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All Journal Jurnal Medik Veteriner Journal of Stem Cell Research and Tissue Engineering
Wijaya, Andi Yasmin
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Biochemistry, Genetics & Molecular Biology Engineering Health Professions Immunology & microbiology Medicine & Pharmacology Veterinary

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Epidermal Growth Factor Promotes E6 and CCL-81 Vero Cells Proliferation Under Serum-Free Condition Delaiah, Diena; Aswin, Ahmad; Susilowati, Helen; Wijaya, Andi Yasmin; Maulana, Firdausy Kurnia; Diyantoro, Diyantoro; Rodprasert, Watchareewan; Puspitasari, Yulianna; Dhamayanti, Yeni; Kuncorojakti, Suryo
Jurnal Medik Veteriner Vol. 7 No. 1 (2024): April
Publisher : Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jmv.vol7.iss1.2024.1-6

Abstract

Vero cell culture as a platform for producing viral vaccines is an established and standardized process in vaccine manufacture. Generally, Vero cell culture requires media as a source of nutrition with serum supplementation to provide growth factors. However, the serum has several disadvantages including batch to batch variation and adventitious agent. Therefore, chemically defined serum-free media (SFM) are formulated by using standardized growth factors. Epidermal Growth Factor (EGF) is one of growth factors that showed adequate mitogenic support in serum-free medium system, especially in Vero cells. In this study, SFM-EGF media was compared with serum supplementation media, namely MEM 10% and MEM 5% FBS supplementation. The cell morphology was observed using an inverted microscope and their proliferation was evaluated using a MTT colorimetric-based assay. Vero E6 and Vero CCL-81 cells morphology did not show any morphological changes. Vero E6 and Vero CCL-81 proliferation in SFM-EGF media on day one to four did not show a significant difference compared to MEM 10% or MEM 5% serum supplementation media. However, the OD values of both Vero E6 and Vero CCL-81 cells given SFM-EGF media produced an average value below MEM 10% but higher than MEM 5% FBS supplementation. As such, this study proved that utilizing SFM-EGF could support the proliferation of Vero E6 and Vero CCL-81 cells.
Evaluation and Its Impact of SARS-CoV-2 Inactivated Vaccine Candidate in K18-hACE2 Mice A'la, Rofiqul; Rantam, Fedik Abdul; Wijaya, Andi Yasmin; Susilowati, Helen; Kuncorojakti, Suryo; Diyantoro, Diyantoro; Aswin, Ahmad; Rahmahani, Jola; Suwanti, Lucia Tri; Lukiswanto, Bambang Sektiari; Yudaniayanti, Ira Sari; Setiawan, Boedi
Jurnal Medik Veteriner Vol. 8 No. 1 (2025): April
Publisher : Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jmv.vol8.iss1.2025.54-62

Abstract

The COVID-19 pandemic caused by SARS-CoV-2 requires effective vaccines to be developed. This study aimed to assess the impact of a SARS-CoV-2 inactivated vaccine candidate in k18-hACE2 mice by monitoring their body weight, immune activation, and inflammatory cytokines including IL-4, IL-6, TNF-α, and IFN-γ. The study utilized k18-hACE2 mice expressing the human angiotensin-converting enzyme 2 (hACE2) receptor. The mice were administered the inactivated vaccine candidate compared with sham and vehicle. Body weight was monitored, and serum samples were collected to measure IL-4, IL-6, TNF-α, and IFN-γ levels using ELISA. Data were evaluated using SPSS statistical analysis software. The administration of the SARS-CoV-2 inactivated vaccine candidate in k18-hACE2 mice did not result in significant changes in body weight compared to the control group. Furthermore, the levels of IL-4, IL-6, TNF-α, and IFN-γ were significantly reduced in the vaccinated mice compared to the control group, suggesting a dampening effect on the inflammatory response. This study demonstrates that the SARS-CoV-2 inactivated vaccine candidate has a minimal impact on the body weight of k18-hACE2 mice. Nevertheless, it successfully regulates the levels of IL-4, IL-6, TNF-α, and IFN-γ, suggesting its safety and beneficial impact. These findings contribute to understanding the vaccine's efficacy and safety profile in vaccine development.
Cellullar Plasticity and Dedifferentiation: A Link Between Cancer Stem Cells, Hypoxia, Cell Injury, and Inflammation Wijaya, Andi Yasmin
Journal of Stem Cell Research and Tissue Engineering Vol. 2 No. 2 (2018): JOURNAL OF STEM CELL RESEARCH AND TISSUE ENGINEERING
Publisher : Stem Cell Research and Development Center, Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (241.9 KB) | DOI: 10.20473/jscrte.v2i2.11655

Abstract

Cellular plasticity is the concept of bidirectional dynamics change cells differentiation degree which involved in the regeneration, repair and tissue turnover along the organism livespan. Cellular plasticity and dedifferentiation process are well documented in the discovery of iPCSs by introducing several transcriptional factors known as Yamanaka factor to terminally differentiated somatic cells and reverted into pluripotent state as the ESCs. iPSCs are able to exhibit ESCs differentiation potential which could produce ectodermic, mesodermic, and endodermic cell lineage. In tumour biology, the tumour plasticity also have a similar regulation and play an imporant role for maintaining tumour integrity and survival, particularly in maintaining CSCs population. Various study of cellular plasticity regulation has shown that various factors are involved, in example hypoxia, cell injury, and inflammation. Cells respond to hypoxia, cell injury, and inflammation by chemoattractant which attract repair cells to homing towards injured sites. The homing mechanism of stem cells involved EMT to facilitates migration of stem cells towards injured sites, thus leading to tissue regeneration. On the other hand, cancer metastasis also showed a connection with EMT process. EMT which showed a change in cell properties are linked to dedifferentiation and hypoxia response. Hypoxia condition has been known to preserve and both normal stem cells and CSCs stemness. HIF which protected from degradation in hypoxia condition interact with DNA by binding to HRE. HRE activation trigger transcription of numerous signalling protein which involved in stemness, cell proliferation and survival. Therefore it is concluded that cell injury, hypoxia, and inflammation could programmed cells to undergo dedifferentiation process and involved in EMT regulations. CSCs which resides insides heterogeneous tumour cells population are though to be dynamicly regulate itself in the quietscent and active state through dedifferentiation like the normal stem cells. Understanding how CSCs regulates its active an quietscent state dynamics could provide an important information for novel CSCs targeted therapy development. 
Co-Authors A'la, Rofiqul Aswin, Ahmad Bambang Sektiari Lukiswanto Boedi Setiawan Delaiah, Diena Diyantoro Diyantoro, Diyantoro Fedik Abdul Rantam Helen Susilowati, Helen Ira Sari Yudaniayanti Kuncorojakti, Suryo Lucia Tri Suwanti, Lucia Tri Maulana, Firdausy Kurnia Rahmahani, Jola Rodprasert, Watchareewan Yeni Dhamayanti Yulianna Puspitasari