scholarly journals Transfersome vs liposomes as drug delivery vehicle for the treatment of skin cancers

2019 ◽  
Vol 10 (3) ◽  
pp. 1795-1807
Author(s):  
Sivarajakumar Raahulan ◽  
Bharat Kumar Reddy Sanapalli ◽  
Sai Kiran SS. Pindiprolu ◽  
Veera Venkata Satyanarayana Reddy Karri
Keyword(s):  
Skin Cancer ◽  
Transdermal Delivery ◽  
Drug Carrier ◽  
Current Treatment ◽  
Delivery Vehicle ◽  
Preparation Methods ◽  
Regulatory Aspects ◽  
Skin Delivery ◽  
Skin Cancers ◽  
Target Effects

Skin cancer is one of the leading causes of cancer-related deaths worldwide. It is estimated that by 2030, there will be around 13.1million deaths can occur due to skin cancer. Current treatment of skin cancer includes surgery, radiation and chemotherapy. Chemo-resistance, off-target effects and poor bioavailability are the major challenges for currently available drugs for the treatment of skin cancer. Transfersomes is a novel, elastic vesicular drug carrier composed of phospholipids, surfactants and ethanol for enhanced transdermal delivery. This article we have reviewed about merits/demerits, liposomes vs transfersomes, preparation methods, characterization, mechanism of skin delivery, and application and regulatory aspects of transfersomes in treating various skin cancers.

Novel Nanolipoidal Systems for the Management of Skin Cancer

2020 ◽  
Vol 14 (2) ◽  
pp. 108-125
Author(s):  
Apoorva Singh ◽  
Nimisha
Keyword(s):  
Skin Cancer ◽  
Survival Rates ◽  
Cancer Therapeutics ◽  
The Body ◽  
Surgical Removal ◽  
The Novel ◽  
Skin Cancers ◽  
Recent Developments ◽  
Abnormal Cells ◽  
The Stability

: Skin cancer, among the various kinds of cancers, is a type that emerges from skin due to the growth of abnormal cells. These cells are capable of spreading and invading the other parts of the body. The occurrence of non-melanoma and melanoma, which are the major types of skin cancers, has increased over the past decades. Exposure to ultraviolet radiations (UV) is the main associative cause of skin cancer. UV exposure can inactivate tumor suppressor genes while activating various oncogenes. The conventional techniques like surgical removal, chemotherapy and radiation therapy lack the potential for targeting cancer cells and harm the normal cells. However, the novel therapeutics show promising improvements in the effectiveness of treatment, survival rates and better quality of life for patients. Different methodologies are involved in the skin cancer therapeutics for delivering the active ingredients to the target sites. Nano carriers are very efficient as they have the ability to improve the stability of drugs and further enhance their penetration into the tumor cells. The recent developments and research in nanotechnology have entitled several targeting and therapeutic agents to be incorporated into nanoparticles for an enhancive treatment of skin cancer. To protect the research works in the field of nanolipoidal systems various patents have been introduced. Some of the patents acknowledge responsive liposomes for specific targeting, nanocarriers for the delivery or co-delivery of chemotherapeutics, nucleic acids as well as photosensitizers. Further recent patents on the novel delivery systems have also been included here.

scholarly journals Systemic Photoprotection in Skin Cancer Prevention: Knowledge among Dermatologists

Biomolecules ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 332
Author(s):  
Luca Fania ◽  
Francesca Sampogna ◽  
Francesco Ricci ◽  
Mariafrancesca Hyeraci ◽  
Andrea Paradisi ◽  
...  
Keyword(s):  
Skin Cancer ◽  
Sampling Procedure ◽  
Skin Cancer Prevention ◽  
Snowball Sampling ◽  
Scientific Publications ◽  
Current State ◽  
Skin Cancers ◽  
Knowledge And Attitude ◽  
Nonmelanoma Skin Cancers

Background: Systemic photoprotection (i.e., administration of substances such as nicotinamide, carotenoids, and vitamin D) may be important to reduce photocarcinogenesis or to support long-term protection against UV irradiation. Clinical trials showed that oral nicotinamide is effective in reducing the onset of new nonmelanoma skin cancers (NMSCs), while other oral photoprotectors failed to achieve the reduction of new melanoma or NMSC formation in humans. The aim of this study was to summarize the current state of knowledge of systemic photoprotection and to evaluate the knowledge and attitude of dermatologists regarding these treatments. Methods: The survey was conducted on a sample of dermatologists recruited according to a snowball sampling procedure. The questionnaire consisted of a first part asking for characteristics of the participant and a second part with 12 specific questions on their knowledge about systemic photoprotection, particularly their knowledge of astaxanthin, β-carotene, nicotinamide, and vitamin D3. Results: One hundred eight dermatologists answered the survey. Most of them (85.2%) stated that oral photoprotectors have a role in the prevention of skin cancer, and responses mainly mentioned nicotinamide. More than half of them (54.6%) had prescribed all the considered oral photoprotectors, but the majority of them had prescribed nicotinamide, mainly for 2 to 3 months during summer, almost invariably (n = 106) associated with topical photoprotectors. Most dermatologists (>80%) were aware of scientific publications demonstrating an effect of systemic photoprotectors on NMSC. Conclusions: Most Italian dermatologists have positive views on oral photoprotection in skin cancer and are aware of the demonstrated potential of nicotinamide in the prevention of NMSCs.

scholarly journals Detailed head localization and incidence of skin cancers

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Marta Fijałkowska ◽  
Mateusz Koziej ◽  
Bogusław Antoszewski
Keyword(s):  
Skin Cancer ◽  
Cell Carcinoma ◽  
Vertical Dimension ◽  
Surgical Department ◽  
Surface Areas ◽  
Common Cancer ◽  
Skin Cancers ◽  
Sex Type ◽  
Cancer Subtype ◽  
The Face

AbstractSkin cancers are the most common neoplasms; frequently, they localize on the face. The aim of paper is to present the incidence of skin tumors in a single center from 2017 to 2019, describe trends in its frequency and find relations between neoplasms and sex, type of cancer, and its size. An analysis of histopathological files from the surgical department between 2017 and 2019 was calculated. These items were selected: sex, age, type of skin cancer, subtype of basal cell carcinoma (BCC), grading of squamous cell carcinoma (SCC), localization and dimensions of the tumor. The study sample consisted of 387 cases. BCC was the most common cancer and its nodular type was the most frequent. In older patients, the vertical dimension of excised carcinoma was significantly larger. Moreover, this connection was detected only in women compared to men. There were statistically significant differences between dimensions of the skin cancer and sex. In men group, skin cancers had statistically higher vertical dimensions and larger surface areas. On the face and head, BCC more often localizes in the nasal area, while SCC on the auricle. It has been demonstrated that the older the patient, the larger the vertical dimension of the tumor. As such, tumor size is larger in men than in women, as women usually see their physicians sooner than men: cosmetic concerns are more important to them.

scholarly journals Efficacy and Selectivity of FGF2-Saporin Cytosolically Delivered by PCI in Cells Overexpressing FGFR1

Cells ◽  
2021 ◽  
Vol 10 (6) ◽  
pp. 1476
Author(s):  
Aurora K. Vikan ◽  
Michal Kostas ◽  
Ellen Margrethe Haugsten ◽  
Pål K. Selbo ◽  
Jørgen Wesche
Keyword(s):  
Treatment Options ◽  
Current Treatment ◽  
Fibroblast Growth Factor Receptors ◽  
Ribosome Inactivating Protein ◽  
Cytosolic Delivery ◽  
Low Levels ◽  
U2os Cells ◽  
Targeting Effect ◽  
Target Effects ◽  
In Cells

Fibroblast growth factor receptors (FGFRs) have become an attractive target in cancer research and therapy due to their implication in several cancers. Limitations of current treatment options require a need for additional, more specific and potent strategies to overcome cancers driven by FGFRs. Photochemical internalization (PCI) is a light-controlled method for cytosolic delivery of drugs that are entrapped in endosomes and lysosomes. We here evaluated the efficacy and selectivity of PCI of FGF2-saporin (FGF-SAP) in cells overexpressing FGFR1. FGF-SAP is a conjugate of FGF2 and the highly cytotoxic ribosome-inactivating protein (RIP) saporin, which is used as payload to eliminate cancer cells. Evaluation of the targeting effect of PCI of FGF-SAP was done by comparing the cytotoxic response in osteosarcoma cells with very low levels of FGFR1 (U2OS) to cells overexpressing FGFR1 (U2OS-R1). We demonstrate that PCI greatly enhances cytotoxicity of the drug showing efficient cell killing at pM concentrations of the drug in U2OS-R1 cells. However, U2OS cells were also sensitive to the toxin after PCI. Binding experiments using confocal microscopy and Western blotting techniques indicate that FGF-SAP is taken up by cells through heparan sulfate proteoglycans (HSPGs) in U2OS cells. We further show that the cytotoxicity of FGF-SAP in U2OS cells was reduced when cells were co-treated with heparin to compete out binding to HSPG, demonstrating that the cytotoxic effect was due to internalization by HSPGs. We conclude that to prevent off-target effects of FGF-based toxins, it will be necessary to circumvent binding to HSPGs, for example by mutating the binding site of FGF2 to HSPGs.

In vivomicrodialysis for the evaluation of transfersomes as a novel transdermal delivery vehicle for cinnamic acid

2013 ◽  
Vol 40 (3) ◽  
pp. 301-307 ◽  
Author(s):  
Yong-Tai Zhang ◽  
Yue-Ming Xu ◽  
Su-Juan Zhang ◽  
Ji-Hui Zhao ◽  
Zhi Wang ◽  
...  
Keyword(s):  
Cinnamic Acid ◽  
Transdermal Delivery ◽  
Delivery Vehicle

scholarly journals Association of Environmental Arsenic Exposure, Genetic Polymorphisms of Susceptible Genes, and Skin Cancers in Taiwan

2015 ◽  
Vol 2015 ◽  
pp. 1-10 ◽  
Author(s):  
Ling-I Hsu ◽  
Meei-Maan Wu ◽  
Yuan-Hung Wang ◽  
Cheng-Yeh Lee ◽  
Tse-Yen Yang ◽  
...  
Keyword(s):  
Skin Cancer ◽  
Cancer Risk ◽  
Arsenic Exposure ◽  
Skin Carcinogenesis ◽  
Glutathione S Transferase ◽  
Xenobiotic Detoxification ◽  
Skin Cancer Risk ◽  
Metabolic Genes ◽  
Skin Cancers ◽  
And Gender

Deficiency in the capability of xenobiotic detoxification and arsenic methylation may be correlated with individual susceptibility to arsenic-related skin cancers. We hypothesized that glutathione S-transferase (GST M1, T1, and P1), reactive oxygen species (ROS) related metabolic genes (NQO1, EPHX1, and HO-1), and DNA repair genes (XRCC1, XPD, hOGG1, and ATM) together may play a role in arsenic-induced skin carcinogenesis. We conducted a case-control study consisting of 70 pathologically confirmed skin cancer patients and 210 age and gender matched participants with genotyping of 12 selected polymorphisms. The skin cancer risks were estimated by odds ratio (OR) and 95% confidence interval (CI) using logistic regression. EPHX1 Tyr113His, XPD C156A, and GSTT1 null genotypes were associated with skin cancer risk (OR = 2.99, 95% CI = 1.01–8.83; OR = 2.04, 95% CI = 0.99–4.27; OR = 1.74, 95% CI = 1.00–3.02, resp.). However, none of these polymorphisms showed significant association after considering arsenic exposure status. Individuals carrying three risk polymorphisms of EPHX1 Tyr113His, XPD C156A, and GSTs presented a 400% increased skin cancer risk when compared to those with less than or equal to one polymorphism. In conclusion, GSTs, EPHX1, and XPD are potential genetic factors for arsenic-induced skin cancers. The roles of these genes for arsenic-induced skin carcinogenesis need to be further evaluated.

Chitosan Nanocarriers Loading Anti-Tumor Drugs

2015 ◽  
Vol 32 ◽  
pp. 113-127 ◽  
Author(s):  
Ji Wei Wu ◽  
Xin Feng Song ◽  
Han Wen Sun ◽  
Yan Cong Zhang ◽  
Xiang Ling Gu ◽  
...  
Keyword(s):  
Self Assembly ◽  
Drug Carrier ◽  
The Body ◽  
Natural Polymer ◽  
Preparation Methods ◽  
Ionic Crosslinking ◽  
Covalent Crosslinking ◽  
Immune Ability ◽  
Tumor Drugs ◽  
Adhesion Effect

Chitosan is a kind of natural polymer commonly applied for nanomaterials, which is affluent in nature with favorable biodegradability and biocompatibility and free of toxicity or odor. In clinic it can be used as a drug carrier for the treatment of cancer, and also it is a kind of new pharmaceutical excipient. To prepare chitosan nanomaterial, various method are used, such as ionic crosslinking, covalent crosslinking, precipitation, free radical polymerization, reverse micelle, spray drying, and self-assembly. Furthermore, plenty of anti-tumor drugs, including adriamycin, epirubicin, taxol, 5-fluorouracil, norcantharidin, folic acid, and so on, are also attempted to load on these chitosan nanocarriers. In addition, the mechanism for those nanocarriers carrying anti-tumor drugs acting on tumor cell were explored, and the formulation mainly include electric charge adhesion effect, suppressing the proliferation of tumor cells, adjusting or enhancing immune ability of the body and inducing apoptosis. This paper compared the characteristics of different preparation methods on chitosan as a nanodrug carrier, summarized the types of packaged drugs, analyzed the mechanism of the chitosan as nanodrug carriers. It can provide valuable reference for researchers' further work.

scholarly journals Skin cancer awareness and sunscreen use among outpatients of a South African hospital: need for vigorous public education

2018 ◽  
Vol 60 (4) ◽  
pp. 53
Author(s):  
N. C. Dlova ◽  
R. Gathers ◽  
J. Tsoka-Gwegweni ◽  
R. J. Hift
Keyword(s):  
Skin Cancer ◽  
South African ◽  
Survival Rates ◽  
Cancer Awareness ◽  
Cross Sectional Survey ◽  
Cross Sectional ◽  
South Africans ◽  
Melanoma Incidence ◽  
Skin Cancers ◽  
Black Patients

Background: Melanoma incidence among white South Africans is increasing. Among black individuals, melanoma is associated with advanced stage at presentation and significant mortality.Objectives: A study was undertaken to assess the perception of skin cancer risk, knowledge of skin cancer, and understanding of the importance and use of sunscreens among South Africans.Methods: A cross-sectional survey was conducted in general outpatients over four months at a large central hospital in Durban, South Africa.Results: Only half the white respondents reported regular use of a sunscreen. Among black and Indian respondents, the number was substantially lower. Less than 20% of white respondents had ever checked their skin for suspicious moles. Most black patients were not aware that they are at risk of skin cancer, and only 10% were aware of the risk of developing skin cancers on acral sites and nails.Conclusions: There is a worrying lack of knowledge about skin cancer and sun protection behaviours among all South Africans. Given the increase in melanoma incidence and racial disparities in survival rates, it is imperative to target each population with effective, culturally sensitive educational programmes.

scholarly journals Skin Cancers and the Contribution of Rho GTPase Signaling Networks to Their Progression

Cancers ◽  
2021 ◽  
Vol 13 (17) ◽  
pp. 4362
Author(s):  
Alessandra Pecora ◽  
Justine Laprise ◽  
Manel Dahmene ◽  
Mélanie Laurin
Keyword(s):  
Skin Cancer ◽  
Cell Carcinoma ◽  
Cancer Biology ◽  
Rho Gtpase ◽  
Signaling Networks ◽  
Molecular Events ◽  
Skin Cancers ◽  
Cancer Initiation ◽  
Cytoskeletal Dynamics ◽  
Genetic Perturbations

Skin cancers are the most common cancers worldwide. Among them, melanoma, basal cell carcinoma of the skin and cutaneous squamous cell carcinoma are the three major subtypes. These cancers are characterized by different genetic perturbations even though they are similarly caused by a lifelong exposure to the sun. The main oncogenic drivers of skin cancer initiation have been known for a while, yet it remains unclear what are the molecular events that mediate their oncogenic functions and that contribute to their progression. Moreover, patients with aggressive skin cancers have been known to develop resistance to currently available treatment, which is urging us to identify new therapeutic opportunities based on a better understanding of skin cancer biology. More recently, the contribution of cytoskeletal dynamics and Rho GTPase signaling networks to the progression of skin cancers has been highlighted by several studies. In this review, we underline the various perturbations in the activity and regulation of Rho GTPase network components that contribute to skin cancer development, and we explore the emerging therapeutic opportunities that are surfacing from these studies.

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