a machine learning method that accounts for tissue culture media and functional association between neighboring enzymes, we generated predictive models for cancer cell line-specific dependence on 162 metabolic genes (representing a ~ 2.2-fold increase compared to previous studies). The generated predictive models reveal numerous novel associations between molecular features and cell line-specific dependency on metabolic genes. Specifically, we demonstrate how cancer cell dependence on one-carbon metabolic enzymes is explained based on cancer lineage, oncogenic mutations, and RNA expression of neighboring enzymes. CONCLUSIONS Considering culture media as well as accounting for molecular features of functionally related metabolic enzymes in a metabolic network significantly improves our understanding of cancer cell line-specific dependence on metabolic genes. We expect our approach and predictive models of metabolic gene essentiality to be a useful tool for investigating metabolic abnormalities in cancer.
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Affiliation(s)
| | | | - Tomer Shlomi
- Faculty of Computer Science, Technion, Haifa, Israel.
- Faculty of Biology, Technion, Haifa, Israel.
- Lokey Center for Life Science and Engineering, Technion, Haifa, Israel.
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Silva TM, Moretto FCF, Sibio MTD, Gonçalves BM, Oliveira M, Olimpio RMC, Oliveira DAM, Costa SMB, Deprá IC, Namba V, Nunes MT, Nogueira CR. Triiodothyronine (T3) upregulates the expression of proto-oncogene TGFA independent of MAPK/ERK pathway activation in the human breast adenocarcinoma cell line, MCF7. Arch Endocrinol Metab 2019; 63:142-147. [PMID: 30916164 PMCID: PMC10522138 DOI: 10.20945/2359-3997000000114] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2018] [Accepted: 12/12/2018] [Indexed: 11/23/2022]
Abstract
OBJECTIVE To verify the physiological action of triiodothyronine T3 on the expression of transforming growth factor α (TGFA) mRNA in MCF7 cells by inhibition of RNA Polymerase II and the MAPK/ERK pathway. MATERIALS AND METHODS The cell line was treated with T3 at a physiological dose (10-9M) for 10 minutes, 1 and 4 hour (h) in the presence or absence of the inhibitors, α-amanitin (RNA polymerase II inhibitor) and PD98059 (MAPK/ERK pathway inhibitor). TGFA mRNA expression was analyzed by RT-PCR. For data analysis, we used ANOVA, complemented with the Tukey test and Student t-test, with a minimum significance of 5%. RESULTS T3 increases the expression of TGFA mRNA in MCF7 cells in 4 h of treatment. Inhibition of RNA polymerase II modulates the effect of T3 treatment on the expression of TGFA in MCF7 cells. Activation of the MAPK/ERK pathway is not required for T3 to affect the expression of TGFA mRNA. CONCLUSION Treatment with a physiological concentration of T3 after RNA polymerase II inhibition altered the expression of TGFA. Inhibition of the MAPK/ERK pathway after T3 treatment does not interfere with the TGFA gene expression in a breast adenocarcinoma cell line.
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Affiliation(s)
- Tabata M. Silva
- Universidade Estadual PaulistaUniversidade Estadual PaulistaFaculdade de Medicina de BotucatuDepartamento de Medicina InternaBotucatuSPBrasilDepartamento de Medicina Interna, Faculdade de Medicina de Botucatu, Universidade Estadual Paulista (UNESP), Botucatu, SP, Brasil
| | - Fernanda C. F. Moretto
- Universidade Estadual PaulistaUniversidade Estadual PaulistaFaculdade de Medicina de BotucatuDepartamento de Medicina InternaBotucatuSPBrasilDepartamento de Medicina Interna, Faculdade de Medicina de Botucatu, Universidade Estadual Paulista (UNESP), Botucatu, SP, Brasil
| | - Maria T. De Sibio
- Universidade Estadual PaulistaUniversidade Estadual PaulistaFaculdade de Medicina de BotucatuDepartamento de Medicina InternaBotucatuSPBrasilDepartamento de Medicina Interna, Faculdade de Medicina de Botucatu, Universidade Estadual Paulista (UNESP), Botucatu, SP, Brasil
| | - Bianca M. Gonçalves
- Universidade Estadual PaulistaUniversidade Estadual PaulistaFaculdade de Medicina de BotucatuDepartamento de Medicina InternaBotucatuSPBrasilDepartamento de Medicina Interna, Faculdade de Medicina de Botucatu, Universidade Estadual Paulista (UNESP), Botucatu, SP, Brasil
| | - Miriane Oliveira
- Universidade Estadual PaulistaUniversidade Estadual PaulistaFaculdade de Medicina de BotucatuDepartamento de Medicina InternaBotucatuSPBrasilDepartamento de Medicina Interna, Faculdade de Medicina de Botucatu, Universidade Estadual Paulista (UNESP), Botucatu, SP, Brasil
| | - Regiane M. C. Olimpio
- Universidade Estadual PaulistaUniversidade Estadual PaulistaFaculdade de Medicina de BotucatuDepartamento de Medicina InternaBotucatuSPBrasilDepartamento de Medicina Interna, Faculdade de Medicina de Botucatu, Universidade Estadual Paulista (UNESP), Botucatu, SP, Brasil
| | - Diego A. M. Oliveira
- Universidade Estadual PaulistaUniversidade Estadual PaulistaBotucatuSPBrasilUniversidade Estadual Paulista (UNESP), Botucatu, SP, Brasil
| | - Sarah M. B. Costa
- Universidade Estadual PaulistaUniversidade Estadual PaulistaFaculdade de Medicina de BotucatuDepartamento de Medicina InternaBotucatuSPBrasilDepartamento de Medicina Interna, Faculdade de Medicina de Botucatu, Universidade Estadual Paulista (UNESP), Botucatu, SP, Brasil
| | - Igor C. Deprá
- Universidade Estadual PaulistaUniversidade Estadual PaulistaFaculdade de Medicina de BotucatuDepartamento de Medicina InternaBotucatuSPBrasilDepartamento de Medicina Interna, Faculdade de Medicina de Botucatu, Universidade Estadual Paulista (UNESP), Botucatu, SP, Brasil
| | - Vickeline Namba
- Universidade Estadual PaulistaUniversidade Estadual PaulistaFaculdade de Medicina de BotucatuDepartamento de Medicina InternaBotucatuSPBrasilDepartamento de Medicina Interna, Faculdade de Medicina de Botucatu, Universidade Estadual Paulista (UNESP), Botucatu, SP, Brasil
| | - Maria T. Nunes
- Universidade de São PauloUniversidade de São PauloInstituto de Ciências BiomédicasDepartamento de Fisiologia e BiofísicaSão PauloSPBrasilDepartamento de Fisiologia e Biofísica, Instituto de Ciências Biomédicas, Universidade de São Paulo (USP), São Paulo, SP, Brasil
| | - Célia R. Nogueira
- Universidade Estadual PaulistaUniversidade Estadual PaulistaFaculdade de Medicina de BotucatuDepartamento de Medicina InternaBotucatuSPBrasilDepartamento de Medicina Interna, Faculdade de Medicina de Botucatu, Universidade Estadual Paulista (UNESP), Botucatu, SP, Brasil
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Shang Y, Liu M, Wang T, Wang L, He H, Zhong Y, Qian G, An J, Zhu T, Qiu X, Shang J, Chen Y. Modifications of autophagy influenced the Alzheimer-like changes in SH-SY5Y cells promoted by ultrafine black carbon. Environ Pollut 2019; 246:763-771. [PMID: 30623832 DOI: 10.1016/j.envpol.2018.12.080] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2018] [Revised: 12/18/2018] [Accepted: 12/25/2018] [Indexed: 06/09/2023]
Abstract
Ambient ultrafine black carbon (uBC) can potentially cross blood-brain barrier, however, very little is currently known about the effects they may have on central nervous system. This study aimed to explore the roles of autophagy in Alzheimer-like pathogenic changes promoted by uBC in SH-SY5Y cells. We firstly found uBC could cause cytotoxicity and oxidative stress in SH-SY5Y cells. Additionally we found uBC initiated progressive development of Alzheimer's disease (AD) associated features, mainly including neuro-inflammation and phosphorylation of tau protein (p-Tau) accumulation. Meanwhile, autophagy process was activated by uBC probably through phosphatidylinositol 3-kinase/protein kinase B (PI3K/Akt) pathway. RNA interference and autophagosome-lysosome fusion inhibitor were applied to block autophagy process at different stages. Autophagy dysfunction at the initial membrane expansion stage could aggravate p-Tau accumulation and other Alzheimer-like changes in SH-SY5Y cells promoted by uBC. However, autophagy inhibition at the final stage could alleviate p-Tau accumulation caused by uBC. This suggested that inhibition of the infusion of autophagosome and lysosome could possibly activate ubiquitination degradation pathway to regulate p-Tau equilibrium in SH-SY5Y cells. Our findings further raise the concerns about the effects of uBC on the risk of AD and indicate potential roles of autophagy in early Alzheimer-like pathogenic changes caused by ambient uBC.
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Affiliation(s)
- Yu Shang
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, China
| | - Mingyuan Liu
- Department of Neurology, Yueyang Hospital of Integrated Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200437, China
| | - Tiantian Wang
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, China
| | - Lu Wang
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, China
| | - Huixin He
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, China
| | - Yufang Zhong
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, China
| | - Guangren Qian
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, China
| | - Jing An
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, China.
| | - Tong Zhu
- BIC-ESAT and SKL-ESPC, College of Environmental Sciences and Engineering, Peking University, Beijing, 100871, China
| | - Xinghua Qiu
- BIC-ESAT and SKL-ESPC, College of Environmental Sciences and Engineering, Peking University, Beijing, 100871, China
| | - Jing Shang
- BIC-ESAT and SKL-ESPC, College of Environmental Sciences and Engineering, Peking University, Beijing, 100871, China
| | - Yingjun Chen
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP3), Department of Environmental Science and Engineering, Fudan University, Shanghai, 200433, China
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Abstract
In leukemia, leukemic cells hijack the hematopoietic stem cell (HSC) microenvironment in the bone marrow-the so-called stem cell niche-by flooding the niche with clonal progeny of leukemic cells. They can exploit signaling pathways which are critical for HSC development to support their own survival, homing, and maintenance. These interactions of leukemic cells with the microenvironment have an impact on therapy progress and patient outcome. Therefore, signals for homing and anchorage of leukemic cells to the bone marrow have to be investigated by using tools that allow the migration of cells toward critical signals. Here, we describe an in vitro migration assay for leukemic cells toward a chemoattractant in a 3D environment exemplified by migration of the cell line OCI-AML3 to a CXC motif chemokine ligand 12 (CXCL12) gradient. For this purpose, a chemotaxis slide is filled with a hydrogel system mimicking the extracellular matrix in vivo. The cells are encapsulated into the hydrogel network during polymerization, and a CXCL12 gradient is introduced in the enclosed chambers to trigger migration. Cell migration in the 3D network of the hydrogel is monitored by time-lapse microscopy. We describe the experimental setup and the tools for cell tracking and data analysis.
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Affiliation(s)
- Sabrina Zippel
- Institute of Functional Interfaces, Karlsruhe Institute of Technology (KIT), Eggenstein-Leopoldshafen, Germany
- Institute of Cell Biology and Biophysics, Leibniz University Hannover, Hannover, Germany
| | - Annamarija Raic
- Institute of Functional Interfaces, Karlsruhe Institute of Technology (KIT), Eggenstein-Leopoldshafen, Germany
- Institute of Cell Biology and Biophysics, Leibniz University Hannover, Hannover, Germany
| | - Cornelia Lee-Thedieck
- Institute of Functional Interfaces, Karlsruhe Institute of Technology (KIT), Eggenstein-Leopoldshafen, Germany.
- Institute of Cell Biology and Biophysics, Leibniz University Hannover, Hannover, Germany.
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Ma R, Zheng G, Shao C, Liu J, Lv H, Zhang G. Downregulation of miR-196b Promotes Glioma Cell Sensitivity to Temozolomide Chemotherapy and Radiotherapy. Ann Clin Lab Sci 2018; 48:719-725. [PMID: 30610041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Human glioma is the most common type of primary brain tumor. The survival rate of people with a malignant glioma is extremely low, primarily due to a lack of effective treatments. We previously reported that miR-196b expression is upregulated in glioblastoma tissues and overexpression of miR-196b is associated with poor prognosis. miR-196b acts as an oncogene by enhancing cellular proliferation and increasing the expression of E2F1, which plays an important role in the PI3K/AKT signaling pathway. In the present study, we explored the effects of miR-196b expression on glioma cells and characterized the relationship between miR-196b expression and the PI3K/AKT signaling pathway. We found that downregulation of miR-196b decreased the proliferation of U87 and U251 glioma cells. When anti-miR-196b and radiotherapy were used together, cellular proliferation decreased, whereas apoptosis and caspase 3/7activity, an indicator of apoptosis, increased. Meanwhile, downregulation of miR-196b remarkably inhibited glioma cell growth and colony formation when concurrent with temozolomide administration. Further studies demonstrated that neither upregulation nor downregulation of miR-196b markedly changed the protein expression levels of downstream molecules in the PI3K/AKT signaling pathway in cellular experiments. Therefore, whether miR-196b plays a role by activating the PI3K/AKT signaling pathway has not yet been determined. Together, our findings indicate that downregulation of miR-196b increased glioma cell sensitivity to temozolomide chemotherapy and radiotherapy and may be a valuable target when treating malignant gliomas. However, further studies are required to accurately characterize the mechanism by which miR-196b elicits its pivotal role.
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Affiliation(s)
- Ruimin Ma
- Laboratory Diagnosis Center, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
- Beijing Engineering Research Center of Immunological Reagents Clinical Research, Beijing, China
| | - Guanghui Zheng
- Laboratory Diagnosis Center, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
- Beijing Engineering Research Center of Immunological Reagents Clinical Research, Beijing, China
| | - Chunqing Shao
- Laboratory Diagnosis Center, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
- Beijing Engineering Research Center of Immunological Reagents Clinical Research, Beijing, China
| | - Jingzheng Liu
- Laboratory Diagnosis Center, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
- Beijing Engineering Research Center of Immunological Reagents Clinical Research, Beijing, China
| | - Hong Lv
- Laboratory Diagnosis Center, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
- Beijing Engineering Research Center of Immunological Reagents Clinical Research, Beijing, China
| | - Guojun Zhang
- Laboratory Diagnosis Center, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
- Beijing Engineering Research Center of Immunological Reagents Clinical Research, Beijing, China
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Gock M, Mullins CS, Harnack C, Prall F, Ramer R, Göder A, Krämer OH, Klar E, Linnebacher M. Establishment, functional and genetic characterization of a colon derived large cell neuroendocrine carcinoma cell line. World J Gastroenterol 2018; 24:3749-3759. [PMID: 30197480 PMCID: PMC6127660 DOI: 10.3748/wjg.v24.i33.3749] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Revised: 06/14/2018] [Accepted: 06/16/2018] [Indexed: 02/06/2023] Open
Abstract
AIM To establish cell line and patient-derived xenograft (PDX) models for neuroendocrine carcinomas (NEC) which is highly desirable for gaining insight into tumor development as well as preclinical research including biomarker testing and drug response prediction.
METHODS Cell line establishment was conducted from direct in vitro culturing of colonic NEC tissue (HROC57). A PDX could also successfully be established from vitally frozen tumor samples. Morphological features, invasive and migratory behavior of the HROC57 cells as well as expression of neuroendocrine markers were vastly analyzed. Phenotypic analysis was done by microscopy and multicolor flow cytometry. The extensive molecular-pathological profiling included mutation analysis, assessment of chromosomal and microsatellite instability; and in addition, fingerprinting (i.e., STR analysis) was performed from the cell line in direct comparison to primary patient-derived tissues and the PDX model established. Drug responsiveness was examined for a panel of chemotherapeutics in clinical use for the treatment of solid cancers.
RESULTS The established cell line HROC57 showed distinct morphological and molecular features of a poorly differentiated large-cell NEC with KI-67 > 50%. Molecular-pathological analysis revealed a CpG island promoter methylation positive cell line with microsatellite instability being absent. The following mutation profile was observed: KRAS (wt), BRAF (mut). A high sensitivity to etoposide, cisplatin and 5-FU could be demonstrated while it was more resistant towards rapamycin.
CONCLUSION We successfully established and characterized a novel patient-derived NEC cell line in parallel to a PDX model as a useful tool for further analysis of the biological characteristics and for development of novel diagnostic and therapeutic options for NEC.
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MESH Headings
- Adult
- Animals
- Antineoplastic Agents/pharmacology
- Biomarkers, Tumor/genetics
- Biomarkers, Tumor/metabolism
- Carcinoma, Large Cell/genetics
- Carcinoma, Large Cell/pathology
- Carcinoma, Large Cell/surgery
- Carcinoma, Neuroendocrine/genetics
- Carcinoma, Neuroendocrine/pathology
- Carcinoma, Neuroendocrine/surgery
- Cell Culture Techniques/methods
- Cell Line, Tumor/drug effects
- Cell Line, Tumor/metabolism
- Cell Line, Tumor/pathology
- Cell Movement/genetics
- Colon/pathology
- Colon/surgery
- CpG Islands/genetics
- DNA Fingerprinting
- DNA Methylation/genetics
- DNA Mutational Analysis
- Drug Resistance, Neoplasm/genetics
- Female
- Flow Cytometry
- Humans
- Mice
- Mice, Nude
- Mutation
- Neoplasm Invasiveness/genetics
- Neoplasm Invasiveness/pathology
- Primary Cell Culture
- Xenograft Model Antitumor Assays
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Affiliation(s)
- Michael Gock
- Department of General Surgery, University of Rostock, Rostock 18055, Germany
| | - Christina S Mullins
- Department of General Surgery, Section of Molecular Oncology and Immunotherapy, University of Rostock, Rostock 18055, Germany
| | - Christine Harnack
- Department of General Surgery, Section of Molecular Oncology and Immunotherapy, University of Rostock, Rostock 18055, Germany
| | - Friedrich Prall
- Institute of Pathology, University of Rostock, Rostock 18055, Germany
| | - Robert Ramer
- Institute of Pharmacology, University of Rostock, Rostock 18055, Germany
| | - Anja Göder
- Institute of Toxicology, University Medical Center Mainz, Mainz 55131, Germany
| | - Oliver H Krämer
- Institute of Toxicology, University Medical Center Mainz, Mainz 55131, Germany
| | - Ernst Klar
- Department of General Surgery, University of Rostock, Rostock 18055, Germany
| | - Michael Linnebacher
- Department of General Surgery, Section of Molecular Oncology and Immunotherapy, University of Rostock, Rostock 18055, Germany
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Xiong X, Li Y, Liu L, Qi K, Zhang C, Chen Y, Fang J. Arsenic trioxide induces cell cycle arrest and affects Trk receptor expression in human neuroblastoma SK-N-SH cells. Biol Res 2018; 51:18. [PMID: 29898774 PMCID: PMC5998579 DOI: 10.1186/s40659-018-0167-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Accepted: 06/06/2018] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND Arsenic trioxide (As2O3), a drug that has been used in China for approximately two thousand years, induces cell death in a variety of cancer cell types, including neuroblastoma (NB). The tyrosine kinase receptor (Trk) family comprises three members, namely TrkA, TrkB and TrkC. Various studies have confirmed that TrkA and TrkC expression is associated with a good prognosis in NB, while TrkB overexpression can lead to tumor cell growth and invasive metastasis. Previous studies have shown that As2O3 can inhibit the growth and proliferation of a human NB cell line and can also affect the N-Myc mRNA expression. It remains unclear whether As2O3 regulates Trks for the purposes of treating NB. METHODS The aim of the present study was to investigate the effect of As2O3 on Trk expression in NB cell lines and its potential therapeutic efficacy. SK-N-SH cells were grown with increasing doses of As2O3 at different time points. We cultured SK-N-SH cells, which were treated with increasing doses of As2O3 at different time points. Trk expression in the NB samples was quantified by immunohistochemistry, and the cell cycle was analyzed by flow cytometry. TrkA, TrkB and TrkC mRNA expression was evaluated by real-time PCR analysis. RESULTS Immunohistochemical and real-time PCR analyses indicated that TrkA and TrkC were over-expressed in NB, and specifically during stages 1, 2 and 4S of the disease progression. TrkB expression was increased in stage 3 and 4 NB. As2O3 significantly arrested SK-N-SH cells in the G2/M phase. In addition, TrkA, TrkB and TrkC expression levels were significantly upregulated by higher concentrations of As2O3 treatment, notably in the 48-h treatment period. Our findings suggested that to achieve the maximum effect and appropriate regulation of Trk expression in NB stages 1, 2 and 4S, As2O3 treatment should be at relatively higher concentrations for longer delivery times;however, for NB stages 3 and 4, an appropriate concentration and infusion time for As2O3 must be carefully determined. CONCLUSION The present findings suggested that As2O3 induced Trk expression in SK-N-SH cells to varying degrees and may be a promising adjuvant to current treatments for NB due to its apoptotic effects.
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Affiliation(s)
- Xilin Xiong
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, 510120 China
- Pediatric Hematology/Oncology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, 510120 China
| | - Yang Li
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, 510120 China
- Pediatric Hematology/Oncology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, 510120 China
| | - Ling Liu
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, 510120 China
- Department of Pediatric Hematology/Oncology, Affiliated Hospital of Guangdong Medical College, Zhanjiang, 524000 Guangdong China
| | - Kai Qi
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, 510120 China
- Pediatric Hematology/Oncology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, 510120 China
| | - Chi Zhang
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, 510120 China
- Pediatric Hematology/Oncology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, 510120 China
| | - Yueqin Chen
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, 510120 China
- Department of Life Sciences, Sun Yat-Sen University, Guangzhou, 510120 Guangdong China
| | - Jianpei Fang
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, 510120 China
- Pediatric Hematology/Oncology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, 510120 China
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Shu Y, Ye W, Gu YL, Sun P. Blockade of miR-663b inhibits cell proliferation and induces apoptosis in osteosarcoma via regulating TP73 expression. ACTA ACUST UNITED AC 2018; 119:41-46. [PMID: 29405730 DOI: 10.4149/bll_2018_009] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
OBJECTIVE This study aimed to investigate the exact role of miR-663b in osteosarcoma (OS) progression and further explore the underlying molecular mechanisms. MATERIALS AND METHODS The miR-663b expression in human OS cell lines was determined by qRT-PCR, and the results suggested that miR-663b was highly expressed in human OS cells. TargetScan was used to predict the potential targets of miR-663b, and the prediction was confirmed by dual-luciferase reporter assay. To investigate the role of miR-663b in OS, miR-663b was down-regulated in U2OS cells using miR-663b inhibitor. CCK8 and flow cytometry were preformed to investigate the proliferation and apoptosis of U2OS cells. Moreover, qRT-PCR and western blot analysis were performed to measure the mRNA and protein expression. RESULTS We found that miR-663b directly targets TP73 and negatively regulates TP73 expression. MiR-663b inhibitor significantly decreased the proliferation ability of U2OS cells, while the percentage of apoptotic cells was markedly increased. The level of Bcl-2 was notably inhibited by miR-663b inhibitor, while Bax expression was significantly enhanced. Moreover, miR-663b down-regulation promoted p53 and p21 expression in U2OS cells. CONCLUSIONS MiR-663b down-regulation represses proliferation and induces apoptosis in OS by targeting TP73. Therefore, we provide a potential therapeutic target for OS treatment (Fig. 6, Ref. 27).
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Viganó C, von Schubert C, Ahrné E, Schmidt A, Lorber T, Bubendorf L, De Vetter JRF, Zaman GJR, Storchova Z, Nigg EA. Quantitative proteomic and phosphoproteomic comparison of human colon cancer DLD-1 cells differing in ploidy and chromosome stability. Mol Biol Cell 2018; 29:1031-1047. [PMID: 29496963 PMCID: PMC5921571 DOI: 10.1091/mbc.e17-10-0577] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2017] [Revised: 02/15/2018] [Accepted: 02/21/2018] [Indexed: 11/11/2022] Open
Abstract
Although aneuploidy is poorly tolerated during embryogenesis, aneuploidy and whole chromosomal instability (CIN) are common hallmarks of cancer, raising the question of how cancer cells can thrive in spite of chromosome aberrations. Here we present a comprehensive and quantitative proteomics analysis of isogenic DLD-1 colorectal adenocarcinoma cells lines, aimed at identifying cellular responses to changes in ploidy and/or CIN. Specifically, we compared diploid (2N) and tetraploid (4N) cells with posttetraploid aneuploid (PTA) clones and engineered trisomic clones. Our study provides a comparative data set on the proteomes and phosphoproteomes of the above cell lines, comprising several thousand proteins and phosphopeptides. In comparison to the parental 2N line, we observed changes in proteins associated with stress responses and with interferon signaling. Although we did not detect a conspicuous protein signature associated with CIN, we observed many changes in phosphopeptides that relate to fundamental cellular processes, including mitotic progression and spindle function. Most importantly, we found that most changes detectable in PTA cells were already present in the 4N progenitor line. This suggests that activation of mitotic pathways through hyper-phosphorylation likely constitutes an important response to chromosomal burden. In line with this conclusion, cells with extensive chromosome gains showed differential sensitivity toward a number of inhibitors targeting cell cycle kinases, suggesting that the efficacy of anti-mitotic drugs may depend on the karyotype of cancer cells.
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Affiliation(s)
| | | | - Erik Ahrné
- Biozentrum, University of Basel, 4056 Basel, Switzerland
| | | | - Thomas Lorber
- Institute of Pathology, University Hospital Basel, University of Basel, 4056 Basel, Switzerland
| | - Lukas Bubendorf
- Institute of Pathology, University Hospital Basel, University of Basel, 4056 Basel, Switzerland
| | | | - Guido J. R. Zaman
- Netherlands Translational Research Center B.V., 5340 Oss, The Netherlands
| | | | - Erich A. Nigg
- Biozentrum, University of Basel, 4056 Basel, Switzerland
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Pirsko V, Cakstina I, Priedite M, Dortane R, Feldmane L, Nakazawa-Miklasevica M, Daneberga Z, Gardovskis J, Miklasevics E. An Effect of Culture Media on Epithelial Differentiation Markers in Breast Cancer Cell Lines MCF7, MDA-MB-436 and SkBr3. Medicina (Kaunas) 2018; 54:E11. [PMID: 30344242 PMCID: PMC6037242 DOI: 10.3390/medicina54020011] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/21/2018] [Revised: 03/19/2018] [Accepted: 03/27/2018] [Indexed: 12/19/2022]
Abstract
Background and objectives: Cell culture is one of the mainstays in the research of breast cancer biology, although the extent to which this approach allows to preserve the original characteristics of originating tumor and implications of cell culture findings to real life situations have been widely debated in the literature. The aim of this study was to determine the role of three cell culture media on transcriptional expression of breast cancer markers in three breast cancer reference cell lines (MCF7, SkBr3 and MDA-MB-436). Materials and methods: Cell lines were conditioned in three studied media (all containing 5% fetal bovine serum (FBS) + hormones/growth factors; different composition of basal media) for four passages. Population growth was characterized by cumulative population doubling levels, average generation time, cell yield and viability at the fourth passage. Transcriptional expression of breast cancer differentiation markers and regulatory transcriptional programs was measured by qPCR. Results: Differences in the composition of growth media significantly influenced the growth of studied cell lines and the expression of mammary lineage governing transcriptional programs and luminal/basal markers. Effects of media on transcriptional expression were more pronounced in luminal cell lines (MCF7, SkBr3), than in the basal cell line (MDA-MB-436). Changes in growth media in terms of supplementation and basal medium delayed growth of cells, but improved cell yields. Conclusions: The expression of breast cancer cell differentiation phenotypic markers depends on the composition of cell growth medium, therefore cell culture as a tool in phenotypic studies should be used considering this effect. The findings of such studies should always be interpreted with caution. The formulation of cell growth media has greater effect on the expression of phenotypic markers in luminal, rather than basal cell lines. Media containing mitogens and higher vitamin content improved efficacy of cell culture in terms of cell yields, although greatly increased growth times.
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Affiliation(s)
- Valdis Pirsko
- Institute of Oncology, Riga Stradins University, LV1086 Riga, Latvia.
| | - Inese Cakstina
- Institute of Oncology, Riga Stradins University, LV1086 Riga, Latvia.
| | - Marta Priedite
- Institute of Oncology, Riga Stradins University, LV1086 Riga, Latvia.
| | - Rasma Dortane
- Institute of Oncology, Riga Stradins University, LV1086 Riga, Latvia.
| | - Linda Feldmane
- Institute of Oncology, Riga Stradins University, LV1086 Riga, Latvia.
| | | | - Zanda Daneberga
- Institute of Oncology, Riga Stradins University, LV1086 Riga, Latvia.
| | - Janis Gardovskis
- Institute of Oncology, Riga Stradins University, LV1086 Riga, Latvia.
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Maes T, Mascaró C, Tirapu I, Estiarte A, Ciceri F, Lunardi S, Guibourt N, Perdones A, Lufino MMP, Somervaille TCP, Wiseman DH, Duy C, Melnick A, Willekens C, Ortega A, Martinell M, Valls N, Kurz G, Fyfe M, Castro-Palomino JC, Buesa C. ORY-1001, a Potent and Selective Covalent KDM1A Inhibitor, for the Treatment of Acute Leukemia. Cancer Cell 2018; 33:495-511.e12. [PMID: 29502954 DOI: 10.1016/j.ccell.2018.02.002] [Citation(s) in RCA: 187] [Impact Index Per Article: 31.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/19/2017] [Revised: 09/17/2017] [Accepted: 02/01/2018] [Indexed: 01/02/2023]
Abstract
The lysine-specific demethylase KDM1A is a key regulator of stem cell potential in acute myeloid leukemia (AML). ORY-1001 is a highly potent and selective KDM1A inhibitor that induces H3K4me2 accumulation on KDM1A target genes, blast differentiation, and reduction of leukemic stem cell capacity in AML. ORY-1001 exhibits potent synergy with standard-of-care drugs and selective epigenetic inhibitors, reduces growth of an AML xenograft model, and extends survival in a mouse PDX (patient-derived xenograft) model of T cell acute leukemia. Surrogate pharmacodynamic biomarkers developed based on expression changes in leukemia cell lines were translated to samples from patients treated with ORY-1001. ORY-1001 is a selective KDM1A inhibitor in clinical trials and is currently being evaluated in patients with leukemia and solid tumors.
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Affiliation(s)
- Tamara Maes
- Oryzon Genomics, S.A. Carrer Sant Ferran 74, 08940 Cornellà de Llobregat, Spain.
| | - Cristina Mascaró
- Oryzon Genomics, S.A. Carrer Sant Ferran 74, 08940 Cornellà de Llobregat, Spain
| | - Iñigo Tirapu
- Oryzon Genomics, S.A. Carrer Sant Ferran 74, 08940 Cornellà de Llobregat, Spain
| | - Angels Estiarte
- Oryzon Genomics, S.A. Carrer Sant Ferran 74, 08940 Cornellà de Llobregat, Spain
| | - Filippo Ciceri
- Oryzon Genomics, S.A. Carrer Sant Ferran 74, 08940 Cornellà de Llobregat, Spain
| | - Serena Lunardi
- Oryzon Genomics, S.A. Carrer Sant Ferran 74, 08940 Cornellà de Llobregat, Spain
| | - Nathalie Guibourt
- Oryzon Genomics, S.A. Carrer Sant Ferran 74, 08940 Cornellà de Llobregat, Spain
| | - Alvaro Perdones
- Oryzon Genomics, S.A. Carrer Sant Ferran 74, 08940 Cornellà de Llobregat, Spain
| | - Michele M P Lufino
- Oryzon Genomics, S.A. Carrer Sant Ferran 74, 08940 Cornellà de Llobregat, Spain
| | - Tim C P Somervaille
- Leukaemia Biology Laboratory, Cancer Research UK Manchester Institute, The University of Manchester, Manchester M20 4BX, UK
| | - Dan H Wiseman
- Leukaemia Biology Laboratory, Cancer Research UK Manchester Institute, The University of Manchester, Manchester M20 4BX, UK
| | - Cihangir Duy
- Department of Medicine, Division of Hematology & Medical Oncology, Weill Cornell Medicine, New York, 10065 NY, USA
| | - Ari Melnick
- Department of Medicine, Division of Hematology & Medical Oncology, Weill Cornell Medicine, New York, 10065 NY, USA; Department of Pharmacology, Weill Cornell Medicine, New York, 10065 NY, USA
| | - Christophe Willekens
- Drug Development Department (DITEP) and Hematology Department, Gustave Roussy, Université Paris-Saclay, 94805 Villejuif, France
| | - Alberto Ortega
- Oryzon Genomics, S.A. Carrer Sant Ferran 74, 08940 Cornellà de Llobregat, Spain
| | - Marc Martinell
- Oryzon Genomics, S.A. Carrer Sant Ferran 74, 08940 Cornellà de Llobregat, Spain
| | - Nuria Valls
- Oryzon Genomics, S.A. Carrer Sant Ferran 74, 08940 Cornellà de Llobregat, Spain
| | - Guido Kurz
- Oryzon Genomics, S.A. Carrer Sant Ferran 74, 08940 Cornellà de Llobregat, Spain
| | - Matthew Fyfe
- Oryzon Genomics, S.A. Carrer Sant Ferran 74, 08940 Cornellà de Llobregat, Spain
| | | | - Carlos Buesa
- Oryzon Genomics, S.A. Carrer Sant Ferran 74, 08940 Cornellà de Llobregat, Spain
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Wright Muelas M, Ortega F, Breitling R, Bendtsen C, Westerhoff HV. Rational cell culture optimization enhances experimental reproducibility in cancer cells. Sci Rep 2018; 8:3029. [PMID: 29445172 PMCID: PMC5813001 DOI: 10.1038/s41598-018-21050-4] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Accepted: 01/25/2018] [Indexed: 01/14/2023] Open
Abstract
Optimization of experimental conditions is critical in ensuring robust experimental reproducibility. Through detailed metabolomic analysis we found that cell culture conditions significantly impacted on glutaminase (GLS1) sensitivity resulting in variable sensitivity and irreproducibility in data. Baseline metabolite profiling highlighted that untreated cells underwent significant changes in metabolic status. Both the extracellular levels of glutamine and lactate and the intracellular levels of multiple metabolites changed drastically during the assay. We show that these changes compromise the robustness of the assay and make it difficult to reproduce. We discuss the implications of the cells' metabolic environment when studying the effects of perturbations to cell function by any type of inhibitor. We then devised 'metabolically rationalized standard' assay conditions, in which glutaminase-1 inhibition reduced glutamine metabolism differently in both cell lines assayed, and decreased the proliferation of one of them. The adoption of optimized conditions such as the ones described here should lead to an improvement in reproducibility and help eliminate false negatives as well as false positives in these assays.
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Affiliation(s)
- Marina Wright Muelas
- Manchester Centre for Integrative Systems Biology and Doctoral Training Centre, Manchester Institute of Biotechnology, University of Manchester, 131 Princess Street, Manchester, M1 7DN, UK.
- Quantitative Biology, Discovery Sciences, IMED Biotech Unit, AstraZeneca, Cambridge, UK.
- Manchester Institute of Biotechnology, School of Chemistry, Faculty of Science and Engineering, University of Manchester, 131 Princess Street, Manchester, M1 7DN, UK.
| | - Fernando Ortega
- Manchester Pharmacy School, University of Manchester, Stopford Building, Oxford Road, Manchester, M13 9PT, UK
| | - Rainer Breitling
- Manchester Institute of Biotechnology, School of Chemistry, Faculty of Science and Engineering, University of Manchester, 131 Princess Street, Manchester, M1 7DN, UK
| | - Claus Bendtsen
- Quantitative Biology, Discovery Sciences, IMED Biotech Unit, AstraZeneca, Cambridge, UK
| | - Hans V Westerhoff
- Manchester Centre for Integrative Systems Biology and Doctoral Training Centre, Manchester Institute of Biotechnology, University of Manchester, 131 Princess Street, Manchester, M1 7DN, UK
- Netherlands Institute for Systems Biology, VU University Amsterdam and University of Amsterdam, Amsterdam, The Netherlands
- Manchester Institute of Biotechnology, School of Chemistry, Faculty of Science and Engineering, University of Manchester, 131 Princess Street, Manchester, M1 7DN, UK
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50
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Jägle S, Busch H, Freihen V, Beyes S, Schrempp M, Boerries M, Hecht A. SNAIL1-mediated downregulation of FOXA proteins facilitates the inactivation of transcriptional enhancer elements at key epithelial genes in colorectal cancer cells. PLoS Genet 2017; 13:e1007109. [PMID: 29155818 PMCID: PMC5714381 DOI: 10.1371/journal.pgen.1007109] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2016] [Revised: 12/04/2017] [Accepted: 11/08/2017] [Indexed: 01/04/2023] Open
Abstract
Phenotypic conversion of tumor cells through epithelial-mesenchymal transition (EMT) requires massive gene expression changes. How these are brought about is not clear. Here we examined the impact of the EMT master regulator SNAIL1 on the FOXA family of transcription factors which are distinguished by their particular competence to induce chromatin reorganization for the activation of transcriptional enhancer elements. We show that the expression of SNAIL1 and FOXA genes is anticorrelated in transcriptomes of colorectal tumors and cell lines. In cellular EMT models, ectopically expressed Snail1 directly represses FOXA1 and triggers downregulation of all FOXA family members, suggesting that loss of FOXA expression promotes EMT. Indeed, cells with CRISPR/Cas9-induced FOXA-deficiency acquire mesenchymal characteristics. Furthermore, ChIP-seq data analysis of FOXA chromosomal distribution in relation to chromatin structural features which characterize distinct states of transcriptional activity, revealed preferential localization of FOXA factors to transcriptional enhancers at signature genes that distinguish epithelial from mesenchymal colon tumors. To validate the significance of this association, we investigated the impact of FOXA factors on structure and function of enhancers at the CDH1, CDX2 and EPHB3 genes. FOXA-deficiency and expression of dominant negative FOXA2 led to chromatin condensation at these enhancer elements. Site-directed mutagenesis of FOXA binding sites in reporter gene constructs and by genome-editing in situ impaired enhancer activity and completely abolished the active chromatin state of the EPHB3 enhancer. Conversely, expression of FOXA factors in cells with inactive CDX2 and EPHB3 enhancers led to chromatin opening and de novo deposition of the H3K4me1 and H3K27ac marks. These findings establish the pioneer function of FOXA factors at enhancer regions of epithelial genes and demonstrate their essential role in maintaining enhancer structure and function. Thus, by repressing FOXA family members, SNAIL1 targets transcription factors at strategically important positions in gene-regulatory hierarchies, which may facilitate transcriptional reprogramming during EMT. Cancer patient mortality is overwhelmingly due to distant organ metastases. Epithelial-mesenchymal transition is a process thought to facilitate local invasion and dissemination of cancer cells, thereby promoting metastasis. The conversion of epithelial cells into mesenchymal, fibroblast-like cells requires profound gene expression changes. A few transcription factors like SNAIL1 can initiate these changes, but are unlikely to be solely responsible for all of them. In our study we asked, whether destabilization of epithelial gene expression programs could involve FOXA transcription factors. FOXA factors represent a special subgroup of regulatory proteins, so-called pioneer factors, with unique roles in the activation of transcriptional enhancers which are key regulatory DNA elements that orchestrate spatio-temporal gene expression. In a model of colorectal cancer we found that SNAIL1 represses FOXA factors, and demonstrate that FOXA factors are associated with enhancer elements at epithelial signature genes. Indeed, FOXA factors are sufficient to initiate enhancer activation and necessary to maintain their activity. Our findings indicate that SNAIL1 induces pervasive repression of epithelial genes through a hierarchical scheme of alterations in transcription factor expression which may be applicable to other instances of cell fate changes and transcriptional reprogramming.
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Affiliation(s)
- Sabine Jägle
- Institute of Molecular Medicine and Cell Research, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Hauke Busch
- Institute of Molecular Medicine and Cell Research, Faculty of Medicine, University of Freiburg, Freiburg, Germany
- German Cancer Consortium (DKTK), Freiburg, Germany
- German Cancer Research Center (DKFZ), Heidelberg, Germany
- Institute of Experimental Dermatology and Institute of Cardiogenetics, University of Lübeck, Lübeck, Germany
| | - Vivien Freihen
- Institute of Molecular Medicine and Cell Research, Faculty of Medicine, University of Freiburg, Freiburg, Germany
- Faculty of Biology, University of Freiburg, Freiburg, Germany
| | - Sven Beyes
- Institute of Molecular Medicine and Cell Research, Faculty of Medicine, University of Freiburg, Freiburg, Germany
- Faculty of Biology, University of Freiburg, Freiburg, Germany
| | - Monika Schrempp
- Institute of Molecular Medicine and Cell Research, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Melanie Boerries
- Institute of Molecular Medicine and Cell Research, Faculty of Medicine, University of Freiburg, Freiburg, Germany
- German Cancer Consortium (DKTK), Freiburg, Germany
- German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Andreas Hecht
- Institute of Molecular Medicine and Cell Research, Faculty of Medicine, University of Freiburg, Freiburg, Germany
- Faculty of Biology, University of Freiburg, Freiburg, Germany
- BIOSS Centre for Biological Signalling Studies, University of Freiburg, Freiburg, Germany
- * E-mail:
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