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Wang Z, Zhang L, Li B, Song J, Yu M, Zhang J, Chen C, Zhan J, Zhang H. Kindlin-2 in myoepithelium controls luminal progenitor commitment to alveoli in mouse mammary gland. Cell Death Dis 2023; 14:675. [PMID: 37833248 PMCID: PMC10576046 DOI: 10.1038/s41419-023-06184-2] [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: 07/01/2023] [Revised: 09/11/2023] [Accepted: 09/26/2023] [Indexed: 10/15/2023]
Abstract
Myoepithelium plays an important role in mammary gland development, but less is known about the molecular mechanism underlying how myoepithelium controls acinus differentiation during gestation. Herein, we found that loss of Kindlin-2 in myoepithelial cells impaired mammary morphogenesis, alveologenesis, and lactation. Using five genetically modified mouse lines combined with single-cell RNA sequencing, we found a Kindlin-2-Stat3-Dll1 signaling cascade in myoepithelial cells that inactivates Notch signaling in luminal cells and consequently drives luminal progenitor commitment to alveolar cells identity. Single-cell profiling revealed that Kindlin-2 loss significantly reduces the proportion of matured alveolar cells. Mechanistically, Kindlin-2 depletion in myoepithelial cells promotes Stat3 activation and upregulates Dll1, which activates the Notch pathway in luminal cells and inhibits luminal progenitor differentiation and maturation during gestation. Inhibition of Notch1 with tangeretin allowed luminal progenitors to regain commitment ability in the pregnant mice with Kindlin-2 depletion in myoepithelium. Taken together, we demonstrated that Kindlin-2 is essential to myoepithelium-controlled luminal progenitors to alveoli transition during gestation.
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Affiliation(s)
- Zhenbin Wang
- Program for Cancer and Cell Biology, Department of Human Anatomy, Histology and Embryology, School of Basic Medical Sciences; Peking University International Cancer Institute; MOE Key Laboratory of Carcinogenesis and Translational Research and State Key Laboratory of Natural and Biomimetic Drugs, Peking University Health Science Center, 100191, Beijing, China
| | - Lei Zhang
- Program for Cancer and Cell Biology, Department of Human Anatomy, Histology and Embryology, School of Basic Medical Sciences; Peking University International Cancer Institute; MOE Key Laboratory of Carcinogenesis and Translational Research and State Key Laboratory of Natural and Biomimetic Drugs, Peking University Health Science Center, 100191, Beijing, China
| | - Bing Li
- Program for Cancer and Cell Biology, Department of Human Anatomy, Histology and Embryology, School of Basic Medical Sciences; Peking University International Cancer Institute; MOE Key Laboratory of Carcinogenesis and Translational Research and State Key Laboratory of Natural and Biomimetic Drugs, Peking University Health Science Center, 100191, Beijing, China
- Department of Histology and Embryology, Hebei University of Chinese Medicine, Shijiazhuang, Hebei, 050200, China
| | - Jiagui Song
- Program for Cancer and Cell Biology, Department of Human Anatomy, Histology and Embryology, School of Basic Medical Sciences; Peking University International Cancer Institute; MOE Key Laboratory of Carcinogenesis and Translational Research and State Key Laboratory of Natural and Biomimetic Drugs, Peking University Health Science Center, 100191, Beijing, China
| | - Miao Yu
- Program for Cancer and Cell Biology, Department of Human Anatomy, Histology and Embryology, School of Basic Medical Sciences; Peking University International Cancer Institute; MOE Key Laboratory of Carcinogenesis and Translational Research and State Key Laboratory of Natural and Biomimetic Drugs, Peking University Health Science Center, 100191, Beijing, China
| | - Jing Zhang
- Program for Cancer and Cell Biology, Department of Human Anatomy, Histology and Embryology, School of Basic Medical Sciences; Peking University International Cancer Institute; MOE Key Laboratory of Carcinogenesis and Translational Research and State Key Laboratory of Natural and Biomimetic Drugs, Peking University Health Science Center, 100191, Beijing, China
| | - Ceshi Chen
- Academy of Biomedical Engineering, Kunming Medical University, Kunming, 650500, China.
- Key Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences and Yunnan Province, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan, 650223, China.
| | - Jun Zhan
- Program for Cancer and Cell Biology, Department of Human Anatomy, Histology and Embryology, School of Basic Medical Sciences; Peking University International Cancer Institute; MOE Key Laboratory of Carcinogenesis and Translational Research and State Key Laboratory of Natural and Biomimetic Drugs, Peking University Health Science Center, 100191, Beijing, China.
| | - Hongquan Zhang
- Program for Cancer and Cell Biology, Department of Human Anatomy, Histology and Embryology, School of Basic Medical Sciences; Peking University International Cancer Institute; MOE Key Laboratory of Carcinogenesis and Translational Research and State Key Laboratory of Natural and Biomimetic Drugs, Peking University Health Science Center, 100191, Beijing, China.
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Angelini A, Trial J, Saltzman AB, Malovannaya A, Cieslik KA. A defective mechanosensing pathway affects fibroblast-to-myofibroblast transition in the old male mouse heart. iScience 2023; 26:107283. [PMID: 37520701 PMCID: PMC10372839 DOI: 10.1016/j.isci.2023.107283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 05/12/2023] [Accepted: 06/30/2023] [Indexed: 08/01/2023] Open
Abstract
The cardiac fibroblast interacts with an extracellular matrix (ECM), enabling myofibroblast maturation via a process called mechanosensing. Although in the aging male heart, ECM is stiffer than in the young mouse, myofibroblast development is impaired, as demonstrated in 2-D and 3-D experiments. In old male cardiac fibroblasts, we found a decrease in actin polymerization, α-smooth muscle actin (α-SMA), and Kindlin-2 expressions, the latter an effector of the mechanosensing. When Kindlin-2 levels were manipulated via siRNA interference, young fibroblasts developed an old-like fibroblast phenotype, whereas Kindlin-2 overexpression in old fibroblasts reversed the defective phenotype. Finally, inhibition of overactivated extracellular regulated kinases 1 and 2 (ERK1/2) in the old male fibroblasts rescued actin polymerization and α-SMA expression. Pathological ERK1/2 overactivation was also attenuated by Kindlin-2 overexpression. In contrast, old female cardiac fibroblasts retained an operant mechanosensing pathway. In conclusion, we identified defective components of the Kindlin/ERK/actin/α-SMA mechanosensing axis in aged male fibroblasts.
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Affiliation(s)
- Aude Angelini
- Section of Cardiovascular Research, Department of Medicine, Baylor College of Medicine, Houston, TX, USA
| | - JoAnn Trial
- Section of Cardiovascular Research, Department of Medicine, Baylor College of Medicine, Houston, TX, USA
| | - Alexander B. Saltzman
- Verna and Marrs McLean Department of Biochemistry and Molecular Biology, Baylor College of Medicine, Houston, TX, USA
- Mass Spectrometry Proteomics Core, Baylor College of Medicine, Houston, TX, USA
| | - Anna Malovannaya
- Verna and Marrs McLean Department of Biochemistry and Molecular Biology, Baylor College of Medicine, Houston, TX, USA
- Mass Spectrometry Proteomics Core, Baylor College of Medicine, Houston, TX, USA
| | - Katarzyna A. Cieslik
- Section of Cardiovascular Research, Department of Medicine, Baylor College of Medicine, Houston, TX, USA
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张 京, 宋 佳, 王 振, 龚 玉, 王 天, 周 津, 战 军, 张 宏. [Kindlin-2 regulates endometrium development via mTOR and Hippo signaling pathways in mice]. BEIJING DA XUE XUE BAO. YI XUE BAN = JOURNAL OF PEKING UNIVERSITY. HEALTH SCIENCES 2022; 54:846-852. [PMID: 36241227 PMCID: PMC9568384 DOI: 10.19723/j.issn.1671-167x.2022.05.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Indexed: 06/16/2023]
Abstract
OBJECTIVE To investigate the effects and mechanisms of Kindlin-2 on uterus development and reproductive capacity in female mice. METHODS Cdh16-Cre tool mice and Kindlin-2flox/flox mice were used to construct the mouse model of uterus specific knockout of Kindlin-2, and the effects of Kindlin-2 deletion on uterine development and reproduction capacity of female mice were observed. High expression and knockdown of Kindlin-2 in endometrial cancer cell lines HEC-1 and Ish were used to detect the regulation of mammalian target of rapamycin (mTOR) signaling pathway. In addition, uterine proteins of the female mice with specific knockout of Kindlin-2 and female mice in the control group were extracted to detect the protein levels of key molecules of mTOR signaling pathway and Hippo signaling pathway. RESULTS The mouse model of uterine specific knockout of Kindlin-2 was successfully constructed. The knockout efficiency of Kindlin-2 in mouse uterus was identified and verified by mouse tail polymerase chain reaction (PCR), Western blot protein identification, immunohistochemical staining (IHC) and other methods. Compared with the control group, the female mice with uterus specific deletion of Kindlin-2 lost weight, seriously impaired reproductive ability, and the number of newborn mice decreased, but the proportion of the female mice and male mice in the newborn mice did not change. Hematoxylin eosin staining (HE) experiment showed that the endometrium of Kindlin-2 knockout group was incomplete and the thickness of uterine wall became thinner. In terms of mechanism, the deletion of Kindlin-2 in endo-metrial cancer cell lines HEC-1 and Ish could downregulate the protein levels of mTOR, phosphorylated mTOR, adenosine monophosphate-activated protein kinase (AMPK), phosphorylated AMPK and phosphorylated ribosomal protein S6 (S6), and the mTOR signal pathway was inhibited. It was found that the specific deletion of Kindlin-2 could upregulate the protein levels of Mps one binding 1 (MOB1) and phosphorylated Yes-associated protein (YAP) in the uterus of the female mice, and the Hippo signal pathway was activated. CONCLUSION Kindlin-2 inhibits the development of uterus by inhibiting mTOR signal pathway and activating Hippo signal pathway, thereby inhibiting the fertility of female mice.
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Affiliation(s)
- 京 张
- 北京大学基础医学院人体解剖与组织胚胎学系,北京 100191Department of Human Anatomy, Histology and Embryology, Peking University School of Basic Medical Sciences, Beijing 100191, China
| | - 佳桂 宋
- 北京大学基础医学院人体解剖与组织胚胎学系,北京 100191Department of Human Anatomy, Histology and Embryology, Peking University School of Basic Medical Sciences, Beijing 100191, China
- 北京大学第三医院医学创新研究院基础医学研究中心,北京 100191Center of Basic Medical Research, Institute of Medical Innovation and Research, Cancer Center, Peking University Third Hospital, Beijing 100191, China
| | - 振斌 王
- 北京大学基础医学院人体解剖与组织胚胎学系,北京 100191Department of Human Anatomy, Histology and Embryology, Peking University School of Basic Medical Sciences, Beijing 100191, China
| | - 玉清 龚
- 北京大学基础医学院人体解剖与组织胚胎学系,北京 100191Department of Human Anatomy, Histology and Embryology, Peking University School of Basic Medical Sciences, Beijing 100191, China
| | - 天卓 王
- 北京大学基础医学院人体解剖与组织胚胎学系,北京 100191Department of Human Anatomy, Histology and Embryology, Peking University School of Basic Medical Sciences, Beijing 100191, China
| | - 津羽 周
- 北京大学基础医学院人体解剖与组织胚胎学系,北京 100191Department of Human Anatomy, Histology and Embryology, Peking University School of Basic Medical Sciences, Beijing 100191, China
| | - 军 战
- 北京大学基础医学院人体解剖与组织胚胎学系,北京 100191Department of Human Anatomy, Histology and Embryology, Peking University School of Basic Medical Sciences, Beijing 100191, China
| | - 宏权 张
- 北京大学基础医学院人体解剖与组织胚胎学系,北京 100191Department of Human Anatomy, Histology and Embryology, Peking University School of Basic Medical Sciences, Beijing 100191, China
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Lai Y, Zheng W, Qu M, Xiao CC, Chen S, Yao Q, Gong W, Tao C, Yan Q, Zhang P, Wu X, Xiao G. Kindlin-2 loss in condylar chondrocytes causes spontaneous osteoarthritic lesions in the temporomandibular joint in mice. Int J Oral Sci 2022; 14:33. [PMID: 35788130 PMCID: PMC9253313 DOI: 10.1038/s41368-022-00185-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Revised: 05/25/2022] [Accepted: 05/28/2022] [Indexed: 11/16/2022] Open
Abstract
The progressive destruction of condylar cartilage is a hallmark of the temporomandibular joint (TMJ) osteoarthritis (OA); however, its mechanism is incompletely understood. Here, we show that Kindlin-2, a key focal adhesion protein, is strongly detected in cells of mandibular condylar cartilage in mice. We find that genetic ablation of Kindlin-2 in aggrecan-expressing condylar chondrocytes induces multiple spontaneous osteoarthritic lesions, including progressive cartilage loss and deformation, surface fissures, and ectopic cartilage and bone formation in TMJ. Kindlin-2 loss significantly downregulates the expression of aggrecan, Col2a1 and Proteoglycan 4 (Prg4), all anabolic extracellular matrix proteins, and promotes catabolic metabolism in TMJ cartilage by inducing expression of Runx2 and Mmp13 in condylar chondrocytes. Kindlin-2 loss decreases TMJ chondrocyte proliferation in condylar cartilages. Furthermore, Kindlin-2 loss promotes the release of cytochrome c as well as caspase 3 activation, and accelerates chondrocyte apoptosis in vitro and TMJ. Collectively, these findings reveal a crucial role of Kindlin-2 in condylar chondrocytes to maintain TMJ homeostasis.
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Affiliation(s)
- Yumei Lai
- Department of Orthopedic Surgery, Rush University Medical Center, Chicago, IL, USA
| | - Wei Zheng
- Department of Orthopaedic Center, Xinjiang Production and Construction Corps Hospital, Urumqi, China
| | - Minghao Qu
- Department of Biochemistry, School of Medicine, Southern University of Science and Technology, Guangdong Provincial Key Laboratory of Cell Microenvironment and Disease Research, Shenzhen Key Laboratory of Cell Microenvironment, Shenzhen, China
| | - Christopher C Xiao
- Department of Orthopedic Surgery, Rush University Medical Center, Chicago, IL, USA
| | - Sheng Chen
- Department of Biochemistry, School of Medicine, Southern University of Science and Technology, Guangdong Provincial Key Laboratory of Cell Microenvironment and Disease Research, Shenzhen Key Laboratory of Cell Microenvironment, Shenzhen, China
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Qing Yao
- Department of Biochemistry, School of Medicine, Southern University of Science and Technology, Guangdong Provincial Key Laboratory of Cell Microenvironment and Disease Research, Shenzhen Key Laboratory of Cell Microenvironment, Shenzhen, China
| | - Weiyuan Gong
- Department of Biochemistry, School of Medicine, Southern University of Science and Technology, Guangdong Provincial Key Laboratory of Cell Microenvironment and Disease Research, Shenzhen Key Laboratory of Cell Microenvironment, Shenzhen, China
| | - Chu Tao
- Department of Biochemistry, School of Medicine, Southern University of Science and Technology, Guangdong Provincial Key Laboratory of Cell Microenvironment and Disease Research, Shenzhen Key Laboratory of Cell Microenvironment, Shenzhen, China
| | - Qinnan Yan
- Department of Biochemistry, School of Medicine, Southern University of Science and Technology, Guangdong Provincial Key Laboratory of Cell Microenvironment and Disease Research, Shenzhen Key Laboratory of Cell Microenvironment, Shenzhen, China
| | - Peijun Zhang
- Department of Biochemistry, School of Medicine, Southern University of Science and Technology, Guangdong Provincial Key Laboratory of Cell Microenvironment and Disease Research, Shenzhen Key Laboratory of Cell Microenvironment, Shenzhen, China
| | - Xiaohao Wu
- Department of Biochemistry, School of Medicine, Southern University of Science and Technology, Guangdong Provincial Key Laboratory of Cell Microenvironment and Disease Research, Shenzhen Key Laboratory of Cell Microenvironment, Shenzhen, China.
| | - Guozhi Xiao
- Department of Biochemistry, School of Medicine, Southern University of Science and Technology, Guangdong Provincial Key Laboratory of Cell Microenvironment and Disease Research, Shenzhen Key Laboratory of Cell Microenvironment, Shenzhen, China.
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5
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Huang S, Liao J, Luo X, Liu F, Shi G, Wen W. Kindlin-2 promoted the progression of keloids through the Smad pathway and Fas/FasL pathway. Exp Cell Res 2021; 408:112813. [PMID: 34492266 DOI: 10.1016/j.yexcr.2021.112813] [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: 02/21/2021] [Revised: 09/02/2021] [Accepted: 09/03/2021] [Indexed: 10/20/2022]
Abstract
Keloids are benign skin tumors characterized by aggressive growth. To date, there is no exact treatment because little is known about its pathological mechanism. Therefore, it is important to investigate the mechanism of its occurrence and development to identify therapeutic targets. In this study, the expression of Kindlin-2 was higher in keloid fibroblasts (KFs) than in normal skin fibroblasts (NFs). In vitro experiments showed that knocking down Kindlin-2 in KFs could promote cell apoptosis and inhibit cell proliferation, cell migration and invasion, and contractile capability. Western blot results showed that the phosphorylation of Smad3 in KFs was inhibited after knocking down Kindlin-2, inhibiting the activation of the Smad pathway. Moreover, knocking down Kindlin-2 increased the expression of Fas and FasL in KFs, which demonstrated that knocking down Kindlin-2 promoted the activation of the exogenous apoptotic pathway of KFs and then facilitated apoptosis. The above results revealed that knocking down Kindlin-2 in KFs can inhibit the activation of the Smad pathway and promote the activation of the Fas/FasL exogenous apoptosis pathway, thereby altering the cytological function of KFs. Therefore, Kindlin-2 might play an important role in the occurrence and development of keloids and could become a new target to treat keloids.
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Affiliation(s)
- Shaobin Huang
- Department of Cosmetic and Plastic Surgery, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Jing Liao
- Department of Otorhinolaryngology Head and Neck Surgery, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Xiaohua Luo
- Department of Cosmetic and Plastic Surgery, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Fang Liu
- Department of Cosmetic and Plastic Surgery, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Ge Shi
- Department of Cosmetic and Plastic Surgery, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, China.
| | - Weiping Wen
- Department of Otorhinolaryngology Head and Neck Surgery, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, China.
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Chi X, Luo W, Song J, Li B, Su T, Yu M, Wang T, Wang Z, Liu C, Li Z, He H, Zhan J, Zhang H. Kindlin-2 in Sertoli cells is essential for testis development and male fertility in mice. Cell Death Dis 2021; 12:604. [PMID: 34117213 PMCID: PMC8196014 DOI: 10.1038/s41419-021-03885-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 05/12/2021] [Accepted: 05/13/2021] [Indexed: 12/16/2022]
Abstract
Kindlin-2 is known to play important roles in the development of mesoderm-derived tissues including myocardium, smooth muscle, cartilage and blood vessels. However, nothing is known for the role of Kindlin-2 in mesoderm-derived reproductive organs. Here, we report that loss of Kindlin-2 in Sertoli cells caused severe testis hypoplasia, abnormal germ cell development and complete infertility in male mice. Functionally, loss of Kindlin-2 inhibits proliferation, increases apoptosis, impairs phagocytosis in Sertoli cells and destroyed the integration of blood-testis barrier structure in testes. Mechanistically, Kindlin-2 interacts with LATS1 and YAP, the key components of Hippo pathway. Kindlin-2 impedes LATS1 interaction with YAP, and depletion of Kindlin-2 enhances LATS1 interaction with YAP, increases YAP phosphorylation and decreases its nuclear translocation. For clinical relevance, lower Kindlin-2 expression and decreased nucleus localization of YAP was found in SCOS patients. Collectively, we demonstrated that Kindlin-2 in Sertoli cells is essential for sperm development and male reproduction.
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Affiliation(s)
- Xiaochun Chi
- Department of Human Anatomy, Histology and Embryology, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education) and State Key Laboratory of Natural and Biomimetic Drugs, Peking University Health Science Center, Beijing, 100191, China
| | - Weiwei Luo
- Department of Human Anatomy, Histology and Embryology, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education) and State Key Laboratory of Natural and Biomimetic Drugs, Peking University Health Science Center, Beijing, 100191, China
| | - Jiagui Song
- Department of Human Anatomy, Histology and Embryology, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education) and State Key Laboratory of Natural and Biomimetic Drugs, Peking University Health Science Center, Beijing, 100191, China
| | - Bing Li
- Department of Human Anatomy, Histology and Embryology, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education) and State Key Laboratory of Natural and Biomimetic Drugs, Peking University Health Science Center, Beijing, 100191, China
| | - Tiantian Su
- Department of Human Anatomy, Histology and Embryology, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education) and State Key Laboratory of Natural and Biomimetic Drugs, Peking University Health Science Center, Beijing, 100191, China
| | - Miao Yu
- Department of Human Anatomy, Histology and Embryology, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education) and State Key Laboratory of Natural and Biomimetic Drugs, Peking University Health Science Center, Beijing, 100191, China
| | - Tianzhuo Wang
- Department of Human Anatomy, Histology and Embryology, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education) and State Key Laboratory of Natural and Biomimetic Drugs, Peking University Health Science Center, Beijing, 100191, China
| | - Zhenbin Wang
- Department of Human Anatomy, Histology and Embryology, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education) and State Key Laboratory of Natural and Biomimetic Drugs, Peking University Health Science Center, Beijing, 100191, China
| | - Cheng Liu
- Department of Human Anatomy, Histology and Embryology, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education) and State Key Laboratory of Natural and Biomimetic Drugs, Peking University Health Science Center, Beijing, 100191, China
| | - Zhen Li
- Department of Histology and Embryology, the Fourth Military Medical University, Xi'an, 710032, China
| | - Huiying He
- Department of Pathology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, 100191, China.
| | - Jun Zhan
- Department of Human Anatomy, Histology and Embryology, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education) and State Key Laboratory of Natural and Biomimetic Drugs, Peking University Health Science Center, Beijing, 100191, China.
| | - Hongquan Zhang
- Department of Human Anatomy, Histology and Embryology, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education) and State Key Laboratory of Natural and Biomimetic Drugs, Peking University Health Science Center, Beijing, 100191, China.
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Mechanosensing dysregulation in the fibroblast: A hallmark of the aging heart. Ageing Res Rev 2020; 63:101150. [PMID: 32846223 DOI: 10.1016/j.arr.2020.101150] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Revised: 08/03/2020] [Accepted: 08/14/2020] [Indexed: 12/16/2022]
Abstract
The myofibroblast is a specialized fibroblast that expresses α-smooth muscle actin (α-SMA) and participates in wound contraction and fibrosis. The fibroblast to myofibroblast transition depends on chemical and mechanical signals. A fibroblast senses the changes in the environment (extracellular matrix (ECM)) and transduces these changes to the cytoskeleton and the nucleus, resulting in activation or inhibition of α-SMA transcription in a process called mechanosensing. A stiff matrix greatly facilitates the transition from fibroblast to myofibroblast, and although the aging heart is much stiffer than the young one, the aging fibroblast has difficulties in transitioning into the contractile phenotype. This suggests that the events occurring downstream of the matrix, such as activation or changes in expression levels of various proteins participating in mechanotransduction can negatively alter the ability of the aging fibroblast to become a myofibroblast. In this review, we will discuss in detail the changes in ECM, receptors (integrin or non-integrin), focal adhesions, cytoskeleton, and transcription factors involved in mechanosensing that occur with aging.
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He X, Song J, Cai Z, Chi X, Wang Z, Yang D, Xie S, Zhou J, Fu Y, Li W, Kong W, Zhan J, Zhang H. Kindlin-2 deficiency induces fatal intestinal obstruction in mice. Am J Cancer Res 2020; 10:6182-6200. [PMID: 32483447 PMCID: PMC7255029 DOI: 10.7150/thno.46553] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Accepted: 04/22/2020] [Indexed: 02/06/2023] Open
Abstract
Rationale: Smooth muscle-motility disorders are mainly characterized by impaired contractility and functional intestinal obstruction. Some of these cases are caused by genetic mutations of smooth muscle genes ACTA2, ACTG2, MYH11, MYLK and LMOD1. Still the etiology is complex and multifactorial and the underlying pathology is poorly understood. Integrin interaction protein Kindlin-2 is widely expressed in striated and smooth muscle cells (SMC). However, the function of Kindlin-2 in the smooth muscle remains elusive. Methods: We generated two mouse models using different cre promoter transgenic mice, Kindlin-2fl/fl SM22α-cre+ (cKO mice) and Kindlin-2fl/fl; MYH-cre+ (iKO mice). Embryos and adult tissues were prepared for hematoxylin and eosin (H&E) staining, immunohistochemistry (IHC) and terminal deoxynucleotidyl transferase dUTP nick-end labeling (TUNEL) apoptosis assay. We investigated ultrastructure changes of mouse smooth muscle using transmission electron microscopy (TEM) and measured smooth muscle contractile force in mounting aortic and intestinal rings using the multiwire myograph system (DMT 620M). In addition, cell traction force microscopy (CTFM) was applied to observe the functional change of primary SMC after Kindlin-2 depletion by RNAi. Results: Depletion of Kindlin-2 encoding gene Fermt2 in embryonic smooth muscles leads to apoptosis, downregulates the key components of SMC, impairs smooth muscle development, and finally causes embryonic death at E14.5. Tamoxifen-induced Kindlin-2-specific knockout in adult mouse smooth muscle showed decreased blood pressure, intestinal hypoperistalsis, and eventually died of intestinal obstruction. Kindlin-2 depletion also leads to downregulated Myh11, α-SMA, and CNN, shortened myofilament, broken myofibrils, and impaired contractility of the smooth muscles in iKO mice. Mechanistically, loss of Kindlin-2 decreases Ca2+ influx in primary vascular smooth muscle cells (PVSMC) by downregulating the expression of calcium-binding protein S100A14 and STIM1. Conclusion: We demonstrated that Kindlin-2 is essential for maintaining the normal structure and function of smooth muscles. Loss of Kindlin-2 impairs smooth muscle formation during embryonic development by inducing apoptosis and jeopardizes the contraction of adult smooth muscle by blocking Ca2+ influx that leads to intestinal obstruction. Mice with Kindlin-2 depletion in adult smooth muscle could be a potent animal model of intestinal obstruction for disease research, drug treatment and prognosis.
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Li B, Chi X, Song J, Tang Y, Du J, He X, Sun X, Bi Z, Wang Y, Zhan J, Zhang H. Integrin-interacting protein Kindlin-2 induces mammary tumors in transgenic mice. SCIENCE CHINA-LIFE SCIENCES 2018; 62:225-234. [PMID: 30460471 DOI: 10.1007/s11427-018-9336-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2018] [Accepted: 07/23/2018] [Indexed: 11/25/2022]
Abstract
Kindlin-2, an integrin-interacting protein, regulates breast cancer progression. However, currently, no animal model to study the role of Kindlin-2 in the carcinogenesis of mammary gland is available. We established a Kindlin-2 transgenic mouse model using a mammary gland-specific promoter, mammary tumor virus (MMTV) long terminal repeat (LTR). Kindlin-2 was overexpressed in the epithelial cells of the transgenic mice. The mammary gland ductal trees were found to grow faster in MMTV-Kindlin-2 transgenic mice than in control mice during puberty. Kindlin-2 promoted mammary gland growth as indicated by more numerous duct branches and larger lumens, and more alveoli were formed in the mammary glands during pregnancy under Kindlin-2 overexpression. Importantly, mammary gland-specific expression of Kindlin-2 induced tumor formation at the age of 55 weeks on average. Additionally, the levels of estrogen receptor and progesterone receptor were decreased, whereas human epidermal growth factor receptor 2 and β-catenin were upregulated in the Kindlin-2-induced mammary tumors. These findings demonstrated that Kindlin-2 induces mammary tumor formation via activation of the Wnt signaling pathway.
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MESH Headings
- Animals
- Carcinogenesis/genetics
- Carcinogenesis/metabolism
- Carcinogenesis/pathology
- Cell Differentiation
- Cell Proliferation
- Cytoskeletal Proteins/genetics
- Cytoskeletal Proteins/metabolism
- Epithelial Cells/metabolism
- Epithelial Cells/pathology
- Female
- Gene Expression
- Mammary Glands, Animal/metabolism
- Mammary Glands, Animal/pathology
- Mammary Neoplasms, Animal/genetics
- Mammary Neoplasms, Animal/metabolism
- Mammary Neoplasms, Animal/pathology
- Mammary Tumor Virus, Mouse/genetics
- Mice
- Mice, Transgenic
- Muscle Proteins/genetics
- Muscle Proteins/metabolism
- Pregnancy
- Promoter Regions, Genetic
- Receptor, ErbB-2/metabolism
- Receptors, Estrogen/metabolism
- Receptors, Progesterone/metabolism
- Wnt Signaling Pathway
- beta Catenin/metabolism
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Affiliation(s)
- Bing Li
- Department of Anatomy, Histology and Embryology, Key Laboratory of Carcinogenesis and Translational Research, Ministry of Education, and State Key Laboratory of Natural and Biomimetic Drugs, Peking University Health Science Center, Beijing, 100191, China
| | - Xiaochun Chi
- Department of Anatomy, Histology and Embryology, Key Laboratory of Carcinogenesis and Translational Research, Ministry of Education, and State Key Laboratory of Natural and Biomimetic Drugs, Peking University Health Science Center, Beijing, 100191, China
| | - Jiagui Song
- Department of Anatomy, Histology and Embryology, Key Laboratory of Carcinogenesis and Translational Research, Ministry of Education, and State Key Laboratory of Natural and Biomimetic Drugs, Peking University Health Science Center, Beijing, 100191, China
| | - Yan Tang
- Department of Anatomy, Histology and Embryology, Key Laboratory of Carcinogenesis and Translational Research, Ministry of Education, and State Key Laboratory of Natural and Biomimetic Drugs, Peking University Health Science Center, Beijing, 100191, China
| | - Juan Du
- Department of Anatomy, Histology and Embryology, Key Laboratory of Carcinogenesis and Translational Research, Ministry of Education, and State Key Laboratory of Natural and Biomimetic Drugs, Peking University Health Science Center, Beijing, 100191, China
| | - Xiaokun He
- Department of Anatomy, Histology and Embryology, Key Laboratory of Carcinogenesis and Translational Research, Ministry of Education, and State Key Laboratory of Natural and Biomimetic Drugs, Peking University Health Science Center, Beijing, 100191, China
| | - Xiaoran Sun
- Department of Anatomy, Histology and Embryology, Key Laboratory of Carcinogenesis and Translational Research, Ministry of Education, and State Key Laboratory of Natural and Biomimetic Drugs, Peking University Health Science Center, Beijing, 100191, China
| | - Zhenwu Bi
- Department of Anatomy, Histology and Embryology, Key Laboratory of Carcinogenesis and Translational Research, Ministry of Education, and State Key Laboratory of Natural and Biomimetic Drugs, Peking University Health Science Center, Beijing, 100191, China
| | - Yunling Wang
- Institute of Cardiovascular Research, Peking University Health Science Center, Beijing, 100191, China
| | - Jun Zhan
- Department of Anatomy, Histology and Embryology, Key Laboratory of Carcinogenesis and Translational Research, Ministry of Education, and State Key Laboratory of Natural and Biomimetic Drugs, Peking University Health Science Center, Beijing, 100191, China.
| | - Hongquan Zhang
- Department of Anatomy, Histology and Embryology, Key Laboratory of Carcinogenesis and Translational Research, Ministry of Education, and State Key Laboratory of Natural and Biomimetic Drugs, Peking University Health Science Center, Beijing, 100191, China.
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10
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Liu S, Chen S, Ma K, Shao Z. Prognostic value of Kindlin-2 expression in patients with solid tumors: a meta-analysis. Cancer Cell Int 2018; 18:166. [PMID: 30386175 PMCID: PMC6198465 DOI: 10.1186/s12935-018-0651-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2018] [Accepted: 09/27/2018] [Indexed: 12/27/2022] Open
Abstract
Background Kindlin-2 is one of the Kindlin family members which are evolutionarily conserved focal adhesion proteins with integrin β-binding affinity. Recently, accumulative studies have suggested that Kindlin-2 plays important roles in tumor biology. However, the prognostic significance of Kindlin-2 in patients with solid tumors remains controversial. Therefore, this study aimed to clarify the prognostic value of Kindlin-2 in solid tumors via meta-analysis. Methods A comprehensive search was performed in PubMed, Embase, Web of Science and EBSCO for all relevant studies reporting the prognostic significance of Kindlin-2 expression in solid cancer patients. The summary hazard ratio (HR) and corresponding 95% confidence interval (CI) were calculated to estimate the association between Kindlin-2 expression with survival of solid cancer patients. Results We included 14 eligible studies containing 1869 patients in our meta-analysis. The pooled results indicated that high Kindlin-2 expression was significantly associated with poor overall survival (OS) (pooled HR 1.66, 95% CI 1.44–1.92, P < 0.0001), disease-free survival (DFS)/recurrence-free survival (RFS)/progression-free survival (PFS) (pooled HR 1.73, 95% CI 1.16–2.57, P = 0.0067). For certain tumor types, high Kindlin-2 expression was significantly correlated with a poor outcome in patients with solid tumors, including pancreatic ductal adenocarcinoma (DFS/RFS/PFS), esophageal squamous cell carcinoma (OS, DFS/RFS/PFS), hepatocellular carcinoma (OS), clear cell renal cell carcinoma (OS), bladder cancer (OS, DFS/RFS/PFS), chondrosarcoma (OS), osteosarcoma (OS), gastric cancer (DFS/RFS/PFS), and glioma (OS). Conclusions Our meta-analysis demonstrated that high Kindlin-2 expression might indicate poor outcome in patients with solid tumors and could serve as a prognostic biomarker for solid cancer patients.
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Affiliation(s)
- Sheng Liu
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022 China
| | - Sheng Chen
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022 China
| | - Kaige Ma
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022 China
| | - Zengwu Shao
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022 China
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11
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Zhan J, Zhang H. Kindlins: Roles in development and cancer progression. Int J Biochem Cell Biol 2018; 98:93-103. [PMID: 29544897 DOI: 10.1016/j.biocel.2018.03.008] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2017] [Revised: 03/09/2018] [Accepted: 03/12/2018] [Indexed: 12/15/2022]
Abstract
The Kindlins are FERM domain proteins comprising three members (Kindlin-1, -2 and -3) which are evolutionarily conserved. Kindlins bind with β-integrin cytoplasmic tails and execute broad biological functions including directed cell migration, proliferation, differentiation and survival. In light of more and more evidence point to the importance of Kindlin family members in normal development and human diseases especially in cancers, we aim to portrait the profile of Kindlins in the regulation of embryonic development and cancer progression. We first summarize all the known binding proteins for individual member of Kindlin family. We then outline the Kindlin-regulated signaling pathways including Wnt/β-catenin, TGFβ, EGFR, and Hedgehog signalings. Furthermore, we descript the pivotal role of Kindlins in embryonic development in detail with notions that Kindlin-1 is highly expressed in endo/ectodermal originated tissues, Kindlin-2 is highly expressed in mesoderm-derived tissues and Kindlin-3 is highly expressed in mesoderm- and ectoderm-derived tissues. Deregulation of Kindlins is generally reported in cancers from different organs. We also briefly descript the role of Kindlins in other diseases. Finally, we update the recent understanding of how Kindlins are regulated and modified as well as the degradation mechanism of Kindlins, respectively.
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Affiliation(s)
- Jun Zhan
- Peking University Health Science Center, Department of Anatomy, Histology and Embryology, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), and State Key Laboratory of Natural and Biomimetic Drugs, Beijing 100191, China
| | - Hongquan Zhang
- Peking University Health Science Center, Department of Anatomy, Histology and Embryology, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), and State Key Laboratory of Natural and Biomimetic Drugs, Beijing 100191, China.
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12
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Focal adhesion molecule Kindlin-1 mediates activation of TGF-β signaling by interacting with TGF-βRI, SARA and Smad3 in colorectal cancer cells. Oncotarget 2018; 7:76224-76237. [PMID: 27776350 PMCID: PMC5342809 DOI: 10.18632/oncotarget.12779] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2016] [Accepted: 10/05/2016] [Indexed: 02/06/2023] Open
Abstract
Kindlin-1, an integrin-interacting protein, has been implicated in TGF-β/Smad3 signaling. However, the molecular mechanism underlying Kindlin-1 regulation of TGF-β/Smad3 signaling remains elusive. Here, we reported that Kindlin-1 is an important mediator of TGF-β/Smad3 signaling by showing that Kindlin-1 physically interacts with TGF-β receptor I (TβRI), Smad anchor for receptor activation (SARA) and Smad3. Kindlin-1 is required for the interaction of Smad3 with TβRI, Smad3 phosphorylation, nuclear translocation, and finally the activation of TGF-β/Smad3 signaling pathway. Functionally, Kindlin-1 promoted colorectal cancer (CRC) cell proliferation in vitro and tumor growth in vivo, and was also required for CRC cell migration and invasion via an epithelial to mesenchymal transition. Kindlin-1 was found to be increased with the CRC progression from stages I to IV. Importantly, raised expression level of Kindlin-1 correlates with poor outcome in CRC patients. Taken together, we demonstrated that Kindlin-1 promotes CRC progression by recruiting SARA and Smad3 to TβRI and thereby activates TGF-β/Smad3 signaling. Thus, Kindlin-1 is a novel regulator of TGF-β/Smad3 signaling and may also be a potential target for CRC therapeutics.
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13
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Lin J, Lin W, Ye Y, Wang L, Chen X, Zang S, Huang A. Kindlin-2 promotes hepatocellular carcinoma invasion and metastasis by increasing Wnt/β-catenin signaling. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2017; 36:134. [PMID: 28969700 PMCID: PMC5623973 DOI: 10.1186/s13046-017-0603-4] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/07/2017] [Accepted: 09/19/2017] [Indexed: 12/15/2022]
Abstract
Background Kindlin-2 is a member of the focal adhesion protein family that regulates invasion and metastasis in multiple malignancies; however, little is known about the role of Kindlin-2 in hepatocellular carcinoma (HCC) progression. Methods Immunohistochemistry was used to investigate Kindlin-2 expression in 177 pairs of human HCC and adjacent liver tissue samples. The role of Kindlin-2 in the in vitro invasion and migration of HCC cell lines was evaluated in MHCC97H, LM3 and SMMC7721 cells. Microarray expression analysis was applied to explore the molecular mechanism through which Kindlin-2 promoted HCC progression. Quantitative real-time PCR and Western blotting were performed to verify the microarray results. Results High Kindlin-2 expression was found to significantly correlate with aggressive HCC clinicopathological features including tumor encapsulation, microvascular invasion, extrahepatic metastasis and poor prognosis. In vitro, Kindlin-2 knockout or knockdown inhibited HCC cell adhesion, migration and invasion, while ectopic Kindlin-2 expression promoted these processes. Importantly, Kindlin-2 activated Wnt/β-catenin signaling and increased β-catenin expression, especially levels of non-phosphorylated β-catenin, as well as two Wnt/β-catenin signaling pathway targets, Axin2 and MMP7. Kindlin-2 also induced a change in the expression profile of HCC cells, suggesting the cells underwent epithelial-mesenchymal transition. For example, the expression of the epithelial marker E-cadherin was downregulated, while the mesenchymal markers Vimentin, N-cadherin and Snail were upregulated. Conclusion Kindlin-2 promotes HCC invasion, metastasis and epithelial-mesenchymal transition through Wnt/β-catenin signaling.
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Affiliation(s)
- Jie Lin
- Department of Pathology, The School of Basic Medical Sciences, Fujian Medical University, No.1, Xuefu North Road, University Town, Fuzhou, 350122, Fujian, China.,Department of Pathology, Shengli Clinical Medical College of Fujian Medical University, Fuzhou, 350001, China
| | - Wansong Lin
- Laboratory of Immuno-Oncology, Fujian Cancer Hospital and Fujian Medical University Cancer hospital, Fuzhou, 350014, China.,Fujian Provincial Key Laboratory of Translational Cancer Medicine, Fuzhou, 350014, China
| | - Yunbin Ye
- Laboratory of Immuno-Oncology, Fujian Cancer Hospital and Fujian Medical University Cancer hospital, Fuzhou, 350014, China.,Fujian Provincial Key Laboratory of Translational Cancer Medicine, Fuzhou, 350014, China
| | - Liping Wang
- Department of Pathology, Shengli Clinical Medical College of Fujian Medical University, Fuzhou, 350001, China
| | - Xiaoyan Chen
- Department of Pathology, Shengli Clinical Medical College of Fujian Medical University, Fuzhou, 350001, China
| | - Shengbing Zang
- Department of Pathology, The School of Basic Medical Sciences, Fujian Medical University, No.1, Xuefu North Road, University Town, Fuzhou, 350122, Fujian, China
| | - Aimin Huang
- Department of Pathology, The School of Basic Medical Sciences, Fujian Medical University, No.1, Xuefu North Road, University Town, Fuzhou, 350122, Fujian, China.
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14
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Li M, Pei X, Wang G, Zhan J, Du J, Jiang H, Tang Y, Zhang H, He H. Kindlin-2 promotes clear cell renal cell carcinoma progression through the Wnt signaling pathway. Oncol Rep 2017; 38:1551-1560. [DOI: 10.3892/or.2017.5789] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2017] [Accepted: 06/22/2017] [Indexed: 11/06/2022] Open
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15
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Zhang Z, Mu Y, Veevers J, Peter AK, Manso AM, Bradford WH, Dalton ND, Peterson KL, Knowlton KU, Ross RS, Zhou X, Chen J. Postnatal Loss of Kindlin-2 Leads to Progressive Heart Failure. Circ Heart Fail 2017; 9:CIRCHEARTFAILURE.116.003129. [PMID: 27502369 DOI: 10.1161/circheartfailure.116.003129] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/17/2016] [Accepted: 06/24/2016] [Indexed: 01/10/2023]
Abstract
BACKGROUND The striated muscle costamere, a multiprotein complex at the boundary between the sarcomere and the sarcolemma, plays an integral role in maintaining striated muscle structure and function. Multiple costamere-associated proteins, such as integrins and integrin-interacting proteins, have been identified and shown to play an increasingly important role in the pathogenesis of human cardiomyopathy. Kindlin-2 is an adaptor protein that binds to the integrin β cytoplasmic tail to promote integrin activation. Genetic deficiency of Kindlin-2 results in embryonic lethality, and knockdown of the Kindlin-2 homolog in Caenorhabditis elegans and Danio rerio suggests that it has an essential role in integrin function and normal muscle structure and function. The precise role of Kindlin-2 in the mammalian cardiac myocyte remains to be determined. METHODS AND RESULTS The current studies were designed to investigate the role of Kindlin-2 in the mammalian heart. We generated a series of cardiac myocyte-specific Kindlin-2 knockout mice with excision of the Kindlin-2 gene in either developing or adult cardiac myocytes. We found that mice lacking Kindlin-2 in the early developing heart are embryonic lethal. We demonstrate that deletion of Kindlin-2 at late gestation or in adult cardiac myocytes resulted in heart failure and premature death, which were associated with enlargement of the heart and extensive fibrosis. In addition, integrin β1D protein expression was significantly downregulated in the adult heart. CONCLUSIONS Kindlin-2 is required to maintain integrin β1D protein stability. Postnatal loss of Kindlin-2 from cardiac myocytes leads to progressive heart failure, showing the importance of costameric proteins like Kindlin-2 for homeostasis of normal heart function.
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Affiliation(s)
- Zhiyuan Zhang
- From the Department of Cardiovascular Surgery, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China (Z.Z., X.Z.); Department of Medicine-Cardiology, University of California San Diego, La Jolla (Z.Z., Y.M., J.V., A.K.P., A.M.M., W.H.B., N.D.D., K.L.P., K.U.K., R.S.R., J.C.); Veterans Administration Healthcare, Medicine/Cardiology, San Diego, CA (A.M.M., R.S.R.)
| | - Yongxin Mu
- From the Department of Cardiovascular Surgery, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China (Z.Z., X.Z.); Department of Medicine-Cardiology, University of California San Diego, La Jolla (Z.Z., Y.M., J.V., A.K.P., A.M.M., W.H.B., N.D.D., K.L.P., K.U.K., R.S.R., J.C.); Veterans Administration Healthcare, Medicine/Cardiology, San Diego, CA (A.M.M., R.S.R.)
| | - Jennifer Veevers
- From the Department of Cardiovascular Surgery, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China (Z.Z., X.Z.); Department of Medicine-Cardiology, University of California San Diego, La Jolla (Z.Z., Y.M., J.V., A.K.P., A.M.M., W.H.B., N.D.D., K.L.P., K.U.K., R.S.R., J.C.); Veterans Administration Healthcare, Medicine/Cardiology, San Diego, CA (A.M.M., R.S.R.)
| | - Angela K Peter
- From the Department of Cardiovascular Surgery, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China (Z.Z., X.Z.); Department of Medicine-Cardiology, University of California San Diego, La Jolla (Z.Z., Y.M., J.V., A.K.P., A.M.M., W.H.B., N.D.D., K.L.P., K.U.K., R.S.R., J.C.); Veterans Administration Healthcare, Medicine/Cardiology, San Diego, CA (A.M.M., R.S.R.)
| | - Ana Maria Manso
- From the Department of Cardiovascular Surgery, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China (Z.Z., X.Z.); Department of Medicine-Cardiology, University of California San Diego, La Jolla (Z.Z., Y.M., J.V., A.K.P., A.M.M., W.H.B., N.D.D., K.L.P., K.U.K., R.S.R., J.C.); Veterans Administration Healthcare, Medicine/Cardiology, San Diego, CA (A.M.M., R.S.R.)
| | - William H Bradford
- From the Department of Cardiovascular Surgery, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China (Z.Z., X.Z.); Department of Medicine-Cardiology, University of California San Diego, La Jolla (Z.Z., Y.M., J.V., A.K.P., A.M.M., W.H.B., N.D.D., K.L.P., K.U.K., R.S.R., J.C.); Veterans Administration Healthcare, Medicine/Cardiology, San Diego, CA (A.M.M., R.S.R.)
| | - Nancy D Dalton
- From the Department of Cardiovascular Surgery, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China (Z.Z., X.Z.); Department of Medicine-Cardiology, University of California San Diego, La Jolla (Z.Z., Y.M., J.V., A.K.P., A.M.M., W.H.B., N.D.D., K.L.P., K.U.K., R.S.R., J.C.); Veterans Administration Healthcare, Medicine/Cardiology, San Diego, CA (A.M.M., R.S.R.)
| | - Kirk L Peterson
- From the Department of Cardiovascular Surgery, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China (Z.Z., X.Z.); Department of Medicine-Cardiology, University of California San Diego, La Jolla (Z.Z., Y.M., J.V., A.K.P., A.M.M., W.H.B., N.D.D., K.L.P., K.U.K., R.S.R., J.C.); Veterans Administration Healthcare, Medicine/Cardiology, San Diego, CA (A.M.M., R.S.R.)
| | - Kirk U Knowlton
- From the Department of Cardiovascular Surgery, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China (Z.Z., X.Z.); Department of Medicine-Cardiology, University of California San Diego, La Jolla (Z.Z., Y.M., J.V., A.K.P., A.M.M., W.H.B., N.D.D., K.L.P., K.U.K., R.S.R., J.C.); Veterans Administration Healthcare, Medicine/Cardiology, San Diego, CA (A.M.M., R.S.R.)
| | - Robert S Ross
- From the Department of Cardiovascular Surgery, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China (Z.Z., X.Z.); Department of Medicine-Cardiology, University of California San Diego, La Jolla (Z.Z., Y.M., J.V., A.K.P., A.M.M., W.H.B., N.D.D., K.L.P., K.U.K., R.S.R., J.C.); Veterans Administration Healthcare, Medicine/Cardiology, San Diego, CA (A.M.M., R.S.R.)
| | - Xinmin Zhou
- From the Department of Cardiovascular Surgery, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China (Z.Z., X.Z.); Department of Medicine-Cardiology, University of California San Diego, La Jolla (Z.Z., Y.M., J.V., A.K.P., A.M.M., W.H.B., N.D.D., K.L.P., K.U.K., R.S.R., J.C.); Veterans Administration Healthcare, Medicine/Cardiology, San Diego, CA (A.M.M., R.S.R.)
| | - Ju Chen
- From the Department of Cardiovascular Surgery, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China (Z.Z., X.Z.); Department of Medicine-Cardiology, University of California San Diego, La Jolla (Z.Z., Y.M., J.V., A.K.P., A.M.M., W.H.B., N.D.D., K.L.P., K.U.K., R.S.R., J.C.); Veterans Administration Healthcare, Medicine/Cardiology, San Diego, CA (A.M.M., R.S.R.).
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Wang P, Zhan J, Song J, Wang Y, Fang W, Liu Z, Zhang H. Differential expression of Kindlin-1 and Kindlin-2 correlates with esophageal cancer progression and epidemiology. SCIENCE CHINA-LIFE SCIENCES 2017; 60:1214-1222. [PMID: 28667517 DOI: 10.1007/s11427-016-9044-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2017] [Accepted: 03/31/2017] [Indexed: 10/19/2022]
Abstract
Esophageal cancer (EC) is one of the most lethal malignancies in China, but the etiology and risk factors remain unclear. The integrin-interacting proteins Kindlin-1 and Kindlin-2 are focal adhesion molecules that activate transmembrane receptor integrins and regulate tumor cell growth, invasion, and metastasis. Here, we report that Kindlin-1 and Kindlin-2 are differentially expressed among Chinese EC patients. For this, Kindlin-1 and Kindlin-2 expression was evaluated in 220 EC patients by immunohistochemistry (IHC) and found to be correlated with the EC progression, along with a variety of epidemiologic parameters, including smoking, family EC history, and EC invasion status. Moreover, data downloaded from the Oncomine database revealed that both Kindlin-1 and Kindlin-2 were upregulated in ECs compared with normal esophageal tissues; although Kindlin-1 was highly expressed in well-differentiated tumors, whereas Kindlin-2 was more prevalent in poorly differentiated tumors. Collectively, these data suggest that Kindlin-1 may inhibit, while Kindlin-2 may promote, EC progression. This study, for the first time, linked the expression of Kindlin-1 and Kindlin-2 with EC family genetic background and living habits, which may help further our understanding of the various causes of EC.
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Affiliation(s)
- Peng Wang
- Department of Anatomy, Histology and Embryology, Key Laboratory of Carcinogenesis and Translational Research, Ministry of Education, and State Key Laboratory of Natural and Biomimetic Drugs, Peking University Health Science Center, Beijing, 100191, China.,Department of Pathology, Peking University Health Science Center, Beijing, 100191, China
| | - Jun Zhan
- Department of Anatomy, Histology and Embryology, Key Laboratory of Carcinogenesis and Translational Research, Ministry of Education, and State Key Laboratory of Natural and Biomimetic Drugs, Peking University Health Science Center, Beijing, 100191, China
| | - Jiagui Song
- Department of Anatomy, Histology and Embryology, Key Laboratory of Carcinogenesis and Translational Research, Ministry of Education, and State Key Laboratory of Natural and Biomimetic Drugs, Peking University Health Science Center, Beijing, 100191, China
| | - Yunling Wang
- Institute of Cardiovascular Research, Peking University Health Science Center, Beijing, 100191, China
| | - Weigang Fang
- Department of Anatomy, Histology and Embryology, Key Laboratory of Carcinogenesis and Translational Research, Ministry of Education, and State Key Laboratory of Natural and Biomimetic Drugs, Peking University Health Science Center, Beijing, 100191, China. .,Department of Pathology, Peking University Health Science Center, Beijing, 100191, China.
| | - Zhihua Liu
- State Key Laboratory of Molecular Oncology, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China.
| | - Hongquan Zhang
- Department of Anatomy, Histology and Embryology, Key Laboratory of Carcinogenesis and Translational Research, Ministry of Education, and State Key Laboratory of Natural and Biomimetic Drugs, Peking University Health Science Center, Beijing, 100191, China.
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17
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Ning K, Zhang H, Wang Z, Li K. Prognostic implications of Kindlin proteins in human osteosarcoma. Onco Targets Ther 2017; 10:657-665. [PMID: 28223823 PMCID: PMC5308570 DOI: 10.2147/ott.s125418] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
The Kindlin protein family, comprising Kindlin-1, Kindlin-2 and Kindlin-3, play important roles in various human cancers. Here, to explore the clinical significance of Kindlins in human osteosarcomas, quantitative real-time PCR and Western blot analyses were performed to detect the expression of Kindlin-1, Kindlin-2 and Kindlin-3 mRNAs and proteins in 20 self-pairs of osteosarcoma and adjacent noncancerous tissues. Then, immunohistochemistry was performed to examine subcellular localizations and expression patterns of Kindlin proteins in 100 osteosarcoma and matched adjacent noncancerous tissues. Kindlin-1, Kindlin-2 and Kindlin-3 protein immunostainings were localized in the cytoplasm, nucleus and cytoplasm, respectively, of tumor cells in primary osteosarcoma tissues. Statistically, the expression levels of Kindlin-1 and Kindlin-2 mRNAs and proteins in osteosarcoma tissues were all significantly higher (both P<0.01), but those of Kindlin-3 mRNA and protein were both dramatically lower (both P<0.05), than in matched adjacent noncancerous tissues. In addition, the overexpressions of Kindlin-1 and Kindlin-2 proteins were both significantly associated with high tumor grade (both P=0.01), presence of metastasis (both P=0.006), recurrence (both P=0.006) and poor response to chemotherapy (both P=0.02). Moreover, Kindlin-1 and Kindlin-2 expressions were both identified as independent prognostic factors for overall (both P=0.01) and disease-free (P=0.02 and 0.01, respectively) survivals of osteosarcoma patients. However, no associations were observed between Kindlin-3 expression and various clinicopathologic features and patients’ prognosis. In conclusion, aberrant expression of Kindlin-1 and Kindlin-2 may function as reliable markers for progression and prognosis in osteosarcoma patients, especially for tumor recurrence.
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Affiliation(s)
- Kai Ning
- Department of Orthopedics Surgery Center, People's Hospital of Xinjiang Uygur Autonomous Region, Urumqi, People's Republic of China
| | - Haoshaqiang Zhang
- Department of Orthopedics Surgery Center, People's Hospital of Xinjiang Uygur Autonomous Region, Urumqi, People's Republic of China
| | - Zhigang Wang
- Department of Orthopedics Surgery Center, People's Hospital of Xinjiang Uygur Autonomous Region, Urumqi, People's Republic of China
| | - Kun Li
- Department of Orthopedics Surgery Center, People's Hospital of Xinjiang Uygur Autonomous Region, Urumqi, People's Republic of China
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18
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Kindlin-2 Modulates the Survival, Differentiation, and Migration of Induced Pluripotent Cell-Derived Mesenchymal Stromal Cells. Stem Cells Int 2017; 2017:7316354. [PMID: 28163724 PMCID: PMC5253493 DOI: 10.1155/2017/7316354] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2016] [Revised: 11/24/2016] [Accepted: 12/12/2016] [Indexed: 01/21/2023] Open
Abstract
Kindlin-2 is a multidomain intracellular protein that can be recruited to β-integrin domains to activate signaling, initiate transcriptional programs, and bind to E-cadherin. To explore its involvement in cell fate decisions in mesenchymal cells, we studied the effects of Kindlin-2 modification (overexpression/knockdown) in induced pluripotent cell-derived mesenchymal stromal cells (iPSC-MSCs). Kindlin-2 overexpression resulted in increased proliferation and reduced apoptosis of iPSC-MSCs, as well as inhibition of their differentiation towards osteocytes, adipocytes, and chondrocytes. In contrast, siRNA-mediated Kindlin-2 knockdown induced increased apoptosis and increased differentiation response in iPSC-MSCs. The ability of iPSC-MSCs to adhere to VCAM-1/SDF-1α under shear stress and to migrate in a wound scratch assay was significantly increased after Kindlin-2 overexpression. In contrast, inhibition of mixed lymphocyte reaction (MLR) was generally independent of Kindlin-2 modulation in iPSC-MSCs, except for decreased production of interleukin-2 (IL-2) after Kindlin-2 overexpression in iPS-MSCs. Thus, Kindlin-2 upregulates survival, proliferation, stemness, and migration potential in iPSC-MSCs and may therefore be beneficial in optimizing performance of iPSC-MSC in therapies.
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Depletion of Kindlin-2 induces cardiac dysfunction in mice. SCIENCE CHINA-LIFE SCIENCES 2016; 59:1123-1130. [PMID: 27722852 DOI: 10.1007/s11427-016-0025-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2016] [Accepted: 07/07/2016] [Indexed: 01/08/2023]
Abstract
Kindlin-2, a member of the Kindlin family focal adhesion proteins, plays an important role in cardiac development. It is known that defects in the Z-disc proteins lead to hypertrophic cardiomyopathy (HCM) or dilated cardiomyopathy (DCM). Our previous investigation showed that Kindlin-2 is mainly localized at the Z-disc and depletion of Kindlin-2 disrupts the structure of the Z-Disc. Here, we reported that depletion of Kindlin-2 leads to the disordered myocardial fibers, fractured and vacuolar degeneration in myocardial fibers. Interestingly, depletion of Kindlin-2 in mice induced cardiac myocyte hypertrophy and increased the heart weight. Furthermore, decreased expression of Kindlin-2 led to cardiac dysfunction and also markedly impairs systolic function. Our data indicated that Kindlin-2 not only maintains the cardiac structure but also is required for cardiac function.
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Guo B, Gao J, Zhan J, Zhang H. Kindlin-2 interacts with and stabilizes EGFR and is required for EGF-induced breast cancer cell migration. Cancer Lett 2015; 361:271-81. [PMID: 25790908 DOI: 10.1016/j.canlet.2015.03.011] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2015] [Revised: 03/10/2015] [Accepted: 03/10/2015] [Indexed: 11/26/2022]
Abstract
Epidermal growth factor receptor (EGFR) mediates multiple signaling pathways that regulate cell proliferation, migration and tumor invasion. Kindlin-2 has been known as a focal adhesion molecule that binds to integrin to control cell migration and invasion. However, molecular mechanisms underlying the role of Kindlin-2 in breast cancer progression remain elusive. Here we report that Kindlin-2 interacts with EGFR and mediates EGF-induced breast cancer cell migration. We found that EGF treatment dramatically increases Kindlin-2 expression at both mRNA and protein levels in a variety of cancer cells. Inhibitors specific for EGFR or PI3K blocked Kindlin-2 induction by EGF. Importantly, Kindlin-2 interacted with EGFR kinase domain, which was independent of Kindlin-2 binding to integrin cytoplasmic domain. Intriguingly, Kindlin-2 stabilized EGFR protein by blocking its ubiquitination and degradation. Depletion of Kindlin-2 impaired EGF-induced cell migration. Our results demonstrated that Kindlin-2 participates in EGFR signaling and regulates breast cancer progression.
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Affiliation(s)
- Baohui Guo
- Key Laboratory of Carcinogenesis and Translational Research, Ministry of Education, and State Key Laboratory of Natural and Biomimetic Drugs, Peking University Health Science Center, Beijing 100191, China; Laboratory of Molecular Cell Biology and Tumor Biology, Department of Anatomy, Histology and Embryology, Peking University Health Science Center, Beijing 100191, China
| | - Jianchao Gao
- Key Laboratory of Carcinogenesis and Translational Research, Ministry of Education, and State Key Laboratory of Natural and Biomimetic Drugs, Peking University Health Science Center, Beijing 100191, China; Laboratory of Molecular Cell Biology and Tumor Biology, Department of Anatomy, Histology and Embryology, Peking University Health Science Center, Beijing 100191, China
| | - Jun Zhan
- Key Laboratory of Carcinogenesis and Translational Research, Ministry of Education, and State Key Laboratory of Natural and Biomimetic Drugs, Peking University Health Science Center, Beijing 100191, China; Laboratory of Molecular Cell Biology and Tumor Biology, Department of Anatomy, Histology and Embryology, Peking University Health Science Center, Beijing 100191, China
| | - Hongquan Zhang
- Key Laboratory of Carcinogenesis and Translational Research, Ministry of Education, and State Key Laboratory of Natural and Biomimetic Drugs, Peking University Health Science Center, Beijing 100191, China; Laboratory of Molecular Cell Biology and Tumor Biology, Department of Anatomy, Histology and Embryology, Peking University Health Science Center, Beijing 100191, China.
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Zhan J, Song J, Wang P, Chi X, Wang Y, Guo Y, Fang W, Zhang H. Kindlin-2 induced by TGF-β signaling promotes pancreatic ductal adenocarcinoma progression through downregulation of transcriptional factor HOXB9. Cancer Lett 2015; 361:75-85. [PMID: 25724625 DOI: 10.1016/j.canlet.2015.02.039] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2014] [Revised: 01/14/2015] [Accepted: 02/17/2015] [Indexed: 11/17/2022]
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is the fourth leading cause of cancer-related deaths with no effective therapeutics. Invasion and metastasis are the major characteristics of PDAC. However, mechanisms underlying PDAC invasion and metastasis are elusive. In this report, we found that Kindlin-2 is a target protein of transforming growth factor β (TGF-β) signaling and is upregulated by TGF-β1 in PDAC cells. TGF-β1-upregulated Kindlin-2 promotes PDAC cell growth, migration and invasion, whereas Kindlin-2 upregulates transforming growth factor receptor I (TβRI), a key component of TGF-β signaling. Thereby Kindlin-2 and TGF-β signaling constitute a positive feedback loop. Mechanistically, Kindlin-2 promotes PDAC progression by downregulation of HOXB9 and E-cadherin. For clinical relevance, enhanced expression of Kindlin-2 predicts a poor overall survival for PDAC patients. Gene expression levels of Kindlin-2, TGF-β, TβRI and HOXB9 are all correlated with the overall survival of PDAC patients in an Oncomine dataset. Taken together, our findings demonstrated that TGF-β1-induced Kindlin-2 expression promotes PDAC progression by downregulation of HOXB9 and E-cadherin.
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Affiliation(s)
- Jun Zhan
- Key Laboratory of Carcinogenesis and Translational Research, Ministry of Education, and State Key Laboratory of Natural and Biomimetic Drugs, Health Science Center, Peking University, Beijing 100191, China; Department of Anatomy, Histology and Embryology, Laboratory of Molecular Cell Biology and Tumor Biology, Beijing 100191, China
| | - Jiagui Song
- Key Laboratory of Carcinogenesis and Translational Research, Ministry of Education, and State Key Laboratory of Natural and Biomimetic Drugs, Health Science Center, Peking University, Beijing 100191, China; Department of Anatomy, Histology and Embryology, Laboratory of Molecular Cell Biology and Tumor Biology, Beijing 100191, China
| | - Peng Wang
- Key Laboratory of Carcinogenesis and Translational Research, Ministry of Education, and State Key Laboratory of Natural and Biomimetic Drugs, Health Science Center, Peking University, Beijing 100191, China; Department of Anatomy, Histology and Embryology, Laboratory of Molecular Cell Biology and Tumor Biology, Beijing 100191, China
| | - Xiaochun Chi
- Key Laboratory of Carcinogenesis and Translational Research, Ministry of Education, and State Key Laboratory of Natural and Biomimetic Drugs, Health Science Center, Peking University, Beijing 100191, China; Department of Anatomy, Histology and Embryology, Laboratory of Molecular Cell Biology and Tumor Biology, Beijing 100191, China
| | - Yunling Wang
- Key Laboratory of Carcinogenesis and Translational Research, Ministry of Education, and State Key Laboratory of Natural and Biomimetic Drugs, Health Science Center, Peking University, Beijing 100191, China; Department of Anatomy, Histology and Embryology, Laboratory of Molecular Cell Biology and Tumor Biology, Beijing 100191, China
| | - Yongqing Guo
- Department of Thoracic Surgery, Sino-Japan Friendship Hospital, Beijing 100123, China
| | - Weigang Fang
- Key Laboratory of Carcinogenesis and Translational Research, Ministry of Education, and State Key Laboratory of Natural and Biomimetic Drugs, Health Science Center, Peking University, Beijing 100191, China; Department of Pathology, Health Science Center, Peking University, Beijing 100191, China.
| | - Hongquan Zhang
- Key Laboratory of Carcinogenesis and Translational Research, Ministry of Education, and State Key Laboratory of Natural and Biomimetic Drugs, Health Science Center, Peking University, Beijing 100191, China; Department of Anatomy, Histology and Embryology, Laboratory of Molecular Cell Biology and Tumor Biology, Beijing 100191, China.
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Zhan J, Yang M, Zhang J, Guo Y, Liu W, Zhang H. Kindler syndrome protein Kindlin-1 is mainly expressed in adult tissues originating from ectoderm/endoderm. SCIENCE CHINA-LIFE SCIENCES 2015; 58:432-41. [PMID: 25591451 DOI: 10.1007/s11427-014-4775-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2014] [Accepted: 10/03/2014] [Indexed: 12/19/2022]
Abstract
Mutations of integrin-interacting protein Kindlin-1 cause Kindler syndrome and deregulation of Kindlin-1 is implicated in human cancers. The Kindlin-1-related diseases are confined in limited tissue types. However, Kindlin-1 tissue distribution and the dogma that governs Kindlin-1 expression in normal human body are elusive. This study examined Kindlin-1 expression in normal human adult organs, human and mouse embryonic organs by immunohistochemical analyses. We identified a general principle that the level of Kindlin-1 expression in tissues is tightly correlated with the corresponding germ layers from which these tissues originate. We compared the expression of Kindlin-1 with Kindlin-2 and found that Kindlin-1 is highly expressed in epithelial tissues derived from ectoderm and endoderm, whereas Kindlin-2 is mainly expressed in mesoderm-derived tissues. Likewise, Kindlin-1 was also found highly expressed in endoderm/ectoderm-derived tissues in human and mouse embryos. Our findings indicate that Kindlin-1 may play an importance role in the development of endoderm/ectoderm related tissues.
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Affiliation(s)
- Jun Zhan
- Key Laboratory of Carcinogenesis and Translational Research, Ministry of Education, State Key Laboratory of Natural and Biomimetic Drugs, Peking University Health Science Center, Beijing, 100191, China
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