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Jang DM, Oh EK, Hahn H, Kim HS, Han BW. Structural insights into apoptotic regulation of human Bfk as a novel Bcl-2 family member. Comput Struct Biotechnol J 2022; 20:745-756. [PMID: 35140891 PMCID: PMC8814693 DOI: 10.1016/j.csbj.2022.01.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Revised: 01/18/2022] [Accepted: 01/23/2022] [Indexed: 11/29/2022] Open
Affiliation(s)
- Dong Man Jang
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul 08826, Republic of Korea
- Research Institute, National Cancer Center, Goyang, Gyeonggi 10408, Republic of Korea
| | - Eun Kyung Oh
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul 08826, Republic of Korea
| | - Hyunggu Hahn
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul 08826, Republic of Korea
| | - Hyoun Sook Kim
- Research Institute, National Cancer Center, Goyang, Gyeonggi 10408, Republic of Korea
- Corresponding authors.
| | - Byung Woo Han
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul 08826, Republic of Korea
- Corresponding authors.
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Miyai S, Hendawy AO, Sato K. Gene expression profile of peripheral blood mononuclear cells in mild to moderate obesity in dogs. Vet Anim Sci 2021; 13:100183. [PMID: 34258471 PMCID: PMC8251507 DOI: 10.1016/j.vas.2021.100183] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Revised: 05/28/2021] [Accepted: 06/03/2021] [Indexed: 11/18/2022] Open
Abstract
Background Molecular mechanisms and early diagnosis on the development of mild to moderate of canine obesity are not understood although recent dog obesity is a widespread problem. To understand the differences between normal weight and mild to moderate obesity, the purpose of this study is to investigate the gene expression profiles of peripheral blood mononuclear cells (PBMC) in dogs. Methods This study comprised a sample of 12 privately-owned Miniature Dachshund, which were divided into two groups (obese and control) based on body condition scores (BCS). Serum biochemical parameters and PBMC gene expression profiles were compared between groups. Results A statistically significant between group differences was recorded for body weight (BW), BCS, serum Insulin and triglyceride (TG) levels (p < 0.05). RNA-seq revealed the upregulated 154 genes and the downregulated 198 genes in obese dogs at more than 3.5-fold change compared with control animals. Hemoglobin subunits alpha- and beta-like were detected in the downregulated genes. RT-PCR analysis showed downregulation of FOLH1, ALAS2 and LOC100855540 genes, and upregulation of BCL2L15 gene, suggesting that the metabolic difference between normal and mild to moderate obesity was involved in the hemoglobin metabolism. Conclusions This study revealed significant differences in the gene expression of BCL2L15, FOLH1, ALAS2, and hemoglobin subunits such as LOC100855540 between normal weight and mild to moderate obese dogs, which indicate that these genes may prevent the obesity in dogs and be potentially useful for diagnosis of mild to moderate obesity.
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Affiliation(s)
- Sayaka Miyai
- Department of Animal Health Technology, Yamazaki University of Animal Health Technology, Hachioji, Tokyo, Japan
- Department of Biological Production, Tokyo University of Agriculture and Technology, Fuchu, Tokyo, Japan
- Corresponding author.
| | - Amin Omar Hendawy
- Department of Biological Production, Tokyo University of Agriculture and Technology, Fuchu, Tokyo, Japan
- Department of Animal and Poultry Production, Damanhour University, Damanhour, Egypt
| | - Kan Sato
- Department of Biological Production, Tokyo University of Agriculture and Technology, Fuchu, Tokyo, Japan
- Laboratory of Animal Nutrition, Division of Life Science, Graduate School of Agricultural Science, Tohoku University, Sendai, Miyagi, Japan
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Yang D, Liu A, Wu Y, Li B, Nan S, Yin R, Zhu H, Chen J, Ding Y, Ding M. BCL2L15 Depletion Inhibits Endometrial Receptivity via the STAT1 Signaling Pathway. Genes (Basel) 2020; 11:genes11070816. [PMID: 32708974 PMCID: PMC7397047 DOI: 10.3390/genes11070816] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Revised: 07/10/2020] [Accepted: 07/16/2020] [Indexed: 12/31/2022] Open
Abstract
In domestic ruminants, endometrial receptivity is critical for a successful pregnancy and economic efficiency. Although the endometrium undergoes major cellular changes during peri-implantation, the precise mechanisms regulating goat endometrial receptivity remain unknown. In this study, we investigated the functional roles and signal transduction of the B-cell lymphoma 2 (Bcl-2)-like protein 15 (BCL2L15) in the regulation of endometrial receptivity in vitro. Our results showed that BCL2L15 was up-regulated in goat endometrial epithelial cells (EECs) under progesterone (P4), estradiol (E2), and interferon-tau (IFN-τ) treatments. Our knockdown of BCL2L15 by specific shRNA that significantly hampered endometrial receptivity. In the absence of BCL2L15, the signal transducer and activator of transcription (STAT)1 and STAT3 pathway were activated. Additionally, pretreatment with the STAT1 inhibitor, fludarabine, restored the effect of silencing BCL2L15 on the endometrial receptivity, but not the STAT3 inhibitor Stattic. Overall, these results suggested that BCL2L15 is the key regulator of endometrial receptivity in goats, regulating the endometrial receptivity through the STAT1 pathway. Understanding the function of BCL2L15-STAT1 in endometrial receptivity is important to the exploration of new targets for the diagnosis and treatment of early pregnancy failure, and improving the success rates for artificial reproduction.
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Ban Y, Tozaki T, Nakano Y. Association Studies of the GPR103 and BCL2L15 Genes in Autoimmune Thyroid Disease in the Japanese Population. Front Endocrinol (Lausanne) 2016; 7:92. [PMID: 27486433 PMCID: PMC4949216 DOI: 10.3389/fendo.2016.00092] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/26/2016] [Accepted: 07/01/2016] [Indexed: 11/24/2022] Open
Abstract
While the past genome-wide association study (GWAS) for autoimmune thyroid diseases (AITDs) was done in Caucasians, a recent GWAS in Caucasian patients with both AITD and type 1 diabetes [a variant of autoimmune polyglandular syndrome type 3 (APS3v)] identified five non-HLA genes: BCL2L15, MAGI3, PHTF1, PTPN22, and GPR103. The aim of our study was to replicate these associations with AITD in a Japanese population. Since analyzing the rs2476601 single-nucleotide polymorphism (SNP) within the PTPN22 gene revealed no polymorphism in the Japanese, we analyzed four SNPs, rs2358994 (in BCL2L15), rs2153977 (in MAGI3), rs1111695 (in PHTF1), and rs7679475 (in GPR103) genotypes in a case-control study based on 447 Japanese AITD patients [277 Graves' disease (GD) and 170 Hashimoto's thyroiditis (HT) patients] and 225 matched Japanese controls using the high-resolution melting and unlabeled probe methods. Case-control association studies were performed using the χ(2) and Fisher's exact tests with Yates correction. The G allele of rs7679475 (A/G) was associated with HT compared with controls [P = 0.022, odds ratio (OR) = 0.69]. GD showed no significant associations with any SNPs. However, when patients with GD were stratified according to Graves' ophthalmopathy (GO), the G allele of rs2358994 (A/G) was associated with GO vs. controls (P = 0.018, OR = 1.52). These findings suggest that in the Japanese population the GPR103 gene may contribute to the pathogenesis of HT. Moreover, this study demonstrated that the SNP rs2358994 within BCL2L15 gene is associated with GO in the Japanese population.
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Affiliation(s)
- Yoshiyuki Ban
- Third Department of Internal Medicine, Teikyo University Chiba Medical Center, Ichihara, Chiba, Japan
- *Correspondence: Yoshiyuki Ban,
| | - Teruaki Tozaki
- Department of Pharmacogenomics, Showa University School of Pharmacy, Tokyo, Japan
| | - Yasuko Nakano
- Department of Pharmacogenomics, Showa University School of Pharmacy, Tokyo, Japan
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Jain MV, Paczulla AM, Klonisch T, Dimgba FN, Rao SB, Roberg K, Schweizer F, Lengerke C, Davoodpour P, Palicharla VR, Maddika S, Łos M. Interconnections between apoptotic, autophagic and necrotic pathways: implications for cancer therapy development. J Cell Mol Med 2013; 17:12-29. [PMID: 23301705 PMCID: PMC3823134 DOI: 10.1111/jcmm.12001] [Citation(s) in RCA: 179] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2012] [Accepted: 10/24/2012] [Indexed: 02/06/2023] Open
Abstract
The rapid accumulation of knowledge on apoptosis regulation in the 1990s was followed by the development of several experimental anticancer- and anti-ischaemia (stroke or myocardial infarction) drugs. Activation of apoptotic pathways or the removal of cellular apoptotic inhibitors has been suggested to aid cancer therapy and the inhibition of apoptosis was thought to limit ischaemia-induced damage. However, initial clinical studies on apoptosis-modulating drugs led to unexpected results in different clinical conditions and this may have been due to co-effects on non-apoptotic interconnected cell death mechanisms and the ‘yin-yang’ role of autophagy in survival versus cell death. In this review, we extend the analysis of cell death beyond apoptosis. Upon introduction of molecular pathways governing autophagy and necrosis (also called necroptosis or programmed necrosis), we focus on the interconnected character of cell death signals and on the shared cell death processes involving mitochondria (e.g. mitophagy and mitoptosis) and molecular signals playing prominent roles in multiple pathways (e.g. Bcl2-family members and p53). We also briefly highlight stress-induced cell senescence that plays a role not only in organismal ageing but also offers the development of novel anticancer strategies. Finally, we briefly illustrate the interconnected character of cell death forms in clinical settings while discussing irradiation-induced mitotic catastrophe. The signalling pathways are discussed in their relation to cancer biology and treatment approaches.
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Affiliation(s)
- Mayur V Jain
- Department of Clinical & Experimental Medicine, Division of Cell Biology, Integrative Regenerative Medicine Center (IGEN), Linköping University, Linköping, Sweden
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Azmy AM, Abd Allah MA, Mohamed DA. Effect of unilateral obstruction of vas deferens on ipsilateral epididymis of adult albino rats. THE EGYPTIAN JOURNAL OF HISTOLOGY 2012; 35:840-852. [DOI: 10.1097/01.ehx.0000421521.12984.55] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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Affiliation(s)
- D Tischner
- Division of Developmental Immunology, BIOCENTER, Medical University Innsbruck, Innsbruck, Austria
| | - A Villunger
- Division of Developmental Immunology, BIOCENTER, Medical University Innsbruck, Innsbruck, Austria
- Division of Developmental Immunology, Biocenter, Medical University Innsbruck, A-6020, Innsbruck, Austria. Tel: +43 512 9003 70380; Fax: +43 512 9003 73960; E-mail:
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Krutskikh A, De Gendt K, Sharp V, Verhoeven G, Poutanen M, Huhtaniemi I. Targeted inactivation of the androgen receptor gene in murine proximal epididymis causes epithelial hypotrophy and obstructive azoospermia. Endocrinology 2011; 152:689-96. [PMID: 21084446 PMCID: PMC3101806 DOI: 10.1210/en.2010-0768] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
Abstract
The epithelial lining of the epididymal duct expresses the androgen receptor (Ar) along its entire length and undergoes rapid and profound degeneration when androgenic support is withdrawn. However, experiments involving orchidectomy with systemic testosterone replacement, and testicular efferent duct ligation, have indicated that structural and functional integrity of the initial segment cannot be maintained by circulating androgen alone, leaving the role of androgen in this epididymal zone unclear. We addressed this question in a mouse model with intact testicular output and selective Ar inactivation in the proximal epididymis by creating double-transgenic males carrying a conditional Ar(loxP) allele and expressing Cre recombinase under the promoter of Rnase10, a gene specifically expressed in proximal epididymis. At 20-25 d of life, on the onset of Rnase10 expression, Ar became selectively inactivated in the principal cells of proximal epididymis, resulting in epithelial hypoplasia and hypotrophy. Upon the subsequent onset of spermiation, epididymal obstruction ensued, with the consequent development of spermatic granulomata, back pressure-induced atrophy of the seminiferous epithelium, orchitis, and fibrosis of the testicular parenchyma. Consistent with these findings, the mice were infertile. When the effect of Ar knockout on gene expression in the proximal epididymis was compared with that of efferent duct ligation and orchidectomy, we identified genes specifically regulated by androgen, testicular efferent fluid, and both. Our findings demonstrate that the development and function of the epididymal initial segment is critically dependent on direct androgen regulation. The phenotype of the produced knockout mouse provides a novel model for obstructive azoospermia.
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Affiliation(s)
- Anton Krutskikh
- Department of Surgery and Cancer, Imperial College London, London W12 0NN, United Kingdom
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Ding NZ, He M, He CQ, Hu JS, Teng J, Chen J. Expression and regulation of FAAP in the mouse epididymis. Endocrine 2010; 38:188-93. [PMID: 21046479 DOI: 10.1007/s12020-010-9371-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/21/2010] [Accepted: 06/29/2010] [Indexed: 04/17/2023]
Abstract
The focal adhesion-associated protein (FAAP), encoded by the murine D10Wsu52e gene, is named as involved in modulating cell adhesion dynamics. It is a highly conserved and ubiquitously expressed protein, and its human homologue HSPC117 has been identified in many protein complexes. However, the expression and regulation of the FAAP gene have not yet been well characterized. Herein, we demonstrate that FAAP mRNA and protein expression are highly regionalized in the mouse epididymis with predominant enrichment in the initial segment. During sexual maturation, FAAP mRNA is always expressed in the caput epididymides. Castration causes rapid and significant decrease of FAAP mRNA abundance within the initial segment, whereas testosterone replacement fails to reverse the regression. Unilateral orchidectomy and efferent duct ligation studies further validate that expression of the FAAP mRNA is highly dependent on the presence of luminal testicular factors rather than testosterone. Furthermore, FAAP expression in the initial segment is not affected by cryptorchism.
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Affiliation(s)
- Nai-Zheng Ding
- The Key Laboratory of Cell Proliferation and Differentiation of Ministry of Education and The State Key Laboratory of Bio-membrane and Membrane Bio-engineering, College of Life Sciences, Peking University, Beijing, 100871, China
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Ozören N, Inohara N, Núñez G. A putative role for human BFK in DNA damage-induced apoptosis. Biotechnol J 2009; 4:1046-54. [PMID: 19557800 DOI: 10.1002/biot.200900091] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Human BFK (BCL-2 family kin) is a novel pro-apoptotic BCL-2 family member specifically expressed in the gastrointestinal tract. BFK has the characteristic BH3 domain, which was shown to be essential for the apoptosis-inducing activity of pro-apoptotic BCL-2 family members. When overexpressed, BFK interacts with BCL-XL and BCL-W but not BCL-2 or BAD in co-immunoprecipitations studies. We find that BFK exhibits striking similarity to BID in the way it is activated through cleavage during apoptosis. The endogenous and cleaved versions of BFK are readily recognized by the rabbit and mouse sera raised against human BFK. An ideal caspase 3 or 7 target sequence, DEVD (amino acids 38-41), is evident N-terminal to the BH3 domain. A recombinant version of the protein containing all residues downstream of the putative caspase cleavage site induces apoptosis in human colon cancer cells, HCT116, and in wild-type mouse embryonic fibroblasts (MEFs), which can be reversed by co-expression of BCL-XL or BCL-W. BFK becomes activated through caspase-dependent cleavage during DNA damage-induced apoptosis. The cleaved form of the protein is dependent on the presence of BAX or BAK for its ability to induce apoptosis, since BAX(-/-)-BAK(-/-) double-knockout MEFs are completely resistant to BFK-induced apoptosis.
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Affiliation(s)
- Nesrin Ozören
- Department of Molecular Biology and Genetics, Apoptosis and Cancer Immunology Laboratory (AKIL), Boğaziçi University, Istanbul, Turkey.
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Damdimopoulos AE, Spyrou G, Gustafsson JA. Ligands differentially modify the nuclear mobility of estrogen receptors alpha and beta. Endocrinology 2008; 149:339-45. [PMID: 17884941 DOI: 10.1210/en.2007-0198] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Signaling of nuclear receptors depends on the structure of their ligands, with different ligands eliciting different responses. In this study using a comparative analysis, an array of ligands was examined for effects on estrogen receptor alpha (ERalpha) and ERbeta mobility. Our results indicated that these two receptors share similarities in response to some ligands but differ significantly in response to others. Our results suggest that for ERalpha, ligands can be classified into three distinct groups: 1) ligands that do not affect the mobility of the receptor, 2) ligands that cause a moderate effect, and 3) ligands that strongly impact mobility of ERalpha. Interestingly, we found that for ERbeta such a classification was not possible because ERbeta ligands caused a wider spectrum of responses. One of the main differences between the two receptors was the response toward the antiestrogens ICI and raloxifene, which was not attributable to differential subnuclear localization or different conformations of helix 12 in the C-terminal domain. We showed that both of these ligands caused a robust phenotype, leading to an almost total immobilization of ERalpha, whereas ERbeta retained its mobility; we provide evidence that the mobility of the two receptors depends upon the function of the proteasome machinery. This novel finding that ERbeta retains its mobility in the presence of antiestrogens could be important for its ability to regulate genes that do not contain classic estrogen response element sites and do not require DNA binding and could be used in the investigation of ligands that show ER subtype specificity.
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