Search results for “Anticancer

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12 articles

Correlating 13C Isotope in Oligomeric Proanthocyanidins with their Anticancer Properties

Oct 2022 DOI 10.14302/issn.2572-3030.jcgb-22-4284
B. Little ReginaldCorresponding author Department of Chemistry, Stillman College, Tuscaloosa, Alabama

Upon considering the anticancer effects of larger oligomeric proanthocyanidins and observing various papers reporting the high resolution mass spectroscopy of the oligomeric proanthocyanidins, it is determined that the unusual 13C enrichment in some plant oligomeric proanthocyanidins may be responsible for the anticancer activities of these food products. Such correlation of the 13C in the oligomeric proanthocyanidins also correlate with their scavenging of free-radicals, anti-virial and anti-bacterial properties. Proanthocyanidins in grape seeds are observed to have high enrichment in heavy isotopes of 2H, 13C, 15N and/or 17O. Mass analysis of DNA from human cancer cells are compared to normal human cells and cancer cells show bond specific enrichment of heavy isotopes in nucleotides G, A, T and C. On such basis, this study suggests possible stronger interactions of proanthocyanidins with DNA in cancer verses DNA in normal cells due to heavy isotope bond specific enrichments in both proanthocyanidins and the cancer DNA. Such 13C interactions from oligomeric proanthocyanidins with nucleic acids and proteins involved in replications, transcriptions and translations in cancer cells for interacting and chemically altering anabolism and cell division of the cancer cells are consistent with the author’s mechanism for normal cell to cancer cell transformations via possible replacements of primordial 1H, 12C, 14N, 16O, and 24Mg isotopes by nonprimordial 2H, 13C, 15N, and 17O and 25Mg isotopes in the proteins and nucleic acids. Such is also consistent with the proposed treatment for cancer by the author by use of foods containing proteins, nucleic acids, carbohydrates and/or drug molecules enriched with the nonprimordial isotopes of 2H, 13C, 15N, and 17O and 25Mg.

Assessment of Anticancer Effect of Alendronate in Breast Cancer: An In vitro Study

Aug 2019 DOI 10.14302/issn.2576-6694.jbbs-19-2953
Syed Amber Ilyas NidaCorresponding author National Center for Proteomics, University of Karachi, Karachi 75270, Pakistan

Breast cancer has high incidence in women from both developed and developing countries. Approximately 2 million women are diagnosed with breast cancer in 2018. In Asia, unfortunately Pakistan leads the highest number of breast cancer patients. Various treatment strategies are present but they are not well developed. There is a great need to develop effective methods for early detection and treatment of the disease. For cancer treatment chemotherapeutic interventions have always been a method of choice. One of the mechanisms involved in cancerous cell proliferation is Mevalonate (MVA) pathway. It is hypothesized that arresting MVA pathway leads to cell death hence cancer cell growth is suppressed. Various inhibitors of MVA pathway have been studied that can suppress cell proliferation. Nitrogen containing bisphosphonates are MVA pathway inhibitor and clinically used for treatment of bone diseases. Their anticancer efficacy is also reported. Current study focuses on alendronate, a nitrogen containing bisphosphonate to examine their anticancer effect on breast cancer cell line. Results of this study may help in addition of new anticancer drug for breast cancer.

Biotechnological application of Cyanobacteria in, Agriculture, Medicine and Environment

Jul 2022 DOI 10.14302/issn.2691-6622.ijar-22-4221
Tadesse TeferaCorresponding author National Agricultural Biotechnology Research Center, Holotta, Ethiopia

Cyanobacteria are considered as one of the important group of organisms having significant ecological, industrial, and biotechnological importance. Cyanobacteria have gained a lot of atten ion in recent years because of their potential applications in biotechnology. This review presents an overview of uses of cyanobacteria in industry agriculture, environment pharmaceutical and medicinal roles and to provide future prospects of the field of cyanobacteria biotechnology. Nowadays cyanobacteria have gained attention researchers because of their various potential applications such as food and feed pharmaceutical industries in medicine, in bioremediation, soil conditioning, as biopolymers, bio adhesives, bioenergy and biofertilizers. Due to presence of wide spectrum of bioactive compounds cyanobacteria has possesses antiviral, antibacterial, antifungal and anticancer activities. Several strains of cyanobacteria are also rich in food supplements. Further nitrogen fixing and soil conditioning capacity of cyanobacteria attracted researchers. Recent studies have also shown that cyanobacteria have capability to degrade environmental pollutants and are also being used as a promising source of alternative energy. Cyanobacteria has also its limitations through bloom production it influnces on the nutrient availability and usage of phytoplankton plants. This review is an effort to forward the valuable information about the qualities of cyanobacteria and their potential role in solving the agricultural and environmental problems for the future welfare of the planet.Thus more efforts should be made in search of more potential strains of cyanobacteria to ensure maximum production of the desired products.

New Approach in Treatment of Cancer & Viral Infection by Apis Mellifera L Venom Extracts (Honeybees Venom)

Feb 2022
Ahmed Kamal SamiaCorresponding author Professor Dr. Virology department, Animal Health Research Institute, Egypt

Cancer cells need strong drug to be eliminated. Cancer lesions cure could achieve by topical application of crude bee venom. Bee venom medication used to prevent malignancies in groups most at risk (predisposing factors). Bee venom crosses the blood brain barriers because its components are very small. However, Bee venom contraindicated administered by intravenous injection because it’s hemolytic substance, mellitin which is powerful anticoagulant. However, the cationic peptides mellitin govern the mode of action of bee venom as anticancer and antiviral in vivo; 1 there is a negative charge on cancer cells, viral infected cells, diseased cells, and generally any cells that contain toxins or damage, and viruses are carrying negative charge even when it is outside the living body. 2Bee venom component (melittin) carries a positive charge, it destruct negatively charged cancer cells. 3 The role that the herpes virus is likely to play in increasing the severity of cancerous diseases, worsen the conditions: herpes viruses are opportunistic viruses that strike the body whose immunity is weakened for any reason. Therefore, the role of herpes virus must be neutralized when you planning to treat a cancer patient. Fortunately, bee venom is a powerful antiviral, and thus we hit three birds with one stone, that is, we kill cancer cells, kill opportunistic viruses, and improve tissue immunity to participate in the fight against cancer and get rid of toxic exudates more efficiently.

RETRACTED: Non-Surgical Removal of Basal Cell Carcinoma by Apis Mellifera L Venom

Dec 2020
Ahmed Kamal SamiaCorresponding author Ph.D. ARC, Egypt.

This article has been retracted on March 01, 2021. VIEW THE RETRACTION NOTICE (https://openaccesspub.org/jsce/article/2243) Background Apis Mellifera L venom (Honeybees) is potent and safe anticancer drug. The present case is Basal Cell Carcinoma (SBCC), recurrent and invasde the skin of head (upper right, in front of the right ear). The patient was 65 years old in time of first intervention and the origin of BCC was primarily seen as abnormal growths and changes in birth mole on right side of head. Materials & Methods Preparation Bee Venom solution: Bee venom powder (crude) of dose 1gm was dissolved in 1000 ml of sterile distilled water then filtered by 0.22 micron syring filter. That final concentration of the stock bee venom become 1 ug /ml (i.e. 1ul=1 ug), and kept at -20◦C. (1mg (dried BV) + 1ml (water) = Final concentration (1ug/1 ul)). Before this novel intervention, allergy test performed by subcutaneous injection of small dose of bee venom (0.1 ml) and wait for at least one hour. The patient was not hypersensitive to honeybees’ venom. First stage of treatment: 1- Syringe of 1ml volume was used for direct local injection of cancer area by 0.3 ml from prepared Honeybees venom (0.1 % conc.). 2- At the same time, subcutaneous injection of 0.5 ml of bee venom solution infiltrated around the affected ear. 3- Topical application of the bee venom ointment 2% (bee venom in Vaseline) inside affected ear to protect the ear drum. This process repeated daily with cleaning of the ear every time by suitable safe and sterile saline solutions. 2nd stage: daily S/C injection in axillary area upper lymph nodes of 0.3 ml / bee venom ‘total doses 0.6 ml BV’ (left & right). 3rd stage: bee venom dissolved in sterile Clove oil was applied on inner ear above the drum. 4th stage: Management of healing process was enhanced by ascorbic acid solution as topical application on dead cancer cells and to help in removal of exudates and debris. Results The complete removal of malignant growths in affected ear achieved after 1 month from first bee venom injections. However; the cancerous areas under the second surgical intervention were treated during the next month. Conclusions Apis Mellifera L venom as anticancer drug is totally different from using direct stings as a method of Apitherapy, that because collection of bee venom lead to evaporating of most allergic substance that present in bees stings, also it can be used per os in people who exhibit different degrees of allergy against the drug safely.

pH-Sensitive Nanomedicine for Treating Gynaecological Cancers

Feb 2020 DOI 10.14302/issn.2381-862X.jwrh-19-3143
Vishwanath Prasad PramodCorresponding author Center for Biomedical Research, Population Council, The Rockefeller University, 1230 York Avenue, New York, NY 10065, USA

Emergence of various nanoscale drug carrier platforms as Drug Delivery Systems (DDS) has revolutionized the field of medicine.Nonetheless, theside-effects due to non-specific distribution of anticancer therapeutics in normal, healthy tissues remain to be a prime pitfall in curing cancers. Therefore, to achieve a better therapeutic efficacy, the use of a target-specific delivery, combined with a stimuli-responsive nanocarrier system, particularly pH-sensitive nanosystems offer an attractive strategy. Targeted drug delivery through pH-sensitive nanosystems offer the potential to enhance the therapeutic index of anticancer agents, either by increasing the drug concentration in tumor cells and/or by decreasing the exposure in normal host tissues. Therefore, nanoscale-based drug delivery through pH-sensitive nanosystems seem to be a boon for treating gynaecological cancers (as well as other cancers) without side-effects or with least harm to normal healthy tissues.

Complementary and Alternative Treatments for Cancer Prevention and Cure (Part 1)

Oct 2019 DOI 10.14302/issn.2641-7669.ject-19-3040
Kader Mohiuddin AbdulCorresponding author Secretary & Treasurer, Dr. M. Nasirullah Memorial Trust, Tejgaon, Dhaka 1215

Many lay people along with some so called “key opinion leaders” have a common slogan “There's no answer for cancer”. Again, mistake delays proper treatment and make situation worse, more often. Compliance is crucial to obtain optimal health outcomes, such as cure or improvement in QoL. Patients may delay treatment or fail to seek care because of high out-of- pocket expenditures. Despite phenomenal development, conventional therapy falls short in cancer management. There are two major hurdles in anticancer drug development: dose-limiting toxic side effects that reduce either drug effectiveness or the QoL of patients and complicated drug development processes that are costly and time consuming. Cancer patients are increasingly seeking out alternative medicine and might be reluctant to disclose its use to their oncology treatment physicians. But there is limited available information on patterns of utilization and efficacy of alternative medicine for patients with cancer. As adjuvant therapy, many traditional medicines shown efficacy against brain, head and neck, skin, breast, liver, pancreas, kidney, bladder, prostate, colon and blood cancers. The literature reviews non-pharmacological interventions used against cancer, published trials, systematic reviews and meta-analyses.

In Silico Inhibition of Essential Candida albicans Proteins by Arenicin, a Marine Antifungal Peptide

Jan 2019 DOI 10.14302/issn.2643-0282.imsj-18-2448
Santiago Freitas e Silva KleberCorresponding author Biological Sciences Institute, Federal University of Goiás, Brazil

Fungal infections increased substantially in the last years, becoming a relevant public health problem. Many of these infections account for high rates of morbidity and mortality. The emergence of resistant fungal clinical isolates have also motivate studies to find new antifungal therapies. Candida albicans is an oportunistic pathogen and affects a great number of immunocompromised patients worldwide. The marine ecosystem has been considered a rich source of bioactive metabolites due to the complexity and originality of its structures. Proteins and peptides from marine organisms have been shown to have antiviral, anti-inflammatory, antimalarial, anticancer, antimicrobial and antifungal properties. Arenicins are antimicrobial peptides isolated from the marine lugworm Arenicola marina with 21 amino acid residues in a β-hairpin structure. Dihydrofolate reductase, exo-b-(1,3)-glucanase and sterol 14α-demethylase are essential C. albincas enzymes that take part in DNA, cell wall and membrane metabolism, respectively. The present study evaluates the interaction of arenicin with important enzymes of C. albicans related to cell wall, ergosterol and DNA metabolism in order to elucidate possible molecular targets. We showed through an in silico approach, that a single compound from a marine worm (A. marina), can bind to three C. albicans essential proteins. The interaction occurs in regions inside the active site or at least near, with amino acid residues evaluated as hot spots. Arenicin is a new promising antifugal drug. The next step is to investigate protein-protein interactions performed by DHFR, EBG and CYP51 and assess whether arenicin is able to disrupt essential interaction or not.

Enhanced Alkaloid Production from Cell Culture System of Catharanthus roseus in Combined Effect of Nutrient Salts, Sucrose and Plant Growth Regulators

Dec 2018 DOI 10.14302/issn.2576-6694.jbbs-18-2475
Kumar Srivastava RajeshCorresponding author Department of Biotechnology, GITAM Institute of Technology, Gandhi Institute of Technology and Management, (GITAM) (Deemed to be University), Rushikonda, Visakhapatnam (A.P.), India.

Callus and biomass culture of Catharanthus roseus L. were established to check for the presence of total alkaloid and its subsequent yield. Various treatments like strength of nutrient salts, sucrose concentrations and combinations of plant growth regulators (PGR’s) were applied to both MS and B5 in agar as well as suspension medium to test their effects on enhanced alkaloid content and its yield. There was no significant difference in any of the observable parameters of fresh wt, dry wt, alkaloid content, production, productivity and yield if the culture were treated similarly in both types of media formulations (MS or B5 salts). Physical state (agar solidified or the liquid suspension) of the medium had significant effect on all the parameters particular on fresh wt, alkaloid content and yields. Although, the fresh wt. and dry wt. of biomass in suspension culture was 2-3 times less than that of callus obtained from agar medium. However, the alkaloid content and yield was 2-3 times higher in suspension culture compared to agar medium in similar treatments. The highest alkaloid content observed was 5.67mg/g dwt in B5 suspension medium containing 3% sucrose and modified with 0.5mg/l 2,4-Dichlorophenoxy acetic acid (2,4-D) + 1 mg/l Kinetin (KIN) + 2mg/l α- naphthalene acetic acid (NAA). The combined effects of these factors on the enhanced production of total alkaloids were expected to contain higher yield of anticancer vinblastine and vincristine in the cell suspension culture system.

Efficacy of The Immunotargeting Therapeutic Antibody Trastuzumab in HER2-Positive Advanced Gastric Cancer: A Meta-Analysis

Feb 2018
Zeng JinchengCorresponding author Dongguan Key Laboratory of Medical Bioactive Molecular Developmental and Translational Research, Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Guangdong Medical University, Dongguan 523808, China

Gastric cancer is one of the most common types of cancer in the world, usually diagnosed at an advanced stage. Despite the advances in specific anticancer agents' development, the survival rates remain modest, even in early stages. HER2 overexpression was identified on 15% - 20% of gastric cancer patients. Trastuzumab-based chemotherapy provides obvious efficacy improving outcomes of HER2 positive gastric cancer patients. We performed a meta-analysis to estimate the efficacy of the addition of trastuzumab over chemotherapy. We identified randomized controlled trials (RCTs) which compare the addition of trastuzumab therapy to chemotherapy alone reporting progression-free survival (PFS), time to progression (TTP), overall survival (OS), and/or response rates as our eligible trials. Night trials including 1101 patients were eligible for analysis. Trastuzumab therapeutic partners were cisplatin (9 RCTs), 5-fluorouracil (8 RCTs), capecitabine (6 RCTs), irinotecan (1 RCTs), docetaxel (1 RCTs), oxaliplatin (1 RCTs), and leucovorin (1 RCTs). The addition of trastuzumab agents improved OS (HR = 0.80; 95% CI = 0.72 - 0.89), PFS (HR = 0.70; 95% CI = 0.59 - 0.83), TTP (HR = 0.69; 95% CI = 0.57 - 0.83), and overall response rate (RR = 1.22; 95% CI = 0.94 - 1.59), DCR (RR = 1.19; 95% CI = 1.10 - 1.28). Our meta-analysis affirmed the efficacy of adding trastuzumab agent to chemotherapy in HER2 positive gastric cancer.

Protective Effect of Fennel Oil on Cyclophosphamide Inhibited Spermatogenesis and Induced Oxidative Stress in Albino Rats.

Oct 2017 DOI 10.14302/issn.2576-6694.jbbs-17-1742
A.Sakr SaberCorresponding author Department of Zoology, Faculty of Science, Menoufia University, Shebin El-kom, Egypt.

Introduction: Cyclophosphamide (CPA) is an anticancer drug .Fennel (Foeniculum vulgare Mill) essential oil is a traditional medicine used against many diseases. Aim. The present work studied the effect of fennel oil against testicular damage and oxidative stress induced by the anticancer drug, cyclophosphamide (CPA) in albino rats. Methods. Animals were divided into 4 groups: group1, control, group2, orally given fennel oil, group3 treated with CPA and group4 treated with CPA and fennel oil. The testes were removed for histological and immune histochemical preparation. Blood was collected and sera were prepared for hormonal and biochemical analysis. Results. The results revealed that CPA caused histological alterations in the testis including decrease in diameter and germinal epithelial height of the seminiferous tubules, degeneration of germ cells, cytoplasmic vacuolation and congestion of blood vessels. Cell proliferation marker was decreased and apoptotic marker caspase-3 was decreased. Biochemical results revealed decrease in the hormones LH and testosterone. Moreover, the serum activity of the antioxidant enzymes, SOD, CAT was decreased and the lipid peroxidation marker, DMA was increased. Treating rats with CPA and fennel oil caused an improvement in the histological structure of the testis. There was an increase in LH ,testosterone,SOD and CAT, while MDA level decreased. Conclusion. It is concluded that administration of fennel oil exhibited protective effects against CPA-induced reproductive toxicity in male rats. The protective effect of fennel oil might be due to induction of antioxidant defense systems by one or more of its constituents.

Combination of Radiation Therapy and Immunotherapy in the Treatment of Melanoma

Apr 2017 DOI 10.14302/issn.2372-6601.jhor-17-1463
Szablewska SylwiaCorresponding author Nicolaus Copernicus University, Faculty of Health Sciences; Department of Oncology, Radiotherapy and Ginecologic Oncology, Poland

Melanoma is considered to be a very aggressive cancer due to its rapid growth, early and multiple metastases and limited response to standard treatment. Many researchers have hypothesized that the combination of radiation therapy and immunotherapy in the treatment of melanoma primary tumors and metastases improves the efficiency of these methods as compared to their use separately. Therefore, combined therapy is an increasingly popular topic in radiation oncology. Although the mechanism of immune response to ionizing radiation remains unclear, known are the factors involved in the immune response, including NK and CD8(+) T cells. Many studies have demonstrated the importance of inflammatory factors, primarily cytokines, in the response to ionizing radiation. In turn, many cytokines released in an irradiated organ, such as tumor necrosis factor α (TNFα), interleukins IL1 and IL6 and transforming growth factor beta (TGFβ), can induce the production of significant amounts of reactive oxygen species that are associated with the induction of DNA damage in tumor cells. In relation to anticancer immunotherapy, the clinical data obtained to date can encourage future studies combining radiation therapy and the inhibitors of cell division checkpoints in the treatment of advanced melanoma. In a recent study, melanoma cell lines became more sensitive to radiation after BRAF inhibition, which provides a potential synergistic mechanism of BRAF inhibitor (BRAFi) combined with radiation therapy for better effects of treatment.  In this article, we present a systematic review of the literature on the use of the combination of radiation therapy and immunotherapy in the treatment of melanoma.

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