Dewajani Purnomosari
Department Of Histology And Cell Biology, Faculty Of Medicine Public Health And Nursing, Universitas Gadjah Mada, Yogyakarta, Indonesia

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The relationship between sirtuin 1 (SIRT1) expression and tumor size, Proliferating Cell Nuclear Antigen (PCNA) expression and histological grading in rat breast carcinoma induced by dimethylbenz()anthracene (DMBA) Novrita Padauleng; Dewajani Purnomosari; Sri Herwiyanti; . Harjadi; . Irianiwati; Sitarina Widyarini
Journal of the Medical Sciences (Berkala Ilmu Kedokteran) Vol 45, No 04 (2013)
Publisher : Journal of the Medical Sciences (Berkala Ilmu Kedokteran)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2060.833 KB) | DOI: 10.19106/JMedScie004504201301

Abstract

Controversy regarding the role of SIRT1 in pathology of cancers exists and is still under debate.SIRT1 could act as either a tumor supressor or tumor promotor. This study was conducted toevaluate the relationship between SIRT1 expression and tumor size, Proliferating Cell NuclearAntigen (PCNA) expression and histological grading in rat breast carcinoma induced bydimethylbenz(á)anthracene (DMBA). Thirty female Sprague Dawley rats were randomly allocatedinto three groups with 10 rats in each group. Group 1 as negative control was just fed thestandard food. Group 2 as vehicle control was fed the standard food and corn oil. Group 3 asinduction group was fed the standard food and induced with DMBA at dose of 20 mg/kg bodyweight (BW) in corn oil twice a week for five weeks. All rats were palpated weekly to determinethe appearance, size and location of tumors. Sixteen weeks after DMBA induction rats weresacrified and histological preparations of the breast carcinoma tissue were then processed forSIRT1 and PCNA expression examination as well as histological grading. The result showed thatSIRT1 expression was significantly higher in breast carcinoma tissue compared to normal gland(26.12 vs 0.05; p = 0.004). SIRT1-positive was observed mostly in poor histological gradecarcinomas (56.2%), and it was not observed in good histological grade carcinomas. However,there was no significantly difference between SIRT1 and histological grading (p = 0.097; r =0.285). A significant correlation between SIRT1 expression and the tumor size (p =0.009; r=0.877), as well as PCNA expression (p =0.000; r =0.790) was observed. In conclusion, thereis relationship between SIRT1 expression and tumor size as well as PCNA expression in rat breastcarcinoma induced by DMBA.
Plasma DNA as a potential biomarker for breast cancer detection Dewajani Purnomosari; Ulfah Dian Indrayani; . Irianiwati; Dian Caturini Sulistyoningrum
Journal of the Medical Sciences (Berkala Ilmu Kedokteran) Vol 48, No 4 (2016)
Publisher : Journal of the Medical Sciences (Berkala Ilmu Kedokteran)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (545.141 KB) | DOI: 10.19106//JMedSci004804201603

Abstract

Breast cancer is a major malignancy among Indonesian women. It is often diagnosed inthe later stages of cancer, which leads to poor prognosis and survival of the patients.This study investigated plasma DNA concentration as a potential biomarker for breastcancer. The benefit of using this detection is the cost-effectiveness and the samples canbe collected from patients using non-invasive methods. Plasma samples were obtainedfrom healthy controls (n=18) and cancer patients (n=22). Each sample was split intotwo equal portions for DNA isolation using two different methods for the NaI methodand a commercially available kit (Qiagen/ QA) method. The DNA concentration wasdetermined by using a GeneQuant spectrophotometer (Pharmacia). The t-test was usedfor statistical analysis, which was performed using the SPSS 17.0 software. Compared tothe commercial method, extraction using NaI yielded higher DNA concentration, both fromsamples of healthy controls and cancer patients (p=0,008 and p=0.000, respectively).Furthermore, regardless of the isolation method used, the plasma DNA concentrationwas higher in healthy controls than in cancer cases (p=0,032 and p=0.005, for NaIand QA methods, respectively). In conclusion, isolation methods significantly affect DNAconcentrations. The plasma DNA concentration of healthy controls is significantly higherthan those of the cancer cases, suggesting that plasma DNA concentration might be apotential biomarker for breast cancer detection with less invasive sampling method thantissue biopsies.
Mammographic Density and Estrogen Receptor α Gene Polymorphism in Javanese Women Lina Choridah; Teguh Aryandono; Arif Faisal; Ahmad Hamim Sadewa; Dewajani Purnomosari
Journal of the Medical Sciences (Berkala Ilmu Kedokteran) Vol 49, No 2 (2017)
Publisher : Journal of the Medical Sciences (Berkala Ilmu Kedokteran)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1279.083 KB) | DOI: 10.19106/JMedSci004902201704

Abstract

Estrogen plays important roles in breast cancer as it binds its receptor in breast tissue. The most studied variants in estrogen receptor α encoded by ESR1 gene are the ESR1 PvuII and XbaI polymorphisms, which were associated with lower sensitivity to estrogen. We determined the proportion of ESR1 XbaI and PvuII polymorphisms in Javanese woman in Yogyakarta, Indonesia and analyzed the correlation between genetic variations with mammogram density. ESR1 XbaI and PvuII polymorphisms of 50 cases and 58 controls were identified using PCR-RFLP. Breast density was assessed based on digitizer mammograms. Quantitative analysis was performed using an interactive program based on cumulus of two thresholds. Mean of density and frequencies of SNPs were compared between cases and controls to identify the association between SNPs and cancer susceptibility. Mammographic density was significantly higher in cases (52%) than controls (0.41%) (p < 0.05). Women with one or two copies of the PvuII T allele and XbaI A allele had higher mammographic density compared with women with C and G alleles, respectively. The proportion between PP and TT genotype was not statistically significant (p > 0.05), while the proportion between AA and GG was significantly different (p < 0.05). Haplotype 2 (CG/PX) was associated with lower sensitivity to estrogen and reflects a decrease of mammographic density. These findings were consistent with other studies that showed that ESR1 polymorphisms may affect breast cancer risk through differences in breast density. 
Review of immune responses correlated with COVID-19 outcomes: the fight, debacle and aftermath in the Indonesian context. Dian Eurike Septyaningtrias; Jajah Fachiroh; Dewi Kartikawati Paramita; Dewajani Purnomosari; Rina Susilowati
Journal of the Medical Sciences (Berkala Ilmu Kedokteran) Vol 52, No 3 (2020): Special Issue: COVID-19
Publisher : Journal of the Medical Sciences (Berkala Ilmu Kedokteran)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (124.092 KB) | DOI: 10.19106/JMedSciSI005203202004

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In the current pandemic, the highly contagious nature of the severe acute respiratory syndrome coronavirus type 2 (SARS-CoV-2) leads to an enormous burden for the global health care system and creates challenging socioeconomic problems. Respiratory mucosa, the main entrance of SARS-CoV-2 infection, are equipped with an innate immune defense system as the initial response against infection. Activation of the adaptive immune system facilitates viral clearance as well as providing immunological memory for prevention from subsequent exposure. However, despite repeated efforts at implementing appropriate interventions, severe and fatal cases are continuing to occur and reports of recurrent cases need clarification. Host factors may contribute to the severity of the diseases while viral immune evasion is a common phenomenon leading to severe outcomes and recurrent infection. Discussions of immunological-based tests for screening, herd immunity, along with the possible advantages or potentially futile efforts of development of vaccine and alternative immunotherapy have become a part of daily household conversations. In this review, evidence of innate and adaptive immune responses or lack of them, and immunological problems relevant for SARS-CoV-2 will be summarized. Finally, perspectives for future studies especially in the Indonesian population will be sketched.
Hipermetilasi Promoter Gen Apoptotic Protease-Activating Factor-1 (APAF1) pada Leukimia Limfoblastik Akut Anak Ika Fidianingsih; Eddy Supriyadi; Dewajani Purnomosari
Sari Pediatri Vol 14, No 2 (2012)
Publisher : Badan Penerbit Ikatan Dokter Anak Indonesia (BP-IDAI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (104.626 KB) | DOI: 10.14238/sp14.2.2012.79-83

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Latar belakang. Hipermetilasi DNA ditengarai berperan penting dalam inaktivasi gen tumor supresor (tumor suppressor gene= TSG) pada keganasan hematologi. Gen APAF1 mempunyai frekuensi hipermetilasi cukup tinggi pada leukemia limfoblastik akut (LLA) anak. Inaktivasi gen APAF1 menyebabkan sel progenitor limfoid mengalami gangguan apoptosis. Tujuan.Mengetahui frekuensi hipermetilasi promoter APAF1 pada pasien yang terdiagnosis LLA anak di RSUP DR. Sardjito Yogyakarta, serta hubungannya dengan karakteristik umur, jumlah leukosit dan imunofenotip.Metode.Dari 32 DNA sampel mononuklaer darah perifer pasien LLA anak saat terdiagnosis (Oktober 2004-Mei 2009) dideteksi menggunakan methylation spesific polymerase chain reaction(MSP). Analisis statistik dilakukan dengan menggunakan uji Fisher exact.Hasil.Hipermetilasi APAF1 terjadi pada 26 (81,3%) pasien LLA anak. Hipermetilasi APAF1 lebih banyak terjadi pada kelompok umur 1-10 tahun, jumlah leukosit t50000/μl, dan imunofenotip B, dibanding kelompok umur <1 tahun dan >10 tahun, jumlah leukosit <50000/μl, dan imunofenotip T, walaupun demikian perbedaannya tidak bermakna (p>0,05).Kesimpulan. Frekuensi hipermetilasi APAF1 mempunyai frekuensi cukup tinggi pada pasien LLA anak dan tidak berhubungan dengan umur, jumlah leukosit dan imunofenotip.
High Keratin Secretion of T47D Cell under Hypoxic Condition Annisa Annisa; Elizabeth Henny Herningtyas; Dewajani Purnomosari
The Indonesian Biomedical Journal Vol 14, No 4 (2022)
Publisher : The Prodia Education and Research Institute (PERI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18585/inabj.v14i4.1999

Abstract

BACKGROUND: Hypoxia adaptation in cancer cells is mediated by hypoxia inducible factor (HIF)-1 that induces the expression of various proteins. Up to date, the analysis of T47D breast cancer cells-secreted protein is still limited. The aim of this study was to compare the protein profile secreted by T47D breast cancer cells under hypoxic and to normoxic conditions and identify the proteins as candidate for hypoxia marker proteins in T47D breast cancer cells.METHODS: T47D breast cancer cells were cultured under standard conditions. Cells were subcultured in normoxic and hypoxic conditions. The normoxic group was incubated with 20% oxygen and the hypoxic groups were incubated in a hypoxic chamber with 0.5% and 5% oxygen for 6, 24, and 48 hours in serum free medium. Proteins in the culture media were isolated and precipitated. Protein concentrations released by the cells were then measured by bicinchoninic assay (BCA). Protein bands were visualized by the sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE) method. The bands that had differences between the hypoxic and normoxic groups were further analyzed by liquid chromatography-mass spectrophotometer (LC-MS).RESULTS: Hypoxic groups showed higher secretory protein than normoxic group. Protein bands were found in the 0.5% hypoxic group with a size of 50-75 kDa. Secretory proteins identified by LC-MS were keratin 1, 2, 9, and 10.CONCLUSION: The T47D cell line under 0.5% hypoxic treatment showed higher secretory proteins that identified as keratin 1, 2, 9, and 10.KEYWORDS: hypoxia, secretory protein, liquid chromatography-mass spectrophotometer
Impact of Hypertension and Cardiovascular Diseases to Immune Response in COVID-19 Vaccination: A Systematic Review Karin Dhia Fahmita; Gatot Soegiarto; Laksmi Wulandari; Dewajani Purnomosari
Indonesian Journal of Tropical and Infectious Disease Vol. 11 No. 1 (2023)
Publisher : Institute of Topical Disease Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/ijtid.v11i1.40266

Abstract

To determine impact of hypertension and cardiovascular diseases towards effectivity and safety of COVID-19 vaccination. Systematic review based on PRISMA statement was done. Searching was conducted in PubMed, ScienceDirect, Scopus, and ProQuest and resulting in 6 studies involving 4,053 participants which deemed on good quality according to Joanna Briggs Institute tools for critical appraisal. After thorough analysis, we found that two out of four studies assessing mRNA-based vaccine found out that hypertension lower antibody response significantly. Two out of two studies assessing inactivated virus vaccine shown that hypertensive patients tend to have lower antibody titers compared to control. One of studies mentioned above found that antibody titer was not different between populations with cardiovascular diseases and control.Hypertension lessened response to COVID-19 vaccination regardless of vaccine type used. However, lack of studies on cardiovascular disease suggested that more studies should be conducted, along with hypertension, in-order to make meta-analysis possible to provide better evidence.
Different COVID-19 mRNA-based Vaccine Platforms as The Booster Dose and Their Impact on Omicron: A Literature-Based Overview Bagus Aulia Mahdi; Gatot Soegiarto; Laksmi Wulandari; dewajani purnomosari
Indonesian Journal of Tropical and Infectious Disease Vol. 11 No. 2 (2023)
Publisher : Institute of Topical Disease Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/ijtid.v11i2.39597

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Globally, the vaccine has been determined as one of the principal policies to tackle the COVID-19 pandemic. However, some vaccinated individuals with two complete doses of inactivated experienced SARS-CoV2 infection, including the healthcare workers (HCWs). This threat led to the emergent need for a vaccine booster with different types of platforms aiming to enhance immunity from the Omicron variant. We conducted a literature study on the concept of heterologous compared to homologous vaccines in COVID-19 vaccination. We obtained 22 studies about COVID-19 booster vaccines. Referring to seven of them, we compared and distinguished between heterologous and homologous vaccines. We then reported the literature review according to PRISMA guideline. The study demonstrated qualitatively that heterologous vaccinations boosted antibody receptor binding domain, neutralizing antibody, and spike-specific Th1 type T cell responses and had an impact on omicron infection when compared to homologous vaccines. In conclusion, heterologous, mRNA based vaccine, predominantly induces cellular and humoral responses better than the homologous vaccine. This increased immune response is expected to provide profound immunity against the Omicron.