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Andze L, Vitolina S, Berzins R, Rizikovs J, Godina D, Teresko A, Grinberga S, Sevostjanovs E, Cirule H, Liepinsh E, Paze A. Innovative Approach to Enhance Bioavailability of Birch Bark Extracts: Novel Method of Oleogel Development Contrasted with Other Dispersed Systems. PLANTS (BASEL, SWITZERLAND) 2024; 13:145. [PMID: 38202453 PMCID: PMC10780823 DOI: 10.3390/plants13010145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2023] [Revised: 12/29/2023] [Accepted: 12/30/2023] [Indexed: 01/12/2024]
Abstract
Birch outer bark extract (BBE), containing pentacyclic triterpenes such as betulin, lupeol, and betulinic acid, is a widely recognized natural product renowned for its diverse pharmacological effects. However, its limited water solubility restricts its bioavailability. Therefore, the main objective is to enhance the bioavailability of BBE for pharmaceutical use. In this study, we aimed to develop a dispersion system utilizing a unique oleogel-producing method through the recrystallization of BBE from an ethanol solution in the oil phase. We generated an oleogel that demonstrates a notable 42-80-fold improvement in betulin and lupeol peroral bioavailability from BBE in Wistar rats, respectively. A physical paste-like BBE hydrogel developed with antisolvent precipitation showed a 16-56-fold increase in the bioavailability of betulin and lupeol from BBE in rat blood plasma, respectively. We also observed that the repeated administration of the BBE oleogel did not exhibit any toxicity at the tested dose (38.5 mg/kg betulin, 5.2 mg/kg lupeol, 1.5 mg/kg betulinic acid daily for 7 days). Betulin and betulinic acid were not detected in rat heart, liver, kidney, or brain tissues after the peroral administration of the oleogel daily for 7 days. Lupeol was found in rat heart, liver, and kidney tissues.
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Affiliation(s)
- Laura Andze
- Latvian State Institute of Wood Chemistry, 27 Dzerbenes Street, LV-1006 Riga, Latvia; (S.V.); (R.B.); (J.R.); (D.G.); (A.P.)
- ZS DOKTUS, 22 Pavila Street, LV-4101 Cesis, Latvia;
| | - Sanita Vitolina
- Latvian State Institute of Wood Chemistry, 27 Dzerbenes Street, LV-1006 Riga, Latvia; (S.V.); (R.B.); (J.R.); (D.G.); (A.P.)
| | - Rudolfs Berzins
- Latvian State Institute of Wood Chemistry, 27 Dzerbenes Street, LV-1006 Riga, Latvia; (S.V.); (R.B.); (J.R.); (D.G.); (A.P.)
| | - Janis Rizikovs
- Latvian State Institute of Wood Chemistry, 27 Dzerbenes Street, LV-1006 Riga, Latvia; (S.V.); (R.B.); (J.R.); (D.G.); (A.P.)
| | - Daniela Godina
- Latvian State Institute of Wood Chemistry, 27 Dzerbenes Street, LV-1006 Riga, Latvia; (S.V.); (R.B.); (J.R.); (D.G.); (A.P.)
| | | | - Solveiga Grinberga
- Latvian Institute of Organic Synthesis, Aizkraukles Street 21, LV-1006 Riga, Latvia; (S.G.); (E.S.); (H.C.); (E.L.)
| | - Eduards Sevostjanovs
- Latvian Institute of Organic Synthesis, Aizkraukles Street 21, LV-1006 Riga, Latvia; (S.G.); (E.S.); (H.C.); (E.L.)
| | - Helena Cirule
- Latvian Institute of Organic Synthesis, Aizkraukles Street 21, LV-1006 Riga, Latvia; (S.G.); (E.S.); (H.C.); (E.L.)
| | - Edgars Liepinsh
- Latvian Institute of Organic Synthesis, Aizkraukles Street 21, LV-1006 Riga, Latvia; (S.G.); (E.S.); (H.C.); (E.L.)
| | - Aigars Paze
- Latvian State Institute of Wood Chemistry, 27 Dzerbenes Street, LV-1006 Riga, Latvia; (S.V.); (R.B.); (J.R.); (D.G.); (A.P.)
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Mitra D, Saha D, Das G, Mukherjee R, Banerjee S, Alam N, Mustafi SM, Nath P, Majumder A, Majumder B, Murmu N. Lupeol synergizes with 5-fluorouracil to combat c-MET/EphA2 mediated chemoresistance in triple negative breast cancer. iScience 2023; 26:108395. [PMID: 38047085 PMCID: PMC10692664 DOI: 10.1016/j.isci.2023.108395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 10/02/2023] [Accepted: 11/02/2023] [Indexed: 12/05/2023] Open
Abstract
Triple-negative breast cancer (TNBC) is the most elusive subtype of breast cancer that encounters treatment dilemmas owing to the paucity of druggable targets. We found hyperactivation of c-MET and ephrin type-A receptor 2 (EphA2) in patients treated with 5FU driven chemotherapy which correlated with lower disease-free survival. However, silencing of both these genes resulted in a marked decrease in the invasive, migratory, and tumorigenic potential of TNBC cells, indicating that a dual target strategy is actionable. Lupeol is a phytochemical, with potent anticancer efficacy and minimal side effects in preclinical studies. A synergistic strategy with 5FU and Lupeol elicited promising anticancer responses in vitro, in vivo, and in patient-derived ex vivo tumor culture models. This synergistic regimen is effective, even in the presence of HGF, which mechanistically orchestrates the activation of c-MET and EphA2. These data lay the foundation for the clinical validation of this combination therapy for TNBC patients.
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Affiliation(s)
- Debarpan Mitra
- Department of Signal Transduction and Biogenic Amines, Chittaranjan National Cancer Institute, 37, S. P. Mukherjee Road, Kolkata 700026, India
| | - Depanwita Saha
- Department of Signal Transduction and Biogenic Amines, Chittaranjan National Cancer Institute, 37, S. P. Mukherjee Road, Kolkata 700026, India
| | - Gaurav Das
- Department of Signal Transduction and Biogenic Amines, Chittaranjan National Cancer Institute, 37, S. P. Mukherjee Road, Kolkata 700026, India
| | - Rimi Mukherjee
- Department of Signal Transduction and Biogenic Amines, Chittaranjan National Cancer Institute, 37, S. P. Mukherjee Road, Kolkata 700026, India
| | - Samir Banerjee
- Department of Signal Transduction and Biogenic Amines, Chittaranjan National Cancer Institute, 37, S. P. Mukherjee Road, Kolkata 700026, India
| | - Neyaz Alam
- Department of Surgical Oncology, Chittaranjan National Cancer Institute, 37, S. P. Mukherjee Road, Kolkata 700026, India
| | - Saunak Mitra Mustafi
- Department of Pathology, Chittaranjan National Cancer Institute, 37, S. P. Mukherjee Road, Kolkata 700026, India
| | - Partha Nath
- Department of Surgical Oncology, Chittaranjan National Cancer Institute, 37, S. P. Mukherjee Road, Kolkata 700026, India
| | - Anuj Majumder
- Department of Medicine, Harvard Medical School, 65 Lansdowne Street, Suite #317, Cambridge, MA 02139, USA
- Brookline High School, 115 Greenough Street, Brookline, MA 02445, USA
| | - Biswanath Majumder
- Departments of Molecular Profiling, Cancer Biology and Molecular Pathology, Mitra Biotech, Bangalore, India
| | - Nabendu Murmu
- Department of Signal Transduction and Biogenic Amines, Chittaranjan National Cancer Institute, 37, S. P. Mukherjee Road, Kolkata 700026, India
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