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Acta Biochimica Indonesiana
Published by Perhimpunan Biokimia dan Biologi Molekuler Indonesia
ISSN : 26546108     EISSN : 26543222     DOI : https://doi.org/10.32889
Core Subject : Science,
Biochemistry, Genetics & Molecular Biology
Acta Biochimica Indonesiana (ActaBiolna) is a peer-reviewed and open-access journal that disseminates original research articles and review articles covering diverse topics in Biochemistry and Molecular Biology. The journal is published biannually by Indonesian Society for Biochemistry and Molecular Biology.
Arjuna Subject : Biokimia, Genetika dan Biologi Molekuler - Biokimia, Genetika dan Biologi Molekuler (Lain-Lain)
Articles 68 Documents
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The role of senescence-associated secretory phenotype (SASP) in cellular senescene Filda Vionita Irene de Lima; Novi Silvia Hardiany
Acta Biochimica Indonesiana Vol. 4 No. 2 (2021): Acta Biochimica Indonesiana
Publisher : Indonesian Society for Biochemistry and Molecular Biology

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32889/actabioina.33

Abstract

Cellular senescence is one of the defense mechanisms of cells against oncogenic signals by permanently stopping the proliferation of the cell. Senescence cells show a similar characteristic, one of them is senescence-associated secretory phenotype (SASP). SASPs secrete various components, divided according to the type of molecule secreted and based on their mechanism of action against target cells. The main components of SASP are pro-inflammatory mediators. SASP performs dual and contradictory roles, which concurrently provides beneficial effects such as tumor suppression due to the termination of proliferation, recruitment of immune cells, and tissue repair. On the other hand, SASP produces detrimental effects on cells undergoing the senescence process as well as cells in the surrounding environment by increasing tumorigenesis. This review article explains the various components of the SASP, the role of SASP in the inflammatory process, tumor suppression, and tumorigenesis.
Optimization of multiplex PCR composition to screen for SARS-CoV-2 variants of concern Maya Savira; Enikarmila Asni; Rahmat Azhari Kemal
Acta Biochimica Indonesiana Vol. 4 No. 2 (2021): Acta Biochimica Indonesiana
Publisher : Indonesian Society for Biochemistry and Molecular Biology

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32889/actabioina.58

Abstract

Background: The ongoing COVID-19 pandemic has led to the emergence of several variants of concern. To rapidly identify those variants, screening samples for whole-genome sequencing (WGS) prioritization could be performed. Objective: We optimized the polymerase chain reaction (PCR) screening method to identify the mutation in spike and ORF1a regions. Methods: We adopted primers targeting mutation in spike and ORF1a region from another study. We optimized the PCR screening method using kits readily available in Indonesia. Firstly, we compared N1 and N2 primers as internal positive control. We also compared GoTaq® 1-Step RT-qPCR System and Indonesia TFRIC-19 BioCOV-19 for the multiplex reaction. We used the optimized composition to screen SARS-CoV-2 positive samples from April – June 2021. Samples with spike and/or ORF1a target failure were subjected to whole genome sequencing (WGS). Results: The results demonstrated the N2 BioCOV-19 reaction as the optimized multiplex PCR composition for spike and ORF1a mutations screening. Whole-genome sequencing has shown that a sample with spike and ORF1a targets failure to be Alpha variant, while other samples with single target failure as non-variants of concern. Therefore, a multiplex RT-PCR composition has been optimized to detect mutation in spike and ORF1a regions. Conclusion: We have optimized a multiplex RT-PCR composition to detect mutation in spike and ORF1a regions.
Molecular docking of phytosterols in Stenochlaena palustris as anti-breast cancer Dona Marisa; Lisda Hayatie; Siti Juliati; Eko Suhartono; Noer Komari
Acta Biochimica Indonesiana Vol. 4 No. 2 (2021): Acta Biochimica Indonesiana
Publisher : Indonesian Society for Biochemistry and Molecular Biology

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32889/actabioina.59

Abstract

Background: Stenochlaena palustris, also known as kelakai or lemidi, is frequently linked to anti-inflammatory, anti-bacterial, anti-fungal, and antioxidant properties. S. palustris phytosterols are suggested to suppress the progression of breast cancer. Objective: The objective of this study is to evaluate the potential of phytosterols found in S. palustris to act as estrogen receptor (ER) inhibitors. Methods: Phytosterols (alpha-tocopherol, beta-sitosterol, campesterol, stigmasterol, fucosterol) were docked to estrogen receptor (PDB ID: 7KBS). Molecular docking parameters included Gibb's free energy and interactions between ligand and protein. ADMET properties were analyzed using pkCSM and SwissADME. Results: Alpha-tocopherol showed the highest interaction with the estrogen receptor with ΔG value -8. 9254 kcal/mol (the native ligand, raloxifene, had a G value of -12.052 kcal/mol). Leu387 (hydrogen bond); Phe404 (Phi-phi-T shaped), Leu391, Leu346, Trp383, Leu354, Ala350, Leu525, Leu349 (Alkyl) were among the residues by which a-tocopherol interacted with ER. Alpha-tocopherol has no hepatotoxicity and no skin sensitization. Conclusion: By suppressing ERa, phytosterols from S. palustris may have potential anti-breast cancer activity and may be used to prevent estrogen-dependent human cancers like breast cancer.
Correlation between malondialdehyde level and FOXO3 and CASP3 mRNA expression changed in early-onset preeclampsia placenta Ni Made Wiasty Sukanty; Febriana Catur Iswanti; Syarifah Dewi; Muhammad Faruqi; Alyssa Shafa Andiana; Ani Retno Prijanti
Acta Biochimica Indonesiana Vol. 4 No. 2 (2021): Acta Biochimica Indonesiana
Publisher : Indonesian Society for Biochemistry and Molecular Biology

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32889/actabioina.61

Abstract

Background: Preeclampsia is one of the factors causing the high maternal mortality rate. The risk of morbidity and mortality is higher in Early Onset Preeclampsia (EOPE). Failure of spiral artery remodeling can cause oxidative stress that can inhibit placental development and increase trophoblast apoptosis. Objective: This study aims to analyze the oxidative stress and apoptosis of EOPE placentas. Methods: This study is an observational study with a cross-sectional design. A total of 31 EOPE placentas and 31 normal term placentas were used to measure the concentration of malondialdehyde (MDA) and the relative mRNA expression of FOXO3 and CASP3 using the spectrophotometric and RT-qPCR methods. Results: There was no difference in MDA concentration (p = 0.580) and FOXO3 (p = 0.467) and CASP3 (p = 0.243) mRNA expression in the normal and EOPE groups. There was a strong positive correlation between FOXO3 and CASP3 mRNA expression in the normal (p= 0.0001; r = 0.938) and EOPE groups (p = 0.0001; r = 0.855). There was no correlation between MDA concentration to FOXO3 (p = 0.124; r = 0.282) and CASP3 (p = 0.569; r = 0.106) mRNA expression in normal placenta. There was positive correlation between MDA concentration to FOXO3 (p = 0.016; r = 0.429) and CASP3 mRNA expression in EOPE placenta (p = 0.028; r = 0.395). Conclusion: These results indicate that cell integrity is still maintained through the autophagy process and the level of apoptosis in the EOPE placenta is regulated by ROS through FOXO3.
Inhibition of cancer cells using target-specific 2A3 antibody-conjugated gold nanoclusters Jui-Chi Kuo; Tsung-Rong Kuo; Fajar Rinawati; Erna Susilowati; Sucipto; Dyah Ika Krisnawati
Acta Biochimica Indonesiana Vol. 4 No. 2 (2021): Acta Biochimica Indonesiana
Publisher : Indonesian Society for Biochemistry and Molecular Biology

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32889/actabioina.69

Abstract

Background: Metal nanoclusters (NCs) with outstanding structural and optical properties have been intensively validated for applications in nanomedicine and nanotechnology. Carcinoembryonic antigen-related cell adhesion molecule 6 (CEACAM6) is overexpressed in many cancer cells. Objective: The gold nanoclusters conjugated with a single domain antibody targeting CEACAM6 of 2A3 (2A3-AuNCs) were synthesized for the inhibition of cancer cells. Methods: 2A3-AuNCs were prepared via a facile hydrothermal approach. The cell viability was measured by resazurin dye reduction assay. The cell death was analyzed by fluorescence imaging. Results: Structural and optical characterizations demonstrated the successful synthesis of 2A3-AuNCs with a roughly spherical shape and a size of 2.35 nm. The 2A3-AuNCs revealed a maximum fluorescence intensity at 350 nm with a fluorescence quantum yield of 4.0%. The cell viability assay indicated that 2A3-AuNCs could inhibit the growths of cancer cells with overexpressed CEACAM6, including breast cancer MDA-MB-231 and MDA-MB-468 cells. The fluorescence imaging results also demonstrated that 2A3-AuNCs could inhibit the growth of cancer cells with MDA-MB-231 and MDA-MB-468 cells. Conclusion: Combination with the results of cell viability assay and fluorescence imaging, the surface ligand of 2A3 antibody on 2A3-AuNCs exhibited promising inhibition of CEACAM6 overexpressed cancer cells. Our work provides a potential application of AuNCs in cancer therapy.
Putative and pretreatment drug resistance mutations in reverse transcriptase gene among untreated chronic hepatitis B patients at Arifin Achmad Regional District Hospital, Riau, Indonesia Arfianti Arfianti; Fauzia Andrini Djojosugito; Maisaroh Maisaroh; Hendra Asputra; Dita Kartika Sari; Tubagus Odih Rhomdani Wahid
Acta Biochimica Indonesiana Vol. 5 No. 1 (2022): Acta Biochimica Indonesiana
Publisher : Indonesian Society for Biochemistry and Molecular Biology

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32889/actabioina.68

Abstract

Background: Mutations within the hepatitis B virus (HBV) reverse transcriptase (RT) gene have been associated with drug resistance against nucleos(t)ide analogs (NAs). Objective: This study aimed to identify mutations in the RT gene among patients with chronic hepatitis B (CHB) before receiving antiviral therapy and its relationship with the HBV genotypes. Methods: A total of 26 HBV DNA was extracted from the blood plasma of CHB patients. HBV RT gene was amplified and sequenced using the Sanger dideoxy sequencing method. The HBV genotype was determined through phylogenetic analysis using the Maximum Likelihood method. Results: The study subjects comprised 14 CHB patients without complications and 12 CHB patients with cirrhosis/hepatoma. CHB patients with cirrhosis/hepatoma were older than those without complications. The HBV genotypes comprised 15 (57.7%) genotype C and 11 (42.3%) genotype B. All treatment-naïve CHB patients did not demonstrate any classical NA resistance mutations within the RT gene. However, several putative and pretreatment resistance mutations, including F221Y, N238H, and V224I, were high frequency in more than 40% of study subjects. In addition, F221Y and N238H/Q mutations were frequently observed in genotype B, while V224 I was only found in patients infected with genotype C (p=0.000). Conclusions: There was no evidence of classical RT gene mutations associated with NA resistance in treatment-naïve patients with CHB. However, several putative and pretreatment mutations were identified as genotype-specific mutations and may contribute to antiviral resistance against NAs.
Comparing the effect of Centella asiatica L. and Acalypha indica L. treatment to carbonyl and glutathione level in the brains of old rats Ninik Mudjihartini; Reni Paramita; Astrid Mariam Khairani Siregar; Estiana Filzadiyanti; Pungguri Ayu Nega Sarsanti; Erni Purwaningsih
Acta Biochimica Indonesiana Vol. 5 No. 1 (2022): Acta Biochimica Indonesiana
Publisher : Indonesian Society for Biochemistry and Molecular Biology

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32889/actabioina.79

Abstract

Background: Free radicals in excessive concentrations damages cells and accelerate the aging process. Antioxidants found in Centella asiatica (CA) and Acalypha indica (AI) have the potential to prevent oxidative cellular damage. Objective: This study aimed to determine the effect of CA and AI on carbonyl and glutathione levels in the brain of older rats. Methods: 18-month age rats were treated using either AI, CA, or vitamin E. In addition, 18-month age and 2-month age untreated rats were used as a negative control. The brain carbonyl and glutathione levels were measured by Agustyanak and the Elmann method, respectively. Results: Treatment with CA significantly decreased brain carbonyl levels (2.87 nmol/mL) than the control rats (4.54 nmol/mL). Furthermore, treating AI did not reduce the brain carbonyl and GSH levels in aged brain rats. Conclusion: Centella asiatica can reduce the protein destruction that occurs with increasing age.
Gut microbiome diversity as adjuvant marker for immune function Mahdaleny; Febriana Catur Iswanti
Acta Biochimica Indonesiana Vol. 5 No. 1 (2022): Acta Biochimica Indonesiana
Publisher : Indonesian Society for Biochemistry and Molecular Biology

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32889/actabioina.80

Abstract

The gastrointestinal (GI) tract represents our most intimate contact with the external environment. The GI tract responsible for extracting the appropriate nutrients we need to thrive, maintaining an appropriate balance of helpful and harmful microbes, and acting as a conduit for waste removal. In essence, the extracellular matrix of gut mucosal biofilm is a complex network of microbes and their secretions, as well as the host's secretions and signals (mainly mucus/mucin). Mucin, bacterial polysaccharides, and protein combine to form a unique mucosal biofilm that serves as a home for a variety of commensal and pathogenic organisms in the host. Maintaining proper mucosal barrier function is vital for both GI and systemic health. The lumen of the gut contains numerous entities that should never reach the bloodstream or lymphatic system. The mucosal barrier's integrity is maintained by a single layer of tightly fitted columnar epithelial, and more than 70% of the immune system components are closely associated with the GI tract.
Ethanol extract of Bruguiera gymnorrhiza mangrove leaves and propolis activity on macroscopic healing of cuts in vivo Evi Kurniawaty; Shina Megaputri; Syazili Mustofa; Soraya Rahmanisa; Kholis Abdurachim Audah; Silvia Andriani
Acta Biochimica Indonesiana Vol. 5 No. 1 (2022): Acta Biochimica Indonesiana
Publisher : Indonesian Society for Biochemistry and Molecular Biology

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32889/actabioina.94

Abstract

Background: Bruguiera gymnorrhiza mangrove and propolis are often used as natural wound treatments. Its constituent is believed to promote wound healing. Objective: This study aims to explore the effect of topical administration of ethanol extract of Bruguiera gymnorrhiza mangrove leaves and propolis on wound healing activity. Methods: Twenty-four Sprague Dawley rats were randomly assigned to one of four treatment groups (n=6): aqua dest, standard wound medicine, ethanol extract of Bruguiera gymnorrhiza mangrove leaves, and propolis extract. Following the incision, treatment was given once a day for 14 days or until the wound healed. The cut area was observed by measuring the cut length using a ruler. Results: Standard wound medication took 9 days to promote healing, while the negative control (aqua dest) took 11.2 days, the ethanol extract of Bruguiera gymnorrhiza mangrove leaves took 7.3 days, and the propolis extract took 7.9 days. Conclusions: Topical administration of Bruguiera gymnorrhiza mangrove leaves ethanol extract and propolis had equal effects on the healing of wounds. Both are more effective than conventional wound ointments at healing cuts.
Teknik isolasi Na+, K+-ATPase dari otak babi : Isolation technique of Na+, K+-ATPase from pig brain Rondang Soegianto
Acta Biochimica Indonesiana No 3 (Nopember 1988)
Publisher : Indonesian Society for Biochemistry and Molecular Biology

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32889/actabiona.23

Abstract

Na+, K+-ATPase adalah enzim yang terdapat di dalam membran sel dan terintegrasi erat dengan komponen-komponen membran. Pembebasan enzim secara menyeluruh dari lokasinya dalam membran sampai sekarang belum terlaksana dengan sempurna. Salah satu masalah yang harus diatasi ialah pemisahan Na+, K+-ATPase dari protein-protein lain yang terdapat dalam membran tanpa terlalu banyak mengorbankan intergritas enzim yang sedang diisolasi. Karena organ yang berbeda mempunyai komposisi membran sel yang berlainan maka teknik isolasi enzim harus disesuaikan dengan jenis jaringan yang bakal digunakan sebagai sumber enzim. Patut diperhatikan bahwa seberapa jauh kita perlu memurnikan enzim bergantung pada tujuan eksperimen dengan enzim ini. Makalah ini membicarakan teknik isolasi Na+, K+-ATPase dari korteks otak babi dengan sistem pemurnian yang menggunakan NaI. Dikemukakan juga perbedaan metode ini dengan teknik isolasi Na+, K+-ATPase dari jaringan ginjal. Translation: Na+, K+-ATPase is an enzyme located in the inner cell membrane and is closely integrated with cell membrane components. The release of this enzyme from its source in the cell membrane cannot yet be completely performed. One problem that needs to be solved is the separation of the enzyme from other proteins within the membrane without disrupting its integrity. Since different organs have different cell membrane compositions, thus the isolation techniques of an enzyme must be adjusted based on the type of tissue as the source of the enzyme. Regarding the purpose of study using a certain enzyme, it is important to consider how far the enzyme has to be purified. This article describes the technique of Na+, K+-ATPase isolation from cortex area of pig brain using NaI purification-based method. In addition, different method to isolate the enzyme from kidney tissue is also explained.

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