Effect of bombyxin-II, an insulin-related peptide of insects, on Bombyx mori hemocyte division in single-cell culture

Saito, Takao; Iwabuchi, Kikuo

doi:10.1303/aez.2003.583

Cited by 16 publications

(11 citation statements)

References 35 publications

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“…Bombyxin has attracted considerable attention from physiologists due to its apparently diverse range of target tissues. It has been described as an ecdysiotropin [23], a regulator of growth [29,30], metamorphosis [14], hematopoiesis [26,35], sugar metabolism [36,37,18] and of ovarian development [5]. The diversity of reported targets of ILPs encourages the expectation that bombyxin and related ILPs may also be important hormonal messengers of time.…”

Section: Introductionmentioning

confidence: 99%

Insulin-like and testis ecdysiotropin neuropeptides are regulated by the circadian timing system in the brain during larval–adult development in the insect Rhodnius prolixus (Hemiptera)

Vafopoulou

Steel

2012

General and Comparative Endocrinology

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Section: Introductionmentioning

confidence: 99%

Insulin-like and testis ecdysiotropin neuropeptides are regulated by the circadian timing system in the brain during larval–adult development in the insect Rhodnius prolixus (Hemiptera)

Vafopoulou

Steel

2012

General and Comparative Endocrinology

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“…For insects on the contrary, reports on the involvement of ILPs in carbohydrate metabolism are rare (Satake et al, 1997;Rulifson et al, 2002;Broughton et al, 2005). Most research has focused on the role of ILPs in controlling cell, organ and total body size and growth (Chen et al, 1996;Brogiolo et al, 2001;Ikeya et al, 2002;Nijhout and Grunert, 2002;Malaterre et al, 2003;Nijhout, 2003;Saito and Iwabuchi, 2003;Stern, 2003;Goto et al, 2005;LaFever and Drummond-Barbosa, 2005). Additionally, ILPs appear to be involved in controlling life-span (Clancy et al, 2001;Tatar et al, 2001).…”

Section: Introductionmentioning

confidence: 99%

Insulin-like peptides in Spodoptera littoralis (Lepidoptera): Detection, localization and identification

Velde

Badisco

Claeys

et al. 2007

General and Comparative Endocrinology

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Insulin is an extensively studied peptide hormone in mammals. However, insulin is not restricted to vertebrates, but has also been identified in invertebrates, among whom several insect species. These insulin-like peptides (ILPs) show structural and-at least some-functional homology with mammalian insulin and act through a conserved pathway. Yet many aspects of insulin function in insects remain to be unveiled. We analyzed the presence of ILPs in the cotton leafworm, Spodoptera littoralis, at two levels: (1) cellular localization of ILPs in whole tissues of the central nervous system from S. littoralis, and (2) detection and identification of ILPs at nucleotide level. To our knowledge, nothing about the presence of ILPs in S. littoralis has been described so far. By whole mount in situ immunolocalization, we localized bombyxin-like material in S. littoralis in four pairs of pars intercerebralis cells and in the corpus cardiacum-corpus allatum complexes. In addition, we have cloned two different S. littoralis ILP precursor cDNAs by a combination of PCR and RAcE. The corresponding precursor polypeptides ('Sl-ILPP1' and 'Sl-ILPP2') show significant sequence homology with precursors for bombyxin and other bombyxin-related peptides. Our results strongly suggest that the S. littoralis ILPs belong to the category of bombyxin-analogs.

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“…Many authors (Gardiner and Strand, 2000;Tu et al, 2002;Saito and Iwabuchi, 2003;Okazaki et al, 2006) reported that the maintenance of hemocyte populations is thought to be regulated by the mitotic division of circulating hemocytes and by production and release of hemocytes in the hematopoietic organs. Mitotic index (MI) is a measure for the proliferation status of a hemocyte population and can be defined as "the ratio between the number of cells, in a population undergoing mitosis, to THC in a population".…”

Section: Mitotic Index As a Parameter Of Haemogram Profile In Insectsmentioning

confidence: 99%

Characterization of Qualitative and Quantitative Haemogram Parameters in Insects: Current Concepts and Future Prospects.

Ghoneim

2019

Egyptian Academic Journal of Biological Sciences. A, Entomology

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physiological functions, as previously mentioned. 2.1. Variation in Number and Types of Circulating Hemocytes: It is interesting to give some historical information about the hemocyte classification and characterization. Hollande (1911) firstly attempted to classify and categorize the insect hemocytes after the earlier research works, particularly those of Cuenot (1897) and Kollmann (1908). Then, Wigglesworth (1939) followed each of Hollande's categories. Yeager (1945) identified ten hemocyte classes containing 32 different types in the Southern armyworm Prodenia eridania. Some years later, Jones (1962) reduced this number to nine distinct cell types, and his generalizing work earned a special place in the history of hemocytes, since his classification was the basis used by most researchers thereafter. The same author described eight hemocyte types in insects: PRs, PLs, GRs, Cystocytes (CCs), OEs, ADs, Podocytes (POs), and Vermiform cells (VRs). With this classification, this author established a system to give an order to more than 70 names for hemocyte types used by earlier investigators. Later, Price and Ratcliffe (1974) examined the hemocytes of 15 representative insect orders and distinguished six different types distributed in those orders: PRs, PLs, GRs, spherulocytes (SPs), CCs and OEs; however, CCs were absent in Lepidoptera. Using phase contrast microscopy, Sharma and Dutta (1979) recorded the presence of ten categories of hemocytes: PRs, PLs, GRs, CCs, COs, SPs, ADs, OEs, POs and VRs in the grasshoppers Chrotogonus trachypterus and Acrida exaltata. Although, Gupta (1979) recognized seven main types of haemocytes in various insect orders, namely PRs, PLs, GRs, SPs, ADs, OEs and Coagulocytes (CGs), while Gupta (1994) merged the category CGs with that of GRs. Although Brehelin and Zachary (1986) proposed a new system with nine hemocyte types, the classified categories of haemocytes ranged, generally, from four to seven (Gupta, 1979) or between three and nine (Wigglesworth, 1959; Arnold, 1972, 1974). However, some authors described three to eight hemocyte types in several insect orders by means of the transmission electron microscopy (TEM)(Ratcliffe and Rowley, 1979; Al-Khalifa and Siddiqui, 1985). As reported in the available literature, the main types of hemocytes are PRs, GRs, PLs, SPs and OEs. These hemocyte types have been described in insect species of diverse orders,

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Effect of bombyxin-II, an insulin-related peptide of insects, on Bombyx mori hemocyte division in single-cell culture

Cited by 16 publications

References 35 publications

Insulin-like and testis ecdysiotropin neuropeptides are regulated by the circadian timing system in the brain during larval–adult development in the insect Rhodnius prolixus (Hemiptera)

Insulin-like and testis ecdysiotropin neuropeptides are regulated by the circadian timing system in the brain during larval–adult development in the insect Rhodnius prolixus (Hemiptera)

Insulin-like peptides in Spodoptera littoralis (Lepidoptera): Detection, localization and identification

Characterization of Qualitative and Quantitative Haemogram Parameters in Insects: Current Concepts and Future Prospects.

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