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Luo Y, Feng X, Lang W, Xu W, Wang W, Mei C, Ye L, Zhu S, Wang L, Zhou X, Zeng H, Ma L, Ren Y, Jin J, Xu R, Huang G, Tong H. Ectopic expression of the transcription factor ONECUT3 drives a complex karyotype in myelodysplastic syndromes. J Clin Invest 2024; 134:e172468. [PMID: 38386414 PMCID: PMC11014670 DOI: 10.1172/jci172468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Accepted: 02/20/2024] [Indexed: 02/24/2024] Open
Abstract
Chromosomal instability is a prominent biological feature of myelodysplastic syndromes (MDS), with over 50% of patients with MDS harboring chromosomal abnormalities or a complex karyotype (CK). Despite this observation, the mechanisms underlying mitotic and chromosomal defects in MDS remain elusive. In this study, we identified ectopic expression of the transcription factor ONECUT3, which is associated with CKs and poorer survival outcomes in MDS. ONECUT3-overexpressing cell models exhibited enrichment of several notable pathways, including signatures of sister chromosome exchange separation and mitotic nuclear division with the upregulation of INCENP and CDCA8 genes. Notably, dysregulation of chromosome passenger complex (CPC) accumulation, besides the cell equator and midbody, during mitotic phases consequently caused cytokinesis failure and defective chromosome segregation. Mechanistically, the homeobox (HOX) domain of ONECUT3, serving as the DNA binding domain, occupied the unique genomic regions of INCENP and CDCA8 and transcriptionally activated these 2 genes. We identified a lead compound, C5484617, that functionally targeted the HOX domain of ONECUT3, inhibiting its transcriptional activity on downstream genes, and synergistically resensitized MDS cells to hypomethylating agents. This study revealed that ONECUT3 promoted chromosomal instability by transcriptional activation of INCENP and CDCA8, suggesting potential prognostic and therapeutic roles for targeting high-risk MDS patients with a CK.
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Affiliation(s)
- Yingwan Luo
- Department of Hematology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Xiaomin Feng
- Department of Cell Systems and Anatomy, Department of Pathology and Laboratory Medicine, UT Health San Antonio, Joe R. and Teresa Lozano Long School of Medicine, Mays Cancer Center at UT Health San Antonio, San Antonio, Texas, USA
| | - Wei Lang
- Department of Hematology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Weihong Xu
- Stanford Genome Technology Center, Palo Alto, California, USA
- Greater Bay Area Institute of Precision Medicine (Guangzhou), Fudan University, Nansha District, Guangzhou, China
| | - Wei Wang
- Department of Hematology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Chen Mei
- Department of Hematology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Li Ye
- Department of Hematology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Shuanghong Zhu
- Department of Hematology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Lu Wang
- Department of Hematology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Xinping Zhou
- Department of Hematology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Huimin Zeng
- Department of Cell Systems and Anatomy, Department of Pathology and Laboratory Medicine, UT Health San Antonio, Joe R. and Teresa Lozano Long School of Medicine, Mays Cancer Center at UT Health San Antonio, San Antonio, Texas, USA
- Department of Pediatrics, Peking University People’s Hospital, Beijing, China
| | - Liya Ma
- Department of Hematology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Yanling Ren
- Department of Hematology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Jie Jin
- Department of Hematology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Rongzhen Xu
- Department of Hematology, The Second Affiliated Hospital, School of Medicine
| | - Gang Huang
- Department of Cell Systems and Anatomy, Department of Pathology and Laboratory Medicine, UT Health San Antonio, Joe R. and Teresa Lozano Long School of Medicine, Mays Cancer Center at UT Health San Antonio, San Antonio, Texas, USA
| | - Hongyan Tong
- Department of Hematology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
- Cancer Center, and
- Zhejiang Provincial Key Lab of Hematopoietic Malignancy, Zhejiang University, Hangzhou, Zhejiang, China
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Ookura M, Fujii T, Yagi H, Ogawa T, Kishi S, Hosono N, Shigemi H, Yamauchi T, Ueda T, Yoshida A. YM155 exerts potent cytotoxic activity against quiescent (G 0/G 1) multiple myeloma and bortezomib resistant cells via inhibition of survivin and Mcl-1. Oncotarget 2017; 8:111535-111550. [PMID: 29340073 PMCID: PMC5762341 DOI: 10.18632/oncotarget.22871] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2017] [Accepted: 11/13/2017] [Indexed: 12/25/2022] Open
Abstract
YM155, a novel small molecule inhibitor of survivin, shows broad anticancer activity. Here, we have focused on the cytotoxic activity of YM155 against multiple myeloma (MM) including cytokinetically quiescent (G0/G1) cells and bortezomib resistant cells. YM155 strongly inhibited the growth of MM cell lines with the IC50 value of below 10 nM. YM155 also showed potent anti-myeloma activity in mouse xenograft model. YM155 suppressed the expression of survivin and rapidly directed Mcl-1 protein for proteasome degradation. YM155 abrogated the interleukin-6-induced STAT3 phosphorylation, subsequently blocked Mcl-1 expression and induced apoptosis in MM cells. Triple-color flow cytometric analysis revealed that YM155 potently induced cell death of MM cells in G0 phase. Quiescent primary MM cells were also sensitive to YM155. We established bortezomib-resistant MM cell line, U266/BTZR1, which possess a point mutation G322A. YM155 exhibited similar cytotoxic potency against U266/BTZR1 compared with parental cells. Interestingly, survivin expression was markedly elevated in U266/BTZR1 cells. Treatment with YM155 significantly down-regulated this increased survivin and Mcl-1 expression in U266/BTZR1 cells. In conclusion, our data indicate that YM155 exhibits potent cytotoxicity against quiescent (G0/G1) MM cells and bortezomib-resistant cells. These unique features of YM155 may be beneficial for the development of new therapeutic strategies to eliminate quiescent MM cells and overcome bortezomib resistance.
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Affiliation(s)
- Miyuki Ookura
- Department of Hematology and Oncology, University of Fukui, Matsuoka, Fukui 910-1193, Japan
| | - Tatsuya Fujii
- Department of Hematology and Oncology, University of Fukui, Matsuoka, Fukui 910-1193, Japan
| | - Hideki Yagi
- Department of Pharmaceutical Sciences, International University of Health and Welfare, Otawara, Tochigi 324-8501, Japan
| | - Takuya Ogawa
- Department of Pharmaceutical Sciences, International University of Health and Welfare, Otawara, Tochigi 324-8501, Japan
| | - Shinji Kishi
- Department of Hematology and Oncology, University of Fukui, Matsuoka, Fukui 910-1193, Japan
| | - Naoko Hosono
- Department of Hematology and Oncology, University of Fukui, Matsuoka, Fukui 910-1193, Japan
| | - Hiroko Shigemi
- Department of Hematology and Oncology, University of Fukui, Matsuoka, Fukui 910-1193, Japan
| | - Takahiro Yamauchi
- Department of Hematology and Oncology, University of Fukui, Matsuoka, Fukui 910-1193, Japan
| | - Takanori Ueda
- Department of Hematology and Oncology, University of Fukui, Matsuoka, Fukui 910-1193, Japan
| | - Akira Yoshida
- Department of Hematology, International University of Health and Welfare Hospital, Iguchi, Nasushiobara, Tochigi, 329-2763, Japan
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Apoptosis-Related Gene Expression Profiling in Hematopoietic Cell Fractions of MDS Patients. PLoS One 2016; 11:e0165582. [PMID: 27902785 PMCID: PMC5130187 DOI: 10.1371/journal.pone.0165582] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2016] [Accepted: 10/16/2016] [Indexed: 11/19/2022] Open
Abstract
Although the vast majority of patients with a myelodysplastic syndrome (MDS) suffer from cytopenias, the bone marrow is usually normocellular or hypercellular. Apoptosis of hematopoietic cells in the bone marrow has been implicated in this phenomenon. However, in MDS it remains only partially elucidated which genes are involved in this process and which hematopoietic cells are mainly affected. We employed sensitive real-time PCR technology to study 93 apoptosis-related genes and gene families in sorted immature CD34+ and the differentiating erythroid (CD71+) and monomyeloid (CD13/33+) bone marrow cells. Unsupervised cluster analysis of the expression signature readily distinguished the different cellular bone marrow fractions (CD34+, CD71+ and CD13/33+) from each other, but did not discriminate patients from healthy controls. When individual genes were regarded, several were found to be differentially expressed between patients and controls. Particularly, strong over-expression of BIK (BCL2-interacting killer) was observed in erythroid progenitor cells of low- and high-risk MDS patients (both p = 0.001) and TNFRSF4 (tumor necrosis factor receptor superfamily 4) was down-regulated in immature hematopoietic cells (p = 0.0023) of low-risk MDS patients compared to healthy bone marrow.
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Reversine triggers mitotic catastrophe and apoptosis in K562 cells. Leuk Res 2016; 48:26-31. [PMID: 27447890 DOI: 10.1016/j.leukres.2016.06.011] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2016] [Revised: 05/30/2016] [Accepted: 06/30/2016] [Indexed: 02/06/2023]
Abstract
Chronic myeloid leukemia (CML) is a clonal myeloproliferative neoplasm of the hematopoietic stem cell characterized by presence of the oncoprotein BCR-ABL1, which have constitutive tyrosine kinase activity. BCR-ABL1 activation induces aurora kinase A (AURKA) and aurora kinase B (AURKB) expression, which are serine-threonine kinases that play an important function in chromosome alignment, segregation and cytokinesis during mitosis. Acquisition of resistance to tyrosine kinase inhibitors has emerged as a problem for CML patients and the identification of novel targets with an important contribution for CML phenotype is of interest. In the present study, we explored the cellular effects of reversine, an AURKA and AURKB inhibitor, in the BCR-ABL1+ K562 cells. Our results indicate that reversine reduces AURKA and AURKB expression, leads to reduction of cell viability and increased apoptosis in a dose- and time-dependent manner, as well as, induces mitotic catastrophe in K562 cells. Our preclinical study establishes that reversine presents an effective antileukemia activity against K562 cells and provide new insights on anticancer opportunities for CML.
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Machado-Neto JA, Saad STO, Traina F. Stathmin 1 in normal and malignant hematopoiesis. BMB Rep 2015; 47:660-5. [PMID: 24667172 PMCID: PMC4345509 DOI: 10.5483/bmbrep.2014.47.12.020] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2014] [Indexed: 12/18/2022] Open
Abstract
Stathmin 1 is a microtubule destabilizer that plays an important role in cell cycle progression, segregation of chromosomes, clonogenicity, cell motility and survival. Stathmin 1 overexpression has been reported in malignant hematopoietic cells and Stathmin 1 inhibition reduces the highly proliferative potential of leukemia cell lines. However, during the differentiation of primary hematopoietic cells, Stathmin 1 expression decreases in parallel to decreases in the proliferative potential of early hematopoietic progenitors. The scope of the present review is to survey the current knowledge and highlight future perspectives for Stathmin 1 in normal and malignant hematopoiesis, with regard to the expression, function and clinical implications of this protein. [BMB Reports 2014; 47(12): 660-665]
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Affiliation(s)
- João Agostinho Machado-Neto
- Hematology and Hemotherapy Center-University of Campinas/Hemocentro-Unicamp, Instituto Nacional de Ciência e Tecnologia do Sangue, Campinas, São Paulo, Brazil
| | - Sara Teresinha Olalla Saad
- Hematology and Hemotherapy Center-University of Campinas/Hemocentro-Unicamp, Instituto Nacional de Ciência e Tecnologia do Sangue, Campinas, São Paulo, Brazil
| | - Fabiola Traina
- Hematology and Hemotherapy Center-University of Campinas/Hemocentro-Unicamp, Instituto Nacional de Ciência e Tecnologia do Sangue, Campinas; Department of Internal Medicine, University of São Paulo at Ribeirão Preto Medical School, Ribeirão Preto, São Paulo, Brazil
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Sah NK, Seniya C. Survivin splice variants and their diagnostic significance. Tumour Biol 2015; 36:6623-31. [PMID: 26245993 DOI: 10.1007/s13277-015-3865-5] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2015] [Accepted: 07/29/2015] [Indexed: 12/12/2022] Open
Abstract
Survivin plays a crucial role in cell division particularly during the development of the fetus, in the onset and progression of most tumors and is found expressed in a few terminally differentiated cells. Altogether, there are ten splice variants of survivin, some of which are not yet satisfactorily characterized. Several isoforms may undergo homo/heterodimerization, particularly with the wild-type survivin to elicit a variety of biological functions. The detection of survivin and its splice variants not only suggests the onset, maintenance, and progression of cancer, but also the stage of certain cancers. Recent studies demonstrate that the presence of survivin in urine and blood samples of patients may suggest urogenital and bladder cancer hematologic malignancies, respectively. The expression of the survivin-3α splice variant is indicative of the onset and progression of breast cancer. Several companies have developed cancer diagnostic kits using survivin for detection of cancer. Some are also engaged in fine-tuning the type and stage-specific diagnosis of cancer based on survivin, its splice variants with and without other markers, such as hyaluronidase. Briefly, survivin and its splice variants hold a great biological significance, particularly in the diagnosis of cancer.
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Affiliation(s)
- Nand K Sah
- Department of Life Sciences (Botany), T. N. B. College, Bhagalpur (T M Bhagalpur University, Bhagalpur), Bhagalpur, 812007, India.
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Heredia FF, de Sousa JC, Carvalho AF, Magalhaes SMM, Pinheiro RF. Aurora-B expression may not contribute to disease progression: a reflection of the heterogeneous pathogenesis? Haematologica 2015; 97:e37-9; author reply e40. [PMID: 23053671 DOI: 10.3324/haematol.2012.068296] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
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Xia R, Chen S, Chen Y, Zhang W, Zhu R, Deng A. A chromosomal passenger complex protein signature model predicts poor prognosis for non-small-cell lung cancer. Onco Targets Ther 2015; 8:721-6. [PMID: 25897247 PMCID: PMC4396580 DOI: 10.2147/ott.s81328] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
AIM The chromosomal passenger complex (CPC) acts as a key modulator for mitosis and cell cytokinesis. High levels of CPC proteins are frequently observed in multiple cancers and are correlated with more progressive malignant behaviors. The aim of the study was to evaluate whether CPC components or their combinations could be used to assess the clinical risk of patients with non-small-cell lung cancer (NSCLC). METHODS The expression levels of four CPC proteins - aurora B kinase (AURKB), borealin, inner centromere protein (INCENP), and survivin - were evaluated using immunohistochemistry in an independent cohort of NSCLC specimens. A molecular predictor model was developed based on the combination of the four CPC proteins. RESULTS All the CPC components were overexpressed in NSCLC tumors compared with their paired adjacent normal lung tissues. Survivin overexpression was significantly correlated with late tumor stage (P=0.0166). High expressions of AURKB, INCENP, and survivin, but not borealin, were associated with shorter survival in patients with NSCLC. The constructed 4-CPC-gene model divided the cohort into two different subgroups with significantly different prognoses (hazard ratio, HR =2.8915 [95% confidence interval, CI: 1.5187-5.5052]; P=0.0013) and was retained as an independent prognostic factor in multivariate analysis (HR =2.4398 [95% CI: 1.2631-4.7127], P=0.0082). Moreover, the 4-CPC-gene model demonstrated a higher predictive ability for overall survival than each individual CPC biomarker. CONCLUSION Taken together, our study suggests that a molecular prognostic model based on simultaneous detection of CPC components could serve as a complement to current clinical risk stratification approaches for patients with NSCLC.
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Affiliation(s)
- Rong Xia
- Department of Transfusion, Huashan Hospital, Fudan University, Shanghai, People's Republic of China
| | - Sunxiao Chen
- Department of Dermatology, Changzheng Hospital, Second Military Medical University, Shanghai, People's Republic of China
| | - Yan Chen
- Department of Laboratory Diagnosis, Changhai Hospital, Second Military Medical University, Shanghai, People's Republic of China
| | - Weiwei Zhang
- Department of Laboratory Diagnosis, Changhai Hospital, Second Military Medical University, Shanghai, People's Republic of China
| | - Rongrong Zhu
- Department of Laboratory Diagnosis, Changhai Hospital, Second Military Medical University, Shanghai, People's Republic of China
| | - Anmei Deng
- Department of Laboratory Diagnosis, Changhai Hospital, Second Military Medical University, Shanghai, People's Republic of China
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Genga KR, Filho FDR, Ferreira FVDA, de Sousa JC, Studart FS, Magalhães SMM, Heredia FF, Pinheiro RF. Proteins of the mitotic checkpoint and spindle are related to chromosomal instability and unfavourable prognosis in patients with myelodysplastic syndrome. J Clin Pathol 2015; 68:381-7. [PMID: 25637637 DOI: 10.1136/jclinpath-2014-202728] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2014] [Accepted: 01/07/2015] [Indexed: 12/31/2022]
Abstract
AIMS To study the immunoexpression of proteins related to the mitotic checkpoint (cell division cycle 20 (CDC20), mitotic arrest deficient 2 (MAD2)) and the mitotic spindle (Aurora-B) in patients with myelodysplastic syndrome (MDS). METHODS Protein expression was analysed in bone marrow tissue samples from 40 patients with MDS using immunohistochemistry. Prognostic markers (transfusion dependency, depth of cytopenias, chromosomal abnormalities and survival) were also studied. RESULTS Higher MAD2 expression was observed among patients with platelets <50×10(9)/L than among patients with platelets ≥50×10(9)/L (42.6±22.8% vs 22.7±19.1%, respectively). Higher CDC20 expression was identified among patients with three dysplasias compared with patients who presented with one or two dysplasias (33.9±24.1% vs 10.5±5.7% vs 12.8±7.8%, respectively), among patients who exhibited a complex versus non-complex karyotype (50.0±30.2% vs 18.4±14%, respectively) and among patients with platelets <50×10(9)/L vs platelets ≥50×10(9)/L (38.2±26.2% vs 16.1±12.4%, respectively). Higher Aurora-B expression was found in patients with an abnormal versus normal karyotype (21.2±13.2% vs 7.5±5.0%, respectively). High expression of MAD2 and CDC20 (≥50%) was associated with severe thrombocytopenia. We also found statistically significant differences in the overall survival rate when comparing different degrees of CDC20, MAD2 and Aurora-B protein expression. CONCLUSIONS To the best of our knowledge, this is the first report to demonstrate that these proteins are associated with chromosomal abnormalities and poor prognosis in patients with MDS.
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Affiliation(s)
- Kelly Roveran Genga
- Department of Pathology, Post-Graduate Program in Pathology, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | | | | | | | | | - Silvia Maria Meira Magalhães
- Laboratory Cytogenomic of Cancer, Federal University of Ceará, Fortaleza, Ceará, Brazil Department of Clinical Medicine, Post-Graduate Program in Medical Sciences, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - Fabíola Fernandes Heredia
- Department of Pathology, Post-Graduate Program in Pathology, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - Ronald Feitosa Pinheiro
- Department of Pathology, Post-Graduate Program in Pathology, Federal University of Ceará, Fortaleza, Ceará, Brazil Laboratory Cytogenomic of Cancer, Federal University of Ceará, Fortaleza, Ceará, Brazil Department of Clinical Medicine, Post-Graduate Program in Medical Sciences, Federal University of Ceará, Fortaleza, Ceará, Brazil
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Wu X, Liu W, Cao Q, Chen C, Chen Z, Xu Z, Li W, Liu F, Yao X. Inhibition of Aurora B by CCT137690 sensitizes colorectal cells to radiotherapy. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2014; 33:13. [PMID: 24476310 PMCID: PMC3976098 DOI: 10.1186/1756-9966-33-13] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/16/2013] [Accepted: 01/20/2014] [Indexed: 02/04/2023]
Abstract
Colorectal cancer is the third most commonly diagnosed cancer worldwide. Although surgery remains the best treatment for this disease, adjuvant chemotherapy and radiotherapy are also very important in clinical practice. However, the notorious refractory lack of responses to radiochemotherapy greatly limits the application of radiochemotherapy in the context of colorectal cancer.There is a growing interest in the role that Aurora B may play in colorectal cancer cell survival as well as other cancer subtypes. In the current study, we sought to ascertain whether blocking of Aurora B signaling machinery by a small molecule inhibitor, CCT137690, could synergize radiation-induced colorectal cancer cell death. Results showed that CCT137690 increases the sensitivity of SW620 cells to radiation. Mechanistic studies revealed that Aurora B-Survivin pathway may be involved in this synergistic effect.Taken together, our results for the first time show that Aurora B inhibition and radiation exert a synergistic effect, resulting in enhanced colorectal cancer cell death. This synergistic effect is clinically relevant as lower doses of radiation could be used for cancer treatment, and could provide significant clinical benefits in terms of colorectal cancer management, while reducing unwanted side-effects.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Xuequan Yao
- Department of Surgical Oncology, Affiliated Hospital of Nanjing University of Traditional Chinese Medicine, 155 Guangzhou Road, Nanjing 210029, China.
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Kim HJ, Choi EJ, Sohn HJ, Park SH, Min WS, Kim TG. Combinatorial molecular marker assays of WT1, survivin, and TERT at initial diagnosis of adult acute myeloid leukemia. Eur J Haematol 2013; 91:411-22. [PMID: 23826993 DOI: 10.1111/ejh.12167] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/01/2013] [Indexed: 11/30/2022]
Abstract
High levels of expression of Wilms' tumor gene 1 (WT1), survivin, or telomerase reverse transcriptase (TERT) genes are introduced as leukemia-associated targets predicting clinical outcome. We prospectively investigated the leukemia-associated gene transcripts by real-time quantitative polymerase chain reaction from 151 adult patients with AML associated with the patients' clinical characteristics. The maximum levels of each gene in bone marrow were 64.4-, 8.1-, and 3.9-fold higher than those in the normal control, respectively. In contrast to the WT1 and TERT levels, survivin showed comparatively higher expression in the unfavorable cytogenetic group of patients. We found a significant difference in survivin levels between the CR and non-CR groups (P = 0.0237). TERT expression levels were higher in patients who had a greater number of peripheral blood leukemic blasts at diagnosis (P = 0.0191). Non-MRC subtypes and patients without specific mutations were the most powerful predictive factors for a better CR rate, by multivariate analyses. The lower levels of both WT1 and survivin co-expression (P = 0.0129) and both survivin + TERT co-expression (P = 0.0115) were significant factors for better OS. Besides lower initial levels of serum ferritin (P = 0.0401), lower levels of WT1 (P = 0.0438) and survivin (P = 0.0401), lower levels of both WT1 and survivin co-expression (P = 0.0031), and the three-gene combination of lower WT1 + survivin + TERT (P = 0.0454) were powerful predictive factors for better EFS. As our findings were based on a single disease entity, that is, adult AML, they suggest that the expression of these genes may be critical for the immunobiology of AML to influence the clinical outcome in various ways.
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Affiliation(s)
- Hee-Je Kim
- Division of Hematology, Department of Internal Medicine, Catholic Blood and Marrow Transplantation Center, Seoul St. Mary's Hospital, Seoul, Korea
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Feng W, Yoshida A, Ueda T. YM155 induces caspase-8 dependent apoptosis through downregulation of survivin and Mcl-1 in human leukemia cells. Biochem Biophys Res Commun 2013; 435:52-7. [PMID: 23618862 DOI: 10.1016/j.bbrc.2013.04.036] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2013] [Accepted: 04/06/2013] [Indexed: 10/26/2022]
Abstract
Survivin, a member of the inhibitor of apoptosis protein (IAP) family, is highly expressed in various kinds of tumors. In the present study, we investigated the cytotoxic mechanism of YM155, a unique small-molecule inhibitor of survivin, in human myelogenous leukemia cells. YM155 potently inhibited the cell growth of HL-60 and U937 cells with the half-maximal inhibitory concentration (IC50) value of 0.3 nM and 0.8 nM, respectively. YM155 significantly suppressed the levels of mRNA expression and protein of survivin in HL-60 and U937 cells. In addition, we also found that YM155 down-regulated the level of Mcl-1, another critical anti-apoptotic protein, in both HL-60 and U937 cells. Treatment of HL-60 and U937 cells with YM155 induced apoptosis concomitant with the activation of caspase-8 and caspase-3. Interestingly, we have found that caspase-8 inhibitor Z-IETD-FMK strongly inhibited YM155-induced apoptosis in HL-60 and U937 cells. When cells were pretreated with Z-IETD-FMK, the activation of caspase-3 was completely abolished, suggesting that caspase-8 may be involved in the activation of caspase-3 during YM155-induced apoptosis. We demonstrated for the first time that YM155 induces caspase-8 dependent apoptosis through downregulation of survivin and Mcl-1 in human leukemia cells.
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Affiliation(s)
- Weiying Feng
- Department of Hematology and Oncology, Faculty of Medicine, University of Fukui, 23 Shimoaizuki, Matsuoka, Eiheiji-Chou, Fukui 910-1193, Japan
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