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Journal : Althea Medical Journal

Var Gene Encoding Duffy-Binding Like (DBL) 1α- Plasmodium Falciparum Erythrocyte Membrane Protein 1 (PfEMP1) as Diagnostic Marker and Clinical Predictor Candidates for Falciparum Malaria Dewi, Rosita; Sulistyaningsih, Erma; Aprilia, Annisa Nadya; Kusuma, Irawan Fajar; Sillehu, Sahrir
Althea Medical Journal Vol 11, No 4 (2024)
Publisher : Faculty of Medicine Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15850/amj.v11n4.2396

Abstract

Background: The pathogenesis of severe malaria involves the antigenic protein Plasmodium falciparum erythrocyte membrane protein-1 (PfEMP1), encoded by the var gene. One of the important domains in PfEMP1 is Duffy Binding Like 1α (DBL1α). To diagnose malaria, microscopic examination has low sensitivity and specificity, therefore, the development of molecular-based methods is needed. This study aimed to determine the potential of DBL1α-PfEMP1 as a diagnostic marker and clinical predictor for falciparum malaria.Methods: An exploratory descriptive study was conducted in 2019 on malaria patients at the Tiakur public health center, Southwest Maluku, Indonesia. Blood samples of patients infected with Plasmodium falciparum malaria were collected on filter paper for DNA isolation. Amplification by polymerase chain reaction (PCR) method used primers αAF [5'-GCA CG(A/C) AGT TTT GC-3'] and αBR [5'-GCC CAT TC(G/C) TCG AAC CA-3'] with cycles of denaturation 95oC 1-minute, annealing 42oC 1-minute, elongation 60oC 1-minute. PCR products were electrophoresed using 1% agarose gel. Amplicons were sequenced directly and analyzed using nucleotide BLAST-NCBI. Results: All patients showed mild malaria symptoms. PCR amplification yielded bands of 370 bp in all samples and 600 bp in 8 out of 10 samples, and 1 sample had a different pattern. Sequencing results confirmed that the amplicon was DBL1α, a var gene that had similarities to sequences from other regions.Conclusion: Positive amplification and sequencing results confirm the sensitivity of DBL1α-PfEMP1 as a diagnostic marker. The sequence variability of PCR product implies the presence of DBL1α variations, indicating a correlation with clinical outcomes and making it a clinical predictor.
Co-Authors Adi Darma Effendi Afrina, Cut Agus R Rahman Agustina, Ani Aini, Nada Qurrota Ajeng Margareta Sari Al Munawir Alif Mardijana Amilin Amilin Angga Mardro Raharjo, Angga Mardro Ansari, Rahman Apriani, Susi Aprilia, Annisa Nadya Aprilya Pratiwi, Nadilla Awani Irewati Azham Purwandhono Aziz, Ayu Munawaroh Bintang, Muhammad Farrel Ravidinata Masoga Bi’izzyk, Avie Baldana Cholis Abrori, Cholis Chrisnaji Banindra Yudha Cicih Komariah CPF. Luhulima Damayanti Suhita Dessy Agustina Sari Dewantoro, Dicky Dewi Riniarti Dhiah Anis Salsabila Dina Helianti Dini Agustina Dita Diana Parti Dodo Zaenal Abidin Effiyaldi Eko Subastian Elly Nurus Sakinah, Elly Nurus Erfan Efendi Erma Sulistyaningsih Fitriana, Ani Qotuz Zuhro’ Gianevan, Nicholas Jirezra Gilang Vigorous Akbar Eka Candy Hafidin, Muhammad Ananda Faris Hakiim, Azafilmi Hasyim Asy’ari Hayati Nufus Herdhata Agusta Herniyanti Indriana Kartini Irawan Fajar Kusuma Irawan, Riyant Julius Kalangi Kamila, Vina Zahrotun Khoirul Fahri Arrijal Laily Rahmawati liza Marlia Luthfiyyah, Nur Atikah M. Ali Shodikin Mahriani Mahriani Maria Ulfa Maulana, Aditha Satria Moch. Agus Krisno Budianto Muhammad Noor Kholid Muhammad Zidan Muhtar Ady Kusuma Munawaroh, Ayu Nadaa Avria Hanum Nindya Shinta Rumastika Nurhaliza, Salsabilla Pelita Sari Pralampita, Pulong Wijang Prasetya, Eky Pribadi , Muhammad Iqbal Putut Pamilih Widagdo, Putut Pamilih Rahami, Nahla Ahmad Rahma, Nafisah Hani Asyifah Rena Normasari Rini Riyanti Roat Yeti Mustafida Rosita Sopwi Nur Lailly Sanda, Fara Fasah Sandy Nur Ikfal Raharjo Sa’diyah, Nindya Audatus septa surya wahyudi, septa surya Setyadi, Hario Jati Shabrina Shahifa Audy Rahima Sheila Rachmania Sheilla Rachmania, Sheilla Sillehu, Sahrir Siti Zaenab Solihin Sidik Sudradjat Sudradjat Sulistyaningsih , Erma Sumadi Susantin Fajariyah Teuku Salfiyadi Tri Nuke Pudjiastuti Widyatmoko, Bondan WINARTI WINARTI Winarti Winarti Yan Sukmawan, Yan Yuli Hermansyah Yuli Hermansyah, Yuli Yunita Armiyanti Zahniar, Zahniar