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Chang YC, Yu MH, Huang HP, Chen DH, Yang MY, Wang CJ. Mulberry leaf extract inhibits obesity and protects against diethylnitrosamine-induced hepatocellular carcinoma in rats. J Tradit Complement Med 2024; 14:266-275. [PMID: 38707917 PMCID: PMC11068992 DOI: 10.1016/j.jtcme.2024.01.007] [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: 06/09/2023] [Revised: 01/12/2024] [Accepted: 01/16/2024] [Indexed: 05/07/2024] Open
Abstract
Mulberry leaf has been recognized as a traditional Chinese medicinal plant, which was distributed throughout the Asia. The aqueous extract of mulberry leaf extract (MLE) has various biologically active components such as polyphenols and flavonoids. However, the inhibitory effect of MLE in hepatocarcinogenesis is poorly understood. In this study, we determined the role of MLE supplementation in preventing hepatocarcinogenesis in a carcinogen-initiated high-fat diet (HFD)-promoted Sprague-Dawley (SD) rat model. The rats were fed an HFD to induce obesity and spontaneous hepatomas by administering 0.01% diethylnitrosamine (DEN) in their drinking water for 12 weeks (HD group), and also to fed MLE through oral ingestion at daily doses of 0.5%, 1%, or 2%. At the end of the 12-week experimental period, the liver tumors were analyzed to identify markers of oxidative stress and antioxidant enzyme activities, and their serum was analyzed to determine their nutritional status and liver function. Histopathological analysis revealed that MLE supplementation significantly suppressed the severity and incidence of hepatic tumors. Furthermore, compared with the HFD + DEN groups, the expression of protein kinase C (PKC)-α and Rac family small GTPase 1 (Rac1) was lower in the MLE groups. These findings suggest that MLE prevents obesity-enhanced, carcinogen-induced hepatocellular carcinoma development, potentially through the protein kinase C (PKC)α/Rac1 signaling pathway. MLE might be an effective chemoprevention modality for nonalcoholic fatty liver disease (NAFLD)/nonalcoholic steatohepatitis (NASH)-related hepatocarcinogenesis.
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Affiliation(s)
- Yun-Ching Chang
- Department of Health Diet and Industry Management, Chung Shan Medical University, Taichung, 402, Taiwan
- Department of Medical Research, Chung Shan Medical University Hospital, Taichung, 402, Taiwan
| | - Meng-Hsun Yu
- Department of Nutrition, Chung Shan Medical University, Taichung, 402, Taiwan
- Department of Nutrition, Chung Shan Medical University Hospital, Taichung, 402, Taiwan
| | - Hui-Pei Huang
- Department of Biochemistry, School of Medicine, Medical College, Chung Shan Medical University, Taichung, 402, Taiwan
| | - Dong-Hui Chen
- Institute of Medicine, Chung Shan Medical University, Taichung, 402, Taiwan
| | - Mon-Yuan Yang
- Department of Health Diet and Industry Management, Chung Shan Medical University, Taichung, 402, Taiwan
| | - Chau-Jong Wang
- Department of Health Diet and Industry Management, Chung Shan Medical University, Taichung, 402, Taiwan
- Department of Medical Research, Chung Shan Medical University Hospital, Taichung, 402, Taiwan
- Institute of Medicine, Chung Shan Medical University, Taichung, 402, Taiwan
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Singh RK, Kumar S, Kumar S, Shukla A, Kumar N, Patel AK, Yadav LK, Kaushalendra, Antiwal M, Acharya A. Potential implications of protein kinase Cα in pathophysiological conditions and therapeutic interventions. Life Sci 2023; 330:121999. [PMID: 37536614 DOI: 10.1016/j.lfs.2023.121999] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Revised: 07/31/2023] [Accepted: 07/31/2023] [Indexed: 08/05/2023]
Abstract
PKCα is a molecule with many functions that play an important role in cell survival and death to maintain cellular homeostasis. Alteration in the normal functioning of PKCα is responsible for the complicated etiology of many pathologies, including cancer, cardiovascular diseases, kidney complications, neurodegenerative diseases, diabetics, and many others. Several studies have been carried out over the years on this kinase's function, and regulation in normal physiology and pathological conditions. A lot of data with antithetical results have therefore accumulated over time to create a complex framework of physiological implications connected to the PKCα function that needs comprehensive elucidation. In light of this information, we critically analyze the multiple roles played by PKCα in basic cellular processes and their molecular mechanism during various pathological conditions. This review further discusses the current approaches to manipulating PKCα signaling amplitude in the patient's favour and proposed PKCα as a therapeutic target to reverse pathological states.
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Affiliation(s)
- Rishi Kant Singh
- Lab of Hematopoiesis and Leukemia, KSBS, Indian Institute of Technology, Delhi, New Delhi 110016, India; Cancer Immunology Lab, Department of Zoology, Banaras Hindu University, Varanasi 221005, India
| | - Sanjay Kumar
- Cancer Immunology Lab, Department of Zoology, Banaras Hindu University, Varanasi 221005, India
| | - Sandeep Kumar
- Cancer Immunology Lab, Department of Zoology, Banaras Hindu University, Varanasi 221005, India
| | - Alok Shukla
- Cancer Immunology Lab, Department of Zoology, Banaras Hindu University, Varanasi 221005, India
| | - Naveen Kumar
- Cancer Immunology Lab, Department of Zoology, Banaras Hindu University, Varanasi 221005, India
| | - Anand Kumar Patel
- Cancer Immunology Lab, Department of Zoology, Banaras Hindu University, Varanasi 221005, India
| | - Lokesh Kumar Yadav
- Cancer Immunology Lab, Department of Zoology, Banaras Hindu University, Varanasi 221005, India
| | - Kaushalendra
- Department of Zoology, Pachhunga University College Campus, Mizoram University, Aizawl 796001, India
| | - Meera Antiwal
- Institute of Medical Sciences, Banaras Hindu University, Varanasi 221005, India
| | - Arbind Acharya
- Cancer Immunology Lab, Department of Zoology, Banaras Hindu University, Varanasi 221005, India.
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Masih M, Agarwal S, Kaur R, Gautam PK. Role of chemokines in breast cancer. Cytokine 2022; 155:155909. [PMID: 35597171 DOI: 10.1016/j.cyto.2022.155909] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Revised: 05/02/2022] [Accepted: 05/09/2022] [Indexed: 02/06/2023]
Abstract
Chemokines belong to a family of chemoattractant cytokines and are well known to have an essential role in various cancer aetiologies. Multiplesubsets of immune cells are recruited and enrolled into the tumor microenvironment through interactions between chemokines and their specific receptors. These populations and their interactions have a distinct impact on tumor growth, progression, and treatment outcomes. While it is clear that many chemokines and their cognate receptors can be detected in breast and other cancers, the role of each chemokine and receptor has yet to be determined. This review focuses on the main chemokines that play a crucial role in the tumor microenvironment, emphasizing breast cancer. We have also discussed the techniques used to identify the chemokines and their future implication in the early diagnosis of cancer. In-depth knowledge of chemokines and their role in breast cancer progression can provide specific targets for breast cancer biotherapy.
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Affiliation(s)
- Marilyn Masih
- Department of Biochemistry, AIIMS, New Delhi -110029, India.
| | - Sonam Agarwal
- Department of Biochemistry, AIIMS, New Delhi -110029, India.
| | - Rupinder Kaur
- Department of Biochemistry, AIIMS, New Delhi -110029, India.
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Singh RK, Verma PK, Kumar S, Shukla A, Kumar N, Kumar S, Acharya A. Evidence that PKCα inhibition in Dalton's Lymphoma cells augments cell cycle arrest and mitochondrial-dependent apoptosis. Leuk Res 2022; 113:106772. [PMID: 35016128 DOI: 10.1016/j.leukres.2021.106772] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Revised: 12/18/2021] [Accepted: 12/26/2021] [Indexed: 10/19/2022]
Abstract
Protein kinase Cα (PKCα), belonging to ser/thr protein kinase, perform various biological functions. Overexpression of PKCα has been observed in multiple human malignancies including lymphoma. However, the molecular pathogenesis and involvement of PKCα in Non-Hodgkin lymphoma (NHL) are not clearly understood. Hence, deciphering the role of PKCα in NHL management may provide a better therapeutic option. In the present study, we used selective pharmacological inhibitors Gö6976 and Ro320432 that potentially inhibit PKCα-mediated signaling in DL cells, resulting in the inhibition of cell growth and mitochondrial-dependent apoptosis. PKCα inhibition by these inhibitors also displays cell cycle arrest at the G1 phase and causes growth retardation of DL cells. Our results extended the mechanism of PKCα in NHL, and provided potential implications for its therapy.
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Affiliation(s)
- Rishi Kant Singh
- Tumor Immunology Lab, Department of Zoology, Institute of Science, Banaras Hindu University, Varanasi, Uttar Pradesh, India
| | - Praveen Kumar Verma
- Tumor Immunology Lab, Department of Zoology, Institute of Science, Banaras Hindu University, Varanasi, Uttar Pradesh, India
| | - Sandeep Kumar
- Tumor Immunology Lab, Department of Zoology, Institute of Science, Banaras Hindu University, Varanasi, Uttar Pradesh, India
| | - Alok Shukla
- Tumor Immunology Lab, Department of Zoology, Institute of Science, Banaras Hindu University, Varanasi, Uttar Pradesh, India
| | - Naveen Kumar
- Tumor Immunology Lab, Department of Zoology, Institute of Science, Banaras Hindu University, Varanasi, Uttar Pradesh, India
| | - Sanjay Kumar
- Tumor Immunology Lab, Department of Zoology, Institute of Science, Banaras Hindu University, Varanasi, Uttar Pradesh, India
| | - Arbind Acharya
- Tumor Immunology Lab, Department of Zoology, Institute of Science, Banaras Hindu University, Varanasi, Uttar Pradesh, India.
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Protein kinases as targets for developing anticancer agents from marine organisms. Biochim Biophys Acta Gen Subj 2020; 1865:129759. [PMID: 33038451 DOI: 10.1016/j.bbagen.2020.129759] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Revised: 09/03/2020] [Accepted: 10/03/2020] [Indexed: 01/11/2023]
Abstract
Protein kinases play a fundamental role in the intracellular transduction because of their ability to phosphorylate plethora of proteins. Over the past three decades, numerous protein kinase inhibitors have been identified and are being used clinically successfully. The biodiversity of marine organisms provides a rich source for the discovery and development of novel anticancer agents in the treatment of human malignancies and a lot of bioactive ingredients from marine organisms display anticancer effects by affecting the protein kinases-mediated pathways. In the present mini-review, anticancer compounds from marine source were reviewed and discussed in context of their targeted pathways associated with protein kinases and the progress of these compounds as anticancer agents in recent five years were emphasized. The molecular entities and their modes of actions were presented. We focused on protein kinases-mediated signaling pathways including PI3K/Akt/mTOR, p38 MAPK, and EGFR. The marine compounds targeting special pathways of protein kinases were highlighted. We have also discussed the existing challenges and prospects related to design and development of novel protein kinase inhibitors from marine sources.
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