Mandojo Rukmo
Dental School of Airlangga University, Surabaya

Published : 6 Documents
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Incidence of HPV Infection in Oral Squamous Cell Carcinoma and Its Association with the Presence of p53 & c-myc Mutation : A Case Control Study in Muwardi Hospital Surakarta Prayitno, Adi; Rukmo, Mandojo; Mudigdo, Ambar; Dalono, Dalono; Asnar, Elyana; Rahayu, Retno Puji; Purwanto, Joko Agus; Puspaningsih, Ni Nyoman Tri; Kuntoro, Kuntoro; Harjanto, Harjanto; Putra, Suhartono Taat
Journal of Dentistry Indonesia Vol 17, No 2 (2010): August
Publisher : Faculty of Dentistry, University of Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (487.302 KB) | DOI: 10.14693/jdi.v17i2.44

Abstract

Introduction: Annual incidence rates for oral and pharyngeal cancer are estimated at 25 cases per 100,000 in developing countries. Human papilloma virus (HPV) was implicated in pathogenesis of Cancer. The mutations of p53 and c-myc are found 50% in cancer. Objective: Aims of this research were to know the incidence of OSSC patient which realized HPV infection without p53 and c-myc gene mutation. Materials and Methods: Tissue biopsy frozen sections were taken from BOSC (Benign Oral Squamous Cell) and OSCC (Oral Squamous Cell Carcinoma) patients collected from Oral and Dental Departement of dr Muwardi Distric Hospital in Surakarta from January 2007 to January 2008. To amplify L1-HPV gene for fixed the HPV stressor. To amplify p53 and c-myc genes, continued with SSCP (Single Strand Conformational Polymorphisme) analysis and followed with measurement using densitometer, to see mutation existence. The collected data were analyzed with Chi Square. Results: BOSC patient identified 23% with HPV infections and OSCC patient identified 73% with HPV infections. Hundred percent BOSC patient with HPV infection without mutation in p53 gene and c-myc gene, 81% OSCC patient with HPV infection without mutation in p53 gene and 91% OSCC patient with HPV infection without mutation in c-myc gene. Chi  square analysis showed significant difference between BOSC and OSCC patients with HPV infection without mutation in p53 and c-myc gene. Conclusion: HPV is a factor for pathogenesis of OSCC.DOI: 10.14693/jdi.v17i2.44
The Role of Heat Shock Proteins in Pathogenesis of Oral Squamous Cell Carcinoma Prayitno, Adi; Rukmo, Mandojo; Mudigdo, Ambar; Dalono, J. B.; Asnar, Elyana; Rahayu, Retno Puji; Purwanto, Joko Agus; Puspaningsih, Ni Nyoman Tri; Kuntoro, Kuntoro; Harjanto, Harjanto J. M.; Putra, Suhartono Taat
Journal of Dentistry Indonesia Vol 16, No 2 (2009): August
Publisher : Faculty of Dentistry, University of Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2754.761 KB) | DOI: 10.14693/jdi.v16i2.91

Abstract

Cell in the distress situation, denaturation of proteins may occur, and may also respond by expressing stress proteins. However, such homeostasis effort does not always succeed and even may lead to disease, including cancer. In distress situation also ensue much protein misfolding. Objective: This research were to explain the role of heat shock protein 40 (Hsp40) and Hsp70 in pathogenesis of occurred oral squamous cell carcinoma (OSCC) patient which realized human papilloma virus (HPV) infection. Material and Method: Tissue biopsy frozen section were taken from BOSC and OSCC patients was cut into three part. Parrafin blocks were made from cutting I, which was subsequently stains with HE to ascertain the type of neoplasm. Cutting II was subjected to DNA isolation. The DNA isolation results were subjected to PCR to amplify L1-HPV gene for fixed the HPV stressoor. Protein isolation was treated from Cutting III, folloewd with Blottdot test by using antibody monoclonal anti Hsp40 and Hsp70 and continued with measurement using densitometer to find the concentration of Hsp40 and Hsp70. The collected data were analyzed with F Test (Manova) and discriminant analysis. Result: This experiment showed the differences in concentration of Hsp40 (p<=0,070) and Hsp70 (p<=0,006) between beningn oral squamous cell (BOSC) and OSCC patients which realized HPV infection. Conclusion: This experiment proved that OSCC patients which realized HPV infection indicated an up regulated of Hsp70 concentration, so that there was occurs misfolding of the proteins cell. The misfolding was ensue obstacle of apoptosis and to raise cell proliferation which to storm carcinogenesis. An up regulated of Hsp40 was role as co-chaperone.DOI: 10.14693/jdi.v16i2.91 
The effect of nickel as a nickel chromium restoration corrosion product on gingival fibroblast through analysis of BCl-2 Soesetijo, FX Ady; Rukmo, Mandojo
Dental Journal (Majalah Kedokteran Gigi) Vol 45, No 4 (2012): (December 2012)
Publisher : Faculty of Dental Medicine, Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (846.239 KB) | DOI: 10.20473/j.djmkg.v45.i4.p202-207

Abstract

Background: Restoration of NiCr may undergo corrosion process in artificial saliva. Corrosion product is soluble Ni substances in salivary electrolytes. Ni2+ may freely enter the cells through passive transport DMT-1. Ni2+ in the cell causes initiation of the ROS formation,which subsequently can conduct the redoxs reactions leading to DNA damage. The damage DNA affects the genetic expression, especially bcl-2, and even triggers apoptosis. Purpose: The aim of this study was to reveal the mechanism of Ni toxicity as a corrosion product of NiCr restoration on gingival fibroblasts through expression analysis of Bcl-2. Methods: Cells with a density of 105 planted on each coverslip in 72 wells to the treatment group and 24 wells to the control group (24 hours incubation). In the treatment groups, each well exposed with 20 μL artificial saliva containing Ni concentration results immerse each restoration, whereas the control group was exposed to 20 μL artificial saliva (incubation 1, 3, and 7 days). The data collected were subsequently analyzed using two-ways ANOVA, followed by one-way ANOVA. Comparing between experimental groups after one-way ANOVA was conducted using Fisher’s LSD. Whereas, the calculation and documentation of Bcl-2 expression was performed camera of Olympus Microscope BX-50 Japan. Results: Statistical analysis of two-ways ANOVA showed the presence of interaction between the increasing Ni concentration and exposure duration on the expression of Bcl-2 gingival fibroblasts (p=0.021<a=0.05). Conclusion: It can be concluded that the higher concentration of Ni exposed to gingival fibroblasts, and the longer incubation time will decreased Bcl-2 expression.Latar belakang: Restorasi NiCr dapat mengalami proses korosi di dalam saliva artificial. Produk korosi yang dihasilkan adalah substansi Ni yang terlarut di dalam elektrolit saliva. Ni2+ bebas dapat memasuki sel (fibroblas gingiva) melalui transport pasif DMT-1. Ni2+ di dalam sel menginisiasi pembentukan ROS, yang selanjutnya dapat menjalankan reaksi redoks dan dapat menimbulkan kerusakan DNA. DNA yang rusak mempengaruhi ekspresi genetik, terutama Bcl-2 dan bahkan dapat memicu apoptosis. Tujuan: Tujuan penelitian ini adalah untuk mengungkap mekanisme toksisitas Ni sebagai suatu produk korosi restorasi NiCr pada fibroblas gingiva melalui analisis ekspresi Bcl-2. Metode: Sel dengan kepadatan 105 ditanam pada tiap-tiap coverslip di dalam 72 well untuk kelompok perlakuan dan ditanam pada tiap-tiap coverslip di dalam 24 well untuk kelompok kontrol (inkubasi selama 24 jam). Pada kelompok perlakuan, masing-masing well dipapar dengan 20 μL saliva artificial yang mengandung konsentrasi Ni hasil perendaman tiap-tiap restorasi, sedangkan pada kelompok kontrol dipapar 20 μL saliva artificial (inkubasi 1,3 dan 7 hari). Data yang terkumpul selanjutnya dianalisis menggunakan ANOVA dua arah dan ANOVA satu arah. Perbandingan antar kelompok eksperimental setelah analisis ANOVA satu arah menggunakan uji Fisher’s LSD. Penghitungan jumlah sel yang mengekspresikan Bcl-2, kemudian dilanjutkan dengan dokumentasi dengan menggunakan kamera Olympus Microscope BX-50 Japan. Hasil: Analisis statistik ANOVA dua arah menunjukkan adanya interaksi antara peningkatan konsentrasi Ni dan lama paparan terhadap ekspresi Bcl-2 fibroblas gingiva > (p = 0,021 < á = 0,05). Kesimpulan: Dapat disimpulkan bahwa semakin tinggi konsentrasi paparan Ni pada fibroblas gingiva dan semakin lama masa inkubasi, maka akan menurunkan ekspresi Bcl-2.
The role of Hsp0, CD-8 and IFN-γ in immunopathobiogenesis of periapical granuloma in dental caries Cilmiaty, Risya; Rukmo, Mandojo
Dental Journal (Majalah Kedokteran Gigi) Vol 47, No 1 (2014): (March 2014)
Publisher : Faculty of Dental Medicine, Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (605.351 KB) | DOI: 10.20473/j.djmkg.v47.i1.p7-12

Abstract

Background: The incidence of dental caries with periapical granulomas in Indonesia is quite high. However, the mechanism of the formation of periapical granulomas in dental caries caused by bacterial infection in immunopathobiogenesis cannot be explained completely. Thus, this explanation is necessary in order to be used as a basis for diagnostic, preventive and therapeutic measures. Purpose: This research was aimed to determine the role of Hsp60, CD-8 and IFN-γ in immunopatobiogenesis of periapical granuloma in dental caries. Methods: This research was an analytic observational study with cross sectional approach. Samples of this research were 36 teeth of patients with dental caries, consisting of 18 caries teeth with periapical granulomas and 18 caries teeth without periapical granulomas. The variables observed in this research were Hsp60, CD-8 and IFN-γ. Measurements were conducted by using immunohistochemical methods on periapical tissue. Results: The mean of Hsp60, CD-8 and IFN-γ in granuloma group was significantly higher than those in non granuloma group (p<0.05). The positive role of IFN-γ on the incidence of granulomas appeared to be more prominent. Conclusion: The study suggested that in immunopathobiogenesis of periapical granuloma in dental caries, Hsp60, CD-8 and IFN-γ played important roles, but the role of IFN-γ was found to be more prominent.Latar belakang: Angka kejadian gigi karies dengan granuloma periapikal di Indonesia cukup tinggi, Namun mekanisme terbentuknya granuloma periapikal pada gigi karies yang disebabkan oleh infeksi bakteri secara imunopatobiogenesis belum dapat dijelaskan secara tuntas. Adanya penjelasan ini diperlukan agar dapat digunakan sebagai dasar pengembangan diagnosis, langkah preventif dan terapinya. Tujuan: Penelitian ini bertujuan untuk mengetahui peran Hsp60, CD-8 dan IFN-γ dalam immunopatobiogenesis dari granuloma periapikal karies gigi. Metode: Penelitian ini merupakan penelitian observasional analitik dengan pendekatan cross sectional. Sampel dari penelitian ini adalah 36 gigi pasien dengan karies, yang terdiri dari 18 karies gigi dengan granuloma periapikal dan 18 karies gigi tanpa granuloma periapikal. Variabel yang diamati adalah Hsp60, CD-8 dan IFN-γ. Pengukuran dilakukan dengan menggunakan metode imunohistokimia pada jaringan periapikal. Hasil: Rerata Hsp60, CD-8 dan IFN-γ pada kelompok granuloma secara signifikan lebih tinggi dibanding kelompok non granuloma (p <0,05). Peran positif dari IFN-γ terhadap kejadian granuloma tampaknya lebih menonjol. Simpulan: Studi ini menunjukkan bahwa dalam imunopatobiogenesis dari granuloma periapikal karies gigi, Hsp60, CD-8 dan IFN-γ memainkan peran penting, tetapi peran IFN-γ ditemukan lebih menonjol.
Prevotella intermedia and Porphyromonas gingivalis in dental caries with periapical granuloma Cilmiaty, Risya; Prasetyo, Afiono Agung; Zaini, Khilyat Ulin Nur; Rukmo, Mandojo; Putra, Suhartono Taat; Asmara, Widya
Dental Journal (Majalah Kedokteran Gigi) Vol 46, No 4 (2013): (December 2013)
Publisher : Faculty of Dental Medicine, Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (492.71 KB) | DOI: 10.20473/j.djmkg.v46.i4.p213-217

Abstract

Background: Dental caries with necrotic pulp is a multifactorial disease that attacks enamel involving tooth pulp. The anaerobic bacteria infection in the pulp chamber could induce the formation of periapical granuloma. However, the presence of the most frequently anaerobic bacteria identified in apical periodontitis, Porphyromonas gingivalis and Prevotella intermedia, in periapical granuloma have not been confirmed. Purpose: The aims of study were to determine the presence of Porphyromonas gingivalis and Prevotella intermedia in dental caries with necrotic pulp and to determine its relation to periapical granuloma. Methods: Thirty-six patients of dental caries with necrotic pulp in Dr. Moewardi General Hospital in Surakarta, Indonesia were involved and classified into two groups, the group of patients with periapical granuloma and the group of patients without periapical granuloma. The caries tooth was extracted, and the chronic periapical tissue was swabbed and cultured on blood agar medium in anaerobic condition. The bacterial DNA was extracted from the positive cultures and subjected for Polymerase Chain Reaction (PCR). Results: Periapical granuloma was more likely found in women (OR 5.5, 95% CI=1.277-23.693; RR 2.5, 95% CI= 1.025-6.100). Black colonies bacteria were associated with periapical granuloma (OR 2.2, 95% CI=0.517-9.594; RR 1.5, 95% CI=0.655-3.623). Porphyromonas gingivalis and Prevotella intermedia were detected in group with or without periapical granuloma, however, only Prevotella intermedia was associated with periapical granuloma (OR 1.6, 95% CI=0.418-5.903; RR 1.3, 95% CI=0.653-2.393). Conclusion: The presence of Porphyromonas gingivalis and Prevotella intermedia in periapical granuloma were confirmed, however, only Prevotella intermedia were associated with periapical granuloma.Latar belakang: Karies gigi dengan pulpa nekrosis adalah penyakit multifaktorial yang menyerang enamel hingga ruang pulpa gigi. Infeksi bakteri anaerob di pulpa nekrosis dapat menginduksi pembentukan granuloma periapikal. Namun, keberadaan bakteri anaerob yang paling banyak ditemukan di periodontitis apikal, Porphyromonas gingivalis dan Prevotella intermedia, di granuloma periapikal masih perlu diteliti . Tujuan: Penelitian ini bertujuan meneliti keberadaan bakteri Porphyromonas gingivalis dan Prevotella intermedia, di karies gigi dengan pulpa nekrosis dan menganalisis kaitannya dengan granuloma periapikal. Metode: Tiga puluh enam pasien karies gigi dengan pulpa nekrosis di Rumah Sakit Umum Dr. Moewardi di Surakarta Indonesia dilibatkan dan diklasifikasikan dalam dua kelompok yaitu kelompok pasien dengan granuloma periapikal dan kelompok pasien tanpa granuloma periapikal. Gigi karies diekstraksi dan jaringan periapikal kronis diusap dan dikultur di media agar darah dalam kondisi anaerob. DNA bakteri diekstrak dari kultur yang positif dan dilakukan pemeriksaan dengan Polymerase Chain Reaction (PCR). Hasil: Granuloma periapikal lebih banyak ditemukan pada wanita (OR 5,5, 95% CI= 1,277-23,693; RR 2,5, 95% CI= 1,025-6,100). Koloni bakteri berwarna hitam diasosiasikan dengan granuloma periapikal (OR 2,2, 95% CI= 0,517-9,594; RR 1,5, 95% CI= 0,655-3,623). Porphyromonas gingivalis dan Prevotella intermedia terdeteksi di jaringan karies dental dengan atau tanpa granuloma periapikal, namun hanya Prevotella intermedia yang diasosiasikan dengan granuloma periapikal (OR 1,6, 95% CI= 0,418-5,903; RR 1,3, 95% CI= 0,653-2,393). Simpulan: Porphyromonas gingivalis dan Prevotella intermedia ditemukan di granuloma periapikal, namun hanya Prevotella intermedia yang terkait langsung dengan granuloma periapikal.
STIMULASI EKSTRAK PROPOLIS PADA ODONTOBLAST LIKE CELLS YANG DIINDUKSI LACTOBACILLUS ACIDOPHILUS INAKTIF TERHADAP EKSPRESI TLR2 DAN TNFα Widjiastuti, Ira; Irnatari, Nadia; Rukmo, Mandojo
ODONTO : Dental Journal Vol 4, No 2 (2017): December 2017
Publisher : Fakultas Kedokteran Gigi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (0.036 KB) | DOI: 10.30659/odj.4.2.85-93

Abstract

Background: Lactobacillus acidophilus, Gram-positive bacterias that enterthe dentinal tissue during the carious process are suspected to influence the immune response in human dental pulp. Odontoblasts situated at the pulp dentin interface are the frst cells encountered by these bacteria and have an important role in this response. Lipoteichoic acid (LTA), a wall component of Gram-positive bacteria, triggered the activation of the odontoblasts. LTA upregulated the expression of its own receptor TLR2, as well as the production of proinflammatory cytokineTNFα. Propolis is a resinous material that holds a great potential as an antiinflammatory agent. Present studies have shown that propolis has a reduction effect towards the proinflammatory cytokines expression and favor pulp healing.Purpose: To reveal the moleculer mechanism of propolis stimulation onodontoblast like cells, induced by inactive Lactobacillus acidophilus.Methods: This review was presented in odontoblasts like cells culture induced by inactive Lactobacillus acidophilus and exposed to propolis extract. Pulp cell culture isolated from human impacted thirds molar that has been extracted. Observation and measurement the expression of TLR2 and TNFα was processed by using immunocytochemistry (ICC) technic.Result: Data analysis with ANOVA test, a signifcant difference in every group(p<0,05) was present. The expression of TLR2 and TNFα were shown at lowlevel percentation on odontoblast like cells, induced by Lactobacillus acidophilus and propolis extract stimulation.Conclusion: Propolis extract stimulations lower the TLR2 and TNFα expression on odontoblast like cells, induced by inactive Lactobacillus acidophilus