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Pehkonen H, Filippou A, Väänänen J, Lindfors I, Vänttinen M, Ianevski P, Mäkelä A, Munne P, Klefström J, Toppila‐Salmi S, Grénman R, Hagström J, Mäkitie AA, Karhemo P, Monni O. Liprin-α1 contributes to oncogenic MAPK signaling by counteracting ERK activity. Mol Oncol 2024; 18:662-676. [PMID: 38264964 PMCID: PMC10920090 DOI: 10.1002/1878-0261.13593] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Revised: 12/15/2023] [Accepted: 01/15/2024] [Indexed: 01/25/2024] Open
Abstract
PTPRF interacting protein alpha 1 (PPFIA1) encodes for liprin-α1, a member of the leukocyte common antigen-related protein tyrosine phosphatase (LAR-RPTPs)-interacting protein family. Liprin-α1 localizes to adhesive and invasive structures in the periphery of cancer cells, where it modulates migration and invasion in head and neck squamous cell carcinoma (HNSCC) and breast cancer. To study the possible role of liprin-α1 in anticancer drug responses, we screened a library of oncology compounds in cell lines with high endogenous PPFIA1 expression. The compounds with the highest differential responses between high PPFIA1-expressing and silenced cells across cell lines were inhibitors targeting mitogen-activated protein kinase kinase (MEK)/extracellular signal-regulated kinases (ERK) signaling. KRAS proto-oncogene, GTPase (KRAS)-mutated MDA-MB-231 cells were more resistant to trametinib upon PPFIA1 knockdown compared with control cells. In contrast, liprin-α1-depleted HNSCC cells with low RAS activity showed a context-dependent response to MEK/ERK inhibitors. Importantly, we showed that liprin-α1 depletion leads to increased p-ERK1/2 levels in all our studied cell lines independent of KRAS mutational status, suggesting a role of liprin-α1 in the regulation of MAPK oncogenic signaling. Furthermore, liprin-α1 depletion led to more pronounced redistribution of RAS proteins to the cell membrane. Our data suggest that liprin-α1 is an important contributor to oncogenic RAS/MAPK signaling, and the status of liprin-α1 may assist in predicting drug responses in cancer cells in a context-dependent manner.
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Affiliation(s)
- Henna Pehkonen
- Applied Tumor Genomics Research Program, Faculty of MedicineUniversity of HelsinkiFinland
| | - Artemis Filippou
- Applied Tumor Genomics Research Program, Faculty of MedicineUniversity of HelsinkiFinland
| | - Juho Väänänen
- Applied Tumor Genomics Research Program, Faculty of MedicineUniversity of HelsinkiFinland
| | - Iida Lindfors
- Applied Tumor Genomics Research Program, Faculty of MedicineUniversity of HelsinkiFinland
| | - Mira Vänttinen
- Applied Tumor Genomics Research Program, Faculty of MedicineUniversity of HelsinkiFinland
| | - Philipp Ianevski
- Institute for Molecular Medicine Finland (FIMM)University of HelsinkiFinland
| | - Anne Mäkelä
- Applied Tumor Genomics Research Program, Faculty of MedicineUniversity of HelsinkiFinland
| | - Pauliina Munne
- Finnish Cancer Institute, FICAN South Helsinki University Hospital & Translational Cancer Medicine, Medical FacultyUniversity of HelsinkiFinland
| | - Juha Klefström
- Finnish Cancer Institute, FICAN South Helsinki University Hospital & Translational Cancer Medicine, Medical FacultyUniversity of HelsinkiFinland
- iCAN Digital Precision Cancer Medicine FlagshipHelsinkiFinland
| | - Sanna Toppila‐Salmi
- Skin and Allergy HospitalHelsinki University Hospital and University of HelsinkiFinland
- Department of Otorhinolaryngology, Kuopio University Hospital and School of Medicine, Institute of Clinical MedicineUniversity of Eastern FinlandKuopioFinland
| | - Reidar Grénman
- Department of Otorhinolaryngology‐Head and Neck SurgeryUniversity of Turku and Turku University HospitalFinland
| | - Jaana Hagström
- Department of PathologyUniversity of Helsinki and Helsinki University HospitalFinland
- Institute of DentistryUniversity of TurkuFinland
| | - Antti A. Mäkitie
- iCAN Digital Precision Cancer Medicine FlagshipHelsinkiFinland
- Department of Otorhinolaryngology‐Head and Neck Surgery, Research Program in Systems OncologyUniversity of Helsinki and Helsinki University HospitalFinland
| | - Piia‐Riitta Karhemo
- Applied Tumor Genomics Research Program, Faculty of MedicineUniversity of HelsinkiFinland
- iCAN Digital Precision Cancer Medicine FlagshipHelsinkiFinland
| | - Outi Monni
- Applied Tumor Genomics Research Program, Faculty of MedicineUniversity of HelsinkiFinland
- iCAN Digital Precision Cancer Medicine FlagshipHelsinkiFinland
- Department of Oncology, Faculty of MedicineUniversity of HelsinkiFinland
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Zampouni K, Filippou A, Papadimitriou K, Katsanidis E. Evaluation of bigel systems as potential substitutes to partially replace pork backfat in semi-dry sausages. Meat Sci 2024; 208:109392. [PMID: 37979346 DOI: 10.1016/j.meatsci.2023.109392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Revised: 11/07/2023] [Accepted: 11/10/2023] [Indexed: 11/20/2023]
Abstract
Bigels prepared with olive oil oleogels admixed with κ-carrageenan or κ-carrageenan and gelatin hydrogels (BG1 and BG2, respectively) were characterized with respect to microstructure and textural properties and were used as pork backfat alternatives in semi-dry sausages. Stable oleogel-in-hydrogel type bigels were formed, with BG2 having higher hardness values. Control sausages (CF) were formulated with 20% pork backfat and sausage treatments B1F and B2F had 50% of the pork backfat substituted by BG1 and BG2 bigels, respectively. Moisture, water activity, texture, microbial counts, sensorial and nutritional attributes of the resulting sausages were assessed during fermentation and after pasteurization and storage. Substituted sausages had increased weight loss, moisture, and water activity. Color evaluation revealed that the treatments with bigels exhibited the same trend in color formation and no differences were recorded in L* and a* values of the sausages. Total viable counts and lactic acid bacteria populations were not affected by the addition of bigel systems. Regarding the texture parameters, B2F semi-dry sausages exhibited similar values of hardness and cohesiveness to CF. Sausages formulated with bigels exhibited a reduction in energy (20%), fat (27%), saturated fatty acids (30%) and cholesterol (∼6%) content. B2F sausages had similar liking scores with CF, and they did not show any undesirable sensory attributes. The results demonstrate that bigels are a promising fat alternative to manufacture semi-dry meat products with lower fat content and a better nutritional profile.
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Affiliation(s)
- K Zampouni
- Department of Food Science and Technology, School of Agriculture, Faculty of Agriculture, Forestry and Natural Environment, Aristotle University of Thessaloniki, 54124, Greece
| | - A Filippou
- Department of Food Science and Technology, School of Agriculture, Faculty of Agriculture, Forestry and Natural Environment, Aristotle University of Thessaloniki, 54124, Greece
| | - K Papadimitriou
- Department of Food Science and Technology, School of Agriculture, Faculty of Agriculture, Forestry and Natural Environment, Aristotle University of Thessaloniki, 54124, Greece
| | - E Katsanidis
- Department of Food Science and Technology, School of Agriculture, Faculty of Agriculture, Forestry and Natural Environment, Aristotle University of Thessaloniki, 54124, Greece.
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Filippou A, Pehkonen H, Karhemo PR, Väänänen J, Nieminen AI, Klefström J, Grénman R, Mäkitie AA, Joensuu H, Monni O. ANO1 Expression Orchestrates p27Kip1/MCL1-Mediated Signaling in Head and Neck Squamous Cell Carcinoma. Cancers (Basel) 2021; 13:cancers13051170. [PMID: 33803266 PMCID: PMC7967175 DOI: 10.3390/cancers13051170] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Revised: 03/01/2021] [Accepted: 03/05/2021] [Indexed: 12/24/2022] Open
Abstract
Simple Summary Our aim was to elucidate the molecular mechanisms of how ANO1 contributes to oncogenic processes in squamous cell carcinoma of the head and neck (HNSCC). We explored transcriptional programs influenced by ANO1 knockdown in patient-derived UT-SCC cell lines with 11q13 amplification and ANO1 overexpression. ANO1 depletion led to downregulation of broad pro-survival BCL2 family protein members, including MCL1, and simultaneously induced upregulation of the cell cycle inhibitor p27Kip1 and its redistribution from the cytoplasm into the nucleus in the studied HNSCC cells. Gene set enrichment analysis highlighted pathways associated with perturbed cell cycle and apoptosis in the ANO1-depleted samples. Silencing of ANO1 and application of an ANO1-targeting small-molecule inhibitor led to ANO1 degradation and reduction of cell viability. These findings suggest that ANO1 has drug target potential that deserves further evaluation in preclinical in vivo models. Abstract Head and neck squamous cell carcinoma (HNSCC) is a heterogeneous group of tumors that derive from the mucosal epithelium of the upper aerodigestive tract and present high mortality rate. Lack of efficient targeted-therapies and biomarkers towards patients’ stratification are caveats in the disease treatment. Anoctamin 1 (ANO1) gene is amplified in 30% of HNSCC cases. Evidence suggests involvement of ANO1 in proliferation, migration, and evasion of apoptosis; however, the exact mechanisms remain elusive. Aim of this study was to unravel the ANO1-dependent transcriptional programs and expand the existing knowledge of ANO1 contribution to oncogenesis and drug response in HNSCC. We cultured two HNSCC cell lines established from primary tumors harboring amplification and high expression of ANO1 in three-dimensional collagen. Differential expression analysis of ANO1-depleted HNSCC cells demonstrated downregulation of MCL1 and simultaneous upregulation of p27Kip1 expression. Suppressing ANO1 expression led to redistribution of p27Kip1 from the cytoplasm to the nucleus and associated with a cell cycle arrested phenotype. ANO1 silencing or pharmacological inhibition resulted in reduction of cell viability and ANO1 protein levels, as well as suppression of pro-survival BCL2 family proteins. Collectively, these data provide insights of ANO1 involvement in HNSCC carcinogenesis and support the rationale that ANO1 is an actionable drug target.
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Affiliation(s)
- Artemis Filippou
- Applied Tumor Genomics Research Program, Faculty of Medicine, University of Helsinki, 00014 Helsinki, Finland; (A.F.); (H.P.); (P.-R.K.); (J.V.)
| | - Henna Pehkonen
- Applied Tumor Genomics Research Program, Faculty of Medicine, University of Helsinki, 00014 Helsinki, Finland; (A.F.); (H.P.); (P.-R.K.); (J.V.)
| | - Piia-Riitta Karhemo
- Applied Tumor Genomics Research Program, Faculty of Medicine, University of Helsinki, 00014 Helsinki, Finland; (A.F.); (H.P.); (P.-R.K.); (J.V.)
| | - Juho Väänänen
- Applied Tumor Genomics Research Program, Faculty of Medicine, University of Helsinki, 00014 Helsinki, Finland; (A.F.); (H.P.); (P.-R.K.); (J.V.)
| | - Anni I. Nieminen
- Translational Cancer Medicine Research Program and Medicum, Faculty of Medicine, University of Helsinki, 00014 Helsinki, Finland;
| | - Juha Klefström
- Finnish Cancer Institute, FICAN South Helsinki University Hospital, Faculty of Medicine, University of Helsinki, 00014 Helsinki, Finland;
| | - Reidar Grénman
- Department of Otorhinolaryngology-Head and Neck Surgery, University of Turku and Turku University Hospital, 20520 Turku, Finland;
| | - Antti A. Mäkitie
- Department of Otorhinolaryngology-Head and Neck Surgery, University of Helsinki and Helsinki University Hospital, 00130 Helsinki, Finland;
- Research Program in Systems Oncology, Faculty of Medicine, University of Helsinki, 00014 Helsinki, Finland
| | - Heikki Joensuu
- Department of Oncology, University of Helsinki and Helsinki University Hospital, 00290 Helsinki, Finland;
| | - Outi Monni
- Applied Tumor Genomics Research Program, Faculty of Medicine, University of Helsinki, 00014 Helsinki, Finland; (A.F.); (H.P.); (P.-R.K.); (J.V.)
- Department of Oncology, Clinicum, Faculty of Medicine, University of Helsinki, 00014 Helsinki, Finland
- Correspondence: ; Tel.: +358-407639302
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Katsarou-Katsare A, Filippou A, Theoharides TC. Effect of Stress and Other Psychological Factors on the Pathophysiology and Treatment of Dermatoses. Int J Immunopathol Pharmacol 2018. [DOI: 10.1177/205873929901200102] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Affiliation(s)
- A. Katsarou-Katsare
- Department of Pharmacology and Experimental Therapeutics, Tufts University, Boston, Mass., U.S.A
| | - A. Filippou
- Department of Dermatology “rA. Syggros” Hospital, University of Athens, Athens Greece
| | - T. C. Theoharides
- Department of Dermatology “rA. Syggros” Hospital, University of Athens, Athens Greece
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Sousos N, Sfyridou S, Adamidou D, Vyzantiadis TA, Karadosidou M, Filippou A, Karafoulidou T, Chouridi M, Theodoridou S. Non-physician health-care workers and voluntary blood donation: an ambiguous relationship. Transfus Med 2017; 28:216-223. [DOI: 10.1111/tme.12445] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2016] [Revised: 05/17/2017] [Accepted: 06/24/2017] [Indexed: 11/29/2022]
Affiliation(s)
- N. Sousos
- Blood Bank Center; Ippokrateio General Hospital of Thessaloniki; Thessaloniki Greece
| | - S. Sfyridou
- Blood Bank Center; Ippokrateio General Hospital of Thessaloniki; Thessaloniki Greece
| | - D. Adamidou
- Blood Bank Center; Ippokrateio General Hospital of Thessaloniki; Thessaloniki Greece
| | - T.-A. Vyzantiadis
- Department of Microbiology; Aristotle University of Thessaloniki; Thessaloniki Greece
| | - M. Karadosidou
- Blood Bank Center; Ippokrateio General Hospital of Thessaloniki; Thessaloniki Greece
| | - A. Filippou
- Blood Bank Center; Ippokrateio General Hospital of Thessaloniki; Thessaloniki Greece
| | - T. Karafoulidou
- Blood Bank Center; Ippokrateio General Hospital of Thessaloniki; Thessaloniki Greece
| | - M. Chouridi
- Blood Bank Center; Ippokrateio General Hospital of Thessaloniki; Thessaloniki Greece
| | - S. Theodoridou
- Blood Bank Center; Ippokrateio General Hospital of Thessaloniki; Thessaloniki Greece
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Thammasri K, Rauhamäki S, Wang L, Filippou A, Kivovich V, Marjomäki V, Naides SJ, Gilbert L. Human parvovirus B19 induced apoptotic bodies contain altered self-antigens that are phagocytosed by antigen presenting cells. PLoS One 2013; 8:e67179. [PMID: 23776709 PMCID: PMC3680405 DOI: 10.1371/journal.pone.0067179] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2013] [Accepted: 05/15/2013] [Indexed: 12/03/2022] Open
Abstract
Human parvovirus B19 (B19V) from the erythrovirus genus is known to be a pathogenic virus in humans. Prevalence of B19V infection has been reported worldwide in all seasons, with a high incidence in the spring. B19V is responsible for erythema infectiosum (fifth disease) commonly seen in children. Its other clinical presentations include arthralgia, arthritis, transient aplastic crisis, chronic anemia, congenital anemia, and hydrops fetalis. In addition, B19V infection has been reported to trigger autoimmune diseases such as systemic lupus erythematosus and rheumatoid arthritis. However, the mechanisms of B19V participation in autoimmunity are not fully understood. B19V induced chronic disease and persistent infection suggests B19V can serve as a model for viral host interactions and the role of viruses in the pathogenesis of autoimmune diseases. Here we investigate the involvement of B19V in the breakdown of immune tolerance. Previously, we demonstrated that the non-structural protein 1 (NS 1) of B19V induces apoptosis in non-permissive cells lines and that this protein can cleave host DNA as well as form NS1-DNA adducts. Here we provide evidence that through programmed cell death, apoptotic bodies (ApoBods) are generated by B19V NS1 expression in a non-permissive cell line. Characterization of purified ApoBods identified potential self-antigens within them. In particular, signature self-antigens such as Smith, ApoH, DNA, histone H4 and phosphatidylserine associated with autoimmunity were present in these ApoBods. In addition, when purified ApoBods were introduced to differentiated macrophages, recognition, engulfment and uptake occurred. This suggests that B19V can produce a source of self-antigens for immune cell processing. The results support our hypothesis that B19V NS1-DNA adducts, and nucleosomal and lysosomal antigens present in ApoBods created in non-permissive cell lines, are a source of self-antigens.
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Affiliation(s)
- Kanoktip Thammasri
- Department of Biological and Environmental Sciences and Nanoscience Center, University of Jyväskylä, Jyväskylä, Finland
| | - Sanna Rauhamäki
- Department of Biological and Environmental Sciences and Nanoscience Center, University of Jyväskylä, Jyväskylä, Finland
| | - Liping Wang
- Department of Biological and Environmental Sciences and Nanoscience Center, University of Jyväskylä, Jyväskylä, Finland
| | - Artemis Filippou
- Department of Biological and Environmental Sciences and Nanoscience Center, University of Jyväskylä, Jyväskylä, Finland
| | - Violetta Kivovich
- Pennsylvania State College of Medicine/Milton S. Hershey Medical Center, Hershey, Pennsylvania, United States of America
| | - Varpu Marjomäki
- Department of Biological and Environmental Sciences and Nanoscience Center, University of Jyväskylä, Jyväskylä, Finland
| | - Stanley J. Naides
- Quest Diagnostics Nichols Institute, San Juan Capistrano, California, United States of America
| | - Leona Gilbert
- Department of Biological and Environmental Sciences and Nanoscience Center, University of Jyväskylä, Jyväskylä, Finland
- * E-mail:
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Green M, Filippou A, Sant G, Theoharides TC. Expression of intercellular adhesion molecules in the bladder of patients with interstitial cystitis. Urology 2004; 63:688-93. [PMID: 15072882 DOI: 10.1016/j.urology.2003.11.022] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2002] [Accepted: 11/13/2003] [Indexed: 10/26/2022]
Abstract
OBJECTIVES To study the presence of intercellular adhesion molecule-1 (ICAM-1), P-selectin, and E-selectin, as well as the cytoskeletal components talin and vinculin that bind to cellular adhesion molecules (CAMs), in bladder biopsies from patients with interstitial cystitis (IC) and controls. IC is a sterile, bladder disorder characterized by urinary frequency and pelvic floor pain. The pathologic bladder findings include defective urothelium, activated mast cells, and variable inflammation. Mast cells can induce the expression of CAMs necessary for initiation of inflammation. METHODS Fresh frozen biopsies were analyzed immunocytochemically from 2 female normal bladders, 10 female IC bladders, 1 clear margin of transitional cell carcinoma of female bladder, 1 normal foreskin, 1 transitional cell carcinoma of foreskin, and 1 inflamed male finger. RESULTS Of the 10 IC samples, 9 were positive for ICAM-1, 6 for P-selectin, 6 for vinculin, 5 for talin, and 4 for E-selectin, all exclusively perivascular. Both normal bladders were negative for ICAM-1 and P-selectin and faintly positive for E-selectin, and one was weakly positive for talin and vinculin; the normal foreskin was negative. The "control" samples from the transitional cell carcinoma of the bladder and foreskin, as well as the inflamed finger skin, were positive only for ICAM-1. An increased number of activated mast cells associated with ICAM-1 was noted in IC. CONCLUSIONS These results showed that ICAM-1 is expressed in IC, with variable expression of the other markers studied, supporting the different degrees of bladder inflammation noted in patients with IC.
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Affiliation(s)
- M Green
- Department of Pharmacology and Experimental Therapeutics, Tufts University School of Medicine, Tufts-New England Medical Center, Boston, Massachusetts 02111, USA
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Katsarou-Katsari A, Filippou A, Theoharides TC. Effect of stress and other psychological factors on the pathophysiology and treatment of dermatoses. Int J Immunopathol Pharmacol 1999; 12:7-11. [PMID: 12793957] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/02/2023] Open
Abstract
Psychological factors precipitate or increase the morbidity of many dermatoses. There is increasing evidence that stress influences disease processes and contributes to the inflammation through vasoactive neuropeptides, lymphokines or other chemical mediators. Experimental results indicate that the endocrine, nervous and immune systems can no longer be considered autonomous, but involve complex bidirectional interactions between them. Dermatology holds a distinct position in psychosomatic medicine because it deals with an organ that can be readily seen and touched. The psychological states of anxiety, fear, shame, pleasure, and sexual excitation are visibly indicated by blushing, hair-rising, growing pale, itching or hyperhidrosis. The skin, therefore, clearly responds to many psychologic and stressful stimuli. As the skin is exposed to view, dermatoses elicit reactions from the patients' environment and the easy accessibility of the skin allows patients to interact directly with their lesions. In addition to the classic stress response involving increased levels of neuroendocrine hormones and autonomic neurotransmitters, stress also affects the immune system. Stress has been reported to cause decreased natural killer cell cytotoxicity, depressed mitogenic responses in lymphocytes, increased IgA levels, enhanced neutrophil phagocytosis and activation of interferon synthesis in lymphocytes. Psychodermatological syndromes can be classified according to the type and degree of causal relationship between the psychological etiology and the dermatoses. There is some overlap between the groups, but there is a satisfactory classification under three major headings that suggests an approach to treatment.
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Affiliation(s)
- A Katsarou-Katsari
- Department of Dermatology, A. Syggros Hospital, University of Athens, Greece
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