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Mehra R, Ray A, Das S, Biman Kusum Chowdhury, Singh Koshal S, Hora R, Kumari A, Kaur A, Quadri SF, Deb Roy A. Enablers and barriers to rotavirus vaccine coverage in Assam, India- A qualitative study. Vaccine X 2024; 18:100479. [PMID: 38559753 PMCID: PMC10979257 DOI: 10.1016/j.jvacx.2024.100479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 01/18/2024] [Accepted: 03/18/2024] [Indexed: 04/04/2024] Open
Abstract
Background Estimates suggest that 78,000 children died due to rotavirus gastroenteritis annually between 2011 and 2013 in India. The north eastern state of Assam reported 38.4% pediatric diarrheal admissions testing positive for rotavirus. Rotavirus vaccine (RVV) was introduced in Assam in 2017 following which the National Family Health Survey-5 (NFHS-5) (2019) revealed low RVV coverage in Assam with wide variation between the districts. the current study was conceptualized and undertaken to capture the enablers and barriers to RVV coverage in Assam. Methods Qualitative study conducted in 5 randomly selected districts in Assam. Participants (key informants) were recruited by purposive sampling at each level of the health system including healthcare officials, service providers and caregivers based on availability. Thirty-five in-depth interviews (IDIs) and five focus group discussions (FGDs) were conducted. Interviews were tape recorded and transcribed. Data was coded and analyzed using the thematic framework approach. Results Findings from the qualitative data collection were collated and analyzed under 7 identified themes. Difficult terrain, limited service provider availability and no catch-up training for new recruits were some of the barriers to RVV coverage. In contrast, Information, Education & Communication (IEC) in vernacular language, RVV safety profile, development partner support and adequate RVV supply were identified as some of the enablers of RVV coverage. Conclusion Few broad recommendations to overcome identified barriers include comprehensive inter-sectoral coordination, regular monitoring and frequent refresher training sessions. There is a need for a future study utilizing existing coverage data and larger sample size to triangulate the findings of this study.
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Affiliation(s)
| | - Arindam Ray
- Bill and Melinda Gates Foundation, New Delhi, India
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Kumar U, Garg N, Vashisht R, Kumari A, Kaur CK, Rajput A. Buccal versus buccal palatal infiltration for pulpal anesthesia using 2% lidocaine and 4% articaine: A randomized controlled trial. J Oral Biol Craniofac Res 2024; 14:205-210. [PMID: 38445050 PMCID: PMC10912647 DOI: 10.1016/j.jobcr.2024.02.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Revised: 02/01/2024] [Accepted: 02/15/2024] [Indexed: 03/07/2024] Open
Abstract
Background The inability in achieving complete pulpal anesthesia with standard buccal infiltration especially in cases with SIP used for maxillary teeth. The study aimed to compare the anesthetic efficacy of buccal and buccal plus palatal infiltration technique using 2% lidocaine and 4% articaine in permanent maxillary first molars with the diagnosis of symptomatic irreversible pulpitis (SIP). Material and method One hundred and twenty-three patients with clinical diagnosis of SIP, aged 18-50 years were randomly allocated to three treatment groups (N = 41). Group 1(BIL): Buccal infiltration technique using 2% lidocaine with 1:80,000 adrenaline. Group 2(BPIL): combination of buccal plus palatal infiltration using 2% Lidocaine with 1:80,000 adrenaline. Group 3(BIA): Buccal infiltration using 4% articaine with 1:100,000 adrenaline. Pain intensity of patients were recorded before and after the administration of local anesthesia during endodontic procedure that is during caries removal, access preparation and pulp removal using Heft-Parker Visual Analog Scale (HP-VAS). Success was defined by "no pain (0 mm)" or "mild pain (0-54 mm)" during endodontic procedure. The anesthetic efficacy rates were analyzed using chi-square tests, age differences using one-way ANOVA. Results The final analysis included total of 117 patients. Higher success was observed in group II (85%) in comparison to group I (69%) and group III (74%), but the difference was statistically nonsignificant (p > 0.05). Our results demonstrated a nonsignificant difference between genders in all three groups (p > 0.05). Conclusion The use of buccal plus palatal infiltration and 4% articaine can provide effective anesthesia as standard buccal infiltration and 2% lidocaine for patients with SIP in maxillary first molars.
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Affiliation(s)
- Umesh Kumar
- Oral Health Sciences Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, India, 160012
| | - Nikita Garg
- Oral Health Sciences Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, India, 160012
| | - Ruchi Vashisht
- Oral Health Sciences Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, India, 160012
| | - Amrita Kumari
- Oral Health Sciences Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, India, 160012
| | | | - Akhil Rajput
- Dr. BSA Medical college and hospital, Rohini, New delhi, India
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Kumari A, Vertii A. Perspective: "Current understanding of NADs dynamics and mechanisms of Disease". Gene 2024; 894:147960. [PMID: 37923094 DOI: 10.1016/j.gene.2023.147960] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 10/09/2023] [Accepted: 10/31/2023] [Indexed: 11/07/2023]
Abstract
Chromatin architecture is essential for gene regulation, and multiple levels of the 3D chromatin organization exhibit dynamic changes during organismal development and cell differentiation. Heterochromatin, termed compartment B in Hi-C datasets, is a phase-separating gene-silencing form of chromatin, preferentially located at the two nuclear sites, nuclear (lamina-associate chromatin domains, LADs) and nucleoli (nucleoli-associated chromatin domains, NADs) peripheries. LADs and NADs contain both interchangeable and location-specific chromatin domains. Recent studies suggest striking dynamics in LADs and NADs during the differentiation of embryonic stem cells into neural progenitors and neurons. Here we discuss recent advances in understanding NADs changes during neuronal differentiation and future questions on how NADs integrity can contribute to healthy neurodevelopment and neurodevelopment diseases.
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Affiliation(s)
- Amrita Kumari
- Department of Molecular, Cellular and Cancer Biology, University of Massachusetts Medical School, Worcester, MA 1605, US
| | - Anastassiia Vertii
- Department of Molecular, Cellular and Cancer Biology, University of Massachusetts Medical School, Worcester, MA 1605, US.
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Atta K, Mondal S, Gorai S, Singh AP, Kumari A, Ghosh T, Roy A, Hembram S, Gaikwad DJ, Mondal S, Bhattacharya S, Jha UC, Jespersen D. Impacts of salinity stress on crop plants: improving salt tolerance through genetic and molecular dissection. Front Plant Sci 2023; 14:1241736. [PMID: 37780527 PMCID: PMC10540871 DOI: 10.3389/fpls.2023.1241736] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/17/2023] [Accepted: 08/14/2023] [Indexed: 10/03/2023]
Abstract
Improper use of water resources in irrigation that contain a significant amount of salts, faulty agronomic practices such as improper fertilization, climate change etc. are gradually increasing soil salinity of arable lands across the globe. It is one of the major abiotic factors that inhibits overall plant growth through ionic imbalance, osmotic stress, oxidative stress, and reduced nutrient uptake. Plants have evolved with several adaptation strategies at morphological and molecular levels to withstand salinity stress. Among various approaches, harnessing the crop genetic variability across different genepools and developing salinity tolerant crop plants offer the most sustainable way of salt stress mitigation. Some important major genetic determinants controlling salinity tolerance have been uncovered using classical genetic approaches. However, its complex inheritance pattern makes breeding for salinity tolerance challenging. Subsequently, advances in sequence based breeding approaches and functional genomics have greatly assisted in underpinning novel genetic variants controlling salinity tolerance in plants at the whole genome level. This current review aims to shed light on physiological, biochemical, and molecular responses under salt stress, defense mechanisms of plants, underlying genetics of salt tolerance through bi-parental QTL mapping and Genome Wide Association Studies, and implication of Genomic Selection to breed salt tolerant lines.
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Affiliation(s)
- Kousik Atta
- ICAR-Indian Agricultural Research Institute, New Delhi, India
- Bidhan Chandra Krishi Viswavidyalaya, Mohanpur, West Bengal, India
| | - Saptarshi Mondal
- Department of Crop and Soil Sciences, University of Georgia, Griffin, GA, United States
| | - Shouvik Gorai
- Bidhan Chandra Krishi Viswavidyalaya, Mohanpur, West Bengal, India
| | - Aditya Pratap Singh
- Bidhan Chandra Krishi Viswavidyalaya, Mohanpur, West Bengal, India
- School of Agriculture, GIET University, Gunupur, Rayagada, Odisha, India
| | - Amrita Kumari
- Bidhan Chandra Krishi Viswavidyalaya, Mohanpur, West Bengal, India
| | - Tuhina Ghosh
- ICAR-Indian Agricultural Research Institute, New Delhi, India
| | - Arkaprava Roy
- ICAR-Indian Agricultural Research Institute, New Delhi, India
- ICAR- National Institute of Biotic Stress Management, Raipur, India
| | - Suryakant Hembram
- WBAS (Research), Government of West Bengal, Field Crop Research Station, Burdwan, India
| | | | - Subhasis Mondal
- Bidhan Chandra Krishi Viswavidyalaya, Mohanpur, West Bengal, India
| | | | | | - David Jespersen
- Department of Crop and Soil Sciences, University of Georgia, Griffin, GA, United States
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Saini K, Sahoo A, Kumar J, Kumari A, Pant KK, Bhatnagar A, Bhaskar T. Effective utilization of discarded reverse osmosis post-carbon for adsorption of dyes from wastewater. Environ Res 2023; 231:116165. [PMID: 37196691 DOI: 10.1016/j.envres.2023.116165] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Revised: 05/11/2023] [Accepted: 05/14/2023] [Indexed: 05/19/2023]
Abstract
In this study, the deployment of post Reverse Osmosis (RO)-carbon as a adsorbent for dye removal from water has been investigated. The post RO-carbon was thermally activated (RO900), and the material thus obtained exhibited high surface area viz. 753 m2/g. In the batch system, the efficient Methylene Blue (MB) and Methyl Orange (MO) removal was obtained by using 0.08 g and 0.13 g/50 mL adsorbent dosage respectively. Moreover, 420 min was the optimized equilibration time for both the dyes. The maximum adsorption capacities of RO900 for MB and MO dyes were 223.29 and 158.14 mg/g, respectively. The comparatively higher MB adsorption was attributed to the electrostatic attraction between adsorbent and MB. The thermodynamic findings revealed the process as spontaneous, endothermic, and accompanied by entropy increment. Additionally, simulated effluent was treated, and >99% dye removal efficiency was achieved. To mimic an industrial perspective, MB adsorption onto RO900 was also carried out in continuous mode. The initial dye concentration and effluent flow rate were among the process parameters that were optimized using the continuous mode of operation. Further, the experimental data of continuous mode was fitted with Clark, Yan, and Yoon-Nelson models. Py-GC/MS investigation revealed that dye-loaded adsorbents could be pyrolyzed to produce valuable chemicals. The cost and low toxicity associated benefits of discarded RO-carbon over other adsorbents reveal the significance of the present study.
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Affiliation(s)
- Komal Saini
- Thermo Catalytic Process Area (TPA), Material Resource Efficiency Division (MRED) CSIR-Indian Institute of Petroleum (IIP), Dehradun, 248005, Uttarakhand, India; Academy of Scientific and Innovative Research (AcSIR), Sector 19, Kamla Nehru Nagar, Ghaziabad, 201002, Uttar Pradesh, India
| | - Abhisek Sahoo
- Department of Chemical Engineering, Indian Institute of Technology-Delhi (IITD), New Delhi, 110016, India
| | - Jitendra Kumar
- Thermo Catalytic Process Area (TPA), Material Resource Efficiency Division (MRED) CSIR-Indian Institute of Petroleum (IIP), Dehradun, 248005, Uttarakhand, India; Academy of Scientific and Innovative Research (AcSIR), Sector 19, Kamla Nehru Nagar, Ghaziabad, 201002, Uttar Pradesh, India
| | - Amrita Kumari
- Department of Environmental Sciences, Central University of Jharkhand, Brambe, Ranchi, 835205, Jharkhand, India
| | - Kamal Kishore Pant
- Department of Chemical Engineering, Indian Institute of Technology-Delhi (IITD), New Delhi, 110016, India
| | - Amit Bhatnagar
- Department of Separation Science, LUT School of Engineering Science, LUT University, Sammonkatu 12, FI-50130, Mikkeli, Finland
| | - Thallada Bhaskar
- Thermo Catalytic Process Area (TPA), Material Resource Efficiency Division (MRED) CSIR-Indian Institute of Petroleum (IIP), Dehradun, 248005, Uttarakhand, India; Academy of Scientific and Innovative Research (AcSIR), Sector 19, Kamla Nehru Nagar, Ghaziabad, 201002, Uttar Pradesh, India.
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Koshal SS, Ray A, Hora R, Kaur A, F Quadri S, Mehra R, Kumari A, Haldar P, Roy AD. Critical factors in the successful expansion of Pneumococcal Conjugate Vaccine in India during the COVID-19 pandemic. Vaccine X 2023; 14:100328. [PMID: 37346081 PMCID: PMC10240905 DOI: 10.1016/j.jvacx.2023.100328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 05/02/2023] [Accepted: 05/30/2023] [Indexed: 06/23/2023] Open
Abstract
India had decided to roll out PCV in India in 2015, but successful implementation of any new vaccine introduction mandates an enormous effort. PCV was scaled up during the COVID-19 pandemic, which posed new, unprecedented challenges in the vaccine rollout. However, India successfully expanded PCV in the country in record time across all states and Union Territories. During the pandemic, supply-side restrictions, delayed vaccine shipments, staff shortages, and restrictions in conducting training negatively affected the roll-out of PCV across the country. However, despite the ongoing pandemic, India successfully rolled out PCV across the country in 7 months. In this review, the authors have conducted a narrative review to delineate the crucial factors that helped in the successful expansion of PCV.
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Affiliation(s)
| | | | | | | | | | | | | | - Pradeep Haldar
- Former Advisor (RCH), Ministry of Health & Family Welfare, India
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Soni GK, Seth S, Arora S, Singh K, Kumari A, Kanagat N, Fields R. Harnessing the Power of Collaboration to Expand the Coverage and Equity of COVID-19 Vaccinations in India: A Community Collaboration Model. Vaccines (Basel) 2023; 11:1022. [PMID: 37376411 PMCID: PMC10304198 DOI: 10.3390/vaccines11061022] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Revised: 04/28/2023] [Accepted: 05/19/2023] [Indexed: 06/29/2023] Open
Abstract
Early in 2021, India embarked on the uphill journey of the COVID-19 vaccination of the largest population group in the world in a prioritized manner and in the shortest possible time. Considering the endless variety of geography and diverse socio-economic demographic, religious, and community contexts, there was a high likelihood of certain population subgroups with known vulnerabilities facing inequities, which were anticipated to be further accentuated by a digital divide. This necessitated devising solutions for such communities in a localized manner to aid the local government in breaking the service access and uptake barriers with an inclusive approach. To bridge this vital gap, the Momentum Routine Immunization Transformation and Equity project implemented a three-tiered collaboration, viz., government, non-governmental organizations (NGOs), and a wide range of vulnerable and at-risk communities, utilizing knowledge exchange and use of data. The project implemented localization strategies through the NGOs for community engagement in conjunction with government vaccination teams to universalize COVID-19 vaccination uptake up to the last mile. The collaboration resulted in reaching close to 50 million beneficiaries through messaging and facilitated the administration of more than 14 million vaccine doses, including 6.1 million doses for vulnerable and marginalized communities in 18 States and Union territories in India, along with suggesting implications for public health practice and research.
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Affiliation(s)
- Gopal Krishna Soni
- John Snow India Pvt. Ltd. (JSIPL), Plot No. 5 & 6, First Floor Allied House, Pocket 10, Sector B, Vasant Kunj, Delhi 110070, India
| | - Surbhi Seth
- John Snow India Pvt. Ltd. (JSIPL), Plot No. 5 & 6, First Floor Allied House, Pocket 10, Sector B, Vasant Kunj, Delhi 110070, India
| | - Sonal Arora
- John Snow India Pvt. Ltd. (JSIPL), Plot No. 5 & 6, First Floor Allied House, Pocket 10, Sector B, Vasant Kunj, Delhi 110070, India
| | - Kapil Singh
- World Health Organization (WHO), Nirman Bhawan Maulana Azad Road, Delhi 110011, India
| | - Amrita Kumari
- John Snow India Pvt. Ltd. (JSIPL), Plot No. 5 & 6, First Floor Allied House, Pocket 10, Sector B, Vasant Kunj, Delhi 110070, India
| | - Natasha Kanagat
- John Snow Inc., 2733 Crystal Drive, 4th Floor, Arlington, VA 22202, USA
| | - Rebecca Fields
- John Snow Inc., 2733 Crystal Drive, 4th Floor, Arlington, VA 22202, USA
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Soni GK, Bhatnagar A, Gupta A, Kumari A, Arora S, Seth S, Rastogi A, Kanagat N, Fields R. Engaging Faith-Based Organizations for Promoting the Uptake of COVID-19 Vaccine in India: A Case Study of a Multi-Faith Society. Vaccines (Basel) 2023; 11:vaccines11040837. [PMID: 37112749 PMCID: PMC10140837 DOI: 10.3390/vaccines11040837] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 03/27/2023] [Accepted: 03/29/2023] [Indexed: 04/29/2023] Open
Abstract
Mass vaccination, currently the most promising solution to contain communicable diseases, including COVID-19 requires collaboration between a variety of partners to improve the supply and demand and alleviate vaccine inequity. Vaccine hesitancy features in WHO's list of top 10 threats to global health, and there is plethora of disinformation instigating conflict between COVID-19 vaccination drive and religious sentiments. Negotiating public health partnerships with FBOs (Faith Based Organizations) has always been challenging. A handful of faith leaders have always shown resistance to ideas such as child immunization, and family planning. Many others have been supportive on other fronts like helping people with food, shelter, and medical aid in the times of public health crisis. Religion is an important part of life for the majority of the Indian population. People confide in faith-based leaders in the times of difficulty. This article presents experiences from the strategic engagement with FBOs (entities dedicated to specific religious identities, often including a social or moral component) to promote uptake of COVID-19 vaccination, especially among the vulnerable and marginalized communities. The project team collaborated with 18 FBOs and more than 400 religious institutions to promote COVID-19 vaccination and build confidence for the vaccination program. As a result, a sustainable network of sensitized FBOs from diverse faiths was created. The FBOs mobilized and facilitated vaccination of 0.41 million beneficiaries under the project.
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Affiliation(s)
- Gopal Krishna Soni
- John Snow India Pvt. Ltd. (JSIPL)-Plot No. 5 & 6, First Floor Allied House, Pocket 10, Sector B, Vasant Kunj, Delhi 110070, India
| | - Anumegha Bhatnagar
- John Snow India Pvt. Ltd. (JSIPL)-Plot No. 5 & 6, First Floor Allied House, Pocket 10, Sector B, Vasant Kunj, Delhi 110070, India
| | - Anil Gupta
- John Snow India Pvt. Ltd. (JSIPL)-Plot No. 5 & 6, First Floor Allied House, Pocket 10, Sector B, Vasant Kunj, Delhi 110070, India
| | - Amrita Kumari
- John Snow India Pvt. Ltd. (JSIPL)-Plot No. 5 & 6, First Floor Allied House, Pocket 10, Sector B, Vasant Kunj, Delhi 110070, India
| | - Sonal Arora
- John Snow India Pvt. Ltd. (JSIPL)-Plot No. 5 & 6, First Floor Allied House, Pocket 10, Sector B, Vasant Kunj, Delhi 110070, India
| | - Surbhi Seth
- John Snow India Pvt. Ltd. (JSIPL)-Plot No. 5 & 6, First Floor Allied House, Pocket 10, Sector B, Vasant Kunj, Delhi 110070, India
| | - Apurva Rastogi
- John Snow India Pvt. Ltd. (JSIPL)-Plot No. 5 & 6, First Floor Allied House, Pocket 10, Sector B, Vasant Kunj, Delhi 110070, India
| | - Natasha Kanagat
- John Snow Inc., 2733 Crystal Drive, 4th Floor, Arlington, VA 22202, USA
| | - Rebecca Fields
- John Snow Inc., 2733 Crystal Drive, 4th Floor, Arlington, VA 22202, USA
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Pandit A, Shukla AK, Deepika, Vaidya D, Kumari A, Kumar A. In vitro Assessment of Anti-Microbial Activity of Aloe vera (Barbadensis miller) Supported through Computational Studies. Russ J Bioorg Chem 2023. [DOI: 10.1134/s1068162023020188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
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Gahtori R, Tripathi AH, Kumari A, Negi N, Paliwal A, Tripathi P, Joshi P, Rai RC, Upadhyay SK. Anticancer plant-derivatives: deciphering their oncopreventive and therapeutic potential in molecular terms. Futur J Pharm Sci 2023. [DOI: 10.1186/s43094-023-00465-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/25/2023] Open
Abstract
Abstract
Background
Over the years, phytomedicines have been widely used as natural modalities for the treatment and prevention of various diseases by different ethnic groups across the globe. Although, 25% of drugs in the USA contain at least one plant-derived therapeutic compound, currently there is a paucity of plant-derived active medicinal ingredients in the pharmaceutical industry. Scientific evidence-based translation of plant-derived ethnomedicines for their clinical application is an urgent need. The anticancer and associated properties (antioxidative, anti-inflammatory, pro-apoptotic and epithelial-mesenchymal transition (EMT) inhibition) of various plant extracts and phytochemicals have been elucidated earlier. Several of the plant derivatives are already in use under prophylactic/therapeutic settings against cancer and many are being investigated under different phases of clinical trials.
Main body
The purpose of this study is to systematically comprehend the progress made in the area of prophylactic and therapeutic potential of the anticancerous plant derivatives. Besides, we aim to understand their anticancer potential in terms of specific sub-phenomena, such as anti-oxidative, anti-inflammatory, pro-apoptotic and inhibition of EMT, with an insight of the molecules/pathways associated with them. The study also provides details of classes of anticancer compounds, their plant source(s) and the molecular pathway(s) targeted by them. In addition to the antioxidative and antiproliferative potentials of anticancer plant derivatives, this study emphasizes on their EMT-inhibition potential and other ‘anticancer related’ properties. The EMT is highlighted as a phenomenon of choice for targeting cancer due to its role in the induction of metastasis and drug resistance. Different phytochemicals in pre-clinical or clinical trials, with promising chemopreventive/anticancer activities have been enlisted and the plant compounds showing synergistic anticancer activity in combination with the existing drugs have been discussed. The review also unravels the need of carrying out pan-signalome studies for identifying the cardinal pathways modulated by phytomedicine(s), as in many cases, the molecular pathway(s) has/have been randomly studied.
Conclusion
This review systematically compiles the studies regarding the impact of various plant derivatives in different cancers and oncogenic processes, as tested in diverse experimental model systems. Availability of more comprehensive information on anticancer phyto-constituents, their relative abundance in crude drugs, pathways/molecules targeted by phytomedicines, their long-term toxicity data and information regarding their safe use under the combinatorial settings, would open greater avenues of their utilization in future against this dreaded disease.
Graphical Abstract
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Raj R, Mahey R, Bhatla N, Manchanda S, Kumari A, Ranjan R. Laparoscopic Inguinal Gonadectomy in a Case of Partial Androgen Insensitivity Syndrome and Bilateral Gonads in Inguinal Canal. J Minim Invasive Gynecol 2022. [DOI: 10.1016/j.jmig.2022.09.198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Cheluvaraju R, Mahey R, Kumari A, Bhatla N. 8974 Laparoscopic Loop and Stitch Technique in Tubal Stump Ectopic Pregnancy. J Minim Invasive Gynecol 2022. [DOI: 10.1016/j.jmig.2022.09.521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Kumari A, Raina N, Wahi A, Goh KW, Sharma P, Nagpal R, Jain A, Ming LC, Gupta M. Wound-Healing Effects of Curcumin and Its Nanoformulations: A Comprehensive Review. Pharmaceutics 2022; 14:2288. [PMID: 36365107 PMCID: PMC9698633 DOI: 10.3390/pharmaceutics14112288] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2022] [Revised: 09/28/2022] [Accepted: 10/10/2022] [Indexed: 08/13/2023] Open
Abstract
Wound healing is an intricate process of tissue repair or remodeling that occurs in response to injury. Plants and plant-derived bioactive constituents are well explored in the treatment of various types of wounds. Curcumin is a natural polyphenolic substance that has been used since ancient times in Ayurveda for its healing properties, as it reduces inflammation and acts on several healing stages. Several research studies for curcumin delivery at the wound site reported the effectiveness of curcumin in eradicating reactive oxygen species and its ability to enhance the deposition of collagen, granulation tissue formation, and finally, expedite wound contraction. Curcumin has been widely investigated for its wound healing potential but its lower solubility and rapid metabolism, in addition to its shorter plasma half-life, have limited its applications in wound healing. As nanotechnology has proven to be an effective technique to accelerate wound healing by stimulating appropriate mobility through various healing phases, curcumin-loaded nanocarriers are used for targeted delivery at the wound sites. This review highlights the potential of curcumin and its nanoformulations, such as liposomes, nanoparticles, and nano-emulsions, etc. in wound healing. This paper emphasizes the numerous biomedical applications of curcumin which collectively prepare a base for its antibiofilm and wound-healing action.
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Affiliation(s)
- Amrita Kumari
- School of Pharmaceutical Sciences, Delhi Pharmaceutical Sciences and Research University (DPSRU), New Delhi 110017, India
| | - Neha Raina
- School of Pharmaceutical Sciences, Delhi Pharmaceutical Sciences and Research University (DPSRU), New Delhi 110017, India
| | - Abhishek Wahi
- School of Pharmaceutical Sciences, Delhi Pharmaceutical Sciences and Research University (DPSRU), New Delhi 110017, India
| | - Khang Wen Goh
- Faculty of Data Science and Information Technology, INTI International University, Nilai 71800, Malaysia
| | - Pratibha Sharma
- University Institute of Pharmaceutical Sciences, Panjab University, Chandigarh 160014, India
| | - Riya Nagpal
- School of Pharmaceutical Sciences, Delhi Pharmaceutical Sciences and Research University (DPSRU), New Delhi 110017, India
| | - Atul Jain
- Department of Pharmaceutics, Delhi Institute of Pharmaceutical Sciences and Research, Delhi Pharmaceutical Sciences and Research University (DPSRU), New Delhi 110017, India
| | - Long Chiau Ming
- PAPRSB Institute of Health Sciences, Universiti Brunei Darussalam, Gadong BE1410, Brunei
| | - Madhu Gupta
- School of Pharmaceutical Sciences, Delhi Pharmaceutical Sciences and Research University (DPSRU), New Delhi 110017, India
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Khanna S, Sarin A, Mishra AK, Bhagat JK, Kumari A, Gosai H. Influence of the Type of Topical Fluoride Delivery at Various Restoration Time Points on the Micro-Shear Bond Strength of a Resin-Based Composite on Bleached Tooth Enamel. Cureus 2022; 14:e25811. [PMID: 35822133 PMCID: PMC9271216 DOI: 10.7759/cureus.25811] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Accepted: 06/08/2022] [Indexed: 11/30/2022] Open
Abstract
Background This study aimed to evaluate the micro-shear bond strength (mSBS) of an adhesive applied to bleached enamel to determine the effects of fluoride supply and restoration time on the mSBS. Methodology In this study, we bleached 130 samples of enamel and split them into the following three groups of 40 each: group MI: McInnes bleaching solution; group MIF: McInnes bleaching solution + topical acidulated phosphate fluoride gel; group FMI: 2% fluoridated McInnes bleaching solution. Non-bleaching or fluoridation was performed on a group of 10. Subgroups were created for each group (except for the control) to be restored for seven, 14, or 21 days. The mSBS test was performed on a universal testing machine after Tygon tubes were filled with composite resin and put on enamel surfaces. Tukey’s post-hoc test (p = 0.05) and two-way analysis of variance were employed to analyze the data. Results The mSBS values obtained for all groups immediately and after seven days were lower, while at 14 and 21 days were similar to the control group. According to the data, group FMI had greater mSBS levels than groups MI and MIF, both immediately and seven days later. Conclusions When in-office bleaching was employed, only the fluoride McInnes solution was successful in quickly correcting the adverse effects of low mSBS.
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Affiliation(s)
- Shreya Khanna
- Department of Conservative Dentistry and Endodontics, Government Dental College, Jamanagar, IND
| | - Aditi Sarin
- Department of Conservative Dentistry and Endodontics, Dentcraft Dental Clinic, Noida, IND
| | - Amit Kumar Mishra
- Department of Prosthodontics, Vananchal Dental College and Hospital, Garhwa, IND
| | - Jaimesh Kumar Bhagat
- Department of Conservative Dentistry and Endodontics, Mithila Minority Dental College and Hospital, Darbhanga, IND
| | - Amrita Kumari
- Department of Conservative Dentistry and Endodontics, Vananchal Dental College and Hospital, Garhwa, IND
| | - Hasmukh Gosai
- Department of Conservative Dentistry and Endodontics, Siddhpur Dental College and Hospital, Gandhinagar, IND
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Abstract
Eruption cyst or eruption hematoma is a soft tissue cyst of odontogenic origin that occurs in mucosa, which forms shortly before the eruption of the primary or permanent tooth. It is usually found in children. In some cases, it has been seen that it disappears on its own. If there are complications like pain, bleeding or infection, surgical exposure and drainage are necessary. This case is associated with erupting permanent tooth, and its surgical crown exposure has been done by using a diode laser. How to cite this article: Bansal MB, Kumari A, Asrani KH, et al. Eruption Cyst Treated with Diode Laser: A Case Report. Int J Clin Pediatr Dent 2022;15(2):215-217.
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Affiliation(s)
- Malvika B Bansal
- Department of Periodontology, Mahatma Gandhi Dental College and Hospital, Jaipur, Rajasthan, India
| | - Amrita Kumari
- Department of Periodontology, Mahatma Gandhi Dental College and Hospital, Jaipur, Rajasthan, India
| | - Karan H Asrani
- Department of Periodontology, Mahatma Gandhi Dental College and Hospital, Jaipur, Rajasthan, India
| | - Ashish Yadav
- Department of Periodontology, Mahatma Gandhi Dental College and Hospital, Jaipur, Rajasthan, India
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Dawn R, Zzaman M, Faizal F, Kiran C, Kumari A, Shahid R, Panatarani C, Joni IM, Verma VK, Sahoo SK, Amemiya K, Singh VR. Origin of Magnetization in Silica-coated Fe 3O 4 Nanoparticles Revealed by Soft X-ray Magnetic Circular Dichroism. Braz J Phys 2022; 52:99. [PMCID: PMC9014780 DOI: 10.1007/s13538-022-01102-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Accepted: 03/31/2022] [Indexed: 05/24/2023]
Abstract
Abstract
Magnetite (Fe3O4) nanoparticles (NPs) and SiO2-coated Fe3O4 nanoparticles have successfully been synthesized using co-precipitation and modified Stöber methods, respectively. The samples were characterized using X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, high-resolution transmission electron microscopy (HRTEM), vibrating sample magnetometer (VSM) techniques, X-ray absorption spectroscopy (XAS), and X-ray magnetic circular dichroism (XMCD). XRD and FTIR data confirmed the structural configuration of a single-phase Fe3O4 and the successful formation of SiO2-coated Fe3O4 NPs. XRD also confirmed that we have succeeded to synthesize nano-meter size of Fe3O4 NPs. HRTEM images showed the increasing thickness of SiO2-coated Fe3O4 with the addition of the Tetraethyl Orthosilicate (TEOS). Room temperature VSM analysis showed the magnetic behaviour of Fe3O4 and its variations that occurred after SiO2 coating. The magnetic behaviour is further authenticated by XAS spectra analysis which cleared about the existence of SiO2 shells that have transformed the crystal as well as the local structures of the magnetite NPs. We have performed XMCD measurements, which is a powerful element-specific technique to find out the origin of magnetization in SiO2-coated Fe3O4 NPs, that verified a decrease in magnetization with increasing thickness of the SiO2 coating. Graphical Abstract Magnetite (Fe3O4) nanoparticles (NPs) and SiO2-coated Fe3O4 nanoparticles have successfully been synthesized using co-precipitation and modified Stöber methods, respectively. The samples were characterized using X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, high-resolution transmission electron microscopy (HRTEM), vibrating sample magnetometer (VSM) techniques, X-ray absorption spectroscopy (XAS), and X-ray magnetic circular dichroism (XMCD). XRD and FTIR data confirmed the structural configuration of a single-phase Fe3O4 and the successful formation of SiO2-coated Fe3O4 NPs. XRD also confirmed that we have succeeded to synthesize nano-meter size of Fe3O4 NPs. HRTEM images showed the increasing thickness of SiO2-coated Fe3O4 with the addition of the Tetraethyl Orthosilicate (TEOS). Room temperature VSM analysis showed the magnetic behaviour of Fe3O4 and its variations that occurred after SiO2 coating. The magnetic behaviour is further authenticated by XAS spectra analysis which cleared about the existence of SiO2 shells that have transformed the crystal as well as the local structures of the magnetite NPs. We have performed XMCD measurements, which is a powerful element-specific technique to find out the origin of magnetization in SiO2-coated Fe3O4 NPs, that verified a decrease in magnetization with increasing thickness of the SiO2 coating. ![]()
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Affiliation(s)
- R. Dawn
- Department of Physics, Central University of South Bihar, Gaya-824236, India
| | - M. Zzaman
- Department of Physics, Central University of South Bihar, Gaya-824236, India
- Department of Physics, Jamia Millia Islamia (Central University), New Delhi, 110025 India
| | - F. Faizal
- Department of Physics, Universitas Padjadjaran, Jl. Raya Bandung-Sumedang Km 21, West Java, Bandung, 45363 Indonesia
- Functional Nano Powder University Centre of Excellence (FiNder U CoE), Universitas Padjadjaran, Jl. Raya Bandung-Sumedang, Km 21, West Java, Bandung, 45363 Indonesia
| | - C. Kiran
- Department of Animal Sciences, Central University of Kashmir, Ganderbal, 191201 India
| | - A. Kumari
- Department of Physics, Central University of South Bihar, Gaya-824236, India
| | - R. Shahid
- Department of Physics, Jamia Millia Islamia (Central University), New Delhi, 110025 India
| | - C. Panatarani
- Department of Physics, Universitas Padjadjaran, Jl. Raya Bandung-Sumedang Km 21, West Java, Bandung, 45363 Indonesia
- Functional Nano Powder University Centre of Excellence (FiNder U CoE), Universitas Padjadjaran, Jl. Raya Bandung-Sumedang, Km 21, West Java, Bandung, 45363 Indonesia
| | - I. M. Joni
- Department of Physics, Universitas Padjadjaran, Jl. Raya Bandung-Sumedang Km 21, West Java, Bandung, 45363 Indonesia
- Functional Nano Powder University Centre of Excellence (FiNder U CoE), Universitas Padjadjaran, Jl. Raya Bandung-Sumedang, Km 21, West Java, Bandung, 45363 Indonesia
| | - V. K. Verma
- Department of Physics, Madanapalle Institute of Technology & Science, Madanapalle, 517325 India
| | - S. K. Sahoo
- Department of Metallurgical and Materials Engineering, National Institute of Technology, Rourkela, 769008 India
| | - K. Amemiya
- Photon Factory, IMSS, High Energy Accelerator Research Organization, Tsukuba, Ibaraki 305-0801 Japan
| | - V. R. Singh
- Department of Physics, Central University of South Bihar, Gaya-824236, India
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Chakraborty M, Singh A, Vadavadagi SV, Kumari A, Prasad RS, Anand A. Evaluation of Microleakage Using Dye-penetration Method in Three Different Composite Resin Core Build-up Materials: An In Vitro Study. J Contemp Dent Pract 2022; 23:61-65. [PMID: 35656659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
AIM Aim of the current research is to establish and assess the microleakage in bulk-fill composite, nanohybrid ormocer-based resins, and nanofilled composite resin core build-up materials employing the dye-penetration technique. MATERIALS AND METHODS Sixty human mandibular first premolar teeth with a solitary root canal without dental caries were chosen for this research. Each specimen was subjected to decoronation of 2 mm from the cementoenamel junction (CEJ), following which the root canal treatment procedure was rendered complete. A space for the post was made for all the 60 samples. Following positioning of the post, specimens were allocated into one of the following three investigational groups (20 specimens in every group) on the basis of the core build-up materials used as group I: bulk-fill composites, group II: nanohybrid ormocer-based resins, and group III: nanofilled resin composites. Direct composite was used for core build-up and subjected to light-curing. Following this, the specimens were immersed in 1% methylene blue solution for 24 hours interval. Each section was evaluated for dye diffusion employing a stereomicroscope with software at a magnifying power of 40× and surface contact between dentin and base of the material was evaluated under scanning electron microscope. RESULTS Nanohybrid ormocer-based composites exhibited the least microleakage at 1.12 ± 0.14, in pursuit by nanofilled composite resins at 1.79 ± 0.09, and finally the bulk-fill composites at 2.85 ± 0.11, amid the investigational groups studied. A statistically significant difference amid the three dissimilar cores buildup substances was found upon analysis of variance. CONCLUSION Despite the study limitations, this research came to a conclusion that each of the three investigated core build-up substances exhibited microleakage. However, amid the three, nanohybrid ormocer-based composites depicted the lowest amount of microleakage in pursuit by the nanofilled resins and the bulk-fill composites. CLINICAL SIGNIFICANCE Core build-up is an important requirement as the remaining tooth substance following root canal treatment reduces and needs reinforcement with core build-up to sustain the tooth structure and provide resistance. A vital mandate for enduring efficiency of the restoration in the mouth is high-quality adhesive bond of these agents to cavity walls with diminished microleakage.
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Affiliation(s)
- Mrinmoy Chakraborty
- Department of Conservative Dentistry and Endodontics, Vananchal Dental College and Hospital, Garhwa, Jharkhand, India
| | - Amitu Singh
- Department of Pedodontics, Vananchal Dental College and Hospital, Garhwa, Jharkhand, India
| | - Suneel V Vadavadagi
- Department of Prosthodontics, SJM Dental College and Hospital, Chitradurga, Karnataka, India, Phone: +91 9845804642, e-mail:
| | - Amrita Kumari
- Department of Conservative Dentistry and Endodontics, Vananchal Dental College and Hospital, Garhwa, Jharkhand, India
| | - Ravi S Prasad
- Department of Conservative Dentistry and Endodontics, Vananchal Dental College and Hospital, Garhwa, Jharkhand, India
| | - Abhishek Anand
- Department of Pedodontics, Vananchal Dental College and Hospital, Garhwa, Jharkhand, India
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18
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Abstract
Aspergillosis, candidiasis, and cryptococcosis are the most common cause of mycoses-related disease and death among immune-compromised patients. Adhesins are cell-surface exposed proteins or glycoproteins of pathogens that bind to the extracellular matrix (ECM) constituents or mucosal epithelial surfaces of the host cells. The forces of interaction between fungal adhesins and host tissues are accompanied by ligand binding, hydrophobic interactions and protein-protein aggregation. Adherence is the primary and critical step involved in the pathogenesis; however, there is limited information on fungal adhesins compared to that on the bacterial adhesins. Except a few studies based on screening of proteome for adhesin identification, majority are based on characterization of individual adhesins. Recently, based on their characteristic signatures, many putative novel fungal adhesins have been predicted using bioinformatics algorithms. Some of these novel adhesin candidates have been validated by in-vitro studies; though, most of them are yet to be characterised experimentally. Morphotype specific adhesin expression as well as tissue tropism are the crucial determinants for a successful adhesion process. This review presents a comprehensive overview of various studies on fungal adhesins and discusses the targetability of the adhesins and adherence phenomenon, for combating the fungal infection in a preventive or therapeutic mode.
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Affiliation(s)
- Amrita Kumari
- Department of Biotechnology, Sir J.C. Bose Technical campus, Kumaun University, Nainital, India
| | - Ankita H Tripathi
- Department of Biotechnology, Sir J.C. Bose Technical campus, Kumaun University, Nainital, India
| | - Poonam Gautam
- ICMR-National Institute of Pathology, New Delhi, India
| | - Rekha Gahtori
- Department of Biotechnology, Sir J.C. Bose Technical campus, Kumaun University, Nainital, India
| | - Amit Pande
- Directorate of Coldwater Fisheries Research (DCFR), Nainital, India
| | - Yogendra Singh
- Department of Zoology, University of Delhi, New Delhi, India
| | - Taruna Madan
- ICMR-National Institute for Research in Reproductive Health (NIRRH), Mumbai, India
| | - Santosh K Upadhyay
- Department of Biotechnology, Sir J.C. Bose Technical campus, Kumaun University, Nainital, India
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19
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Kumari A, Kumar C, Pergu R, Kumar M, Mahale SP, Wasnik N, Mylavarapu SVS. Phosphorylation and Pin1 binding to the LIC1 subunit selectively regulate mitotic dynein functions. J Cell Biol 2021; 220:212736. [PMID: 34709360 PMCID: PMC8562849 DOI: 10.1083/jcb.202005184] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Revised: 05/13/2021] [Accepted: 09/22/2021] [Indexed: 01/31/2023] Open
Abstract
The dynein motor performs multiple functions in mitosis by engaging with a wide cargo spectrum. One way to regulate dynein's cargo-binding selectivity is through the C-terminal domain (CTD) of its light intermediate chain 1 subunit (LIC1), which binds directly with cargo adaptors. Here we show that mitotic phosphorylation of LIC1-CTD at its three cdk1 sites is required for proper mitotic progression, for dynein loading onto prometaphase kinetochores, and for spindle assembly checkpoint inactivation in human cells. Mitotic LIC1-CTD phosphorylation also engages the prolyl isomerase Pin1 predominantly to Hook2-dynein-Nde1-Lis1 complexes, but not to dynein-spindly-dynactin complexes. LIC1-CTD dephosphorylation abrogates dynein-Pin1 binding, promotes prophase centrosome-nuclear envelope detachment, and impairs metaphase chromosome congression and mitotic Golgi fragmentation, without affecting interphase membrane transport. Phosphomutation of a conserved LIC1-CTD SP site in zebrafish leads to early developmental defects. Our work reveals that LIC1-CTD phosphorylation differentially regulates distinct mitotic dynein pools and suggests the evolutionary conservation of this phosphoregulation.
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Affiliation(s)
- Amrita Kumari
- Laboratory of Cellular Dynamics, Regional Centre for Biotechnology, NCR Biotech Science Cluster, third Milestone Faridabad-Gurgaon Expressway, Faridabad Haryana, India.,Manipal Academy of Higher Education, Manipal Karnataka, India
| | - Chandan Kumar
- Laboratory of Cellular Dynamics, Regional Centre for Biotechnology, NCR Biotech Science Cluster, third Milestone Faridabad-Gurgaon Expressway, Faridabad Haryana, India
| | - Rajaiah Pergu
- Laboratory of Cellular Dynamics, Regional Centre for Biotechnology, NCR Biotech Science Cluster, third Milestone Faridabad-Gurgaon Expressway, Faridabad Haryana, India.,Manipal Academy of Higher Education, Manipal Karnataka, India
| | - Megha Kumar
- Laboratory of Cellular Dynamics, Regional Centre for Biotechnology, NCR Biotech Science Cluster, third Milestone Faridabad-Gurgaon Expressway, Faridabad Haryana, India.,Council of Scientific and Industrial Research, Centre for Cellular and Molecular Biology, Habsiguda, Hyderabad, Telangana, India.,Academy of Scientific and Innovative Research, New Delhi, India
| | - Sagar P Mahale
- Laboratory of Cellular Dynamics, Regional Centre for Biotechnology, NCR Biotech Science Cluster, third Milestone Faridabad-Gurgaon Expressway, Faridabad Haryana, India.,Manipal Academy of Higher Education, Manipal Karnataka, India
| | - Neeraj Wasnik
- Laboratory of Cellular Dynamics, Regional Centre for Biotechnology, NCR Biotech Science Cluster, third Milestone Faridabad-Gurgaon Expressway, Faridabad Haryana, India
| | - Sivaram V S Mylavarapu
- Laboratory of Cellular Dynamics, Regional Centre for Biotechnology, NCR Biotech Science Cluster, third Milestone Faridabad-Gurgaon Expressway, Faridabad Haryana, India.,Manipal Academy of Higher Education, Manipal Karnataka, India
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20
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21
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Gurnani V, Dhalaria P, Haldar P, Aggarwal MK, Singh P, Agarwal A, Rastogi A, Kumari A, Soni GK. Comprehensive review of the Universal Immunization Programme (UIP) – Identifying gaps and assist in formulating improvement plan for routine immunization in few states of India. Clinical Epidemiology and Global Health 2021. [DOI: 10.1016/j.cegh.2021.100834] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
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22
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Kumari A, Bansal MB, Asrani KH, Yadav A. Nonsyndromic with Recurrent Idiopathic Gingival Fibromatosis: A Rare Case Report. Int J Clin Pediatr Dent 2021; 14:158-160. [PMID: 34326603 PMCID: PMC8311769 DOI: 10.5005/jp-journals-10005-1933] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Idiopathic gingival fibromatosis is a genetic rare disorder, which is characterized by a progressive enlargement of the gingiva. Gingival enlargement is an overgrowth of the gingiva, which can be caused by various etiological factors such as poor oral hygiene, plaque accumulation, inadequate nutrition, hormonal stimulation, several blood dyscrasias, or long-term intake of certain drugs like phenytoin, nifedipine, or cyclosporine. A 14-year-old female patient reported to the Department of Periodontology, Mahatma Gandhi Dental College and Hospital, Jaipur, Rajasthan with her chief complaint of swollen gums in both upper and lower arches since 3 years, which was gradual in onset and increased in size since 4 months which covered almost half of the surface of each tooth. Also reported that 3 years ago, there was similar swelling for which surgical intervention in form of gingivectomy was carried out. The treatment plan for this case was followed by phase 1 therapy (scaling and root planing) and after completion of phase 1 therapy, the labial tissue from the mandibular anterior region was excised and sent for histopathological examination. Histopathological appearance revealed idiopathic gingival fibromatosis. Thereafter, the conventional gingivectomy under local anesthesia was performed to remove excess gingival overgrowth. How to cite this article: Kumari A, Bansal MB, Asrani KH, et al. Non-syndromic with Recurrent Idiopathic Gingival Fibromatosis: A Rare Case Report. Int J Clin Pediatr Dent 2021;14(1):158–160.
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Affiliation(s)
- Amrita Kumari
- Department of Periodontology, Mahatma Gandhi Dental College and Hospital, Jaipur, Rajasthan, India
| | - Malvika B Bansal
- Department of Periodontology, Mahatma Gandhi Dental College and Hospital, Jaipur, Rajasthan, India
| | - Karan H Asrani
- Department of Periodontology, Mahatma Gandhi Dental College and Hospital, Jaipur, Rajasthan, India
| | - Ashish Yadav
- Department of Periodontology, Mahatma Gandhi Dental College and Hospital, Jaipur, Rajasthan, India
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Abstract
In animal cells, a single cytoplasmic dynein motor mediates microtubule minus-end-directed transport, counterbalancing dozens of plus-end-directed kinesins. The remarkable ability of dynein to interact with a diverse cargo spectrum stems from its tightly regulated recruitment of cargo-specific adaptor proteins, which engage the dynactin complex to make a tripartite processive motor. Adaptor binding is governed by the homologous dynein light intermediate chain subunits LIC1 (DYNC1LI1) and LIC2 (DYNC1LI2), which exist in mutually exclusive dynein complexes that can perform both unique and overlapping functions. The intrinsically disordered and variable C-terminal domains of the LICs are indispensable for engaging a variety of structurally divergent adaptors. Here, we hypothesize that numerous spatiotemporally regulated permutations of posttranslational modifications of the LICs, as well as of the adaptors and cargoes, exponentially expand the spectrum of dynein-adaptor-cargo complexes. We thematically illustrate the possibilities that could generate a vast set of biochemical variations required to support the wide range of dynein functions.
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Affiliation(s)
- Amrita Kumari
- Laboratory of Cellular Dynamics, Regional Centre for Biotechnology, NCR Biotech Science Cluster, 3rd Milestone, Faridabad-Gurgaon Expressway, Faridabad, Haryana 121001, India.,Manipal Academy of Higher Education, Manipal, Karnataka 576104, India
| | - Chandan Kumar
- Laboratory of Cellular Dynamics, Regional Centre for Biotechnology, NCR Biotech Science Cluster, 3rd Milestone, Faridabad-Gurgaon Expressway, Faridabad, Haryana 121001, India
| | - Neeraj Wasnik
- Laboratory of Cellular Dynamics, Regional Centre for Biotechnology, NCR Biotech Science Cluster, 3rd Milestone, Faridabad-Gurgaon Expressway, Faridabad, Haryana 121001, India
| | - Sivaram V S Mylavarapu
- Laboratory of Cellular Dynamics, Regional Centre for Biotechnology, NCR Biotech Science Cluster, 3rd Milestone, Faridabad-Gurgaon Expressway, Faridabad, Haryana 121001, India.,Manipal Academy of Higher Education, Manipal, Karnataka 576104, India
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Tripathi AH, Negi N, Gahtori R, Kumari A, Joshi P, Tewari LM, Joshi Y, Bajpai R, Upreti DK, Upadhyay SK. A Review of Anti-Cancer and Related Properties of Lichen-Extracts and Metabolites. Anticancer Agents Med Chem 2021; 22:115-142. [PMID: 34225637 DOI: 10.2174/1871520621666210322094647] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Revised: 12/08/2020] [Accepted: 01/03/2021] [Indexed: 11/22/2022]
Abstract
BACKGROUND Lichens are a composite consortium of fungus and alga. The symbiotic organisms are naturally equipped with distinct characteristics as compared to constituting organisms separately. Lichens due to their peculiar anatomy and physiology, are the reservoir of more than 600 unique secondary metabolites, also known as 'lichen substances'. Since ancient times, many ethnic groups from various parts of the world had knowledge about the applications of lichens as major provenance of food/fodder, medicine, dyes, spices, perfumes, etc. Lichen substances have shown impressive antioxidant, antimicrobial, antiviral, antitumor, and anti-inflammatory activities under experimental conditions. Usnic acid, a well-known metabolite, found in several species of lichens, possesses potent antioxidant and anti-inflammatory activities. It also has significant anti-proliferative potential as revealed through testing in different cancer cell lines. Atranorin, Lecanoric acid, Norstictic acid, Lobaric acid, Stictic acid, Ramalin, Gyrophoric acid, Salazinic acid, Protolichesterinic, and Fumarprotocetraric acid are some of the other purified lichen metabolites with potent anti-cancer activities. OBJECTIVE This study presents an overview of lichen derived extracts/compounds augmenting the anti-cancer (related) properties. METHOD The review comprehends different studies (in vivo and in vitro) backing up the possibility of lichen extracts and metabolites towards their use as antioxidant, anti-proliferative, anti-inflammatory and EMT-inhibiting agents. RESULTS The review focuses on anti-cancer and related properties of lichen extracts and metabolites that include their anti-oxidative, anti-inflammatory, anti-proliferative and pro-apoptotic, cancer stemness reduction, activities and, the potential of inhibition of cancer-associated Epithelial-mesenchymal transition (EMT) that is responsible for multiple drug-resistance and metastasis of cancer cells in a large proportion of cases. CONCLUSION Lichens can be the repertoire of a plethora of lichen metabolites with putative bioactive potential, which is needed to be explored in order to find out novel anti-cancer drugs.
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Affiliation(s)
- Ankita H Tripathi
- Department of Biotechnology, Kumaun University Campus, Bhimtal, Uttarakhand, India
| | - Nidhi Negi
- Department of Chemistry, D.S.B. Campus, Kumaun University, Nainital, Uttarakhand, India
| | - Rekha Gahtori
- Department of Biotechnology, Kumaun University Campus, Bhimtal, Uttarakhand, India-263136; b Department of Chemistry, D.S.B. Campus, Kumaun University, Nainital, Uttarakhand, India
| | - Amrita Kumari
- Department of Biotechnology, Kumaun University Campus, Bhimtal, Uttarakhand, India-263136; b Department of Chemistry, D.S.B. Campus, Kumaun University, Nainital, Uttarakhand, India
| | - Penny Joshi
- Department of Chemistry, D.S.B. Campus, Kumaun University, Nainital, Uttarakhand. 0
| | - Lalit M Tewari
- Department of Botany, D.S.B. Campus, Kumaun University, Nainital, Uttarakhand, India
| | - Yogesh Joshi
- Department of Botany, University of Rajasthan, Jaipur, Rajasthan, India
| | - Rajesh Bajpai
- CSIR-National Botanical Research Institute, Lucknow, India
| | - Dalip K Upreti
- CSIR-National Botanical Research Institute, Lucknow, India
| | - Santosh K Upadhyay
- Department of Biotechnology, Kumaun University Campus, Bhimtal, Uttarakhand, India
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Kaur R, Kumari A, Sharma G, Singh D, Kaur R. Biodegradation of endocrine disrupting chemicals benzyl butyl phthalate and dimethyl phthalate by Bacillus marisflavi RR014. J Appl Microbiol 2021; 131:1274-1288. [PMID: 33599367 DOI: 10.1111/jam.15045] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Revised: 02/05/2021] [Accepted: 02/15/2021] [Indexed: 11/27/2022]
Abstract
AIM The objectives of the present study were to explore the benzyl butyl phthalate (BBP) and dimethyl phthalate (DMP) degradation potential of Bacillus marisflavi RR014 isolated from the tap water of public toilet and also to optimize the phthalates degradation process using response surface methodology. METHODS AND RESULTS The minimal salt medium was used for the biodegradation analysis of phthalates. The quantification of phthalates and their intermediate metabolites identification were done by using UHPLC and LC-MS/MS respectively. The results revealed that B. marisflavi RR014 is capable of degrading both the phthalates under varying pH, temperature and salinity conditions. The formation of phthalic acid from the breakdown of BBP and DMP (500 mg l-1 ) in the medium was observed after 24 h. After 72 h, 61% of BBP and 98·9% of DMP in the medium was degraded as monitored by UHPLC. The identification of intermediate metabolites by LC-MS/MS revealed that hydrolysis of BBP and DMP produces phthalic acid. CONCLUSIONS The degradation rate of both the phthalates was increased as the parameters increased up to an optimum level. The three environmental factors (pH, temperature and salt concentration) strongly affect the rate of degradation of both the phthalates. The maximum degradation rate for both the phthalates was achieved at pH 7, temperature 35°C and salt concentration of 1% as observed from the central composite experimental design. SIGNIFICANCE AND IMPACT OF THE STUDY It is the first report on the phthalates biodegradation potential of B. marisflavi RR014 isolated from the tap water of public toilet. The bacterium is capable of degrading BBP and DMP under varying pH, temperature and salinity, therefore, ideal to treat the phthalate contaminated environments.
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Affiliation(s)
- R Kaur
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, Punjab, India
| | - A Kumari
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, Punjab, India
| | - G Sharma
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, Punjab, India
| | - D Singh
- Department of Molecular Biology and Biochemistry, Guru Nanak Dev University, Amritsar, Punjab, India
| | - R Kaur
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, Punjab, India
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Kumari A, Kaur T, Ranjan P, Chopra S, Sarkar S, Baitha U. Workplace violence against doctors: Characteristics, risk factors, and mitigation strategies. J Postgrad Med 2020; 66:149-154. [PMID: 32675451 PMCID: PMC7542052 DOI: 10.4103/jpgm.jpgm_96_20] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Workplace violence is a major occupational issue concerning doctors that has a significant impact on their physical and psychological well-being. This ultimately affects the health care services of the country. Patient-led episodes of verbal violence are more prevalent in Asian countries, especially in the emergency department, psychiatric wards, and intensive care units, mostly faced by junior doctors and residents. Some common precursors of violence against doctors are patients and their attendants' dissatisfaction and low impulse control, poor administration, miscommunication, infrastructural issues especially differences in services between private and public hospitals, and negative media portrayal of doctors. The assessment of risk factors, development and implementation of workplace violence programs, and addressing underreporting of violent episodes have been suggested as some successful organizational mitigation strategies. Recommendations on the management of workplace violence include the development of participative, gender-based, culture-based, nondiscriminatory, and systematic strategies to deal with issues related to violence. This article aims to present a comprehensive review of workplace violence against doctors, discussing the prevalence, degree of violence, predictors, impact on physical and psychological health and intervention strategies to devise practical actions against workplace violence.
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Affiliation(s)
- A Kumari
- Department of Obstetrics and Gynaecology, AIIMS, New Delhi, India
| | - T Kaur
- Department of Medicine, AIIMS, New Delhi, India
| | - P Ranjan
- Department of Medicine, AIIMS, New Delhi, India
| | - S Chopra
- Department of Home Science, AIIMS, New Delhi, India
| | - S Sarkar
- Department of Psychiatry and National Drug Dependence Treatment Centre, AIIMS, New Delhi, India
| | - U Baitha
- Department of Medicine, AIIMS, New Delhi, India
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Bhusal S, Chatterjee S, Chakraborty S, Kumari A, Bachianathan S, Mahato A, Lal P, Gupta S, Solomon P, Das K, Mandal S. PO-1797: Dosimetric analysis of simultaneous integrated boost in the HYPORT Adjuvant Trial (NCT03788213). Radiother Oncol 2020. [DOI: 10.1016/s0167-8140(21)01815-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Santosham R, Chatterjee S, Chakraborty S, Mahata A, Mandal S, Das A, Kumari A, Ray S, Ahmed R. PO-0985: Hypofractionated radiotherapy with SIB in advanced incurable breast cancer-HYPORT B study. Radiother Oncol 2020. [DOI: 10.1016/s0167-8140(21)01003-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Kumari A, Panigrahi A, Roy A, Panda J. Impaired Quality of Life and Its Determinants among Postmenopausal Women of Slum Communities in Bhubaneswar, India. J Midlife Health 2020; 11:149-155. [PMID: 33384538 PMCID: PMC7718935 DOI: 10.4103/jmh.jmh_111_19] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2019] [Revised: 04/11/2020] [Accepted: 06/22/2020] [Indexed: 11/04/2022] Open
Abstract
BACKGROUND The severity of menopausal symptoms negatively impacts a woman's quality of life (QoL). OBJECTIVE The aim of the study was to assess the prevalence of menopause-related impaired QoL and determine its associated factors among postmenopausal women living in slum areas of Bhubaneswar, India. MATERIALS AND METHODS This cross-sectional study was conducted among 198 postmenopausal women aged 45-65 years during the year 2016-2017. The Menopause Rating Scale (MRS) was used to assess the prevalence and severity of menopausal symptoms. RESULTS Joint and muscular discomfort was the most prevalent moderate-to-severe symptom (90.4%), followed by hot flushes (72.8%), irritability (67.2%), and physical and mental exhaustion (64.2%). More than two-third (133, 67.2%) of women had impaired QoL (severe total MRS score ≥17). Multivariate logistic regression analysis revealed that impaired QoL was associated younger age (adjusted odds ratio [AOR]: 4.6, 95% confidence interval [CI]: 2.12-9.98), tobacco consumption (AOR: 2.0, 95% CI: 1.05-3.82), not being satisfied in relation with husband (AOR: 3.33, 95% CI: 1.84-6.06), not having autonomy in health-care decision-making in the family (AOR: 2.30, 95% CI: 1.12-4.73), history of reproductive tract infection (AOR: 4.57, 95% CI: 1.71-12.19), and earlier onset of menopause (AOR: 3.26, 95% CI: 1.18-8.96). CONCLUSION The point prevalence of menopause-related impaired QOL in postmenopausal women living in slums of Bhubaneswar was high. Incorporating these determinants in the existing strategies can be useful to improve the QoL of these women.
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Affiliation(s)
- Amrita Kumari
- Department of Community Medicine, PRM Medical College and Hospital, Baripada, Odisha, India
| | - Ansuman Panigrahi
- Department of Community Medicine and, Kalinga Institute of Medical Sciences, KIIT University, Bhubaneswar, Odisha, India
| | - Adrija Roy
- Department of Community Medicine and Family Medicine, All India Institute of Medical Sciences, Bhubaneswar, Odisha, India
| | - Jyochnamayi Panda
- Department of Obstetrics and Gynaecology, Kalinga Institute of Medical Sciences, KIIT University, Odisha, India
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Jain A, Prajapati SK, Kumari A, Mody N, Bajpai M. Engineered nanosponges as versatile biodegradable carriers: An insight. J Drug Deliv Sci Technol 2020. [DOI: 10.1016/j.jddst.2020.101643] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Singh N, Baranwal H, Kumari A. XP endo ® file: An update review. Indian J Dent Sci 2020. [DOI: 10.4103/ijds.ijds_74_19] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Dwivedi D, Kumari A, Rathi S, Mylavarapu SVS, Sharma M. Correction: The dynein adaptor Hook2 plays essential roles in mitotic progression and cytokinesis. J Cell Biol 2019; 218:3526-3527. [PMID: 31462455 PMCID: PMC6781446 DOI: 10.1083/jcb.20180418308222019c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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Kumar H, Pushpa K, Kumari A, Verma K, Pergu R, Mylavarapu SVS. The exocyst complex and Rab5 are required for abscission by localizing ESCRT III subunits to the cytokinetic bridge. J Cell Sci 2019; 132:jcs.226001. [PMID: 31221728 PMCID: PMC6679584 DOI: 10.1242/jcs.226001] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2018] [Accepted: 06/14/2019] [Indexed: 01/26/2023] Open
Abstract
Cytokinesis is the final step of cell division following chromosome segregation that generates two daughter cells. The conserved exocyst complex is required for scission of the intercellular cytokinetic bridge, although the molecular mechanisms it employs in this process are unclear. We identify and validate the early endocytic GTPase Rab5 as interacting with the exocyst complex in mammalian cells. Rab5 localizes in the cytokinetic bridge and on the midbody ring in a manner similar to the exocyst complex. Depletion of Rab5 led to delayed abscission. Caenorhabditis elegans orthologs of both exocyst complex subunits and Rab5 localize along the cleavage furrow and are required for cytokinesis in early embryos. Cytokinetic cells depleted of either Rab5 or the exocyst subunits Exoc3 and Exoc4 showed impaired deposition of the endosomal sorting complexes required for transport (ESCRT) III subunits CHMP2B and/or CHMP4B near the midbody ring. The study reveals an evolutionarily conserved role for the early endocytic marker Rab5 in cytokinetic abscission. In addition, it uncovers a key requirement of the exocyst and Rab5 for the delivery of components of the membrane-severing ESCRT III machinery to complete cytokinesis. Summary: The conserved exocytic vesicle-tethering exocyst complex and the endocytic master regulator Rab5 mutually interact and are required to deliver the ESCRT III membrane scission apparatus for completion of cytokinesis.
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Affiliation(s)
- Harsh Kumar
- Laboratory of Cellular Dynamics, Regional Centre for Biotechnology, NCR Biotech Science Cluster, 3rd Milestone Faridabad-Gurgaon Expressway, Faridabad, Haryana 121001, India.,Manipal Academy of Higher Education, Manipal, Karnataka 576104, India
| | - Kumari Pushpa
- Laboratory of Cellular Dynamics, Regional Centre for Biotechnology, NCR Biotech Science Cluster, 3rd Milestone Faridabad-Gurgaon Expressway, Faridabad, Haryana 121001, India
| | - Amrita Kumari
- Laboratory of Cellular Dynamics, Regional Centre for Biotechnology, NCR Biotech Science Cluster, 3rd Milestone Faridabad-Gurgaon Expressway, Faridabad, Haryana 121001, India.,Manipal Academy of Higher Education, Manipal, Karnataka 576104, India
| | - Kuldeep Verma
- Laboratory of Cellular Dynamics, Regional Centre for Biotechnology, NCR Biotech Science Cluster, 3rd Milestone Faridabad-Gurgaon Expressway, Faridabad, Haryana 121001, India
| | - Rajaiah Pergu
- Laboratory of Cellular Dynamics, Regional Centre for Biotechnology, NCR Biotech Science Cluster, 3rd Milestone Faridabad-Gurgaon Expressway, Faridabad, Haryana 121001, India.,Manipal Academy of Higher Education, Manipal, Karnataka 576104, India
| | - Sivaram V S Mylavarapu
- Laboratory of Cellular Dynamics, Regional Centre for Biotechnology, NCR Biotech Science Cluster, 3rd Milestone Faridabad-Gurgaon Expressway, Faridabad, Haryana 121001, India .,Manipal Academy of Higher Education, Manipal, Karnataka 576104, India
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Kumari A, Wu DT, Motiani KK, Wu KY, Palumbo M, Tran SD. Career pathways and professional skills of postgraduate students from a dental research-intensive programme. Eur J Dent Educ 2019; 23:143-150. [PMID: 30582648 DOI: 10.1111/eje.12413] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Accepted: 12/07/2018] [Indexed: 06/09/2023]
Abstract
BACKGROUND With current global trends in postgraduate education, graduate programmes must make evidence-based improvements to offer the best programme that aligns with student needs and prepare them for their future career prospects. The aim of this cross-sectional study was to investigate the postgraduation career pathways of MSc and PhD students who graduated within the past 15 years from the McGill University Postgraduate Dental Research Program. MATERIALS AND METHODS An online questionnaire, composed of 10 closed-ended format items, was used that covered domains such as student profile, career profile, postgraduate skill development, job search experience and satisfaction. Descriptive statistics and interpretative qualitative analysis were used to evaluate student feedback. RESULTS Sixty-six students responded to the online survey, out of which sixty-two students completed the survey (61% participation rate). The majority of the graduate students, 67% (n = 44), obtained MSc degree in Dental Sciences. Overall, our results showed that most graduates started careers in academia in their original field of study and were satisfied with their income. Most graduates reported "critical and creative thinking" to be the strongest acquired skills during their postgraduate training and identified fierce competition for their position of interest as the main challenge after graduation. DISCUSSION AND CONCLUSION Our results showed that graduates in dental research appeared to be overall satisfied with their careers after postgraduate research training, both in terms of scope of practice and income. However, strong competition in obtaining the position of their interest seemed to be the main obstacle after graduation.
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Affiliation(s)
- Amrita Kumari
- Faculty of Dentistry, McGill University, Montreal, Quebec, Canada
| | - David T Wu
- Faculty of Dentistry, McGill University, Montreal, Quebec, Canada
| | | | - Kevin Y Wu
- Faculty of Dentistry, McGill University, Montreal, Quebec, Canada
| | - Maria Palumbo
- Faculty of Dentistry, McGill University, Montreal, Quebec, Canada
| | - Simon D Tran
- Faculty of Dentistry, McGill University, Montreal, Quebec, Canada
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35
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Dwivedi D, Kumari A, Rathi S, Mylavarapu SVS, Sharma M. The dynein adaptor Hook2 plays essential roles in mitotic progression and cytokinesis. J Cell Biol 2019; 218:871-894. [PMID: 30674580 PMCID: PMC6400558 DOI: 10.1083/jcb.201804183] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Revised: 10/29/2018] [Accepted: 12/07/2018] [Indexed: 12/16/2022] Open
Abstract
Hook proteins are evolutionarily conserved dynein adaptors that promote assembly of highly processive dynein-dynactin motor complexes. Mammals express three Hook paralogs, namely Hook1, Hook2, and Hook3, that have distinct subcellular localizations and expectedly, distinct cellular functions. Here we demonstrate that Hook2 binds to and promotes dynein-dynactin assembly specifically during mitosis. During the late G2 phase, Hook2 mediates dynein-dynactin localization at the nuclear envelope (NE), which is required for centrosome anchoring to the NE. Independent of its binding to dynein, Hook2 regulates microtubule nucleation at the centrosome; accordingly, Hook2-depleted cells have reduced astral microtubules and spindle positioning defects. Besides the centrosome, Hook2 localizes to and recruits dynactin and dynein to the central spindle. Dynactin-dependent targeting of centralspindlin complex to the midzone is abrogated upon Hook2 depletion; accordingly, Hook2 depletion results in cytokinesis failure. We find that the zebrafish Hook2 homologue promotes dynein-dynactin association and was essential for zebrafish early development. Together, these results suggest that Hook2 mediates assembly of the dynein-dynactin complex and regulates mitotic progression and cytokinesis.
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Affiliation(s)
- Devashish Dwivedi
- Department of Biological Sciences, Indian Institute of Science Education and Research, Mohali, India
| | - Amrita Kumari
- Laboratory of Cellular Dynamics, Regional Centre for Biotechnology, Faridabad, India.,Affiliated to Manipal Academy of Higher Education, Manipal, India
| | - Siddhi Rathi
- Department of Biological Sciences, Indian Institute of Science Education and Research, Mohali, India
| | - Sivaram V S Mylavarapu
- Laboratory of Cellular Dynamics, Regional Centre for Biotechnology, Faridabad, India.,Affiliated to Manipal Academy of Higher Education, Manipal, India
| | - Mahak Sharma
- Department of Biological Sciences, Indian Institute of Science Education and Research, Mohali, India
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Affiliation(s)
- Amrita Kumari
- Pharmaceutics Research Projects Laboratory, Department of Pharmaceutical Sciences, Dr Hari Singh Gour Central University, Sagar, MP, India
- Department of Pharmacology, Armed Forces Medical College, Pune, Maharashtra, India
| | - Ankit Jain
- Institute of Pharmaceutical Research, GLA University, Mathura, UP, India
| | - Pooja Hurkat
- Pharmaceutics Research Projects Laboratory, Department of Pharmaceutical Sciences, Dr Hari Singh Gour Central University, Sagar, MP, India
| | - Ankita Tiwari
- Pharmaceutics Research Projects Laboratory, Department of Pharmaceutical Sciences, Dr Hari Singh Gour Central University, Sagar, MP, India
| | - Sanjay K. Jain
- Pharmaceutics Research Projects Laboratory, Department of Pharmaceutical Sciences, Dr Hari Singh Gour Central University, Sagar, MP, India
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Ramprakash S, Agarwal RK, Dhanya R, Sedai A, Kumari A, Parmar L, Srinivas R, Kakulamari VR, Marwah P, Soni R, Williams S, Rathnayake W, Sen S, Tulpule S, Faulkner L. Rejection of paternal vs maternal fully matched bone marrow grafts in children with thalassemia. Bone Marrow Transplant 2017; 52:1585-1586. [PMID: 28920948 PMCID: PMC5671933 DOI: 10.1038/bmt.2017.199] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- S Ramprakash
- Bone Marrow Transplant Unit, People Tree Hospitals, Bangalore, India
| | | | - R Dhanya
- Sankalp India Foundation, Bangalore, India
| | - A Sedai
- Sankalp India Foundation, Bangalore, India
| | - A Kumari
- Sankalp India Foundation, Bangalore, India
| | - L Parmar
- Sankalp India Foundation, Bangalore, India
| | - R Srinivas
- Sankalp India Foundation, Bangalore, India
| | | | - P Marwah
- Bone Marrow Transplant Unit, South East Asia Institute for Thalassemia, Jaipur, India
| | - R Soni
- Bone Marrow Transplant Unit, South East Asia Institute for Thalassemia, Jaipur, India
| | - S Williams
- Bone Marrow Transplant Unit, Nawaloka Hospital, Colombo, Sri Lanka
| | - W Rathnayake
- Bone Marrow Transplant Unit, Nawaloka Hospital, Colombo, Sri Lanka
| | - S Sen
- Bone Marrow Transplant Unit, Kokilaben Dhirubhai Ambani Hospital, Mumbai, India
| | - S Tulpule
- Bone Marrow Transplant Unit, Kokilaben Dhirubhai Ambani Hospital, Mumbai, India
| | - L Faulkner
- Cure2Children Foundation, Florence, Italy
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Kumari A, Saini V, Jain P, Gupta M. Prediction of Delivery in Women with Threatening Preterm Labour using Phosphorylated Insulin-Like Growth Factor Binding Protein-1 and Cervical Length using Transvaginal Ultrasound. J Clin Diagn Res 2017; 11:QC01-QC04. [PMID: 29207782 PMCID: PMC5713804 DOI: 10.7860/jcdr/2017/28794.10585] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2017] [Accepted: 07/31/2017] [Indexed: 11/24/2022]
Abstract
INTRODUCTION Preterm delivery remains a challenge in Obstetrics as it is responsible for significant cause of perinatal morbidity and mortality. At present there is no standard test for prediction of preterm labour for timely referral to a center with NICU facilities. AIM To evaluate the effectiveness of the cervical phosphorylated insulin like growth factor binding protein-1(phIGFBP-1), cervical length measurement and combination of phIGFBP-1 with cervical length for Predicting Preterm Labour (PTL). MATERIALS AND METHODS It was a observational prospective study done from January 2014 to April 2015 in Department of Obstetrics and Gynaecology, NDMC Medical College and Hindu Rao Hospital, Delhi, India. A total of 100 women with singleton pregnancy, between 24 and 36 weeks of gestation with complaint of uterine contractions were randomly selected. These women were subjected to detect phIGFBP-1 in cervical secretions and cervical length measurement by Transvaginal Sonography (TVS). Result of the test, cervical length and time lapse between test and delivery was noted and the results were analysed. The cervical length less than 25 mm was used as a cut off point for predicting pre-term delivery. Data was analysed using SPSS software version 20.0. RESULTS The Negative Predictive Value (NPV) of phIGFBP-1 and cervical length was similar (95.2% vs 94.05%) respectively for prediction of preterm labour within one week of admission and 93.92% vs 94.80% at 37 weeks of gestational age. Combined test had higher NPV of 96.38% at 34 weeks of gestation and 94% within two days of admission. Positive Predictive Value (PPV) was low for both the test and combining the two-test did not have any advantage as far as PPV was concerned. Receiver Operating Characteristic (ROC) curve showed that the combined test had a superior result in predicting PTL compared to either phIGFBP-1 or cervical length. The combined test had steepest ROC curve at < 34 weeks of gestation (AUC-0.83 with 95% CI). CONCLUSION The phIGFBP-1 test and cervical length have an almost equivalent ability to predict preterm delivery independently. The combined use of phIGFBP-1 and TVS for cervical length shows an increase in efficacy in predicting preterm labour.
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Affiliation(s)
- Amrita Kumari
- Senior Resident, Department of Obstetrics and Gynaecology, Hindu Rao Hospital and Associated NDMC Medical College, Delhi, India
| | - Vandana Saini
- Senior Specialist, Department of Obstetrics and Gynaecology, Hindu Rao Hospital and Associated NDMC Medical College, Delhi, India
| | - P.K. Jain
- Senior Specialist, Department of Radiology, Hindu Rao Hospital and Associated NDMC Medical College, Delhi, India
| | - Mamta Gupta
- Senior Specialist and Head, Department of Obstetrics and Gynaecology, Hindu Rao Hospital and Associated NDMC Medical College, Delhi, India
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Kamal R, Pathak V, Kumari A, Natrajan M, Katoch K, Kar HK. Addition of Mycobacterium indicus pranii vaccine as an immunotherapeutic to standard chemotherapy in borderline leprosy: a double-blind study to assess clinical improvement (preliminary report). Br J Dermatol 2017; 176:1388-1389. [PMID: 27518926 DOI: 10.1111/bjd.14971] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- R Kamal
- Department of Clinical Medicine, National JALMA Institute of Leprosy and Other Mycobacterial Diseases, Tajganj Agra, India
| | - V Pathak
- Department of Clinical Medicine, National JALMA Institute of Leprosy and Other Mycobacterial Diseases, Tajganj Agra, India
| | - A Kumari
- Department of Clinical Medicine, National JALMA Institute of Leprosy and Other Mycobacterial Diseases, Tajganj Agra, India
| | - M Natrajan
- Department of Clinical Medicine, National JALMA Institute of Leprosy and Other Mycobacterial Diseases, Tajganj Agra, India
| | - K Katoch
- Department of Clinical Medicine, National JALMA Institute of Leprosy and Other Mycobacterial Diseases, Tajganj Agra, India
| | - H K Kar
- Post Graduate Institute of Medical Education & Research, Dr Ram Manoher Lohia Hospital, New Delhi, India
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Itkin T, Kumari A, Schneider E, Gur-Cohen S, Ludwig C, Brooks R, Kollet O, Golan K, Khatib-Massalha E, Russo CM, Chisholm JD, Rouhi A, Geiger H, Hornstein E, Kerr WG, Kuchenbauer F, Lapidot T. MicroRNA-155 promotes G-CSF-induced mobilization of murine hematopoietic stem and progenitor cells via propagation of CXCL12 signaling. Leukemia 2017; 31:1247-1250. [PMID: 28174416 DOI: 10.1038/leu.2017.50] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- T Itkin
- Department of Immunology, Weizmann Institute of Science, Rehovot, Israel.,Department of Medicine, Ansary Stem Cell Institute, Weill Cornell Medicine, New York, NY, USA
| | - A Kumari
- Department of Immunology, Weizmann Institute of Science, Rehovot, Israel
| | - E Schneider
- Department of Internal Medicine III, Ulm University, Ulm, Germany
| | - S Gur-Cohen
- Department of Immunology, Weizmann Institute of Science, Rehovot, Israel
| | - C Ludwig
- Department of Internal Medicine III, Ulm University, Ulm, Germany
| | - R Brooks
- Department of Microbiology and Immunology, SUNY Upstate Medical University, Syracuse, NY, USA
| | - O Kollet
- Department of Immunology, Weizmann Institute of Science, Rehovot, Israel
| | - K Golan
- Department of Immunology, Weizmann Institute of Science, Rehovot, Israel
| | - E Khatib-Massalha
- Department of Immunology, Weizmann Institute of Science, Rehovot, Israel
| | - C M Russo
- Department of Chemistry, Syracuse University, Syracuse, NY, USA
| | - J D Chisholm
- Department of Chemistry, Syracuse University, Syracuse, NY, USA
| | - A Rouhi
- Department of Internal Medicine III, Ulm University, Ulm, Germany
| | - H Geiger
- Department of Dermatology and Allergic Diseases, Institute for Molecular Medicine and Aging Research Center, University of Ulm, Ulm, Germany
| | - E Hornstein
- Department of Molecular Genetics, Weizmann Institute of Science, Rehovot, Israel
| | - W G Kerr
- Department of Microbiology and Immunology, SUNY Upstate Medical University, Syracuse, NY, USA.,Department of Chemistry, Syracuse University, Syracuse, NY, USA.,Department of Pediatrics, SUNY Upstate Medical University, Syracuse, NY, USA
| | - F Kuchenbauer
- Department of Internal Medicine III, Ulm University, Ulm, Germany
| | - T Lapidot
- Department of Immunology, Weizmann Institute of Science, Rehovot, Israel
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Kumari A, Koyama T, Hatano K, Matsuoka K. Synthetic assembly of novel avidin-biotin-GlcNAc (ABG) complex as an attractive bio-probe and its interaction with wheat germ agglutinin (WGA). Bioorg Chem 2016; 68:219-25. [DOI: 10.1016/j.bioorg.2016.08.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2016] [Revised: 07/21/2016] [Accepted: 08/03/2016] [Indexed: 12/15/2022]
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Ranjan N, Singh RP, Kumari A, Upadhyay R. Primary treatment of female urethral stricture by nurses leads to improved outcomes. Int J Urol Nurs 2016. [DOI: 10.1111/ijun.12105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Sharma NK, Kumar A, Kumari A, Tokar EJ, Waalkes MP, Bortner CD, Williams J, Ehrenshaft M, Mason RP, Sinha BK. Nitric Oxide Down-Regulates Topoisomerase I and Induces Camptothecin Resistance in Human Breast MCF-7 Tumor Cells. PLoS One 2015; 10:e0141897. [PMID: 26540186 PMCID: PMC4635000 DOI: 10.1371/journal.pone.0141897] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2015] [Accepted: 10/14/2015] [Indexed: 11/19/2022] Open
Abstract
Camptothecin (CPT), a topoisomerase I poison, is an important drug for the treatment of solid tumors in the clinic. Nitric oxide (·NO), a physiological signaling molecule, is involved in many cellular functions, including cell proliferation, survival and death. We have previously shown that ·NO plays a significant role in the detoxification of etoposide (VP-16), a topoisomerase II poison in vitro and in human melanoma cells. ·NO/·NO-derived species are reported to modulate activity of several important cellular proteins. As topoisomerases contain a number of free sulfhydryl groups which may be targets of ·NO/·NO-derived species, we have investigated the roles of ·NO/·NO-derived species in the stability and activity of topo I. Here we show that ·NO/·NO-derived species induces a significant down-regulation of topoisomerase I protein via the ubiquitin/26S proteasome pathway in human colon (HT-29) and breast (MCF-7) cancer cell lines. Importantly, ·NO treatment induced a significant resistance to CPT only in MCF-7 cells. This resistance to CPT did not result from loss of topoisomerase I activity as there were no differences in topoisomerase I-induced DNA cleavage in vitro or in tumor cells, but resulted from the stabilization/induction of bcl2 protein. This up-regulation of bcl2 protein in MCF-7 cells was wtp53 dependent as pifithrine-α, a small molecule inhibitor of wtp53 function, completely reversed CPT resistance, suggesting that wtp53 and bcl2 proteins played important roles in CPT resistance. Because tumors in vivo are heterogeneous and contaminated by infiltrating macrophages, ·NO-induced down-regulation of topoisomerase I protein combined with bcl2 protein stabilization could render certain tumors highly resistant to CPT and drugs derived from it in the clinic.
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Affiliation(s)
- Nilesh K. Sharma
- Immunity, Inflammation and Disease Laboratory, National Institute of Environmental Health Sciences, NIH, Research Triangle, Park, Durham, North Carolina, United States of America
| | - Ashutosh Kumar
- Immunity, Inflammation and Disease Laboratory, National Institute of Environmental Health Sciences, NIH, Research Triangle, Park, Durham, North Carolina, United States of America
| | - Amrita Kumari
- Immunity, Inflammation and Disease Laboratory, National Institute of Environmental Health Sciences, NIH, Research Triangle, Park, Durham, North Carolina, United States of America
| | - Erik J. Tokar
- National Toxicology Program, National Institute of Environmental Health Sciences, NIH, Research Triangle, Park, Durham, North Carolina, United States of America
| | - Michael P. Waalkes
- National Toxicology Program, National Institute of Environmental Health Sciences, NIH, Research Triangle, Park, Durham, North Carolina, United States of America
| | - Carl D. Bortner
- Laboratory of Signal Transduction, National Institute of Environmental Health Sciences, NIH, Research Triangle, Park, Durham, North Carolina, United States of America
| | - Jason Williams
- Laboratory of Structural Biology, National Institute of Environmental Health Sciences, NIH, Research Triangle, Park, Durham, North Carolina, United States of America
| | - Marilyn Ehrenshaft
- Immunity, Inflammation and Disease Laboratory, National Institute of Environmental Health Sciences, NIH, Research Triangle, Park, Durham, North Carolina, United States of America
| | - Ronald P. Mason
- Immunity, Inflammation and Disease Laboratory, National Institute of Environmental Health Sciences, NIH, Research Triangle, Park, Durham, North Carolina, United States of America
| | - Birandra K. Sinha
- Immunity, Inflammation and Disease Laboratory, National Institute of Environmental Health Sciences, NIH, Research Triangle, Park, Durham, North Carolina, United States of America
- * E-mail:
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Kumari A, Papenfus HB, Kulkarni MG, Pošta M, Van Staden J. Effect of smoke derivatives on in vitro pollen germination and pollen tube elongation of species from different plant families. Plant Biol (Stuttg) 2015; 17:825-830. [PMID: 25545791 DOI: 10.1111/plb.12300] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2014] [Accepted: 12/18/2014] [Indexed: 06/04/2023]
Abstract
Plant-derived smoke stimulates seed germination in numerous plant species. Smoke also has a positive stimulatory effect on pollen germination and pollen tube growth. The range of plant families affected my smoke still needs to be established since the initial study was restricted to only three species from the Amaryllidaceae. The effects of smoke-water (SW) and the smoke-derived compounds, karrikinolide (KAR1 ) and trimethylbutenolide (TMB) on pollen growth characteristics were evaluated in seven different plant families. Smoke-water (1:1000 and 1:2000 v:v) combined with either Brewbaker and Kwack's (BWK) medium or sucrose and boric acid (SB) medium significantly improved pollen germination and pollen tube growth in Aloe maculata All., Kniphofia uvaria Oken, Lachenalia aloides (L.f.) Engl. var. aloides and Tulbaghia simmleri P. Beauv. Karrikinolide (10(-6) and 10(-7) m) treatment significantly improved pollen tube growth in A. maculata, K. uvaria, L. aloides and Nematanthus crassifolius (Schott) Wiehle compared to the controls. BWK or SB medium containing TMB (10(-3) m) produced significantly longer pollen tubes in A. maculata, K. uvaria and N. crassifolius. These results indicate that plant-derived smoke and the smoke-isolated compounds may stimulate pollen growth in a wide range of plant species.
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Affiliation(s)
- A Kumari
- Research Centre for Plant Growth and Development, School of Life Sciences, University of KwaZulu-Natal Pietermaritzburg, Scottsville, South Africa
| | - H B Papenfus
- Research Centre for Plant Growth and Development, School of Life Sciences, University of KwaZulu-Natal Pietermaritzburg, Scottsville, South Africa
| | - M G Kulkarni
- Research Centre for Plant Growth and Development, School of Life Sciences, University of KwaZulu-Natal Pietermaritzburg, Scottsville, South Africa
| | - M Pošta
- Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, Prague, Czech Republic
| | - J Van Staden
- Research Centre for Plant Growth and Development, School of Life Sciences, University of KwaZulu-Natal Pietermaritzburg, Scottsville, South Africa
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Kumari A, Kant R, Sharma P. Estimating the Economic Burden of Malaria and Assessing Its Relationship with Socio-Economic Condition in Rohtak and Mewat Districts of Haryana, India. ACTA ACUST UNITED AC 2015. [DOI: 10.9734/bjmmr/2015/15952] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Tursky ML, Beck D, Thoms JAI, Huang Y, Kumari A, Unnikrishnan A, Knezevic K, Evans K, Richards LA, Lee E, Morris J, Goldberg L, Izraeli S, Wong JWH, Olivier J, Lock RB, MacKenzie KL, Pimanda JE. Overexpression of ERG in cord blood progenitors promotes expansion and recapitulates molecular signatures of high ERG leukemias. Leukemia 2014; 29:819-27. [PMID: 25306899 DOI: 10.1038/leu.2014.299] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2014] [Revised: 09/04/2014] [Accepted: 10/03/2014] [Indexed: 02/07/2023]
Abstract
High expression of the ETS family transcription factor ERG is associated with poor clinical outcome in acute myeloid leukemia (AML) and acute T-cell lymphoblastic leukemia (T-ALL). In murine models, high ERG expression induces both T-ALL and AML. However, no study to date has defined the effect of high ERG expression on primary human hematopoietic cells. In the present study, human CD34+ cells were transduced with retroviral vectors to elevate ERG gene expression to levels detected in high ERG AML. RNA sequencing was performed on purified populations of transduced cells to define the effects of high ERG on gene expression in human CD34+ cells. Integration of the genome-wide expression data with other data sets revealed that high ERG drives an expression signature that shares features of normal hematopoietic stem cells, high ERG AMLs, early T-cell precursor-ALLs and leukemic stem cell signatures associated with poor clinical outcome. Functional assays linked this gene expression profile to enhanced progenitor cell expansion. These results support a model whereby a stem cell gene expression network driven by high ERG in human cells enhances the expansion of the progenitor pool, providing opportunity for the acquisition and propagation of mutations and the development of leukemia.
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Affiliation(s)
- M L Tursky
- 1] Adult Cancer Program, Prince of Wales Clinical School, Lowy Cancer Research Centre, UNSW, Sydney, Australia [2] Children's Cancer Institute Australia, Lowy Cancer Research Centre, UNSW, Sydney, Australia
| | - D Beck
- Adult Cancer Program, Prince of Wales Clinical School, Lowy Cancer Research Centre, UNSW, Sydney, Australia
| | - J A I Thoms
- Adult Cancer Program, Prince of Wales Clinical School, Lowy Cancer Research Centre, UNSW, Sydney, Australia
| | - Y Huang
- Adult Cancer Program, Prince of Wales Clinical School, Lowy Cancer Research Centre, UNSW, Sydney, Australia
| | - A Kumari
- Children's Cancer Institute Australia, Lowy Cancer Research Centre, UNSW, Sydney, Australia
| | - A Unnikrishnan
- Adult Cancer Program, Prince of Wales Clinical School, Lowy Cancer Research Centre, UNSW, Sydney, Australia
| | - K Knezevic
- Adult Cancer Program, Prince of Wales Clinical School, Lowy Cancer Research Centre, UNSW, Sydney, Australia
| | - K Evans
- Children's Cancer Institute Australia, Lowy Cancer Research Centre, UNSW, Sydney, Australia
| | - L A Richards
- Children's Cancer Institute Australia, Lowy Cancer Research Centre, UNSW, Sydney, Australia
| | - E Lee
- Children's Cancer Institute Australia, Lowy Cancer Research Centre, UNSW, Sydney, Australia
| | - J Morris
- Department of Obstetrics and Gynaecology, Royal North Shore Hospital, University of Sydney, Sydney, Australia
| | - L Goldberg
- 1] Cancer Research Center, Sheba Medical Center, Tel Hashomer, Ramat Gan, Israel [2] Department of Human Molecular Genetics and Biochemistry, Tel Aviv University, Tel Aviv, Israel
| | - S Izraeli
- 1] Cancer Research Center, Sheba Medical Center, Tel Hashomer, Ramat Gan, Israel [2] Department of Human Molecular Genetics and Biochemistry, Tel Aviv University, Tel Aviv, Israel
| | - J W H Wong
- Adult Cancer Program, Prince of Wales Clinical School, Lowy Cancer Research Centre, UNSW, Sydney, Australia
| | - J Olivier
- School of Mathematics and Statistics, UNSW, Sydney, Australia
| | - R B Lock
- Children's Cancer Institute Australia, Lowy Cancer Research Centre, UNSW, Sydney, Australia
| | - K L MacKenzie
- Children's Cancer Institute Australia, Lowy Cancer Research Centre, UNSW, Sydney, Australia
| | - J E Pimanda
- 1] Adult Cancer Program, Prince of Wales Clinical School, Lowy Cancer Research Centre, UNSW, Sydney, Australia [2] Department of Haematology, Prince of Wales Hospital, Sydney, Australia
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Kumari A, Iwasaki T, Pyndiah S, Cassimere EK, Palani CD, Sakamuro D. Regulation of E2F1-induced apoptosis by poly(ADP-ribosyl)ation. Cell Death Differ 2014; 22:311-22. [PMID: 25257171 DOI: 10.1038/cdd.2014.146] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2014] [Revised: 08/16/2014] [Accepted: 08/18/2014] [Indexed: 11/09/2022] Open
Abstract
The transcription factor adenovirus E2 promoter-binding factor (E2F)-1 normally enhances cell-cycle progression, but it also induces apoptosis under certain conditions, including DNA damage and serum deprivation. Although DNA damage facilitates the phosphorylation and stabilization of E2F1 to trigger apoptosis, how serum starvation renders cells vulnerable to E2F1-induced apoptosis remains unclear. Because poly(ADP-ribose) polymerase 1 (PARP1), a nuclear enzyme essential for genomic stability and chromatin remodeling, interacts directly with E2F1, we investigated the effects of PARP1 on E2F1-mediated functions in the presence and absence of serum. PARP1 attenuation, which increased E2F1 transactivation, induced G2/M cell-cycle arrest under normal growth conditions, but enhanced E2F1-induced apoptosis in serum-starved cells. Interestingly, basal PARP1 activity was sufficient to modify E2F1 by poly(ADP-ribosyl)ation, which stabilized the interaction between E2F1 and the BIN1 tumor suppressor in the nucleus. Accordingly, BIN1 acted as an RB1-independent E2F1 corepressor. Because E2F1 directly activates the BIN1 gene promoter, BIN1 curbed E2F1 activity through a negative-feedback mechanism. Conversely, when the BIN1-E2F1 interaction was abolished by PARP1 suppression, E2F1 continuously increased BIN1 levels. This is functionally germane, as PARP1-depletion-associated G2/M arrest was reversed by the transfection of BIN1 siRNA. Moreover, PARP-inhibitor-associated anti-transformation activity was compromised by the coexpression of dominant-negative BIN1. Because serum starvation massively reduced the E2F1 poly(ADP-ribosyl)ation, we conclude that the release of BIN1 from hypo-poly(ADP-ribosyl)ated E2F1 is a mechanism by which serum starvation promotes E2F1-induced apoptosis.
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Affiliation(s)
- A Kumari
- 1] Department of Biochemistry and Molecular Biology, Medical College of Georgia, Georgia Regents University Cancer Center, Augusta, GA 30912, USA [2] Molecular Signaling Program, Stanley S. Scott Cancer Center, Louisiana State University Health Sciences Center, New Orleans, LA 70112, USA
| | - T Iwasaki
- 1] Department of Biochemistry and Molecular Biology, Medical College of Georgia, Georgia Regents University Cancer Center, Augusta, GA 30912, USA [2] Laboratory of Molecular Biology, Research Center for Environmental Genomics, Kobe University, Kobe 657, Japan
| | - S Pyndiah
- Molecular Signaling Program, Stanley S. Scott Cancer Center, Louisiana State University Health Sciences Center, New Orleans, LA 70112, USA
| | - E K Cassimere
- Molecular Signaling Program, Stanley S. Scott Cancer Center, Louisiana State University Health Sciences Center, New Orleans, LA 70112, USA
| | - C D Palani
- Department of Biochemistry and Molecular Biology, Medical College of Georgia, Georgia Regents University Cancer Center, Augusta, GA 30912, USA
| | - D Sakamuro
- 1] Department of Biochemistry and Molecular Biology, Medical College of Georgia, Georgia Regents University Cancer Center, Augusta, GA 30912, USA [2] Molecular Signaling Program, Stanley S. Scott Cancer Center, Louisiana State University Health Sciences Center, New Orleans, LA 70112, USA
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Sarkar S, Kumari A, Mallick I, Chatterjee S, Achari R. PO-0759: Anesthesia for external beam radiation therapy in children ñ an audit of clinical practice. Radiother Oncol 2014. [DOI: 10.1016/s0167-8140(15)30877-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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