
Calon Promotor Program Doktoral Padjadjaran Tahun 2025
Nama Lengkap: Prof. Apt. Nasrul Wathoni, M.Si., Ph.D.
E-mail: [email protected]
Bidang Keahlian: Farmasetika dan Teknologi Farmasi berbasis Biopolimer
Prodi S3 Calon Mahasiswa: Doktor Farmasi
Judul Penelitian yang Ditawarkan:
Spray Film Hidrogel Nanostructured Lipid Carrier Berbasis Propolis dan α-Mangostin untuk Penyembuhan Luka Diabetes
Hydrogel Spray Film of Propolis- and α-Mangostin-based Nanostructured Lipid Carrier for Diabetic Wound Healing
Abstrak:
Isolat α-mangostin (αM) berasal dari buah manggis dan dikenal memiliki sifat antioksidan, antiinflamasi, dan antimikroba yang mendukung penyembuhan luka. Modifikasi menjadi sistem pembawa lipid berstruktur nano (Nanostructured Lipid Carrier/NLC) berbasis propolis meningkatkan efek farmakologisnya secara sinergis. Penelitian kami sebelumnya telah berhasil memformulasikan NLC berbasis propolis yang mengandung αM ke dalam Spray Pembentuk Film-Hidrogel (SPFH-NLC-P-αM) untuk meningkatkan waktu kontak lokal, profil pelepasan berkelanjutan, dan efek penyembuhan luka diabetes pada hewan uji. NLC-P-αM diinkorporasikan ke dalam SPFH dengan berbagai polimer (kitosan, Carbopol 940, dan natrium karboksimetil selulosa) dan konsentrasinya dieksplorasi untuk memilih formula optimal. Setelah melalui evaluasi fisiko-kimia dan uji stabilitas, didapatkan formula optimal berbasis Carbopol 940. Uji kemanjurannya secara in-vitro menggunakan garis sel fibroblast NIH/3T3 yang dimodifikasi menyerupai sel diabetes, dan in-vivo menggunakan model mencit diabetes yang diinduksi alloxan menunjukkan keamanan yang sangat baik pada sel-sel fibroblas NIH/3T3, untuk hasil in-vivo mencapai tingkat penutupan luka tertinggi pada hari ke-14, yang lebih baik daripada αM dan kontrol. Analisis histologis mengkonfirmasi berkurangnya peradangan, epidermis yang lebih tipis, dan regenerasi jaringan yang lebih baik pada kelompok NLC-P-αM, yang berarti kemanjuran terapeutiknya yang unggul. Penelitian kami sebelumnya telah mencapai TKT 3. Pada rencana penelitian ini akan meningkatkan TKT menjadi 5, di tahun pertama akan dilaksanakan uji keamanan baik pre-klinis maupun pre-klinik fase 0, yakni uji in-vivo toksisitas akut, kronis dan subkronis. Di tahun kedua dilaksanakan uji stabilitas kimia α-mangostin selama penyimpanan, dan uji klinis terbatas fase 1 pada manusia, serta feasibility study fitofarmaka sebagai proses awal hilirisasi. Target luaran tahun pertama adalah prototipe SPFH-NLC-P-αM yang diuji di kondisi terbatas dan paten sederhana. Tahun kedua mencakup laporan hasil pengujian uji stabilitas prototipe SPFH-NLC-P-αM di lembaga tersertifikasi dan dokumen feasibility study SPFH-NLC-P-αM sebagai fitofarmaka. Luaran tambahan meliputi publikasi internasional hasil studi keamanan in-vivo, protokol dan hasil uji klinik terbatas.
Abstract:
α-Mangostin (αM), a bioactive compound isolated from mangosteen fruit, is well known for its antioxidant, anti-inflammatory, and antimicrobial properties that support the wound healing process. To enhance its effectiveness, αM has been developed into a nanostructured lipid carrier (NLC) system incorporating propolis, which offers synergistic pharmacological effects. In our previous research, we successfully formulated a propolis-based NLC containing αM into a Hydrogel Film-Forming Spray (SPFH-NLC-P-αM). This formulation was designed to increase local contact time, provide sustained drug release, and accelerate the healing of diabetic wounds. Various polymers—such as chitosan, Carbopol 940, and sodium carboxymethyl cellulose—were explored in the development process. Following comprehensive physicochemical and stability testing, the Carbopol 940-based formula was found to be the most optimal. In vitro tests were conducted using NIH/3T3 fibroblast cells modified to mimic diabetic conditions, while in vivo studies were performed on alloxan-induced diabetic mice. The results demonstrated excellent safety in fibroblast cells and showed that SPFH-NLC-P-αM achieved the highest wound closure rate by day 14, outperforming both αM alone and the control group. Histological analysis further revealed reduced inflammation, a thinner epidermis, and improved tissue regeneration in the SPFH-NLC-P-αM group, indicating superior therapeutic performance. Our current research has reached Technology Readiness Level (TRL) 3. Moving forward, we aim to advance to TRL 5. In the first year, the focus will be on safety assessments, including in vivo acute, subchronic, and chronic toxicity testing as part of preclinical phase 0 studies. In the second year, we will conduct chemical stability testing of α-mangostin during storage and initiate a limited phase 1 clinical trial in humans. We will also begin a feasibility study to explore the potential of developing this formulation as a phytopharmaceutical product, marking the initial step toward commercialization. The targeted outcomes for the first year include a functional SPFH-NLC-P-αM prototype tested under controlled conditions, along with a simple patent application. The second year will focus on securing certified stability test results and producing a feasibility study report to support the product’s development as a phytopharmaceutical. Additional outcomes include an international publication based on in vivo safety data, as well as clinical trial protocols and preliminary findings from the limited human study.