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Journal : The Indonesian Biomedical Journal

Role of HIF-1, Siah-1 and SKN-1 in Inducing Adiposity for Caenorhabditis elegans under Hypoxic Conditions I Gede Widhiantara; Anak Agung Ayu Putri Permatasari; I Wayan Rosiana; I Wayan Putu Sutirtayasa; Ferbian Milas Siswanto
The Indonesian Biomedical Journal Vol 12, No 1 (2020)
Publisher : The Prodia Education and Research Institute (PERI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18585/inabj.v12i1.1007

Abstract

BACKGROUND: Hypoxia has been shown to be able to induce adiposity. However, the mechanism and factors involved in this effect still remains unclear. Hence, we sought to investigate the role of oxygensensitive factors regarding hypoxia-induced adiposity in nematode Caenorhabditis elegans.METHODS: The C. elegans were grown on nematode growth medium (NGM) agar plates seeded with Escherichia coli OP50 at 20°C. The ratio of width/body length was measured using the morphometry analysis. Fat accumulation was examined using Sudan Black methods. Protein levels of sterol binding protein (SBP)-1 were assessed by immunoblotting. Lifespan assay was performed at 20°C and was monitored every two days.RESULTS: The results showed that of all mutant used, only hif-1 mutant which did not experience an increase in the ratio of width/body length (p>0.05) and fat accumulation (p>0.05), indicating that hypoxia-inducible factors (HIF)-1 plays an important role in the pathogenesis of hypoxia-induced adiposity. Both siah-1 and skn-1 mutants experienced SBP-1 protein elevation (p<0.05), and increased fat-6 mRNA expression (p<0.05) which were not experienced by a hif-1 mutant (p>0.05) further supporting that HIF-1 acts as an upstream regulator fromSBP-1.CONCLUSION: In general, the results of this study provide evidences of the involvement of the transcription factor HIF-1 in inducing adiposity under the hypoxic conditions. However, we did not find the involvement of seven in absentia homolog-1 (Siah-1) and skinhead-1 (SKN-1).KEYWORDS: hypoxia, adiposity, fat, HIF-1, Siah-1, SKN-1, C. elegans
Purple Sweet Potato Reduces Malondialdehyde and TNF-a, Increases p53, and Protects Histopathological Appearance in Formaldehyde-induced Nasopharyngeal Carcinoma Rats Ni Ketut Susilawati; I Wayan Putu Sutirta Yasa; Wayan Suardana; Sri Maliawan; I Made Jawi; Achmad Chusnu Romdhoni; Hamsu Kadriyan; I Wayan Gede Artawan Eka Putra; I Gusti Kamasan Nyoman Arijana
The Indonesian Biomedical Journal Vol 14, No 2 (2022)
Publisher : The Prodia Education and Research Institute (PERI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18585/inabj.v14i2.1906

Abstract

BACKGROUND:Purple sweet potato tuber ethanol extract (PSPTEE) has been known to have benefits in various disease, including to prevent nasopharyngeal carcinoma (NPC). However, there has been no research on PSPTEE in preventing the proliferation of nasopharyngeal mucosal epithelial cells induced by formaldehyde through the oxidative stress mechanisms and inflammatory process. Studies have proven the effect of PSP on various cancer cells, but the carcinogenesis process of the nasopharyngeal mucosal epithelium is still limited. Hence, this study aimed to demonstrate the mechanism for preventing histopathology changes with PSPTEE due to formaldehyde exposure.METHODS: Thirty-two formaldehyde-induced Wistar rats were treated with or without 1g/kgBW/day PSPTEE for 16 weeks. Malondialdehyde (MDA) level were examined with spectrophotometry method, while tumor necrosis factor (TNF)-α and p53 with enzyme linked immunosorbent assay (ELISA) method. The histopathology appearance of the nasopharyngeal epithelium was observed with hematoxylin-eosin (HE) staining.RESULTS: MDA and TNF-α levels in control and treatment group were 22.89±2.84 μM; 9.83±0.89 μM and 84.18±11.58 ng/L; 73.92±10.59 ng/L, respectively, and they showed significant difference. Meanwhile, the level of p53 showed no significant difference. Histopathology appearance showed a significant difference. Path analysis for MDA, TNF-α and p53 levels contributed 28.7% to histopathology appearance. MDA have an effect on significant direct effect on TNF-α. TNF-α has a significant direct effect to histopathological appearance. Indirect influence MDA on histopatological appearance were smaller than the direct effect. TNF-α has the greatest influence on histopatological appearance.CONCLUSION: Formaldehyde induces the histopathology appearance in nasopharyngeal epithelium. This study also demonstrates the mechanism to prevent the nasopharynx epithelial histopathology appearance by administration of PSPTEE.KEYWORDS: PSP, MDA, TNF-α, p53, nasopharynx epithelial
Co-Authors Adhitya, Putu Gde Surya Agung Nova Mahendra Agung Wiwiek Indrayani Airin Que Ali Djamhuri Amaral, Meriana Barreto Anak Agung Gede Sudewa Djelantik Anak Agung Ngurah Subawa Anak Agung Wiradewi Lestari Anak Agung Wiradewi Lestari, Anak Agung Anom Suardika Astini, Dewa Ayu Agung Alit Suka Bagus Komang Satriyasa Bastianus Alfian Juatmadja Benny Supono Calvin Jonathan Cokorda Agung Wahyu Purnamasidhi Cokorda Istri Dewiyani Pemayun D.P.G. Jananuraga Maharddhika Desak Gde Diah Dharma Santhi Dewa Ayu Putu Rasmika Dewi Dewi, Ni Kadek Ari Kusuma Dharayani, Luh Anandita Dharma Santhi, Desak Gde Diah Dina Sophia Margina Divasta, I G Mahapraja Fatqur Rochman Feliciano Pinto, Feliciano Ferbian Milas Siswanto Gde Ary Putra Kamajaya Gede Agus Eka Tirta Putra Gede Agus Suwiryawan Gusti Ngurah Sutapa Hamsu Kadriyan Haneetha Yogarajah I A Putri Wirawati I Dewa Made Sukrama I Gde Raka Widiana I Gde Suranaya Pandit I Gede Juliarta I Gede Widhiantara I Gst Agung Dwi Mahasurya I Gusti Agung Dyah Ambarawati I Gusti Agung Ngurah Radhitya Wijaya Radhitya Wijaya I Gusti Kamasan Arijana I Gusti Made Aman I Kadek Arya Candra I Kadek Septiawan I Ketut Agus Somia I Ketut Suastika I Ketut Suwiyoga I Made Ady Wirawan I Made Bagus Cahya Wibawa I Made Bakta I Made Dwikayana I Made Jawi I Made Oka Adi Parwata I Made Sudarmaja I Made Tomik Nurya Wardana I NYOMAN MANTIK ASTAWA I Nyoman Wande I Nyoman Wande I W. Sudarsa I Wayan Gede Artawan Eka Putra I Wayan Rosiana I Wayan Sumardika I Wayan Wita I. B. T. Wibawa Manuaba, I. B. T. Wibawa I. B. Tjakra Wibawa Manuaba I. K. Widiana, I. K. I.A.A. Widhiartini I.B.GDE ANANTA MAHESVARA IBN Dwipayana Manuaba Ida Ayu Kemala Wasita Manuaba Ida Bagus Made Suryatika Ida Bagus Ngurah Ida Bagus Putra Manuaba Ida Bagus Verry Kusumaningrat Ida Bagus Wayan Kardika Ida Kurniawati, Ida IGA Ayu Ratih Pradnyadewi Ignatius Ferdi Yuatmadja Indah Pramita Indradewa, Rhian Indrayani, Pande Kadek Putri Rahayu Intan Astariani Kamayoga, I Dewa Gede Alit Karta Sawenda Ketut Siki Kawiyana Ketut Suega Ketut Suryana Ketut Tuti Parwati Merati Ketut Widyani Astuti Lesmana, Cokorda Agung Bagus Jaya Lesmana, I Wayan Lolik Luh Putu Sukma Diyanti Made Ayu Widyaningsih Made Dyah Khrisnadewi MADE RATNA SARASWATI . Melania Antonia Barreto Cerqueira Michael Christian Widjaja Milaviwanda, Luh Komang Ayu N. K. Niti Susila, N. K. Naw, Sin War Ni Gusti Ayu Putu Lestari Santika Dewi Ni Kadek Mulyantari Ni Kadek Nita Utami Ni Ketut Susilawati Ni Ketut Susilawati Ni Luh Candra Mas Ayuni Ni Luh Wayan Pani Ambarasari Ni Made Dharma Laksmi Ni Made Linawati Ni Nyoman Mahartini Ni Nyoman Mahartini Ni Nyoman Mahartini Ni Putu Oktaviani Rinika Pranitasari Ni Putu Widya Nandasari Ni Wayan Ari Anindita Sari Ocktaviana Saputri, Legis Pande Ayu Naya Kasih Permatananda Pande Komang Gede Bayu Wikrama Permatasari, Anak Agung Ayu Putri Poniman, S. Prabasari, Pande Visca Gayatri pradnya wibawa, komang budhi Pratiwi, Cokorda Agung Pujawan, I Made Naris Purnamawati, Susy Puspa Negara, Anak Agung Gede Angga Putu Angga Wiradana Putu Astawa Putu Budhiastra Putu Diani Wirayanti Raka-Sudewi A. A. Romdhoni, Achmad Chusnu Rudi Wisaksana S. Herawati, S. Sagung Novita Widyaningrat Saisnu Supta, I Wayan Santosa, I Gusti Ngurah Putra Eka Sianny Herawati Sri Maliawan Sri Wahyuni Susy Purnawati Swari, Kadek Gyna Yadnya Thaha .. Tirtha Yasa, I Nyoman Wawan Tjokorda Gde Agung Suwardewa Tjokorda Gede Oka Tri Pramartha, I Nyoman Valari, Putu Kavita Krisnina Wayan Suardana Widiyanti, I Gusti Ayu Wijaya Kusuma Yayang Christian Yenny Kandarini