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Huang P, Lin Z, Zhang Y, Gao Y, Tan S, Wang S, Cao X, Shi H, Sun C, Bai J, Ma X. Genome-Wide Identification and Expression Analysis of ADK Gene Family Members in Cotton under Abiotic Stress. Int J Mol Sci 2024; 25:7821. [PMID: 39063069 PMCID: PMC11277214 DOI: 10.3390/ijms25147821] [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: 06/04/2024] [Revised: 07/11/2024] [Accepted: 07/12/2024] [Indexed: 07/28/2024] Open
Abstract
Adenosine kinase (ADK) is a key enzyme widely distributed in plants, playing an important role in maintaining cellular energy homeostasis and regulating plant growth, development, and responses to environmental stresses. However, research on ADK genes in cotton (Gossypium hirsutum), an economically significant crop, has been limited. This study identified 92 ADK genes from four cotton species (G. arboreum, G. raimondii, G. hirsutum, and G. barbadense) using HMMER and Local BLASTP methods and classified them into six groups. Chromosomal localization revealed a random distribution of ADK genes in G. hirsutum, with 13 genes located on the At subgenome and 14 genes on the Dt subgenome. Gene structure analysis showed consistency in exon-intron organization within subgroups, while conserved motif analysis identified subgroup-specific motifs, indicating functional diversity. Synteny and collinearity mapping analysis revealed that the primary expansion mechanisms of the ADK gene family in cotton are polyploidy and segmental duplication. Cis-regulatory elements in GhADK promoters were classified into light response, hormone response, developmental regulation, and stress response. We also analyzed the expression patterns of GhADK genes under a low temperature (4 °C) and drought conditions. Most GhADK genes responded to cold stress with different expression patterns, indicating their roles in rapid response and long-term cold adaptation. Under drought stress, expression patterns varied, with some genes showing sustained high expression levels. The qRT-PCR validation of transcriptomic data confirmed the stress-induced expression patterns of selected GhADK genes. Functional analysis through the VIGS silencing of GhADK25 demonstrated its importance in cold and drought stress responses, with silencing resulting in poor growth under stress, highlighting its significance in stress tolerance. This study provides a basis for further understanding the evolutionary relationships and functions of the cotton ADK gene family.
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Affiliation(s)
- Peijun Huang
- College of Agronomy, Gansu Agricultural University, Lanzhou 730070, China; (P.H.); (C.S.)
- State Key Laboratory of Cotton Bio-Breeding and Integrated Utilization, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang 455000, China; (Z.L.); (Y.Z.); (Y.G.); (S.T.); (S.W.); (H.S.)
| | - Ziwei Lin
- State Key Laboratory of Cotton Bio-Breeding and Integrated Utilization, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang 455000, China; (Z.L.); (Y.Z.); (Y.G.); (S.T.); (S.W.); (H.S.)
| | - Yuzhi Zhang
- State Key Laboratory of Cotton Bio-Breeding and Integrated Utilization, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang 455000, China; (Z.L.); (Y.Z.); (Y.G.); (S.T.); (S.W.); (H.S.)
| | - Yu Gao
- State Key Laboratory of Cotton Bio-Breeding and Integrated Utilization, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang 455000, China; (Z.L.); (Y.Z.); (Y.G.); (S.T.); (S.W.); (H.S.)
| | - Songjuan Tan
- State Key Laboratory of Cotton Bio-Breeding and Integrated Utilization, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang 455000, China; (Z.L.); (Y.Z.); (Y.G.); (S.T.); (S.W.); (H.S.)
| | - Shuai Wang
- State Key Laboratory of Cotton Bio-Breeding and Integrated Utilization, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang 455000, China; (Z.L.); (Y.Z.); (Y.G.); (S.T.); (S.W.); (H.S.)
| | - Xiaoyu Cao
- State Key Laboratory of Cotton Bio-Breeding and Integrated Utilization, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang 455000, China; (Z.L.); (Y.Z.); (Y.G.); (S.T.); (S.W.); (H.S.)
| | - Hongyan Shi
- State Key Laboratory of Cotton Bio-Breeding and Integrated Utilization, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang 455000, China; (Z.L.); (Y.Z.); (Y.G.); (S.T.); (S.W.); (H.S.)
| | - Chao Sun
- College of Agronomy, Gansu Agricultural University, Lanzhou 730070, China; (P.H.); (C.S.)
| | - Jiangping Bai
- College of Agronomy, Gansu Agricultural University, Lanzhou 730070, China; (P.H.); (C.S.)
| | - Xiongfeng Ma
- College of Agronomy, Gansu Agricultural University, Lanzhou 730070, China; (P.H.); (C.S.)
- State Key Laboratory of Cotton Bio-Breeding and Integrated Utilization, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang 455000, China; (Z.L.); (Y.Z.); (Y.G.); (S.T.); (S.W.); (H.S.)
- Western Agricultural Research Center, Chinese Academy of Agricultural Sciences, Changji 831100, China
- College of Mechanical and Electrical Engineering, Shihezi University, Shihezi 518000, China
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AK4 Promotes the Progression of HER2-Positive Breast Cancer by Facilitating Cell Proliferation and Invasion. DISEASE MARKERS 2019; 2019:8186091. [PMID: 31827645 PMCID: PMC6886328 DOI: 10.1155/2019/8186091] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/11/2019] [Revised: 07/23/2019] [Accepted: 10/05/2019] [Indexed: 12/31/2022]
Abstract
Breast cancer (BC) is a type of malignant tumor originating from the epithelial tissue of the mammary gland, and about 20% of breast cancers are human epidermal growth factor receptor 2 positive (HER2+), which is a subtype with more aggression. Recently, HER2-positive breast cancer is often accompanied by poor prognosis of patients, and targeted therapy showed a promising prospect. To combat this disease, novel therapeutic targets are still needed. Adenylate kinase 4 (AK4) is a member of the adenylate kinase family and is expressed in the mitochondrial matrix. AK4 is involved in multiple cellular functions such as energy metabolism homeostasis. Interestingly, AK4 was observed highly expressed in several tumor tissues, and the involvement of AK4 in cancer development was generally revealed. However, the possible role of AK4 on the growth and development of breast cancer is still unclear. Here, we investigated the possible functions of AK4 on the progression of HER2-positive breast cancer. We found the high expression of AK4 in HER2-positive breast cancer tissues from patients who received surgical treatment. Additionally, AK4 expression levels were obviously correlated with clinical-pathological features, including pTNM stage (P = 0.017) and lymph node metastasis (P = 0.046). We mechanically confirmed that AK4 depletion showed the obvious impairment of cell proliferation and invasion in MCF7 and MDA-MB-231 cells. AK4 also facilitates tumor growth and metastasis of HER2-positive breast cancer in vivo. In conclusion, we identified and mechanically confirmed that AK4 is a novel therapeutic target of HER2-positive breast cancer.
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