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Bhattacharjee R, Ghosh S, Nath A, Basu A, Biswas O, Patil CR, Kundu CN. Theragnostic strategies harnessing the self-renewal pathways of stem-like cells in the acute myeloid leukemia. Crit Rev Oncol Hematol 2022; 177:103753. [PMID: 35803452 DOI: 10.1016/j.critrevonc.2022.103753] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2021] [Revised: 06/21/2022] [Accepted: 07/02/2022] [Indexed: 02/07/2023] Open
Abstract
Acute myelogenous leukemia (AML) is a genetically heterogeneous and aggressive cancer of the Hematopoietic Stem/progenitor cells. It is distinguished by the uncontrollable clonal growth of malignant myeloid stem cells in the bone marrow, venous blood, and other body tissues. AML is the most predominant of leukemias occurring in adults (25%) and children (15-20%). The relapse after chemotherapy is a major concern in the treatment of AML. The overall 5-year survival rate in young AML patients is about 40-45% whereas in the elderly patients it is less than 10%. Leukemia stem-like cells (LSCs) having the ability to self-renew indefinitely, repopulate and persist longer in the G0/G1 phase play a crucial role in the AML relapse and refractoriness to chemotherapy. Hence, novel treatment strategies and diagnostic biomarkers targeting LSCs are being increasingly investigated. Through this review, we have explored the signaling modulations in the LSCs as the theragnostic targets. The significance of the self-renewal pathways in overcoming the treatment challenges in AML has been highlighted.
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Affiliation(s)
- Rahul Bhattacharjee
- KIIT School of Biotechnology, Kalinga Institute of Industrial Technology (KIIT-DU), Bhubaneswar, Odisha, India
| | - Sharad Ghosh
- KIIT School of Biotechnology, Kalinga Institute of Industrial Technology (KIIT-DU), Bhubaneswar, Odisha, India
| | - Arijit Nath
- KIIT School of Biotechnology, Kalinga Institute of Industrial Technology (KIIT-DU), Bhubaneswar, Odisha, India
| | - Asmita Basu
- KIIT School of Biotechnology, Kalinga Institute of Industrial Technology (KIIT-DU), Bhubaneswar, Odisha, India
| | - Ojaswi Biswas
- KIIT School of Biotechnology, Kalinga Institute of Industrial Technology (KIIT-DU), Bhubaneswar, Odisha, India
| | - Chandragauda R Patil
- Department of Pharmacology, DIPSAR, Delhi Pharmaceutical Sciences and Research University, New Delhi, India
| | - Chanakya Nath Kundu
- KIIT School of Biotechnology, Kalinga Institute of Industrial Technology (KIIT-DU), Bhubaneswar, Odisha, India.
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Liu Y, Duan C, Zhang C. E3 Ubiquitin Ligase in Anticancer Drugdsla Resistance: Recent Advances and Future Potential. Front Pharmacol 2021; 12:645864. [PMID: 33935743 PMCID: PMC8082683 DOI: 10.3389/fphar.2021.645864] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Accepted: 02/24/2021] [Indexed: 12/31/2022] Open
Abstract
Drug therapy is the primary treatment for patients with advanced cancer. The use of anticancer drugs will inevitably lead to drug resistance, which manifests as tumor recurrence. Overcoming chemoresistance may enable cancer patients to have better therapeutic effects. However, the mechanisms underlying drug resistance are poorly understood. E3 ubiquitin ligases (E3s) are a large class of proteins, and there are over 800 putative functional E3s. E3s play a crucial role in substrate recognition and catalyze the final step of ubiquitin transfer to specific substrate proteins. The diversity of the set of substrates contributes to the diverse functions of E3s, indicating that E3s could be desirable drug targets. The E3s MDM2, FBWX7, and SKP2 have been well studied and have shown a relationship with drug resistance. Strategies targeting E3s to combat drug resistance include interfering with their activators, degrading the E3s themselves and influencing the interaction between E3s and their substrates. Research on E3s has led to the discovery of possible therapeutic methods to overcome the challenging clinical situation imposed by drug resistance. In this article, we summarize the role of E3s in cancer drug resistance from the perspective of drug class.
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Affiliation(s)
- Yuanqi Liu
- Department of Thoracic Surgery, Xiangya Hospital, Central South University, Changsha, China.,Hunan Engineering Research Center for Pulmonary Nodules Precise Diagnosis & Treatment, Changsha, China
| | - Chaojun Duan
- Department of Thoracic Surgery, Xiangya Hospital, Central South University, Changsha, China.,Hunan Engineering Research Center for Pulmonary Nodules Precise Diagnosis & Treatment, Changsha, China.,Department of Oncology, Xiangya Hospital, Central South University, Changsha, China
| | - Chunfang Zhang
- Department of Thoracic Surgery, Xiangya Hospital, Central South University, Changsha, China.,Hunan Engineering Research Center for Pulmonary Nodules Precise Diagnosis & Treatment, Changsha, China.,National Clinical Research Center for Geriatric Disorders, Changsha, China
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Sun Y, Yang Y, Zhao Y, Li X, Zhang Y, Liu Z. The role of the tyrosine kinase Lyn in allergy and cancer. Mol Immunol 2021; 131:121-126. [PMID: 33419562 DOI: 10.1016/j.molimm.2020.12.028] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Revised: 12/10/2020] [Accepted: 12/20/2020] [Indexed: 01/07/2023]
Abstract
With worsening air pollution brought by global social development, the prevalence of allergic diseases has increased dramatically in the past few decades. The novel Lck/yes-related protein tyrosine kinase (Lyn) belongs to the Src kinase family (SFK) and plays a pivotal role in the pathogenesis of inflammation, tumor, and allergy. This signaling molecule is vital in the IgE/FcεRI signaling pathway that regulates allergy. The Lyn-FcεRIβ interaction is essential for mast cell activation. The signaling pathway of Lyn has become the focus of immune, inflammatory, tumor, and allergy research. This molecule has positive and negative regulatory effects, which have attracted researchers' attention. This paper reviews the basic characteristics of Lyn and its regulatory mechanism and role in tumor and other diseases, specifically in allergies.
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Affiliation(s)
- Yizhao Sun
- College of Pharmaceutical Sciences, Key Laboratory of Pharmaceutical Quality Control of Hebei Province, Institute of Life Science and Green Development, Hebei University, Baoding, 071002, China
| | - Yanlei Yang
- College of Pharmaceutical Sciences, Key Laboratory of Pharmaceutical Quality Control of Hebei Province, Institute of Life Science and Green Development, Hebei University, Baoding, 071002, China
| | - Yang Zhao
- College of Pharmaceutical Sciences, Key Laboratory of Pharmaceutical Quality Control of Hebei Province, Institute of Life Science and Green Development, Hebei University, Baoding, 071002, China
| | - Xiangsheng Li
- College of Pharmaceutical Sciences, Key Laboratory of Pharmaceutical Quality Control of Hebei Province, Institute of Life Science and Green Development, Hebei University, Baoding, 071002, China
| | - Yanfen Zhang
- Technology Transfer Center, Hebei University, Baoding, 071002, China.
| | - Zhongcheng Liu
- College of Pharmaceutical Sciences, Key Laboratory of Pharmaceutical Quality Control of Hebei Province, Institute of Life Science and Green Development, Hebei University, Baoding, 071002, China.
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Gurska LM, Ames K, Gritsman K. Signaling Pathways in Leukemic Stem Cells. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2019; 1143:1-39. [PMID: 31338813 PMCID: PMC7249489 DOI: 10.1007/978-981-13-7342-8_1] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Hematopoietic stem cells (HSCs) and leukemic stem cells (LSCs) utilize many of the same signaling pathways for their maintenance and survival. In this review, we will focus on several signaling pathways whose roles have been extensively studied in both HSCs and LSCs. Our main focus will be on the PI3K/AKT/mTOR pathway and several of its regulators and downstream effectors. We will also discuss several other signaling pathways of particular importance in LSCs, including the WNT/β-catenin pathway, the NOTCH pathway, and the TGFβ pathway. For each of these pathways, we will emphasize differences in how these pathways operate in LSCs, compared to their function in HSCs, to highlight opportunities for the specific therapeutic targeting of LSCs. We will also highlight areas of crosstalk between multiple signaling pathways that may affect LSC function.
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Affiliation(s)
- Lindsay M Gurska
- Department of Cell Biology, Albert Einstein College of Medicine, Bronx, New York, USA
- Department of Medicine, Albert Einstein College of Medicine, Bronx, New York, USA
| | - Kristina Ames
- Department of Cell Biology, Albert Einstein College of Medicine, Bronx, New York, USA
- Department of Medicine, Albert Einstein College of Medicine, Bronx, New York, USA
| | - Kira Gritsman
- Department of Cell Biology, Albert Einstein College of Medicine, Bronx, New York, USA.
- Department of Medicine, Albert Einstein College of Medicine, Bronx, New York, USA.
- Department of Medical Oncology, Montefiore Hospital, Bronx, New York, USA.
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Association between Altered Expression and Genetic Variations of Transforming Growth Factor β-Smad Pathway with Chronic Myeloid Leukemia. Int J Hematol Oncol Stem Cell Res 2018; 12:14-22. [PMID: 29951173 PMCID: PMC6018248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022] Open
Abstract
Background: Chronic myeloid leukemia (CML) is a hematological disorder caused by fusion of BCR and ABL genes. BCR-ABL dependent and independent pathways play equally important role in CML. TGFβ-Smad pathway, an important BCR -ABL independent pathway, has scarce data in CML. Present study investigate the association between TGFβ-Smad pathway and CML. Materials and Methods: Sixty-four CML patients and age matched healthy controls (n=63) were enrolled in this study. Patients were segregated into responder and resistant groups depending on their response to Imatinib mesylate (IM). TGFβ1 serum levels were evaluated by ELISA and transcript levels of TGFβ1 receptors, SMAD4 and SMAD7 were evaluated by Real-Time PCR. Sequencing of exons and exon-intron boundaries of study genes was performed using Next Generation Sequencing (NGS) in 20 CML patients. Statistical analysis was performed using SPSS version 16.0. Results:TGFβ1 serum levels were significantly elevated (p = 0.02) and TGFβR2 and SMAD4 were significantly down-regulated (p = 0.012 and p = 0.043 respectively) in the patients. c.69A>G in TGFβ1, c.1024+24G>A in TGFβR1 and g.46474746C>T in SMAD7 were the most important genetic variants observed with their presence in 10/20, 8/20 and 7/20 patients respectively. In addition, TGFβR1 transcript levels were reduced in CML patients with c.69A>G mutation. None of the genes differed significantly in terms of expression or genetic variants between responder and resistant patient groups. Conclusion: Our findings demonstrate the role of differential expression and genetic variants of TGFβ-Smad pathway in CML. Decreased TGFβR2 and SMAD4 levels observed in the present study may be responsible for reduced tumor suppressive effects of this pathway in CML.
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Rókusz A, Veres D, Szücs A, Bugyik E, Mózes M, Paku S, Nagy P, Dezső K. Ductular reaction correlates with fibrogenesis but does not contribute to liver regeneration in experimental fibrosis models. PLoS One 2017; 12:e0176518. [PMID: 28445529 PMCID: PMC5405957 DOI: 10.1371/journal.pone.0176518] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2017] [Accepted: 04/12/2017] [Indexed: 12/13/2022] Open
Abstract
Background and aims Ductular reaction is a standard component of fibrotic liver tissue but its function is largely unknown. It is supposed to interact with the matrix producing myofibroblasts and compensate the declining regenerative capacity of hepatocytes. The relationship between the extent of fibrosis—ductular reaction, proliferative activity of hepatocytes and ductular reaction were studied sequentially in experimental hepatic fibrosis models. Methods Liver fibrosis/cirrhosis was induced in wild type and TGFβ overproducing transgenic mice by carbon tetrachloride and thioacetamide administration. The effect of thioacetamide was modulated by treatment with imatinib and erlotinib. The extent of ductular reaction and fibrosis was measured by morphometry following cytokeratin 19 immunofluorescent labeling and Picro Sirius staining respectively. The proliferative activity of hepatocytes and ductular reaction was evaluated by BrdU incorporation. The temporal distribution of the parameters was followed and compared within and between different experimental groups. Results There was a strong significant correlation between the extent of fibrosis and ductular reaction in each experimental group. Although imatinib and erlotinib temporarily decreased fibrosis this effect later disappeared. We could not observe negative correlation between the proliferation of hepatocytes and ductular reaction in any of the investigated models. Conclusions The stringent connection between ductular reaction and fibrosis, which cannot be influenced by any of our treatment regimens, suggests that there is a close mutual interaction between them instead of a unidirectional causal relationship. Our results confirm a close connection between DR and fibrogenesis. However, since the two parameters changed together we could not establish a causal relationship and were unable to reveal which was the primary event. The lack of inverse correlation between the proliferation of hepatocytes and ductular reaction questions that ductular reaction can compensate for the failing regenerative activity of hepatocytes. No evidences support the persistent antifibrotic property of imatinib or erlotinib.
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Affiliation(s)
- András Rókusz
- First Department of Pathology and Experimental Cancer Research, Semmelweis University, Budapest, Hungary
| | - Dániel Veres
- Department of Biophysics and Radiation Biology, Semmelweis University, Budapest, Hungary
| | - Armanda Szücs
- First Department of Pathology and Experimental Cancer Research, Semmelweis University, Budapest, Hungary
| | - Edina Bugyik
- First Department of Pathology and Experimental Cancer Research, Semmelweis University, Budapest, Hungary
| | - Miklós Mózes
- Institute of Pathophysiology, Semmelweis University, Budapest, Hungary
| | - Sándor Paku
- First Department of Pathology and Experimental Cancer Research, Semmelweis University, Budapest, Hungary.,Tumor Progression Research Group, Joint Research Organization of the Hungarian Academy of Sciences and Semmelweis University, Budapest, Hungary
| | - Péter Nagy
- First Department of Pathology and Experimental Cancer Research, Semmelweis University, Budapest, Hungary
| | - Katalin Dezső
- First Department of Pathology and Experimental Cancer Research, Semmelweis University, Budapest, Hungary
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Integrated analysis of microRNAs, transcription factors and target genes expression discloses a specific molecular architecture of hyperdiploid multiple myeloma. Oncotarget 2016; 6:19132-47. [PMID: 26056083 PMCID: PMC4662480 DOI: 10.18632/oncotarget.4302] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2015] [Accepted: 05/13/2015] [Indexed: 12/13/2022] Open
Abstract
Multiple Myeloma (MM) is a malignancy characterized by the hyperdiploid (HD-MM) and the non-hyperdiploid (nHD-MM) subtypes. To shed light within the molecular architecture of these subtypes, we used a novel integromics approach. By annotated MM patient mRNA/microRNA (miRNA) datasets, we investigated mRNAs and miRNAs profiles with relation to changes in transcriptional regulators expression. We found that HD-MM displays specific gene and miRNA expression profiles, involving the Signal Transducer and Activator of Transcription (STAT)3 pathway as well as the Transforming Growth Factor–beta (TGFβ) and the transcription regulator Nuclear Protein-1 (NUPR1). Our data define specific molecular features of HD-MM that may translate in the identification of novel relevant druggable targets.
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Pagani IS, Spinelli O, Mattarucchi E, Pirrone C, Pigni D, Amelotti E, Lilliu S, Boroni C, Intermesoli T, Giussani U, Caimi L, Bolda F, Baffelli R, Candi E, Pasquali F, Lo Curto F, Lanfranchi A, Porta F, Rambaldi A, Porta G. Genomic quantitative real-time PCR proves residual disease positivity in more than 30% samples with negative mRNA-based qRT-PCR in Chronic Myeloid Leukemia. Oncoscience 2014; 1:510-21. [PMID: 25594053 PMCID: PMC4278316 DOI: 10.18632/oncoscience.65] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2014] [Accepted: 07/23/2014] [Indexed: 12/20/2022] Open
Abstract
Imatinib mesylate (IM) is the first line therapy against Chronic Myeloid Leukemia, effectively prolonging overall survival. Because discontinuation of treatment is associated with relapse, IM is required indefinitely to maintain operational cure. To assess minimal residual disease, cytogenetic analysis is insensitive in a high background of normal lymphocytes. The qRT-PCR provides highly sensitive detection of BCR-ABL1 transcripts, but mRNA levels are not directly related to the number of leukemic cells, and undetectable results are difficult to interpret. We developed a sensitive approach to detect the number of leukemic cells by a genomic DNA (gDNA) Q-PCR assay based on the break-point sequence, with a formula to calculate the number of Ph-positive cells. We monitored 8 CML patients treated with IM for more than 8 years. We tested each samples by patient specific gDNA Q-PCR in parallel by the conventional techniques. In all samples positive for chimeric transcripts we showed corresponding chimeric gDNA by Q-PCR, and in 32.8% (42/128) of samples with undetectable levels of mRNA we detected the persistence of leukemic cells. The gDNA Q-PCR assay could be a new diagnostic tool used in parallel to conventional techniques to support the clinician's decision to vary or to STOP IM therapy.
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Affiliation(s)
- Ilaria S Pagani
- Department of Experimental and Clinical Medicine, Insubria University, Varese, Italy ; Department of Experimental Medicine and Surgery, Tor Vergata University, Rome, Italy
| | - Orietta Spinelli
- Hematology laboratory, USC Hematology, Papa Giovanni XXIII Hospital, Bergamo, Italy
| | - Elia Mattarucchi
- Department of Experimental and Clinical Medicine, Insubria University, Varese, Italy
| | - Cristina Pirrone
- Department of Experimental and Clinical Medicine, Insubria University, Varese, Italy
| | - Diana Pigni
- Department of Experimental and Clinical Medicine, Insubria University, Varese, Italy
| | - Elisabetta Amelotti
- Department of Experimental and Clinical Medicine, Insubria University, Varese, Italy
| | - Silvia Lilliu
- Hematology laboratory, USC Hematology, Papa Giovanni XXIII Hospital, Bergamo, Italy
| | - Chiara Boroni
- Hematology laboratory, USC Hematology, Papa Giovanni XXIII Hospital, Bergamo, Italy
| | - Tamara Intermesoli
- Hematology laboratory, USC Hematology, Papa Giovanni XXIII Hospital, Bergamo, Italy
| | - Ursula Giussani
- Laboratory of Medical Genetics, Papa Giovanni XXIII Hospital, Bergamo, Italy
| | - Luigi Caimi
- Department of Molecular and Translational Medicine, University of Brescia, Brescia, Italy
| | - Federica Bolda
- Laboratory of chemical-clinical analysis, Section of Hematology and blood coagulation, Stem Cells laboratory, Spedali Civili of Brescia, Brescia, Italy
| | - Renata Baffelli
- Laboratory of chemical-clinical analysis, Section of Hematology and blood coagulation, Stem Cells laboratory, Spedali Civili of Brescia, Brescia, Italy
| | - Eleonora Candi
- Department of Experimental Medicine and Surgery, Tor Vergata University, Rome, Italy
| | - Francesco Pasquali
- Department of Experimental and Clinical Medicine, Insubria University, Varese, Italy
| | - Francesco Lo Curto
- Department of Experimental and Clinical Medicine, Insubria University, Varese, Italy
| | - Arnalda Lanfranchi
- Laboratory of chemical-clinical analysis, Section of Hematology and blood coagulation, Stem Cells laboratory, Spedali Civili of Brescia, Brescia, Italy
| | - Fulvio Porta
- Laboratory of chemical-clinical analysis, Section of Hematology and blood coagulation, Stem Cells laboratory, Spedali Civili of Brescia, Brescia, Italy
| | - Alessandro Rambaldi
- Hematology laboratory, USC Hematology, Papa Giovanni XXIII Hospital, Bergamo, Italy
| | - Giovanni Porta
- Department of Experimental and Clinical Medicine, Insubria University, Varese, Italy
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Dittmer J, Leyh B. The impact of tumor stroma on drug response in breast cancer. Semin Cancer Biol 2014; 31:3-15. [PMID: 24912116 DOI: 10.1016/j.semcancer.2014.05.006] [Citation(s) in RCA: 76] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2014] [Revised: 05/27/2014] [Accepted: 05/30/2014] [Indexed: 02/06/2023]
Abstract
In the last two decades the breast cancer mortality rate has steadily declined, in part, due to the availability of better treatment options. However, drug resistance still remains a major challenge. Resistance can be an inherent feature of breast cancer cells, but can also arise from the tumor microenvironment. This review aims to focus on the modulatory effect of the tumor microenvironment on the differing response of breast cancer subtypes to targeted drugs and chemotherapy.
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Affiliation(s)
- Jürgen Dittmer
- Clinic for Gynecology, University of Halle, Halle/Saale, Germany.
| | - Benjamin Leyh
- Clinic for Gynecology, University of Halle, Halle/Saale, Germany
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Li G, Fox J, Liu Z, Liu J, Gao GF, Jin Y, Gao H, Wu M. Lyn mitigates mouse airway remodeling by downregulating the TGF-β3 isoform in house dust mite models. THE JOURNAL OF IMMUNOLOGY 2013; 191:5359-70. [PMID: 24127553 DOI: 10.4049/jimmunol.1301596] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Chronic airway remodeling is a serious consequence of asthma, which is caused by complex but largely unknown mechanisms. Despite versatile functions, the role of Lyn in chronic airway remodeling remains undefined. Using Lyn(-/-) mice, we show that continual exposure (for 8 wk) of house dust mite extracts induced a severe phenotype of chronic airway remodeling, including exacerbated mucus production, collagen deposition, dysregulated cytokine secretion, and elevated inflammation. Strikingly, a significant increase in TGF-β3 rather than TGF-β1 was observed in Lyn(-/-) mouse lungs compared with lungs in wild-type mice. Furthermore, TGF-β3 neutralizing Abs not only inhibited the expression of STAT6 and Smad2/3 but also decreased phosphorylation of Smad2 and NF-κB in Lyn(-/-) mouse lungs. In addition, both recombinant and adenoviral TGF-β3 significantly promoted epithelial-to-mesenchymal transition and intensified collagen I production and MUC5AC expression. Further examination of chronic asthma patients showed that a decreased Lyn correlated with the severity of airway inflammation and mucus hypersecretion. Finally, Lyn may critically regulate airway remodeling by directly interacting with TGF-β3. Collectively, these findings revealed that Lyn regulates TGF-β3 isoform and modulates the development of airway remodeling, which may have therapeutic implications for severe chronic asthma.
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Affiliation(s)
- Guoping Li
- Department of Biochemistry and Molecular Biology, University of North Dakota, Grand Forks, ND 58203
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Ciarcia R, Damiano S, Montagnaro S, Pagnini U, Ruocco A, Caparrotti G, d'Angelo D, Boffo S, Morales F, Rizzolio F, Florio S, Giordano A. Combined effects of PI3K and SRC kinase inhibitors with imatinib on intracellular calcium levels, autophagy, and apoptosis in CML-PBL cells. Cell Cycle 2013; 12:2839-48. [PMID: 23966159 DOI: 10.4161/cc.25920] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Imatinib induces a complete cytogenetic regression in a large percentage of patients affected by chronic myeloid leukemia (CML) until mutations in the kinase domain of BCR-ABL appear. Alternative strategies for CML patients include the inhibition of phosphatidylinositol 3-kinase (PI3K)-Akt-mammalian target of rapamycin (mTOR) pathway, which is constitutively activated in leukemia cells and seems important for the regulation of cell proliferation, viability, and autophagy. In this study, we verified the effect of imatinib mesylate (IM), alone or in association with LY294002 (LY) (a specific PI3K protein tyrosine kinase inhibitor) or 4-amino-5-(4-methylphenyl)-7-(t-butyl)pyrazolo[3,4-d]-pyrimidine (PP1) (a Src tyrosine kinase inhibitor), on viability, intracellular calcium mobilization, apoptosis, and autophagy, in order to verify possible mechanisms of interaction. Our data demonstrated that PP1 and LY interact synergistically with IM by inducing apoptosis and autophagy in Bcr/Abl+ leukemia cells and this mechanism is related to the stress of the endoplasmic reticulum (ER). Our findings suggest a reasonable relationship between apoptotic and autophagic activity of tyrosine kinase inhibitors (TKIs) and the functionality of smooth ER Ca (2+)-ATPase and inositol triphosphate receptors, independently of intracellular calcium levels. Therapeutic strategies combining imatinib with PI3K and/or Src kinase inhibitors warrant further investigations in Bcr/Abl+ malignancies, particularly in the cases of imatinib mesylate-resistant disease.
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Affiliation(s)
- Roberto Ciarcia
- Department of Veterinary Medicine and Animal Production; Sections of Pharmacology and Infectious Diseases; University of Naples "Federico II"; Naples, Italy
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Sartor C, Papayannidis C, Chiara Abbenante M, Iacobucci I, Broccoli A, Venturi C, Testoni N, Ferrari A, Martinelli G. Recurrent Gastrointestinal Hemorrhage in Treatment with Dasatinib in a Patient Showing SMAD4 Mutation with Acute Lymphoblastic Leukemia Philadelphia Positive and Juvenile Polyposis Hereditary Hemorrhagic Telangiectasia Syndrome. Hematol Rep 2013; 5:26-7. [PMID: 23888243 PMCID: PMC3719101 DOI: 10.4081/hr.2013.e7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2013] [Accepted: 04/16/2013] [Indexed: 02/02/2023] Open
Abstract
We report a case of a patient affected by juvenile polyposis and hereditary hemorrhagic telangiectasia linked to a SMAD4 mutation who developed acute lymphoblastic leukemia positive for the Philadelphia chromosome translocation and with a complex karyotype. During the treatment with the tyrosine kinase inhibitor dasatinib the patient presented recurrent severe gastrointestinal hemorrhages linked to the genetic background and aggravated by thrombocytopenia.
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Affiliation(s)
- Chiara Sartor
- Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna , Italy
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