301
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Affiliation(s)
- Farooq A Shiekh
- Avalon University School of Medicine, Curaçao, Netherlands Antilles
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302
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Cheng CF, Ku HC, Lin H. Functional alpha 1 protease inhibitor produced by a human hepatoma cell line. ACTA ACUST UNITED AC 1982; 19:ijms19113447. [PMID: 30400212 PMCID: PMC6274980 DOI: 10.3390/ijms19113447] [Citation(s) in RCA: 242] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Revised: 10/23/2018] [Accepted: 10/30/2018] [Indexed: 12/13/2022]
Abstract
Alpha 1 protease inhibitor antigen was identified in the culture medium of the human ascites hepatoma cell line SK-HEP-1. Trypsin inhibitory activity and alpha 1 Pl antigen accumulated in serum-free medium concomitantly over a period of several days. Radioactive alpha 1 Pl antigen was detected in conditioned medium from cultures supplemented with 35S-L-methionine, indicating a synthesis and release of the protein. Alpha 1 Pl antigen in conditioned medium appeared to be antigenically identical to that in human plasma, and the newly synthesized (radiolabeled) antigen co-migrated with plasma, alpha 1 Pl after immunoelectrophoresis or SDS-polyacrylamide gel electrophoresis. Moreover, evidence is presented that the synthesized inhibitor exhibits functional activity, since the 35S-labeled alpha 1 Pl in conditioned medium complexes with trypsin. We conclude that SK-HEP-1 cells in culture produce functionally active alpha 1 Pl which may be identical to that in plasma.
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Affiliation(s)
- Ching-Feng Cheng
- Department of Pediatrics, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City 23142, Taiwan.
- Institute of Biomedical Sciences, Academia Sinica, Taipei 11529, Taiwan.
- Department of Pediatrics, Tzu Chi University, Hualien 97004, Taiwan.
| | - Hui-Chen Ku
- Department of Pediatrics, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City 23142, Taiwan.
| | - Heng Lin
- Institute of Pharmacology, Taipei Medical University, 250 Wu-Hsing Street, Taipei 11031, Taiwan.
- Department of Physiology, School of Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan.
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303
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Carafa V, Russo R, Della Torre L, Cuomo F, Dell'Aversana C, Sarno F, Sgueglia G, Di Donato M, Rotili D, Mai A, Nebbioso A, Cobellis G, Chambery A, Altucci L. Different facets of sex anxiety. Front Oncol 1981; 10:820. [PMID: 32528892 PMCID: PMC7255067 DOI: 10.3389/fonc.2020.00820] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Accepted: 04/27/2020] [Indexed: 12/12/2022] Open
Abstract
The involvement of sirtuins (SIRTs) in modulating metabolic and stress response pathways is attracting growing scientific interest. Some SIRT family members are located in mitochondria, dynamic organelles that perform several crucial functions essential for eukaryotic life. Mitochondrial dysfunction has emerged as having a key role in a number of human diseases, including cancer. Here, we investigated mitochondrial damage resulting from treatment with a recently characterized pan-SIRT inhibitor, MC2494. MC2494 was able to block mitochondrial biogenesis and function in terms of ATP synthesis and energy metabolism, suggesting that it might orchestrate cell response to metabolic stress and thereby interfere with cancer promotion and progression. Targeting mitochondrial function could thus be considered a potential anticancer strategy for use in clinical therapy.
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Affiliation(s)
- Vincenzo Carafa
- Dipartimento di Medicina di Precisione, Università degli Studi della Campania “Luigi Vanvitelli”, Naples, Italy
| | - Rosita Russo
- Dipartimento di Scienze e Tecnologie Ambientali Biologiche e Farmaceutiche, Università degli Studi della Campania “Luigi Vanvitelli”, Caserta, Italy
| | - Laura Della Torre
- Dipartimento di Medicina di Precisione, Università degli Studi della Campania “Luigi Vanvitelli”, Naples, Italy
| | - Francesca Cuomo
- Dipartimento di Medicina di Precisione, Università degli Studi della Campania “Luigi Vanvitelli”, Naples, Italy
| | - Carmela Dell'Aversana
- Dipartimento di Medicina di Precisione, Università degli Studi della Campania “Luigi Vanvitelli”, Naples, Italy
- Institute Experimental Endocrinology and Oncology “Gaetano Salvatore” (IEOS)- National Research Council (CNR), Naples, Italy
| | - Federica Sarno
- Dipartimento di Medicina di Precisione, Università degli Studi della Campania “Luigi Vanvitelli”, Naples, Italy
| | - Giulia Sgueglia
- Dipartimento di Medicina di Precisione, Università degli Studi della Campania “Luigi Vanvitelli”, Naples, Italy
| | - Marzia Di Donato
- Dipartimento di Medicina di Precisione, Università degli Studi della Campania “Luigi Vanvitelli”, Naples, Italy
| | - Dante Rotili
- Dipartimento di Chimica e Tecnologie del Farmaco, “Sapienza” Università di Roma, Rome, Italy
| | - Antonello Mai
- Dipartimento di Chimica e Tecnologie del Farmaco, “Sapienza” Università di Roma, Rome, Italy
| | - Angela Nebbioso
- Dipartimento di Medicina di Precisione, Università degli Studi della Campania “Luigi Vanvitelli”, Naples, Italy
| | - Gilda Cobellis
- Dipartimento di Medicina di Precisione, Università degli Studi della Campania “Luigi Vanvitelli”, Naples, Italy
| | - Angela Chambery
- Dipartimento di Scienze e Tecnologie Ambientali Biologiche e Farmaceutiche, Università degli Studi della Campania “Luigi Vanvitelli”, Caserta, Italy
| | - Lucia Altucci
- Dipartimento di Medicina di Precisione, Università degli Studi della Campania “Luigi Vanvitelli”, Naples, Italy
- *Correspondence: Lucia Altucci
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