1
|
Liu X, Liu S, Sun H, Zhang J, Li M, Shi Y, Wang G, Chen W, Cao Y, Lu G, Ning Y, Zhao Y. NVP-BHG712 alleviates ovariectomy-induced osteoporosis by modulating osteoclastogenesis. Eur J Pharmacol 2024; 983:177000. [PMID: 39278311 DOI: 10.1016/j.ejphar.2024.177000] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2024] [Revised: 08/30/2024] [Accepted: 09/12/2024] [Indexed: 09/18/2024]
Abstract
Postmenopausal osteoporosis (PMOP) is closely related to the pathogenesis of osteoclasts, with the Cathepsin K (CTSK) protein playing a crucial role. Our study aimed to screen small molecule compounds targeting CTSK and evaluate their impact on PMOP. Through molecular docking, we identified NVP-BHG712 as significantly inhibiting osteoclast differentiation and bone resorption. NVP-BHG712 also effectively suppressed CTSK activity and exhibited strong binding affinity to CTSK protein. Furthermore, NVP-BHG712 regulated the expression of inflammatory factors and modulated the balance between M1 and M2 macrophage polarization. In the mouse model of ovariectomy-induced osteoporosis, NVP-BHG712 rescued bone loss by inhibiting excessive osteoclast activation. These findings suggest that NVP-BHG712 may be a promising treatment for pathological osteoporosis by alleviating osteoclast function.
Collapse
Affiliation(s)
- Xin Liu
- State Key Laboratory of Reproductive Medicine and Offspring Health, Shandong University, Jinan, Shandong, 250012, China; National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, Shandong, 250012, China; Key Laboratory of Reproductive Endocrinology (Shandong University), Ministry of Education, Jinan, Shandong, 250012, China; Shandong Technology Innovation Center for Reproductive Health, Jinan, Shandong, 250012, China; Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, Shandong, 250012, China; Shandong Key Laboratory of Reproductive Medicine, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, 250012, China; Research Unit of Gametogenesis and Health of ART-Offspring, Chinese Academy of Medical Sciences (No.2021RU001), Jinan, Shandong, 250012, China
| | - Shuang Liu
- State Key Laboratory of Reproductive Medicine and Offspring Health, Shandong University, Jinan, Shandong, 250012, China; National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, Shandong, 250012, China; Key Laboratory of Reproductive Endocrinology (Shandong University), Ministry of Education, Jinan, Shandong, 250012, China; Shandong Technology Innovation Center for Reproductive Health, Jinan, Shandong, 250012, China; Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, Shandong, 250012, China; Shandong Key Laboratory of Reproductive Medicine, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, 250012, China; Research Unit of Gametogenesis and Health of ART-Offspring, Chinese Academy of Medical Sciences (No.2021RU001), Jinan, Shandong, 250012, China
| | - Huanxin Sun
- State Key Laboratory of Reproductive Medicine and Offspring Health, Shandong University, Jinan, Shandong, 250012, China; National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, Shandong, 250012, China; Key Laboratory of Reproductive Endocrinology (Shandong University), Ministry of Education, Jinan, Shandong, 250012, China; Shandong Technology Innovation Center for Reproductive Health, Jinan, Shandong, 250012, China; Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, Shandong, 250012, China; Shandong Key Laboratory of Reproductive Medicine, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, 250012, China; Research Unit of Gametogenesis and Health of ART-Offspring, Chinese Academy of Medical Sciences (No.2021RU001), Jinan, Shandong, 250012, China
| | - Jing Zhang
- State Key Laboratory of Reproductive Medicine and Offspring Health, Shandong University, Jinan, Shandong, 250012, China; National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, Shandong, 250012, China; Key Laboratory of Reproductive Endocrinology (Shandong University), Ministry of Education, Jinan, Shandong, 250012, China; Shandong Technology Innovation Center for Reproductive Health, Jinan, Shandong, 250012, China; Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, Shandong, 250012, China; Shandong Key Laboratory of Reproductive Medicine, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, 250012, China; Research Unit of Gametogenesis and Health of ART-Offspring, Chinese Academy of Medical Sciences (No.2021RU001), Jinan, Shandong, 250012, China
| | - Ming Li
- State Key Laboratory of Reproductive Medicine and Offspring Health, Shandong University, Jinan, Shandong, 250012, China; National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, Shandong, 250012, China; Key Laboratory of Reproductive Endocrinology (Shandong University), Ministry of Education, Jinan, Shandong, 250012, China; Shandong Technology Innovation Center for Reproductive Health, Jinan, Shandong, 250012, China; Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, Shandong, 250012, China; Shandong Key Laboratory of Reproductive Medicine, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, 250012, China; Research Unit of Gametogenesis and Health of ART-Offspring, Chinese Academy of Medical Sciences (No.2021RU001), Jinan, Shandong, 250012, China
| | - Yuxuan Shi
- State Key Laboratory of Reproductive Medicine and Offspring Health, Shandong University, Jinan, Shandong, 250012, China; National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, Shandong, 250012, China; Key Laboratory of Reproductive Endocrinology (Shandong University), Ministry of Education, Jinan, Shandong, 250012, China; Shandong Technology Innovation Center for Reproductive Health, Jinan, Shandong, 250012, China; Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, Shandong, 250012, China; Shandong Key Laboratory of Reproductive Medicine, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, 250012, China; Research Unit of Gametogenesis and Health of ART-Offspring, Chinese Academy of Medical Sciences (No.2021RU001), Jinan, Shandong, 250012, China
| | - Guolong Wang
- State Key Laboratory of Reproductive Medicine and Offspring Health, Shandong University, Jinan, Shandong, 250012, China; National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, Shandong, 250012, China; Key Laboratory of Reproductive Endocrinology (Shandong University), Ministry of Education, Jinan, Shandong, 250012, China; Shandong Technology Innovation Center for Reproductive Health, Jinan, Shandong, 250012, China; Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, Shandong, 250012, China; Shandong Key Laboratory of Reproductive Medicine, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, 250012, China; Research Unit of Gametogenesis and Health of ART-Offspring, Chinese Academy of Medical Sciences (No.2021RU001), Jinan, Shandong, 250012, China
| | - Wendi Chen
- State Key Laboratory of Reproductive Medicine and Offspring Health, Shandong University, Jinan, Shandong, 250012, China; National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, Shandong, 250012, China; Key Laboratory of Reproductive Endocrinology (Shandong University), Ministry of Education, Jinan, Shandong, 250012, China; Shandong Technology Innovation Center for Reproductive Health, Jinan, Shandong, 250012, China; Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, Shandong, 250012, China; Shandong Key Laboratory of Reproductive Medicine, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, 250012, China; Research Unit of Gametogenesis and Health of ART-Offspring, Chinese Academy of Medical Sciences (No.2021RU001), Jinan, Shandong, 250012, China
| | - Yongzhi Cao
- State Key Laboratory of Reproductive Medicine and Offspring Health, Shandong University, Jinan, Shandong, 250012, China; National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, Shandong, 250012, China; Key Laboratory of Reproductive Endocrinology (Shandong University), Ministry of Education, Jinan, Shandong, 250012, China; Shandong Technology Innovation Center for Reproductive Health, Jinan, Shandong, 250012, China; Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, Shandong, 250012, China; Shandong Key Laboratory of Reproductive Medicine, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, 250012, China; Research Unit of Gametogenesis and Health of ART-Offspring, Chinese Academy of Medical Sciences (No.2021RU001), Jinan, Shandong, 250012, China
| | - Gang Lu
- CUHK-SDU Joint Laboratory on Reproductive Genetics, School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Yunna Ning
- State Key Laboratory of Reproductive Medicine and Offspring Health, Shandong University, Jinan, Shandong, 250012, China; National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, Shandong, 250012, China; Key Laboratory of Reproductive Endocrinology (Shandong University), Ministry of Education, Jinan, Shandong, 250012, China; Shandong Technology Innovation Center for Reproductive Health, Jinan, Shandong, 250012, China; Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, Shandong, 250012, China; Shandong Key Laboratory of Reproductive Medicine, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, 250012, China; Research Unit of Gametogenesis and Health of ART-Offspring, Chinese Academy of Medical Sciences (No.2021RU001), Jinan, Shandong, 250012, China.
| | - Yueran Zhao
- State Key Laboratory of Reproductive Medicine and Offspring Health, Shandong University, Jinan, Shandong, 250012, China; National Research Center for Assisted Reproductive Technology and Reproductive Genetics, Shandong University, Jinan, Shandong, 250012, China; Key Laboratory of Reproductive Endocrinology (Shandong University), Ministry of Education, Jinan, Shandong, 250012, China; Shandong Technology Innovation Center for Reproductive Health, Jinan, Shandong, 250012, China; Shandong Provincial Clinical Research Center for Reproductive Health, Jinan, Shandong, 250012, China; Shandong Key Laboratory of Reproductive Medicine, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, 250012, China; Research Unit of Gametogenesis and Health of ART-Offspring, Chinese Academy of Medical Sciences (No.2021RU001), Jinan, Shandong, 250012, China.
| |
Collapse
|
2
|
Orth T, Pyanova A, Lux S, Kaiser P, Reinheimer I, Nielsen DL, Khalid JA, Rognant S, Jepps TA, Matchkov VV, Schubert R. Vascular smooth muscle BK channels limit ouabain-induced vasocontraction: Dual role of the Na/K-ATPase as a hub for Src-kinase and the Na/Ca-exchanger. FASEB J 2024; 38:e70046. [PMID: 39259502 DOI: 10.1096/fj.202400628rr] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2024] [Revised: 08/20/2024] [Accepted: 08/29/2024] [Indexed: 09/13/2024]
Abstract
Large-conductance, calcium-activated potassium channels (BK channels) and the Na/K-ATPase are expressed universally in vascular smooth muscle. The Na/K-ATPase may act via changes in the intracellular Ca2+ concentration mediated by the Na/Ca exchanger (NCX) and via Src kinase. Both pathways are known to regulate BK channels. Whether BK channels functionally interact in vascular smooth muscle cells with the Na/K-ATPase remains to be elucidated. Thus, this study addressed the hypothesis that BK channels limit ouabain-induced vasocontraction. Rat mesenteric arteries were studied using isometric myography, FURA-2 fluorimetry and proximity ligation assay. The BK channel blocker iberiotoxin potentiated methoxamine-induced contractions. The cardiotonic steroid, ouabain (10-5 M), induced a contractile effect of IBTX at basal tension prior to methoxamine administration and enhanced the pro-contractile effect of IBTX on methoxamine-induced contractions. These facilitating effects of ouabain were prevented by the inhibition of either NCX or Src kinase. Furthermore, inhibition of NCX or Src kinase reduced the BK channel-mediated negative feedback regulation of arterial contraction. The effects of NCX and Src kinase inhibition were independent of each other. Co-localization of the Na/K-ATPase and the BK channel was evident. Our data suggest that BK channels limit ouabain-induced vasocontraction by a dual mechanism involving the NCX and Src kinase signaling. The data propose that the NCX and the Src kinase pathways, mediating the ouabain-induced activation of the BK channel, act in an independent manner.
Collapse
Affiliation(s)
- Tobias Orth
- Research Division Cardiovascular Physiology, European Center of Angioscience (ECAS), Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Anastasia Pyanova
- Physiology, Institute of Theoretical Medicine, Faculty of Medicine, University of Augsburg, Augsburg, Germany
| | - Simon Lux
- Research Division Cardiovascular Physiology, European Center of Angioscience (ECAS), Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Peter Kaiser
- Research Division Cardiovascular Physiology, European Center of Angioscience (ECAS), Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Isabel Reinheimer
- Research Division Cardiovascular Physiology, European Center of Angioscience (ECAS), Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | | | - Josef Ali Khalid
- Department of Biomedicine, Health, Aarhus University, Aarhus, Denmark
| | - Salomé Rognant
- Department of Biomedical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Thomas A Jepps
- Department of Biomedical Sciences, University of Copenhagen, Copenhagen, Denmark
| | | | - Rudolf Schubert
- Research Division Cardiovascular Physiology, European Center of Angioscience (ECAS), Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
- Physiology, Institute of Theoretical Medicine, Faculty of Medicine, University of Augsburg, Augsburg, Germany
| |
Collapse
|
3
|
Eshaq AM, Flanagan TW, Hassan SY, Al Asheikh SA, Al-Amoudi WA, Santourlidis S, Hassan SL, Alamodi MO, Bendhack ML, Alamodi MO, Haikel Y, Megahed M, Hassan M. Non-Receptor Tyrosine Kinases: Their Structure and Mechanistic Role in Tumor Progression and Resistance. Cancers (Basel) 2024; 16:2754. [PMID: 39123481 PMCID: PMC11311543 DOI: 10.3390/cancers16152754] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2024] [Revised: 06/30/2024] [Accepted: 07/29/2024] [Indexed: 08/12/2024] Open
Abstract
Protein tyrosine kinases (PTKs) function as key molecules in the signaling pathways in addition to their impact as a therapeutic target for the treatment of many human diseases, including cancer. PTKs are characterized by their ability to phosphorylate serine, threonine, or tyrosine residues and can thereby rapidly and reversibly alter the function of their protein substrates in the form of significant changes in protein confirmation and affinity for their interaction with protein partners to drive cellular functions under normal and pathological conditions. PTKs are classified into two groups: one of which represents tyrosine kinases, while the other one includes the members of the serine/threonine kinases. The group of tyrosine kinases is subdivided into subgroups: one of them includes the member of receptor tyrosine kinases (RTKs), while the other subgroup includes the member of non-receptor tyrosine kinases (NRTKs). Both these kinase groups function as an "on" or "off" switch in many cellular functions. NRTKs are enzymes which are overexpressed and activated in many cancer types and regulate variable cellular functions in response to extracellular signaling-dependent mechanisms. NRTK-mediated different cellular functions are regulated by kinase-dependent and kinase-independent mechanisms either in the cytoplasm or in the nucleus. Thus, targeting NRTKs is of great interest to improve the treatment strategy of different tumor types. This review deals with the structure and mechanistic role of NRTKs in tumor progression and resistance and their importance as therapeutic targets in tumor therapy.
Collapse
Affiliation(s)
- Abdulaziz M. Eshaq
- Department of Epidemiology and Biostatistics, Milken Institute School of Public Health, George Washington University, Washington, DC 20052, USA;
- College of Medicine, Alfaisal University, Riyadh 11533, Saudi Arabia; (S.A.A.A.); (W.A.A.-A.); (M.O.A.); (M.O.A.)
| | - Thomas W. Flanagan
- Department of Pharmacology and Experimental Therapeutics, LSU Health Sciences Center, New Orleans, LA 70112, USA;
| | - Sofie-Yasmin Hassan
- Department of Pharmacy, Faculty of Science, Heinrich-Heine University Duesseldorf, 40225 Duesseldorf, Germany;
| | - Sara A. Al Asheikh
- College of Medicine, Alfaisal University, Riyadh 11533, Saudi Arabia; (S.A.A.A.); (W.A.A.-A.); (M.O.A.); (M.O.A.)
| | - Waleed A. Al-Amoudi
- College of Medicine, Alfaisal University, Riyadh 11533, Saudi Arabia; (S.A.A.A.); (W.A.A.-A.); (M.O.A.); (M.O.A.)
| | - Simeon Santourlidis
- Institute of Cell Therapeutics and Diagnostics, University Medical Center of Duesseldorf, 40225 Duesseldorf, Germany;
| | - Sarah-Lilly Hassan
- Department of Chemistry, Faculty of Science, Heinrich-Heine University Duesseldorf, 40225 Duesseldorf, Germany;
| | - Maryam O. Alamodi
- College of Medicine, Alfaisal University, Riyadh 11533, Saudi Arabia; (S.A.A.A.); (W.A.A.-A.); (M.O.A.); (M.O.A.)
| | - Marcelo L. Bendhack
- Department of Urology, Red Cross University Hospital, Positivo University, Rua Mauá 1111, Curitiba 80030-200, Brazil;
| | - Mohammed O. Alamodi
- College of Medicine, Alfaisal University, Riyadh 11533, Saudi Arabia; (S.A.A.A.); (W.A.A.-A.); (M.O.A.); (M.O.A.)
| | - Youssef Haikel
- Institut National de la Santé et de la Recherche Médicale, University of Strasbourg, 67000 Strasbourg, France;
- Department of Operative Dentistry and Endodontics, Dental Faculty, 67000 Strasbourg, France
- Pôle de Médecine et Chirurgie Bucco-Dentaire, Hôpital Civil, Hôpitaux Universitaire de Strasbourg, 67000 Strasbourg, France
| | - Mossad Megahed
- Clinic of Dermatology, University Hospital of Aachen, 52074 Aachen, Germany;
| | - Mohamed Hassan
- Institut National de la Santé et de la Recherche Médicale, University of Strasbourg, 67000 Strasbourg, France;
- Department of Operative Dentistry and Endodontics, Dental Faculty, 67000 Strasbourg, France
- Research Laboratory of Surgery-Oncology, Department of Surgery, Tulane University School of Medicine, New Orleans, LA 70112, USA
| |
Collapse
|
4
|
Parker K, Zhang Y, Anchondo G, Smith A, Guerrero Pacheco S, Kondo T, Su L. Combination of HDAC and FYN inhibitors in synovial sarcoma treatment. Front Cell Dev Biol 2024; 12:1422452. [PMID: 39045458 PMCID: PMC11264242 DOI: 10.3389/fcell.2024.1422452] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2024] [Accepted: 06/17/2024] [Indexed: 07/25/2024] Open
Abstract
The SS18-SSX fusion protein is an oncogenic driver in synovial sarcoma. At the molecular level, SS18-SSX functions as both an activator and a repressor to coordinate transcription of different genes responsible for tumorigenesis. Here, we identify the proto-oncogene FYN as a new SS18-SSX target gene and examine its relation to synovial sarcoma therapy. FYN is a tyrosine kinase that promotes cancer growth, metastasis and therapeutic resistance, but SS18-SSX appears to negatively regulate FYN expression in synovial sarcoma cells. Using both genetic and histone deacetylase inhibitor (HDACi)-based pharmacologic approaches, we show that suppression of SS18-SSX leads to FYN reactivation. In support of this notion, we find that blockade of FYN activity synergistically enhances HDACi action to reduce synovial sarcoma cell proliferation and migration. Our results support a role for FYN in attenuation of anti-cancer activity upon inhibition of SS18-SSX function and demonstrate the feasibility of targeting FYN to improve the effectiveness of HDACi treatment against synovial sarcoma.
Collapse
Affiliation(s)
- Kyra Parker
- Department of Biology, Jacksonville State University, Jacksonville, AL, United States
| | - Yanfeng Zhang
- Department of Genetics, The University of Alabama at Birmingham, Birmingham, AL, United States
| | - Gavin Anchondo
- Department of Biology, Jacksonville State University, Jacksonville, AL, United States
| | - Ashlyn Smith
- Department of Biology, Jacksonville State University, Jacksonville, AL, United States
| | | | | | - Le Su
- Department of Biology, Jacksonville State University, Jacksonville, AL, United States
| |
Collapse
|
5
|
İçen Taşkın I, Gürbüz S, Koç A, Kocabay S, Yolbaş S, Keser MF. The roles of SFKs in the regulation of proinflammatory cytokines and NLRP3 in familial mediterranean fever patients. Cytokine 2024; 179:156615. [PMID: 38640560 DOI: 10.1016/j.cyto.2024.156615] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2024] [Revised: 04/02/2024] [Accepted: 04/09/2024] [Indexed: 04/21/2024]
Abstract
Familial Mediterranean Fever (FMF) is caused by mutations in pyrin, a protein produced in innate immune cells that regulates the development of interleukin (IL)-1β by interacting with caspase-1 and other components of inflammasomes. Although overexpression of proinflammatory cytokines have been observed in FMF patients, no studies have been conducted on the role of Src family kinases (SFKs). The purpose of this study was to examine the impact of SFKs on the modulation of IL-1β, IL-6, IL-8, TNF-α, and NLRP3 inflammasome in patients with FMF. The study included 20 FMF patients and 20 controls. Peripheral blood mononuclear cells (PBMCs) were isolated by density gradient centrifugation. Protein expression levels of SFKs members were measured by western blot. The effect of lipopolysaccharide-induced (LPS) activation and PP2- induced inhibition of SFKs on NLRP3 and IL-1β, IL 6, IL-8, TNF-α were examined by western blot and flow cytometry respectively. Patients with FMF have considerably greater levels of Lck expression. In addition, patients had a substantially greater basal level of NLRP3 than the control group (*p = 0.016). Most importantly, the levels of IL-1 β were elevated with LPS stimulation and reduced with PP2 inhibition in FMF patients. These results suggest that SFKs are effective in regulation of IL-1 β in FMF patients.
Collapse
Affiliation(s)
- Irmak İçen Taşkın
- Department of Molecular Biology and Genetics, Faculty of Science and Art, Inonu University, Malatya, Turkey.
| | - Sevim Gürbüz
- Department of Molecular Biology and Genetics, Faculty of Science and Art, Inonu University, Malatya, Turkey
| | - Ahmet Koç
- Department of Genetics, Faculty of Medicine, Inonu University, Malatya, Turkey
| | - Samet Kocabay
- Department of Molecular Biology and Genetics, Faculty of Science and Art, Inonu University, Malatya, Turkey
| | - Servet Yolbaş
- Department of Rheumatology, Faculty of Medicine, Inonu University, Malatya, Turkey
| | | |
Collapse
|
6
|
Du R, Wang P, Tian N. CD3ζ-Mediated Signaling Protects Retinal Ganglion Cells in Glutamate Excitotoxicity of the Retina. Cells 2024; 13:1006. [PMID: 38920637 PMCID: PMC11201742 DOI: 10.3390/cells13121006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2024] [Revised: 05/28/2024] [Accepted: 06/06/2024] [Indexed: 06/27/2024] Open
Abstract
Excessive levels of glutamate activity could potentially damage and kill neurons. Glutamate excitotoxicity is thought to play a critical role in many CNS and retinal diseases. Accordingly, glutamate excitotoxicity has been used as a model to study neuronal diseases. Immune proteins, such as major histocompatibility complex (MHC) class I molecules and their receptors, play important roles in many neuronal diseases, while T-cell receptors (TCR) are the primary receptors of MHCI. We previously showed that a critical component of TCR, CD3ζ, is expressed by mouse retinal ganglion cells (RGCs). The mutation of CD3ζ or MHCI molecules compromises the development of RGC structure and function. In this study, we investigated whether CD3ζ-mediated molecular signaling regulates RGC death in glutamate excitotoxicity. We show that mutation of CD3ζ significantly increased RGC survival in NMDA-induced excitotoxicity. In addition, we found that several downstream molecules of TCR, including Src (proto-oncogene tyrosine-protein kinase) family kinases (SFKs) and spleen tyrosine kinase (Syk), are expressed by RGCs. Selective inhibition of an SFK member, Hck, or Syk members, Syk or Zap70, significantly increased RGC survival in NMDA-induced excitotoxicity. These results provide direct evidence to reveal the underlying molecular mechanisms that control RGC death under disease conditions.
Collapse
Affiliation(s)
- Rui Du
- Department of Ophthalmology and Visual Science, University of Utah School of Medicine, Salt Lake City, UT 84132, USA; (R.D.); (P.W.)
| | - Ping Wang
- Department of Ophthalmology and Visual Science, University of Utah School of Medicine, Salt Lake City, UT 84132, USA; (R.D.); (P.W.)
| | - Ning Tian
- Department of Ophthalmology and Visual Science, University of Utah School of Medicine, Salt Lake City, UT 84132, USA; (R.D.); (P.W.)
- Department of Neurobiology, University of Utah, Salt Lake City, UT 84132, USA
- Department of Biomedical Engineering, University of Utah, Salt Lake City, UT 84132, USA
- Veterans Affairs Medical Center, Salt Lake City, UT 84148, USA
| |
Collapse
|
7
|
Guillet S, Lazarov T, Jordan N, Boisson B, Tello M, Craddock B, Zhou T, Nishi C, Bareja R, Yang H, Rieux-Laucat F, Lorenzo RIF, Dyall SD, Isenberg D, D’Cruz D, Lachmann N, Elemento O, Viale A, Socci ND, Abel L, Nagata S, Huse M, Miller WT, Casanova JL, Geissmann F. ACK1 and BRK non-receptor tyrosine kinase deficiencies are associated with familial systemic lupus and involved in efferocytosis. MEDRXIV : THE PREPRINT SERVER FOR HEALTH SCIENCES 2024:2024.02.15.24302255. [PMID: 38883731 PMCID: PMC11177913 DOI: 10.1101/2024.02.15.24302255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2024]
Abstract
Systemic Lupus Erythematosus (SLE) is an autoimmune disease, the pathophysiology and genetic basis of which are incompletely understood. Using a forward genetic screen in multiplex families with systemic lupus erythematosus (SLE) we identified an association between SLE and compound heterozygous deleterious variants in the non-receptor tyrosine kinases (NRTKs) ACK1 and BRK. Experimental blockade of ACK1 or BRK increased circulating autoantibodies in vivo in mice and exacerbated glomerular IgG deposits in an SLE mouse model. Mechanistically, non-receptor tyrosine kinases (NRTKs) regulate activation, migration, and proliferation of immune cells. We found that the patients' ACK1 and BRK variants impair efferocytosis, the MERTK-mediated anti-inflammatory response to apoptotic cells, in human induced Pluripotent Stem Cell (hiPSC)-derived macrophages, which may contribute to SLE pathogenesis. Overall, our data suggest that ACK1 and BRK deficiencies are associated with human SLE and impair efferocytosis in macrophages.
Collapse
Affiliation(s)
- Stephanie Guillet
- Immunology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, New York 10065, USA
- Ecole doctorale Bio Sorbonne Paris Cité, Université Paris Descartes-Sorbonne Paris Cité.Paris, France
| | - Tomi Lazarov
- Immunology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, New York 10065, USA
- Immunology and Microbial Pathogenesis Program, Weill Cornell Graduate School of MedicalSciences, New York, New York 10065, USA
| | - Natasha Jordan
- Centre for Molecular and Cellular Biology of Inflammation (CMCBI), King’s College London and Louise Coote Lupus Unit, Guy’s and Thomas’ Hospitals, London SE1 1UL, UK
| | - Bertrand Boisson
- St. Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller Branch, The Rockefeller University, New York, 10065 NY, USA
- University of Paris Cité, Imagine Institute, Paris, France
| | - Maria Tello
- Immunology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, New York 10065, USA
| | - Barbara Craddock
- Department of Physiology and Biophysics, Stony Brook University School of Medicine, Stony Brook, NY, 11794-8661
| | - Ting Zhou
- SKI Stem Cell Research Core, Memorial Sloan Kettering Cancer Center, New York, New York 10065, USA
| | - Chihiro Nishi
- Laboratory of Biochemistry & Immunology, World Premier International Immunology Frontier Research Center, Osaka University, Suita, Osaka 565-0871
| | - Rohan Bareja
- Cary and Israel Englander Institute for Precision Medicine, Institute for Computational Biomedicine, Meyer Cancer Center Weill Cornell Medical College, New York, New York 10065, USA
| | - Hairu Yang
- Immunology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, New York 10065, USA
| | | | | | - Sabrina D. Dyall
- Department of Biosciences and Ocean Studies, Faculty of Science, University of Mauritius, Reduit, Mauritius
| | - David Isenberg
- Centre for Rheumatology, Division of Medicine, University College London, The Rayne Building, University College London
| | - David D’Cruz
- Centre for Molecular and Cellular Biology of Inflammation (CMCBI), King’s College London and Louise Coote Lupus Unit, Guy’s and Thomas’ Hospitals, London SE1 1UL, UK
| | - Nico Lachmann
- Institute of Experimental Hematology, REBIRTH Cluster of Excellence, Hannover Medical School, Hannover 30625, Germany
| | - Olivier Elemento
- Cary and Israel Englander Institute for Precision Medicine, Institute for Computational Biomedicine, Meyer Cancer Center Weill Cornell Medical College, New York, New York 10065, USA
| | - Agnes Viale
- Marie-Josée & Henry R. Kravis Center for Molecular Oncology, Memorial Sloan Kettering Cancer Center, New York, New York 10065, USA
| | - Nicholas D. Socci
- Marie-Josée & Henry R. Kravis Center for Molecular Oncology, Memorial Sloan Kettering Cancer Center, New York, New York 10065, USA
- Bioinformatics Core, Memorial Sloan Kettering Cancer Center, New York, New York 10065, USA
| | - Laurent Abel
- St. Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller Branch, The Rockefeller University, New York, 10065 NY, USA
- University of Paris Cité, Imagine Institute, Paris, France
| | - Shigekazu Nagata
- Laboratory of Biochemistry & Immunology, World Premier International Immunology Frontier Research Center, Osaka University, Suita, Osaka 565-0871
| | - Morgan Huse
- Immunology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, New York 10065, USA
| | - W. Todd Miller
- Department of Physiology and Biophysics, Stony Brook University School of Medicine, Stony Brook, NY, 11794-8661
| | - Jean-Laurent Casanova
- St. Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller Branch, The Rockefeller University, New York, 10065 NY, USA
- University of Paris Cité, Imagine Institute, Paris, France
- Howard Hughes Medical Institute, New York, 10065 NY, USA
- Lab of Human Genetics of Infectious Diseases, INSERM, Necker Hospital for Sick Children, Paris, France, EU
- Department of Pediatrics, Necker Hospital for Sick Children, Paris, France, EU
| | - Frederic Geissmann
- Immunology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, New York 10065, USA
- Immunology and Microbial Pathogenesis Program, Weill Cornell Graduate School of MedicalSciences, New York, New York 10065, USA
- Centre for Molecular and Cellular Biology of Inflammation (CMCBI), King’s College London and Louise Coote Lupus Unit, Guy’s and Thomas’ Hospitals, London SE1 1UL, UK
| |
Collapse
|
8
|
Almoyad MAA, Alsayari A, Wahab S, Chandra S. Hematopoietic cell kinase as a nexus for drug repurposing: implications for cancer and HIV therapy. J Biomol Struct Dyn 2024:1-11. [PMID: 38529911 DOI: 10.1080/07391102.2024.2331092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Accepted: 03/10/2024] [Indexed: 03/27/2024]
Abstract
Hematopoietic cell kinase (HCK) has emerged as a potential target for therapeutic intervention in cancer and HIV infection because of its critical role in critical signaling pathways. Repurposing FDA-approved drugs offers an efficient strategy to identify new treatment options. Here, we address the need for novel therapies in cancer and HIV by investigating the potential of repurposed drugs against HCK. Our goal was to identify promising drug candidates with high binding affinities and specific interactions within the HCK binding pocket. We employed an integrated computational approach combining molecular docking and extensive molecular dynamics (MD) simulations. Initially, we analyzed the binding affinities and interaction patterns of a library of FDA-approved drugs sourced from DrugBank. After careful analysis, we focused on two compounds, Nilotinib and Radotinib, which exhibit exceptional binding affinities and specificity to the HCK binding pocket, including the active site. Additionally, we assessed the pharmacological properties of Nilotinib and Radotinib, making them attractive candidates for further drug development. Extensive all-atom MD simulations spanning 200 nanoseconds (ns) elucidated the conformational dynamics and stability of the HCK-Nilotinib and HCK-Radotinib complexes. These simulations demonstrate the robustness of these complexes over extended timescales. Our findings highlighted the potential of Nilotinib and Radotinib as promising candidates against HCK that offer valuable insights into their binding mechanisms. This computational approach provides a comprehensive understanding of drug interactions with HCK and sets the stage for future experimental validation and drug development endeavors.Communicated by Ramaswamy H. Sarma.
Collapse
Affiliation(s)
- Mohammad Ali Abdullah Almoyad
- Department of Basic Medical Sciences, College of Applied Medical Sciences, King Khalid University, Khamis Mushyt, Saudi Arabia
| | - Abdulrhman Alsayari
- Department of Pharmacognosy, College of Pharmacy, King Khalid University, Saudi Arabia
| | - Shadma Wahab
- Department of Pharmacognosy, College of Pharmacy, King Khalid University, Saudi Arabia
| | - Subhash Chandra
- Department of Botany, Soban Singh Jeena University, Almora, India
| |
Collapse
|
9
|
Shi L, Nadjar-Boger E, Jafarinia H, Carlier A, Wolfenson H. YAP mediates apoptosis through failed integrin adhesion reinforcement. Cell Rep 2024; 43:113811. [PMID: 38393944 DOI: 10.1016/j.celrep.2024.113811] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Revised: 12/26/2023] [Accepted: 02/01/2024] [Indexed: 02/25/2024] Open
Abstract
Extracellular matrix (ECM) rigidity is a major effector of cell fate decisions. Whereas cell proliferation on stiff matrices, wherein Yes-associated protein (YAP) plays a pivotal role, is well documented, activation of apoptosis in response to soft matrices is poorly understood. Here, we show that YAP drives the apoptotic decision as well. We find that in cells on soft matrices, YAP is recruited to small adhesions, phosphorylated at the Y357 residue, and translocated into the nucleus, ultimately leading to apoptosis. In contrast, Y357 phosphorylation levels are dramatically low in large adhesions on stiff matrices. Furthermore, mild attenuation of actomyosin contractility allows adhesion growth on soft matrices, leading to reduced Y357 phosphorylation levels and resulting in cell growth. These findings indicate that failed adhesion reinforcement drives rigidity-dependent apoptosis through YAP and that this decision is not determined solely by ECM rigidity but rather by the balance between cellular forces and ECM rigidity.
Collapse
Affiliation(s)
- Lidan Shi
- Department of Genetics and Developmental Biology, Rappaport Faculty of Medicine, Technion - Israel Institute of Technology, Haifa 31096, Israel
| | - Elisabeth Nadjar-Boger
- Department of Genetics and Developmental Biology, Rappaport Faculty of Medicine, Technion - Israel Institute of Technology, Haifa 31096, Israel
| | - Hamidreza Jafarinia
- MERLN Institute for Technology-Inspired Regenerative Medicine, Department of Cell Biology-Inspired Tissue Engineering, Maastricht University, 6200 MD Maastricht, the Netherlands
| | - Aurélie Carlier
- MERLN Institute for Technology-Inspired Regenerative Medicine, Department of Cell Biology-Inspired Tissue Engineering, Maastricht University, 6200 MD Maastricht, the Netherlands
| | - Haguy Wolfenson
- Department of Genetics and Developmental Biology, Rappaport Faculty of Medicine, Technion - Israel Institute of Technology, Haifa 31096, Israel.
| |
Collapse
|
10
|
Xiong C, Deng J, Wang X, Hou Q, Zhuang S. Pharmacological inhibition of Src family kinases attenuates hyperuricemic nephropathy. Front Pharmacol 2024; 15:1352730. [PMID: 38576481 PMCID: PMC10991786 DOI: 10.3389/fphar.2024.1352730] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Accepted: 03/06/2024] [Indexed: 04/06/2024] Open
Abstract
Hyperuricemia is an independent risk factor for chronic kidney disease and contributes to renal fibrosis. This study aims to investigate the effect of Src family kinase (SFK) inhibition on the development of hyperuricemic nephropathy (HN) and the mechanisms involved. In a rat model of HN, feeding rats a mixture of adenine and potassium oxonate increased Src phosphorylation, severe glomerular sclerosis, and renal interstitial fibrosis, accompanied by renal dysfunction and increased urine microalbumin excretion. Administration of PP1, a highly selective SFK inhibitor, prevented renal dysfunction, reduced urine microalbumin, and inhibited activation of renal interstitial fibroblasts and expression of extracellular proteins. PP1 treatment also inhibited hyperuricemia-induced activation of the TGF-β1/Smad3, STAT3, ERK1/2, and NF-κB signaling pathways and expression of multiple profibrogenic cytokines/chemokines in the kidney. Furthermore, PP1 treatment significantly reduced serum uric acid levels and xanthine oxidase activity. Thus, blocking Src can attenuate development of HN via a mechanism associated with the suppression of TGF-β1 signaling, inflammation, and uric acid production. The results suggest that Src inhibition might be a promising therapeutic strategy for HN.
Collapse
Affiliation(s)
- Chongxiang Xiong
- Department of Nephrology, The First Affiliated Hospital of Dongguan, Guangdong Medical University, Dongguan, Guangdong, China
| | - Jin Deng
- Department of Nephrology, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, China
| | - Xin Wang
- Department of Nephrology, The First Affiliated Hospital of Dongguan, Guangdong Medical University, Dongguan, Guangdong, China
| | - Qidi Hou
- Department of Nephrology, The First Affiliated Hospital of Dongguan, Guangdong Medical University, Dongguan, Guangdong, China
| | - Shougang Zhuang
- Department of Medicine, Rhode Island Hospital and Brown University School of Medicine, Providence, RI, United States
- Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| |
Collapse
|
11
|
Li Z, Lu W, Beyett TS, Ficarro SB, Jiang J, Tse J, Kim AYJ, Marto JA, Che J, Jänne PA, Eck MJ, Zhang T, Gray NS. ZNL0325, a Pyrazolopyrimidine-Based Covalent Probe, Demonstrates an Alternative Binding Mode for Kinases. J Med Chem 2024; 67:2837-2848. [PMID: 38300264 DOI: 10.1021/acs.jmedchem.3c01891] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2024]
Abstract
The pyrazolopyrimidine (PP) heterocycle is a versatile and widely deployed core scaffold for the development of kinase inhibitors. Typically, a 4-amino-substituted pyrazolopyrimidine binds in the ATP-binding pocket in a conformation analogous to the 6-aminopurine of ATP. Here, we report the discovery of ZNL0325 which exhibits a flipped binding mode where the C3 position is oriented toward the ribose binding pocket. ZNL0325 and its analogues feature an acrylamide side chain at the C3 position which is capable of forming a covalent bond with multiple kinases that possess a cysteine at the αD-1 position including BTK, EGFR, BLK, and JAK3. These findings suggest that the ability to form a covalent bond can override the preferred noncovalent binding conformation of the heterocyclic core and provides an opportunity to create structurally distinct covalent kinase inhibitors.
Collapse
Affiliation(s)
- Zhengnian Li
- Department of Chemical and Systems Biology, Chem-H and Stanford Cancer Institute, Stanford School of Medicine, Stanford University, Stanford, California 94305, United States
| | - Wenchao Lu
- Lingang Laboratory, Shanghai 200031, China
| | - Tyler S Beyett
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, Massachusetts 02215, United States
- Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, Massachusetts 02215, United States
| | - Scott B Ficarro
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, Massachusetts 02215, United States
- Blais Proteomics Center, Center for Emergent Drug Targets, Dana-Farber Cancer Institute, Boston, Massachusetts 02215, United States
- Department of Pathology, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts 02215, United States
| | - Jie Jiang
- Lowe Center for Thoracic Oncology, Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts 02215, United States
- Department of Medicine, Harvard Medical School, Boston, Massachusetts 02215, United States
| | - Jason Tse
- Department of Chemical and Systems Biology, Chem-H and Stanford Cancer Institute, Stanford School of Medicine, Stanford University, Stanford, California 94305, United States
| | - Audrey Yong-Ju Kim
- Department of Chemical and Systems Biology, Chem-H and Stanford Cancer Institute, Stanford School of Medicine, Stanford University, Stanford, California 94305, United States
| | - Jarrod A Marto
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, Massachusetts 02215, United States
- Blais Proteomics Center, Center for Emergent Drug Targets, Dana-Farber Cancer Institute, Boston, Massachusetts 02215, United States
- Department of Pathology, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts 02215, United States
| | - Jianwei Che
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, Massachusetts 02215, United States
- Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, Massachusetts 02215, United States
| | - Pasi A Jänne
- Lowe Center for Thoracic Oncology, Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts 02215, United States
- Department of Medicine, Harvard Medical School, Boston, Massachusetts 02215, United States
| | - Michael J Eck
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, Massachusetts 02215, United States
- Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, Massachusetts 02215, United States
| | - Tinghu Zhang
- Department of Chemical and Systems Biology, Chem-H and Stanford Cancer Institute, Stanford School of Medicine, Stanford University, Stanford, California 94305, United States
| | - Nathanael S Gray
- Department of Chemical and Systems Biology, Chem-H and Stanford Cancer Institute, Stanford School of Medicine, Stanford University, Stanford, California 94305, United States
| |
Collapse
|
12
|
Salyer LG, Salhi HE, Brundage EA, Shettigar V, Sturgill SL, Zanella H, Templeton B, Abay E, Emmer KM, Lowe J, Rafael-Fortney JA, Parinandi N, Foster DB, McKinsey TA, Woulfe KC, Ziolo MT, Biesiadecki BJ. Troponin I Tyrosine Phosphorylation Beneficially Accelerates Diastolic Function. Circ Res 2024; 134:33-45. [PMID: 38095088 PMCID: PMC10872382 DOI: 10.1161/circresaha.123.323132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Accepted: 11/28/2023] [Indexed: 01/06/2024]
Abstract
BACKGROUND A healthy heart is able to modify its function and increase relaxation through post-translational modifications of myofilament proteins. While there are known examples of serine/threonine kinases directly phosphorylating myofilament proteins to modify heart function, the roles of tyrosine (Y) phosphorylation to directly modify heart function have not been demonstrated. The myofilament protein TnI (troponin I) is the inhibitory subunit of the troponin complex and is a key regulator of cardiac contraction and relaxation. We previously demonstrated that TnI-Y26 phosphorylation decreases calcium-sensitive force development and accelerates calcium dissociation, suggesting a novel role for tyrosine kinase-mediated TnI-Y26 phosphorylation to regulate cardiac relaxation. Therefore, we hypothesize that increasing TnI-Y26 phosphorylation will increase cardiac relaxation in vivo and be beneficial during pathological diastolic dysfunction. METHODS The signaling pathway involved in TnI-Y26 phosphorylation was predicted in silico and validated by tyrosine kinase activation and inhibition in primary adult murine cardiomyocytes. To investigate how TnI-Y26 phosphorylation affects cardiac muscle, structure, and function in vivo, we developed a novel TnI-Y26 phosphorylation-mimetic mouse that was subjected to echocardiography, pressure-volume loop hemodynamics, and myofibril mechanical studies. TnI-Y26 phosphorylation-mimetic mice were further subjected to the nephrectomy/DOCA (deoxycorticosterone acetate) model of diastolic dysfunction to investigate the effects of increased TnI-Y26 phosphorylation in disease. RESULTS Src tyrosine kinase is sufficient to phosphorylate TnI-Y26 in cardiomyocytes. TnI-Y26 phosphorylation accelerates in vivo relaxation without detrimental structural or systolic impairment. In a mouse model of diastolic dysfunction, TnI-Y26 phosphorylation is beneficial and protects against the development of disease. CONCLUSIONS We have demonstrated that tyrosine kinase phosphorylation of TnI is a novel mechanism to directly and beneficially accelerate myocardial relaxation in vivo.
Collapse
Affiliation(s)
- Lorien G Salyer
- Department of Physiology and Cell Biology, Davis Heart and Lung Research Institute (L.G.S., H.E.S., E.A.B., V.S., S.L.S., H.Z., B.T., E.A., J.L., J.A.R.-F., M.T.Z., B.J.B.), Ohio State University, Columbus
| | - Hussam E Salhi
- Department of Physiology and Cell Biology, Davis Heart and Lung Research Institute (L.G.S., H.E.S., E.A.B., V.S., S.L.S., H.Z., B.T., E.A., J.L., J.A.R.-F., M.T.Z., B.J.B.), Ohio State University, Columbus
| | - Elizabeth A Brundage
- Department of Physiology and Cell Biology, Davis Heart and Lung Research Institute (L.G.S., H.E.S., E.A.B., V.S., S.L.S., H.Z., B.T., E.A., J.L., J.A.R.-F., M.T.Z., B.J.B.), Ohio State University, Columbus
| | - Vikram Shettigar
- Department of Physiology and Cell Biology, Davis Heart and Lung Research Institute (L.G.S., H.E.S., E.A.B., V.S., S.L.S., H.Z., B.T., E.A., J.L., J.A.R.-F., M.T.Z., B.J.B.), Ohio State University, Columbus
| | - Sarah L Sturgill
- Department of Physiology and Cell Biology, Davis Heart and Lung Research Institute (L.G.S., H.E.S., E.A.B., V.S., S.L.S., H.Z., B.T., E.A., J.L., J.A.R.-F., M.T.Z., B.J.B.), Ohio State University, Columbus
| | - Helena Zanella
- Department of Physiology and Cell Biology, Davis Heart and Lung Research Institute (L.G.S., H.E.S., E.A.B., V.S., S.L.S., H.Z., B.T., E.A., J.L., J.A.R.-F., M.T.Z., B.J.B.), Ohio State University, Columbus
| | - Benjamin Templeton
- Department of Physiology and Cell Biology, Davis Heart and Lung Research Institute (L.G.S., H.E.S., E.A.B., V.S., S.L.S., H.Z., B.T., E.A., J.L., J.A.R.-F., M.T.Z., B.J.B.), Ohio State University, Columbus
| | - Eaman Abay
- Department of Physiology and Cell Biology, Davis Heart and Lung Research Institute (L.G.S., H.E.S., E.A.B., V.S., S.L.S., H.Z., B.T., E.A., J.L., J.A.R.-F., M.T.Z., B.J.B.), Ohio State University, Columbus
| | - Kathryn M Emmer
- University Laboratory Animal Resources (K.M.E.), Ohio State University, Columbus
| | - Jeovanna Lowe
- Department of Physiology and Cell Biology, Davis Heart and Lung Research Institute (L.G.S., H.E.S., E.A.B., V.S., S.L.S., H.Z., B.T., E.A., J.L., J.A.R.-F., M.T.Z., B.J.B.), Ohio State University, Columbus
| | - Jill A Rafael-Fortney
- Department of Physiology and Cell Biology, Davis Heart and Lung Research Institute (L.G.S., H.E.S., E.A.B., V.S., S.L.S., H.Z., B.T., E.A., J.L., J.A.R.-F., M.T.Z., B.J.B.), Ohio State University, Columbus
| | - Narasimham Parinandi
- Division of Pulmonary, Critical Care and Sleep Medicine (N.P.), Ohio State University, Columbus
| | - D Brian Foster
- Division of Cardiology, Department of Medicine, The Johns Hopkins University School of Medicine, Baltimore, MD (D.B.F.)
| | - Timothy A McKinsey
- Department of Medicine, Division of Cardiology (T.A.M., K.C.W.), University of Colorado Anschutz Medical Campus, Aurora
- Consortium for Fibrosis Research and Translation (T.A.M.), University of Colorado Anschutz Medical Campus, Aurora
| | - Kathleen C Woulfe
- Department of Medicine, Division of Cardiology (T.A.M., K.C.W.), University of Colorado Anschutz Medical Campus, Aurora
| | - Mark T Ziolo
- Department of Physiology and Cell Biology, Davis Heart and Lung Research Institute (L.G.S., H.E.S., E.A.B., V.S., S.L.S., H.Z., B.T., E.A., J.L., J.A.R.-F., M.T.Z., B.J.B.), Ohio State University, Columbus
| | - Brandon J Biesiadecki
- Department of Physiology and Cell Biology, Davis Heart and Lung Research Institute (L.G.S., H.E.S., E.A.B., V.S., S.L.S., H.Z., B.T., E.A., J.L., J.A.R.-F., M.T.Z., B.J.B.), Ohio State University, Columbus
| |
Collapse
|
13
|
Ponce A, Larre I, Jimenez L, Roldán ML, Shoshani L, Cereijido M. Ouabain's Influence on TRPV4 Channels of Epithelial Cells: An Exploration of TRPV4 Activity, Expression, and Signaling Pathways. Int J Mol Sci 2023; 24:16687. [PMID: 38069012 PMCID: PMC10705919 DOI: 10.3390/ijms242316687] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Revised: 11/16/2023] [Accepted: 11/21/2023] [Indexed: 12/18/2023] Open
Abstract
Ouabain, a substance originally obtained from plants, is now classified as a hormone because it is produced endogenously in certain animals, including humans. However, its precise effects on the body remain largely unknown. Previous studies have shown that ouabain can influence the phenotype of epithelial cells by affecting the expression of cell-cell molecular components and voltage-gated potassium channels. In this study, we conducted whole-cell clamp assays to determine whether ouabain affects the activity and/or expression of TRPV4 channels. Our findings indicate that ouabain has a statistically significant effect on the density of TRPV4 currents (dITRPV4), with an EC50 of 1.89 nM. Regarding treatment duration, dITRPV4 reaches its peak at around 1 h, followed by a subsequent decline and then a resurgence after 6 h, suggesting a short-term modulatory effect related to on TRPV4 channel activity and a long-term effect related to the promotion of synthesis of new TRPV4 channel units. The enhancement of dITRPV4 induced by ouabain was significantly lower in cells seeded at low density than in cells in a confluent monolayer, indicating that the action of ouabain depends on intercellular contacts. Furthermore, the fact that U73122 and neomycin suppress the effect caused by ouabain in the short term suggests that the short-term induced enhancement of dITRPV4 is due to the depletion of PIP2 stores. In contrast, the fact that the long-term effect is inhibited by PP2, wortmannin, PD, FR18, and IKK16 suggests that cSrc, PI3K, Erk1/2, and NF-kB are among the components included in the signaling pathways.
Collapse
Affiliation(s)
- Arturo Ponce
- Department of Physiology, Biophysics and Neurosciences, CINVESTAV-IPN, Mexico City 07360, Mexico; (L.J.); (M.L.R.); (L.S.); (M.C.)
| | - Isabel Larre
- Department of Physiology, Faculty of Medicine, Universidad Nacional Autónoma de Mexico (UNAM), Mexico City 04510, Mexico;
- Department of Clinical and Translational Science, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV 25755, USA
| | - Lidia Jimenez
- Department of Physiology, Biophysics and Neurosciences, CINVESTAV-IPN, Mexico City 07360, Mexico; (L.J.); (M.L.R.); (L.S.); (M.C.)
| | - Maria Luisa Roldán
- Department of Physiology, Biophysics and Neurosciences, CINVESTAV-IPN, Mexico City 07360, Mexico; (L.J.); (M.L.R.); (L.S.); (M.C.)
| | - Liora Shoshani
- Department of Physiology, Biophysics and Neurosciences, CINVESTAV-IPN, Mexico City 07360, Mexico; (L.J.); (M.L.R.); (L.S.); (M.C.)
| | - Marcelino Cereijido
- Department of Physiology, Biophysics and Neurosciences, CINVESTAV-IPN, Mexico City 07360, Mexico; (L.J.); (M.L.R.); (L.S.); (M.C.)
| |
Collapse
|
14
|
Awasthi D, Chopra S, Cho BA, Emmanuelli A, Sandoval TA, Hwang SM, Chae CS, Salvagno C, Tan C, Vasquez-Urbina L, Fernandez Rodriguez JJ, Santagostino SF, Iwawaki T, Romero-Sandoval EA, Crespo MS, Morales DK, Iliev ID, Hohl TM, Cubillos-Ruiz JR. Inflammatory ER stress responses dictate the immunopathogenic progression of systemic candidiasis. J Clin Invest 2023; 133:e167359. [PMID: 37432737 PMCID: PMC10471176 DOI: 10.1172/jci167359] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Accepted: 07/06/2023] [Indexed: 07/12/2023] Open
Abstract
Recognition of pathogen-associated molecular patterns can trigger the inositol-requiring enzyme 1 α (IRE1α) arm of the endoplasmic reticulum (ER) stress response in innate immune cells. This process maintains ER homeostasis and also coordinates diverse immunomodulatory programs during bacterial and viral infections. However, the role of innate IRE1α signaling in response to fungal pathogens remains elusive. Here, we report that systemic infection with the human opportunistic fungal pathogen Candida albicans induced proinflammatory IRE1α hyperactivation in myeloid cells that led to fatal kidney immunopathology. Mechanistically, simultaneous activation of the TLR/IL-1R adaptor protein MyD88 and the C-type lectin receptor dectin-1 by C. albicans induced NADPH oxidase-driven generation of ROS, which caused ER stress and IRE1α-dependent overexpression of key inflammatory mediators such as IL-1β, IL-6, chemokine (C-C motif) ligand 5 (CCL5), prostaglandin E2 (PGE2), and TNF-α. Selective ablation of IRE1α in leukocytes, or treatment with an IRE1α pharmacological inhibitor, mitigated kidney inflammation and prolonged the survival of mice with systemic C. albicans infection. Therefore, controlling IRE1α hyperactivation may be useful for impeding the immunopathogenic progression of disseminated candidiasis.
Collapse
Affiliation(s)
| | - Sahil Chopra
- Department of Obstetrics and Gynecology, and
- Weill Cornell Graduate School of Medical Sciences, Weill Cornell Medicine, New York, New York, USA
| | - Byuri A. Cho
- Precision Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Alexander Emmanuelli
- Department of Obstetrics and Gynecology, and
- Weill Cornell Graduate School of Medical Sciences, Weill Cornell Medicine, New York, New York, USA
| | | | | | | | | | - Chen Tan
- Department of Obstetrics and Gynecology, and
| | | | - Jose J. Fernandez Rodriguez
- Unit of Excellence, Institute of Biology and Molecular Genetics, CSIC–Universidad de Valladolid, Valladolid, Spain
| | - Sara F. Santagostino
- Laboratory of Comparative Pathology, Memorial Sloan Kettering Cancer Center, The Rockefeller University, and Weill Cornell Medicine, New York, New York, USA
| | - Takao Iwawaki
- Division of Cell Medicine, Medical Research Institute, Kanazawa Medical University, Ishikawa, Japan
| | - E. Alfonso Romero-Sandoval
- Department of Anesthesiology, Pain Mechanisms Laboratory, Wake Forest University School of Medicine, Winston-Salem, North Carolina, USA
| | - Mariano Sanchez Crespo
- Unit of Excellence, Institute of Biology and Molecular Genetics, CSIC–Universidad de Valladolid, Valladolid, Spain
| | | | - Iliyan D. Iliev
- Weill Cornell Graduate School of Medical Sciences, Weill Cornell Medicine, New York, New York, USA
- Department of Medicine and
- The Jill Roberts Institute for Research in Inflammatory Bowel Disease, Weill Cornell Medicine, New York, New York, USA
| | - Tobias M. Hohl
- Weill Cornell Graduate School of Medical Sciences, Weill Cornell Medicine, New York, New York, USA
- Infectious Disease Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York, USA
| | - Juan R. Cubillos-Ruiz
- Department of Obstetrics and Gynecology, and
- Weill Cornell Graduate School of Medical Sciences, Weill Cornell Medicine, New York, New York, USA
| |
Collapse
|
15
|
Chhabra Y, Seiffert P, Gormal RS, Vullings M, Lee CMM, Wallis TP, Dehkhoda F, Indrakumar S, Jacobsen NL, Lindorff-Larsen K, Durisic N, Waters MJ, Meunier FA, Kragelund BB, Brooks AJ. Tyrosine kinases compete for growth hormone receptor binding and regulate receptor mobility and degradation. Cell Rep 2023; 42:112490. [PMID: 37163374 DOI: 10.1016/j.celrep.2023.112490] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Revised: 03/07/2023] [Accepted: 04/24/2023] [Indexed: 05/12/2023] Open
Abstract
Growth hormone (GH) acts via JAK2 and LYN to regulate growth, metabolism, and neural function. However, the relationship between these tyrosine kinases remains enigmatic. Through an interdisciplinary approach combining cell biology, structural biology, computation, and single-particle tracking on live cells, we find overlapping LYN and JAK2 Box1-Box2-binding regions in GH receptor (GHR). Our data implicate direct competition between JAK2 and LYN for GHR binding and imply divergent signaling profiles. We show that GHR exhibits distinct mobility states within the cell membrane and that activation of LYN by GH mediates GHR immobilization, thereby initiating its nanoclustering in the membrane. Importantly, we observe that LYN mediates cytokine receptor degradation, thereby controlling receptor turnover and activity, and this applies to related cytokine receptors. Our study offers insight into the molecular interactions of LYN with GHR and highlights important functions for LYN in regulating GHR nanoclustering, signaling, and degradation, traits broadly relevant to many cytokine receptors.
Collapse
Affiliation(s)
- Yash Chhabra
- Frazer Institute, The University of Queensland, Woolloongabba, QLD 4102, Australia; The University of Queensland, Institute for Molecular Bioscience, St. Lucia, QLD 4072, Australia; Department of Biochemistry and Molecular Biology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD 21204, USA.
| | - Pernille Seiffert
- Structural Biology and NMR Laboratory (SBiNLab) and REPIN, Department of Biology, University of Copenhagen, 2200 Copenhagen, Denmark
| | - Rachel S Gormal
- The Clem Jones Centre for Ageing Dementia Research, Queensland Brain Institute, The University of Queensland, Brisbane, QLD 4072, Australia
| | - Manon Vullings
- The University of Queensland, Institute for Molecular Bioscience, St. Lucia, QLD 4072, Australia
| | | | - Tristan P Wallis
- The Clem Jones Centre for Ageing Dementia Research, Queensland Brain Institute, The University of Queensland, Brisbane, QLD 4072, Australia
| | - Farhad Dehkhoda
- Frazer Institute, The University of Queensland, Woolloongabba, QLD 4102, Australia
| | - Sowmya Indrakumar
- Structural Biology and NMR Laboratory (SBiNLab) and REPIN, Department of Biology, University of Copenhagen, 2200 Copenhagen, Denmark; Structural Biology and NMR Laboratory & Linderstrøm-Lang Centre for Protein Science, Department of Biology, University of Copenhagen, Copenhagen, Denmark
| | - Nina L Jacobsen
- Structural Biology and NMR Laboratory (SBiNLab) and REPIN, Department of Biology, University of Copenhagen, 2200 Copenhagen, Denmark
| | - Kresten Lindorff-Larsen
- Structural Biology and NMR Laboratory & Linderstrøm-Lang Centre for Protein Science, Department of Biology, University of Copenhagen, Copenhagen, Denmark
| | - Nela Durisic
- The Clem Jones Centre for Ageing Dementia Research, Queensland Brain Institute, The University of Queensland, Brisbane, QLD 4072, Australia
| | - Michael J Waters
- The University of Queensland, Institute for Molecular Bioscience, St. Lucia, QLD 4072, Australia
| | - Frédéric A Meunier
- The Clem Jones Centre for Ageing Dementia Research, Queensland Brain Institute, The University of Queensland, Brisbane, QLD 4072, Australia; School of Biomedical Sciences, The University of Queensland, Brisbane, QLD 4072, Australia.
| | - Birthe B Kragelund
- Structural Biology and NMR Laboratory (SBiNLab) and REPIN, Department of Biology, University of Copenhagen, 2200 Copenhagen, Denmark.
| | - Andrew J Brooks
- Frazer Institute, The University of Queensland, Woolloongabba, QLD 4102, Australia; The University of Queensland, Institute for Molecular Bioscience, St. Lucia, QLD 4072, Australia.
| |
Collapse
|
16
|
Fu T, Zuo Y, Xue G, Zhou D, Pan Z. Discovery of 2,5-diaminopyrimidine derivatives as the first series of selective monomeric degraders of B-lymphoid tyrosine kinase. Eur J Med Chem 2023; 256:115460. [PMID: 37163946 DOI: 10.1016/j.ejmech.2023.115460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 05/03/2023] [Accepted: 05/04/2023] [Indexed: 05/12/2023]
Abstract
B-lymphoid tyrosine kinase (BLK) is an important knot of B cell receptor signaling, and regulates the function and development of B cells subset. Dysfunction of BLK is correlated with autoimmune diseases and cancer. There is an urgent need to develop selective BLK modulators to facilitate the studies of BLK in biological processes. Herein, we report the discovery of a series of 2,5-diaminopyrimidine-based compounds capable of selectively degrading BLK. The optimized compounds 9-11 possess weak biochemical inhibitory activities against BLK, yet they effectively degrade BLK and show high selectivity for BLK over other structurally and functionally related SRC family and TEC family kinases. Furthermore, compounds 9 and 11 demonstrate potent inhibitory activities in several B-lymphoid cell lines. As the first series of effective and selective monomeric BLK degraders, compounds 9-11 serve as valuable tools for further investigation of the functions of BLK.
Collapse
Affiliation(s)
- Tiancheng Fu
- State Key Laboratory of Chemical Oncogenomics, Key Laboratory of Chemical Genomics, School of Chemical Biology and Biotechnology, Shenzhen Graduate School, Peking University, Shenzhen, 518055, China
| | - Yingying Zuo
- State Key Laboratory of Chemical Oncogenomics, Key Laboratory of Chemical Genomics, School of Chemical Biology and Biotechnology, Shenzhen Graduate School, Peking University, Shenzhen, 518055, China
| | - Gang Xue
- State Key Laboratory of Chemical Oncogenomics, Key Laboratory of Chemical Genomics, School of Chemical Biology and Biotechnology, Shenzhen Graduate School, Peking University, Shenzhen, 518055, China
| | - Danli Zhou
- State Key Laboratory of Chemical Oncogenomics, Key Laboratory of Chemical Genomics, School of Chemical Biology and Biotechnology, Shenzhen Graduate School, Peking University, Shenzhen, 518055, China
| | - Zhengying Pan
- State Key Laboratory of Chemical Oncogenomics, Key Laboratory of Chemical Genomics, School of Chemical Biology and Biotechnology, Shenzhen Graduate School, Peking University, Shenzhen, 518055, China.
| |
Collapse
|
17
|
Kimata Y, Yamada M, Murata T, Kuwata K, Sato A, Suzuki T, Kurihara D, Hasebe M, Higashiyama T, Ueda M. Novel inhibitors of microtubule organization and phragmoplast formation in diverse plant species. Life Sci Alliance 2023; 6:e202201657. [PMID: 36849250 PMCID: PMC9971157 DOI: 10.26508/lsa.202201657] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Revised: 02/14/2023] [Accepted: 02/14/2023] [Indexed: 03/01/2023] Open
Abstract
Cell division is essential for development and involves spindle assembly, chromosome separation, and cytokinesis. In plants, the genetic tools for controlling the events in cell division at the desired time are limited and ineffective owing to high redundancy and lethality. Therefore, we screened cell division-affecting compounds in Arabidopsis thaliana zygotes, whose cell division is traceable without time-lapse observations. We then determined the target events of the identified compounds using live-cell imaging of tobacco BY-2 cells. Subsequently, we isolated two compounds, PD-180970 and PP2, neither of which caused lethal damage. PD-180970 disrupted microtubule (MT) organization and, thus, nuclear separation, and PP2 blocked phragmoplast formation and impaired cytokinesis. Phosphoproteomic analysis showed that these compounds reduced the phosphorylation of diverse proteins, including MT-associated proteins (MAP70) and class II Kinesin-12. Moreover, these compounds were effective in multiple plant species, such as cucumber (Cucumis sativus) and moss (Physcomitrium patens). These properties make PD-180970 and PP2 useful tools for transiently controlling plant cell division at key manipulation nodes conserved across diverse plant species.
Collapse
Affiliation(s)
- Yusuke Kimata
- Graduate School of Life Sciences, Tohoku University, Sendai, Japan
| | - Moé Yamada
- Department of Biological Science, Division of Natural Science, Graduate School of Science, Nagoya University, Nagoya, Japan
| | - Takashi Murata
- Department of Applied Bioscience, Kanagawa Institute of Technology, Atsugi, Japan
| | - Keiko Kuwata
- Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Nagoya, Japan
| | - Ayato Sato
- Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Nagoya, Japan
| | - Takamasa Suzuki
- College of Bioscience and Biotechnology, Chubu University, Kasugai, Japan
| | - Daisuke Kurihara
- Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Nagoya, Japan
- Institute for Advanced Research (IAR), Nagoya University, Nagoya, Japan
| | - Mitsuyasu Hasebe
- National Institute for Basic Biology, Okazaki, Japan
- School of Life Science, The Graduate University for Advanced Studies, Okazaki, Japan
| | - Tetsuya Higashiyama
- Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Nagoya, Japan
- Department of Biological Sciences, Graduate School of Science, The University of Tokyo, Tokyo, Japan
| | - Minako Ueda
- Graduate School of Life Sciences, Tohoku University, Sendai, Japan
- Suntory Rising Stars Encouragement Program in Life Sciences (SunRiSE), Kyoto, Japan
| |
Collapse
|
18
|
Verma M, Trivedi L, Vasudev PG. Interaction Patterns of Pyrazolopyrimidines with Receptor Proteins. J Chem Inf Model 2023; 63:2331-2344. [PMID: 37023262 DOI: 10.1021/acs.jcim.2c01315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/08/2023]
Abstract
Heterocyclic compounds have a prominent role in medicinal chemistry and drug design. They are not only useful as medicinally active compounds but also as a modular structural scaffold for drug design. Therefore, heterocycles are present in many ligands that exhibit a broad spectrum of biological activities. Pyazolopyrimidines are nitrogen heterocycles and are part of many biologically active compounds and marketed drugs. This study examines the non-covalent interactions between the pyrazolopyrimidine rings and receptor proteins through data mining and analysis of high-resolution crystal structures deposited in the Protein Data Bank. The Protein Data Bank contains 471 crystal structures with pyrazolopyrimidine derivatives as ligands, among which 50% contains 1H-pyrazolo[3,4-d]pyrimidines (Pyp1), while 38% contains pyrazolo[1,5-a] pyrimidines (Pyp2). 1H-Pyrazolo[4,3-d]pyrimidines (Pyp3) are found in 11% of the structures, and no structural data is available for pyrazolo[1,5-c]pyrimidine isomers (Pyp4). Among receptor proteins, transferases are found in most examples (67.5%), followed by hydrolases (13.4%) and oxidoreductases (8.9%). Detailed analysis of structures to identify the most prevalent interactions of pyrazolopyrimidines with proteins shows that aromatic π···π interactions are present in ∼91% of the structures and hydrogen bonds/other polar contacts are present in ∼73% of the structures. The centroid-centroid distances (dcent) between the pyrazolopyrimidine rings and aromatic side chains of the proteins have been retrieved from crystal structures recorded at a high resolution (data resolution <2.0 Å). The average value of dcent in pyrazolopyrimidine-protein complexes is 5.32 Å. The information on the geometric parameters of aromatic interactions between the core pyrazolopyrimidine ring and the protein would be helpful in future in silico modeling studies on pyrazolopyrimidine-receptor complexes.
Collapse
Affiliation(s)
- Meenakshi Verma
- Plant Biotechnology Division, CSIR-Central Institute of Medicinal and Aromatic Plants, Lucknow 226015, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh 220025, India
| | - Laxmikant Trivedi
- Plant Biotechnology Division, CSIR-Central Institute of Medicinal and Aromatic Plants, Lucknow 226015, India
| | - Prema G Vasudev
- Plant Biotechnology Division, CSIR-Central Institute of Medicinal and Aromatic Plants, Lucknow 226015, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh 220025, India
| |
Collapse
|
19
|
IgSF11-mediated phosphorylation of pyruvate kinase M2 regulates osteoclast differentiation and prevents pathological bone loss. Bone Res 2023; 11:17. [PMID: 36928396 PMCID: PMC10020456 DOI: 10.1038/s41413-023-00251-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 01/04/2023] [Accepted: 02/12/2023] [Indexed: 03/18/2023] Open
Abstract
Osteoclasts are primary bone-resorbing cells, and receptor-activated NF-kB ligand (RANKL) stimulation is the key driver of osteoclast differentiation. During late-stage differentiation, osteoclasts become multinucleated and enlarged (so-called "maturation"), suggesting their need to adapt to changing metabolic demands and a substantial increase in size. Here, we demonstrate that immunoglobulin superfamily 11 (IgSF11), which is required for osteoclast differentiation through an association with the postsynaptic scaffolding protein PSD-95, regulates osteoclast differentiation by controlling the activity of pyruvate kinase M isoform 2 (PKM2). By using a system that directly induces the activation of IgSF11 in a controlled manner, we identified PKM2 as a major IgSF11-induced tyrosine-phosphorylated protein. IgSF11 activates multiple Src family tyrosine kinases (SFKs), including c-Src, Fyn, and HcK, which phosphorylate PKM2 and thereby inhibit PKM2 activity. Consistently, IgSF11-deficient cells show higher PKM2 activity and defective osteoclast differentiation. Furthermore, inhibiting PKM2 activities with the specific inhibitor Shikonin rescues the impaired osteoclast differentiation in IgSF11-deficient cells, and activating PKM2 with the specific activator TEPP46 suppresses osteoclast differentiation in wild-type cells. Moreover, PKM2 activation further suppresses osteoclastic bone loss without affecting bone formation in vivo. Taken together, these results show that IgSF11 controls osteoclast differentiation through PKM2 activity, which is a metabolic switch necessary for optimal osteoclast maturation.
Collapse
|
20
|
Liu L, Xu TC, Zhao ZA, Zhang NN, Li J, Chen HS. Toll-Like Receptor 4 Signaling in Neurons Mediates Cerebral Ischemia/Reperfusion Injury. Mol Neurobiol 2023; 60:864-874. [PMID: 36385232 DOI: 10.1007/s12035-022-03122-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Accepted: 11/04/2022] [Indexed: 11/17/2022]
Abstract
In microglia, Toll-like receptor 4 (TLR4) is well known to contribute to neuroinflammatory responses following brain ischemia. TLR4 is also expressed in neurons and can mediate the conduction of calcium (Ca2+) influx, but the mechanistic link between neuronal TLR4 signaling and brain ischemic injury is still poorly understood. Here, primary neuronal cell cultures from TLR4 knockout mice and mice with conditional TLR4 knockout in glutamatergic neurons (TLR4cKO) were used to establish ischemic models in vitro and in vivo, respectively. We found that deleting TLR4 would reduce the neuronal death and intracellular Ca2+ increasement induced by oxygen and glucose deprivation (OGD) or lipopolysaccharide treatment. Infarct volume and functional deficits were also alleviated in TLR4cKO mice following cerebral ischemia/reperfusion (I/R). Furthermore, TLR4 and N-methyl-D-aspartate receptor subunit 2B (NMDAR2B) were colocalized in neurons. Deletion of TLR4 in neurons rescued the upregulation of phosphorylated NMDAR2B induced by ischemia via Src kinase in vitro and in vivo. Downstream of NMDAR2B signaling, the interaction of neuronal nitric oxide synthase (nNOS) with postsynaptic density protein-95 (PSD-95) was also disrupted in TLR4cKO mice following cerebral I/R. Taken together, our results demonstrate a novel molecular neuronal pathway in which TLR4 signaling in neurons plays a crucial role in neuronal death and provide a new target for neuroprotection after ischemic stroke.
Collapse
Affiliation(s)
- Liang Liu
- Department of Neurology, The General Hospital of Northern Theater Command, No. 83 Wenhua Street, Shenhe District, ShenyangLiaoning, 110016, China
| | - Tian-Ce Xu
- Department of Neurology, The General Hospital of Northern Theater Command, No. 83 Wenhua Street, Shenhe District, ShenyangLiaoning, 110016, China
| | - Zi-Ai Zhao
- Department of Neurology, The General Hospital of Northern Theater Command, No. 83 Wenhua Street, Shenhe District, ShenyangLiaoning, 110016, China
| | - Nan-Nan Zhang
- Department of Neurology, The General Hospital of Northern Theater Command, No. 83 Wenhua Street, Shenhe District, ShenyangLiaoning, 110016, China
| | - Jing Li
- Department of Neurology, The General Hospital of Northern Theater Command, No. 83 Wenhua Street, Shenhe District, ShenyangLiaoning, 110016, China
| | - Hui-Sheng Chen
- Department of Neurology, The General Hospital of Northern Theater Command, No. 83 Wenhua Street, Shenhe District, ShenyangLiaoning, 110016, China.
| |
Collapse
|
21
|
Vu AT, Akingunsade L, Hoffer K, Petersen C, Betz CS, Rothkamm K, Rieckmann T, Bussmann L, Kriegs M. Src family kinase targeting in head and neck tumor cells using SU6656, PP2 and dasatinib. Head Neck 2023; 45:147-155. [PMID: 36285353 DOI: 10.1002/hed.27216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Revised: 08/31/2022] [Accepted: 09/30/2022] [Indexed: 02/01/2023] Open
Abstract
BACKGROUND We have recently shown a frequent upregulation of Src-family kinases (SFK) in head and neck squamous cell carcinoma (HNSCC). Here we tested, if SFK targeting is effective especially in HNSCC cells with upregulated SFK signaling. METHODS The impact of SFK inhibitors SU6656, PP2 and dasatinib on three HNSCC cell lines with different SFK activity levels was analyzed using proliferation and colony formation assays, Western blot and functional kinomics. RESULTS Proliferation was blocked by all inhibitors in a micro-molar range. With respect to cell kill, dasatinib was most effective, while SU6656 showed moderate and PP2 minor effects. Cellular signaling was affected differently, with PP2 having no effect on SFK signaling while dasatinib probably has non-SFK specific effects. Only SU6656 showed clear SFK specific effects on signaling. CONCLUSION The results demonstrate potential benefit of SFK inhibition in HNSCC but they also highlight challenges due to non-specificities of the different drugs.
Collapse
Affiliation(s)
- Anh Thu Vu
- Department of Radiobiology & Radiation Oncology, Hubertus Wald Tumorzentrum - University Cancer Center Hamburg (UCCH), University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Lara Akingunsade
- Department of Radiobiology & Radiation Oncology, Hubertus Wald Tumorzentrum - University Cancer Center Hamburg (UCCH), University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Konstantin Hoffer
- Department of Radiobiology & Radiation Oncology, Hubertus Wald Tumorzentrum - University Cancer Center Hamburg (UCCH), University Medical Center Hamburg-Eppendorf, Hamburg, Germany.,UCCH Kinomics Core Facility, Hubertus Wald Tumorzentrum - University Cancer Center Hamburg (UCCH), University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Cordula Petersen
- Department of Radiobiology & Radiation Oncology, Hubertus Wald Tumorzentrum - University Cancer Center Hamburg (UCCH), University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Christian Stephan Betz
- Department of Otorhinolaryngology, Hubertus Wald Tumorzentrum - University Cancer Center Hamburg (UCCH), University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Kai Rothkamm
- Department of Radiobiology & Radiation Oncology, Hubertus Wald Tumorzentrum - University Cancer Center Hamburg (UCCH), University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Thorsten Rieckmann
- Department of Radiobiology & Radiation Oncology, Hubertus Wald Tumorzentrum - University Cancer Center Hamburg (UCCH), University Medical Center Hamburg-Eppendorf, Hamburg, Germany.,Department of Otorhinolaryngology, Hubertus Wald Tumorzentrum - University Cancer Center Hamburg (UCCH), University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Lara Bussmann
- UCCH Kinomics Core Facility, Hubertus Wald Tumorzentrum - University Cancer Center Hamburg (UCCH), University Medical Center Hamburg-Eppendorf, Hamburg, Germany.,Department of Otorhinolaryngology, Hubertus Wald Tumorzentrum - University Cancer Center Hamburg (UCCH), University Medical Center Hamburg-Eppendorf, Hamburg, Germany.,Mildred Scheel Cancer Career Center HaTriCS4, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Malte Kriegs
- Department of Radiobiology & Radiation Oncology, Hubertus Wald Tumorzentrum - University Cancer Center Hamburg (UCCH), University Medical Center Hamburg-Eppendorf, Hamburg, Germany.,UCCH Kinomics Core Facility, Hubertus Wald Tumorzentrum - University Cancer Center Hamburg (UCCH), University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| |
Collapse
|
22
|
Singha M, Pu L, Stanfield BA, Uche IK, Rider PJF, Kousoulas KG, Ramanujam J, Brylinski M. Artificial intelligence to guide precision anticancer therapy with multitargeted kinase inhibitors. BMC Cancer 2022; 22:1211. [PMID: 36434556 PMCID: PMC9694576 DOI: 10.1186/s12885-022-10293-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2022] [Accepted: 11/07/2022] [Indexed: 11/26/2022] Open
Abstract
BACKGROUND Vast amounts of rapidly accumulating biological data related to cancer and a remarkable progress in the field of artificial intelligence (AI) have paved the way for precision oncology. Our recent contribution to this area of research is CancerOmicsNet, an AI-based system to predict the therapeutic effects of multitargeted kinase inhibitors across various cancers. This approach was previously demonstrated to outperform other deep learning methods, graph kernel models, molecular docking, and drug binding pocket matching. METHODS CancerOmicsNet integrates multiple heterogeneous data by utilizing a deep graph learning model with sophisticated attention propagation mechanisms to extract highly predictive features from cancer-specific networks. The AI-based system was devised to provide more accurate and robust predictions than data-driven therapeutic discovery using gene signature reversion. RESULTS Selected CancerOmicsNet predictions obtained for "unseen" data are positively validated against the biomedical literature and by live-cell time course inhibition assays performed against breast, pancreatic, and prostate cancer cell lines. Encouragingly, six molecules exhibited dose-dependent antiproliferative activities, with pan-CDK inhibitor JNJ-7706621 and Src inhibitor PP1 being the most potent against the pancreatic cancer cell line Panc 04.03. CONCLUSIONS CancerOmicsNet is a promising AI-based platform to help guide the development of new approaches in precision oncology involving a variety of tumor types and therapeutics.
Collapse
Affiliation(s)
- Manali Singha
- grid.64337.350000 0001 0662 7451Department of Biological Sciences, Louisiana State University, Baton Rouge, LA 70803 USA
| | - Limeng Pu
- grid.64337.350000 0001 0662 7451Center for Computation and Technology, Louisiana State University, Baton Rouge, LA 70803 USA
| | - Brent A. Stanfield
- grid.64337.350000 0001 0662 7451Department of Pathobiological Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, LA 70803 USA
| | - Ifeanyi K. Uche
- grid.64337.350000 0001 0662 7451Department of Pathobiological Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, LA 70803 USA ,grid.64337.350000 0001 0662 7451Division of Biotechnology and Molecular Medicine, Department of Pathobiological Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, LA 70803 USA ,grid.279863.10000 0000 8954 1233School of Medicine, Louisiana State University Health Sciences Center, New Orleans, LA 70112 USA
| | - Paul J. F. Rider
- grid.64337.350000 0001 0662 7451Department of Pathobiological Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, LA 70803 USA ,grid.64337.350000 0001 0662 7451Division of Biotechnology and Molecular Medicine, Department of Pathobiological Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, LA 70803 USA
| | - Konstantin G. Kousoulas
- grid.64337.350000 0001 0662 7451Department of Pathobiological Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, LA 70803 USA ,grid.64337.350000 0001 0662 7451Division of Biotechnology and Molecular Medicine, Department of Pathobiological Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, LA 70803 USA
| | - J. Ramanujam
- grid.64337.350000 0001 0662 7451Center for Computation and Technology, Louisiana State University, Baton Rouge, LA 70803 USA ,grid.64337.350000 0001 0662 7451Division of Electrical and Computer Engineering, Louisiana State University, Baton Rouge, LA 70803 USA
| | - Michal Brylinski
- grid.64337.350000 0001 0662 7451Department of Biological Sciences, Louisiana State University, Baton Rouge, LA 70803 USA ,grid.64337.350000 0001 0662 7451Center for Computation and Technology, Louisiana State University, Baton Rouge, LA 70803 USA
| |
Collapse
|
23
|
Cereijido M, Jimenez L, Hinojosa L, Castillo A, Martínez-Rendon J, Ponce A. Ouabain-Induced Changes in the Expression of Voltage-Gated Potassium Channels in Epithelial Cells Depend on Cell-Cell Contacts. Int J Mol Sci 2022; 23:13257. [PMID: 36362049 PMCID: PMC9655981 DOI: 10.3390/ijms232113257] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 10/21/2022] [Accepted: 10/23/2022] [Indexed: 12/25/2023] Open
Abstract
Ouabain is a cardiac glycoside, initially isolated from plants, and currently thought to be a hormone since some mammals synthesize it endogenously. It has been shown that in epithelial cells, it induces changes in properties and components related to apical-basolateral polarity and cell-cell contacts. In this work, we used a whole-cell patch clamp to test whether ouabain affects the properties of the voltage-gated potassium currents (Ik) of epithelial cells (MDCK). We found that: (1) in cells arranged as mature monolayers, ouabain induced changes in the properties of Ik; (2) it also accelerated the recovery of Ik in cells previously trypsinized and re-seeded at confluence; (3) in cell-cell contact-lacking cells, ouabain did not produce a significant change; (4) Na+/K+ ATPase might be the receptor that mediates the effect of ouabain on Ik; (5) the ouabain-induced changes in Ik required the synthesis of new nucleotides and proteins, as well as Golgi processing and exocytosis, as evidenced by treatment with drugs inhibiting those processes; and (5) the signaling cascade included the participation of cSrC, PI3K, Erk1/2, NF-κB and β-catenin. These results reveal a new role for ouabain as a modulator of the expression of voltage-gated potassium channels, which require cells to be in contact with themselves.
Collapse
Affiliation(s)
- Marcelino Cereijido
- Department of Physiology, Biophysics and Neurosciences, CINVESTAV-IPN, CDMX 07360, Mexico
| | - Lidia Jimenez
- Department of Physiology, Biophysics and Neurosciences, CINVESTAV-IPN, CDMX 07360, Mexico
| | - Lorena Hinojosa
- Department of Physiology, Biophysics and Neurosciences, CINVESTAV-IPN, CDMX 07360, Mexico
| | - Aida Castillo
- Department of Physiology, Biophysics and Neurosciences, CINVESTAV-IPN, CDMX 07360, Mexico
| | - Jacqueline Martínez-Rendon
- Department of Physiology, Biophysics and Neurosciences, CINVESTAV-IPN, CDMX 07360, Mexico
- Molecular Medicine Laboratory, Unidad Academica de Medicina Humana y C.S, Campus UAZ Siglo XXI-L1, Universidad Autónoma de Zacatecas, Zacatecas 98160, Mexico
| | - Arturo Ponce
- Department of Physiology, Biophysics and Neurosciences, CINVESTAV-IPN, CDMX 07360, Mexico
| |
Collapse
|
24
|
Cappabianca L, Sebastiano M, Ruggieri M, Sbaffone M, Zelli V, Farina AR, Mackay AR. Doxorubicin-Induced TrkAIII Activation: A Selection Mechanism for Resistant Dormant Neuroblastoma Cells. Int J Mol Sci 2022; 23:ijms231810895. [PMID: 36142807 PMCID: PMC9503591 DOI: 10.3390/ijms231810895] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Revised: 09/06/2022] [Accepted: 09/13/2022] [Indexed: 11/16/2022] Open
Abstract
Patients with advanced neuroblastoma (NB) receive multimodal clinical therapy, including the potent anthracycline chemotherapy drug doxorubicin (Dox). The acquisition of Dox resistance, however, is a major barrier to a sustained response and leads to a poor prognosis in advanced disease states, reinforcing the need to identify and inhibit Dox resistance mechanisms. In this context, we report on the identification and inhibition of a novel Dox resistance mechanism. This mechanism is characterized by the Dox-induced activation of the oncogenic TrkAIII alternative splice variant, resulting in increased Dox resistance, and is blocked by lestaurtinib, entrectinib, and crizotinib tyrosine kinase and LY294002 IP3-K inhibitors. Using time lapse live cell imaging, conventional and co-immunoprecipitation Western blots, RT-PCR, and inhibitor studies, we report that the Dox-induced TrkAIII activation correlates with proliferation inhibition and is CDK1- and Ca2+-uniporter-independent. It is mediated by ryanodine receptors; involves Ca2+-dependent interactions between TrkAIII, calmodulin and Hsp90; requires oxygen and oxidation; occurs within assembled ERGICs; and does not occur with fully spliced TrkA. The inhibitory effects of lestaurtinib, entrectinib, crizotinib, and LY294002 on the Dox-induced TrkAIII and Akt phosphorylation and resistance confirm roles for TrkAIII and IP3-K consistent with Dox-induced, TrkAIII-mediated pro-survival IP3K/Akt signaling. This mechanism has the potential to select resistant dormant TrkAIII-expressing NB cells, supporting the use of Trk inhibitors during Dox therapy in TrkAIII-expressing NBs.
Collapse
|
25
|
Fyn Signaling in Ischemia-Reperfusion Injury: Potential and Therapeutic Implications. Mediators Inflamm 2022; 2022:9112127. [PMID: 36157893 PMCID: PMC9499810 DOI: 10.1155/2022/9112127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Revised: 08/20/2022] [Accepted: 08/27/2022] [Indexed: 11/18/2022] Open
Abstract
Ischemic stroke caused by arterial occlusion is the most common type of stroke and is one of the leading causes of disability and death, with the incidence increasing each year. Fyn is a nonreceptor tyrosine kinase belonging to the Src family of kinases (SFKs), which is related to many normal and pathological processes of the nervous system, including neurodevelopment and disease progression. In recent years, more and more evidence suggests that Fyn may be closely related to cerebral ischemia-reperfusion, including energy metabolism disorders, excitatory neurotoxicity, intracellular calcium homeostasis, free radical production, and the activation of apoptotic genes. This paper reviews the role of Fyn in the pathological process of cerebral ischemia-reperfusion, including neuroexcitotoxicity and neuroinflammation, to explore how Fyn affects specific signal cascades and leads to cerebral ischemia-reperfusion injury. In addition, Fyn also promotes the production of superoxide and endogenous NO, so as to quickly react to produce peroxynitrite, which may also mediate cerebral ischemia-reperfusion injury, which is discussed in this paper. Finally, we revealed the treatment methods related to Fyn inhibitors and discussed its potential as a clinical treatment for ischemic stroke.
Collapse
|
26
|
Gauthaman A, Jacob R, Pasupati S, Rajadurai A, Doss CGP, Moorthy A. Novel peptide-based inhibitor for targeted inhibition of T cell function. J Cell Commun Signal 2022; 16:349-359. [PMID: 34854056 PMCID: PMC9411311 DOI: 10.1007/s12079-021-00660-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Accepted: 11/17/2021] [Indexed: 01/10/2023] Open
Abstract
Novel immunosuppressants are sought to overcome the side effects of currently used drugs. T cells play a central role in the functioning of the immune system; hence, drugs that specifically inhibit T cell function are expected to be better immunosuppressants with fewer side effects than the ones currently used. Peptides that interfere with crucial protein-protein interactions (PPIs) have been shown to influence cell physiology and have therapeutic potential. In this study, we designed a peptide, GVITAA, which specifically inhibits the function of lymphocyte-specific protein kinase (LCK), a signaling molecule that is mainly expressed in T cells and is responsible for positively regulating T cell function. Aspartate Histidine -Histidine Cysteine (DHHC21) -LCK is an important PPI present in T cells; DHHC21 interacts with LCK and targets the kinase to membrane rafts by adding a palmitoyl group. GVITAA is a ten amino acid peptide that interferes with the DHHC21-LCK interaction, prevents the membrane localization of LCK, and inhibits LCK-mediated initiation of complex signal transduction pathways required for T cell activation. In this study, we present evidence that the GVITAA peptide when conjugated with a cell-penetrating peptide-human immunodeficiency virus transactivator of transcription (TAT) and incubated with mouse T cells specifically inhibits LCK-mediated T cell receptor signaling, cytokine secretion, and T cell proliferation. This peptide does not affect other non-T cell functions and is non-toxic. A similar strategy was also tested and demonstrated in human peripheral T cells.
Collapse
Affiliation(s)
- Ashna Gauthaman
- Department of Integrative Biology, School of Biosciences and Technology, Vellore Institute of Technology, Vellore, 632014, India
| | - Rini Jacob
- Department of Integrative Biology, School of Biosciences and Technology, Vellore Institute of Technology, Vellore, 632014, India
| | - Sneha Pasupati
- Department of Integrative Biology, School of Biosciences and Technology, Vellore Institute of Technology, Vellore, 632014, India
| | - Abarna Rajadurai
- Department of Integrative Biology, School of Biosciences and Technology, Vellore Institute of Technology, Vellore, 632014, India
| | - C George Priya Doss
- Department of Integrative Biology, School of Biosciences and Technology, Vellore Institute of Technology, Vellore, 632014, India
| | - Anbalagan Moorthy
- Department of Integrative Biology, School of Biosciences and Technology, Vellore Institute of Technology, Vellore, 632014, India.
| |
Collapse
|
27
|
Bekkar A, Isorce N, Snäkä T, Claudinot S, Desponds C, Kopelyanskiy D, Prével F, Reverte M, Xenarios I, Fasel N, Teixeira F. Dissection of the macrophage response towards infection by the Leishmania-viral endosymbiont duo and dynamics of the type I interferon response. Front Cell Infect Microbiol 2022; 12:941888. [PMID: 35992159 PMCID: PMC9386148 DOI: 10.3389/fcimb.2022.941888] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Accepted: 07/01/2022] [Indexed: 11/25/2022] Open
Abstract
Leishmania RNA virus 1 (LRV1) is a double-stranded RNA virus found in some strains of the human protozoan parasite Leishmania, the causative agent of leishmaniasis, a neglected tropical disease. Interestingly, the presence of LRV1 inside Leishmania constitutes an important virulence factor that worsens the leishmaniasis outcome in a type I interferon (IFN)–dependent manner and contributes to treatment failure. Understanding how macrophages respond toward Leishmania alone or in combination with LRV1 as well as the role that type I IFNs may play during infection is fundamental to oversee new therapeutic strategies. To dissect the macrophage response toward infection, RNA sequencing was performed on murine wild-type and Ifnar-deficient bone marrow–derived macrophages infected with Leishmania guyanensis (Lgy) devoid or not of LRV1. Additionally, macrophages were treated with poly I:C (mimetic virus) or with type I IFNs. By implementing a weighted gene correlation network analysis, the groups of genes (modules) with similar expression patterns, for example, functionally related, coregulated, or the members of the same functional pathway, were identified. These modules followed patterns dependent on Leishmania, LRV1, or Leishmania exacerbated by the presence of LRV1. Not only the visualization of how individual genes were embedded to form modules but also how different modules were related to each other were observed. Thus, in the context of the observed hyperinflammatory phenotype associated to the presence of LRV1, it was noted that the biomarkers tumor-necrosis factor α (TNF-α) and the interleukin 6 (IL-6) belonged to different modules and that their regulating specific Src-family kinases were segregated oppositely. In addition, this network approach revealed the strong and sustained effect of LRV1 on the macrophage response and genes that had an early, late, or sustained impact during infection, uncovering the dynamics of the IFN response. Overall, this study contributed to shed light and dissect the intricate macrophage response toward infection by the Leishmania-LRV1 duo and revealed the crosstalk between modules made of coregulated genes and provided a new resource that can be further explored to study the impact of Leishmania on the macrophage response.
Collapse
Affiliation(s)
- Amel Bekkar
- Department of Immunobiology, University of Lausanne, Epalinges, Switzerland
| | - Nathalie Isorce
- Department of Immunobiology, University of Lausanne, Epalinges, Switzerland
| | - Tiia Snäkä
- Department of Immunobiology, University of Lausanne, Epalinges, Switzerland
| | | | - Chantal Desponds
- Department of Immunobiology, University of Lausanne, Epalinges, Switzerland
| | | | - Florence Prével
- Department of Immunobiology, University of Lausanne, Epalinges, Switzerland
| | - Marta Reverte
- Department of Immunobiology, University of Lausanne, Epalinges, Switzerland
| | - Ioannis Xenarios
- Agora Center, Center Hospitalier Universitaire (CHUV), Lausanne, Switzerland
- Center for Integrative Genomics, University of Lausanne, Lausanne, Switzerland
| | - Nicolas Fasel
- Department of Immunobiology, University of Lausanne, Epalinges, Switzerland
- *Correspondence: Nicolas Fasel, ; Filipa Teixeira,
| | - Filipa Teixeira
- Department of Immunobiology, University of Lausanne, Epalinges, Switzerland
- *Correspondence: Nicolas Fasel, ; Filipa Teixeira,
| |
Collapse
|
28
|
Gao Z, Min X, Kim KM, Liu H, Hu L, Wu C, Zhang X. The tyrosine phosphorylation of GRK2 is responsible for activated D2R-mediated insulin resistance. Biochem Biophys Res Commun 2022; 628:40-48. [DOI: 10.1016/j.bbrc.2022.08.056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Revised: 08/16/2022] [Accepted: 08/19/2022] [Indexed: 11/02/2022]
|
29
|
Fyn-kinase and caveolin-1 in the alveolar epithelial junctional adherence complex contribute to the early stages of pulmonary fibrosis. Eur J Pharm Sci 2022; 175:106236. [PMID: 35710078 DOI: 10.1016/j.ejps.2022.106236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Revised: 06/03/2022] [Accepted: 06/11/2022] [Indexed: 11/23/2022]
Abstract
Current pathophysiological findings indicate that damage to the alveolar epithelium plays a decisive role in the development of idiopathic pulmonary fibrosis (IPF). The available pharmacological interventions (i.e., oral pirfenidone and nintedanib) only slow down progression of the disease, but do not offer a cure. In order to develop new drug candidates, the pathophysiology of IPF needs to be better understood on a molecular level. It has previously been reported that a loss of caveolin-1 (Cav-1) contributes to profibrotic processes by causing reduced alveolar barrier function and fibrosis-like alterations of the lung-parenchyma. Conversely, overexpression of caveolin-1 appears to counteract the development of fibrosis by inhibiting the inflammasome NLRP3 and the associated expression of interleukin-1β. In this study, the interaction between Fyn-kinase and caveolin-1 in the alveolar epithelium of various bleomycin (BLM)/TGF-β damage models using precision-cut lung slices (PCLS), wildtype (WT) and caveolin-1 knockout (KO) mice as well as the human NCI-H441 cell line, were investigated. In WT mouse lung tissues, strong signals for Fyn-kinase were detected in alveolar epithelial type I cells, whereas in caveolin-1 KO animals, expression shifted to alveolar epithelial type II cells. Caveolin-1 and Fyn-kinase were found to be co-localized in isolated lipid rafts of NCI-H441 cell membrane fractions. These findings were corroborated by co-immunoprecipitation studies in which a co-localization of Cav-1 and Fyn-kinase was detected in the cell membrane of the alveolar epithelium. After TGF-β and BLM-induced damage to the alveolar epithelium both in PCLS and cell culture experiments, a decrease in caveolin-1 and Fyn-kinase was found. Furthermore, TEER (transepithelial electrical resistance) measurements indicated that TGF-β and BLM have a damaging effect on cell-cell contacts and thus impair the barrier function in NCI-H441 cell monolayers. This effect was attenuated after co-incubation with the Fyn-kinase inhibitor, PP-2. Our data suggest an involvement of Fyn-kinase and caveolin-1 in TGF-β/bleomycin-induced impairment of alveolar barrier function and thus a possible role in the early stages of pulmonary fibrosis. Fyn-kinase and/or its complex with caveolin-1 might, therefore, be novel therapeutic targets in IPF.
Collapse
|
30
|
Udoh UAS, Banerjee M, Rajan PK, Sanabria JD, Smith G, Schade M, Sanabria JA, Nakafuku Y, Sodhi K, Pierre SV, Shapiro JI, Sanabria JR. Tumor-Suppressor Role of the α1-Na/K-ATPase Signalosome in NASH Related Hepatocellular Carcinoma †. Int J Mol Sci 2022; 23:ijms23137359. [PMID: 35806364 PMCID: PMC9266688 DOI: 10.3390/ijms23137359] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Revised: 06/24/2022] [Accepted: 06/29/2022] [Indexed: 02/07/2023] Open
Abstract
Hepatocellular carcinoma (HCC) is the second leading cause of cancer-related mortality worldwide, with an estimate of 0.84 million cases every year. In Western countries, because of the obesity epidemic, non-alcoholic steatohepatitis (NASH) has become the major cause of HCC. Intriguingly, the molecular mechanisms underlying tumorigenesis of HCC from NASH are largely unknown. We hypothesized that the growing uncoupled metabolism during NASH progression to HCC, manifested by lower cell redox status and an apoptotic ‘switch’ activity, follows a dysregulation of α1-Na/K-ATPase (NKA)/Src signalosome. Our results suggested that in NASH-related malignancy, α1-NKA signaling causes upregulation of the anti-apoptotic protein survivin and downregulation of the pro-apoptotic protein Smac/DIABLO via the activation of the PI3K → Akt pro-survival pathway with concomitant inhibition of the FoxO3 circuit, favoring cell division and primary liver carcinogenesis. Signalosome normalization using an inhibitory peptide resets apoptotic activity in malignant cells, with a significant decrease in tumor burden in vivo. Therefore, α1-NKA signalosome exercises in HCC the characteristic of a tumor suppressor, suggesting α1-NKA as a putative target for clinical therapy.
Collapse
Affiliation(s)
- Utibe-Abasi S. Udoh
- Department of Surgery, Marshall University Joan C. Edwards School of Medicine, Huntington, WV 25701, USA; (U.-A.S.U.); (M.B.); (P.K.R.); (J.D.S.); (G.S.); (M.S.); (J.A.S.); (Y.N.); (K.S.); (J.I.S.)
- Marshall Institute for Interdisciplinary Research, Marshall University Joan C. Edwards School of Medicine, Huntington, WV 25703, USA;
| | - Moumita Banerjee
- Department of Surgery, Marshall University Joan C. Edwards School of Medicine, Huntington, WV 25701, USA; (U.-A.S.U.); (M.B.); (P.K.R.); (J.D.S.); (G.S.); (M.S.); (J.A.S.); (Y.N.); (K.S.); (J.I.S.)
- Marshall Institute for Interdisciplinary Research, Marshall University Joan C. Edwards School of Medicine, Huntington, WV 25703, USA;
| | - Pradeep K. Rajan
- Department of Surgery, Marshall University Joan C. Edwards School of Medicine, Huntington, WV 25701, USA; (U.-A.S.U.); (M.B.); (P.K.R.); (J.D.S.); (G.S.); (M.S.); (J.A.S.); (Y.N.); (K.S.); (J.I.S.)
- Marshall Institute for Interdisciplinary Research, Marshall University Joan C. Edwards School of Medicine, Huntington, WV 25703, USA;
| | - Juan D. Sanabria
- Department of Surgery, Marshall University Joan C. Edwards School of Medicine, Huntington, WV 25701, USA; (U.-A.S.U.); (M.B.); (P.K.R.); (J.D.S.); (G.S.); (M.S.); (J.A.S.); (Y.N.); (K.S.); (J.I.S.)
- Marshall Institute for Interdisciplinary Research, Marshall University Joan C. Edwards School of Medicine, Huntington, WV 25703, USA;
| | - Gary Smith
- Department of Surgery, Marshall University Joan C. Edwards School of Medicine, Huntington, WV 25701, USA; (U.-A.S.U.); (M.B.); (P.K.R.); (J.D.S.); (G.S.); (M.S.); (J.A.S.); (Y.N.); (K.S.); (J.I.S.)
- Marshall Institute for Interdisciplinary Research, Marshall University Joan C. Edwards School of Medicine, Huntington, WV 25703, USA;
| | - Mathew Schade
- Department of Surgery, Marshall University Joan C. Edwards School of Medicine, Huntington, WV 25701, USA; (U.-A.S.U.); (M.B.); (P.K.R.); (J.D.S.); (G.S.); (M.S.); (J.A.S.); (Y.N.); (K.S.); (J.I.S.)
- Marshall Institute for Interdisciplinary Research, Marshall University Joan C. Edwards School of Medicine, Huntington, WV 25703, USA;
| | - Jacqueline A. Sanabria
- Department of Surgery, Marshall University Joan C. Edwards School of Medicine, Huntington, WV 25701, USA; (U.-A.S.U.); (M.B.); (P.K.R.); (J.D.S.); (G.S.); (M.S.); (J.A.S.); (Y.N.); (K.S.); (J.I.S.)
- Marshall Institute for Interdisciplinary Research, Marshall University Joan C. Edwards School of Medicine, Huntington, WV 25703, USA;
| | - Yuto Nakafuku
- Department of Surgery, Marshall University Joan C. Edwards School of Medicine, Huntington, WV 25701, USA; (U.-A.S.U.); (M.B.); (P.K.R.); (J.D.S.); (G.S.); (M.S.); (J.A.S.); (Y.N.); (K.S.); (J.I.S.)
- Marshall Institute for Interdisciplinary Research, Marshall University Joan C. Edwards School of Medicine, Huntington, WV 25703, USA;
| | - Komal Sodhi
- Department of Surgery, Marshall University Joan C. Edwards School of Medicine, Huntington, WV 25701, USA; (U.-A.S.U.); (M.B.); (P.K.R.); (J.D.S.); (G.S.); (M.S.); (J.A.S.); (Y.N.); (K.S.); (J.I.S.)
- Marshall Institute for Interdisciplinary Research, Marshall University Joan C. Edwards School of Medicine, Huntington, WV 25703, USA;
| | - Sandrine V. Pierre
- Marshall Institute for Interdisciplinary Research, Marshall University Joan C. Edwards School of Medicine, Huntington, WV 25703, USA;
| | - Joseph I. Shapiro
- Department of Surgery, Marshall University Joan C. Edwards School of Medicine, Huntington, WV 25701, USA; (U.-A.S.U.); (M.B.); (P.K.R.); (J.D.S.); (G.S.); (M.S.); (J.A.S.); (Y.N.); (K.S.); (J.I.S.)
- Marshall Institute for Interdisciplinary Research, Marshall University Joan C. Edwards School of Medicine, Huntington, WV 25703, USA;
| | - Juan R. Sanabria
- Department of Surgery, Marshall University Joan C. Edwards School of Medicine, Huntington, WV 25701, USA; (U.-A.S.U.); (M.B.); (P.K.R.); (J.D.S.); (G.S.); (M.S.); (J.A.S.); (Y.N.); (K.S.); (J.I.S.)
- Marshall Institute for Interdisciplinary Research, Marshall University Joan C. Edwards School of Medicine, Huntington, WV 25703, USA;
- Department of Nutrition and Metabolomic Core Facility, Case Western Reserve University School of Medicine, Cleveland, OH 44106, USA
- Correspondence: or
| |
Collapse
|
31
|
Chanda MK, Shudde CE, Piper TL, Zheng Y, Courtney AH. Combined analysis of T cell activation and T cell-mediated cytotoxicity by imaging cytometry. J Immunol Methods 2022; 506:113290. [PMID: 35644255 PMCID: PMC9202232 DOI: 10.1016/j.jim.2022.113290] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Revised: 04/28/2022] [Accepted: 05/23/2022] [Indexed: 11/24/2022]
Abstract
Immunotherapies for the treatment of cancer have spurred the development of new drugs that seek to harness the ability of T cells to recognize and kill malignant cells. There is a substantial need to evaluate how these experimental drugs influence T cell functional outputs in co-culture systems that contain cancerous cells. We describe an imaging cytometry-based platform that can simultaneously quantify activated T cells and the capacity of these T cells to kill cancer cells. Our platform was developed using the Nur77-GFP reporter system because GFP expression provides a direct readout of T cell activation that is induced by T cell antigen receptor (TCR) signaling. We combined the Nur77-GFP reporter system with a cancer cell line that displays a TCR-specific antigen and evaluated the relationship between T cell activation and cancer cell death. We demonstrate that imaging cytometry can be used to quantify the number of activated cytotoxic CD8+ T cells (CTLs) and the capacity of these CTLs to recognize and kill adherent MC38 cancer cells. We tested whether this platform could evaluate heterogenous lymphocyte populations by quantifying the proportion of antigen-specific activated T cells in co-cultures that contain unresponsive lymphocytes. The effects of a SRC family kinase inhibitor on CTL activation and MC38 cell death were also determined. Our findings demonstrate that the Nur77-GFP reporter system can be used to evaluate the effects of diverse treatment conditions on T cell-cancer co-cultures in a microtiter plate-based format by imaging cytometry. We anticipate the combined analysis of T cell activation with T cell-mediated cancer cell death can be used to rapidly assess immuno-oncology drug candidates and T cell-based therapeutics.
Collapse
|
32
|
Dedek A, Xu J, Lorenzo LÉ, Godin AG, Kandegedara CM, Glavina G, Landrigan JA, Lombroso PJ, De Koninck Y, Tsai EC, Hildebrand ME. Sexual dimorphism in a neuronal mechanism of spinal hyperexcitability across rodent and human models of pathological pain. Brain 2022; 145:1124-1138. [PMID: 35323848 PMCID: PMC9050559 DOI: 10.1093/brain/awab408] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 10/03/2021] [Accepted: 10/15/2021] [Indexed: 12/23/2022] Open
Abstract
The prevalence and severity of many chronic pain syndromes differ across sex, and recent studies have identified differences in immune signalling within spinal nociceptive circuits as a potential mediator. Although it has been proposed that sex-specific pain mechanisms converge once they reach neurons within the superficial dorsal horn, direct investigations using rodent and human preclinical pain models have been lacking. Here, we discovered that in the Freund’s adjuvant in vivo model of inflammatory pain, where both male and female rats display tactile allodynia, a pathological coupling between KCC2-dependent disinhibition and N-methyl-D-aspartate receptor (NMDAR) potentiation within superficial dorsal horn neurons was observed in male but not female rats. Unlike males, the neuroimmune mediator brain-derived neurotrophic factor (BDNF) failed to downregulate inhibitory signalling elements (KCC2 and STEP61) and upregulate excitatory elements (pFyn, GluN2B and pGluN2B) in female rats, resulting in no effect of ex vivo brain-derived neurotrophic factor on synaptic NMDAR responses in female lamina I neurons. Importantly, this sex difference in spinal pain processing was conserved from rodents to humans. As in rodents, ex vivo spinal treatment with BDNF downregulated markers of disinhibition and upregulated markers of facilitated excitation in superficial dorsal horn neurons from male but not female human organ donors. Ovariectomy in female rats recapitulated the male pathological pain neuronal phenotype, with BDNF driving a coupling between disinhibition and NMDAR potentiation in adult lamina I neurons following the prepubescent elimination of sex hormones in females. This discovery of sexual dimorphism in a central neuronal mechanism of chronic pain across species provides a foundational step towards a better understanding and treatment for pain in both sexes.
Collapse
Affiliation(s)
- Annemarie Dedek
- Department of Neuroscience, Carleton University, K1S 5B6 Ontario, Canada.,Neuroscience Program, Ottawa Hospital Research Institute, K1Y 4M9 Ontario, Canada
| | - Jian Xu
- Child Study Center, Yale University School of Medicine, New Haven, CT 06519, USA
| | | | - Antoine G Godin
- CERVO Brain Research Centre, Quebec Mental Health Institute, Quebec G1E 1T2, Canada.,Department of Psychiatry and Neuroscience, Université Laval, Quebec G1V 0A6, Canada
| | - Chaya M Kandegedara
- Department of Neuroscience, Carleton University, K1S 5B6 Ontario, Canada.,Neuroscience Program, Ottawa Hospital Research Institute, K1Y 4M9 Ontario, Canada
| | - Geneviève Glavina
- CERVO Brain Research Centre, Quebec Mental Health Institute, Quebec G1E 1T2, Canada
| | | | - Paul J Lombroso
- Child Study Center, Yale University School of Medicine, New Haven, CT 06519, USA
| | - Yves De Koninck
- CERVO Brain Research Centre, Quebec Mental Health Institute, Quebec G1E 1T2, Canada.,Department of Psychiatry and Neuroscience, Université Laval, Quebec G1V 0A6, Canada
| | - Eve C Tsai
- Neuroscience Program, Ottawa Hospital Research Institute, K1Y 4M9 Ontario, Canada.,Brain and Mind Research Institute, University of Ottawa, Ontario K1N 6N5, Canada.,Department of Surgery, Division of Neurosurgery, The Ottawa Hospital, Ontario K1Y 4E9, Canada
| | - Michael E Hildebrand
- Department of Neuroscience, Carleton University, K1S 5B6 Ontario, Canada.,Neuroscience Program, Ottawa Hospital Research Institute, K1Y 4M9 Ontario, Canada
| |
Collapse
|
33
|
Araki T, Watanabe Y, Okada Y, Murakami H, Ogo N, Asai A. Identification of serum and glucocorticoid-regulated kinase 1 as a regulator of signal transducer and activator of transcription 3 signaling. Exp Cell Res 2022; 413:113079. [PMID: 35202674 DOI: 10.1016/j.yexcr.2022.113079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Revised: 12/20/2021] [Accepted: 02/11/2022] [Indexed: 11/18/2022]
Abstract
Signal transducer and activator of transcription 3 (STAT3) plays key roles in cancer cell proliferation, invasion, and immunosuppression. In many human cancer cells, STAT3 is hyperactivated, which leads to tumor progression and drug resistance, and therefore STAT3 and its modulators are considered effective drug targets. However, the complex regulatory mechanisms of STAT3 have made it difficult to develop potent anticancer drugs that suppress its activity. Here, we report serum and glucocorticoid-regulated kinase 1 (SGK1) as a novel regulator of STAT3 signaling and an effective target for combination therapy with Janus kinase (JAK) inhibitors. We screened small molecules using a gain-of-function mutant of STAT3 resistant to JAK inhibition and found that an SGK1 inhibitor suppressed the constitutive activation of STAT3. Importantly, our results revealed that SGK1 also mediated the activation of wild-type STAT3. Further examination suggested that the tuberous sclerosis complex 2 and mammalian target of rapamycin signaling pathway were involved in STAT3 activation by SGK1. Finally, we demonstrated that SGK1 inhibition enhanced the inhibitory effect of a JAK inhibitor on STAT3 phosphorylation and cancer cell proliferation. Our findings provide new insights into the molecular mechanisms of STAT3 activation and suggest SGK1 as a potential target for STAT3-targeted combination cancer therapy.
Collapse
Affiliation(s)
- Toshihiro Araki
- Center for Drug Discovery, Graduate School of Pharmaceutical Sciences, University of Shizuoka, Suruga-ku, Shizuoka, Shizuoka, Japan; Discovery Technology Laboratories, Sohyaku. Innovative Research Division, Mitsubishi Tanabe Pharma Corporation, Muraoka-Higashi, Fujisawa, Kanagawa, Japan
| | - Yuuki Watanabe
- Center for Drug Discovery, Graduate School of Pharmaceutical Sciences, University of Shizuoka, Suruga-ku, Shizuoka, Shizuoka, Japan; Public Affairs and Policy Department, Mitsubishi Tanabe Pharma Corporation, Marunouchi, Chiyoda-ku, Tokyo, Japan
| | - Yusuke Okada
- Sohyaku Project Planning & Management Department, Sohyaku Innovative Research Division, Mitsubishi Tanabe Pharma Corporation, Marunouchi, Chiyoda-ku, Tokyo, Japan
| | - Hisashi Murakami
- Center for Drug Discovery, Graduate School of Pharmaceutical Sciences, University of Shizuoka, Suruga-ku, Shizuoka, Shizuoka, Japan
| | - Naohisa Ogo
- Center for Drug Discovery, Graduate School of Pharmaceutical Sciences, University of Shizuoka, Suruga-ku, Shizuoka, Shizuoka, Japan
| | - Akira Asai
- Center for Drug Discovery, Graduate School of Pharmaceutical Sciences, University of Shizuoka, Suruga-ku, Shizuoka, Shizuoka, Japan.
| |
Collapse
|
34
|
Richbart SD, Merritt JC, Moles EG, Brown KC, Adeluola AA, Finch PT, Hess JA, Tirona MT, Miles SL, Valentovic MA, Dasgupta AP. Spherical Invasion Assay: A Novel Method to Measure Invasion of Cancer Cells. Bio Protoc 2022; 12:e4320. [PMID: 35340295 PMCID: PMC8899551 DOI: 10.21769/bioprotoc.4320] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Revised: 09/13/2021] [Accepted: 12/14/2021] [Indexed: 10/01/2023] Open
Abstract
The invasion of tumor cells into the neighboring blood vessels and lymph nodes is a vital step for distant metastasis. Traditionally, the invasive activity of growth factors (or the anti-invasive activity of drugs) is measured with the Boyden chamber assay. However, this assay has a few disadvantages like poor physiological relevance of transwell inserts and an inability to control chemokine gradients. The Boyden chamber assay is one of the most prevalent methods to measure the invasion of cancer cells. It would be advantageous to develop another assay that could validate the results of the Boyden chamber assay. With this in mind, our laboratory developed the spherical invasion assay (SIA) to measure the pro-invasive activity of human cancer cells. The SIA also circumvents some of the drawbacks of the Boyden chamber assay. The present manuscript measures the anti-invasive activity of the Src kinase inhibitor PP2 in A549 human non-small cell lung carcinoma (NSCLC) cells using the SIA. The SIA protocol is comprised of two steps. In the first step, A549 human NSCLC cells (treated or not with PP2) were mixed with Matrigel and seeded in the middle of an eight-well chamber slide. After 24 h, a second layer of Matrigel was overlaid over the first layer. Over the course of the next 24 h, the A549 cells invade from the primary to the secondary Matrigel layers. Subsequently, the cells are visualized by phase-contrast microscopy and the images obtained are quantified using ImageJ to calculate the anti-invasive activity of PP2 in A549 cells. The results of the SIA correlate well with Boyden chamber assays. The SIA may be adapted for multiple experimental designs, such as drug screening (to combat invasion and metastasis), measuring the pro-invasive activity of growth factors, and elucidating the signaling pathways underlying the pro-invasive/anti-invasive activity of biological modifiers. Graphic abstract: Diagrammatic illustration of the spherical invasion assay ( Hurley et al., 2017 ) . A. The first layer is comprised of human cancer cells mixed in a 1:1 suspension with Phenol Red containing Matrigel (represented as LAYER 1 in the figure). After 24 h, the cancer cells grow and extend up to the boundary of this first layer. B. A second layer of 1:1 solution Phenol Red-free Matrigel, in Phenol Red-free RPMI (represented as LAYER 2 in the figure) is added on top of the first Matrigel spot. The cells are incubated for 24 h at 37°C. C. Over these 24 h, the cancer cells invade from the primary layer into the secondary Matrigel layer. The chamber slides are observed by phase-contrast microscopy. D. A representative photograph of the images obtained by the SIA is shown. The black arrow indicates the cancer cells invading into the second layer of Matrigel. The dotted line represents the interface between the two layers. The distance to which the cells have traveled (into the secondary Matrigel layer) is measured at ten sites (for each photograph) in a randomized double-blind fashion by three independent observers, using NIH ImageJ Version 1.47. This process is repeated for three separate photographic fields per sample.
Collapse
Affiliation(s)
- Stephen D. Richbart
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV, 25755, USA
| | - Justin C. Merritt
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV, 25755, USA
| | - Emily G. Moles
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV, 25755, USA
| | - Kathleen C. Brown
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV, 25755, USA
| | - Adeoluwa A. Adeluola
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV, 25755, USA
| | - Paul T. Finch
- Department of Oncology, Edwards Cancer Center, Joan C. Edwards School of Medicine, Marshall University, 1400 Hal Greer Boulevard, Huntington, West Virginia, WV 25755, USA
| | - Joshua A. Hess
- Department of Oncology, Edwards Cancer Center, Joan C. Edwards School of Medicine, Marshall University, 1400 Hal Greer Boulevard, Huntington, West Virginia, WV 25755, USA
| | - Maria T. Tirona
- Department of Hematology-Oncology, Edwards Cancer Center, Joan C. Edwards School of Medicine, Marshall University, 1400 Hal Greer Boulevard, Huntington, West Virginia, WV 25755, USA
| | - Sarah L. Miles
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV, 25755, USA
| | - Monica A. Valentovic
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV, 25755, USA
| | - And Piyali Dasgupta
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV, 25755, USA
| |
Collapse
|
35
|
Alfonzo-Méndez MA, Sochacki KA, Strub MP, Taraska JW. Dual clathrin and integrin signaling systems regulate growth factor receptor activation. Nat Commun 2022; 13:905. [PMID: 35173166 PMCID: PMC8850434 DOI: 10.1038/s41467-022-28373-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Accepted: 01/18/2022] [Indexed: 12/20/2022] Open
Abstract
The crosstalk between growth factor and adhesion receptors is key for cell growth and migration. In pathological settings, these receptors are drivers of cancer. Yet, how growth and adhesion signals are spatially organized and integrated is poorly understood. Here we use quantitative fluorescence and electron microscopy to reveal a mechanism where flat clathrin lattices partition and activate growth factor signals via a coordinated response that involves crosstalk between epidermal growth factor receptor (EGFR) and the adhesion receptor β5-integrin. We show that ligand-activated EGFR, Grb2, Src, and β5-integrin are captured by clathrin coated-structures at the plasma membrane. Clathrin structures dramatically grow in response to EGF into large flat plaques and provide a signaling platform that link EGFR and β5-integrin through Src-mediated phosphorylation. Disrupting this EGFR/Src/β5-integrin axis prevents both clathrin plaque growth and dampens receptor signaling. Our study reveals a reciprocal regulation between clathrin lattices and two different receptor systems to coordinate and enhance signaling. These findings have broad implications for the regulation of growth factor signaling, adhesion, and endocytosis.
Collapse
Affiliation(s)
- Marco A Alfonzo-Méndez
- Biochemistry and Biophysics Center, National Heart, Lung, and Blood Institute, National Institutes of Health, 50 South Drive, Building 50, Bethesda, MD, 20892, USA
| | - Kem A Sochacki
- Biochemistry and Biophysics Center, National Heart, Lung, and Blood Institute, National Institutes of Health, 50 South Drive, Building 50, Bethesda, MD, 20892, USA
| | - Marie-Paule Strub
- Biochemistry and Biophysics Center, National Heart, Lung, and Blood Institute, National Institutes of Health, 50 South Drive, Building 50, Bethesda, MD, 20892, USA
| | - Justin W Taraska
- Biochemistry and Biophysics Center, National Heart, Lung, and Blood Institute, National Institutes of Health, 50 South Drive, Building 50, Bethesda, MD, 20892, USA.
| |
Collapse
|
36
|
Owczarek C, Ortiz-Zapater E, Kim J, Papaevangelou E, Santis G, Parsons M. CAR Co-Operates With Integrins to Promote Lung Cancer Cell Adhesion and Invasion. Front Oncol 2022; 12:829313. [PMID: 35252000 PMCID: PMC8889575 DOI: 10.3389/fonc.2022.829313] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2021] [Accepted: 01/19/2022] [Indexed: 12/14/2022] Open
Abstract
The coxsackie and adenovirus receptor (CAR) is a member of the junctional adhesion molecule (JAM) family of adhesion receptors and is localised to epithelial cell tight and adherens junctions. CAR has been shown to be highly expressed in lung cancer where it is proposed to promote tumor growth and regulate epithelial mesenchymal transition (EMT), however the potential role of CAR in lung cancer metastasis remains poorly understood. To better understand the role of this receptor in tumor progression, we manipulated CAR expression in both epithelial-like and mesenchymal-like lung cancer cells. In both cases, CAR overexpression promoted tumor growth in vivo in immunocompetent mice and increased cell adhesion in the lung after intravenous injection without altering the EMT properties of each cell line. Overexpression of WTCAR resulted in increased invasion in 3D models and enhanced β1 integrin activity in both cell lines, and this was dependent on phosphorylation of the CAR cytoplasmic tail. Furthermore, phosphorylation of CAR was enhanced by substrate stiffness in vitro, and CAR expression increased at the boundary of solid tumors in vivo. Moreover, CAR formed a complex with the focal adhesion proteins Src, Focal Adhesion Kinase (FAK) and paxillin and promoted activation of the Guanine Triphosphate (GTP)-ase Ras-related Protein 1 (Rap1), which in turn mediated enhanced integrin activation. Taken together, our data demonstrate that CAR contributes to lung cancer metastasis via promotion of cell-matrix adhesion, providing new insight into co-operation between cell-cell and cell-matrix proteins that regulate different steps of tumorigenesis.
Collapse
Affiliation(s)
- Claudia Owczarek
- Randall Centre for Cell and Molecular Biophysics, King’s College London, London, United Kingdom
| | - Elena Ortiz-Zapater
- Randall Centre for Cell and Molecular Biophysics, King’s College London, London, United Kingdom
- School of Biomedical Engineering and Imaging Sciences, King’s College London, St Thomas Hospital, London, United Kingdom
| | - Jana Kim
- School of Biomedical Engineering and Imaging Sciences, King’s College London, St Thomas Hospital, London, United Kingdom
| | - Efthymia Papaevangelou
- Peter Gorer Department of Immunobiology, School of Immunology and Microbial Science, King’s College London, London, United Kingdom
| | - George Santis
- Peter Gorer Department of Immunobiology, School of Immunology and Microbial Science, King’s College London, London, United Kingdom
| | - Maddy Parsons
- Randall Centre for Cell and Molecular Biophysics, King’s College London, London, United Kingdom
- *Correspondence: Maddy Parsons,
| |
Collapse
|
37
|
Zhang H, Wang C, Fan J, Zhu Q, Feng Y, Pan J, Peng J, Shi J, Qi S, Liu Y. CD47 Promotes the Proliferation and Migration of Adamantinomatous Craniopharyngioma Cells by Activating the MAPK/ERK Pathway, and CD47 Blockade Facilitates Microglia‐mediated Phagocytosis. Neuropathol Appl Neurobiol 2022; 48:e12795. [PMID: 35156226 DOI: 10.1111/nan.12795] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Revised: 12/14/2021] [Accepted: 02/05/2022] [Indexed: 11/28/2022]
Affiliation(s)
- Huarong Zhang
- Department of Neurosurgery, Nanfang Hospital Southern Medical University Guangzhou China
| | - Chaohu Wang
- Department of Neurosurgery, Nanfang Hospital Southern Medical University Guangzhou China
| | - Jun Fan
- Department of Neurosurgery, Nanfang Hospital Southern Medical University Guangzhou China
| | - Qianchao Zhu
- Department of Neurosurgery, Nanfang Hospital Southern Medical University Guangzhou China
| | - Yiwen Feng
- Department of Neurosurgery, Nanfang Hospital Southern Medical University Guangzhou China
| | - Jun Pan
- Department of Neurosurgery, Nanfang Hospital Southern Medical University Guangzhou China
| | - Junxiang Peng
- Department of Neurosurgery, Nanfang Hospital Southern Medical University Guangzhou China
| | - Jin Shi
- Department of Neurosurgery, Nanfang Hospital Southern Medical University Guangzhou China
| | - Songtao Qi
- Department of Neurosurgery, Nanfang Hospital Southern Medical University Guangzhou China
| | - Yi Liu
- Department of Neurosurgery, Nanfang Hospital Southern Medical University Guangzhou China
| |
Collapse
|
38
|
Khan I, Koide A, Zuberi M, Ketavarapu G, Denbaum E, Teng KW, Rhett JM, Spencer-Smith R, Hobbs GA, Camp ER, Koide S, O'Bryan JP. Identification of the nucleotide-free state as a therapeutic vulnerability for inhibition of selected oncogenic RAS mutants. Cell Rep 2022; 38:110322. [PMID: 35139380 PMCID: PMC8936000 DOI: 10.1016/j.celrep.2022.110322] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Revised: 11/12/2021] [Accepted: 01/10/2022] [Indexed: 11/16/2022] Open
Abstract
RAS guanosine triphosphatases (GTPases) are mutated in nearly 20% of human tumors, making them an attractive therapeutic target. Following our discovery that nucleotide-free RAS (apo RAS) regulates cell signaling, we selectively target this state as an approach to inhibit RAS function. Here, we describe the R15 monobody that exclusively binds the apo state of all three RAS isoforms in vitro, regardless of the mutation status, and captures RAS in the apo state in cells. R15 inhibits the signaling and transforming activity of a subset of RAS mutants with elevated intrinsic nucleotide exchange rates (i.e., fast exchange mutants). Intracellular expression of R15 reduces the tumor-forming capacity of cancer cell lines driven by select RAS mutants and KRAS(G12D)-mutant patient-derived xenografts (PDXs). Thus, our approach establishes an opportunity to selectively inhibit a subset of RAS mutants by targeting the apo state with drug-like molecules. Khan et al. develop a high-affinity monobody to nucleotide-free RAS that, when expressed intracellularly, inhibits oncogenic RAS-mediated signaling and tumorigenesis. This study reveals the feasibility of targeting the nucleotide-free state to inhibit tumors driven by oncogenic RAS mutants that possess elevated nucleotide exchange activity.
Collapse
Affiliation(s)
- Imran Khan
- Department of Cell and Molecular Pharmacology and Experimental Therapeutics, Medical University of South Carolina, Charleston, SC 29425, USA; Hollings Cancer Center, Medical University of South Carolina, Charleston, SC 29425, USA; Ralph H. Johnson VA Medical Center, Charleston, SC 29401, USA; Department of Pharmacology, University of Illinois at Chicago, Chicago, IL 60612, USA
| | - Akiko Koide
- Perlmutter Cancer Center, New York University Langone Health, New York, NY 10016, USA; Department of Medicine, New York University School of Medicine, New York, NY 10016, USA
| | - Mariyam Zuberi
- Department of Cell and Molecular Pharmacology and Experimental Therapeutics, Medical University of South Carolina, Charleston, SC 29425, USA; Hollings Cancer Center, Medical University of South Carolina, Charleston, SC 29425, USA
| | - Gayatri Ketavarapu
- Perlmutter Cancer Center, New York University Langone Health, New York, NY 10016, USA
| | - Eric Denbaum
- Perlmutter Cancer Center, New York University Langone Health, New York, NY 10016, USA
| | - Kai Wen Teng
- Perlmutter Cancer Center, New York University Langone Health, New York, NY 10016, USA
| | - J Matthew Rhett
- Department of Cell and Molecular Pharmacology and Experimental Therapeutics, Medical University of South Carolina, Charleston, SC 29425, USA; Hollings Cancer Center, Medical University of South Carolina, Charleston, SC 29425, USA
| | - Russell Spencer-Smith
- Department of Pharmacology, University of Illinois at Chicago, Chicago, IL 60612, USA
| | - G Aaron Hobbs
- Department of Cell and Molecular Pharmacology and Experimental Therapeutics, Medical University of South Carolina, Charleston, SC 29425, USA; Hollings Cancer Center, Medical University of South Carolina, Charleston, SC 29425, USA
| | - Ernest Ramsay Camp
- Department of Surgery, Medical University of South Carolina, Charleston, SC 29425, USA; Hollings Cancer Center, Medical University of South Carolina, Charleston, SC 29425, USA; Ralph H. Johnson VA Medical Center, Charleston, SC 29401, USA
| | - Shohei Koide
- Perlmutter Cancer Center, New York University Langone Health, New York, NY 10016, USA; Department of Biochemistry and Molecular Pharmacology, New York University School of Medicine, New York, NY 10016, USA.
| | - John P O'Bryan
- Department of Cell and Molecular Pharmacology and Experimental Therapeutics, Medical University of South Carolina, Charleston, SC 29425, USA; Hollings Cancer Center, Medical University of South Carolina, Charleston, SC 29425, USA; Ralph H. Johnson VA Medical Center, Charleston, SC 29401, USA; Department of Pharmacology, University of Illinois at Chicago, Chicago, IL 60612, USA.
| |
Collapse
|
39
|
Li H, Zhou X, Chen R, Xiao Y, Zhou T. The Src-Kinase Fyn is Required for Cocaine-Associated Memory Through Regulation of Tau. Front Pharmacol 2022; 13:769827. [PMID: 35185557 PMCID: PMC8850722 DOI: 10.3389/fphar.2022.769827] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Accepted: 01/10/2022] [Indexed: 11/24/2022] Open
Abstract
Drug-associated context-induced relapse of cocaine-seeking behaviour requires the retrieval of drug-associated memory. Studies exploring the underlying neurobiological mechanism of drug memory formation will likely contribute to the development of treatments for drug addiction and the prevention of relapse. In our study, we applied a cocaine-conditioned place preference (CPP) paradigm and a self-administration paradigm (two drug-associated memory formation model) to confirm the hypothesis that the Src kinase Fyn critically regulates cocaine-associated memory formation in the hippocampus. For this experiment, we administered the Src kinase inhibitor PP2 into the bilateral hippocampus before cocaine-CPP and self-administration training, and the results showed that pharmacological manipulation of the Src kinase Fyn activity significantly attenuated the response to cocaine-paired cues in the cocaine-CPP and self-administration paradigms, indicating that hippocampal Fyn activity contributes to cocaine-associated memory formation. In addition, the regulation of cocaine-associated memory formation by Fyn depends on Tau expression, as restoring Tau to normal levels disrupted cocaine memory formation. Together, these results indicate that hippocampal Fyn activity plays a key role in the formation of cocaine-associated memory, which underlies cocaine-associated contextual stimulus-mediated regulation of cocaine-seeking behaviour, suggesting that Fyn represents a promising therapeutic target for weakening cocaine-related memory and treating cocaine addiction.
Collapse
Affiliation(s)
- Hongchun Li
- National Chengdu Center for Safety Evaluation of Drugs, State Key Laboratory of Biotherapy/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu, China
- *Correspondence: Hongchun Li,
| | - Xinglong Zhou
- Department of Respiratory and Critical Care Medicine, Targeted Tracer Research and Development Laboratory, West China Hospital, Sichuan University, Chengdu, China
| | - Rong Chen
- National Chengdu Center for Safety Evaluation of Drugs, State Key Laboratory of Biotherapy/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu, China
| | - Yuzhou Xiao
- National Chengdu Center for Safety Evaluation of Drugs, State Key Laboratory of Biotherapy/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu, China
| | - Tao Zhou
- Department of Drug and Equipment, China Rongtong Bayi Orthopaedic Hospital, Chengdu, China
| |
Collapse
|
40
|
Chen X, Huang Y, Xu W, Cai Y, Yang Y. 4-Aminopyrazolopyrimidine scaffold and its deformation in the design of tyrosine and serine/threonine kinase inhibitors in medicinal chemistry. RSC Med Chem 2022; 13:1008-1028. [DOI: 10.1039/d2md00139j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Accepted: 07/08/2022] [Indexed: 11/21/2022] Open
Abstract
Deformation of the 4-aminopyrazolopyrimidine scaffold in designing small-molecule inhibitors.
Collapse
Affiliation(s)
- Xiaolu Chen
- Department of Pharmacy, Jingzhou Hospital Affiliated to Yangtze University, Jingzhou, Hubei 434020, China
| | - Yajiao Huang
- Department of Pharmacy, Jingzhou Hospital Affiliated to Yangtze University, Jingzhou, Hubei 434020, China
| | - Wanghan Xu
- Affiliated Xiaoshan Hospital, Hangzhou Normal University, Hangzhou 311202, Zhejiang, P. R. China
| | - Yuepiao Cai
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, 325035, China
| | - Yuanrong Yang
- Department of Pharmacy, Jingzhou Hospital Affiliated to Yangtze University, Jingzhou, Hubei 434020, China
| |
Collapse
|
41
|
Marotta G, Basagni F, Rosini M, Minarini A. Role of Fyn Kinase Inhibitors in Switching Neuroinflammatory Pathways. Curr Med Chem 2021; 29:4738-4755. [PMID: 34939537 DOI: 10.2174/0929867329666211221153719] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Revised: 11/18/2021] [Accepted: 11/22/2021] [Indexed: 11/22/2022]
Abstract
Fyn kinase is a member of the Src non-receptor tyrosine kinase family. Fyn is involved in multiple signaling pathways extending from cell proliferation and differentiation to cell adhesion and cell motility, and it has been found to be overexpressed in various types of cancers. In the central nervous system, Fyn exerts several different functions such as axon-glial signal transduction, oligodendrocyte maturation and myelination, and it is implicated in neuroinflammatory processes. Based on these premises, Fyn emerges as an attractive target in cancer and neurodegenerative disease therapy, particularly Alzheimer disease (AD), based on its activation by Aβ via cellular prion protein and its interaction with tau protein. However, Fyn is also a challenging target since the Fyn inhibitors discovered so far, due to the relevant homology of Fyn with other kinases, suffer from off-target effects. This review covers the efforts performed in the last decade to identify and optimize small molecules that effectively inhibit Fyn, both in enzymatic and in cell assays, including drug repositioning practices, as an opportunity of therapeutic intervention in neurodegeneration.
Collapse
Affiliation(s)
- Giambattista Marotta
- Department of Pharmacy and Biotechnology, Alma Mater Studiorum - University of Bologna, Via Belmeloro 6, 40126-Bologna. Italy
| | - Filippo Basagni
- Department of Pharmacy and Biotechnology, Alma Mater Studiorum - University of Bologna, Via Belmeloro 6, 40126-Bologna. Italy
| | - Michela Rosini
- Department of Pharmacy and Biotechnology, Alma Mater Studiorum - University of Bologna, Via Belmeloro 6, 40126-Bologna. Italy
| | - Anna Minarini
- Department of Pharmacy and Biotechnology, Alma Mater Studiorum - University of Bologna, Via Belmeloro 6, 40126-Bologna. Italy
| |
Collapse
|
42
|
Cen C, Wang F, Xiong K, Jiang L, Hou X. Protective effects of Coridius chinensis extracts on rat reproductive damage induced by manganese. Andrologia 2021; 54:e14326. [PMID: 34820869 PMCID: PMC9285684 DOI: 10.1111/and.14326] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Revised: 10/22/2021] [Accepted: 11/04/2021] [Indexed: 11/30/2022] Open
Abstract
Manganese (Mn2+ ) is an environmental pollutant, and testis is one of the main target organs. Coridius chinensis (C. chinensis), a traditional Chinese medicine, has been shown widely used in treating various kinds of pain, nephropathy and erectile dysfunction. In our recent study, we found that Mn2+ exposure caused testicular injury could be rescued in part by the antioxidant activity of C. chinensis extracts (CcE). However, there is dearth of extensive knowledge on the therapeutic effects of C. chinensis on manganese-induced reproductive toxicity. In the present study, Sprague-Dawley (SD) rats were administered manganese chloride alone or co-treated with CcE for 30 consecutive days. Results indicated that C. chinensis mediated suppression of spermatogenic dysfunction, and the number of apoptotic cells was significantly decreased in CcE-treated groups. Furthermore, the disintegrated testicular ultrastructural structure caused by Mn2+ was partially repaired in CcE-treated groups. C. chinensis significantly inhibited Mn2+ -induced decline in biomarkers of blood-testis barrier (BTB) including occludin, claudin1, zonula occludens-1 and junctional adhesion molecule 1, whereas it decreased the expression of focal adhesion kinase (FAK) and c-Src. This study demonstrated that c-Src and FAK might be involved in the repair of Mn2+ -induced testicular injury by C. chinensis, but further research is needed.
Collapse
Affiliation(s)
- Changhuo Cen
- Department of Cell Biology, Zunyi Medical University, Zunyi, China
| | - Fengyue Wang
- Department of Cell Biology, Zunyi Medical University, Zunyi, China
| | - Keyi Xiong
- Department of Cell Biology, Zunyi Medical University, Zunyi, China
| | - Lin Jiang
- Department of Cell Biology, Zunyi Medical University, Zunyi, China
| | - Xiaohui Hou
- Department of Cell Biology, Zunyi Medical University, Zunyi, China
| |
Collapse
|
43
|
Differentiation of fetal hematopoietic stem cells requires ARID4B to restrict autocrine KITLG/KIT-Src signaling. Cell Rep 2021; 37:110036. [PMID: 34818550 PMCID: PMC8722094 DOI: 10.1016/j.celrep.2021.110036] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2020] [Revised: 07/15/2021] [Accepted: 11/01/2021] [Indexed: 11/26/2022] Open
Abstract
Balance between the hematopoietic stem cell (HSC) duality to either possess self-renewal capacity or differentiate into multipotency progenitors (MPPs) is crucial for maintaining homeostasis of the hematopoietic stem/progenitor cell (HSPC) compartment. To retain the HSC self-renewal activity, KIT, a receptor tyrosine kinase, in HSCs is activated by its cognate ligand KITLG originating from niche cells. Here, we show that AT-rich interaction domain 4B (ARID4B) interferes with KITLG/KIT signaling, consequently allowing HSC differentiation. Conditional Arid4b knockout in mouse hematopoietic cells blocks fetal HSC differentiation, preventing hematopoiesis. Mechanistically, ARID4B-deficient HSCs self-express KITLG and overexpress KIT. As to downstream pathways of KITLG/KIT signaling, inhibition of Src family kinases rescues the HSC differentiation defect elicited by ARID4B loss. In summary, the intrinsic ARID4B-KITLG/KIT-Src axis is an HSPC regulatory program that enables the differentiation state, while KIT stimulation by KITLG from niche cells preserves the HSPC undifferentiated pool. Hematopoietic stem cells (HSCs) at the top of the hematopoietic hierarchy are able to self-renew and differentiate to mature blood cells. Young et al. report that an HSC self-control mechanism established by ARID4B ensures HSC differentiation. ARID4B-deficient HSCs produce KITLG to stimulate KIT, leading to blockage of HSC differentiation and eventual hematopoietic failure.
Collapse
|
44
|
Petrič M, Vidović A, Dolinar K, Miš K, Chibalin AV, Pirkmajer S. Phosphorylation of Na +,K +-ATPase at Tyr10 of the α1-Subunit is Suppressed by AMPK and Enhanced by Ouabain in Cultured Kidney Cells. J Membr Biol 2021; 254:531-548. [PMID: 34748042 PMCID: PMC8595181 DOI: 10.1007/s00232-021-00209-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Accepted: 10/27/2021] [Indexed: 01/03/2023]
Abstract
Na+,K+-ATPase (NKA) is essential for maintenance of cellular and whole-body water and ion homeostasis. In the kidney, a major site of ion transport, NKA consumes ~ 50% of ATP, indicating a tight coordination of NKA and energy metabolism. AMP-activated protein kinase (AMPK), a cellular energy sensor, regulates NKA by modulating serine phosphorylation of the α1-subunit, but whether it modulates other important regulatory phosphosites, such as Tyr10, is unknown. Using human kidney (HK-2) cells, we determined that the phosphorylation of Tyr10 was stimulated by the epidermal growth factor (EGF), which was opposed by inhibitors of Src kinases (PP2), tyrosine kinases (genistein), and EGF receptor (EGFR, gefitinib). AMPK activators AICAR and A-769662 suppressed the EGF-stimulated phosphorylation of EGFR (Tyr1173) and NKAα1 at Tyr10. The phosphorylation of Src (Tyr416) was unaltered by AICAR and increased by A-769662. Conversely, ouabain (100 nM), a pharmacological NKA inhibitor and a putative adrenocortical hormone, enhanced the EGF-stimulated Tyr10 phosphorylation without altering the phosphorylation of EGFR (Tyr1173) or Src (Tyr416). Ouabain (100–1000 nM) increased the ADP:ATP ratio, while it suppressed the lactate production and the oxygen consumption rate in a dose-dependent manner. Treatment with ouabain or gene silencing of NKAα1 or NKAα3 subunit did not activate AMPK. In summary, AMPK activators and ouabain had antagonistic effects on the phosphorylation of NKAα1 at Tyr10 in cultured HK-2 cells, which implicates a role for Tyr10 in coordinated regulation of NKA-mediated ion transport and energy metabolism.
Collapse
Affiliation(s)
- Metka Petrič
- Faculty of Medicine, Institute of Pathophysiology, University of Ljubljana, Ljubljana, Slovenia
| | - Anja Vidović
- Faculty of Medicine, Institute of Pathophysiology, University of Ljubljana, Ljubljana, Slovenia
| | - Klemen Dolinar
- Faculty of Medicine, Institute of Pathophysiology, University of Ljubljana, Ljubljana, Slovenia
| | - Katarina Miš
- Faculty of Medicine, Institute of Pathophysiology, University of Ljubljana, Ljubljana, Slovenia
| | - Alexander V Chibalin
- National Research Tomsk State University, Tomsk, Russia. .,Department of Molecular Medicine and Surgery, Integrative Physiology, Karolinska Institutet, Stockholm, Sweden.
| | - Sergej Pirkmajer
- Faculty of Medicine, Institute of Pathophysiology, University of Ljubljana, Ljubljana, Slovenia.
| |
Collapse
|
45
|
Cheng S, Jin P, Li H, Pei D, Shu X. Evaluation of CML TKI Induced Cardiovascular Toxicity and Development of Potential Rescue Strategies in a Zebrafish Model. Front Pharmacol 2021; 12:740529. [PMID: 34733159 PMCID: PMC8558359 DOI: 10.3389/fphar.2021.740529] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Accepted: 10/04/2021] [Indexed: 01/20/2023] Open
Abstract
Tyrosine kinase inhibitors (TKIs) to BCR-ABL1 have been successfully used to treat chronic myeloid leukemia (CML), however, multiple TKI-associated adverse events have been reported and become an emerging problem in patients. The mechanisms of TKI-induced toxicity are not fully understood and it remains challenging to predict potential cardiovascular toxicity of a compound. In this study, we established a zebrafish model to evaluate potential in vivo cardiovascular toxicity of TKIs. We treated the endothelium labeled Tg(kdrl:EGFP) transgenic zebrafish embryos with TKIs then performed confocal imaging to evaluate their vascular structure and function. We found that among FDA approved CML TKIs, ponatinib (the only approved TKI that is efficacious to T315I mutation) is the most toxic one. We then evaluated safety profiles of several clinical stage kinase inhibitors that can target T315I and found that HQP1351 treatment leads to vasculopathies similar to those induced by ponatinib while the allosteric ABL inhibitor asciminib does not induce noticeable cardiovascular defects, indicating it could be a promising therapeutic reagent for patients with T315I mutation. We then performed proof-of-principle study to rescue those TKI-induced cardiovascular toxicities and found that, among commonly used anti-hypertensive drugs, angiotensin receptor blockers such as azilsartan and valsartan are able to reduce ponatinib or HQP1351 induced cardiovascular toxicities. Together, this study establishes a zebrafish model that can be useful to evaluate cardiovascular toxicity of TKIs as well as to develop strategies to minimize TKI-induced adverse events.
Collapse
Affiliation(s)
- Shan Cheng
- School of Life Science, Westlake University, Hangzhou, China.,CAS Key Laboratory of Regenerative Biology, Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China
| | - Pan Jin
- Joint School of Life Sciences, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou Medical University, Guangzhou, China
| | - Heying Li
- CAS Key Laboratory of Regenerative Biology, Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China
| | - Duanqing Pei
- School of Life Science, Westlake University, Hangzhou, China.,CAS Key Laboratory of Regenerative Biology, Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China.,Centre for Regenerative Medicine and Health, Hong Kong Institute of Science and Innovation, Chinese Academy of Sciences, Hong Kong, Hong Kong, SAR China
| | - Xiaodong Shu
- CAS Key Laboratory of Regenerative Biology, Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China.,Joint School of Life Sciences, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou Medical University, Guangzhou, China.,Guangzhou Regenerative Medicine and Health Guangdong Laboratory (GRMH-GDL), Guangzhou, China
| |
Collapse
|
46
|
Molinaro C, Martoriati A, Lescuyer A, Fliniaux I, Tulasne D, Cailliau K. 3-phosphoinositide-dependent protein kinase 1 (PDK1) mediates crosstalk between Src and Akt pathways in MET receptor signaling. FEBS Lett 2021; 595:2655-2664. [PMID: 34551132 DOI: 10.1002/1873-3468.14195] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Revised: 09/13/2021] [Accepted: 09/16/2021] [Indexed: 11/12/2022]
Abstract
The high-affinity tyrosine kinase receptor MET plays a pivotal role in several facets of cell regulation. Although its mitogenic effect is well documented, some aspects of connection patterns between signaling pathways involved in cell cycle progression remain to be deciphered. We have used a tractable heterologous expression system, the Xenopus oocyte, to detect connections between distinct MET signaling cascades involved in G2/M progression. Our results reveal that Src acts as an adapter via its SH2 domain to recruit 3-phosphoinositide-dependent protein kinase 1 (PDK1) to the MET signaling complex leading to Akt phosphorylation. These data define an original crosstalk between Src and Akt signaling pathways that contributes to MET-induced entry into the M phase, and deserves further investigation in pathologies harboring deregulation of this receptor.
Collapse
Affiliation(s)
- Caroline Molinaro
- Univ. Lille, CNRS, UMR 8576-UGSF-Unité de Glycobiologie Structurale et Fonctionnelle, Lille, France
| | - Alain Martoriati
- Univ. Lille, CNRS, UMR 8576-UGSF-Unité de Glycobiologie Structurale et Fonctionnelle, Lille, France
| | - Arlette Lescuyer
- Univ. Lille, CNRS, UMR 8576-UGSF-Unité de Glycobiologie Structurale et Fonctionnelle, Lille, France
| | - Ingrid Fliniaux
- Inserm U1003-PHYCEL-Cellular Physiology, University of Lille, Lille, France
| | - David Tulasne
- CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, UMR9020 - UMR1277 - Canther - Cancer Heterogeneity, Plasticity and Resistance to Therapies, Université de Lille, Lille, France
| | - Katia Cailliau
- Univ. Lille, CNRS, UMR 8576-UGSF-Unité de Glycobiologie Structurale et Fonctionnelle, Lille, France
| |
Collapse
|
47
|
p21-Activated kinase 1 (PAK1) in aging and longevity: An overview. Ageing Res Rev 2021; 71:101443. [PMID: 34390849 DOI: 10.1016/j.arr.2021.101443] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Revised: 07/26/2021] [Accepted: 08/10/2021] [Indexed: 02/08/2023]
Abstract
The p21-activated kinases (PAKs) belong to serine/threonine kinases family, regulated by ∼21 kDa small signaling G proteins RAC1 and CDC42. The mammalian PAK family comprises six members (PAK1-6) that are classified into two groups (I and II) based on their domain architecture and regulatory mechanisms. PAKs are implicated in a wide range of cellular functions. PAK1 has recently attracted increasing attention owing to its involvement in oncogenesis, tumor progression, and metastasis as well as several life-limiting diseases and pathological conditions. In Caenorhabditis elegans, PAK1 functions limit the lifespan under basal conditions by inhibiting forkhead transcription factor DAF-16. Interestingly, PAK depletion extended longevity and attenuated the onset of age-related phenotypes in a premature-aging mouse model and delayed senescence in mammalian fibroblasts. These observations implicate PAKs as not only oncogenic but also aging kinases. Therefore, PAK-targeting genetic and/or pharmacological interventions, particularly PAK1-targeting, could be a viable strategy for developing cancer therapies with relatively no side effects and promoting healthy longevity. This review describes PAK family proteins, their biological functions, and their role in regulating aging and longevity using C. elegans. Moreover, we discuss the effect of small-molecule PAK1 inhibitors on the lifespan and healthspan of C. elegans.
Collapse
|
48
|
M Gagné L, Morin N, Lavoie N, Bisson N, Lambert JP, Mallette FA, Huot MÉ. Tyrosine phosphorylation of DEPTOR functions as a molecular switch to activate mTOR signaling. J Biol Chem 2021; 297:101291. [PMID: 34634301 PMCID: PMC8551655 DOI: 10.1016/j.jbc.2021.101291] [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: 04/29/2021] [Revised: 09/24/2021] [Accepted: 10/06/2021] [Indexed: 11/25/2022] Open
Abstract
Metabolic dysfunction is a major driver of tumorigenesis. The serine/threonine kinase mechanistic target of rapamycin (mTOR) constitutes a key central regulator of metabolic pathways promoting cancer cell proliferation and survival. mTOR activity is regulated by metabolic sensors as well as by numerous factors comprising the phosphatase and tensin homolog/PI3K/AKT canonical pathway, which are often mutated in cancer. However, some cancers displaying constitutively active mTOR do not carry alterations within this canonical pathway, suggesting alternative modes of mTOR regulation. Since DEPTOR, an endogenous inhibitor of mTOR, was previously found to modulate both mTOR complexes 1 and 2, we investigated the different post-translational modification that could affect its inhibitory function. We found that tyrosine (Tyr) 289 phosphorylation of DEPTOR impairs its interaction with mTOR, leading to increased mTOR activation. Using proximity biotinylation assays, we identified SYK (spleen tyrosine kinase) as a kinase involved in DEPTOR Tyr 289 phosphorylation in an ephrin (erythropoietin-producing hepatocellular carcinoma) receptor–dependent manner. Altogether, our work reveals that phosphorylation of Tyr 289 of DEPTOR represents a novel molecular switch involved in the regulation of both mTOR complex 1 and mTOR complex 2.
Collapse
Affiliation(s)
- Laurence M Gagné
- Centre de Recherche sur le Cancer de l'Université Laval, Québec, Quebec, Canada; Centre de Recherche du CHU de Québec-Université Laval, Québec, Quebec, Canada
| | - Nadine Morin
- Centre de Recherche sur le Cancer de l'Université Laval, Québec, Quebec, Canada; Centre de Recherche du CHU de Québec-Université Laval, Québec, Quebec, Canada
| | - Noémie Lavoie
- Centre de Recherche sur le Cancer de l'Université Laval, Québec, Quebec, Canada; Centre de Recherche du CHU de Québec-Université Laval, Québec, Quebec, Canada; PROTEO - Regroupement québécois de recherche sur la fonction, l'ingénierie et les applications des protéines, Québec, Quebec, Canada
| | - Nicolas Bisson
- Centre de Recherche sur le Cancer de l'Université Laval, Québec, Quebec, Canada; Centre de Recherche du CHU de Québec-Université Laval, Québec, Quebec, Canada; PROTEO - Regroupement québécois de recherche sur la fonction, l'ingénierie et les applications des protéines, Québec, Quebec, Canada; Département de Biologie moléculaire, biochimie médicale et pathologie, Université Laval, Québec, Quebec, Canada
| | - Jean-Philippe Lambert
- Centre de Recherche sur le Cancer de l'Université Laval, Québec, Quebec, Canada; Centre de Recherche du CHU de Québec-Université Laval, Québec, Quebec, Canada; Département de Médecine Moléculaire, Université Laval, Québec, Quebec, Canada
| | - Frédérick A Mallette
- Département de Biochimie et Médecine moléculaire, Université de Montréal, Montréal, Quebec, Canada; Chromatin Structure and Cellular Senescence Research Unit, Maisonneuve-Rosemont Hospital Research Centre, Montréal, Quebec, Canada; Département de Médecine, Université de Montréal, Montréal, Quebec, Canada
| | - Marc-Étienne Huot
- Centre de Recherche sur le Cancer de l'Université Laval, Québec, Quebec, Canada; Centre de Recherche du CHU de Québec-Université Laval, Québec, Quebec, Canada; Département de Biologie moléculaire, biochimie médicale et pathologie, Université Laval, Québec, Quebec, Canada.
| |
Collapse
|
49
|
Carroll DJ, Cao Y, Bochner BS, O’Sullivan JA. Siglec-8 Signals Through a Non-Canonical Pathway to Cause Human Eosinophil Death In Vitro. Front Immunol 2021; 12:737988. [PMID: 34721399 PMCID: PMC8549629 DOI: 10.3389/fimmu.2021.737988] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Accepted: 09/14/2021] [Indexed: 12/19/2022] Open
Abstract
Sialic acid-binding immunoglobulin-like lectin (Siglec)-8 is a glycan-binding receptor bearing immunoreceptor tyrosine-based inhibitory and switch motifs (ITIM and ITSM, respectively) that is selectively expressed on eosinophils, mast cells, and, to a lesser extent, basophils. Previous work has shown that engagement of Siglec-8 on IL-5-primed eosinophils causes cell death via CD11b/CD18 integrin-mediated adhesion and NADPH oxidase activity and identified signaling molecules linking adhesion, reactive oxygen species (ROS) production, and cell death. However, the proximal signaling cascade activated directly by Siglec-8 engagement has remained elusive. Most members of the Siglec family possess similar cytoplasmic signaling motifs and recruit the protein tyrosine phosphatases SHP-1/2, consistent with ITIM-mediated signaling, to dampen cellular activation. However, the dependence of Siglec-8 function in eosinophils on these phosphatases has not been studied. Using Siglec-8 antibody engagement and pharmacological inhibition in conjunction with assays to measure cell-surface upregulation and conformational activation of CD11b integrin, ROS production, and cell death, we sought to identify molecules involved in Siglec-8 signaling and determine the stage of the process in which each molecule plays a role. We demonstrate here that the enzymatic activities of Src family kinases (SFKs), Syk, SHIP1, PAK1, MEK1, ERK1/2, PLC, PKC, acid sphingomyelinase/ceramidase, and Btk are all necessary for Siglec-8-induced eosinophil cell death, with no apparent role for SHP-1/2, SHIP2, or c-Raf. While most of these signaling molecules are necessary for Siglec-8-induced upregulation of CD11b integrin at the eosinophil cell surface, Btk is phosphorylated and activated later in the signaling cascade and is instead necessary for CD11b activation. In contrast, SFKs and ERK1/2 are phosphorylated far earlier in the process, consistent with their role in augmenting cell-surface levels of CD11b. In addition, pretreatment of eosinophils with latrunculin B or jasplakinolide revealed that actin filament disassembly is necessary and sufficient for surface CD11b integrin upregulation and that actin polymerization is necessary for downstream ROS production. These results show that Siglec-8 signals through an unanticipated set of signaling molecules in IL-5-primed eosinophils to induce cell death and challenges the expectation that ITIM-bearing Siglecs signal through inhibitory pathways involving protein tyrosine phosphatases to achieve their downstream functions.
Collapse
Affiliation(s)
| | | | | | - Jeremy A. O’Sullivan
- Division of Allergy and Immunology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, United States
| |
Collapse
|
50
|
Feng J, Zhang X, Shan C, Xia J, Zhang Z, Shi H, Leng K, Wu Y, Ji C, Zhong T. Src family kinases involved in the differentiation of human preadipocytes. Mol Cell Endocrinol 2021; 533:111323. [PMID: 34000351 DOI: 10.1016/j.mce.2021.111323] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Revised: 04/14/2021] [Accepted: 05/10/2021] [Indexed: 10/21/2022]
Abstract
BACKGROUND Obesity is characterized by the excess accumulation of white adipose tissue (WAT). Src family kinases (SFKs) are non-receptor tyrosine kinases consisting of eight members (SRC, FYN, YES1, HCK, LCK, LYN, FGR and BLK) that have been studied extensively in mammalian cells. Although individual members in murine cells provide some clues that are associated with the regulation of adipogenesis, the specific role of this family in adipocyte differentiation has rarely been assessed, especially in human adipocytes. METHODS Herein, we first explored the expression profiles of SFKs during human preadipocyte differentiation. Then, we used the pyrazolo-pyrimidinyl-amine compound PP1, a potent SFK inhibitor, to evaluate the function of SFKs during adipocyte differentiation. Furthermore, we adopted a loss-of-function strategy with siRNAs to determine the role of FGR in adipocyte differentiation. RESULTS Here, we found that SRC, FYN, YES1, LYN and FGR were expressed in human preadipocytes and induced after the initiation of differentiation. Furthermore, the SFK inhibitor PP1 suppressed adipocyte differentiation. We also found that PP1 significantly suppressed the SFK activity in preadipocytes and decreased the expression of adipogenic genes in early and late differentiation. Given that FGR exhibited the most expression enhancement in mature adipocytes, we focused on FGR and found that its knockdown reduced lipid accumulation and adipogenic gene expression. CONCLUSIONS Collectively, these findings suggest that SFKs, especially FGR, are involved in the differentiation of human preadipocytes. Our results lay a foundation for further understanding the role of SFKs in adipocyte differentiation and provide new clues for anti-obesity therapies.
Collapse
Affiliation(s)
- Jie Feng
- Nanjing Maternal and Child Health Medical Institute, Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, Jiangsu 210004, China; Jiangsu Health Development Research Center, Nanjing, Jiangsu 210036, China
| | - Xiaoxiao Zhang
- Nanjing Maternal and Child Health Medical Institute, Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, Jiangsu 210004, China
| | - Chunjian Shan
- Nanjing Maternal and Child Health Medical Institute, Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, Jiangsu 210004, China
| | - Jiaai Xia
- Nanjing Maternal and Child Health Medical Institute, Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, Jiangsu 210004, China
| | - Zhenxing Zhang
- Department of Pediatrics, The First Affiliated Hospital, Nanjing Medical University, No. 300 Guang Zhou Road, Nanjing, Jiangsu 210029, China
| | - Hui Shi
- Jiangsu Health Development Research Center, Nanjing, Jiangsu 210036, China
| | - Kai Leng
- Department of Information, The First Affiliated Hospital, Nanjing Medical University, No. 300 Guang Zhou Road, Nanjing, Jiangsu 210029, China; Department of Medical Informatics, School of Biomedical Engineering and Informatics, Nanjing Medical University, Nanjing, Jiangsu 211166, China
| | - Yangyang Wu
- Nanjing Maternal and Child Health Medical Institute, Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, Jiangsu 210004, China
| | - Chenbo Ji
- Nanjing Maternal and Child Health Medical Institute, Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, Jiangsu 210004, China.
| | - Tianying Zhong
- Nanjing Maternal and Child Health Medical Institute, Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, Jiangsu 210004, China.
| |
Collapse
|