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  1. Article: Possible Synergies of Nanomaterial-Assisted Tissue Regeneration in Plasma Medicine: Mechanisms and Safety Concerns.

    Shaw, Priyanka / Vanraes, Patrick / Kumar, Naresh / Bogaerts, Annemie

    Nanomaterials (Basel, Switzerland)

    2022  Volume 12, Issue 19

    Abstract: Cold atmospheric plasma and nanomedicine originally emerged as individual domains, but are increasingly applied in combination with each other. Most research is performed in the context of cancer treatment, with only little focus yet on the possible ... ...

    Abstract Cold atmospheric plasma and nanomedicine originally emerged as individual domains, but are increasingly applied in combination with each other. Most research is performed in the context of cancer treatment, with only little focus yet on the possible synergies. Many questions remain on the potential of this promising hybrid technology, particularly regarding regenerative medicine and tissue engineering. In this perspective article, we therefore start from the fundamental mechanisms in the individual technologies, in order to envision possible synergies for wound healing and tissue recovery, as well as research strategies to discover and optimize them. Among these strategies, we demonstrate how cold plasmas and nanomaterials can enhance each other's strengths and overcome each other's limitations. The parallels with cancer research, biotechnology and plasma surface modification further serve as inspiration for the envisioned synergies in tissue regeneration. The discovery and optimization of synergies may also be realized based on a profound understanding of the underlying redox- and field-related biological processes. Finally, we emphasize the toxicity concerns in plasma and nanomedicine, which may be partly remediated by their combination, but also partly amplified. A widespread use of standardized protocols and materials is therefore strongly recommended, to ensure both a fast and safe clinical implementation.
    Language English
    Publishing date 2022-09-28
    Publishing country Switzerland
    Document type Journal Article ; Review
    ZDB-ID 2662255-5
    ISSN 2079-4991
    ISSN 2079-4991
    DOI 10.3390/nano12193397
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Alleviation of radiation combined skin injury in rat model by topical application of ascorbate formulation.

    Sharma, Ajay Kumar / Kalonia, Aman / Kumar, Rishav / Kirti / Shaw, Priyanka / Yashvarddhan, M H / Vibhuti, Arpana / Shukla, Sandeep Kumar

    International journal of radiation biology

    2024  Volume 100, Issue 5, Page(s) 689–708

    Abstract: Purpose: This research endeavor was undertaken to elucidate the impact of an innovative ascorbate formulation on the regeneration process of full-thickness excision wounds in a rat model exposed to whole-body gamma irradiation, replicating conditions ... ...

    Abstract Purpose: This research endeavor was undertaken to elucidate the impact of an innovative ascorbate formulation on the regeneration process of full-thickness excision wounds in a rat model exposed to whole-body gamma irradiation, replicating conditions akin to combat or radiation emergency scenarios.
    Materials and methods: We established a comprehensive rat model by optimizing whole body γ-radiation doses (5-9 Gy) and full-thickness excision wound sizes (1-3 cm
    Results: The combination of a 5 Gy radiation dose and a 1 cm
    Conclusion: Topical application of the ascorbate formulation in RCI resulted in a significant improvement in delayed wound healing, leading to accelerated wound closure by mitigating the expression of inflammatory responses.
    MeSH term(s) Animals ; Ascorbic Acid/pharmacology ; Ascorbic Acid/administration & dosage ; Rats ; Wound Healing/drug effects ; Wound Healing/radiation effects ; Administration, Topical ; Skin/radiation effects ; Skin/drug effects ; Skin/injuries ; Skin/pathology ; Male ; Disease Models, Animal ; Radiation Injuries, Experimental/drug therapy ; Radiation Injuries, Experimental/pathology ; Rats, Sprague-Dawley ; Gamma Rays ; Whole-Body Irradiation
    Chemical Substances Ascorbic Acid (PQ6CK8PD0R)
    Language English
    Publishing date 2024-02-02
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 3065-x
    ISSN 1362-3095 ; 0020-7616 ; 0955-3002
    ISSN (online) 1362-3095
    ISSN 0020-7616 ; 0955-3002
    DOI 10.1080/09553002.2024.2310016
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article: Early cutaneous inflammatory response at different degree of burn and its significance for clinical diagnosis and management.

    Shaw, Priyanka / Sharma, Ajay Kumar / Kalonia, Aman / Shukla, Amit / Kumar, Rishav / Kirti / Shukla, Sandeep Kumar

    Journal of tissue viability

    2023  Volume 32, Issue 4, Page(s) 550–563

    Abstract: A complete characterization of the burn wound based on cutaneous architectural changes and inflammatory response is extremely important to provide evidence for progressive changes in the burn wound. Burn wounds are highly susceptible to conversion into ... ...

    Abstract A complete characterization of the burn wound based on cutaneous architectural changes and inflammatory response is extremely important to provide evidence for progressive changes in the burn wound. Burn wounds are highly susceptible to conversion into deeper wounds, which need special care and attention; thereby, the complete characterization of burn wound type and their subsequent inflammatory status in the cutaneous system at the earliest is of paramount importance. Inflammatory markers at different degrees will help clinicians devise better and more specific treatment strategies for each burn type. The present study is carried out to profile pro-inflammatory gene expression along with immune cell quantification, vascular perfusion, and histopathological assessment in the cutaneous system of murine models. The study revealed that burn injury caused an immediate increase in vascular perfusion in superficial and partial-thickness burns, whereas there was a decrease in vascular perfusion in full-thickness burns. An influx of lymphocytes at the edges of burn wounds in each type of burn injury was well-orchestrated with the event of vascular perfusion. Further, pro-inflammatory gene expression profiling revealed significant upregulation vis-à-vis upregulation of TNF-α and MCP-1 genes, with an increase in the number of neutrophils following 72 h of injury that evidently cemented the conversion of superficial burn into partial-thickness burn. The molecular findings were profoundly supported by the histopathological changes. Thus, our foundational studies show distinct characteristic cutaneous changes correlated with the expression of key pro-inflammatory genes in three different types of burn injuries. Characterization of these cutaneous inflammatory responses provides a promising future for medical interventions involved with different degrees of burn injury, and it will also help in the pre-clinical testing of therapies for burn injury.
    MeSH term(s) Humans ; Mice ; Animals ; Skin/pathology ; Tumor Necrosis Factor-alpha ; Neutrophils ; Burns/complications ; Burns/therapy ; Soft Tissue Injuries
    Chemical Substances Tumor Necrosis Factor-alpha
    Language English
    Publishing date 2023-07-01
    Publishing country England
    Document type Journal Article
    ZDB-ID 1282604-2
    ISSN 0965-206X
    ISSN 0965-206X
    DOI 10.1016/j.jtv.2023.06.011
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article: Modulating the Antioxidant Response for Better Oxidative Stress-Inducing Therapies: How to Take Advantage of Two Sides of the Same Medal?

    Shaw, Priyanka / Kumar, Naresh / Sahun, Maxime / Smits, Evelien / Bogaerts, Annemie / Privat-Maldonado, Angela

    Biomedicines

    2022  Volume 10, Issue 4

    Abstract: Oxidative stress-inducing therapies are characterized as a specific treatment that involves the production of reactive oxygen and nitrogen species (RONS) by external or internal sources. To protect cells against oxidative stress, cells have evolved a ... ...

    Abstract Oxidative stress-inducing therapies are characterized as a specific treatment that involves the production of reactive oxygen and nitrogen species (RONS) by external or internal sources. To protect cells against oxidative stress, cells have evolved a strong antioxidant defense system to either prevent RONS formation or scavenge them. The maintenance of the redox balance ensures signal transduction, development, cell proliferation, regulation of the mechanisms of cell death, among others. Oxidative stress can beneficially be used to treat several diseases such as neurodegenerative disorders, heart disease, cancer, and other diseases by regulating the antioxidant system. Understanding the mechanisms of various endogenous antioxidant systems can increase the therapeutic efficacy of oxidative stress-based therapies, leading to clinical success in medical treatment. This review deals with the recent novel findings of various cellular endogenous antioxidant responses behind oxidative stress, highlighting their implication in various human diseases, such as ulcers, skin pathologies, oncology, and viral infections such as SARS-CoV-2.
    Language English
    Publishing date 2022-03-31
    Publishing country Switzerland
    Document type Journal Article ; Review
    ZDB-ID 2720867-9
    ISSN 2227-9059
    ISSN 2227-9059
    DOI 10.3390/biomedicines10040823
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Modulating the Antioxidant Response for Better Oxidative Stress-Inducing Therapies

    Priyanka Shaw / Naresh Kumar / Maxime Sahun / Evelien Smits / Annemie Bogaerts / Angela Privat-Maldonado

    Biomedicines, Vol 10, Iss 823, p

    How to Take Advantage of Two Sides of the Same Medal?

    2022  Volume 823

    Abstract: Oxidative stress-inducing therapies are characterized as a specific treatment that involves the production of reactive oxygen and nitrogen species (RONS) by external or internal sources. To protect cells against oxidative stress, cells have evolved a ... ...

    Abstract Oxidative stress-inducing therapies are characterized as a specific treatment that involves the production of reactive oxygen and nitrogen species (RONS) by external or internal sources. To protect cells against oxidative stress, cells have evolved a strong antioxidant defense system to either prevent RONS formation or scavenge them. The maintenance of the redox balance ensures signal transduction, development, cell proliferation, regulation of the mechanisms of cell death, among others. Oxidative stress can beneficially be used to treat several diseases such as neurodegenerative disorders, heart disease, cancer, and other diseases by regulating the antioxidant system. Understanding the mechanisms of various endogenous antioxidant systems can increase the therapeutic efficacy of oxidative stress-based therapies, leading to clinical success in medical treatment. This review deals with the recent novel findings of various cellular endogenous antioxidant responses behind oxidative stress, highlighting their implication in various human diseases, such as ulcers, skin pathologies, oncology, and viral infections such as SARS-CoV-2.
    Keywords free radicals ; reactive oxygen and nitrogen species ; oxidative stress ; antioxidants ; human diseases ; redox signaling ; Biology (General) ; QH301-705.5
    Subject code 610
    Language English
    Publishing date 2022-03-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  6. Article ; Online: Combined radiation burn injuries: A note.

    Sharma, Ajay Kumar / Prasad, Ayushi / Kalonia, Aman / Shaw, Priyanka / Kumar, Rishav / Shukla, Sandeep Kumar

    Journal of radiological protection : official journal of the Society for Radiological Protection

    2022  Volume 42, Issue 4

    Abstract: Combined radiation injury occurs when radiation is accompanied by any other form of trauma. The past experiences of Hiroshima, Nagasaki, and Chernobyl have revealed that a large number of victims of such nuclear accidents or attacks suffer from combined ... ...

    Abstract Combined radiation injury occurs when radiation is accompanied by any other form of trauma. The past experiences of Hiroshima, Nagasaki, and Chernobyl have revealed that a large number of victims of such nuclear accidents or attacks suffer from combined radiation injuries. The possibility of a nuclear attack seems very far-fetched, but the destruction that would occur in such an event would be massive, with a huge lossof lives. Therefore, preparedness for the same should be done beforehand. The severity of combined radiation depends upon various factors, such as radiation dose, type, tissues affected, and traumas. The article focuses on combined radiation burn injury (CRBI) which may arise due to the combination of ionising radiation with thermal burns. CRBI can have varied effects on different organs like the hematopoietic, digestive, lymphatic, cardiovascular, and respiratory systems. Some of the most profound lethal effects are hematopoietic dysfunction, gastrointestinal leakage, bacterial translocation to other organ sites, pulmonary fibrosis, and pneumonitis. In this article, we have attempted to accumulate the knowledge of ongoing research on the functioning of different organ systems, which are affected due to CRBI and possible countermeasures to minimize the effects, thus improving survival.
    MeSH term(s) Humans ; Burns/complications ; Radiation Injuries/complications ; Radioactive Hazard Release
    Language English
    Publishing date 2022-11-17
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 639411-5
    ISSN 1361-6498 ; 0952-4746
    ISSN (online) 1361-6498
    ISSN 0952-4746
    DOI 10.1088/1361-6498/ac9e61
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Ascorbate formulation improves healing efficacy in excisional wound mice model through interplay between pro and anti-inflammatory cytokines and angiogenic markers.

    Kalonia, Aman / Kumar Sharma, Ajay / Shaw, Priyanka / Kumar, Abhishek / Bhatt, Anant Narayan / Shukla, Amit / Shukla, Sandeep Kumar

    Cytokine

    2023  Volume 164, Page(s) 156158

    Abstract: Background and objective: Biomedical research in regenerative medicine prompts researchers to formulate cost-effective therapeutics for wound healing. The present study was conducted to characterize the ascorbate based formulation vis-a-vis ... ...

    Abstract Background and objective: Biomedical research in regenerative medicine prompts researchers to formulate cost-effective therapeutics for wound healing. The present study was conducted to characterize the ascorbate based formulation vis-a-vis investigating the molecular dynamics of the formulation.
    Materials and methods: To characterize the formulation, particle size, zeta potential, thermal stability, compatibility, anti-oxidant, and permeation prospective were measured using standard protocols. The in-vitro healing potential and safety formulae were evaluated using the L929 cell line. For molecular unravelling of the pharmacodynamics of formulation, an excision wound model was used, and 54 mice were randomly and equally divided into three groups, i.e., untreated, betadine-treated, and formulation-treated, to ascertain the interplay between cytokines and chemokines and their culminative role in the release of growth factors.
    Results: The ascorbate formulae were found to be amorphous, biocompatible, safe, and long-lasting, with particle sizes and zeta potentials of 389.7 ± 0.69 nm and -38.1 ± 0.65 mV, respectively, and anti-oxidative potential. An in-vitro study revealed that the formulation has a significant (p<0.05) migration potential and is non-toxic. Expression profiling of TGF-β, FGF-2, VEGF, and collagen III & I showed significant (p<0.05) up-regulation, whereas significant (p<0.05) down-regulation of pro-inflammatory genes like IL-1α, IL-1β, TNF-α, IL-6, and temporal change in CCR-5 was observed in formulae-treated animals as compared to other groups.
    Conclusion: By up-regulating angiogenic and collagen-promoting growth factor gene expression while down-regulating pro-inflammatory gene expression, ascorbate formulation promotes wound healing via extracellular matrix and granulation tissue deposition with significant improvement in tensile strength.
    MeSH term(s) Mice ; Animals ; Cytokines ; Prospective Studies ; Wound Healing/physiology ; Collagen ; Disease Models, Animal ; Collagen Type I/genetics ; Anti-Inflammatory Agents
    Chemical Substances Cytokines ; Collagen (9007-34-5) ; Collagen Type I ; Anti-Inflammatory Agents
    Language English
    Publishing date 2023-02-22
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 1018055-2
    ISSN 1096-0023 ; 1043-4666
    ISSN (online) 1096-0023
    ISSN 1043-4666
    DOI 10.1016/j.cyto.2023.156158
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  8. Article: Cold Atmospheric Plasma Increases Temozolomide Sensitivity of Three-Dimensional Glioblastoma Spheroids via Oxidative Stress-Mediated DNA Damage.

    Shaw, Priyanka / Kumar, Naresh / Privat-Maldonado, Angela / Smits, Evelien / Bogaerts, Annemie

    Cancers

    2021  Volume 13, Issue 8

    Abstract: Glioblastoma multiforme (GBM) is the most frequent and aggressive primary malignant brain tumor in adults. Current standard radiotherapy and adjuvant chemotherapy with the alkylating agent temozolomide (TMZ) yield poor clinical outcome. This is due to ... ...

    Abstract Glioblastoma multiforme (GBM) is the most frequent and aggressive primary malignant brain tumor in adults. Current standard radiotherapy and adjuvant chemotherapy with the alkylating agent temozolomide (TMZ) yield poor clinical outcome. This is due to the stem-like properties of tumor cells and genetic abnormalities in GBM, which contribute to resistance to TMZ and progression. In this study, we used cold atmospheric plasma (CAP) to enhance the sensitivity to TMZ through inhibition of antioxidant signaling (linked to TMZ resistance). We demonstrate that CAP indeed enhances the cytotoxicity of TMZ by targeting the antioxidant specific glutathione (GSH)/glutathione peroxidase 4 (GPX4) signaling. We optimized the threshold concentration of TMZ on five different GBM cell lines (U251, LN18, LN229, U87-MG and T98G). We combined TMZ with CAP and tested it on both TMZ-sensitive (U251, LN18 and LN229) and TMZ-resistant (U87-MG and T98G) cell lines using two-dimensional cell cultures. Subsequently, we used a three-dimensional spheroid model for the U251 (TMZ-sensitive) and U87-MG and T98G (TMZ-resistant) cells. The sensitivity of TMZ was enhanced, i.e., higher cytotoxicity and spheroid shrinkage was obtained when TMZ and CAP were administered together. We attribute the anticancer properties to the release of intracellular reactive oxygen species, through inhibiting the GSH/GPX4 antioxidant machinery, which can lead to DNA damage. Overall, our findings suggest that the combination of CAP with TMZ is a promising combination therapy to enhance the efficacy of TMZ towards the treatment of GBM spheroids.
    Language English
    Publishing date 2021-04-08
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2527080-1
    ISSN 2072-6694
    ISSN 2072-6694
    DOI 10.3390/cancers13081780
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  9. Article ; Online: Bioactive Nonthermal Biocompatible Plasma Enhances Migration on Human Gingival Fibroblasts.

    Han, Ihn / Song, In-Seok / Choi, Seung Ah / Lee, Taebok / Yusupov, Maksudbek / Shaw, Priyanka / Bogaerts, Annemie / Choi, Eun Ha / Ryu, Jae Jun

    Advanced healthcare materials

    2022  Volume 12, Issue 4, Page(s) e2200527

    Abstract: This study hypothesizes that the application of low-dose nonthermal biocompatible dielectric barrier discharge plasma (DBD-NBP) to human gingival fibroblasts (HGFs) will inhibit colony formation but not cell death and induce matrix metalloproteinase (MMP) ...

    Abstract This study hypothesizes that the application of low-dose nonthermal biocompatible dielectric barrier discharge plasma (DBD-NBP) to human gingival fibroblasts (HGFs) will inhibit colony formation but not cell death and induce matrix metalloproteinase (MMP) expression, extracellular matrix (ECM) degradation, and subsequent cell migration, which can result in enhanced wound healing. HGFs treated with plasma for 3 min migrate to each other across the gap faster than those in the control and 5-min treatment groups on days 1 and 3. The plasma-treated HGFs show significantly high expression levels of the cell cycle arrest-related p21 gene and enhanced MMP activity. Focal adhesion kinase (FAK) mediated attenuation of wound healing or actin cytoskeleton rearrangement, and plasma-mediated reversal of this attenuation support the migratory effect of DBD-NBP. Further, this work performs computer simulations to investigate the effect of oxidation on the stability and conformation of the catalytic kinase domain (KD) of FAK. It is found that the oxidation of highly reactive amino acids (AAs) Cys427, Met442, Cys559, Met571, Met617, and Met643 changes the conformation and increases the structural flexibility of the FAK protein and thus modulates its function and activity. Low-dose DBD-NBP-induces host cell cycle arrest, ECM breakdown, and subsequent migration, thus contributing to the enhanced wound healing process.
    MeSH term(s) Humans ; Focal Adhesion Protein-Tyrosine Kinases/metabolism ; Cell Movement ; Gingiva ; Wound Healing ; Fibroblasts ; Cells, Cultured
    Chemical Substances Focal Adhesion Protein-Tyrosine Kinases (EC 2.7.10.2)
    Language English
    Publishing date 2022-12-12
    Publishing country Germany
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2649576-4
    ISSN 2192-2659 ; 2192-2640
    ISSN (online) 2192-2659
    ISSN 2192-2640
    DOI 10.1002/adhm.202200527
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article: Vascular perfusion: A predictive tool for thermal burn injury.

    Shaw, Priyanka / Sharma, Ajay Kumar / Kalonia, Aman / Shukla, Sandeep Kumar

    Journal of tissue viability

    2019  Volume 29, Issue 1, Page(s) 48–50

    Abstract: Damage to the blood vascular system and their altered permeability is a prominent pathological event in case of dermal injury, particularly in burn trauma situations. Prediction of vascular perfusion at the site of damage could be an attractive tool in ... ...

    Abstract Damage to the blood vascular system and their altered permeability is a prominent pathological event in case of dermal injury, particularly in burn trauma situations. Prediction of vascular perfusion at the site of damage could be an attractive tool in the estimation of thermal burn injury. A very few reports are available with reference to this tool in defining the thermal injury status. We have used the vascular perfusion estimation method as a tool in assessing the severity of thermal damage to the animal skin. To validate this tool, the mice were subjected to the thermal burn at 90 °C for 10, 20 & 30 s and excised burned skin samples were analyzed for vascular perfusion 24hr post-burn treatment. The vascular perfusion was significantly altered in a time-dependent fashion. This method also provided information regarding blood vessel damage at varied time points. The results of this study clearly indicate the severity of skin damage by the thermal burn. The finding of the present study could have greater implications in predicting the degree of burn. This method is very simple and cost-effective compared to other available modalities used for the estimation of thermal burn injury. The method certainly has the benefit of the estimation of burn injury in the animal models.
    MeSH term(s) Animals ; Blood Flow Velocity ; Burns/diagnosis ; Burns/physiopathology ; Disease Models, Animal ; Female ; Humans ; Mice ; Mice, Inbred Strains ; Predictive Value of Tests ; Severity of Illness Index
    Language English
    Publishing date 2019-12-10
    Publishing country England
    Document type Evaluation Study ; Journal Article
    ZDB-ID 1282604-2
    ISSN 0965-206X
    ISSN 0965-206X
    DOI 10.1016/j.jtv.2019.12.002
    Database MEDical Literature Analysis and Retrieval System OnLINE

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