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Sozer Karadagli S, Kaftan G, Cansever I, Armagan G, Sogut O. Tattoo inks: evaluation of cellular responses and analysis of some trace metals. Biometals 2024; 37:495-505. [PMID: 38038794 DOI: 10.1007/s10534-023-00564-z] [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: 08/11/2023] [Accepted: 11/12/2023] [Indexed: 12/02/2023]
Abstract
After tattoo application, inks remain in the skin, mostly in the dermal layer, and manufacturers use inks that have not been adequately evaluated for safety in tattoo production. In this study, the metal contents (Cd, Hg, Pb, and Cr) of tattoo inks available in the Turkish market were determined and the relationship between cell viability and inflammatory response of the detected metal levels was investigated. Nine tattoo inks (3 colors) from 3 different brands abbreviated as E, I, and W were examined. ICP-MS was used for element analysis. The viability of human keratinocyte cells was determined by the WST-1 assay following ink exposures at various dilutions. IL-18 levels were measured in cell culture supernatant by ELISA method following ink or metal (Cd, Cr, Hg, and Pb) exposures. The concentrations of trace elements were found in inks as follows: Cd, 0.0641-1.3857; Hg, 0.0204-0.2675; Pb, 0.8527-6.5981; Cr, 0.1731-45.3962 µg mL-1. It was observed that the levels of Pb and especially Cr in the samples exceeded the limit values. Tattoo inks reduced the cell viability in a dose- and color-dependent manner. IL-18 release was significantly increased in all groups except Cr and black ink of brand I treated cells (p < 0.05). Our results show that the metal contents of tattoo inks exceed Council of Europe Resolution values in some samples and some inks induce immune system activation (IL-18 secretion) and cytotoxic effects. It is thought that these findings may contribute to the toxic/adverse effects of tattoo inks commonly used.
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Affiliation(s)
- Sumru Sozer Karadagli
- Faculty of Pharmacy, Department of Pharmaceutical Toxicology, Ege University, Izmir, Turkey.
| | - Gizem Kaftan
- Faculty of Pharmacy, Department of Biochemistry, Afyonkarahisar Health Sciences University, Afyonkarahisar, Turkey
| | - Islam Cansever
- Central Research Laboratories, Katip Celebi University, Izmir, Turkey
| | - Guliz Armagan
- Faculty of Pharmacy, Department of Biochemistry, Ege University, Izmir, Turkey
| | - Ozlem Sogut
- Faculty of Pharmacy, Department of Analytical Chemistry, Ege University, Izmir, Turkey
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Kaftan G, Erdoğan MA, El-Shazly M, Lu MC, Shih SP, Lin HY, Saso L, Armagan G. Heteronemin promotes iron-dependent cell death in pancreatic cancer. Naunyn Schmiedebergs Arch Pharmacol 2024; 397:1865-1874. [PMID: 37773525 DOI: 10.1007/s00210-023-02736-7] [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] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Accepted: 09/20/2023] [Indexed: 10/01/2023]
Abstract
The marine environment has been recognized as a prolific source of potent bioactive compounds with significant anticancer properties. Among these, heteronemin, a sesterterpenoid-type natural product, has shown promise. This study delves into the potential of heteronemin as a ferroptotic agent against pancreatic cancer, using the Panc-1 cell line as a model. The cytotoxic potential of heteronemin was assessed using cell viability assays. Furthermore, its effect on lipid peroxidation was determined spectrophotometrically, while the changes it induced in autophagy- and ferritin-related protein expressions were evaluated using immunoblotting techniques. Various cell-based tests were employed to scrutinize its anticancer efficacy. Heteronemin displayed a notable cytotoxic effect, reducing cell viability by 50% at a concentration of 55 nM. This cytotoxicity was discernibly linked to ferroptosis, as evidenced by the reversal of cell death upon treatment with the ferroptosis inhibitor, ferrostatin-1. Heteronemin treatment led to a marked increase in ferroptosis markers and malondialdehyde (MDA) levels. Conversely, the expression of glutathione peroxidase-4 (GPX4), a key anti-ferroptotic protein, was suppressed. Furthermore, significant modulations in the expression of ferritinophagy- and iron-related proteins such as Atg5, Atg7, FTL, STEAP3, and DMT-1 were evident post-treatment (p < 0.05). This study underscores the potential of heteronemin as a ferroptosis inducer in pancreatic cancer cells. Given its robust cytotoxicity, heteronemin emerges as a promising lead compound for further exploration in cancer therapeutics.
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Affiliation(s)
- Gizem Kaftan
- Doctoral Degree Program in Biochemistry, Graduate School of Health Sciences, Ege University, 35100, Bornova, Izmir, Turkey
- Department of Biochemistry, Faculty of Pharmacy, Afyonkarahisar Health Sciences University, 03100, Afyonkarahisar, Turkey
| | - Mümin Alper Erdoğan
- Department of Physiology, Faculty of Medicine, Izmir Katip Çelebi University, Çiğli, Izmir, Turkey
| | - Mohamed El-Shazly
- Department of Pharmacognosy, Faculty of Pharmacy, Ain-Shams University, Organization of African Unity Street, Abassia, 11566, Cairo, Egypt
- Department of Pharmaceutical Biology, Faculty of Pharmacy and Biotechnology, German University in Cairo, Cairo, 11835, Egypt
| | - Mei-Chin Lu
- Graduate Institute of Marine Biology, National Dong Hwa University, Pingtung, 944, Taiwan
- National Museum of Marine Biology & Aquarium, Pingtung, 944, Taiwan
| | - Shou-Ping Shih
- Doctoral Degree Program in Marine Biotechnology, National Sun Yat-Sen University (NSYSU), 70 Lien-Hai Road, Kaohsiung, 80424, Taiwan.
- Doctoral Degree Program in Marine Biotechnology, Academia Sinica, 128 Academia Road, Section 2, Nankang, Taipei, 11529, Taiwan.
| | - Hung-Yu Lin
- School of Medicine, College of Medicine, I-SHOU University, Kaohsiung, Taiwan
- Division of Urology, Department of Surgery, E-Da Cancer & E-Da Hospital, Kaohsiung, 824, Taiwan
| | - Luciano Saso
- Department of Physiology and Pharmacology "Vittorio Erspamer", Sapienza University of Rome, P. Le Aldo Moro 5, 00185, Rome, Italy
| | - Güliz Armagan
- Department of Biochemistry, Faculty of Pharmacy, Ege University, 35100, Bornova, Izmir, Turkey.
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Şeren N, Dovinova I, Birim D, Kaftan G, Barancik M, Erdogan MA, Armagan G. Regulation of tight junction proteins and cell death by peroxisome proliferator-activated receptor γ agonist in brainstem of hypertensive rats. Naunyn Schmiedebergs Arch Pharmacol 2024; 397:411-421. [PMID: 37458776 DOI: 10.1007/s00210-023-02619-x] [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] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Accepted: 07/10/2023] [Indexed: 01/07/2024]
Abstract
The decrease in tight junction proteins and their adapter proteins in the hypertensive brain is remarkable. Here, we aimed to investigate tight junction proteins and peroxisome proliferator-activated receptor (PPARγ) activation as well as inflammation factors and cell death proteins in the brainstem of hypertension models, namely spontaneously hypertensive rats (SHR) and borderline hypertensive rats (BHR). At first, SHR and BHR groups were treated with PPARγ agonist, pioglitazone. Then, occludin, claudin-1, claudin-2, claudin-12, ZO-1, and NF-κB p65 gene expression levels; pIKKβ, NF-κB p65, TNF, IL-1β, caspase-3, caspase-9 levels, and PARP-1 cleavage were evaluated. Significantly lower pIKKβ, NF-κB p65, TNF, and IL-1β levels were measured in pioglitazone-treated SHR. Results from this study confirm higher occludin (1.35-fold), claudin-2 (7.45-fold), claudin-12 (1.12-fold), and NF-κB p65 subunit (4.76-fold) expressions in the BHR group when compared to the SHR group. Pioglitazone was found effective in terms of regulating gene expression in SHR. Pioglitazone significantly increased occludin (8.17-fold), claudin-2 (2.41-fold), and claudin-12 (1.85-fold) mRNA levels, which were accompanied by decreased cleaved caspase-3, caspase-9 levels, PARP-1 activation, and proinflammatory factor levels in SHR (p ˂ 0.05). Our work has led us to conclude that alterations in tight junction proteins, particularly occludin, and cell death parameters in the brainstem following PPARγ activation may contribute to neuroprotection in essential hypertension.
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Affiliation(s)
- Nazlıcan Şeren
- Master Program in Biochemistry, Graduate School of Health Sciences, Ege University, 35100, Bornova, Izmir, Turkey
| | - Ima Dovinova
- Centre of Experimental Medicine, Institute for Heart Research, Slovak Academy of Sciences, Dubravska Cesta 9, 84104, Bratislava, Slovakia
| | - Derviş Birim
- Department of Biochemistry, Faculty of Pharmacy, Ege University, 35100, Bornova, Izmir, Turkey
- Doctorate Program in Biochemistry, Graduate School of Health Sciences, Ege University, 35100, Bornova, Izmir, Turkey
| | - Gizem Kaftan
- Doctorate Program in Biochemistry, Graduate School of Health Sciences, Ege University, 35100, Bornova, Izmir, Turkey
- Department of Biochemistry, Faculty of Pharmacy, Afyonkarahisar Health Sciences University, 03100, Afyonkarahisar, Turkey
| | - Miroslav Barancik
- Centre of Experimental Medicine, Institute for Heart Research, Slovak Academy of Sciences, Dubravska Cesta 9, 84104, Bratislava, Slovakia
| | - Mumin Alper Erdogan
- Department of Physiology, Faculty of Medicine, Izmir Katip Celebi University, 35610, Izmir, Turkey
| | - Güliz Armagan
- Department of Biochemistry, Faculty of Pharmacy, Ege University, 35100, Bornova, Izmir, Turkey.
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Sozbilen MC, Ozturk M, Kaftan G, Dagci T, Ozyalcin H, Armagan G. Neuroprotective Effects of C-terminal Domain of Tetanus Toxin on Rat Brain Against Motorneuron Damages After Experimental Spinal Cord Injury. Spine (Phila Pa 1976) 2018; 43:E327-E333. [PMID: 28767631 DOI: 10.1097/brs.0000000000002357] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
STUDY DESIGN Experimental animal study investigating the efficacy of C-terminal domain of tetanus toxin application as neuroprotective effects on rat brain in a model of spinal cord injury (SCI). OBJECTIVE The aim of the present study was to investigate the possible role of C-terminal domain of tetanus toxin (Hc-TeTx) on cell death mechanisms including apoptosis and autophagy following SCI. SUMMARY OF BACKGROUND DATA Traumatic SCI can lead to posttraumatic inflammation, oxidative stress, motor neuron apoptosis, necrosis, and autophagy of tissue. To promote and enhance recovery after SCI, recent development of devices and therapeutic interventions are needed. METHODS Twenty-eight adult rats were divided into four groups (n = 7 each) as follows: sham, trauma (SCI), SCI + Hc-TeTx, and SCI + methylprednisolone groups. The functional neurological deficits due to the SCI were assessed by behavioral analysis using the Basso, Beattie and Bresnahan (BBB) open-field locomotor test. The alterations in pro-/anti-apoptotic and autophagy related-protein levels were measured by Western blotting technique. RESULTS In this study, Hc-TeTx promotes locomotor recovery and motor neuron survival of SCI rats. Hc-TeTx also decreased expression of bax, bad, bak, cleaved caspase-3, Ask1, and autophagy-related proteins including Atg5 and LC3II in brain. Our study provides an evidence that cell death mechanisms play critical roles in SCI and that the nontoxic peptides including Hc-TeTx may exert protective effect and decrease cell death following SCI. CONCLUSION Our preliminary findings suggest a possible therapeutic agent to improve survival after spinal cord trauma, but further analysis are still needed to evaluate the difference between acute and chronic injuries. LEVEL OF EVIDENCE N/A.
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Affiliation(s)
- Murat Celal Sozbilen
- Department of Orthopaedics and Traumatology, Dr Behcet Uz Child Diseases and Surgery Research and Training Hospital, Konak Izmir, Turkey
| | - Murat Ozturk
- Department of Orthopaedic Surgery, School of Medicine Hospital, Ege University, Bornova, Izmir, Turkey
| | - Gizem Kaftan
- Department of Biochemistry, Faculty of Pharmacy, Ege University, Bornova, Izmir, Turkey
| | - Taner Dagci
- Department of Physiology, School of Medicine, Ege University, Bornova, Izmir, Turkey.,Center for Brain Research, Ege University, Bornova, Izmir, Turkey
| | - Halit Ozyalcin
- Department of Orthopaedic Surgery, School of Medicine Hospital, Ege University, Bornova, Izmir, Turkey
| | - Guliz Armagan
- Department of Biochemistry, Faculty of Pharmacy, Ege University, Bornova, Izmir, Turkey
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Werner E, Grundmann G, Kaftan G. [A sino-pulmonary syndrome in pneumonologic practice--alpha 1-antitrypsin deficiency in emphysema patients]. Z Gesamte Inn Med 1984; 39:377-378. [PMID: 6333762] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
An illness in the arial of the paranasal sinuses was found in 43% of 120 persons with obstructive emphysema. In 40 cases the alpha 1-antitrypsin-concentration in serum was determined. The average of 1.73 +/- 0.19 g/1 was clearly lower than the 2.25 g/1 of normal-series. The clinical-therapeutic consequences and also the possible importance in work-medical examinations or expert-opinions of adequate occupational diseases will be pointed out.
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