Mangkuliguna, Ghea
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The Potential of eCD4-Ig, Delivered by Adeno-Associated Virus (AAV) Vector as a Novel Vaccine for HIV/AIDS Infection Mangkuliguna, Ghea
SCRIPTA SCORE Scientific Medical Journal Vol. 2 No. 2 (2021): SCRIPTA SCORE Scientific Medical Journal
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/scripta.v2i2.3922

Abstract

Background: HIV/AIDS has already become one of the world's major health issues taking its toll on millions of lives each year. Developing an HIV vaccine with excellent efficacy has become a global urgency that must be addressed immediately. Recently, researchers have successfully developed a more self-like molecule which is a fusion protein between human CD4 domains and immunoglobulin G (IgG) Fc with a CCR5-mimetic sulfopeptide in the carboxy terminus. This molecule, eCD4-Ig, targets only the conserved regions of HIV Env and thus demonstrated the most remarkable potency and breadth so far. By using adeno-associated virus (AAV) vector, eCD4-Ig’s long-term expression in vivo can be achieved. Objectives: Evaluate the efficacy of AAV-eCD4-Ig as both preventive and therapeutic vaccine for HIV/AIDS infection. Methods: A systematic literature study was conducted with the database in PubMed, ScienceDirect, and Proquest. No time and language restriction were applied. Discussion: This review shows that eCD4-Ig eliminates HIV-infected cells through neutralization and antibody-dependent cell-mediated cytotoxicity (ADCC). Moreover, eCD4-Ig is also capable of preventing HIV infection in vivo. Delivered with AAV, eCD4-Ig is maintained stably at both protective and therapeutic levels, as well as gives robust protection for rhesus macaques for almost a year long through a single injection. Conclusion: This study offers evidences that AAV-eCD4-Ig appears to have the potential to be an effective vaccine to prevent HIV infection. Keywords: AAV, AIDS, eCD4-Ig, HIV, vaccine   Latar Belakang: Pengembangan vaksin HIV yang efektif menjadi sangat penting mengingat tingginya angka kematian yang ditimbulkan oleh HIV/AIDS. Beberapa tahun terakhir, peneliti berhasil menemukan sebuah molekul yang tersusun atas domain CD4 manusia, immunoglobulin G (IgG) Fc, dan sulfopeptida yang menyerupai CCR5. Molekul yang dinamakan eCD4-Ig ini menargetkan area konservatif dari HIV Env sehingga berpotensi untuk menjadi vaksin HIV yang efektif. Ekspresi eCD4-Ig akan dipertahankan menggunakan Adeno-associated Virus Vector (AAV). Tujuan: Evaluasi efektivitas AAV-eCD4-Ig sebagai vaksin untuk HIV/AIDS. Metode: Penelitian dilakukan dengan melakukan tinjauan pustaka dari beberapa database jurnal, yakni PubMed, ScienceDirect, dan Proquest tanpa ada batasan waktu dan bahasa. Pembahasan: eCD4-Ig membunuh sel-sel yang terinfeksi HIV melalui proses netralisasi dan antibody-dependent cell-mediated cytotoxicity (ADCC). eCD4-Ig juga memberikan perlindungan terhadap infeksi HIV. Ekspresi AAV-eCD4-Ig sangat stabil untuk dosis protektif dan terapeutik, sekaligus melindungi rhesus macaques dari infeksi HIV selama hampir 1 tahun lamanya hanya dengan sekali injeksi. Kesimpulan: AAV-eCD4-Ig memiliki potensi yang menjanjikan untuk menjadi vaksin HIV yang efektif bagi seluruh penderita HIV/AIDS di seluruh dunia. Kata Kunci: AAV, AIDS, eCD4-Ig, HIV, vaksin
1-hydroxymethyl Harmine-TGFβSF Inhibitor: Inovasi Terapi Diabetes Melitus Terbaru Melalui Inisiasi Proses Regenerasi Sel β Pankreas pada Penderita DM Tipe 1 dan 2 Mangkuliguna, Ghea; Glenardi; Kuatama, Rexel
SCRIPTA SCORE Scientific Medical Journal Vol. 2 No. 2 (2021): SCRIPTA SCORE Scientific Medical Journal
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/scripta.v2i2.3926

Abstract

Background: Type 1 and 2 diabetes mellitus (DM) is a chronic metabolic disease most commonly affects millions of people worldwide. Despite the differences in pathogenesis, both share one thing in common - that is the drastic depletion in the number of pancreatic β cells. Unfortunately, physiological proliferation of β cells has come to a halt starting from the first year of neonatal. To overcome this problem, researchers have been searching for molecules with the ability to induce β cells proliferation. Upon extensive screening, only harmine was proven to be the most potent β cells proliferation inducer. Furthermore, combination of harmine with TGFβSF inhibitor was found to boost harmine’s effectivity even more. Another development was also made to improve harmine’s selectivity by incorporating 1-hydroxymethyl group. Objective: Evaluate the potency of 1-hydroxymethyl harmine-TGFβSF inhibitor as a novel therapy for DM. Method: A systematic literature study was conducted with the database from Pubmed, Google Scholar, ScienceDirect, and Proquest for articles published within 2015-2019. Discussion: This literature review yields result that harmine-TGFβSF inhibitor is proven to induce β cells proliferation up to 18%/day or equal to 18 times the normal cell proliferation rate during embryogenesis. Moreover, incorporating 1-hydroxymethyl group into harmine is proven not only to improve selectivity but also lessen the toxicity, making 1-hydroxymethyl harmine safe as a novel therapy for diabetes. Conclusion: 1-hydroxymethyl harmine-TGFβSF inhibitor display promising potential as a novel therapy for all type of diabetes patients. Keywords: diabetes mellitus, harmine, TGFβSF inhibitor, β cell proliferation   Latar Belakang: Diabetes Melitus (DM) tipe 1 maupun tipe 2 merupakan penyakit metabolik kronis yang paling banyak ditemukan di seluruh dunia. Walaupun memiliki proses patogenesis yang berbeda, namun kedua tipe DM ini ternyata memiliki kesamaan, yaitu terjadinya penurunan kuantitas sel β pankreas. Sayangnya, kemampuan regenerasi sel β pankreas manusia telah terhenti semenjak tahun pertama masa neonatal. Untuk menangani permasalahan tersebut, para peneliti menemukan sebuah molekul bernama harmine yang terbukti efektif menginisiasi proses regenerasi sel β pankreas. Selanjutnya, untuk meningkatkan efektifitas dari harmine agar lebih baik lagi, peneliti kemudian mengkombinasikan harmine dengan TGFβSF inhibitor. Sedangkan, untuk meningkatkan selektivitas dari harmine, peneliti menambahkan gugus 1-hidroksimetil pada molekul tersebut. Tujuan: Evaluasi potensi 1-hydroxymethyl harmine-TGFβSF inhibitor sebagai terapi utama bagi semua penderita DM. Metode: Penelitian dilakukan dengan melakukan tinjauan pustaka dari beberapa database jurnal, yakni PubMed, Google Scholar, ScienceDirect dan ProQuest dengan kriteria literatur dipublikasikan dalam kurun waktu 2015-2019. Pembahasan: Studi literatur ini menunjukan bahwa harmine-TGFβSF inhibitor telah terbukti mampu meningkatkan proliferasi sel β pankreas manusia hingga mencapai 18%/hari atau setara dengan 18 kali kecepatan embriogenesis pada sel normal. Selain itu, penambahan gugus 1-hidroksimetil pada harmine juga telah terbukti tidak hanya mampu meningkatkan selektivitas dari molekul tersebut, tetapi juga mampu menurunkan efek toksisitasnya, sehingga aman digunakan sebagai terapi anti-diabetes terbaru. Kesimpulan: 1-hydroxymethyl harmine-TGFβSF inhibitor memiliki potensi yang menjanjikan untuk menjadi terapi baru bagi semua tipe penderita DM. Kata Kunci: diabetes mellitus, harmine, proliferasi sel β, TGFβSF inhibitor