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Wang Y, Jiang P, Xia F, Bai Q, Zhang X. Transcriptional and physiological profiles reveal the respiratory, antioxidant and metabolic adaption to intermittent hypoxia in the clam Tegillarca granosa. Comp Biochem Physiol Part D Genomics Proteomics 2024; 50:101215. [PMID: 38359602 DOI: 10.1016/j.cbd.2024.101215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 02/08/2024] [Accepted: 02/08/2024] [Indexed: 02/17/2024]
Abstract
Tegillarca granosa can survive intermittent hypoxia for a long-term. We used the clam T. granosa as model to investigate the respiratory, antioxidant and metabolic responses to consecutive hypoxia-reoxygenation (H/R) stress at both physiological and transcriptional levels. The results showed that the clams were able to rapidly regulate oxygen consumption and ammonia excretion during H/R stress, and alleviate oxidative stress during the second-time challenge. The clams also efficiently balanced energy metabolism through the rapid conversion and decomposition of glycogen. According to the transcriptome profile, KEGG pathways of starch and sucrose metabolism, ECM-receptor interaction, and protein processing in endoplasmic reticulum were significantly enriched in H group (the second-time 24 h hypoxia exposure), while pathways associated with lipid metabolism were significantly enriched in h group (the first-time 24 h hypoxia exposure). DEGs including hspa5, birc2/3, and map3k5 might play important roles in alleviating endoplasmic reticulum stress, cpla2 and pla2g16 might mitigate oxidative stress by adjusting the composition of cellular membrane. In conclusions, our findings suggest that rapid adjustment of oxygen consumption, ammonia metabolism, glycogen metabolism, and the ability to adjust the composition of the membrane lipid may be critical for T. granosa in maintaining energy homeostasis and reducing oxidative damage during intermittent H/R exposure. This study preliminarily clarified the response of T. granosa to intermittent hypoxia stress on the physiological and molecular levels, offering insights into the hypoxia-tolerant mechanisms in this species and providing a reference for the following study on the other hypoxic-tolerant species.
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Affiliation(s)
- Yihang Wang
- Fishery College, Zhejiang Ocean University, Zhoushan 316022, China
| | - Puyuan Jiang
- Fishery College, Zhejiang Ocean University, Zhoushan 316022, China
| | - Feiyu Xia
- Fishery College, Zhejiang Ocean University, Zhoushan 316022, China
| | - Qingqing Bai
- The Government of Guanhaiwei Town, Cixi 315315, China
| | - Xiumei Zhang
- Fishery College, Zhejiang Ocean University, Zhoushan 316022, China.
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Kim J, Kim HJ, Choi E, Cho M, Choi S, Jeon MA, Lee JS, Park H. Expansion of the HSP70 gene family in Tegillarca granosa and expression profiles in response to zinc toxicity. Cell Stress Chaperones 2024; 29:97-112. [PMID: 38272254 PMCID: PMC10939072 DOI: 10.1016/j.cstres.2024.01.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Revised: 01/08/2024] [Accepted: 01/20/2024] [Indexed: 01/27/2024] Open
Abstract
Zinc (Zn) is an essential micronutrient in organisms and an abundant element in the Earth's crust. Trace amounts of Zn released from natural sources can enter aquatic ecosystems through weathering and erosion. Zn accumulates in organisms, and when its intracellular concentration exceeds a certain level, it can induce oxidative stress and trigger oxidative stress-mediated heat shock protein (HSP) modulation. HSP70 is the most evolutionarily conserved among the HSP families. Despite extensive research on HSP70 genes in bivalves, the HSP70 gene family of Tegillarca granosa is still poorly characterized. We identified 65 HSP70 genes belonging to 6 families in the T. granosa genome, with 50 HSPa12 and 11 HSPa B2 genes highly expanded. On chromosome 11, 39 HSP70 (60%) genes were identified, and the HSPa12A genes were highly duplicated. A total of 527 and 538 differentially expressed genes were identified in the gills and mantle based on Zn exposure, respectively. The Gene Ontology of cellular anatomical entities was significantly enriched with upregulated differentially expressed genes in the gills and mantle. Eight of the 11 HSPa B2 genes were upregulated in both tissues. Most of the genes identified in both tissues were involved in "protein homeostasis" and "inhibition of apoptosis," which are associated with the HSP70 family's resistance to extrinsic and intrinsic stress. Hence, this study identified that the HSP70 gene family plays a vital role in the adaptation of aquatic organisms to heavy metal (e.g., Zn) stress in contaminated environments by compiling the different physiological responses to preserve homeostasis.
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Affiliation(s)
- Jinmu Kim
- Division of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul, Korea
| | - Hyeon Jin Kim
- Department of Aqualife Medicine, Chonnam National University, Yeosu, Korea
| | - Eunkyung Choi
- Division of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul, Korea
| | - Minjoo Cho
- Division of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul, Korea
| | - Soyun Choi
- Division of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul, Korea
| | - Mi Ae Jeon
- Aquaculture Management Division, South Sea Fisheries Research Institute, NIFS, Yeosu, Korea
| | - Jung Sick Lee
- Department of Aqualife Medicine, Chonnam National University, Yeosu, Korea.
| | - Hyun Park
- Division of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul, Korea.
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Liu H, Ding S, Xu Y, Lin J, Jiang K, Zha S, Bao Y. NO production of granulocytes associated with antibacterial immune response in Tegillarca granosa. Fish Shellfish Immunol 2024; 145:109332. [PMID: 38142829 DOI: 10.1016/j.fsi.2023.109332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Revised: 12/19/2023] [Accepted: 12/21/2023] [Indexed: 12/26/2023]
Abstract
Nitric oxide (NO) is a signaling molecule and immune effector produced by the nitric oxide synthases (NOS), which involved to various physiological processes of animals. In marine bivalves, hemocytes play important roles in antimicrobial innate immune response. Although hemocyte-derived NO has been detected in several bivalves, the immune function of hemocyte-derived NO is not well understood. Here, we investigated the antibacterial response of hemocyte-derived NO in the blood clam Tegillarca granosa. Two types of hemocytes including erythrocytes and granulocytes were isolated by Percoll density gradient centrifugation, their NO production and TgNOS expression level were analyzed. The results showed that NO was mainly produced in granulocytes and almost no detected in erythrocytes. The granulocytes showed significantly higher NO level and TgNOS expression level than the erythrocytes. And the TgNOS expression level was significantly increased in granulocytes after Vibro parahemolyticus challenge. In addition, the NO donor sodium nitroprusside (SNP) significantly increased the NO production of hemocytes to kill pathogenic bacteria. In summary, the results revealed that granulocytes-derived NO play vital roles in the antimicrobial immune response of the blood clam.
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Affiliation(s)
- Hongxing Liu
- Key Laboratory of Aquatic Germplasm Resource of Zhejiang, College of Biological & Environmental Sciences, Zhejiang Wanli University, Ningbo, 315100, China; Ninghai Institute of Mariculture Breeding and Seed Industry, Zhejiang Wanli University, Ninghai, 315604, China
| | - Sixuan Ding
- Key Laboratory of Aquatic Germplasm Resource of Zhejiang, College of Biological & Environmental Sciences, Zhejiang Wanli University, Ningbo, 315100, China
| | - Yingbin Xu
- Key Laboratory of Aquatic Germplasm Resource of Zhejiang, College of Biological & Environmental Sciences, Zhejiang Wanli University, Ningbo, 315100, China
| | - Jie Lin
- Key Laboratory of Aquatic Germplasm Resource of Zhejiang, College of Biological & Environmental Sciences, Zhejiang Wanli University, Ningbo, 315100, China
| | - Kaiqi Jiang
- Key Laboratory of Aquatic Germplasm Resource of Zhejiang, College of Biological & Environmental Sciences, Zhejiang Wanli University, Ningbo, 315100, China
| | - Shanjie Zha
- Key Laboratory of Aquatic Germplasm Resource of Zhejiang, College of Biological & Environmental Sciences, Zhejiang Wanli University, Ningbo, 315100, China; Ninghai Institute of Mariculture Breeding and Seed Industry, Zhejiang Wanli University, Ninghai, 315604, China
| | - Yongbo Bao
- Key Laboratory of Aquatic Germplasm Resource of Zhejiang, College of Biological & Environmental Sciences, Zhejiang Wanli University, Ningbo, 315100, China; Ninghai Institute of Mariculture Breeding and Seed Industry, Zhejiang Wanli University, Ninghai, 315604, China.
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Cheng H, Peng Z, Zhao C, Jin H, Bao Y, Liu M. The transcriptomic and biochemical responses of blood clams ( Tegillarca granosa) to prolonged intermittent hypoxia. Comp Biochem Physiol B Biochem Mol Biol 2024; 270:110923. [PMID: 37952637 DOI: 10.1016/j.cbpb.2023.110923] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Revised: 11/07/2023] [Accepted: 11/09/2023] [Indexed: 11/14/2023]
Abstract
The blood clam (Tegillarca granosa), a marine bivalve of ecological and economic significance, often encounters intermittent hypoxia in mudflats and aquatic environments. To study the response of blood clam foot to prolonged intermittent hypoxia, the clams were exposed to intermittent hypoxia conditions (0.5 mg/L dissolved oxygen, with a 12-h interval) for 31 days. Initially, transcriptomic analysis was performed, uncovering a total of 698 differentially expressed genes (DEGs), with 236 upregulated and 462 downregulated. These genes show enrichments in signaling pathways related to glucose metabolism, sugar synthesis and responses to oxidative stress. Furthermore, the activity of the enzyme glutathione peroxidase (GPx) and the levels of gpx1 mRNA showed gradual increases, reaching their peak on the 13th day of intermittent hypoxia exposure. This observation suggests an indirect protective role of GPx against oxidative stress. The results of this study make a significantly contribute to our broader comprehensive of the physiological, biochemical responses, and molecular reactions governing the organization of foot muscle tissue in marine bivalves exposed to prolonged intermittent hypoxic conditions.
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Affiliation(s)
- Haoxiang Cheng
- Key Laboratory of Aquatic Germplasm Resource of Zhejiang, College of Biological and Environmental Sciences, Zhejiang Wanli University, Ningbo, Zhejiang 315100, China
| | - Zhilan Peng
- Key Laboratory of Aquatic Germplasm Resource of Zhejiang, College of Biological and Environmental Sciences, Zhejiang Wanli University, Ningbo, Zhejiang 315100, China; Ninghai Institute of Mariculture Breeding and Seed Industry, Zhejiang Wanli University, Ninghai 315604, China
| | - Chenxi Zhao
- Ninghai Institute of Mariculture Breeding and Seed Industry, Zhejiang Wanli University, Ninghai 315604, China
| | - Hongyu Jin
- Key Laboratory of Aquatic Germplasm Resource of Zhejiang, College of Biological and Environmental Sciences, Zhejiang Wanli University, Ningbo, Zhejiang 315100, China
| | - Yongbo Bao
- Key Laboratory of Aquatic Germplasm Resource of Zhejiang, College of Biological and Environmental Sciences, Zhejiang Wanli University, Ningbo, Zhejiang 315100, China; Ninghai Institute of Mariculture Breeding and Seed Industry, Zhejiang Wanli University, Ninghai 315604, China.
| | - Minhai Liu
- Key Laboratory of Aquatic Germplasm Resource of Zhejiang, College of Biological and Environmental Sciences, Zhejiang Wanli University, Ningbo, Zhejiang 315100, China; Ninghai Institute of Mariculture Breeding and Seed Industry, Zhejiang Wanli University, Ninghai 315604, China.
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Yang Z, Bao L, Shen Y, Wang J, Su D, Liu H, Bao Y. Isolation and functional identification of immune cells in hemolymph of blood clams Tegillarca granosa. Fish Shellfish Immunol 2024; 144:109320. [PMID: 38122950 DOI: 10.1016/j.fsi.2023.109320] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Revised: 12/15/2023] [Accepted: 12/18/2023] [Indexed: 12/23/2023]
Abstract
Blood clam Tegillarca granosa is a type of economically cultivated bivalve mollusk with red blood, and it primarily relies on hemocytes in its hemolymph for immune defense. However, there are currently no reports on the isolation and identification of immune cells in T. granosa, which hinders our understanding of their immune defense. In this study, we employed single-cell transcriptome sequencing (scRNA-seq) to visualize the molecular profile of hemocytes in T. granosa. Based on differential expression of immune genes and hemoglobin genes, hemocytes can be molecularly classified into immune cells and erythrocytes. In addition, we separated immune cells using density gradient centrifugation and demonstrated their stronger phagocytic capacity compared to erythrocytes, as well as higher levels of ROS and NO. In summary, our experiments involved the isolation and functional identification of immune cells in hemolymph of T. granosa. This study will provide valuable insights into the innate immune system of red-blood mollusks and further deepen the immunological research of mollusks.
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Affiliation(s)
- Zexin Yang
- Key Laboratory of Aquatic Germplasm Resource of Zhejiang, College of Biological & Environmental Sciences, Zhejiang Wanli University, Ningbo, 315100, China
| | - Lingxing Bao
- Key Laboratory of Aquatic Germplasm Resource of Zhejiang, College of Biological & Environmental Sciences, Zhejiang Wanli University, Ningbo, 315100, China
| | - Yiru Shen
- Key Laboratory of Aquatic Germplasm Resource of Zhejiang, College of Biological & Environmental Sciences, Zhejiang Wanli University, Ningbo, 315100, China
| | - Jiacheng Wang
- Key Laboratory of Aquatic Germplasm Resource of Zhejiang, College of Biological & Environmental Sciences, Zhejiang Wanli University, Ningbo, 315100, China
| | - Dan Su
- Key Laboratory of Aquatic Germplasm Resource of Zhejiang, College of Biological & Environmental Sciences, Zhejiang Wanli University, Ningbo, 315100, China
| | - Hongxin Liu
- Key Laboratory of Aquatic Germplasm Resource of Zhejiang, College of Biological & Environmental Sciences, Zhejiang Wanli University, Ningbo, 315100, China.
| | - Yongbo Bao
- Key Laboratory of Aquatic Germplasm Resource of Zhejiang, College of Biological & Environmental Sciences, Zhejiang Wanli University, Ningbo, 315100, China; Ninghai Institute of Mariculture Breeding and Seed Industry, Zhejiang Wanli University, Ninghai, 315604, China.
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Kim T, Ri S, Ju K, Shi W, Zhou W, Yu Y, Ri S, Ri H, Yun S, Ri J, Liu G. A C-type lectin with a single carbohydrate-recognition domain (CRD) containing unique QPN/WDD motifs from Tegillarca granosa is involved in the innate immune defense. Fish Shellfish Immunol 2023; 142:109093. [PMID: 37722437 DOI: 10.1016/j.fsi.2023.109093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Revised: 09/12/2023] [Accepted: 09/16/2023] [Indexed: 09/20/2023]
Abstract
C-type lectins (CTLs), a superfamily of Ca2+-dependent carbohydrate-recognition proteins, serve as pattern recognition receptors (PRRs) in the immune response of many species. However, little is currently known about the CTLs of the commercially and ecologically important bivalve species, blood clam (Tegillarca granosa). In this study, a CTL (designated as TgCTL-1) with a single carbohydrate-recognition domain (CRD) containing unique QPN/WDD motifs was identified in the blood clam through transcriptome and whole-genome searching. Multiple alignment and phylogenetic analysis strongly suggested that TgCTL-1 was a new member of the CTL superfamily. Expression analysis demonstrated that TgCTL-1 was highly expressed in the hemocytes and visceral mass of the clam under normal condition. In addition, the expression of TgCTL-1 was shown to be significantly up-regulated upon pathogen challenge. Moreover, the recombinant TgCTL-1 (rTgCTL-1) displayed agglutinating and binding activities against both the gram-positive and gram-negative bacteria tested in a Ca2+-dependent manner. Furthermore, it was found that the in vitro phagocytic activity of hemocytes was significantly enhanced by rTgCTL-1. In general, our results showed that TgCTL-1 was an inducible acute-phase secretory protein, playing crucial roles in recognizing, agglutinating, and binding to pathogenic bacteria as well as modulating phagocytic activity of hemocytes in the innate immune defense of blood clam.
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Affiliation(s)
- Tongchol Kim
- College of Animal Sciences, Zhejiang University, Hangzhou, 310058, PR China; College of Life Science, Kim Hyong Jik University of Education, Pyongyang, 99903, North Korea
| | - Sanghyok Ri
- College of Animal Sciences, Zhejiang University, Hangzhou, 310058, PR China; College of Life Science, Kim Hyong Jik University of Education, Pyongyang, 99903, North Korea
| | - Kwangjin Ju
- College of Animal Sciences, Zhejiang University, Hangzhou, 310058, PR China; College of Aquaculture, Wonsan Fisheries University, Wonsan, 99903, North Korea
| | - Wei Shi
- College of Animal Sciences, Zhejiang University, Hangzhou, 310058, PR China
| | - Weishang Zhou
- College of Animal Sciences, Zhejiang University, Hangzhou, 310058, PR China
| | - Yihan Yu
- College of Animal Sciences, Zhejiang University, Hangzhou, 310058, PR China
| | - Sangryong Ri
- College of Life Science, Kim Hyong Jik University of Education, Pyongyang, 99903, North Korea
| | - Hyoksong Ri
- College of Life Science, Kim Hyong Jik University of Education, Pyongyang, 99903, North Korea
| | - Songsu Yun
- College of Life Science, Kim Hyong Jik University of Education, Pyongyang, 99903, North Korea
| | - Junjin Ri
- College of Life Science, Kim Hyong Jik University of Education, Pyongyang, 99903, North Korea
| | - Guangxu Liu
- College of Animal Sciences, Zhejiang University, Hangzhou, 310058, PR China.
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Cho YG, Kim JH, Choi HJ, Jang GI, Oh YK, Lee SJ, Hong SY, Kwon MG, Choi KS. First report of Perkinsus olseni infections in blood cockles Tegillarca granosa on the south coast of Korea. Dis Aquat Organ 2023; 156:39-45. [PMID: 38078797 DOI: 10.3354/dao03758] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2023]
Abstract
The protozoan parasite Perkinsus olseni has become a focus of attention since it has been responsible for mass mortalities and economic losses in a wide range of bivalve hosts globally. The P. olseni host range along the south coast of Korea may extend beyond what was previously understood, and blood cockles in the Family Arcidae are also suggested to be potential hosts of P. olseni. In the present study, we applied histology and molecular techniques to identify Perkinsus sp. infections in the blood cockles Tegillarca granosa, which have been commercially exploited on the south coast of Korea for several decades. Histology and molecular techniques, including genus-specific immunofluorescence assay, species-specific fluorescence in situ hybridization, and phylogeny based on the ribosomal DNA internal transcribed spacer region revealed that T. granosa is infected by P. olseni, although the prevalence was low (0.5%). Histology revealed massive hemocyte infiltrations in the mantle, gill, and digestive gland connective tissues, indicating that the infection exerts negative impacts on the host cockles.
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Affiliation(s)
- Young-Ghan Cho
- Department of Marine Life Science (BK21 FOUR) and Marine Science Institute, Jeju National University, 102 Jejudaehakno, Jeju 63243, Republic of Korea
- Tidal Flat Research Center, National Institute of Fisheries and Science, Gunsan 54001, Republic of Korea
| | - Jeong-Hwa Kim
- Department of Marine Life Science (BK21 FOUR) and Marine Science Institute, Jeju National University, 102 Jejudaehakno, Jeju 63243, Republic of Korea
| | - Hee Jung Choi
- Aquatic Disease Control Division, National Fishery Products Quality Management Service, Busan 46083, Republic of Korea
| | - Gwang-Il Jang
- Aquatic Disease Control Division, National Fishery Products Quality Management Service, Busan 46083, Republic of Korea
| | - Yun-Kyeong Oh
- Aquatic Disease Control Division, National Fishery Products Quality Management Service, Busan 46083, Republic of Korea
| | - Soon-Jeong Lee
- Aquatic Disease Control Division, National Fishery Products Quality Management Service, Busan 46083, Republic of Korea
| | - Sung-Youl Hong
- Aquatic Disease Control Division, National Fishery Products Quality Management Service, Busan 46083, Republic of Korea
| | - Mun-Gyeong Kwon
- Aquatic Disease Control Division, National Fishery Products Quality Management Service, Busan 46083, Republic of Korea
| | - Kwang-Sik Choi
- Department of Marine Life Science (BK21 FOUR) and Marine Science Institute, Jeju National University, 102 Jejudaehakno, Jeju 63243, Republic of Korea
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Yang Y, Wang M, Yu X, Wei J, Wu S, Wu C, Chang AK, Ying X. Assessment of toxic metal pollution in Yueqing Bay and the extent of metal-induced oxidative stress in Tegillarca granosa raised in this water. Mar Pollut Bull 2023; 194:115444. [PMID: 37647698 DOI: 10.1016/j.marpolbul.2023.115444] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2023] [Revised: 08/17/2023] [Accepted: 08/20/2023] [Indexed: 09/01/2023]
Abstract
Yueqing Bay is an important economic shellfish culture zone in Zhejiang Province, China. However, increased pollution in the water caused by toxic metals has led to the bioaccumulation of toxic metals in cockles such as Tegillarca granosa, and the consequence of toxic metal-associated toxicity in these animals. This study aimed to assess the concentration of toxic metals in the water and sediment in four different sites (Baisha, Qingjiang, Nanyue, and Wengyang) within Yueqing Bay and to evaluate the extent of metal bioaccumulation in T. granosa raised in the aquaculture farms located within the four sites, as well as the changes in biomarkers in T. granosa in response to the metals. The assessment was carried out at two different times of the year, January and July. The water and sediment samples taken from the aquaculture farms in Baisha (S1), Qingjiang (S2) and Nanyue (S3) were found to have a comprehensive toxic metal pollution index (Pc) <1, indicating that these farms were not polluted. However, the water and sediment samples taken from the aquaculture farm in Wengyang (S4) had a Pc between 1 and 2, indicating mild toxic metal pollution. The edible risk assessments (HQ) of T. granosa in all four farms were <1, and therefore, these cockles could be considered safe for human consumption. The toxic metal enrichment in T. granosa exhibited a strong correlation with the toxic metal content in the sediment. In all four farms, CAT and SOD activity levels in the visceral mass of T. granosa were higher than those found in the foot, and a significantly higher level of CAT activity was detected in July compared with January. Similarly, MDA and H2O2 contents in the visceral mass were also higher in July than in January. Tegillarca granosa individuals taken from S4 and S3 farms exhibited significantly higher levels of metallothionein (MT) mRNA and MDA compared with individuals from S1 and S2 farms. Furthermore, the levels of MDA and MT mRNA showed significant positive correlations with Cd, Cr, Hg, and Cu. Elevation of lipid peroxidation in these cockles coincided with increasing levels of endogenous antioxidants. The visceral mass of T. granosa and its MDA level could be used as a tissue indicator and a biochemical marker, respectively, for detecting toxic metal pollution. MT mRNA might also be used as a molecular marker of toxic metal pollution. The integrated biomarker response version 2 (IBRv2) values of the four aquaculture farms in Yueqing Bay showed the order S4 > S3 > S2 > S1, indicating that S4 had the most serious metal-induced stress. Furthermore, the IBRv2 values correlated with the Nemerow composite index (Pc) for all the cockles examined. Thus, as far as the contamination of aquaculture farms in Yueqing Bay by toxic metals is concerned, the aquaculture farm in Wengyang (S4) was mildly contaminated by toxic metals. However, the contamination was relatively low, presenting a low risk for the local population of T. granosa.
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Affiliation(s)
- Yuqing Yang
- College of Life and Environmental Sciences, Wenzhou University, Wenzhou, Zhejiang 325035, China
| | - Mengci Wang
- College of Life and Environmental Sciences, Wenzhou University, Wenzhou, Zhejiang 325035, China
| | - Xinyu Yu
- College of Life and Environmental Sciences, Wenzhou University, Wenzhou, Zhejiang 325035, China
| | - Jinyan Wei
- College of Life and Environmental Sciences, Wenzhou University, Wenzhou, Zhejiang 325035, China
| | - Shuwen Wu
- College of Life and Environmental Sciences, Wenzhou University, Wenzhou, Zhejiang 325035, China
| | - Chenghui Wu
- College of Life and Environmental Sciences, Wenzhou University, Wenzhou, Zhejiang 325035, China
| | - Alan Kueichieh Chang
- College of Life and Environmental Sciences, Wenzhou University, Wenzhou, Zhejiang 325035, China
| | - Xueping Ying
- College of Life and Environmental Sciences, Wenzhou University, Wenzhou, Zhejiang 325035, China; National and Local Joint Engineering Research Center of Ecological Treatment Technology for Urban Water Pollution, Wenzhou University, 325035 Wenzhou, China.
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Lee GY, Yang SM, Kim HY. Development and intralaboratory validation of three Arcidae species using a multiplex polymerase chain reaction assay combined with capillary electrophoresis. Food Sci Biotechnol 2023; 32:1395-1404. [PMID: 37457413 PMCID: PMC10348964 DOI: 10.1007/s10068-023-01269-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Revised: 12/20/2022] [Accepted: 01/25/2023] [Indexed: 02/11/2023] Open
Abstract
Recently, various commercial ark shell products were being sold, and in the case of processed foods, the loss of morphological traits makes species identification visually challenging, which can lead to seafood fraud. Therefore, a multiplex polymerase chain reaction (PCR) assay was developed to simultaneously identify three ark shells. The specific PCR amplicon sizes of the generated species-specific primer pairs were observed to be 99 bp for Anadara kagoshimensis, 148 bp for Anadara broughtonii, and 207 bp for Tegillarca granosa. Specificity was confirmed for 17 fish and shellfish, and only the target was amplified without cross-reactivity. The detection limit for the multiplex PCR assay was 1 pg. Furthermore, 31 commercial products were evaluated to assess the developed assay's applicability. Therefore, the analytical approach used in this study can rapidly and accurately identify ark shells in commercial food, and may be used as an authentication tool in the seafood industry. Supplementary Information The online version contains supplementary material available at 10.1007/s10068-023-01269-2.
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Affiliation(s)
- Ga-Young Lee
- Institute of Life Sciences & Resources and Department of Food Science & Biotechnology, Kyung Hee University, Yongin, 17104 Republic of Korea
| | - Seung-Min Yang
- Institute of Life Sciences & Resources and Department of Food Science & Biotechnology, Kyung Hee University, Yongin, 17104 Republic of Korea
| | - Hae-Yeong Kim
- Institute of Life Sciences & Resources and Department of Food Science & Biotechnology, Kyung Hee University, Yongin, 17104 Republic of Korea
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Yuan W, Liu H, Zhang W, Lin Z, Li C, Bao Y. Identificaiton and characterization of a novel hemoglobin gene (Tgr-HbIII) from blood clam Tegillarca granosa. Gene 2023; 862:147256. [PMID: 36754178 DOI: 10.1016/j.gene.2023.147256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2022] [Revised: 01/19/2023] [Accepted: 02/02/2023] [Indexed: 02/08/2023]
Abstract
Hemoglobin (Hb) is the major protein component of red blood cells (hemocytes) of the blood clam Tegillarca granosa. Three T. granosa hemoglobin genes have been mentioned in the literature, designated Tgr-HbI, Tgr-HbIIA and Tgr-HbIIB. Previously, our group identified another novel gene, Tgr-HbIII, in the Hb cluster of the chromosome-level genome but the issue of whether this Hb gene expresses functional protein remains unclear. In the current study, phylogenetic analysis revealed that Tgr-HbIII resembles an ancient Hb gene. Sequence alignment and three-dimensional structural modeling results showed that Tgr-HbIII does not bind heme due to the completely different structure at amino acid position 96-100 and replacement of the N100 residue in known Tgr-Hbs with Q100, what causes loss of a single hydrogen bond linking heme with the globin fold. Interface prediction data suggest that Tgr-HbIII forms a homodimer (ΔG = -5.6 kcal/mol) with a similar conformation to the Tgr-HbI homodimer (ΔG = -3.5 kcal/mol). In adult T. granosa, mRNA expression of Tgr-HbIII was lower than that of Tgr-HbIIA and Tgr-HbIIB (up to 100 × ), but comparable to that of Tgr-HbI. Notably, protein expression of Tgr-HbIII was extremely low. Single-cell RNA sequencing analysis of Hb expression showed that all adult hemocytes expressed Tgr-HbI, Tgr-HbIIA and Tgr-HbIIB, while only 43 % (3872 of 8978) expressed Tgr-HbIII. Based on the collective data, we speculate that Tgr-HbIII carried oxygen prior to mutation of N100 to Q100 and subsequently evolved into a known functional remnant of Hb with an adequate mRNA/low protein expression profile. The current study provides a foundation for further research on the origin, evolution and function of molluscan Hbs.
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Yu Y, Tian D, Ri S, Kim T, Ju K, Zhang J, Teng S, Zhang W, Shi W, Liu G. Gamma-aminobutyric acid (GABA) suppresses hemocyte phagocytosis by binding to GABA receptors and modulating corresponding downstream pathways in blood clam, Tegillarca granosa. Fish Shellfish Immunol 2023; 134:108608. [PMID: 36764632 DOI: 10.1016/j.fsi.2023.108608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Revised: 02/06/2023] [Accepted: 02/07/2023] [Indexed: 06/18/2023]
Abstract
Although accumulating data demonstrated that gamma-aminobutyric acid (GABA), an inhibitory neurotransmitter, plays an important regulatory role in immunity of vertebrates, its immunomodulatory function and mechanisms of action remain poorly understood in invertebrates such as bivalve mollusks. In this study, the effect of GABA on phagocytic activity of hemocytes was evaluated in a commercial bivalve species, Tegillarca granosa. Furthermore, the potential regulatory mechanism underpinning was investigated by assessing potential downstream targets. Data obtained demonstrated that in vitro GABA incubation significantly constrained the phagocytic activity of hemocytes. In addition, the GABA-induced suppression of phagocytosis was markedly relieved by blocking of GABAA and GABAB receptors using corresponding antagonists. Hemocytes incubated with lipopolysaccharides (LPS) and GABA had significant higher K+-Cl- cotransporter 2 (KCC2) content compared to the control. In addition, GABA treatment led to an elevation in intracellular Cl-, which was shown to be leveled down to normal by blocking the ionotropic GABAA receptor. Treatment with GABAA receptor antagonist also rescued the suppression of GABAA receptor-associated protein (GABARAP), KCC, TNF receptor associated factor 6 (TRAF6), inhibitor of nuclear factor kappa-B kinase subunit alpha (IKKα), and nuclear factor kappa B subunit 1 (NFκB) caused by GABA incubation. Furthermore, incubation of hemocytes with GABA resulted in a decrease in cAMP content, an increase in intracellular Ca2+, and downregulation of cAMP-dependent protein kinase (PKA), calmodulin kinase II (CAMK2), calmodulin (CaM), calcineurin (CaN), TRAF6, IKKα, and NFκB. All these above-mentioned changes were found to be evidently relieved by blocking the metabotropic G-protein-coupled GABAB receptor. Our results suggest GABA may play an inhibitory role on phagocytosis through binding to both GABAA and GABAB receptors, and subsequently regulating corresponding downstream pathways in bivalve invertebrates.
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Affiliation(s)
- Yihan Yu
- College of Animal Sciences, Zhejiang University, Hangzhou, 310058, PR China
| | - Dandan Tian
- College of Animal Sciences, Zhejiang University, Hangzhou, 310058, PR China
| | - Sanghyok Ri
- College of Animal Sciences, Zhejiang University, Hangzhou, 310058, PR China; College of Life Science, Kim Hyong Jik University of Education, Pyongyang, 99903, North Korea
| | - Tongchol Kim
- College of Animal Sciences, Zhejiang University, Hangzhou, 310058, PR China; College of Life Science, Kim Hyong Jik University of Education, Pyongyang, 99903, North Korea
| | - Kwangjin Ju
- College of Animal Sciences, Zhejiang University, Hangzhou, 310058, PR China; College of Aquaculture, Wonsan Fisheries University, Wonsan, 999093, North Korea
| | - Jiongming Zhang
- Zhejiang Mariculture Research Institute, Wenzhou, 325005, PR China
| | | | - Weixia Zhang
- College of Animal Sciences, Zhejiang University, Hangzhou, 310058, PR China
| | - Wei Shi
- College of Animal Sciences, Zhejiang University, Hangzhou, 310058, PR China
| | - Guangxu Liu
- College of Animal Sciences, Zhejiang University, Hangzhou, 310058, PR China.
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Huang H, Chen S, Xu Z, Wu Y, Mei L, Pan Y, Yan X, Zhou C. Comparative metabarcoding analysis of phytoplankton community composition and diversity in aquaculture water and the stomach contents of Tegillarca granosa during months of growth. Mar Pollut Bull 2023; 187:114556. [PMID: 36640496 DOI: 10.1016/j.marpolbul.2022.114556] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2022] [Revised: 12/19/2022] [Accepted: 12/27/2022] [Indexed: 06/17/2023]
Abstract
Filter-feeder bivalves and phytoplankton are interdependent. Their interaction plays important role in estuarine and coastal ecosystem. The correlation between bivalve feeding and phytoplankton is highly species specificity and environment dependent. In the background of miniature and nondiatom trend of phytoplankton in coastal seawaters, how bivalve respond and how the response play roles in the phytoplankton community are poorly known. In the present study, by applying DNA metabarcoding approach based on plastid 23S rDNA, this question was addressed by comparing the phytoplankton composition in the seston and the stomach content of blood clam Tegillarca granosa sampled during the growth period from March to November 2020 in an experimental farm on tidal flat in Xiangshan Bay, East China Sea. The result showed that, a total of seven phyla, 55 genera and 73 species of phytoplankton were identified for all samples. Chlorophyta, Bacillariophyta, and Cyanobacteria were found to be three dominant phyla both in the stomach contents and seston. High diversity of pico-sized phytoplankton, which was easy overlooked by microscopy, was revealed both in seston and stomach contents. This result indicated that the clam was able to feed on the pico-sized algae. At the genus level, the most abundant genera were the pico-sized green alga Ostreococcus (6.12 %-67.88 %) in seston and Picochlorum (4.07 %-35.33 %) in the stomach contents. In addition, microalgae of high nutritional value showed trend of higher proportion in stomach contents than that in seston, especially in July and September when significant growth of T. granosa was observed during this period (the body size increased 155 %). Biodiversity of phytoplankton in the seston was totally higher than that in stomach content, however, the changes among the months showed respective trend. Especially in July when the biodiversity was the lowest in seston, that in the stomach content showed the highest. The results indicated that blood clam farming might influence the phytoplankton composition, including those of pico-sized level, although the particular species in seston were mainly correlating with the dominant environmental factors such as temperature, salinity, pH respectively. These results extend the understanding of roles that bivalve aquaculture may play in the changing of coastal phytoplankton community.
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Affiliation(s)
- Hailong Huang
- School of Marine Science, Ningbo University, Ningbo, Zhejiang 315211, China.
| | - Sentao Chen
- School of Marine Science, Ningbo University, Ningbo, Zhejiang 315211, China.
| | - Zhihui Xu
- School of Marine Science, Ningbo University, Ningbo, Zhejiang 315211, China.
| | - Yanhua Wu
- College of Food and Pharmaceutical Sciences, Ningbo University, Ningbo, Zhejiang 315211, China.
| | - Limin Mei
- College of Food and Pharmaceutical Sciences, Ningbo University, Ningbo, Zhejiang 315211, China.
| | - Yuanbo Pan
- College of Food and Pharmaceutical Sciences, Ningbo University, Ningbo, Zhejiang 315211, China.
| | - Xiaojun Yan
- School of Marine Science, Ningbo University, Ningbo, Zhejiang 315211, China; Li Dak Sum Yip Yio Chin Kenneth Li Marine Biopharmaceutical Research Center, Ningbo University, Ningbo 315211, China.
| | - Chengxu Zhou
- College of Food and Pharmaceutical Sciences, Ningbo University, Ningbo, Zhejiang 315211, China; Li Dak Sum Yip Yio Chin Kenneth Li Marine Biopharmaceutical Research Center, Ningbo University, Ningbo 315211, China.
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Sun B, Zhang P, Zhang J, Huang T, Li C, Yang W. Absorption of iron from Tegillarca granosa using an in vitro simulated digestion and Caco-2/HepG2 co-culture system. J Sci Food Agric 2023; 103:891-899. [PMID: 36057934 DOI: 10.1002/jsfa.12200] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 05/25/2022] [Accepted: 09/04/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND Iron-deficiency anemia is one severe micronutrient malnutrition and has captured worldwide attention. This study evaluated the in vitro iron absorption of two iron-binding proteins (hemoglobin and ferritin) from Tegillarca granosa. In addition, the protein structure-iron absorption relationship and the regulatory effect of hepcidin on cellular iron absorption were explored. RESULTS Our findings revealed that both hemoglobin and ferritin extracted from T. granosa contained abundant iron-binding sites, as evidenced by stronger peaks in amide I and II regions compared with the two proteins from humans. Less β-sheet (27.67%) structures were found in hemoglobin compared with ferritin (36.40%), probably contributing to its greater digestibility and more release of available iron. This was confirmed by the results of Caco-2/HepG2 cell culture system that showed iron absorption of hemoglobin was 26.10-39.31% higher than that of ferritin with an iron content of 50-150 μmol L-1 . This high iron absorption of hemoglobin (117.86-174.10 ng mg-1 ) could also be due to more hepcidin produced by HepG2 cells, thereby preventing ferroportin-mediated iron efflux from Caco-2 cells. In addition, the possible risk of oxidative stress was evaluated in cells post-iron exposure. In comparison with ferrous sulfate, a common iron supplement, Caco-2 cells treated with the iron-binding proteins had a 9.50-25.73% lower level of intracellular reactive oxygen species, indicating the safety of hemoglobin and ferritin. CONCLUSION Collectively, the data of this research would be helpful for understanding the key features and potential of developing hemoglobin and ferritin from T. granosa as novel iron supplements. © 2022 Society of Chemical Industry.
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Affiliation(s)
- Bolun Sun
- College of Food and Pharmaceutical Sciences, Ningbo University, Ningbo, China
| | - Panxue Zhang
- College of Food and Pharmaceutical Sciences, Ningbo University, Ningbo, China
| | - Jinjie Zhang
- College of Food and Pharmaceutical Sciences, Ningbo University, Ningbo, China
- Key Laboratory of Animal Protein Food Deep Processing Technology of Zhejiang Province, Ningbo University, Ningbo, China
| | - Tao Huang
- College of Food and Pharmaceutical Sciences, Ningbo University, Ningbo, China
- Key Laboratory of Animal Protein Food Deep Processing Technology of Zhejiang Province, Ningbo University, Ningbo, China
| | - Chao Li
- College of Food and Pharmaceutical Sciences, Ningbo University, Ningbo, China
- Key Laboratory of Animal Protein Food Deep Processing Technology of Zhejiang Province, Ningbo University, Ningbo, China
| | - Wenge Yang
- College of Food and Pharmaceutical Sciences, Ningbo University, Ningbo, China
- Key Laboratory of Animal Protein Food Deep Processing Technology of Zhejiang Province, Ningbo University, Ningbo, China
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Wu Y, Liu G, Li Z, Chen M, Wang Q. ATG13 is involved in immune response of pathogen invasion in blood clam Tegillarca granosa. Front Vet Sci 2023; 10:1141284. [PMID: 36937017 PMCID: PMC10017841 DOI: 10.3389/fvets.2023.1141284] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Accepted: 02/13/2023] [Indexed: 03/06/2023] Open
Abstract
Mammalian autophagy-related gene 13 (ATG13) is a vital component of the ATG1 autophagy initiation complex which plays an essential role in autophagy. However, the molecular function of ATG13 in pathogen defense in invertebrates is still poorly understood. In this study, the full-length cDNA sequence of blood clam Tegillarca granosa ATG13 (TgATG13) was obtained, which was 1,918 bp in length, including 283 bp 5' UTR, 252 bp 3' UTR and 1,383 bp open reading frame (ORF) encoding 460 amino acids. Phylogenetic analysis revealed that TgATG13 had the closest relationship with that of Crassostrea Virginica. Quantitative real-time PCR results showed that the transcript of TgATG13 was universally expressed in various tissues of blood clam, with the highest expression level in hemocytes. The expression level of TgATG13 was robustly increased after exposure of both Vibrio alginolyticus and LPS. Fluorescence confocal microscopy further showed that TgATG13 promoted the production of autophagosome. In summary, our study demonstrated that TgATG13 was involved in the immune regulation of blood clam during pathogen invasion, deepening our understanding of the innate immune mechanism of blood clam.
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Affiliation(s)
- Yuling Wu
- State Key Laboratory Breeding Base of Marine Genetic Resources, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen, China
- School of Life Science, Xiamen University, Xiamen, China
| | - Guosheng Liu
- State Key Laboratory Breeding Base of Marine Genetic Resources, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen, China
| | - Zengpeng Li
- State Key Laboratory Breeding Base of Marine Genetic Resources, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen, China
- *Correspondence: Zengpeng Li
| | - Mingliang Chen
- State Key Laboratory Breeding Base of Marine Genetic Resources, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen, China
- Co-innovation Center of Jiangsu Marine Bio-Industry Technology, Jiangsu Ocean University, Lianyungang, China
- School of Marine Biology, Xiamen Ocean Vocational College, Xiamen, China
- Mingliang Chen
| | - Qin Wang
- School of Life Science, Xiamen University, Xiamen, China
- Qin Wang
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Yang Q, Xiao G, Chen R, Huang X, Teng S. Immune responses of hemocytes in the blood clam Tegillarca granosa in response to in vivo Vibrio harveyi infection. Fish Shellfish Immunol 2023; 132:108447. [PMID: 36435369 DOI: 10.1016/j.fsi.2022.11.035] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2022] [Revised: 11/13/2022] [Accepted: 11/18/2022] [Indexed: 06/16/2023]
Abstract
Aquaculture of the blood clam Tegillarca granosa accounts for approximately 50% of Arcidae (ark shell) production in China. Vibrio infection severely threatens the sustainability of the clam aquaculture industry. Exposure to Vibrio induces an immune response in blood clams. However, the underlying mechanism remains poorly understood. In this study, immune responses of hemocytes in blood clams were detected after Vibrio infection; the immersion method was used in vivo to mimic the clam's natural infection process. After 24 h of exposure to Vibrio infection, the Vibrio load in hemolymph fluid in both the treatment Ⅰ (25,033.33 ± 19,563.11 CFU/mL) and treatment Ⅱ (122,163.33 ± 194,409.49 CFU/mL) groups were significantly higher, than that in the control group (13.67 ± 37.73 CFU/mL) (P < 0.05). Correspondingly, the production of intracellular reactive oxygen species was approximately 1.40 (treatment Ⅰ) and 2.12 (treatment Ⅱ) fold higher than that in the control group (P < 0.05), and the induced DNA damage showed a similar trend (P < 0.05). Vibrio infection also significantly increased lysozyme content, adenosine triphosphate content, and peroxidase isozyme activity, in both the serum and hemocyte lysates (P < 0.05). The expression of immune-associated genes (ABCA3, c-Myc, Caspase 3, and HSP70) was upregulated under infection conditions. The phagocytic activity was approximately 1.99 (treatment Ⅰ) and 2.57 (treatment Ⅱ) fold that in control clams (P < 0.05). In addition, the total hemocyte count and red granulocyte percentage both significantly decreased by approximately 75-90% after Vibrio infection. These results provided novel insights into the mechanism of hemocyte immunity in T. granosa against Vibrio infection, which may aid in the future prevention and control of Vibrio infection in vivo.
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Affiliation(s)
- Qianyuan Yang
- Zhejiang Mariculture Research Institute, Zhejiang Key Laboratory of Exploitation and Preservation of Coastal Bio-Resource, Wenzhou Key Laboratory of Marine Biological Genetics and Breeding, Wenzhou, Zhejiang, 325005, China; College of Fisheries and Life Science, Shanghai Ocean University, Shanghai, 201306, China
| | - Guoqiang Xiao
- Zhejiang Mariculture Research Institute, Zhejiang Key Laboratory of Exploitation and Preservation of Coastal Bio-Resource, Wenzhou Key Laboratory of Marine Biological Genetics and Breeding, Wenzhou, Zhejiang, 325005, China; College of Fisheries and Life Science, Shanghai Ocean University, Shanghai, 201306, China
| | - Ran Chen
- Zhejiang Mariculture Research Institute, Zhejiang Key Laboratory of Exploitation and Preservation of Coastal Bio-Resource, Wenzhou Key Laboratory of Marine Biological Genetics and Breeding, Wenzhou, Zhejiang, 325005, China
| | - Xiaolin Huang
- Zhejiang Mariculture Research Institute, Zhejiang Key Laboratory of Exploitation and Preservation of Coastal Bio-Resource, Wenzhou Key Laboratory of Marine Biological Genetics and Breeding, Wenzhou, Zhejiang, 325005, China.
| | - Shuangshuang Teng
- Zhejiang Mariculture Research Institute, Zhejiang Key Laboratory of Exploitation and Preservation of Coastal Bio-Resource, Wenzhou Key Laboratory of Marine Biological Genetics and Breeding, Wenzhou, Zhejiang, 325005, China.
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Sun B, Zhang P, Wei H, Jia R, Huang T, Li C, Yang W. Effect of hemoglobin extracted from Tegillarca granosa on iron deficiency anemia in mice. Food Res Int 2022; 162:112031. [PMID: 36461251 DOI: 10.1016/j.foodres.2022.112031] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Revised: 09/22/2022] [Accepted: 10/03/2022] [Indexed: 12/13/2022]
Abstract
Iron deficiency anemia (IDA) is the most common nutritional deficiency in the world. This study was aimed to evaluate the therapeutic effects of hemoglobin from Tegillarca granosa (T. granosa) on IDA in mice. Mice were randomly divided into five groups: a normal control group, an anemia model group, a positive (FeSO4) control group, a low-dose and high-dose hemoglobin groups. After 4-week iron supplements administration, it was observed that hemoglobin at 2.0 mg iron/kg body weight had better restorative effective on IDA mice than that of FeSO4 with regard to routine blood parameters and serum biochemical indicators. Meanwhile, the IDA-caused alterations of organ coefficients and liver morphology were ameliorated in mice after hemoglobin supplementation in a dose-dependent manner. Further correlation analysis of indicators showed that serum ferritin (iron storage protein) and soluble transferrin receptor (cellular iron uptake membrane glycoprotein) were susceptible to iron deficiency, indicating possibledisorder of iron metabolism caused by IDA. And levels of serum ferritin and soluble transferrin receptor were restored after administration of hemoglobin. These findings confirmed the safety and effectiveness of T. granosa derived hemoglobin in alleviating IDA in mice, suggesting its great potential as an alternative for iron supplementation.
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Wu Z, Tang M, Zhao J, Lin Z, Wang S, Bao Y. Genome-wide identification and immune response analysis of serine protease inhibitor genes in the blood clam Tegillarca granosa. Fish Shellfish Immunol 2022; 131:1234-1244. [PMID: 36417957 DOI: 10.1016/j.fsi.2022.11.036] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2022] [Revised: 11/16/2022] [Accepted: 11/18/2022] [Indexed: 06/16/2023]
Abstract
Serine protease inhibitors (SPIs) are the main regulators of serine protease activities. In this study, we present a genome-wide identification of SPI genes in T. granosa(TgSPI genes)and their expression characteristics in respond to Vibrio stress. A total of 102 TgSPI genes belonging to eight families, including Serpin, TIL (trypsin inhibitor like cysteine rich domain), Kunitz, Kazal, I84, Pacifastin, WAP (whey acidic protein) and A2M (Alpha-2-macroglobulin) were identified, while no genes belonging to Bowman-Birk, amfpi and Antistasin families were identified. The Kazal family has the most TgSPI genes with 38, and 11 TgSPI genes belong to the mollusc-specific I84 family. The TgSPI genes were found to be randomly distributed on 17 chromosomes with 12 tandem duplicate gene pairs. Expression profiles showed that most TgSPI genes were mainly expressed in immune-related tissues such as hepatopancreas, gill and mantle. In the hepatopancreas, most of TgSPI genes were sensitive to Vibrio stress, 28 and 29 TgSPI genes were up-regulated and down-regulated, respectively. Some up-regulated genes with signal peptides, such as the TgSPIs of I84 family, may act as a mechanism to directly prevent Vibrio from invasion. Six Kazal-type TgSPIs (TgSPI29, 45, 49, 50, 51 and 52) were intracellular proteins and their expression was down-regulated in hemocytes after Vibrio stress. This may have boosted protease activity in hemocytes to the point that more hemoglobin derived peptides were produced and secreted into the hemolymph to exert their anti-Vibrio effects. These findings may provide valuable information for further clarifying the roles of SPIs in the immune defense and will benefit future exploration of the immune function of SPIs in molluscs.
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Affiliation(s)
- Zongming Wu
- Zhejiang Key Laboratory of Aquatic Germplasm Resources, College of Biological & Environmental Sciences, Zhejiang Wanli University, Ningbo, Zhejiang, 315100, China
| | - Mengjie Tang
- Zhejiang Key Laboratory of Aquatic Germplasm Resources, College of Biological & Environmental Sciences, Zhejiang Wanli University, Ningbo, Zhejiang, 315100, China
| | - Jiafeng Zhao
- Zhejiang Key Laboratory of Aquatic Germplasm Resources, College of Biological & Environmental Sciences, Zhejiang Wanli University, Ningbo, Zhejiang, 315100, China
| | - Zhihua Lin
- Zhejiang Key Laboratory of Aquatic Germplasm Resources, College of Biological & Environmental Sciences, Zhejiang Wanli University, Ningbo, Zhejiang, 315100, China; Ninghai Institute of Mariculture Breeding and Seed Industry, Zhejiang Wanli University, Ninghai, 315604, China
| | - Sufang Wang
- Zhejiang Key Laboratory of Aquatic Germplasm Resources, College of Biological & Environmental Sciences, Zhejiang Wanli University, Ningbo, Zhejiang, 315100, China; Ninghai Institute of Mariculture Breeding and Seed Industry, Zhejiang Wanli University, Ninghai, 315604, China.
| | - Yongbo Bao
- Zhejiang Key Laboratory of Aquatic Germplasm Resources, College of Biological & Environmental Sciences, Zhejiang Wanli University, Ningbo, Zhejiang, 315100, China; Ninghai Institute of Mariculture Breeding and Seed Industry, Zhejiang Wanli University, Ninghai, 315604, China.
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Lee GY, Kim E, Yang SM, Kim HY. Rapid On-Site Identification for Three Arcidae Species ( Anadara kagoshimensis, Tegillarca granosa, and Anadara broughtonii) Using Ultrafast PCR Combined with Direct DNA Extraction. Foods 2022; 11:2449. [PMID: 36010449 DOI: 10.3390/foods11162449] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 08/09/2022] [Accepted: 08/12/2022] [Indexed: 11/17/2022] Open
Abstract
Granular ark (Tegillarca granosa), broughton's ribbed ark (Anadara broughtonii), and half-crenate ark (Anadara kagoshimensis) are important fishery resources throughout Asia; granular ark exhibiting a higher economic value due to its rarity. However, due to the similar morphological characteristics of the three species, the less valuable species could be exploited for food fraud. In this study, we developed a rapid on-site identification method based on a microfluidic chip for the detection of the three ark shell species. We designed new species-specific primers, targeting the genes encoding mitochondrial cytochrome b or cytochrome c oxidase I, for the identification of the three ark shells and estimated their specificity against 17 species, which amplified only the target species. The sensitivity of each primer was 0.001 ng. In addition, this method was further improved to develop a direct ultrafast polymerase chain reaction (PCR) for on-site food monitoring, which would allow for completing the entire procedure (from sampling to obtaining the results) within 25 min without DNA extraction. Our direct, ultrafast PCR was successfully applied to differentiate the three species from 29 commercial products. Therefore, this assay could be used as a rapid and cost-effective approach for the on-site identification of ark shells in commercial food products.
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Zhao D, Hu G, Chen R, Xiao G, Teng S. Molecular cloning, characterization, and tissue distribution of c-Myc from blood clam Tegillarca granosa and its role in cadmium-induced stress response. Gene 2022; 834:146611. [PMID: 35618219 DOI: 10.1016/j.gene.2022.146611] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 04/28/2022] [Accepted: 05/19/2022] [Indexed: 11/20/2022]
Abstract
Cadmium (Cd) pollution threatens the cultivation of the blood clam Tegillarca granosa (T. granosa) in coastal regions of the East China Sea. The molecular mechanisms regulating Cd stress response and detoxification in blood clams are largely unclear. In the present study, the full-length T. granosa c-Myc (Tgc-Myc) cDNA was cloned for the first time. The 3063-bp cDNA consisted of a 129-bp 5' untranslated region (UTR), a 1746-bp 3' UTR, and a 1188-bp open reading frame encoding a predicted protein of 395 amino acid residues. The predicted protein had a calculated molecular weight of 44.9 kDa and an estimated isoelectric point of 6.82. The predicted protein contained an N-terminal transactivation domain and a C-terminal basic helix-loop-helix leucine zipper domain, which are conserved functional domains of c-Myc proteins. Tgc-Myc showed broad tissue distribution in blood clams, with the highest expression detected in the gill and hepatopancreas. Exposure to Cd, a major heavy metal pollutant in coastal regions of the East China Sea, induced Tgc-Myc expression in gill tissues. Tgc-Myc knockdown led to reduced expression of a variety of stress response/detoxification genes in blood clams cultivated in Cd-contaminated seawater. Tgc-Myc knockdown also led to decreased expression of IGF1R, a proto-oncogene that promotes cell proliferation. These findings indicated that Tgc-Myc regulates Cd-induced stress response and detoxification in blood clams. The upregulation of Tgc-Myc may serve as an approach to generate strains with an enhanced detoxification response and consequently a low heavy metal buildup.
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Affiliation(s)
- Defeng Zhao
- Zhejiang Mariculture Research Institute, Zhejiang Key Lab of Exploitation and Preservation of Coastal Bio-Resource, Wenzhou Key Laboratory of Marine Biological Genetics and Breeding, Wenzhou 325005, China; Zhejiang Ocean University, Zhoushan 316022, China
| | - Gaoyu Hu
- Zhejiang Mariculture Research Institute, Zhejiang Key Lab of Exploitation and Preservation of Coastal Bio-Resource, Wenzhou Key Laboratory of Marine Biological Genetics and Breeding, Wenzhou 325005, China
| | - Ran Chen
- Zhejiang Mariculture Research Institute, Zhejiang Key Lab of Exploitation and Preservation of Coastal Bio-Resource, Wenzhou Key Laboratory of Marine Biological Genetics and Breeding, Wenzhou 325005, China
| | - Guoqiang Xiao
- Zhejiang Mariculture Research Institute, Zhejiang Key Lab of Exploitation and Preservation of Coastal Bio-Resource, Wenzhou Key Laboratory of Marine Biological Genetics and Breeding, Wenzhou 325005, China; Zhejiang Ocean University, Zhoushan 316022, China
| | - Shuangshuang Teng
- Zhejiang Mariculture Research Institute, Zhejiang Key Lab of Exploitation and Preservation of Coastal Bio-Resource, Wenzhou Key Laboratory of Marine Biological Genetics and Breeding, Wenzhou 325005, China.
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Sun B, Zhang P, Zhang J, Huang T, Li C, Yang W. Preparation, characterization and bioavailability studies of Tegillarca granosa hemoglobin and its glycosylated products. Int J Biol Macromol 2022; 219:11-20. [PMID: 35931292 DOI: 10.1016/j.ijbiomac.2022.07.234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Revised: 07/24/2022] [Accepted: 07/29/2022] [Indexed: 11/05/2022]
Abstract
Iron deficiency anemia (IDA) is a common micronutrient deficiency. Tegillarca granosa (T. granosa) is a good source of iron due to its high content of hemoglobin. The present study aimed to determine the effects of glycosylation on structure, physicochemical characteristics and iron bioavailability of hemoglobin. Using Box-Behnken design and response surface methodology, the optimal conditions for hemoglobin-chitosan glycosylation were obtained: 61.8 °C, pH 6.3, hemoglobin/chitosan mass ratio of 4.3 and reaction time of 15 min. The formation of hemoglobin-chitosan conjugates was verified by SDS-PAGE and fluorescence spectroscopy. The surface hydrophobicity of hemoglobin was reduced by 20.90-65.05 % after glycosylation, along with the observations of elevated water-holding capacity, likely owing to the introduction of hydrophilic groups. Antioxidant capacity of glycosylated products (0.41-0.66 μM Trolox/mg protein) was markedly greater than that of original protein (0.06 μM Trolox/mg protein) due to the formation of brown polymers with antioxidant activity. In addition, glycosylation improved in vitro digestibility of hemoglobin by 41.15-69.09 %, which could be attributed to less β-sheet in secondary structures. Moreover, hemoglobin (324.38 ng/mg) exhibited better iron absorption than FeSO4 (121.63 ng/mg), with the value being further enhanced by glycosylation (442.73 ng/mg), which may be due to the improved protein digestibility and iron-chelating capacity.
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Affiliation(s)
- Bolun Sun
- College of Food and Pharmaceutical Sciences, Ningbo University, 315211, China
| | - Panxue Zhang
- College of Food and Pharmaceutical Sciences, Ningbo University, 315211, China
| | - Jinjie Zhang
- College of Food and Pharmaceutical Sciences, Ningbo University, 315211, China; Key Laboratory of Animal Protein Food Deep Processing Technology of Zhejiang Province, Ningbo University, Ningbo 315211, China.
| | - Tao Huang
- College of Food and Pharmaceutical Sciences, Ningbo University, 315211, China; Key Laboratory of Animal Protein Food Deep Processing Technology of Zhejiang Province, Ningbo University, Ningbo 315211, China.
| | - Chao Li
- College of Food and Pharmaceutical Sciences, Ningbo University, 315211, China; Key Laboratory of Animal Protein Food Deep Processing Technology of Zhejiang Province, Ningbo University, Ningbo 315211, China.
| | - Wenge Yang
- College of Food and Pharmaceutical Sciences, Ningbo University, 315211, China; Key Laboratory of Animal Protein Food Deep Processing Technology of Zhejiang Province, Ningbo University, Ningbo 315211, China.
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21
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Zha S, Tang Y, Shi W, Liu H, Sun C, Bao Y, Liu G. Impacts of four commonly used nanoparticles on the metabolism of a marine bivalve species, Tegillarca granosa. Chemosphere 2022; 296:134079. [PMID: 35216984 DOI: 10.1016/j.chemosphere.2022.134079] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Revised: 02/18/2022] [Accepted: 02/20/2022] [Indexed: 05/06/2023]
Abstract
The rapid development of nanotechnology boosts the massive production and utilization of various nanoparticles (NPs). However, the NPs escaped into environments form emergent pollutants, which pose a potential threat to marine organisms and ecosystems. Due to their sessile filter-feeding lifestyle, marine bivalves live in pollution-prone coastal areas are more susceptible to land-sourced pollutants such as NPs. However, the impacts of many NPs on the metabolism, one of the most critical physiological processes of an organism, still remain largely unknown in bivalve species. To fill up this knowledge gap, in this study the impacts of four commonly used NPs (nZnO, nFe2O3, nCuO, and multi-walled carbon tube (MWCNT)) on the filtration rate, oxygen consumption rate, ammonia excretion rate, and O:N ratio were investigated in the blood clam, Tegillarca granosa. In addition, the expressions of ten key metabolism-related genes upon exposure to these NPs were also analyzed. The results demonstrated that exposure of blood clams to the NPs resulted in a reduction in the food intake (indicated by declined filtration rate), a shift in the metabolism substance, and disruptions in key metabolism-related molecular pathways (i.e., glycolysis and tricarboxylic acid cycle), which may render blood clam in energy shortage and thus pose significant threat to the health of this important bivalve species.
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Affiliation(s)
- Shanjie Zha
- Zhejiang Key Laboratory of Aquatic Germplasm Resources, College of Biological & Environmental Sciences, Zhejiang Wanli University, Ningbo, 315100, PR China; College of Animal Sciences, Zhejiang University, Hangzhou, 310058, PR China; Ninghai Institute of Mariculture Breeding and Seed Industry, Zhejiang Wanli University, Ninghai, 315604, PR China
| | - Yu Tang
- College of Animal Sciences, Zhejiang University, Hangzhou, 310058, PR China
| | - Wei Shi
- College of Animal Sciences, Zhejiang University, Hangzhou, 310058, PR China
| | - Hongxing Liu
- Zhejiang Key Laboratory of Aquatic Germplasm Resources, College of Biological & Environmental Sciences, Zhejiang Wanli University, Ningbo, 315100, PR China; Ninghai Institute of Mariculture Breeding and Seed Industry, Zhejiang Wanli University, Ninghai, 315604, PR China
| | - Changsen Sun
- Ninghai Institute of Mariculture Breeding and Seed Industry, Zhejiang Wanli University, Ninghai, 315604, PR China
| | - Yongbo Bao
- Zhejiang Key Laboratory of Aquatic Germplasm Resources, College of Biological & Environmental Sciences, Zhejiang Wanli University, Ningbo, 315100, PR China; Ninghai Institute of Mariculture Breeding and Seed Industry, Zhejiang Wanli University, Ninghai, 315604, PR China
| | - Guangxu Liu
- College of Animal Sciences, Zhejiang University, Hangzhou, 310058, PR China.
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22
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Zheng X, Yuan C, Zhang Y, Zha S, Mao F, Bao Y. Prediction and characterization of a novel hemoglobin-derived mutant peptide (mTgHbP7) from Tegillarca granosa. Fish Shellfish Immunol 2022; 125:84-89. [PMID: 35537672 DOI: 10.1016/j.fsi.2022.05.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Revised: 05/01/2022] [Accepted: 05/04/2022] [Indexed: 06/14/2023]
Abstract
The hemoglobin (Hb) is identified in Tegillarca granosa and its derived peptides have been proved to possess antibacterial activity against gram-positive and gram-negative bacteria. In this study, we identified a series of novel antimicrobial peptides (AMPs) and artificially mutated AMPs derived from subunits of T. granosa Hbs, among which, a mutant T. granosa hemoglobin peptide (mTgHbP) mTgHbP7, was proved to possess predominant antibacterial activity against three bacteria strains (Vibrio alginolyticus, V. parahaemolyticus and Escherichia coli). Besides, mTgHbP7 was predicted to form α-helical structure, which was known to be an important feature of bactericidal AMPs. Furthermore, upon contact with HEK293 cell line, we confirmed that mTgHbP7 had no cytotoxicity to mammalian cell even at a high concentration of 160 μM. Therefore, the findings reported here provide a rationalization for antimicrobial peptide prediction and optimization from mollusk hemoglobin, which will be useful for future development of antimicrobial agents.
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Affiliation(s)
- Xiaoying Zheng
- School of Marine Sciences, Ningbo University, Ningbo, 315211, China; Zhejiang Key Laboratory of Aquatic Germplasm Resources, College of Biological and Environmental Sciences, Zhejiang Wanli University, Ningbo, 315100, China
| | - Chun Yuan
- Zhejiang Key Laboratory of Aquatic Germplasm Resources, College of Biological and Environmental Sciences, Zhejiang Wanli University, Ningbo, 315100, China
| | - Yang Zhang
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology and Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Innovation Academy of South China Sea Ecology and Environmental Engineering, Chinese Academy of Sciences, Guangzhou, China; Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou, China
| | - Shanjie Zha
- Zhejiang Key Laboratory of Aquatic Germplasm Resources, College of Biological and Environmental Sciences, Zhejiang Wanli University, Ningbo, 315100, China; Ninghai Institute of Mariculture Breeding and Seed Industry, Zhejiang Wanli University, Ninghai, 315604, China
| | - Fan Mao
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology and Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Innovation Academy of South China Sea Ecology and Environmental Engineering, Chinese Academy of Sciences, Guangzhou, China; Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou, China.
| | - Yongbo Bao
- Zhejiang Key Laboratory of Aquatic Germplasm Resources, College of Biological and Environmental Sciences, Zhejiang Wanli University, Ningbo, 315100, China; Ninghai Institute of Mariculture Breeding and Seed Industry, Zhejiang Wanli University, Ninghai, 315604, China.
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Wang Q, Li M, Hu G, Xiao G, Teng S. Characterization of a novel activating protein-1 (AP-1) gene and the association of its single nucleotide polymorphisms with vibrio resistance in Tegillarca granosa. Fish Shellfish Immunol 2022; 124:552-562. [PMID: 35489594 DOI: 10.1016/j.fsi.2022.04.023] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Revised: 04/12/2022] [Accepted: 04/18/2022] [Indexed: 06/14/2023]
Abstract
The blood clam Tegillarca granosa is a commercial marine bivalve of economic value, accounting for approximately 50% of clam production in China. In recent years, the yield of blood clams has been threatened by bacterial infections caused by marine Vibrio species that thrive under a rising sea temperature. The transcription factor activating protein-1 (AP-1) is emerging as an important player in the innate immunity of marine bivalves against viral or bacterial infections. In this study, the full-length cDNA of a novel T. granosa AP-1 (TgAP-1) was cloned for the first time. The 1591-bp cDNA encoded a protein of 292 amino acid residues with a calculated molecular weight of 32.8 kDa. The TgAP-1 protein contained an N-terminal Jun domain and a C-terminal basic region leucine zipper domain typically found in Jun proteins (a subfamily of AP-1 proteins). TgAP-1 was ubiquitously expressed in T. granosa, with the highest expression detected in the gill and foot, followed by the mantle, hemolymph, and hepatopancreas. Exposure to Vibrio harveyi induced TgAP-1 expression in gill tissues and the expression levels of TgAP-1 of resistant blood clams were always lower than that of control population whether Vibro infection or not. A total of 18 single nucleotide polymorphisms (SNPs) of TgAP-1 were detected in T. granosa. SNP-typing and haplotyping of resistant and susceptible populations revealed that six SNPs (AG type of TgSNP-1, GA type of TgSNP-2, TG type of TgSNP-4, CT type of TgSNP-7, AG type of TgSNP-11, and GA type of TgSNP-12) and four haplotypes (fHap2, fHap3, fHap6, and fHap7) were significantly associated with V. harveyi resistance. Risk assessment showed that fHap2 (CG) and fHap7 (GA) were associated with an increased resistance, while fHap3 (CT) and fHap6 (AG) were associated with an increased susceptibility. The results from this study supported a potential role of TgAp-1 in the anti-Vibro immunity of T. granosa. The discovery of the genetic molecular markers and haplotypes related to Vibrio resistance can provide guidance for selective breeding of T. granosa in the future.
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Affiliation(s)
- Qiujin Wang
- College of Fisheries and Life Science, Shanghai Ocean University, Shanghai, 201306, China; Zhejiang Mariculture Research Institute, Zhejiang Key Laboratory of Exploitation and Preservation of Coastal Bio-Resource, Wenzhou Key Laboratory of Marine Biological Genetics and Breeding, Wenzhou, Zhejiang, 325005, China
| | - Min Li
- Zhejiang Mariculture Research Institute, Zhejiang Key Laboratory of Exploitation and Preservation of Coastal Bio-Resource, Wenzhou Key Laboratory of Marine Biological Genetics and Breeding, Wenzhou, Zhejiang, 325005, China
| | - Gaoyu Hu
- Zhejiang Mariculture Research Institute, Zhejiang Key Laboratory of Exploitation and Preservation of Coastal Bio-Resource, Wenzhou Key Laboratory of Marine Biological Genetics and Breeding, Wenzhou, Zhejiang, 325005, China
| | - Guoqiang Xiao
- College of Fisheries and Life Science, Shanghai Ocean University, Shanghai, 201306, China; Zhejiang Mariculture Research Institute, Zhejiang Key Laboratory of Exploitation and Preservation of Coastal Bio-Resource, Wenzhou Key Laboratory of Marine Biological Genetics and Breeding, Wenzhou, Zhejiang, 325005, China.
| | - Shuangshuang Teng
- Zhejiang Mariculture Research Institute, Zhejiang Key Laboratory of Exploitation and Preservation of Coastal Bio-Resource, Wenzhou Key Laboratory of Marine Biological Genetics and Breeding, Wenzhou, Zhejiang, 325005, China.
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24
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Zhan Y, Zha S, Peng Z, Lin Z, Bao Y. Hypoxia-mediated immunotoxicity in the blood clam Tegillarca granosa. Mar Environ Res 2022; 177:105632. [PMID: 35439659 DOI: 10.1016/j.marenvres.2022.105632] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2022] [Revised: 04/09/2022] [Accepted: 04/11/2022] [Indexed: 06/14/2023]
Abstract
In marine ecosystems, dissolved oxygen (DO) is essential for maintaining intracellular energy balance during aerobic metabolism. Bivalve mollusks are frequently exposed to hypoxia environments due to tides, temperature changes, and anthropogenic activities. The blood clam, Tegillarca granosa, mainly inhabits intertidal mudflats and is more susceptible to low oxygen events. In this study, we investigated the effect of hypoxia on immune responses in clams, and showed that hypoxia exposure reduced total hemocyte counts (THC), hemoglobin concentrations, and intracellular reactive oxygen species (ROS) levels. Also, phagocytic and cell activities of hemocyte were significantly inhibited. Furthermore, immune-related gene expression was also down-regulated. In conclusion, hypoxia greatly affected immune functions in blood clams, and our research provided the foundation for further mechanistic studies on hypoxia tolerance in clams.
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Affiliation(s)
- Yu Zhan
- School of Fisheries and Life Science, Shanghai Ocean University, Shanghai, 201306, China; Key Laboratory of Aquatic Germplasm Resource of Zhejiang, College of Biological and Environmental Sciences, Zhejiang Wanli University, Ningbo, Zhejiang, 315100, China
| | - Shanjie Zha
- Key Laboratory of Aquatic Germplasm Resource of Zhejiang, College of Biological and Environmental Sciences, Zhejiang Wanli University, Ningbo, Zhejiang, 315100, China
| | - Zhilan Peng
- Key Laboratory of Aquatic Germplasm Resource of Zhejiang, College of Biological and Environmental Sciences, Zhejiang Wanli University, Ningbo, Zhejiang, 315100, China
| | - Zhihua Lin
- Key Laboratory of Aquatic Germplasm Resource of Zhejiang, College of Biological and Environmental Sciences, Zhejiang Wanli University, Ningbo, Zhejiang, 315100, China; Ninghai Institute of Mariculture Breeding and Seed Industry, Zhejiang Wanli University, Ninghai, 315604, China
| | - Yongbo Bao
- Key Laboratory of Aquatic Germplasm Resource of Zhejiang, College of Biological and Environmental Sciences, Zhejiang Wanli University, Ningbo, Zhejiang, 315100, China; Ninghai Institute of Mariculture Breeding and Seed Industry, Zhejiang Wanli University, Ninghai, 315604, China.
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25
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Kim JH, Lee HM, Cho YG, Shin JS, Yoo JW, Hong HK, Choi KS. Effects of spawning stress on the immune capacity of blood cockle Tegillarca granosa occurring on the south coast of Korea. Fish Shellfish Immunol 2022; 120:15-22. [PMID: 34774731 DOI: 10.1016/j.fsi.2021.11.013] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Revised: 08/06/2021] [Accepted: 11/09/2021] [Indexed: 06/13/2023]
Abstract
Spawning in marine bivalves is a great energy-demanding process, and it often results in lethal and sublethal stresses during the post-spawning period, including depressed immune capacity. The blood cockle Tegillarca granosa (Linnaeus, 1758) distributes widely in silty-mud tidal flats on the south coast of Korea, and they spawn in late summer. To understand the impacts of spawning on immune parameters, we analyzed the total hemocyte count (THC), hemocyte mortality, phagocytosis capacity, and reactive oxygen species (ROS) production of T. granosa in pre-, and post-spawning condition using a flow cytometer. Histology indicated that the blood cockles occurring on the south coast of Korea ripe and ready to spawn in July, and they spawned in August and September. The THC in the blood cockle hemolymph declined from pre-spawning (1.2 × 108 cell mL-1) to post-spawning (0.9 × 108 cell mL-1), possibly due to the spawning stress and the massive infiltration of hemocytes in the gonad to phagocytose and resorb the residual gametes during the post-spawning period. The hemocyte mortality increased linearly from August (4.1%) to November (9.1%), as the histology revealed that the blood cockle completed spawning, and they resorbed the relict gametes. The granulocyte phagocytosis capacity declined dramatically from July (12.7%) to September (6.0%), when the cockles were engaged in active spawning. The flow cytometry revealed that the production of reactive oxygen species (ROS) from the granulocytes and the erythrocytes type II increased linearly from August (0.8-0.9 × 105 A U.) to December (2.1-2.8 × 105 A U.), which may cause stresses at a cellular level during this period. As the data indicated, spawning is a stressful activity inducing depressed immunological capacities in the blood cockles.
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Affiliation(s)
- Jeong-Hwa Kim
- Department of Marine Life Science (BK21 FOUR) and Marine Science Institute, Jeju National University, Jeju, 63243, Republic of Korea
| | - Hye-Mi Lee
- Department of Marine Life Science (BK21 FOUR) and Marine Science Institute, Jeju National University, Jeju, 63243, Republic of Korea
| | - Young-Ghan Cho
- Department of Marine Life Science (BK21 FOUR) and Marine Science Institute, Jeju National University, Jeju, 63243, Republic of Korea
| | - Jong-Seop Shin
- Department of Marine Life Science (BK21 FOUR) and Marine Science Institute, Jeju National University, Jeju, 63243, Republic of Korea
| | - Jae-Won Yoo
- Korea Institute of Coastal Ecology, Inc., Bucheon, 14449, Republic of Korea
| | - Hyun-Ki Hong
- Department of Marine Life Science (BK21 FOUR) and Marine Science Institute, Jeju National University, Jeju, 63243, Republic of Korea.
| | - Kwang-Sik Choi
- Department of Marine Life Science (BK21 FOUR) and Marine Science Institute, Jeju National University, Jeju, 63243, Republic of Korea
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Shi W, Sun S, Han Y, Tang Y, Zhou W, Zhang W, Du X, Huang L, Liu G. Microplastics hamper the fertilization success of a broadcast spawning bivalve through reducing gamete collision and gamete fusion efficiency. Aquat Toxicol 2022; 242:106049. [PMID: 34875489 DOI: 10.1016/j.aquatox.2021.106049] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Revised: 10/13/2021] [Accepted: 11/28/2021] [Indexed: 06/13/2023]
Abstract
By employing external fertilization (broadcast spawning) as a mating strategy, the gametes and subsequent fertilization of various marine invertebrates are directly subjected to pollution. Although microplastics (MPs) are ubiquitous in marine environments, their potential effects on the fertilization of broadcast spawners remain largely unknown. Therefore in this study, the impacts of polystyrene MPs on the fertilization success of broadcast spawning bivalve (Tegillarca granosa) were investigated. In order to reveal the underlying mechanisms affecting fertilization, the sperm swimming performance, sperm ATP status, sperm viability, DNA integrity, gamete collision probability, gamete fusion efficiency, enzymatic antioxidants, and key ion transport enzyme activities were analyzed. The results showed that MPs weakened the sperm swimming performance through reducing ATP production and cell viability, thus leading to the decreased probability of gamete collision. Furthermore, MPs affected ion transport in the gametes by inducing oxidative stress, which resulted in gamete fusion failure. In conclusion, this study demonstrates that MPs could significantly decrease the fertilization success of T. granosa through reducing gamete collision and lowering gamete fusion efficiency.
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Affiliation(s)
- Wei Shi
- College of Animal Sciences, Zhejiang University, Hangzhou, PR China
| | - Shuge Sun
- College of Animal Sciences, Zhejiang University, Hangzhou, PR China
| | - Yu Han
- College of Animal Sciences, Zhejiang University, Hangzhou, PR China
| | - Yu Tang
- College of Animal Sciences, Zhejiang University, Hangzhou, PR China
| | - Weishang Zhou
- College of Animal Sciences, Zhejiang University, Hangzhou, PR China
| | - Weixia Zhang
- College of Animal Sciences, Zhejiang University, Hangzhou, PR China
| | - Xueying Du
- College of Animal Sciences, Zhejiang University, Hangzhou, PR China
| | - Lin Huang
- College of Animal Sciences, Zhejiang University, Hangzhou, PR China
| | - Guangxu Liu
- College of Animal Sciences, Zhejiang University, Hangzhou, PR China.
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Liu G, Yang C, Liu J, Huang T, Lin L, Gu L, Li Z, Chen M. Functional characterization of a putative tumor necrosis factor superfamily member 10 in blood clam ( Tegillarca granosa). Dev Comp Immunol 2021; 124:104172. [PMID: 34271064 DOI: 10.1016/j.dci.2021.104172] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Revised: 06/08/2021] [Accepted: 06/10/2021] [Indexed: 06/13/2023]
Abstract
Tumor necrosis factor superfamily member 10 (TNFSF10), also known as tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) or Apo-2L, is one of the important members of the TNF superfamily. It is well demonstrated that TNFSF10 preferentially induces a variety of tumor cell apoptosis, and therefore exerts an important role in tumor immune surveillance. However, the function of TNFSF10 in pathogen defense is poorly understood, especially in invertebrates. The blood clam (Tegillarca granosa), an important commercial marine bivalve, plays an important ecological role in the marine ecosystem. The identification of immune genes will provide new perspective for disease control in the blood clam (T. granosa) farming. To better understand the biological function of TNFSF10 protein, the full-length cDNA of TNFSF10 homologous gene of T. granosa (TgTNFSF10) was cloned and identified for the first time, which was found to contain 1239 base pairs and encode 254 amino acids with a molecular weight of 29.5 kDa and a conserved TNF domain in the C-terminal. Quantitative RT-PCR analysis showed that TgTNFSF10 gene was constitutively expressed in all tested tissues, with the highest expression in hemocytes. LPS, Vibrio alginolyticus and Vibrio parahaemolyticus stimulations dramatically increased the expression of TgTNFSF10 in T. granosa (11.47-fold, 3.71-fold and 8.29-fold compared with the control respectively). In vitro experiments showed that recombinant TgTNFSF10 protein strongly inhibited the proliferation of HepG2 cells. Further confocal microscopy and flow cytometry analysis showed that obvious apoptosis occurred in TgTNFSF10-treated hemocytes and HepG2 cells. To sum up, our study demonstrated that TgTNFSF10 had strong apoptosis-inducing activity, which may participate in the innate immune response of T. granosa to pathogen invasion.
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Affiliation(s)
- Guosheng Liu
- State Key Laboratory Breeding Base of Marine Genetic Resources, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen, 361005, Fujian, PR China
| | - Chunyan Yang
- School of Life Science, Xiamen University, Xiamen, 361005, PR China
| | - Jinqiang Liu
- State Key Laboratory Breeding Base of Marine Genetic Resources, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen, 361005, Fujian, PR China
| | - Tengda Huang
- State Key Laboratory Breeding Base of Marine Genetic Resources, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen, 361005, Fujian, PR China
| | - Linjun Lin
- State Key Laboratory Breeding Base of Marine Genetic Resources, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen, 361005, Fujian, PR China
| | - Li Gu
- State Key Laboratory Breeding Base of Marine Genetic Resources, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen, 361005, Fujian, PR China
| | - Zengpeng Li
- State Key Laboratory Breeding Base of Marine Genetic Resources, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen, 361005, Fujian, PR China.
| | - Mingliang Chen
- State Key Laboratory Breeding Base of Marine Genetic Resources, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen, 361005, Fujian, PR China; Co-Innovation Center of Jiangsu Marine Bio-industry Technology, Jiangsu Ocean University, Lianyungang, 222005, PR China.
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28
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Kim JH, Lee HM, Cho YG, Shin JS, You JW, Choi KS, Hong HK. Flow cytometric characterization of the hemocytes of blood cockles Anadara broughtonii (Schrenck, 1867), Anadara kagoshimensis (Lischke, 1869), and Tegillarca granosa (Linnaeus, 1758) as a biomarker for coastal environmental monitoring. Mar Pollut Bull 2020; 160:111654. [PMID: 33181933 DOI: 10.1016/j.marpolbul.2020.111654] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2020] [Revised: 08/24/2020] [Accepted: 09/05/2020] [Indexed: 06/11/2023]
Abstract
Marine bivalves are often used as a sentinel species in coastal environmental monitoring since changes in the environmental quality are often well preserved in their cells and tissues. Anadara and Tegillarca species of Arcidae, the blood cockles, are considered to be good sentinel species in monitoring coastal pollution and ecosystem health because they are distributed widely in the subsurface of intertidal mudflats. Internal cellular defense of the blood cockles to physical and biological stresses is mediated by the circulating hemocytes, while their hemocyte types and functions are poorly studied. In this study, we first characterized morphology and immune-related activities of hemocytes of three common blood cockles Anadara broughtonii, A. kagoshimensis, and Tegillarca granosa using flow cytometry. Based on cell morphology and immunological functions, we described five types of hemocytes identically in the three blood cockles: erythrocytes type-I (erythrocytes-I), erythrocytes type-II (erythrocytes-II), granulocytes, hyalinocytes, and blast-like cells. Erythrocytes were round cells containing hemoglobin with numerous granules in the cytoplasm and these cells consist of two central populations. Erythrocytes-I were the most abundant cells accounting for 80-89% of the total circulating hemocytes and exhibited a certain level of lysosome and oxidative capacity. Erythrocytes-II were the largest cells and displayed high lysosome content and the most active oxidative capacity. Both erythrocytes-I and erythrocytes-II did not show phagocytosis capacity. Granulocytes were intermediated-sized hemocytes characterized by granules in the cytoplasm and long pseudopodia on the cell surface, and these cells were mainly engaged in the cellular defense exhibiting the largest lysosome content, the most active phagocytosis, and high oxidative capacity. Contrary to granulocytes, hyalinocytes were comparatively small and round cells and exhibited no granules in the cytoplasm. Hyalinocytes displayed a certain level of lysosome and phagocytosis and oxidative capacities. Blast-like cells characterized by the smallest size and small quantity of cytoplasm and exhibited an absence of phagocytosis and extremely low oxidative capacity, suggesting that this population is not directly involved in the cell-mediated immune activities. In conclusion, flow cytometry indicated that three blood cockles had five types of hemocytes, and the erythrocytes and granulocytes were mainly involved in the immunological activities.
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Affiliation(s)
- Jeong-Hwa Kim
- Department of Marine Life Science (BK21 PLUS) and Marine Science Institute, Jeju National University, Jeju 63243, Republic of Korea
| | - Hye-Mi Lee
- Department of Marine Life Science (BK21 PLUS) and Marine Science Institute, Jeju National University, Jeju 63243, Republic of Korea
| | - Young-Ghan Cho
- Department of Marine Life Science (BK21 PLUS) and Marine Science Institute, Jeju National University, Jeju 63243, Republic of Korea
| | - Jong-Seop Shin
- Department of Marine Life Science (BK21 PLUS) and Marine Science Institute, Jeju National University, Jeju 63243, Republic of Korea
| | - Jae-Won You
- Korea Institute of Coastal Ecology, Inc., Bucheon 14449, Republic of Korea
| | - Kwang-Sik Choi
- Department of Marine Life Science (BK21 PLUS) and Marine Science Institute, Jeju National University, Jeju 63243, Republic of Korea
| | - Hyun-Ki Hong
- Department of Marine Life Science (BK21 PLUS) and Marine Science Institute, Jeju National University, Jeju 63243, Republic of Korea.
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Li G, Zhan J, Xu A, Tan B, Sun N, Wang C, Jia R, Li C, Zhang J, Yang W. Determination of the iron bioavailability, conformation, and rheology of iron-binding proteins from Tegillarca granosa. J Food Biochem 2020; 45:e13517. [PMID: 33118623 DOI: 10.1111/jfbc.13517] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Revised: 09/17/2020] [Accepted: 09/21/2020] [Indexed: 11/27/2022]
Abstract
The increased interest in achieving, solely through diet, the same effect on iron levels with supplementation, leads to numerous studies on iron absorption of iron binding proteins (IBPs). The characteristics of IBPs from Tegillarca granosa (T. granosa) and its iron utilization were determined to analyze their relationship. The results showed in T. granosa, Fe(ӀӀ) was main iron form in hemoglobin (TH) and that Fe(ӀӀ) and Fe(ӀӀӀ) coexisted in ferritin (TF). After in vitro digestion, TH was easier to be digested than TF, bovine hemoglobin, and bovine ferritin. In caco-2 cells model, iron bioavailability of TH also was the best, which related to TH's superior fluid properties, higher ratios of α-helix to β-sheet and amide I to amide II. These suggest TH could be used as a good source of organic iron and provide references for application of T. granosa in human nutrition. PRACTICAL APPLICATIONS: This research investigated the iron bioavailability and structural properties of iron-binding proteins from Tegillarca granosa (T. granosa). Moreover, the effects of iron absorption in bovine hemoglobin and ferritin were compared with those from T. granosa. The results showed the hemoglobin in T. granosa had better iron bioavailability and it could be a good source of iron. These data could provide a basic instruction of the application of T. granosa in functional food production.
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Affiliation(s)
- Gaoshang Li
- College of Food and Pharmaceutical Sciences, Ningbo University, Ningbo, China.,Key Laboratory of Animal Protein Food Deep Processing Technology of Zhejiang Province, Ningbo University, Ningbo, China
| | - Junqi Zhan
- College of Food and Pharmaceutical Sciences, Ningbo University, Ningbo, China
| | - Anqi Xu
- College of Food and Pharmaceutical Sciences, Ningbo University, Ningbo, China
| | - Beibei Tan
- College of Food and Pharmaceutical Sciences, Ningbo University, Ningbo, China
| | - Nan Sun
- College of Food and Pharmaceutical Sciences, Ningbo University, Ningbo, China
| | - Chen Wang
- College of Food and Pharmaceutical Sciences, Ningbo University, Ningbo, China
| | - Ru Jia
- College of Food and Pharmaceutical Sciences, Ningbo University, Ningbo, China
| | - Chao Li
- College of Food and Pharmaceutical Sciences, Ningbo University, Ningbo, China
| | - Jinjie Zhang
- College of Food and Pharmaceutical Sciences, Ningbo University, Ningbo, China
| | - Wenge Yang
- College of Food and Pharmaceutical Sciences, Ningbo University, Ningbo, China.,Key Laboratory of Animal Protein Food Deep Processing Technology of Zhejiang Province, Ningbo University, Ningbo, China
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Shi W, Han Y, Sun S, Tang Y, Zhou W, Du X, Liu G. Immunotoxicities of microplastics and sertraline, alone and in combination, to a bivalve species: size-dependent interaction and potential toxication mechanism. J Hazard Mater 2020; 396:122603. [PMID: 32289642 DOI: 10.1016/j.jhazmat.2020.122603] [Citation(s) in RCA: 81] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Revised: 03/22/2020] [Accepted: 03/26/2020] [Indexed: 06/11/2023]
Abstract
Although coexposure to pharmaceuticals and microplastics (MPs) may frequently occur, the synergistic impact of MPs and antidepressants on marine species still remains poorly understood. In this study, the immunotoxicities of polystyrene MPs (diameters 500 nm and 30 μm) and sertraline (Ser), alone and in combination, were investigated in a bivalve mollusk Tegillarca granosa. Results showed that both MPs and Ser significantly suppressed the immune responses of T. granosa. In addition, though the toxic effect of Ser was not affected by microscale MPs, an evident synergistic immuno-toxic effect was observed between Ser and nanoscale MPs, which indicates a size-dependent interaction between the two. To further ascertain the underlying toxication mechanisms, the intracellular content of reactive oxygen species, apoptosis status, ATP content, pyruvate kinase activity, plasma cortisol level, and in vivo concentrations of neurotransmitters and cytochrome P450 1A1 were analysed. A transcriptomic analysis was also performed to reveal global molecular alterations following Ser and/or MPs exposure. The obtained results indicated that the presence of nanoscale MPs may enhance the immunotoxicity of Ser by (i) inducing apoptosis of haemocytes and, hence, reducing the THC; (ii) constraining the energy availability for phagocytosis; and (iii) hampering the detoxification of Ser.
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Affiliation(s)
- Wei Shi
- College of Animal Sciences, Zhejiang University, Hangzhou, PR China
| | - Yu Han
- College of Animal Sciences, Zhejiang University, Hangzhou, PR China
| | - Shuge Sun
- College of Animal Sciences, Zhejiang University, Hangzhou, PR China
| | - Yu Tang
- College of Animal Sciences, Zhejiang University, Hangzhou, PR China
| | - Weishang Zhou
- College of Animal Sciences, Zhejiang University, Hangzhou, PR China
| | - Xueying Du
- College of Animal Sciences, Zhejiang University, Hangzhou, PR China
| | - Guangxu Liu
- College of Animal Sciences, Zhejiang University, Hangzhou, PR China.
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Yang M, Chen M, Liu G, Yang C, Li Z. Molecular cloning and characterization of a cDNA encoding extracellular signal-regulated kinase (ERK) from the blood clam Tegillarca granosa. Dev Comp Immunol 2020; 105:103602. [PMID: 31918206 DOI: 10.1016/j.dci.2019.103602] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Revised: 12/27/2019] [Accepted: 12/27/2019] [Indexed: 06/10/2023]
Abstract
The blood clam Tegillarca granosa is a member of the most economically important bivalve mollusk species in the Asia-Pacific region. T. granosa entirely depends on innate immunity for pathogen defense. However, there are very few reports on the immune responses of T. granosa to various pathogens. In our study, we cloned and characterized an ERK homolog from T. granosa, which was defined as TgERK. The full-length cDNA sequence of TgERK was 1644 bp in length and encoded a conserved S_TKc domain (residues 21-309) in the N terminus. The TgERK mRNA was universally expressed in all examined tissues, with the highest expression level found in hemocytes. Lipopolysaccharide (LPS) and Vibrio alginolyticus challenges strongly enhanced the expression of ERK in T. granosa, which was consistent with the results of an in vitro challenge study with cultured T. granosa hemocytes. Pathogen invasion also upregulated the expression of downstream genes in the ERK signaling pathway, such as CREB, c-Fos and SIRT1. Moreover, TgERK knockdown resulted in decreased expression of these downstream genes. Inhibition of ERK by its inhibitor U0126 decreased T. granosa hemocyte viability in a dose-dependent manner. Taken together, our results demonstrated that TgERK was a crucial regulator of the immune response to pathogen invasion, which indicated new knowledge of hemocyte immunity in T. granosa and provided a novel key molecule in immune regulation for controlling diseases in T. granosa aquaculture.
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Affiliation(s)
- Minghan Yang
- State Key Laboratory Breeding Base of Marine Genetic Resources, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen, 361005, PR China
| | - Mingliang Chen
- State Key Laboratory Breeding Base of Marine Genetic Resources, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen, 361005, PR China; Co-Innovation Center of Jiangsu Marine Bio-industry Technology, Jiangsu Ocean University, Lianyungang, 222005, PR China.
| | - Guosheng Liu
- State Key Laboratory Breeding Base of Marine Genetic Resources, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen, 361005, PR China
| | - Chunyan Yang
- School of Life Science, Xiamen University, Xiamen, 361005, PR China.
| | - Zengpeng Li
- State Key Laboratory Breeding Base of Marine Genetic Resources, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen, 361005, PR China.
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Liu G, Li Z, Yang M, Lin L, Liu J, Chen M. Functional characterization of a putative lipopolysaccharide-induced TNF-alpha factor (LITAF) from blood clam Tegillarca granosa in innate immunity. Fish Shellfish Immunol 2020; 97:390-402. [PMID: 31866450 DOI: 10.1016/j.fsi.2019.12.051] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Revised: 09/30/2019] [Accepted: 12/17/2019] [Indexed: 06/10/2023]
Abstract
Lipopolysaccharide-induced TNF-alpha factor (LITAF), as a transcription factor, activates the transcription of TNF and other cytokines in inflammatory response upon lipopolysaccharide (LPS) stimulation. In the present study, we cloned and identified the full-length cDNA of LITAF homolog from blood clam Tegillarca granosa for the first time. The full-length cDNA of TgLITAF was 1801 bp encoding a polypeptide of 147 amino acids with an estimated molecular mass of 16.13 kDa. TgLITAF contained a zf-LITAF-like zinc ribbon domain at the C-terminal of the protein and the TgLITAF domain showed 48-74% amino acid sequence identity with other known LITAFs from other species. Subcellular localization study showed that TgLITAF was mainly expressed in the nucleus. qRT-PCR analysis showed that the TgLITAF transcription expressed constitutively in all the examined tissues with the highest expression level in the gills. After LPS or V. alginolyticus treatment, expression of TgLITAF in hemocytes was both up-regulated significantly at 3-6 h. Furthermore, in vitro study indicated that overexpression of TgLITAF in HeLa cells resulted in the activation of TNFα, p53, and influenced the expression levels of apoptotic-related genes Bax, Bcl-2, Caspase-3, Caspase-6, and Caspase-7. The proliferation of HeLa cells was inhibited by overexpression of TgLITAF. Apoptotic fluorescence assay further revealed that TgLITAF participated in the apoptotic process of HeLa cells. Western blotting analysis showed that overexpression of TgLITAF increased endogenous level of cleaved Caspase-7. Taken together, these results revealed that TgLITAF participates in the innate immune response to the pathogen invasion in blood clams and induces apoptosis in HeLa cells.
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Affiliation(s)
- Guosheng Liu
- State Key Laboratory Breeding Base of Marine Genetic Resources, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen, 361005, Fujian, PR China
| | - Zengpeng Li
- State Key Laboratory Breeding Base of Marine Genetic Resources, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen, 361005, Fujian, PR China
| | - Minghan Yang
- State Key Laboratory Breeding Base of Marine Genetic Resources, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen, 361005, Fujian, PR China
| | - Linjun Lin
- State Key Laboratory Breeding Base of Marine Genetic Resources, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen, 361005, Fujian, PR China
| | - Jinqiang Liu
- State Key Laboratory Breeding Base of Marine Genetic Resources, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen, 361005, Fujian, PR China
| | - Mingliang Chen
- State Key Laboratory Breeding Base of Marine Genetic Resources, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen, 361005, Fujian, PR China; Co-Innovation Center of Jiangsu Marine Bio-industry Technology, Jiangsu Ocean University, Lianyungang, 222005, PR China.
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Shi W, Han Y, Guan X, Rong J, Du X, Zha S, Tang Y, Liu G. Anthropogenic Noise Aggravates the Toxicity of Cadmium on Some Physiological Characteristics of the Blood Clam Tegillarca granosa. Front Physiol 2019; 10:377. [PMID: 31001147 PMCID: PMC6456685 DOI: 10.3389/fphys.2019.00377] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2018] [Accepted: 03/18/2019] [Indexed: 12/30/2022] Open
Abstract
Widespread applications of cadmium (Cd) in various products have caused Cd contamination in marine ecosystems. Meanwhile, human activities in the ocean have also generated an increasing amount of noise in recent decades. Although anthropogenic noise and Cd contaminants could be present simultaneously in marine environments, the physiological responses of marine bivalve mollusks upon coexposure to anthropogenic noise and toxic metal contaminants, including Cd remain unclear. Therefore, the combined effects of anthropogenic noise and Cd on the physiological characteristics of the blood clam Tegillarca granosa were investigated in this study. The results showed that 10 days of coexposure to anthropogenic noise and Cd can enhance adverse impacts on metabolic processes, as indicated by the clearance rate, respiration rate, ammonium excretion rate, and O:N ratio of T. granosa. In addition, both the ATP content, ATP synthase activity and genes encoding important enzymes in ATP synthesis significantly declined after coexposures to anthropogenic noise and Cd, which have resulted from reduced feeding activity and respiration. Furthermore, the expressions of neurotransmitter-related genes (MAO, AChE, and mAChR3) were all significantly down-regulated after coexposure to anthropogenic noise and Cd, which suggests an enhanced neurotoxicity under coexposure. In conclusion, our study demonstrated that anthropogenic noise and Cd would have synergetic effects on the feeding activity, metabolism, and ATP synthesis of T. granosa, which may be due to the add-on of stress responses and neurotransmitter disturbances.
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Affiliation(s)
- Wei Shi
- College of Animal Science, Zhejiang University, Hangzhou, China
| | - Yu Han
- College of Animal Science, Zhejiang University, Hangzhou, China
| | - Xiaofan Guan
- College of Animal Science, Zhejiang University, Hangzhou, China
| | - Jiahuan Rong
- College of Animal Science, Zhejiang University, Hangzhou, China
| | - Xueying Du
- College of Animal Science, Zhejiang University, Hangzhou, China
| | - Shanjie Zha
- College of Animal Science, Zhejiang University, Hangzhou, China
| | - Yu Tang
- College of Animal Science, Zhejiang University, Hangzhou, China
| | - Guangxu Liu
- College of Animal Science, Zhejiang University, Hangzhou, China
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Shi W, Guan X, Han Y, Zha S, Fang J, Xiao G, Yan M, Liu G. The synergic impacts of TiO 2 nanoparticles and 17β-estradiol (E2) on the immune responses, E2 accumulation, and expression of immune-related genes of the blood clam, Tegillarca granosa. Fish Shellfish Immunol 2018; 81:29-36. [PMID: 29981881 DOI: 10.1016/j.fsi.2018.07.009] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2018] [Revised: 06/28/2018] [Accepted: 07/04/2018] [Indexed: 06/08/2023]
Abstract
The extensive use of TiO2 nanoparticles (nTiO2) in industrial products has led to their release into the marine environment, thereby posing a potential risk to marine organisms. However, in addition to affecting marine organisms through its inherent properties, nTiO2 can also act as a vehicle for other toxic pollutants due to their strong adsorption ability through the "Trojan horse" effect. Due to their potential hazard, the endocrine disrupting chemicals (EDCs) such as 17β-estradiol (E2), have been considered as one of the most serious anthropogenic threats to biodiversity and ecosystem health. However, there is still a lack of knowledge regarding the possible synergistic effects of nTiO2 and endocrine disrupting chemicals (EDCs) on marine organisms to date. Therefore, the combined effects of nTiO2 and 17β-estradiol (E2) on the immune responses of the blood clam, Tegillarca granosa, were investigated in this study. After 10 days of treatment, the total number, phagocytic activity, red granulocytes ratio, and the phagocytosis of hemocytes were significantly reduced in almost all treatment groups. Furthermore, expressions of genes from NFκβ and Toll-like receptor signaling pathways were significantly altered after exposure to nTiO2 and/or E2, indicating a reduced sensitivity to pathogen challenges. In addition, compared to exposure to E2 alone, co-exposure to E2 and nTiO2 led to a significant increase in the content of alkali-labile phosphate (ALP) in hemolymph, suggesting an enhanced E2 bioconcentration in the presence of nTiO2. In general, the present study demonstrated that nTiO2 enhanced the immunotoxicity of E2 to the blood clam, which may be due to the increased E2 uptake in the presence of nTiO2.
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Affiliation(s)
- Wei Shi
- College of Animal Sciences, Zhejiang University, Hangzhou, PR China
| | - Xiaofan Guan
- College of Animal Sciences, Zhejiang University, Hangzhou, PR China
| | - Yu Han
- College of Animal Sciences, Zhejiang University, Hangzhou, PR China
| | - Shanjie Zha
- College of Animal Sciences, Zhejiang University, Hangzhou, PR China
| | - Jun Fang
- Mariculture Research Institute of Zhejiang Province, Wenzhou, PR China
| | - Guoqiang Xiao
- Mariculture Research Institute of Zhejiang Province, Wenzhou, PR China
| | - Maocang Yan
- Mariculture Research Institute of Zhejiang Province, Wenzhou, PR China
| | - Guangxu Liu
- College of Animal Sciences, Zhejiang University, Hangzhou, PR China.
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Song D, Lin Z, Yuan Y, Qian G, Li C, Bao Y. DPEP1 Balance GSH Involve in Cadmium Stress Response in Blood Clam Tegillarca granosa. Front Physiol 2018; 9:964. [PMID: 30079033 PMCID: PMC6062768 DOI: 10.3389/fphys.2018.00964] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Accepted: 06/29/2018] [Indexed: 12/13/2022] Open
Abstract
The blood clam, Tegillarca granosa, is a benthic filter feeder with a strong capacity to accumulate and tolerate cadmium (Cd). In our previous study, DPEP1 was shown to be significantly up-regulated under Cd stress based on proteomic analysis. To investigate whether DPEP1 is involved in Cd-induced response, the function of DPEP1 in T. granosa was investigated by integrated molecular and protein approaches. Rapid amplification cDNA end (RACE) assay was established to achieve the complete cDNA sequence of DPEP1 from T. granosa. The full-length cDNA of DPEP1 was 1811 bp, and it contained a 1359-bp open reading frame (ORF), including a 22-amino acid signal peptide. qRT-PCR analysis revealed that DPEP1 was expressed in all examined tissues with the highest expression in gills. At the same time, we investigated DPEP1 gene expression changes after Cd stress at different time points over 96 h. We found that the expression of DPEP1 increased upon initial Cd stress, then it was inhibited, and finally, it was maintained at a low level. Moreover, recombinant DPEP1 showed that higher glutathione (GSH) hydrolysis activity in the temperature range of 30–40°C, and its maximum activity was at pH = 6. Additionally, the results of immunohistochemistry also confirmed that DPEP1 protein was expressed in all test tissues with the highest expression in gills. In addition, there was a positive correlation between QRT-PCR and immunohistochemistry. These results suggested that DPEP1 is probably involved in Cd-induced response by balancing GSH.
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Affiliation(s)
- Danli Song
- Zhejiang Key Laboratory of Aquatic Germplasm Resources, College of Biological & Environmental Sciences, Zhejiang Wanli University, Ningbo, China.,School of Marine Sciences, Ningbo University, Ningbo, China
| | - Zhihua Lin
- Zhejiang Key Laboratory of Aquatic Germplasm Resources, College of Biological & Environmental Sciences, Zhejiang Wanli University, Ningbo, China
| | - Yongjun Yuan
- Zhejiang Key Laboratory of Aquatic Germplasm Resources, College of Biological & Environmental Sciences, Zhejiang Wanli University, Ningbo, China
| | - Guang Qian
- Zhejiang Key Laboratory of Aquatic Germplasm Resources, College of Biological & Environmental Sciences, Zhejiang Wanli University, Ningbo, China.,School of Marine Sciences, Ningbo University, Ningbo, China
| | - Chenghua Li
- School of Marine Sciences, Ningbo University, Ningbo, China
| | - Yongbo Bao
- Zhejiang Key Laboratory of Aquatic Germplasm Resources, College of Biological & Environmental Sciences, Zhejiang Wanli University, Ningbo, China
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Dong Y, Yao H, Zhou X, Lin Z. Genetic analysis assessed by microsatellites for a diallel mating design of two geographical stocks of the blood clam Tegillarca granosa. Genes Genomics 2018; 40:373-379. [PMID: 29892837 DOI: 10.1007/s13258-017-0636-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2017] [Accepted: 11/14/2017] [Indexed: 10/18/2022]
Abstract
To determine the potential for productive efficiency and genetic improvement in the blood clam Tegillarca granosa, four offspring populations (ZZ, ZK, KZ and KK) were produced from a diallel mating of two different geographical stocks (Z and K). The levels of genetic diversity and population structures of four populations were analyzed using 14 polymorphic microsatellites. The results showed that the mean observed heterozygosities (Ho) of reciprocal cross populations (ZK and KZ) was higher than those of pure populations(ZZ and KK). The largest values of genetic differentiation coefficient (Fst = 0.067) and Nei's unbiased genetic distance (Dc = 0.263) were between ZK and KZ, and the smallest (Fst = 0.020, Dc = 0.116) were between ZZ and KK, which revealed that the largest genetic divergence was between the two reciprocal cross populations and the smallest was between two pure populations. This study demonstrated that the reciprocal cross populations of T. granosa had an extensive genetic difference and improvement, which may be advantageous for future breeding studies.
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Affiliation(s)
- Yinghui Dong
- Zhejiang Key Laboratory of Aquatic Germplasm Resources, College of Biological and Environmental Sciences, Zhejiang Wanli University, Ningbo, People's Republic of China.
| | - Hanhan Yao
- Zhejiang Key Laboratory of Aquatic Germplasm Resources, College of Biological and Environmental Sciences, Zhejiang Wanli University, Ningbo, People's Republic of China
| | - Xiaolong Zhou
- College of Fisheries and Life Sciences, Shanghai Ocean University, Shanghai, People's Republic of China
| | - Zhihua Lin
- Zhejiang Key Laboratory of Aquatic Germplasm Resources, College of Biological and Environmental Sciences, Zhejiang Wanli University, Ningbo, People's Republic of China
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Ji G, Ye P, Shi Y, Yuan L, Chen X, Yuan M, Zhu D, Chen X, Hu X, Jiang J. Laser-Induced Breakdown Spectroscopy for Rapid Discrimination of Heavy-Metal-Contaminated Seafood Tegillarca granosa. Sensors (Basel) 2017; 17:E2655. [PMID: 29149053 DOI: 10.3390/s17112655] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/14/2017] [Revised: 11/05/2017] [Accepted: 11/09/2017] [Indexed: 02/01/2023]
Abstract
Tegillarca granosa samples contaminated artificially by three kinds of toxic heavy metals including zinc (Zn), cadmium (Cd), and lead (Pb) were attempted to be distinguished using laser-induced breakdown spectroscopy (LIBS) technology and pattern recognition methods in this study. The measured spectra were firstly processed by a wavelet transform algorithm (WTA), then the generated characteristic information was subsequently expressed by an information gain algorithm (IGA). As a result, 30 variables obtained were used as input variables for three classifiers: partial least square discriminant analysis (PLS-DA), support vector machine (SVM), and random forest (RF), among which the RF model exhibited the best performance, with 93.3% discrimination accuracy among those classifiers. Besides, the extracted characteristic information was used to reconstruct the original spectra by inverse WTA, and the corresponding attribution of the reconstructed spectra was then discussed. This work indicates that the healthy shellfish samples of Tegillarca granosa could be distinguished from the toxic heavy-metal-contaminated ones by pattern recognition analysis combined with LIBS technology, which only requires minimal pretreatments.
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Shi W, Han Y, Guo C, Zhao X, Liu S, Su W, Wang Y, Zha S, Chai X, Liu G. Ocean acidification hampers sperm-egg collisions, gamete fusion, and generation of Ca 2+ oscillations of a broadcast spawning bivalve, Tegillarca granosa. Mar Environ Res 2017; 130:106-112. [PMID: 28750793 DOI: 10.1016/j.marenvres.2017.07.016] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2017] [Revised: 07/15/2017] [Accepted: 07/18/2017] [Indexed: 06/07/2023]
Abstract
Although the effect of ocean acidification on fertilization success of marine organisms is increasingly well documented, the underlying mechanisms are not completely understood. The fertilization success of broadcast spawning invertebrates depends on successful sperm-egg collisions, gamete fusion, and standard generation of Ca2+ oscillations. Therefore, the realistic effects of future ocean pCO2 levels on these specific aspects of fertilization of Tegillarca granosa were investigated in the present study through sperm velocity trials, fertilization kinetics model analysis, and intracellular Ca2+ assays, respectively. Results obtained indicated that ocean acidification significantly reduced the fertilization success of T. granosa, which could be accountable by (i) decreased sperm velocity hence reducing the probability for sperm-egg collisions; (ii) lowered probability of gamete fusion for each gamete collision event; and (iii) disrupted intracellular Ca2+ oscillations.
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Affiliation(s)
- Wei Shi
- College of Animal Sciences, Zhejiang University, Hangzhou, PR China
| | - Yu Han
- College of Animal Sciences, Zhejiang University, Hangzhou, PR China
| | - Cheng Guo
- College of Animal Sciences, Zhejiang University, Hangzhou, PR China
| | - Xinguo Zhao
- College of Animal Sciences, Zhejiang University, Hangzhou, PR China
| | - Saixi Liu
- College of Animal Sciences, Zhejiang University, Hangzhou, PR China
| | - Wenhao Su
- College of Animal Sciences, Zhejiang University, Hangzhou, PR China
| | - Yichen Wang
- College of Animal Sciences, Zhejiang University, Hangzhou, PR China
| | - Shanjie Zha
- College of Animal Sciences, Zhejiang University, Hangzhou, PR China
| | - Xueliang Chai
- Zhejiang Mariculture Research Institute, Wenzhou, PR China
| | - Guangxu Liu
- College of Animal Sciences, Zhejiang University, Hangzhou, PR China.
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Zhao X, Shi W, Han Y, Liu S, Guo C, Fu W, Chai X, Liu G. Ocean acidification adversely influences metabolism, extracellular pH and calcification of an economically important marine bivalve, Tegillarca granosa. Mar Environ Res 2017; 125:82-89. [PMID: 28188988 DOI: 10.1016/j.marenvres.2017.01.007] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2016] [Revised: 01/24/2017] [Accepted: 01/30/2017] [Indexed: 06/06/2023]
Abstract
Oceanic uptake of CO2 from the atmosphere has significantly reduced surface seawater pH and altered the carbonate chemistry within, leading to global Ocean Acidification (OA). The blood clam, Tegillarca granosa, is an economically and ecologically significant marine bivalve that is widely distributed along the coastal and estuarine areas of Asia. To investigate the physiological responses to OA, blood clams were exposed to ambient and three reduced seawater pH levels (8.1, 7.8, 7.6 and 7.4) for 40 days, respectively. Results obtained suggest that OA suppresses the feeding activity and aerobic metabolism, but elevates proteins catabolism of blood clams. OA also causes extracellular acidosis and decreases haemolymph Ca2+ concentration. In addition, our data also suggest that OA impairs the calcification process and inner shell surface integrity. Overall, OA adversely influences metabolism, acid-base status and calcification of blood clams, subsequently leading to a decrease in the fitness of this marine bivalve species.
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Affiliation(s)
- Xinguo Zhao
- College of Animal Sciences, Zhejiang University, Hangzhou 310058, PR China
| | - Wei Shi
- College of Animal Sciences, Zhejiang University, Hangzhou 310058, PR China
| | - Yu Han
- College of Animal Sciences, Zhejiang University, Hangzhou 310058, PR China
| | - Saixi Liu
- College of Animal Sciences, Zhejiang University, Hangzhou 310058, PR China
| | - Cheng Guo
- College of Animal Sciences, Zhejiang University, Hangzhou 310058, PR China
| | - Wandong Fu
- Zhejiang Marine Development Research Institute, Zhoushan 316021, PR China
| | - Xueliang Chai
- Zhejiang Mariculture Research Institute, Wenzhou 325000, PR China
| | - Guangxu Liu
- College of Animal Sciences, Zhejiang University, Hangzhou 310058, PR China.
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Bao Y, Wang J, Li C, Li P, Wang S, Lin Z. A preliminary study on the antibacterial mechanism of Tegillarca granosa hemoglobin by derived peptides and peroxidase activity. Fish Shellfish Immunol 2016; 51:9-16. [PMID: 26876330 DOI: 10.1016/j.fsi.2016.02.004] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2015] [Revised: 01/30/2016] [Accepted: 02/05/2016] [Indexed: 05/16/2023]
Abstract
The blood clam, Tegillarca granosa, is one of the few bivalve molluscs containing hemoglobin (Hb). In the present study, we purified two types of T. granosa hemoglobin, Tg-HbI and Tg-HbII, using size exclusion chromatography and measured their antibacterial and peroxidase activities. We also tested antibacterial activities of peptides prepared by trypsin digestion of purified Tg-Hb and reversed-phase high-performance liquid chromatography purification. Purified Tg-HbI and Tg-HbII showed antibacterial activity against Escherichia coli, Pseudomonas putida, Bacillus subtilis, and Bacillus firmus, with differences in minimal inhibitory concentrations (MICs), but lacked antibacterial activity against Vibrio alginolyticus, Vibrio parahaemolyticus, Vibrio harveyi and Staphylococcus aureus. In contrast, 7 Tg-Hb derived peptides exhibited varying degrees of antibacterial activity against V. alginolyticus (MICs: 12-200 μg/ml), V. parahaemolyticus (11-100 μg/ml) and V. harveyi (1-200 μg/ml). The antibacterial activity of Hb derived peptides was confirmed by fluorescence microscopy. In addition, peroxidase activity was detected in Tg-HbI and Tg-HbII. The results indicated that in addition to functioning as a respiratory protein T. granosa hemoglobins likely play a role in host antibacterial defense probably via a peroxidase activity of native molecules and some internal peptides released from the proteins.
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Affiliation(s)
- Yongbo Bao
- Zhejiang Key Laboratory of Aquatic Germplasm Resources, College of Biological & Environmental Sciences, Zhejiang Wanli University, Zhejiang 315100, PR China
| | - Juanjuan Wang
- Zhejiang Key Laboratory of Aquatic Germplasm Resources, College of Biological & Environmental Sciences, Zhejiang Wanli University, Zhejiang 315100, PR China; School of Marine Sciences, Ningbo University, Ningbo, Zhejiang 315211, PR China
| | - Chenghua Li
- School of Marine Sciences, Ningbo University, Ningbo, Zhejiang 315211, PR China
| | - Peifen Li
- Zhejiang Key Laboratory of Aquatic Germplasm Resources, College of Biological & Environmental Sciences, Zhejiang Wanli University, Zhejiang 315100, PR China; School of Marine Sciences, Ningbo University, Ningbo, Zhejiang 315211, PR China
| | - Sufang Wang
- Zhejiang Key Laboratory of Aquatic Germplasm Resources, College of Biological & Environmental Sciences, Zhejiang Wanli University, Zhejiang 315100, PR China.
| | - Zhihua Lin
- Zhejiang Key Laboratory of Aquatic Germplasm Resources, College of Biological & Environmental Sciences, Zhejiang Wanli University, Zhejiang 315100, PR China.
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Huang L, Liu SL, Zheng JW, Li HY, Liu JS, Yang WD. P-glycoprotein and its inducible expression in three bivalve species after exposure to Prorocentrum lima. Aquat Toxicol 2015; 169:123-132. [PMID: 26539802 DOI: 10.1016/j.aquatox.2015.10.012] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2015] [Revised: 10/14/2015] [Accepted: 10/16/2015] [Indexed: 06/05/2023]
Abstract
P-glycoprotein (P-gp or ABCB1) belongs to the family of ATP-binding cassette (ABC) transporters responsible for multixenobiotic resistance (MXR) in aquatic organisms. To provide more information of P-gp in shellfish, in this study, complete cDNA of P-gp in three bivalve species including Ruditapes philippinarum, Scapharca subcrenata and Tegillarca granosa were cloned and its expressions in gill, digestive gland, adductor muscle and mantle of the three bivalves were detected after exposure to Prorocentrum lima, a toxogenic dinoflagellate. The complete sequences of R. philippinarum, S. subcrenata and T. granosa P-gp showed high homology with MDR/P-gp/ABCB proteins from other species, having a typical sequence organization as full transporters from the ABCB family. Phylogenetic analyses revealed that the amino acid sequences of P-gp from S. subcrenata and T. granosa had a closest relationship, forming an independent branch, then grouping into the other branch with Mytilus californianus, Mytilus galloprovincialis and Crassostrea gigas. However, P-gp sequences from R. philippinarum were more similar to the homologs from the more distantly related Aplysia californica than to homologs from S. subcrenata and T. granosa, suggesting that bivalves P-gp might have different paralogs. P-glycoprotein expressed in all detected tissues but there were large differences between them. After exposure to P. lima, the expression of P-gp changed in the four tissues in varying degrees within the same species and between different species, but the changes in mRNA and protein level were not always synchronous.
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Affiliation(s)
- Lu Huang
- College of Life Science and Technology, Key Laboratory of Aquatic Eutrophication and Control of Harmful Algal Blooms of Guangdong Higher Education Institute, Jinan University, Guangzhou 510632, China; Department of Pathology, Xinqiao Hospital, Third Military Medical University, Chongqing 400037, China
| | - Su-Li Liu
- College of Life Science and Technology, Key Laboratory of Aquatic Eutrophication and Control of Harmful Algal Blooms of Guangdong Higher Education Institute, Jinan University, Guangzhou 510632, China
| | - Jian-Wei Zheng
- College of Life Science and Technology, Key Laboratory of Aquatic Eutrophication and Control of Harmful Algal Blooms of Guangdong Higher Education Institute, Jinan University, Guangzhou 510632, China
| | - Hong-Ye Li
- College of Life Science and Technology, Key Laboratory of Aquatic Eutrophication and Control of Harmful Algal Blooms of Guangdong Higher Education Institute, Jinan University, Guangzhou 510632, China
| | - Jie-Sheng Liu
- College of Life Science and Technology, Key Laboratory of Aquatic Eutrophication and Control of Harmful Algal Blooms of Guangdong Higher Education Institute, Jinan University, Guangzhou 510632, China
| | - Wei-Dong Yang
- College of Life Science and Technology, Key Laboratory of Aquatic Eutrophication and Control of Harmful Algal Blooms of Guangdong Higher Education Institute, Jinan University, Guangzhou 510632, China.
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Wang J, Wei L, Han Y, Qin D, Yang Q, Ju X. The impact of Tegillarca granosa extract haishengsu on HL-60 cell. Open Med (Wars) 2015; 10:329-334. [PMID: 28352714 PMCID: PMC5152984 DOI: 10.1515/med-2015-0048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2015] [Accepted: 05/25/2015] [Indexed: 11/23/2022] Open
Abstract
Haishengsu (Hss) is a purified protein from Tegillarca granosa that has been used as a traditional Chinese medicine to treat cancer for more than a century. In this study, we observed the impact of Haishengsu (Hss) on the proliferation and differentiation of HL-60 cells in the leukemic cell line by taking tretinoin and AS2O3 as a positive control and making a comparative analysis between the effect of Hss and tretinoin and AS2O3. We found that Hss could significantly inhibit the proliferation of HL-60 cells and caused most of the cells to stay in the G0/G1 phase. Its effect was much stronger than that of tretinoin and AS2O3, and the ability of Hss to induce differentiation was close to tretinoin. Hss functions probably by inhibiting the expression of the Bcl-2 and MPO genes and further promoting the expression of the Bax gene. Hss has a significant effect on both inhibiting the proliferation and inducing the differentiation of HL-60 cells. It is possible that Hss may be a new kind of clinical differentiation inducer.
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Affiliation(s)
- Jinshen Wang
- Department of Pediatric Hematology, Qilu Hospital, Shandong University, Jinan, Shandong, 250000, P.R.China. Department of Pediatric, Liaocheng People's Hospital, Liaocheng, Shandong, 252000, P.R.China
| | - Lixia Wei
- Department of Pediatric, Liaocheng People's Hospital, Liaocheng, Shandong, 252000, P.R.China
| | - Yueqin Han
- Department of Pediatric, Liaocheng People's Hospital, Liaocheng, Shandong, 252000, P.R.China
| | - Daogang Qin
- Department of Pediatric, Liaocheng People's Hospital, Liaocheng, Shandong, 252000, P.R.China
| | - Qiaozhi Yang
- Department of Pediatric, Liaocheng People's Hospital, Liaocheng, Shandong, 252000, P.R.China
| | - Xiuli Ju
- Department of Pediatric Hematology, Qilu Hospital, Shandong University, 107 West Wenhua Rd, Jinan, Shandong 250012, China; Tel:+86 13184177168. Cryomedicine Laboratory of Qilu Hospital of Shandong University, Jinan, Shandong, 250000, P.R.China
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