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Li W, Gan C, Yu S, Xu J, Tang L, Cheng H. Wnt3a/GSK3β/β-catenin Signalling Modulates Doxorubicin-associated Memory Deficits in Breast Cancer. Mol Neurobiol 2024; 61:5441-5458. [PMID: 38198045 DOI: 10.1007/s12035-023-03910-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Accepted: 12/25/2023] [Indexed: 01/11/2024]
Abstract
BACKGROUND Chemobrain is widespread in breast cancer patients receiving chemotherapy. However, the exact mechanism, especially the associated signalling pathway, is not currently clear. This study was to evaluate the behavioural changes in breast cancer mice after chemotherapy and to further explore the role of Wnt3a/glycogen synthase kinase (GSK3β)/β-catenin signalling in chemobrain. METHODS MMTV-PyMT(+) breast cancer mice were injected intraperitoneally with doxorubicin (4 mg/kg) once a week for three weeks to establish a chemobrain model. The Morris water maze (MWM) and novel object recognition (NOR) tests were performed to assess the learning and memory ability. Electron microscopy was used to observe the structural changes in the hippocampal CA1 region. The brain tissue of breast cancer mice after chemotherapy was taken out for mRNA-seq detection. Then, the expression levels and phosphorylation of key proteins in the Wnt3a/GSK3 β/β-catenin signalling pathway were evaluated through Western blotting (WB) and immunofluorescence. RESULTS Doxorubicin-induced spatial and short-term memory impairment was observed in breast cancer mice, and obvious neuronal damage could be seen in the hippocampal CA1 region. Immunofluorescence staining for GSK3β was increased. Wnt signalling pathway is highly enriched from mRNA-seq analysis, with GSK3β genes at important nodes. The relative protein levels of p-PI3K, p-AKT, p-GSK3 β, Wnt3a and TCF-1 were decreased significantly, while the p-β-catenin level was increased. After injection of the GSK3β inhibitor sb216763 (1 ng/0.5 µl/side), hippocampal neuronal injury was alleviated to some extent, and the changes in the expression of proteins upstream and downstream of this signalling pathway were reversed. CONCLUSION Wnt3a/GSK3 β/β-catenin signalling is likely involved in doxorubicin-induced memory impairment. This result provides basic evidence for the further study of chemobrain in breast cancer.
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Affiliation(s)
- Wen Li
- Department of Oncology, The Second Hospital of Anhui Medical University, Hefei, Anhui, 230601, China
- Department of Oncology, Shenzhen Hospital of Southern Medical University, Shenzhen, Guangdong, 518000, China
| | - Chen Gan
- Department of Oncology, The Second Hospital of Anhui Medical University, Hefei, Anhui, 230601, China
- Department of Oncology, Shenzhen Hospital of Southern Medical University, Shenzhen, Guangdong, 518000, China
| | - Sheng Yu
- Department of Oncology, The Second Hospital of Anhui Medical University, Hefei, Anhui, 230601, China
- Department of Oncology, Shenzhen Hospital of Southern Medical University, Shenzhen, Guangdong, 518000, China
| | - Jian Xu
- Department of Oncology, The Second Hospital of Anhui Medical University, Hefei, Anhui, 230601, China
- Department of Oncology, Shenzhen Hospital of Southern Medical University, Shenzhen, Guangdong, 518000, China
| | - LingXue Tang
- Department of Oncology, The Second Hospital of Anhui Medical University, Hefei, Anhui, 230601, China
- Department of Oncology, Shenzhen Hospital of Southern Medical University, Shenzhen, Guangdong, 518000, China
| | - Huaidong Cheng
- The Third School of Clinical Medicine, Southern Medical University, Guangzhou, 510500, China.
- Department of Oncology, Shenzhen Hospital of Southern Medical University, Shenzhen, Guangdong, 518000, China.
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Krishnappa M, Abraham S, Furtado SC, Krishnamurthy S, Rifaya A, Asiri YI, Chidambaram K, Pavadai P. An Integrated Computational and Experimental Approach to Formulate Tamanu Oil Bigels as Anti-Scarring Agent. Pharmaceuticals (Basel) 2024; 17:102. [PMID: 38256935 PMCID: PMC10818744 DOI: 10.3390/ph17010102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Revised: 12/25/2023] [Accepted: 01/09/2024] [Indexed: 01/24/2024] Open
Abstract
Tamanu oil has traditionally been used to treat various skin problems. The oil has wound-healing and skin-regenerating capabilities and encourages the growth of new skin cells, all of which are helpful for fading scars and hyperpigmentation, as well as promoting an all-around glow. The strong nutty odor and high viscosity are the major disadvantages associated with its application. The aim of this study was to create bigels using tamanu oil for its anti-scarring properties and predict the possible mechanism of action through the help of molecular docking studies. In silico studies were performed to analyze the binding affinity of the protein with the drug, and the anti-scarring activity was established using a full-thickness excision wound model. In silico studies revealed that the components inophyllum C, 4-norlanosta-17(20),24-diene-11,16-diol-21-oic acid, 3-oxo-16,21-lactone, calanolide A, and calophyllolide had docking scores of -11.3 kcal/mol, -11.1 kcal/mol, -9.8 kcal/mol, and -8.6 kcal/mol, respectively, with the cytokine TGF-β1 receptor. Bigels were prepared with tamanu oil ranging from 5 to 20% along with micronized xanthan gum and evaluated for their pH, viscosity, and spreadability. An acute dermal irritation study in rabbits showed no irritation, erythema, eschar, or edema. In vivo excisional wound-healing studies performed on Wistar rats and subsequent histopathological studies showed that bigels had better healing properties when compared to the commercial formulation (MurivennaTM oil). This study substantiates the wound-healing and scar reduction potential of tamanu oil bigels.
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Affiliation(s)
- Megha Krishnappa
- Department of Pharmaceutics, Faculty of Pharmacy, M.S. Ramaiah University of Applied Sciences, Gnanagangothri Campus, Bengaluru 56054, Karnataka, India; (M.K.); (S.C.F.); (S.K.)
| | - Sindhu Abraham
- Department of Pharmaceutics, Faculty of Pharmacy, M.S. Ramaiah University of Applied Sciences, Gnanagangothri Campus, Bengaluru 56054, Karnataka, India; (M.K.); (S.C.F.); (S.K.)
| | - Sharon Caroline Furtado
- Department of Pharmaceutics, Faculty of Pharmacy, M.S. Ramaiah University of Applied Sciences, Gnanagangothri Campus, Bengaluru 56054, Karnataka, India; (M.K.); (S.C.F.); (S.K.)
| | - Shwetha Krishnamurthy
- Department of Pharmaceutics, Faculty of Pharmacy, M.S. Ramaiah University of Applied Sciences, Gnanagangothri Campus, Bengaluru 56054, Karnataka, India; (M.K.); (S.C.F.); (S.K.)
| | - Aynul Rifaya
- Department of Chemical Engineering, Erode Sengunther Engineering College, Erode 638057, Tamil Nadu, India;
| | - Yahya I. Asiri
- Department of Pharmacology, College of Pharmacy, King Khalid University, Abha 61421, Asir Province, Saudi Arabia;
| | - Kumarappan Chidambaram
- Department of Pharmacology, College of Pharmacy, King Khalid University, Abha 61421, Asir Province, Saudi Arabia;
| | - Parasuraman Pavadai
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, M.S. Ramaiah University of Applied Sciences, Gnanagangothri Campus, Bengaluru 560054, Karnataka, India
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