Published on Friday, 23 April 2021
Abstract
Vitamin E plays an exemplary role in living organisms. α-Tocopherol is the most superior and active form of naturally occurring vitamin E that meets the requirements of human beings as it possesses the α-tocopherol transfer protein (α-TTP).
α-Tocopherol deficiency can lead to severe anemia, certain cancers, several neurodegenerative and cardiovascular diseases, and most importantly male infertility.
As a result of the depletion of its natural sources, researchers have tried to employ metabolic engineering to enhance α-tocopherol production to meet the human consumption demand. However, the metabolic engineering approach relies on the metabolic flux of a metabolite in its biosynthetic pathway. Analysis of the metabolic flux of a metabolite needs a method that can monitor the α-tocopherol level in living cells.
This study was undertaken to construct a FRET (fluorescence resonance energy transfer)-based nanosensor for monitoring the α-tocopherol flux in prokaryotic and eukaryotic living cells. The human α-TTP was sandwiched between a pair of FRET fluorophores to construct the nanosensor, which was denoted as FLIP-α (the fluorescence indicator for α-tocopherol). FLIP-α showed excellence in monitoring the α-tocopherol flux with high specificity.
The sensor was examined for its pH stability for physiological applications, where it shows no pH hindrance to its activity. The calculated affinity of this nanosensor was 100 μM. It monitored the real-time flux of α-tocopherol in bacterial and yeast cells, proving its biocompatibility in monitoring the α-tocopherol dynamics in living cells. Being noninvasive, FLIP-α provides high temporal and spatial resolutions, which holds an indispensable significance in bioimaging metabolic pathways that are highly compartmentalized.
About this publication.
See also:
- Official Web Site: The Di Bella Method;
- The Di Bella Method (A Fixed Part - Alpha tocopheryl acetate/Vitamin E, approximately 20 grams per day orally);
- Cancer and Vitamin E (analogues and/or derivatives) and cancer - In vitro, review and in vivo publications;
- Solution of retinoids in vitamin E in the Di Bella Method biological multitherapy;
- The Di Bella Method (A Fixed Part - All-Trans Retinoic Acid, Analogues and/or Derivatives - Approximately 60mg per day orally: 40mg per day Beta-Carotene/β-Carotene, 10mg per day ATRA and 10mg per day Axerophthol palmitate);
- All-Trans-Retinoic Acid (ATRA - analogues and/or derivatives) - In vitro, review and in vivo publications;
- The Di Bella Method (A Fixed Part - Vitamin C/Ascorbic Acid, 2–4 grams, twice a day orally);
- The Di Bella Method (A Fixed Part - Dihydrotachysterol, Alfacalcidol, synthetic Vitamin D3);
- Vitamin D (analogues and/or derivatives) and cancer - In vitro, review and in vivo publications;
- Beta-Carotene or β-carotene in Solution of retinoids in vitamin E in the Di Bella Method biological multitherapy;
- The Di Bella Method (A Variable Part - Omega 3 Essential/Unsaturated Fatty Acids. From 1.5 grams up to 3.0 grams per day orally);
- The Synergism of Somatostatin, Melatonin, Vitamins Prolactin and Estrogen Inhibitors Increased Survival, Objective Response and Performance Status In 297 Cases of Breast Cancer;
- Complete objective response, stable for 5 years, with the Di Bella Method, of multiple-metastatic carcinoma of the breast;
- Evaluation of the safety and efficacy of the first-line treatment with somatostatin combined with melatonin, retinoids, vitamin D3, and low doses of cyclophosphamide in 20 cases of breast cancer: a preliminary report;
- The Di Bella Method (DBM) improved survival, objective response and performance status in a retrospective observational clinical study on 122 cases of breast cancer;
- Complete objective response to biological therapy of plurifocal breast carcinoma;
- Recurrent Glioblastoma Multiforme (grade IV – WHO 2007): a case of complete objective response achieved by means of the concomitant administration of Somatostatin and Octreotide – Retinoids – Vitamin E – Vitamin D3 – Vitamin C – Melatonin – D2 R agonists (Di Bella Method – DBM) associated with Temozolomide;
- The Di Bella Method DBM improved survival objective response and performance status in a retrospective observational clinical study on 23 tumours of the head and neck;
- Chronic Lymphocytic Leukemia: Long-Lasting Remission with Combination of Cyclophosphamide, Somatostatin, Bromocriptine, Retinoids, Melatonin, and ACTH;
- Somatostatin, retinoids, melatonin, vitamin D, bromocriptine, and cyclophosphamide in advanced non-small-cell lung cancer patients with low performance status;
- Somatostatin, retinoids, melatonin, vitamin D, bromocriptine, and cyclophosphamide in chemotherapy-pretreated patients with advanced lung adenocarcinoma and low performance status;
- Observations on the Report of a case of pulmonary adenocarcinoma with lymph node, hepatic and osseus metastasis;
- Pleural Mesothelioma: clinical records on 11 patients treated with Di Bella's Method;
- Malignant pleural mesothelioma, stage T3-T4. Consideration of a case study;
- Excellent result in a Mesothelioma case treated exclusively with Di Bella Method for over 4 years and still treatment with positive results;
- A case of advanced Multiple Myeloma treated with Di Bella Method (DBM) into total remission for 13 years;
- Neuroblastoma: Complete objective response to biological treatment;
- Cyclophosphamide plus Somatostatin, Bromocriptin, Retinoids, Melatonin and ACTH in the Treatment of Low-grade Non-Hodgkin’s Lymphomas at Advanced Stage: Results of a Phase II Trial;
- Relapse of High-Grade Non-Hodgkin’s Lymphoma After Autologous Stem Cell Transplantation: A Case Successfully Treated With Cyclophosphamide Plus Somatostatin, Bromocriptine, Melatonin, Retinoids, and ACTH;
- Low-grade Non-Hodgkin Lymphoma at Advanced Stage: A Case Successfully Treated With Cyclophosphamide Plus Somatostatin, Bromocriptine, Retinoids, and Melatonin;
- The Di Bella Method (DBM) improved survival, objective response and performance status in a retrospective observational clinical study on 55 cases of Lymphomas;
- Large B-cells Non-Hodgkin's Lymphoma, Stage IV-AE: a Case Report;
- Non-Hodgkin's Lymphoma, Stage III-B-E: a Case Report;
- Oesophageal squamocellular carcinoma: a complete and objective response;
- Pancreatic Adenocarcinoma: clinical records on 17 patients treated with Di Bella's Method;
- The Di Bella Method Increases by the 30% the survival rate for Pancreas tumors and for this reason should be proposed as first line therapy for this type of cancer;
- The Di Bella Method (DBM) in the treatment of prostate cancer: a preliminary retrospective study of 16 patients and a review of the literature;
- Congenital fibrosarcoma in complete remission with Somatostatin, Retinoids, Vitamin D3, Vitamin E, Vitamin C, Melatonin, Calcium, Chondroitin sulfate associated with low doses of Cyclophosphamide in a 14-year Follow Up.
