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      Potensi Tripeptida sebagai Inhibitor Matriks Metalloproteinase-1 dan Aktivitasnya sebagai Antioksidan

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      Date
      2024
      Author
      Kusumawati, Djuanita Tsaumi
      Kurniatin, Popi Asri
      Ambarsari, Laksmi
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      Abstract
      Kulit seringkali terpapar langsung dari lingkungan oksidatif, salah satunya radiasi ultraviolet (UV). Radiasi sinar UV berlebih menyebabkan pembentukan ROS yang berdampak pada peningkatan ekspresi enzim penyebab terjadinya photoaging dan photocarcinogenesis yaitu MMP-1. Penelitian ini bertujuan mengetahui lebih lanjut potensi tripeptida RRR, RRQ, RRT, dan RRV yang merupakan hasil terbaik dari studi in silico sebagai inhibitor enzim MMP-1 dan mengidentifikasi aktivitasnya sebagai antioksidan. Metode pengujian yang digunakan adalah inhibisi enzim dengan kit MMP-1 ab139443, serta antioksidan dengan metode FRAP dan ABTS. Hasil yang diperoleh dari penelitian ini adalah tripeptida RRR, RRQ, RRT, dan RRV secara berurutan memiliki aktivitas enzim dengan persen inhibisi tertinggi 74,82%. Hasil tersebur sesuai dengan penelitian in silico yang telah dilakukan sebelumnya. Seluruh sampel tripeptida memiliki aktivitas antioksidan dalam jumlah rendah, dengan nilai aktivitas tertinggi pada tripeptida RRR sebesar 4,186 ± 0,041 µmol AAE/g DW pada metode FRAP dan 5,332 ± 0,292 µmol AAE/g DW pada metode ABTS.
       
      Skin is frequently exposed to various harmful substances in the environment that can cause oxidative damage. Ultraviolet (UV) radiation is one of the most common sources of oxidative stress for the skin. Excessive UV radiation exposure can damage skin cells, leading to the formation of ROS (reactive oxygen species). ROS can increase the expression of MMP-1 (matrix metalloproteinase) enzyme, which can breakdown collagen and contribute to photoaging and photocarcinogenesis. This research aimed to investigate the potential of tripeptides RRR, RRQ, RRT, and RRV as MMP-1 enzyme inhibitor, which are the best results of in silico studies. Also identify their antioxidant activity. The test methods used were MMP-1 inhibition with ab1394443 kit, and antioxidant activity with FRAP and ABTS method. The tripeptides RRR, RRQ, RRT, and RRV were all effective at inhibit the activity of MMP-1 enzyme, respectively. Tripeptides RR have the highest inhibition percentage of 74.82%. These results are consistent with the results of previous in silico studies. All tripeptides exhibited low antioxidant activity, the most potent antioxidant among them was tripeptide RRR that exhibits antioxidant activity of 4.186 ± 0.041 µmol AAE/g DW using FRAP method and 5.332 ± 0.292 µmol AAE/g DW using ABTS method.
       
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      http://repository.ipb.ac.id/handle/123456789/157925
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      • UT - Biochemistry [1463]

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      Copyright © 2020 Library of IPB University
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      Indonesia DSpace Group 
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