Blar i Bergen Open Research Archive på forfatter "Sapkota, Dipak"
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Accessing the prior knowledge and teaching a heterogeneous class of dental hygienist
Sapkota, Dipak (UPED-skrift, Working paper, 2017) -
Adenoviral Mediated Expression of BMP2 by Bone Marrow Stromal Cells cultured in 3D Copolymer Scaffolds Enhances Bone Formation
Sharma, Sunita; Sapkota, Dipak; Xue, Ying; Sun, Yang; Finne-Wistrand, Anna; Bruland, Ove; Mustafa, Kamal Babikeir Eln (Peer reviewed; Journal article, 2016-01-25)Selection of appropriate osteoinductive growth factors, suitable delivery method and proper supportive scaffold are critical for a successful outcome in bone tissue engineering using bone marrow stromal cells (BMSC). This ... -
Adenoviral mediated mono delivery of BMP2 is superior to the combined delivery of BMP2 and VEGFA in bone regeneration in a critical-sized rat calvarial bone defect
Sharma, Sunita; Xue, Ying; Xing, Zhe; Yassin, Mohammed Ahmed; Sun, Yang; Lorens, James; Finne-Wistrand, Anna; Sapkota, Dipak; Mustafa, Kamal Babikeir Eln (Peer reviewed; Journal article, 2019-04-11)Apart from osteogenesis, neovascularization of the defect area is an important determinant for successful bone healing. Accordingly, several studies have employed the combined delivery of VEGFA and BMP2 for bone regeneration. ... -
Benefit from B-Lymphocyte Depletion Using the Anti- CD20 Antibody Rituximab in Chronic Fatigue Syndrome. A Double-Blind and Placebo-Controlled Study
Fluge, Øystein; Bruland, Ove; Risa, Kristin; Storstein, Anette; Kristoffersen, Einar K.; Sapkota, Dipak; Næss, Halvor; Dahl, Olav; Nyland, Harald; Mella, Olav (Peer reviewed; Journal article, 2011-10-19)Background: Chronic fatigue syndrome (CFS) is a disease of unknown aetiology. Major CFS symptom relief during cancer chemotherapy in a patient with synchronous CFS and lymphoma spurred a pilot study of B-lymphocyte depletion ... -
Combined in situ hybridization and immunohistochemistry on archival tissues reveals stromal microRNA-204 as prognostic biomarker for oral squamous cell carcinoma
Rajthala, Saroj; Dongre, Harsh; Parajuli, Himalaya; Min, Anjie; Nginamau, Elisabeth Sivy; Kvalheim, Arild; Lybak, Stein; Sapkota, Dipak; Johannessen, Anne Christine; Costea, Daniela Elena (Journal article; Peer reviewed, 2021)Micro-RNAs (miRs) are emerging as important players in carcinogenesis. Their stromal expression has been less investigated in part due to lack of methods to accurately differentiate between tumor compartments. This study ... -
Combined loss of expression of involucrin and cytokeratin 13 is associated with poor prognosis in squamous cell carcinoma of mobile tongue
Pandey, Sushma; Søland, Tine Merete; Bjerkli, Inger-Heidi; Sand, Lars Peter; Petersen, Fernanda Cristina; Costea, Daniela Elena; Senguven, Burcu; Sapkota, Dipak (Journal article; Peer reviewed, 2021)Background This study aimed to evaluate the prognostic significance of expression levels of involucrin (IVL), cytokeratin (CK)-10 and -13 at different intratumor sites (tumor center and invading area) of oral tongue ... -
Delivery of VEGFA in bone marrow stromal cells seeded in copolymer scaffold enhances angiogenesis, but is inadequate for osteogenesis as compared with the dual delivery of VEGFA and BMP2 in a subcutaneous mouse model
Sharma, Sunita; Sapkota, Dipak; Xue, Ying; Rajthala, Saroj; Yassin, Mohammed Ahmed Alamin Yousif; Finne-Wistrand, Anna; Mustafa, Kamal Babikeir Eln (Peer reviewed; Journal article, 2018-01-31)Background: In bone tissue engineering (BTE), extensive research into vascular endothelial growth factor A (VEGFA)-mediated angiogenesis has yielded inconsistent results. The aim of this study was to investigate the influence ... -
Helicobacter pylori was not detected in oral squamous cell carcinomas from cohorts of Norwegian and Nepalese patients
Pandey, Sushma; Follin-Arbelet, Benoit; Bahadur Pun, Chin; K. Gautam, Dej; Johannessen, Anne Christine; Petersen, Fernanda Cristina; Costea, Daniela Elena; Sapkota, Dipak (Journal article; Peer reviewed, 2020)Helicobacter pylori (HP) infection is an established causative agent for gastric cancer. Although the oral cavity is a part of the gastrointestinal system, the presence and possible causative role of HP in oral squamous ... -
Knowledge, opinions, and practices related to oral cancer prevention and oral mucosal examination among dentists in Moldova, Belarus and Armenia: a multi-country cross-sectional study
Golburean, Olga; Hagen, Maria Helene; Uncuta, Diana; Tighineanu, Marcela; Manrikyan, Gayane; Vardanian, Izabella; Andresen, Christoffer; Singh, Bhavdeep; Porosencova, Tatiana; Ivasiuc, Irina; Cheptanaru, Olga; Markaryan, Marina; Shakavets, Natalia; Sapkota, Dipak; Søland, Tine Merete; Costea, Daniela Elena; Özkaya, Ferda (Journal article; Peer reviewed, 2021)Introduction Moldova, Belarus, and Armenia are post-Soviet countries with a high rate of heavy smokers and a relatively high age-standardized incidence of oral cancer. However, to our knowledge, there is lack of available ... -
Loss of S100A14 expression at the tumor-invading front correlates with poor differentiation and worse prognosis in oral squamous cell carcinoma
Pandey, Sushma; Osman, Tarig Al-Hadi; Sharma, Sunita; Vallenari, Evan Michael; Shahdafar, Aboulghassem; Pun, Chin B.; Gautam, Dej K.; Uhlin-Hansen, Lars; Rikardsen, Oddveig G; Johannessen, Anne Christine; Costea, Daniela Elena; Sapkota, Dipak (Journal article; Peer reviewed, 2020)Background We previously showed a tumor‐suppressive function of S100A14 in oral squamous cell carcinoma (OSCC). This study aimed to examine the prognostic significance and differentiation‐related function of S100A14 in ... -
The Low Affinity Nerve Growth Factor Receptor p75NTR Identifies a Transient Stem Cell-Like State in Oral Squamous Cell Carcinoma Cells
Osman, Tarig Al-Hadi; Costea, Daniela Elena; Parajuli, Himalaya; Sapkota, Dipak; Johannessen, Anne Christine; Ahmed, Israa A. H. (Peer reviewed; Journal article, 2014-09-12)Background Although several markers have been used for enrichment of cells with stem cell-like properties in oral squamous cell carcinoma (OSCC), isolation of a pure subpopulation is still a challenging task. Normal oral ... -
MicroRNA-138 abates fibroblast motility with effect on invasion of adjacent cancer cells
Rajthala, Saroj; Parajuli, Himalaya; Dongre, Harsh Nitin; Ljøkjel, Borghild; Hoven, Kristin Marie; Kvalheim, Arild; Lybak, Stein; Neppelberg, Evelyn; Sapkota, Dipak; Johannessen, Anne Christine; Costea, Daniela Elena (Journal article; Peer reviewed, 2022-03-17)Background: Recent studies have shown aberrant expression of micro-RNAs in cancer-associated fibroblasts (CAFs). This study aimed to investigate miR-138 dysregulation in CAFs in oral squamous cell carcinoma (OSCC) and its ... -
MicroRNAs as important players and biomarkers in oral carcinogenesis
Min, Anjie; Zhu, Chao; Peng, Shuping; Rajthala, Saroj; Costea, Daniela Elena; Sapkota, Dipak (Peer reviewed; Journal article, 2015)Oral cancer, represented mainly by oral squamous cell carcinoma (OSCC), is the eighth most common type of human cancer worldwide. The number of new OSCC cases is increasing worldwide, especially in the low-income countries, ... -
Profiling and functional analysis of microRNA deregulation in cancer-associated fibroblasts in oral squamous cell carcinoma depicts an anti-invasive role of microRNA-204 via regulation of their motility
Rajthala, Saroj; Min, Anjie; Parajuli, Himalaya; Debnath, Kala Chand; Ljøkjel, Borghild; Hoven, Kristin Marie; Kvalheim, Arild; Lybak, Stein; Neppelberg, Evelyn; Vintermyr, Olav Karsten; Johannessen, Anne Christine; Sapkota, Dipak; Costea, Daniela Elena (Journal article; Peer reviewed, 2021-11-04)Background: Knowledge on the role of miR changes in tumor stroma for cancer progression is limited. This study aimed to investigate the role of miR dysregulation in cancer-associated fibroblasts (CAFs) in oral squamous ... -
Rapid adherence to collagen IV enriches for tumour initiating cells in oral cancer.
Liang, Xiao; Osman, Tarig Al-Hadi; Sapkota, Dipak; Neppelberg, Evelyn; Lybak, Stein; Liavaag, Per Gunnar; Johannessen, Anne Christine; Jacobsen, Hege Karine; Enger, Per Øyvind; Costea, Daniela Elena; Wang, Jian (Peer reviewed; Journal article, 2014-12)Background: Although several approaches for identification and isolation of carcinoma cells with tumour initiating properties have been established, enrichment of a population of pure and viable tumour-initiating cells ... -
S100 gene family members in oral squamous cell carcinomas (OSCCs): Functional characterization of S100A14 in proliferation and invasion of OSCC derived cells
Sapkota, Dipak (Doctoral thesis, 2011-01-21) -
S100A16 promotes differentiation and contributes to a less aggressive tumor phenotype in oral squamous cell carcinoma
Sapkota, Dipak; Bruland, Ove; Parajuli, Himalaya; Osman, Tarig Al-Hadi; Teh, Muy-Teck; Johannessen, Anne Christine; Costea, Daniela Elena (Peer reviewed; Journal article, 2015-09-09)Background: Altered expression of S100A16 has been reported in human cancers, but its biological role in tumorigenesis is not fully understood. This study aimed to investigate the clinical significance and functional role ... -
Targeted Next-Generation Sequencing of Cancer-Related Genes in a Norwegian Patient Cohort With Head and Neck Squamous Cell Carcinoma Reveals Novel Actionable Mutations and Correlations With Pathological Parameters
Dongre, Harsh N.; Haave, Hilde; Fromreide, Siren; Erland, Fredrik Atteraas; Moe, Svein Erik Emblem; Dhayalan, Sophia Manueldas; Riis, Rasmus Kopperud; Sapkota, Dipak; Costea, Daniela Elena; Aarstad, Hans Jørgen; Vintermyr, Olav Karsten (Journal article; Peer reviewed, 2021)Background: Targeted next-generation sequencing (NGS) is increasingly applied in clinical oncology to advance personalized treatment. Despite success in many other tumour types, use of targeted NGS panels for assisting ... -
Trends and clinicopathological characteristics of oral squamous cell carcinomas reported at a tertiary cancer hospital in Nepal during 1999 to 2009
Gajurel, Rashmi; Gautam, Dej Kumar; Pun, Chin Bahadur; Dhakal, Hari Prasad; Petrovski, Beata; Costea, Daniela Elena; Sapkota, Dipak (Journal article; Peer reviewed, 2020)Objective Reliable data describing the trends and clinicopathological characteristics of oral squamous cell carcinoma (OSCC) in the Nepalese population are very limited. The current study aimed to examine the demographics, ...