Ahmad Faried
Department of Neurosurgery, Faculty of Medicine, Universitas Padjdajaran-Dr. Hasan Sadikin General Hospital

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Akt–the Mammalian Target of Rapamycin (mTOR) Pathway Inhibition Increases Cervical Cancer Cell Chemosensitivity to Active Form of Irinotecan (SN-38) Septiani, Leri; Hidayat, Yudi Mulyana; Effendi, Yusuf Sulaeman; Djuwantono, Tono; Luftimas, Dimas Erlangga; Faried, Ahmad
International Journal of Integrated Health Sciences Vol 1, No 1 (2013)
Publisher : International Journal of Integrated Health Sciences

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Objective: To investigate the molecular pathway of the cytotoxic effect of SN-38 in human cervical cancer cell lines.Methods: Two human cervical cancer cell lines were treated with various concentrations of irinotecan for 24–72 hours and the sensitivity was analysed using the MTT assay. Apoptosis was further observed through microscopic examinations. The protein expression was determined using Western blot analysis.  Results: CaSki cells demonstrated the highest sensitivity to SN-38, whereas HeLa cells showed the lowest. In cervical cancer cells, SN-38 induced apoptosis through an intrinsic- and extrinsic-pathways. In addition, we showed that SN-38 downregulated the phosphorylation of Akt-mTOR pathways in CaSki cells, but not in HeLa cells. Interestingly, in HeLa cells, which were more suggestive of a resistant phenotype, pre-treatment with LY294002 and rapamycin inhibited activation of Akt-mTOR signaling and significantly enhanced the sensitivity of HeLa cells to SN-38. Conclusions: Irinotecan exerts its anti-neoplastic effects on cervical cancer cells by inducing apoptosis through caspase-cascade. Inhibition of Akt-mTOR, LY294002 and rapamycin, which is targeted to Akt-mTOR pathways, may sensitize irinotecan-resistant cervical cancer cells.Keywords: Akt-mTOR pathways anti-neoplastic drugs, cervix cancer cells, LY294002, rapamycin DOI: 10.15850/ijihs.v1n1.103
Incidence of Cavum Septum Pellucidum and Cavum Vergae in Dr. Hasan Sadikin General Hospital, Bandung, Indonesia Faried, Ahmad; Soeprajogo, Adolf Setiabudi; Melia, Regina; Arifin, Muhammad Zafrullah
International Journal of Integrated Health Sciences Vol 5, No 1 (2017)
Publisher : International Journal of Integrated Health Sciences

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Objective: To describe the cavum septum pellucidum (CSP) and cavum vergae (CV) findings. Methods: Thirteen samples were recruited in the study. The study was conducted at the Department of Neurosurgery, Dr. Hasan Sadikin Hospital, Bandung, Indonesia in the period of 2015–2016. Thirteen samples were recruited for the study. Cavum septum pellucidum and CV spaces are relatively rare. During neurology and neurosurgery examination of patients with head computed tomography (CT) scan and magnetic resonance imaging (MRI), CSP and CV were discovered accidentally. The incidence of these unique spaces reported from many countries, but have never been reported from Indonesia.Results: This is the first-time reported incidental finding of CSP and CV from Indonesia, 13 cases in one-year period. Since the presence of CSP and CV is usually asymptomatic, clinician seem don’t really care to put it in their report.Conclusions: The presence of CSP and CV as a common incidental finding can be more revealed in our country in years to come and hopefully can be more studied in term of anatomical landmark on neurosurgical field.Keywords: Cavum septum pellucidum, cavum vergae, incidental finding DOI: 10.15850/ijihs.v5n1.964
MODIFIKASI METODE ISOLASI SEL ENDOTEL PEMBULUH DARAH OTAK (EPDO) TIKUS: TEKNIK DASAR KULTUR SEL PRIMER DI BIDANG NEUROSAINS Faried, Ahmad; Zafrullah Arifin, Muhammad; Sutiono, Agung Budi; Halim, Danny; Djuwantono, Tono; Achmad, Tri Hanggono
Majalah Kedokteran Bandung Vol 42, No 4
Publisher : Faculty of Medicine, Universitas Padjadjaran

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Metode konvensional isolasi sel endotel pembuluh darah otak (EPDO) masih tergolong sulit, sehingga upaya mendapatkan populasi murni sel ini adalah tantangan. Pada penelitian ini dilakukan isolasi endotel dari tikus Wistar dan mencit C57/Bl6, berdasarkan protokol the care and use of laboratory animals, Universitas Gunma, Jepang. Modifikasi metode isolasi adalah menggunakan gradasi bovine serum albumin (BSA), bukan Dextran-70 yang umumnya dipakai, untuk memisahkan sel EPDO yang bersatu menjadi sel EPDO tunggal. Penelitian ini dilakukan di laboratorium sel kultur, Universitas Padjadjaran bekerjasama dengan Universitas Gunma, Jepang, Januari 2008?Juni 2009. Uji hasil isolasi dan karakteristik sel EPDO dilakukan dengan teknik imunofloresen. Ekspresi tight junction ZO-1, menunjukkan sel EPDO membentuk selapis sel utuh, rapat, tidak bertumpuk dan kompak, sesuai dengan karakteristik dinding EPDO. Fenotip sel EPDO dikonfirmasi dengan acethylated LDL, faktor von Willebrand dan CD31. Penghancuran kapiler dengan collagenase/dispase masih menghasilkan populasi sel yang terkontaminasi perisit. Kontaminasi dimurnikan dengan menggunakan puromycin, tingkat pemurnian sel EPDO mencapai 98,3%. Simpulan, teknik modifikasi berhasil mengisolasi sel EPDO tikus dan mencit, tanpa melakukan intervensi genetik. Puromycin dapat digunakan untuk memurnikan sel EPDO. [MKB. 2010;42(4):161?8].Kata kunci: Metode modifikasi isolasi sel EPDO, pembuluh sawar otak, teknik pemurnian Isolation Modified-Method of Mouse-Brain Microvessel Endothelial Cells: Primary Cell Culture Technique in NeuroscienceIsolation method to obtain pure BMVECs is hard to be done consistently and remains a challenge. In this study, we isolated BMVECs from Wistar rat and C57/Bl6 mouse from Japan SLC. All procedures performed according to guidelines for the care and use of laboratory animals of Gunma University, Japan. The modification of isolation method was using bovine serum albumin (BSA) gradation, not Dextran-70 in which generally used, to separate clusters of BMVECs into single cell. This study was done at Universitas Padjadjaran, in colaboration with Gunma University, Japan, January 2008?June 2009. Further,characteristic and purification results were proven by imunofluorescene staining. The results showed that staining of tight junction, ZO-1, formed a monolayer, tightly packed, non-overlapping and contact-inhibited BMVECs, as expected for a vessel wall endothelial. ECs phenotype confirmed by acethylated LDL, von Willebrand and CD31. The digestion of capillaries generated contaminating pericytes. Contamination was purified using puromycin and the results considered satisfactory (98.3%). In conclusion, our modification procedure allows the isolation of primary rat and mouse BMVECs, which form an endothelial-like monolayer in few days. Puromycin can be used for purification of primary rat and mouse BMVECs. [MKB. 2010;42(4):161?8].Key words: Blood brain barrier, isolation modified-method of mouse-BMVECs, purification methods DOI: http://dx.doi.org/10.15395/mkb.v42n4.30
COMPARISON OF HISTOLOGICAL CHARACTERISTICS OF DRIED AND FRESH AMNION MEMBRANES AND DURA MATER IN NON-HUMAN PRIMATE (MACACA FASCICULARIS) Indah, Astrina Rosaria; Bolly, Hendrikus Masang B.; Faried, Ahmad; Arifin, Muhammad Zafrullah; Achadiyani, Achadiyani; Wirakusumah, Firman Fuad
Majalah Kedokteran Bandung Vol 51, No 1 (2019)
Publisher : Faculty of Medicine, Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (303.785 KB) | DOI: 10.15395/mkb.v51n1.1651

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This study aimed to characterize the histological properties of dry-lyophilized amniotic membrane, fresh amniotic membrane (AM), and duramater membrane in search for a biologically-derived material suitable for meninges surface reconstruction. This descriptive study was conducted at the Unit-3 Laboratory of Animal Test of PT. Bio Farma (Persero), Bandung and Cell Biology Laboratory of the Faculty of Medicine, Universitas Padjadjaran Bandung. This study was conducted from 2018-2019. Fresh Macacafascicularis placenta from healthy donors,classified as specific pathogen-free for TB, SIV, SV40, Polio type 1,2,3, Foamy virus and Herpes B virus, were obtained from selected caesarean sections.The harvested dried and fresh AM and duramater membrane were stained with hematoxylin-eosin and prepared for characterization. Histological examination of dry-lyophilized and fresh AM showed similar results. Histologically, AM is represented by a single layer of metabolically-active cuboidal to columnar epithelium with microvilli firmly attached to a basement membrane and an avascular and relatively sparsely populated stroma. Meninges layers consists of 3 layers: duramater, arachnoid membrane, and piamater. Most of these cells have the same characteristics as fibroblasts, including long organelles and nuclei with various levels of fibril formation. The histological study of amniotic membrane and duramater membrane shows comparable results. The AM is a biologically-derived material suitable for meninges surface reconstruction since its histological structure is somewhat similar to that of the duramater. Its structure is ideal for replacing duramater since it has several characteristics, such as having hygroscopic properties, good biocompatibility, relatively easy to apply, and inexpensive. Key words: Dried and fresh amnion membranes, duramater membranes, non-human primate Karakteristik Histologis Membran Amnion Jenis Kering dan Segar dengan Membran Duramater pada Primata Non-Human Macaca fascicularisPenelitian ini bertujuan mengetahui karakteristik histologis membran amnion kering yang diliofilisasi, membran amnion segar, dan duramater, dalam rangka mencari bahan biologis yang cocok untuk rekonstruksi permukaan meninges. Penelitian deskriptif dilakukan di Laboratorium Hewan Uji PT. Bio Farma dan Laboratorium Biologi Sel FK Universitas Padjadjaran periode 2018-2019. Plasenta Primata non-human Macaca fascicularis segar dari donor sehat, yang bebas dari pathogen spesifik TB, SIV, SV40, Polio tipe 1, 2, 3, virus Foamy dan virus Herpes B, diperoleh dari seksio sesarea. Kemudian, dilakukan pewarnaan dengan hematoxylin-eosin untuk membran amnion kering dan segar, serta membran duramater untuk mengetahui karakterisasi histologisnya. Pemeriksaan histologis membran amnion kering-yang aktif bermetabolisme hingga kolumnar dengan mikrovili; melekat kuat pada membran basal dan stroma yang avaskular dan relatif jarang. Lapisan Meninges terdiri dari 3 lapisan: duramater, arachnoid dan piamater. Sebagian besar sel-sel ini memiliki karakteristik yang sama dengan fibroblas. Studi histologis membran amnion dan membran duramater memiliki struktur yang relatif serupa. Membran amnion adalah material yang secara biologis cocok untuk rekonstruksi permukaan meningen, karena struktur histologinya agak mirip dengan duramater. Oleh karena itu secara struktur, membran amnion ideal untuk menggantikan duramater karena memiliki beberapa karakteristik seperti sifat higroskopis, biokompatibilitas baik, mudah diterapkan, dan murah.Kata kunci: Membran amnion segar dan kering, membran duramater, primate non-human
CRANIAL CHARACTERISTICS, MAXILLOFACIAL, AND SKULL BASE STRUCTURE OF NON-HUMAN PRIMATE (ADULT MACACA FASCICULARIS): A PRELIMINARY STUDY FOR CRANIAL CRANIOTOMY MODEL Bolly, Hendrikus Masang Ban; Indah, Astrina Rosaria; Faried, Ahmad; Noverina, Rachmawati; Arifin, Muhammad Zafrullah; Wirakusumah, Firman Fuad
Majalah Kedokteran Bandung Vol 51, No 2 (2019)
Publisher : Faculty of Medicine, Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15395/mkb.v51n2.1650

Abstract

The use of non-human primate (NHP) animal models, which anatomical and physiological similarities to human, is important for the sake of learning the anatomical properties. This study aimed to characterize the cranial, maxillofacial, and skull base structures of non-human primates as a potential model suitable for a cranial craniotomy model. Adult Macaca fascicularis (MF) skulls classified asspecificpathogen-free for TB, SIV, SV40, Polio, Foamy virus and Herpes B virus from PT Bio Farma (Persero) Animal Lab. Library were used to represent the anatomical model.The open access database from Mammalian Crania Photographic Archive 2nd Edition (MCPA2) was used for cranial characterization analysis. This study was performed at the Department of Neurosurgery, Dr. Hasan Sadikin General Hospital and the Animal Laboratory of PT. Biofarma (Persero) from November 2018 to January 2019. The skull base structures were assessed for its analogies with its human counterpart. Comparison by t-student analysis between male and female skulls shows the mean male cranial length (CL) is greater than in female (116.68 vs 102.50 mm), with p=0.000; the mean male bizygomatic width (BZB) is greater than in female (79.30 vs 69.70 mm) with p=0.001; the mean male posterior cranial breadth (CBN) is greater than in female (63.40 vs 58.79 mm) with p=0.019; and the mean male cranial base length (CBL) is greater than in female (63.32 vs 57.55 mm), with p=0.001. The skull of MF is suitable for Neurosurgery and Neuroscience study since the MF cranial characterization and structure are similar to that of human. Its structure is ideal for performing craniotomy since it has several characteristics such as cranial vault, maxillofacial structure with huge temporal muscle, and skull base structure.  Karakteristik Kranium, Maksilofasial, dan Struktur Dasar Tengkorak Non-human Primate Macaca fascicularis dewasa: Studi Pendahuluan untuk Model Craiotomi Kranium Penggunaan hewan model berasal dari primata bukan-manusia (NHP), dimana secara anatomis dan fisiologis mirip dengan manusia, sangat penting untuk dapat mempelajari struktur anatominya. Penelitian ini bertujuan untuk karakterisasi struktur kranium, maksilofasial dan dasar tengkorak primata (Non-human Primate) yang berpotensi sebagai model penelitian kraniotomi. Tengkorak dewasa Macaca fascicularis (MF) dari  Laboratorium Hewan PT Biofarma (Persero), bebas infeksi TBC, SIV, SV40, Polio, Foamy Virus,  dan Herpes B digunakan sebagai model anatomi. Basis data terbuka Mammalian Cranial Photographic Archive 2nd Edition (MCPA2) digunakan untuk analisis kranium. Penelitian dilakukan di Departmen Bedah Saraf RSHS dan Laboratorium Hewan  PT. Biofarma  pada November 2018?Januari 2019. Struktur tengkorak MF dipelajari analogi seperti pada struktur tengkorak manusia. Analisis uji-t tengkorak jantan dan betina menunjukan rerata panjang kranial (Cranial length, CL) jantan lebih panjang dibanding betina (116.68 vs 102.50 mm, p=0.000); rerata bizygomatic width (BZB) jantan lebih panjang dibanding betina (79.30 vs 69.70 mm, p=0.001); rerata posterior cranial breadth (CBN) jantan lebih panjang dibanding betina (63.40 vs 58.79 mm, p=0.019);dan rerata cranial base length (CBL) jantan lebih panjang dibanding betina (63.32 vs57.55 mm, p=0.001). Tengkorak MF sesuai untuk berbagai penelitian bidang bedah saraf dan neurosains. Karakterisasi kranial dan strukturnya sama dengan yang dimiliki manusia. Struktur kranium MF merupakan model ideal untuk kraniotomi berdasar karakteristik tulang tengkorak, otot temporal besar pada maksilofasial, dan struktur dasar tengkorak.