Immunomodulation by dietary β-1, 3-glucan in the brooders of the black tiger shrimpPenaeus monodon

Chang, Chih-Kai; Chen, Houng-Yung; Su, Mao-Sen; Liao, I-Chiu

doi:10.1006/fsim.2000.0266

Cited by 165 publications

(114 citation statements)

References 19 publications

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“…Although some authors (Chang et al, 2000;López et al, 2003) have suggested that a continuous exposure to betaglucans can result in immunological fatigue, our results do not indicate the same. In spite of the lack of statistical significance, even at harvest shrimp from IMNV-BetG had a phenoloxidase activity 38.5% higher than the Com group.…”

Section: Discussioncontrasting

confidence: 99%

“…Chang et al (2000) reported that Penaeus monodon broodstock fed betaglucansupplemented diets reached higher survival rates when compared with a control group. Rodríguez et al (2007) also found an increase in L. vannamei survival after rearing larvae in 0.2-ha ponds that had been exposed to a combination of probiotics and β-1,3/1,6-glucans for 15 days before a per os challenge with WSSV (White spot syndrome virus).…”

Section: Discussionmentioning

confidence: 99%

“…However, according to Chang et al (2000), the continuous exposure to betaglucan-supplemented diets may lead to immunological fatigue in shrimp. These authors reported that 24 days after exposure to diets containing 2,000 mg/kg of β-1,3-glucan, Penaeus monodon broodstock (135±25 g) showed a reduction in phagocytic activity and in the production of O 2 in the hemolymph.…”

Section: Discussionmentioning

confidence: 99%

“…Several compounds have been reported to actively promote immunological responses and increase survival in cultured penaeids after viral or bacterial challenge. This includes peptidoglycans , glucans (Sung et al, 1994;Song et al, 1997;Huang and Song, 1999;Chang et al, 2000;López et al, 2003;Rodríguez et al, 2007), lipopolysaccharides (Sritunyalucksana et al, 1999;Takahashi et al, 2000), and sulfated fucoidans (Chotigeat et al, 2004).…”

Section: Introductionmentioning

confidence: 99%

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Performance and immunological resistance of Litopenaeus vannamei fed a β-1,3/1,6-glucan-supplemented diet after per os challenge with the Infectious myonecrosis virus (IMNV)

Neto

Nunes

2015

R. Bras. Zootec.

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-This study determined the efficacy of a β-1,3/1,6-glucan source on the survival, growth, and immunological responses of Litopenaeus vannamei challenged with infectious myonecrosis virus (IMNV). The work was conducted in 20 tanks of 500 L with clear water with constant recirculation and aeration. Shrimp weighing 2.6±0.4 g were stocked at 100 animals/m 2 and reared for 10 weeks. Viral challenge occurred through oral administration of IMNV positive extract (1.82 £ × 103 copies of IMNV/µL RNA) during three consecutive days, twice a day. One treatment and three controls, with five replicate tanks each, were used, as follows: Com -commercial diet fed to non-challenged shrimp (

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Section: Discussioncontrasting

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Performance and immunological resistance of Litopenaeus vannamei fed a β-1,3/1,6-glucan-supplemented diet after per os challenge with the Infectious myonecrosis virus (IMNV)

Neto

Nunes

2015

R. Bras. Zootec.

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“…Finally, these results have important commercial implications because b-glucans are proposed as immunostimulants in shrimp [42,43] and prawn [44] production. Previous in vitro experiments with zymozan A have shown it to be cytotoxic to haemocytes [17].…”

Section: Discussionmentioning

confidence: 99%

Flow cytometric analysis of crayfish haemocytes activated by lipopolysaccharides

Cárdenas

Dankert

Jenkins

2004

Fish & Shellfish Immunology

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Lipopolysaccharides (LPS) from Gram-negative bacteria are strong stimulators of white river crayfish, Procambarus zonangulus, haemocytes in vitro. Following haemocyte treatment with LPS and with LPS from rough mutant R5 (LPS Rc) from Salmonella minnesota, flow cytometric analysis revealed a conspicuous and reproducible decrease in cell size as compared to control haemocytes. These LPS molecules also caused a reduction in haemocyte viability as assessed by flow cytometry with the fluorescent dyes calcein-AM and ethidium homodimer. The onset of cell size reduction was gradual and occurred prior to cell death. Haemocytes treated with LPS from S. minnesota without the Lipid A moiety (detoxified LPS) decreased in size without a reduction of viability. The action of LPS on crayfish haemocytes appeared to be related to the activation of the prophenoloxidase system because phenoloxidase (PO)-specific activity in the supernatants from control and detoxified LPS-treated cells was significantly lower than that from LPS and LPS-Rc treated cells (P % 0:05). Furthermore, addition of trypsin inhibitor to the LPS treatments caused noticeable delays in cell size and viability changes. These patterns of cellular activation by LPS formulations indicated that crayfish haemocytes react differently to the polysaccharide and lipid A moieties of LPS, where lipid A is cytotoxic and the polysaccharide portion is stimulatory. These effects concur with the general pattern of mammalian cell activation by LPS, thereby indicating common innate immune recognition mechanisms to bacterial antigens between cells from mammals and invertebrates. These definitive molecular approaches used to verify and identify mechanisms of invertebrate haemocyte responses to LPS could be applied with other glycoconjugates, soluble mediators, or xenobiotic compounds.

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Immunostimulation of Crustaceans

et al. 2014

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Immunomodulation by dietary β-1, 3-glucan in the brooders of the black tiger shrimpPenaeus monodon

Cited by 165 publications

References 19 publications

Performance and immunological resistance of Litopenaeus vannamei fed a β-1,3/1,6-glucan-supplemented diet after per os challenge with the Infectious myonecrosis virus (IMNV)

Performance and immunological resistance of Litopenaeus vannamei fed a β-1,3/1,6-glucan-supplemented diet after per os challenge with the Infectious myonecrosis virus (IMNV)

Flow cytometric analysis of crayfish haemocytes activated by lipopolysaccharides

Immunostimulation of Crustaceans

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