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1.
Biochim Biophys Acta Mol Cell Biol Lipids ; 1869(6): 159505, 2024 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-38729236

RESUMO

Tylophora indica (Burm f.) Merrill, belong to family Asclepiadaceae, is considered to be a natural remedy with high medicinal benefits. The objective of this work is to assess the metabolomic profile of T. indica leaves enriched in alkaloids, as well as to evaluate the in vitro cytotoxicity of these leaves using the MTT assay on human breast MCF-7 and liver HepG2 cancer cell lines. Dried leaves of T. indica were extracted by sonication, using methanol containing 2 % (v/v) of acetic acid and obtained fraction was characterized by HPTLC and UPLC-MS. The UPLC-MS study yielded a preliminary identification of 32 metabolites, with tylophorine, tylophorine B, tylophorinine, and tylophorinidine being the predominant metabolites. The cytotoxicity of the extract of T. indica was evaluated on HepG2 and MCF-7 cell lines, yielding inhibitory concentration (IC50) values of 75.71 µg/mL and 69.60 µg/mL, respectively. Data suggested that the phytochemical screening clearly showed presence of numerous secondary metabolites with moderate cytotoxic efficacy. In conclusion, the future prospects of T. indica appear promising for the advancement of phytopharmaceutical-based anticancer medications, as well as for the design of contemporary pharmaceuticals in the field of cancer chemotherapy.


Assuntos
Alcaloides , Metabolômica , Extratos Vegetais , Folhas de Planta , Tylophora , Humanos , Folhas de Planta/metabolismo , Folhas de Planta/química , Alcaloides/metabolismo , Alcaloides/farmacologia , Alcaloides/química , Células Hep G2 , Metabolômica/métodos , Células MCF-7 , Extratos Vegetais/química , Extratos Vegetais/farmacologia , Extratos Vegetais/metabolismo , Tylophora/metabolismo , Tylophora/química , Antineoplásicos Fitogênicos/farmacologia , Antineoplásicos Fitogênicos/química , Antineoplásicos Fitogênicos/metabolismo
2.
Nat Prod Res ; : 1-15, 2023 Nov 03.
Artigo em Inglês | MEDLINE | ID: mdl-37921076

RESUMO

AIM: To summarise a detailed up-to-date review of the traditional uses, phytoconstituents, and pharmacological activities of various parts of Kigelia africana. MATERIALS AND METHODS: Google Scholar, PubMed, PubChem, Elsevier, King Draw, indianbiodiversity.org. RESULT: The phytochemical analysis of Kigelia africana subsp. africana has revealed the presence of approximately 145 compounds extracted from different parts of the plant. These bioactive extracts of the plant possess anti-inflammatory, antioxidant, antimicrobial, antidiabetic, antineoplastic, and anti-urolithic activities. Due to its anti-inflammatory, antioxidant, and immune-booster properties, Kigelia can prove to be an essential source of drugs for treating various disorders. CONCLUSION: Knowledge of the phytoconstituents, non-medicinal and medicinal traditional uses, pharmacological activities, and products obtained from Kigelia is described in this review with the hope that the updated findings will promote research on its biological pathways.


Traditional medicinal importance of Kigelia africana subsp. africanaPhytoconstituents present in extracts from different parts of the plantPharmacological activities of phytochemicals extracted from KigeliaAnti-inflammatory and antioxidant role in preventing oxidative stressPotential as ethnopharmacological therapeutic in treating respiratory ailmentsToxicity evaluation of Kigelia africana subsp. africana.

3.
Syst Biol Reprod Med ; 69(6): 399-409, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-37668557

RESUMO

Cervical cancer (Cacx) is the second and endometrial cancer (Ec) is the third most common gynecological cancer worldwide. The present study aims to understand the complex and unexplored conditions occurring in cervix and endometrium of the female genital tract caused due to the infection of the human papilloma viruses (HPVs) and Chlamydia trachomatis (CT). A total of 300 tissue biopsy samples of cervix and endometrium were included in the present study and tested for the presence of HPV and CT deoxyribonucleic acid (DNA) by using polymerase chain reaction (PCR) technique. The odds ratios and 95% confidence interval were considered for the calculation of the association of HPV and CT infection with the risk of cervical or Ec. Among endometrial patients, samples were 5% positive for HPV and 5% positive for CT infection. Among endometrial control group, no sample was found positive for either HPV or CT infection. Among cervical patients, 72% samples were positive for only HPV infection and 1% samples were positive for only CT infection. Among control group, 7% of samples were positive for only HPV infection and 3% were positive for only CT infection. The co-infection of CT with HPV in 9% of Cacx cases and in 2% of cervical control samples was also observed. This is the first study in Indian women to detect the prevalence of HPV and CT infections in endometrium cases and control. An updated estimate regarding the HPV and CT prevalence in cervix cases and control samples was also provided.


Assuntos
Infecções por Papillomavirus , Neoplasias do Colo do Útero , Feminino , Humanos , Papillomavirus Humano , Neoplasias do Colo do Útero/epidemiologia , Infecções por Papillomavirus/complicações , Infecções por Papillomavirus/epidemiologia , Chlamydia trachomatis , Prevalência , Endométrio
4.
PLoS One ; 18(7): e0288482, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37437063

RESUMO

BACKGROUND: Breast cancer is a multifactorial disease which involves number of molecular factors that are critically involved in proliferation of breast cancer cells. MEN1 gene that is traditionally known for its germline mutations in neuroendocrine tumors is associated with high risk of developing breast cancer in females with MEN1 syndrome. However, the paradoxical role of MEN1 is reported in sporadic breast cancer cases. The previous studies indicate the functional significance of MEN1 in regulating breast cells proliferation but its relevance in development and progression of breast cancer is still not known. Our study targets to find the role of MEN1 gene aberration and its clinical significance in breast cancer. METHODS: Breast tumor and adjacent normal tissue of 142 sporadic breast cancer patients were collected at the time of surgery. The expression analysis of MEN1 mRNA and protein was done through RT-PCR, immunohistochemistry and western blotting. Further to find the genetic and epigenetic alterations, automated sequencing and MS-PCR was performed respectively. Correlation between our findings and clinical parameters was determined using appropriate statistical tests. RESULTS: MEN1 expression was found to be significantly increased in the breast tumor tissue with its predominant nuclear localization. The elevated expression of MEN1 mRNA (63.38% cases) and protein (60.56% cases) exhibited a significant association with ER status of the patients. Most of the cases had unmethylated (53.52%) MEN1 promoter region, which can be a key factor responsible for dysregulated expression of MEN1 in breast cancer cases. Our findings also revealed the significant association of MEN1 mRNA overexpression with Age and lymph node status of the patients. CONCLUSION: Our results indicate upregulated expression of MEN1 in sporadic breast cancer patients and it could be critically associated with development and advancement of the disease.


Assuntos
Neoplasias da Mama , Proteínas Proto-Oncogênicas , Feminino , Humanos , Neoplasias da Mama/genética , Relevância Clínica , Expressão Gênica , RNA Mensageiro/genética , Proteínas Proto-Oncogênicas/genética
5.
Am J Reprod Immunol ; 90(2): e13745, 2023 08.
Artigo em Inglês | MEDLINE | ID: mdl-37491933

RESUMO

PROBLEM: Recurrent pregnancy loss (RPL) is the spontaneous loss of two or more consecutive pregnancies prior to 20 weeks of gestation, occurring in 1% of the reproductive-age population. It is a major cause of infertility in India with a staggering 7.46% prevalence rate. METHOD OF STUDY: Blood and product of conception (POCs) from RPL cases (n = 65) were enrolled for this study, along with cases of medically terminated pregnancy (MTP, n = 80) and term delivery cases (n = 90) as control. ELISA for progesterone and progesterone induced blocking factor (PIBF) levels was carried out, followed by mRNA expression analysis of progesterone receptor isoform B (PR-B) and its downstream immunomodulatory effectors, namely, PIBF, IL-10 and IL-12. Screening of PROGINS haplotype of PR gene and PIBF polymorphism were also conducted to correlate with their respective gene expression profiles. RESULTS: Serum progesterone level was found to be comparable in the RPL and MTP cases. Although the mRNA expression of PR-B was found to be downregulated in the RPL cases, no significant PROGINS haplotype was observed. Presence of a single nucleotide polymorphism (SNP) in the PIBF gene (rs1372000) was more in healthy controls compared to RPL cases. Serum PIBF levels were found to be lower in the RPL cases with a resultant increase in IL-12 and a decrease in IL-10 mRNA expression in these cases. CONCLUSIONS: This study indicates that progesterone, acting through PIBF, modulates the immunological state of pregnancy to be Th1-biased in RPL, indicative of a pro-inflammatory, labour-like state not desired for a healthy pregnancy.


Assuntos
Aborto Habitual , Progesterona , Gravidez , Feminino , Humanos , Progesterona/farmacologia , Citocinas , Interleucina-10/genética , Aborto Habitual/genética , Interleucina-12 , RNA Mensageiro/genética , RNA Mensageiro/metabolismo , Fatores Supressores Imunológicos/genética , Fatores Supressores Imunológicos/metabolismo
6.
Indian J Med Res ; 157(4): 330-344, 2023 04.
Artigo em Inglês | MEDLINE | ID: mdl-37282396

RESUMO

Background & objectives: Gestational or preexisting diabetes is one of the risk factors of pre-eclampsia. Both are responsible for higher maternal and fetal complications. The objective was to study clinical risk factors of pre-eclampsia and biochemical markers in early pregnancy of women with diabetes mellitus (DM)/gestational diabetes mellitus (GDM) for the development of pre-eclampsia. Methods: The study group comprised pregnant women diagnosed with GDM before the 20 wk of gestation and DM before pregnancy and the control group had age-, parity- and period of gestation-matched healthy women. Sex hormone-binding globulin (SHBG), insulin-like growth factor-I (IGF-I) and 25-hydroxy vitamin D [25(OH)D] levels and the polymorphism of these genes was evaluated at recruitment. Results: Out of 2050 pregnant women, 316 (15.41%) women (296 had GDM and 20 DM before pregnancy) were included in the study group. Of these, 96 women (30.38%) in the study group and 44 (13.92%) controls developed pre-eclampsia. Multivariate logistic regression analysis indicated those who belonged to the upper middle and upper class of socio-economic status (SES) were likely to be at 4.50 and 6.10 times higher risk of developing pre-eclampsia. The risk of getting pre-eclampsia among those who had DM before pregnancy and pre-eclampsia in their previous pregnancy was about 2.34 and 4.56 times higher compared to those who had no such events, respectively. The serum biomarkers [SHBG, IGF-I and 25(OH)D] were not found to be useful in predicting pre-eclampsia in women with GDM. To predict risk of development of pre-eclampsia, the fitted risk model by backward elimination procedure was used to calculate a risk score for each patient. Receiver operating characteristic (ROC) curve for pre-eclampsia showed that area under the curve was 0.68 (95% confidence interval: 0.63-0.73); P<0.001. Interpretation & conclusions: The findings of this study suggested that pregnant women with diabetes were at a higher risk for pre-eclampsia. SES, history of pre-eclampsia in previous pregnancy and pre-GDM were found to be the risk factors.


Assuntos
Diabetes Gestacional , Pré-Eclâmpsia , Gravidez , Feminino , Humanos , Masculino , Pré-Eclâmpsia/epidemiologia , Gestantes , Fator de Crescimento Insulin-Like I , Paridade , Biomarcadores
7.
Artigo em Inglês | MEDLINE | ID: mdl-37303181

RESUMO

BACKGROUND: Herbal drugs when used in combination with chemotherapeutic drugs can reduce the side effects and increase the efficacy by acting on multiple targets. Andrographolide (AG), a diterpene lactone isolated from Andrographis paniculata Nees, is a bioactive compound with anticancer potential, and 5-fluorouracil (FU), a pyrimidine analogue, is used in the treatment of cancer. Both drugs are used to formulate combination nanoformulation to increase absorption, thereby increasing their oral bioavailability. OBJECTIVE: The study aimed to develop and validate stability indicating simultaneous HPTLC method for quantification of FU and AG in combination nanoformulation along with in silico docking and network pharmacology analysis to understand the interaction between the drugs and cancer targets. METHODS: Chromatographic separation was performed using mobile phase chloroform: methanol: formic acid (9: 0.5: 0.5, v/v/v) on HPTLC silica plates 60 F254 as a stationary phase using UV-Vis detector and HPTLC scanner at 254 nm. Further, in silico docking analysis was performed to predict the binding affinity of AG and FU with different proteins and network pharmacology to find out the exact biomolecular relationship of AG and FU in alleviating cancer. RESULTS: The data from the calibration curve showed a good linear regression relationship with r² = 0.9981 (FU) and r² = 0.9977 (AG) in the concentration range of 0.1-2.0 µg/mL. The developed method was validated according to the ICH guidelines. Stability studies showed changes in peak patterns and areas. Bioinformatic and network pharmacology analyses of AG and FU with target proteins and genes associated with cancer play a multimechanistic role in alleviating cancer. CONCLUSION: The developed method has been concluded to be robust, simple, precise, reproducible, accurate, and stability indicating for simultaneous quantification of AG and FU, and the molecular interaction studies have further indicated that the combination nanoformulation of AG and FU could be effective against cancer.

8.
Oncotarget ; 14: 528-541, 2023 05 26.
Artigo em Inglês | MEDLINE | ID: mdl-37235839

RESUMO

INTRODUCTION: The BORIS, 11 zinc-finger transcription factors, is a member of the cancer-testis antigen (CTA) family. It is mapped to chromosome number 20q13.2 and this region is genetically linked to the early onset of breast cancer. The current study analyzed the correlation between BORIS mutations and the expression of the protein in breast cancer cases. MATERIALS AND METHODS: A population-based study including a total of 155 breast cancer tissue samples and an equal number of normal adjacent tissues from Indian female breast cancer patients was carried out. Mutations of the BORIS gene were detected by polymerase chain reaction-single standard confirmation polymorphisms (PCR-SSCP) and automated DNA sequencing and by immunohistochemistry for BORIS protein expression were performed. The observed findings were correlated with several clinicopathological parameters to find out the clinical relevance of associations. RESULTS: Of all the cases 16.12% (25/155) showed mutations in the BORIS gene. The observed mutations present on codon 329 are missense, leading to Val> Ile (G>A) change on exon 5 of the BORIS gene. A significant association was observed between mutations of the BORIS gene and some clinicopathological features like nodal status (p = 0.013), estrogen receptor (ER) expression (p = 0.008), progesterone receptor (PR) expression (p = 0.039), clinical stage (p = 0.010) and menopausal status (p = 0.023). The protein expression analysis showed 20.64% (32/155) samples showing low or no expression (+), 34.19% (53/155) with moderate expression (++), and 45.17% (70/155) showing high expression (+++) of BORIS protein. A significant association was observed between the expression of BORIS protein and clinicopathological features like clinical stage (p = 0.013), nodal status (p = 0.049), ER expression (p = 0.039), and PR expression (p = 0.027). When mutation and protein expression were correlated in combination with clinicopathological parameters a significant association was observed in the category of high (+++) level of BORIS protein expression (p = 0.017). CONCLUSION: The BORIS mutations and high protein expression occur frequently in carcinoma of the breast suggesting their association with the onset and progression of breast carcinoma. Further, the BORIS has the potential to be used as a biomarker.


Assuntos
Neoplasias da Mama , Masculino , Humanos , Feminino , Neoplasias da Mama/genética , Neoplasias da Mama/metabolismo , Linhagem Celular Tumoral , Mama/metabolismo , Fatores de Transcrição/genética , Fatores de Transcrição/metabolismo , Mutação , Regulação Neoplásica da Expressão Gênica
10.
Syst Biol Reprod Med ; 69(2): 112-128, 2023 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-36633945

RESUMO

In women, the uterine cervix and corpus uteri are two main suspects, playing a major role in cancer-associated-mortality. Immunologically, Toll-like receptors (TLRs) associated with the innate immune system, can recognize pathogens and induce immune responses against pathogens. Cellularly, TLR9 expression occurs in immune system cells including macrophages, natural killer cells, dendritic cells, and other antigen-presenting cells. TLR9 recognizes and interacts with viral and bacterial DNA comprising cytosine-phosphate-guanine (CpG) dideoxynucleotide motif. The current study is designed to identify the most deleterious nonsynonymous single nucleotide polymorphisms (nsSNPs) in the TLR9 gene and to delineate their deleterious effect on the structural and functional features of proteins at the molecular level. Based on the implementation of various computational tools and algorithms eight most deleterious nsSNPs (P139H, R257C, C265Y, L283P, G514D, L544Q, H566Y, and W670R) have been identified in the human TLR9 gene as potentially damaging SNPs. Further, our study suggests highly conserved patterns at deleterious nsSNPs sites could influence protein stability and its functional features. Additionally, this study identifies two nsSNPs (G514D and W670R) associated with the severity of Uterine corpus endometrial carcinoma. In support of our computational findings, the validation of key results using polymerase chain reaction and other experimental methods is warranted in the Indian population. In general, this study might be able to delineate the guideline for identifying the most damaging SNPs and enhances the understating of the risk factors for cancer and disease susceptibilities.


Assuntos
Algoritmos , Receptor Toll-Like 9 , Feminino , Humanos , Polimorfismo de Nucleotídeo Único , Estabilidade Proteica , Receptor Toll-Like 9/genética , Simulação por Computador
11.
Mol Cell Biochem ; 478(10): 2379-2394, 2023 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-36720839

RESUMO

The function of ABC transporters in the body is manifold; such as maintenance of homeostasis, effect on multi-drug resistance and their role in tumor initiation & progression. Evidence pointing towards the direct or indirect role of ABC transporter genes in particular; ABCB1 and ABCG2 in cancer genesis is increasing. However, their role in gallbladder cancer is unexplored. Therefore, we investigated the methylation status and expression pattern of ABCB1 and ABCG2in gallbladder carcinogenesis. The methylation and expression study of ABCB1/MDR1 and ABCG2/BCRP was performed in tumour and normal fresh tissue samples collected from 61 histopathologically diagnosed gallbladder cancer patients. The methylation status was analysed by Methylation-Specific PCR and expression was determined by Real-Time PCR and Immunohistochemistry. Hypomethylation of ABCB1 and ABCG2 was found in 44 (72.13%) and 48 (78.6%) cases, respectively. ABCB1 hypomethylation pattern showed association with female patients (p = 0.040) and GradeII tumors (p = 0.036) while, ABCG2 hypomethylation was more frequent in early tumors (T1-T2). The mRNA expression ofABCB1 and ABCG2 was up-regulated in 33 (54.10%) and 41 (67.21%) patients with fold change of 4.7 and 5.5, respectively. The mRNA expression of both genes showed association with Grade II tumours and the increased fold change of ABCG2 was higher in (T1-T2) depth of invasion (p = 0.02) and Stage I-II disease (p = 0.08). The protein expression on IHC was strongly positive for ABCB1/MDR1and ABCG2/BCRP in 32 (52.46%) and 45 (73.77%) patients, respectively. The protein expression in ABCG2 showed association with patients age > 50 years (p = 0.04) and GradeII differentiation (p = 0.07). Interestingly, the hypomethylation of both the genes showed significant correlation with increased expression. ABCB1/MDR1 and ABCG2/BCRP hypomethylation and overexpression could have a potential role in gallbladder cancer tumorigenesis especially in early stages. The epigenetic change might be a plausible factor for altered gene expression of ABCB1 and ABCG2 in gallbladder cancer.


Assuntos
Neoplasias da Vesícula Biliar , Humanos , Feminino , Pessoa de Meia-Idade , Neoplasias da Vesícula Biliar/genética , Membro 2 da Subfamília G de Transportadores de Cassetes de Ligação de ATP/genética , Membro 2 da Subfamília G de Transportadores de Cassetes de Ligação de ATP/metabolismo , Relevância Clínica , Proteínas de Neoplasias/genética , Proteínas de Neoplasias/metabolismo , Transportadores de Cassetes de Ligação de ATP/genética , Transportadores de Cassetes de Ligação de ATP/metabolismo , RNA Mensageiro/genética , Resistencia a Medicamentos Antineoplásicos/genética , Subfamília B de Transportador de Cassetes de Ligação de ATP/genética
12.
Curr Drug Deliv ; 20(5): 457-482, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-35469568

RESUMO

Solid tumor is one of the highly prevalent cancers among humans and the treatment is often restricted by drug resistance to chemotherapeutics. One of the main reasons might be attributed to the limited penetration ability of drugs through tumor tissues due to heterogeneity within the tumor microenvironment. Over the recent years, so much research has been carried out for developing phytochemicals as cancer therapeutic agents. These are well-established as potential candidates for preventing and treating cancer, especially solid tumors, but have limited clinical applications due to their large molecular size, low bioavailability, stability, and target specificity, along with other side effects when used at high concentrations. There has been a widely proposed nano delivery system of bioactive constituents to overcome these obstacles. This nanostructured system might be able to potentiate the action of plant constituents, by reducing the side effects at a lesser dose with improved efficacy. Indeed, nanosystems can deliver the bioactive constituents at a specific site in the desired concentration and avoid undesired drug exposure to normal tissues. Furthermore, these nanoparticles demonstrate high differential absorption efficiency in the target cells over normal cells by preventing them from interacting prematurely with the biological environment, enhancing the cellular uptake and retention effect in disease tissues, while decreasing the toxicity. This review discusses various treatment stratagems used for the management of solid tumors with special emphasis on nanocarrier systems as a potential treatment strategy for herbal drugs. This also covers a wide list of plants that are used for the treatment of solid tumors and cancers along with their mechanisms of action and enlists various nanocarrier systems used for different phytoconstituents. This review gives a brief idea about different plants and their constituents exploited for their anticancer/antitumor potential along with several nanocarrier systems employed for the same and gives future directions to stress the nanotechnology platform as a valuable approach for the prevention and treatment of solid tumors.


Assuntos
Nanopartículas , Nanoestruturas , Neoplasias , Humanos , Neoplasias/tratamento farmacológico , Nanotecnologia , Preparações Farmacêuticas , Sistemas de Liberação de Medicamentos , Microambiente Tumoral
13.
Artigo em Inglês | MEDLINE | ID: mdl-36568270

RESUMO

Plant-derived flavonoids have been the focus of research for many years mainly in the last decade owing to their therapeutic properties. So far, about 4000 flavonoids have been identified from plants and diosmin (a flavone glycoside) is one of them. Online databases, previous studies, and reviews have been used to gather information on anti-oxidant, immunomodulatory, anti-cancer, anti-parasitic, and anti-microbialproperties of diosmin. Effects of diosmin in combination with other flavonoids have been reviewed thoroughly and its administrative routes are also summarized. Additionally, we studied the effect of diosmin on critical protein networks. It exhibits therapeutic effects in diabetes and its associated complications such as neuropathy and dyslipidemia. Combination of diosmin with hesperidin is found to be very effective in the treatment of chronic venous insufficiency and haemorrhoids. Diosmin is an exquisite therapeutic agent alone as well as in combination with other flavonoids.

14.
Curr Microbiol ; 79(8): 223, 2022 Jun 15.
Artigo em Inglês | MEDLINE | ID: mdl-35704102

RESUMO

This study evaluates the antibacterial activity and phytochemical characterizations of Andrographis paniculata extract (APE) and Berberis aristata extract (BAE). The stem of Andrographis paniculata (AP) and root of Berberis aristata (BA) were extracted with methanol. The results confirmed that APE and BAE possess high phenolic and flavonoid content. The antioxidant activity of the APE and BAE showed an elevated potential to scavenge DPPH (2,2-diphenyl-1-picrylhydrazyl) radicals with IC50 of 95.03 µg/mL and 256.26 µg/mL, respectively. A total of 35 and 32 metabolites in APE and BAE, respectively, were identified through mass spectrometry analysis, whereas 17 and 12 metabolites in APE and BAE, respectively, were detected through high-performance thin-layer chromatography (HPTLC) fingerprinting profiling. Antibacterial activity of the extracts was performed by the well diffusion and microdilution method, and the findings showed that APE and BAE had antibacterial activities against E. coli and S. aureus. The growth curve and time-kill study showed that the extracts had a bacteriostatic effect. A combination study with the standard drug was carried out using the microdilution checkerboard method in which most of the combinations showed synergistic interactions. The findings of this study have shown that APE and BAE are good sources of antibacterial compounds and can be used for treating infectious diseases caused by E. coli and S. aureus.


Assuntos
Berberis , Staphylococcus aureus Resistente à Meticilina , Andrographis paniculata , Antibacterianos/farmacologia , Berberis/química , Escherichia coli , Metanol , Extratos Vegetais/química , Extratos Vegetais/farmacologia , Staphylococcus aureus
15.
Curr Drug Metab ; 23(10): 800-817, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35430962

RESUMO

Nanoparticles have gained prominence in many areas and domains worldwide, such as metallic NP, carbon dots, quantum dots, polymeric NP, nano-suspension, nanocrystals, solid lipid nanoparticles (SLN), etc. and have been applied in the field of medicine as nanomedicine with promising results. Rise in cancer mortality rate has been an issue for a long time with female breast cancer as one of the most detected cancers. No permanent treatment has been developed till date could combat breast cancer with minimum side effects that are not long-lasting as there is no proper technique through which the anticancer drugs can recognize benign or malignant or normal cells that causes systematic toxicity. Advancement in technology has led to the discovery of many biological pathways and mechanisms. Tumor cells or cancer cells overexpress some high-affinity receptors that can be targeted to deliver the anticancer drugs at specific site using these pathways and mechanisms. Solid lipid nanoparticles (SLN) are among some of the excellent drug delivery systems, especially stealth SLN (sSLN). SLN, when conjugated with a ligand (called as sSLN), has affinity and specificity towards a specific receptor, and can deliver the drug in breast cancer cells overexpressing the receptors. Using this technique, various investigations have reported better anti-breast cancer activity than simple SLN (non-conjugated to ligand or no receptor targeting). This review includes the investigations and data on receptor-mediated targeting in breast cancer from 2010 to 2021 by searching different databases. Overall, information on SLN in different cancers is reviewed. In vivo investigations, pharmacokinetics, biodistribution, and stability are discussed to describe the efficacy of sSLN. Investigations included in this review demonstrate that sSLN delivers the drug by overcoming the biological barriers and shows enhanced and better activity than non-conjugated SLN which also verifies that a lesser concentration of drug can show anti-breast cancer activity. The efficacy of medicines could be increased with lower cancer deaths through stealth-SLN. Due to the low cost of synthesis, biocompatibility and easy to formulate, more study is needed in vitro and in vivo so that this novel technique could be utilized in the treatment of human breast cancer.


Assuntos
Antineoplásicos , Neoplasias da Mama , Nanopartículas , Feminino , Humanos , Distribuição Tecidual , Ligantes , Linhagem Celular Tumoral , Antineoplásicos/farmacologia , Antineoplásicos/uso terapêutico , Antineoplásicos/química , Neoplasias da Mama/tratamento farmacológico , Nanopartículas/química , Sistemas de Liberação de Medicamentos , Portadores de Fármacos
16.
Front Genet ; 13: 842943, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35309123

RESUMO

Background: Forkhead box "O" one which is member of Forkhead box family of transcription factors is known to play key role in different physiological processes including cell cycle arrest, autophagy, and apoptosis. FOXO1 is defined to play tumor suppressive role in various malignancies including breast cancer and its Dysregulation is frequently reported. However, the evaluation of FOXO1 promoter methylation and its expression at mRNA and protein level in different stages of breast cancer and its association with different clinical parameters is still not studied. Therefore, for better understanding the role of FOXO1 in breast cancer, in our study we examined the FOXO1 mRNA and protein expression in Breast cancer samples of Indian breast cancer patients. Results: Total 127 breast cancer samples along with adjacent normal tissue (n = 127) were analyzed through methylation specific PCR (MS-PCR), mRNA expression (Real-time PCR) and Immunohistochemistry (IHC). We detected 69.29% cases to be downregulated at the mRNA level, and 77.95% of cases exhibited no or low protein expression. In our data we report a significant association (p = 0.0001) between the downregulated protein expression and promoter hypermethylation of FOXO1 gene. We also found a significant correlation of FOXO1 mRNA level with Age (p = 0.008), age at first live birth (p = 0,003), tumor size (p = 0.05) and lymph node status (p = 0.01). Conclusion: we in our study report the tumor suppressive role of FOXO1 in case of Indian breast cancer patients and our data suggest it to exhibit prognostic importance. However, further research is needed to evaluate FOXO1 significance in diagnostic and therapeutic targeting in breast cancer cases.

17.
Curr Pharm Biotechnol ; 23(13): 1527-1540, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35081888

RESUMO

The use of herbal medicines and supplements in the last thirty years has increased enormously. Herbal medication has demonstrated promising and effective potential against various diseases. Herbal and phytoconstituent medications are gaining popularity globally and many people are adopting herbal remedies to deal with different health issues. The indiscriminate use of antibiotics, due to the development of antimicrobial resistance, poses an unprecedented problem for human civilization. Bacterial infections are difficult to cure because of the propensity of microbes to acquire resistance to a wide range of antimicrobial drugs. New compounds are being explored and quantified for possible antibacterial activity with little or no side effects. Researchers are investigating the range of therapeutic plants mentioned in Unani, Ayurveda, and Siddha around the globe. Known and commonly acclaimed global databases such as PubMed, Research Gate, Science Direct, Google Scholar were searched using different search strings such as Indian medicinal plants, multidrug resistance (MDR), thin layer chromatography (TLC), antimicrobials, and Synergism were used in diverse combinations to reclaim numerous citations associated with this area. Thus, the current review aims to shed a light on the information of medicinal plants as a potential foundation of herbal drugs and elucidate how synergism and TLC bioautography play a crucial role in finding antimicrobial compounds.


Assuntos
Anti-Infecciosos , Plantas Medicinais , Antibacterianos/farmacologia , Anti-Infecciosos/farmacologia , Anti-Infecciosos/uso terapêutico , Resistência a Múltiplos Medicamentos , Humanos , Extratos Vegetais/química , Extratos Vegetais/farmacologia , Extratos Vegetais/uso terapêutico , Plantas Medicinais/química
18.
J Biomol Struct Dyn ; 40(20): 10319-10331, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-34176437

RESUMO

Cancer cells ferment glucose, even under aerobic conditions, following a phenomenon known as the 'Warburg effect.' Hexokinase 2 (HK2) catalyzes the crucial step of phosphorylation of glucose for subsequent utilization in glycolysis and other pathways. HK2 has been proposed as a potential therapeutic target for anti-cancer therapy because of its enhanced expression in glucose-dependent tumors. Here, we have employed structure-based virtual screening using in-house library to identify potential phytoconstituents which could inhibit the HK2 activity. The initial hits were selected based on their binding affinity towards HK2 using the molecular docking approach. Subsequently, the filters for physicochemical properties, PAINS patterns and PASS evaluation were applied to find potential hits against HK2. Finally, we have identified epigallocatechin gallate (EGCG) and quercitrin, two natural compounds with appreciable binding affinity, efficiency and specificity towards the HK2 binding pocket. Both compounds were found to be binding preferentially to the HK2 active site and showed a decent set of drug-like properties. All-atom molecular dynamics (MD) simulations for 100 ns were carried out to see the conformational dynamics, complexes stability and interaction mechanism of HK2 with EGCG and quercitrin. MD simulation results showed that HK2 forms stable protein-ligand complexes with EGCG and quercitrin with consistency throughout the trajectory. Overall, these findings suggest that EGCG and quercitrin might be further exploited as promising scaffolds in the drug development process against HK2..Communicated by Ramaswamy H. Sarma.


Assuntos
Hexoquinase , Simulação de Dinâmica Molecular , Simulação de Acoplamento Molecular , Ligantes , Glucose
19.
Front Oncol ; 12: 1078051, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36727057

RESUMO

Background: FOXO3, a member of the FOX transcription factor family, is frequently described as being deregulated in cancer. Additionally, notable role of FOXO3 can be easily recognized in the process of ageing and survival. Even though various studies have been done to acknowledge the tumour-suppressive or oncogenic role of FOXO3 in cancer, still there exist a lack of understanding in terms of cancer prognosis and treatment. Therefore, to provide better insight, our study aims to evaluate the role and function of FOXO3 in breast cancer in Indian female patients. We examined the FOXO3 expression levels in breast cancer samples by analyzing mRNA and protein expression along with its clinicopathological parameters. Results: A total of 127 cases of breast cancer with equal normal cases (n=127) were assessed with methylation (MS-PCR), Immunohistochemistry (IHC), mRNA expression using Real-time PCR was analysed and 66.14% cases at mRNA level were found to be downregulated, while 81.10% of cases had little or very little protein expression. Our data state, the promoter hypermethylation of the FOXO3 gene and the downregulated protein expression are significantly correlated (p=0.0004). Additionally, we found a significant correlation between the level of FOXO3 mRNA with ER (p=0.04) and status of lymph node (p=0.01) along with this. Conclusion: Data suggests the prognostic significance and the tumour-suppressive role of FOXO3 in breast cancer cases studied in India. However, there is a need for the extended research targeting FOXO3 to measure its clinical potential and develop well-defined therapeutic strategies.

20.
Front Genet ; 12: 781400, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34938323

RESUMO

Background: FOXP3 gene, known to be a potential tumor suppressor, has been identified to interact with HER2 in mammary cancer. Moreover, the high expression of FOXP3 serves as a good predictor of the survival of patients in breast cancer, prostate cancer, and gastric cancer. The expression and epigenetic alterations were evaluated in female breast cancer patients. Material and Methods: Expression studies at the mRNA level and protein level were conducted in 140 breast cancer cases by real-time PCR and immunohistochemistry, respectively. Epigenetic studies were also conducted by analyzing the methylation status at the promoter region of the gene using MS-PCR. Results: FOXP3 mRNA expression and protein expression were downregulated in breast cancer patients. The absence of FOXP3 protein expression is significantly associated with promoter methylation, where 70 methylated cases exhibited protein loss (70/95, 73.6%). Statistically, we also found a significant correlation between FOXP3 protein expression and TNM stage, promoter methylation, and histological grade. The methylated FOXP3 cases that did not express protein were also significantly associated with positive lymph node metastasis and HER-2 status. Conclusion: The expression profile of FOXP3 may serve as a prognostic factor. In short, FOXP3 may stand in the most crucial list of biomarkers for breast cancer, bringing compelling results in terms of treatment and management of the disease.

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