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Homberg U, Hensgen R, Rieber E, Seyfarth J, Kern M, Dippel S, Dircksen H, Spänig L, Kina YP. Orcokinin in the central complex of the locust Schistocerca gregaria: Identification of immunostained neurons and colocalization with other neuroactive substances. J Comp Neurol 2020; 529:1876-1894. [PMID: 33128250 DOI: 10.1002/cne.25062] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [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: 08/13/2020] [Revised: 10/22/2020] [Accepted: 10/22/2020] [Indexed: 12/20/2022]
Abstract
The central complex is a group of highly interconnected neuropils in the insect brain. It is involved in the control of spatial orientation, based on external compass cues and various internal needs. The functional and neurochemical organization of the central complex has been studied in detail in the desert locust Schistocerca gregaria. In addition to classical neurotransmitters, immunocytochemistry has provided evidence for a major contribution of neuropeptides to neural signaling within the central complex. To complement these data, we have identified all orcokinin-immunoreactive neurons in the locust central complex and associated brain areas. About 50 bilateral pairs of neurons innervating all substructures of the central complex exhibit orcokinin immunoreactivity. Among these were about 20 columnar neurons, 33 bilateral pairs of tangential neurons of the central body, and seven pairs of tangential neurons of the protocerebral bridge. In silico transcript analysis suggests the presence of eight different orcokinin-A type peptides in the desert locust. Double label experiments showed that all orcokinin-immunostained tangential neurons of the lateral accessory lobe cluster were also immunoreactive for GABA and the GABA-synthesizing enzyme glutamic acid decarboxylase. Two types of tangential neurons of the upper division of the central body were, furthermore, also labeled with an antiserum against Dip-allatostatin I. No colocalization was found with serotonin immunostaining. The data provide additional insights into the neurochemical organization of the locust central complex and suggest that orcokinin-peptides of the orcokinin-A gene act as neuroactive substances at all stages of signal processing in this brain area.
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Affiliation(s)
- Uwe Homberg
- Department of Biology, Animal Physiology & Center for Mind, Brain and Behavior (CMBB), University of Marburg and Justus Liebig University Giessen, Marburg, Germany
| | - Ronja Hensgen
- Department of Biology, Animal Physiology & Center for Mind, Brain and Behavior (CMBB), University of Marburg and Justus Liebig University Giessen, Marburg, Germany
| | - Evelyn Rieber
- Department of Biology, Animal Physiology & Center for Mind, Brain and Behavior (CMBB), University of Marburg and Justus Liebig University Giessen, Marburg, Germany.,Behavioral Physiology and Sociobiology, Biocenter, University of Würzburg, Würzburg, Germany
| | - Jutta Seyfarth
- Department of Biology, Animal Physiology & Center for Mind, Brain and Behavior (CMBB), University of Marburg and Justus Liebig University Giessen, Marburg, Germany
| | - Martina Kern
- Department of Biology, Animal Physiology & Center for Mind, Brain and Behavior (CMBB), University of Marburg and Justus Liebig University Giessen, Marburg, Germany
| | - Stefan Dippel
- Department of Biology, Animal Physiology & Center for Mind, Brain and Behavior (CMBB), University of Marburg and Justus Liebig University Giessen, Marburg, Germany
| | | | - Lisa Spänig
- Department of Biology, Animal Physiology & Center for Mind, Brain and Behavior (CMBB), University of Marburg and Justus Liebig University Giessen, Marburg, Germany
| | - Yelda Pakize Kina
- Department of Biology, Animal Physiology & Center for Mind, Brain and Behavior (CMBB), University of Marburg and Justus Liebig University Giessen, Marburg, Germany
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Stoilova VV, Knauer B, Berg S, Rieber E, Jäkel F, Stüttgen MC. Auditory cortex reflects goal-directed movement but is not necessary for behavioral adaptation in sound-cued reward tracking. J Neurophysiol 2020; 124:1056-1071. [PMID: 32845769 DOI: 10.1152/jn.00736.2019] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Mounting evidence suggests that the role of sensory cortices in perceptual decision making goes beyond the mere representation of the discriminative stimuli and additionally involves the representation of nonsensory variables such as reward expectation. However, the relevance of these representations for behavior is not clear. To address this issue, we trained rats to discriminate sounds in a single-interval forced-choice task and then confronted the animals with unsignaled blockwise changes of reward probabilities. We found that unequal reward probabilities for the two choice options led to substantial shifts in response bias without concomitant reduction in stimulus discrimination. Although decisional biases were on average less extreme than required to maximize overall reinforcement, a model-based analysis revealed that rats managed to harvest >97% of rewards. Neurons in auditory cortex recorded during task performance weakly differentiated the discriminative stimuli but more strongly the subsequent goal-directed movement. Although 10-20% of units exhibited significantly different firing rates between task epochs with different response biases, control experiments showed this to result from inflated false positive rates due to unspecific temporal correlations of spiking activity rather than changing reinforcement contingencies. Transient pharmacological inactivation of auditory cortex reduced sound discriminability without affecting other measures of performance, whereas inactivation of medial prefrontal cortex affected both discriminability and bias. Together, these results suggest that auditory cortex activity only weakly reflects decisional variables during flexible updating of stimulus-response-outcome contingencies and does not play a crucial role in sound-cued adaptive behavior, beyond the representation of the discriminative stimuli.NEW & NOTEWORTHY Recent evidence suggests that sensory cortex represents nonsensory variables such as reward expectation, but the relevance of these representations for behavior is not well understood. We show that rat auditory cortex (AC) is modulated during movement and reward anticipation in a sound-cued reward tracking task, whereas AC inactivation only impaired discrimination without affecting reward tracking, consistent with a predominantly sensory role of AC.
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Affiliation(s)
- Vanya V Stoilova
- Institute of Pathophysiology, University Medical Center of the Johannes Gutenberg University Mainz, Mainz, Germany
| | - Beate Knauer
- Institute of Pathophysiology, University Medical Center of the Johannes Gutenberg University Mainz, Mainz, Germany
| | - Stephanie Berg
- Institute of Pathophysiology, University Medical Center of the Johannes Gutenberg University Mainz, Mainz, Germany
| | - Evelyn Rieber
- Institute of Pathophysiology, University Medical Center of the Johannes Gutenberg University Mainz, Mainz, Germany
| | - Frank Jäkel
- Centre for Cognitive Science, Institute of Psychology, Technische Universität Darmstadt, Darmstadt, Germany
| | - Maik C Stüttgen
- Institute of Pathophysiology, University Medical Center of the Johannes Gutenberg University Mainz, Mainz, Germany.,Focus Program Translational Neurosciences, University Medical Center of the Johannes Gutenberg University Mainz, Mainz, Germany
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Braun A, Bewersdorff M, Gutermuth J, Schober W, Mempel M, Behrendt H, Buters J, Jakob T, Traidl-Hoffmann C, Ring J, Müller M, Gilles S, Jacoby D, Schäkel K, Hochrein H, Ebling A, Rieber E, Meurer M, Dijkstra D, Werfel T, Gutzmer R, Bellinghausen I, Häringer B, Lafargue B, König B, Decker H, Knop J, Saloga J, Gehlhar K, Haußmann U, Peters M, Werner S, Bufe A, Stock P, Wunsch D, Lurz L, Röse L, Hamelmann E. Dendritische Zellen und T-Zellen. Allergo J 2007. [DOI: 10.1007/bf03370554] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Weigle B, Ebner R, Temme A, Schwind S, Schmitz M, Kiessling A, Rieger M, Schackert G, Schackert H, Rieber E. Highly specific overexpression of the transcription factor SOX11 in human malignant gliomas. Oncol Rep 2005. [DOI: 10.3892/or.13.1.139] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
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Schäkel K, Kannagi R, Kniep B, Goto Y, Mitsuoka C, Zwirner J, Soruri A, von Kietzell M, Rieber E. 6-Sulfo LacNAc, a novel carbohydrate modification of PSGL-1, defines an inflammatory type of human dendritic cells. Immunity 2002; 17:289-301. [PMID: 12354382 DOI: 10.1016/s1074-7613(02)00393-x] [Citation(s) in RCA: 186] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
The monoclonal antibody M-DC8 defines a major subset of human blood dendritic cells (DCs). Here we identify the M-DC8 structure as 6-sulfo LacNAc, a novel carbohydrate modification of the P selectin glycoprotein ligand 1 (PSGL-1). In contrast to previously described blood DCs, M-DC8+ DCs lack the cutaneous lymphocyte antigen (CLA) on PSGL-1 and fail to bind P and E selectin. Yet they express anaphylatoxin receptors (C5aR and C3aR) and the Fcgamma receptor III (CD16), which recruit cells to inflammatory sites. While sharing with DC1 the expression of myeloid markers and a potent capacity to prime T cells in vitro, M-DC8+ DCs produce far more TNF-alpha in response to the bacterial endotoxin lipopolysaccharide (LPS). Thus, 6-sulfo LacNAc-expressing DCs appear as a novel proinflammatory DC subset.
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Affiliation(s)
- Knut Schäkel
- Institute of Immunology, Technical University of Dresden, Dresden, Germany
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Meiser BM, Reiter C, Ebel M, Uberfuhr P, Wenke K, Reichenspurner H, Rieber E, Riethmüller G, Reichart B. A new chimeric monoclonal CD4 antibody for prevention of rejection after heart transplantation. Transplant Proc 1992; 24:1734. [PMID: 1412816] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- B M Meiser
- Department of Cardiac Surgery, Ludwig-Maximilians University of Munich, Germany
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Walther JU, Bender-Götze C, Haas R, Rieber E. [Delayed development of chimerism following T-cell depleted bone marrow transplantation]. Klin Padiatr 1987; 199:165-8. [PMID: 3306130 DOI: 10.1055/s-2008-1026783] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Comparison of cytogenetic chimaerism was performed in two children after bone marrow transplantation (bmt) with resp. without T-cell depletion for ANLL. It showed a marked delay of full bone marrow function in the patient with a T-depleted graft. Host type bone marrow cells persisted over many months, whereas they disappeared quickly when undepleted marrow was transplanted. Donor-T-cells apparently interact with remaining host cells and thus they might more efficiently eliminate leukaemia. Therefore total removal of T-cells from the graft seems risky in bmt for leukaemia.
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Arlin ZA, Ahmed T, Mittelman A, Feldman E, Mehta R, Weinstein P, Rieber E, Sullivan P, Baskind P. A new regimen of amsacrine with high-dose cytarabine is safe and effective therapy for acute leukemia. J Clin Oncol 1987; 5:371-5. [PMID: 3546613 DOI: 10.1200/jco.1987.5.3.371] [Citation(s) in RCA: 33] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
Amsacrine and high-dose cytarabine (HiDAc), when administered as single agents, are effective treatment of acute leukemia. When used in combination, a high remission rate is also possible. We treated 47 patients with acute myelogenous leukemia (AML), acute lymphoblastic leukemia (ALL), and blastic phase of chronic myelogenous leukemia (CML) with a combination of amsacrine and HiDAc. The patients received amsacrine 200 mg/m2 daily for three days and, concurrently, HiDAc 3 g/m2 over three hours once daily for five days. Of 20 evaluable patients with AML in relapse, there were 12 remissions; of seven additional patients with primary refractory AML, there were two remissions, and of 12 patients with ALL in relapse, there were eight remissions. The three patients with blastic phase CML and the three patients with biphenotypic leukemia did not respond. Nausea, vomiting, stomatitis, hepatic dysfunction, and diarrhea were common, but cutaneous, conjunctival, and significant cerebellar and cerebral side effects were absent. We conclude that this regimen is highly effective therapy for AML and ALL and is also safe, eliminating the major toxicities encountered with HiDAc.
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Maayan S, Backenroth R, Rieber E, Jainchill N, Yaeger A, De Leon G, Getchell JP, Miller SN, Pollack CC, Wormser GP. Antibody to lymphadenopathy-associated virus/human T lymphotropic virus type III in various groups of illicit drug abusers in New York City. J Infect Dis 1985; 152:843. [PMID: 2995507 DOI: 10.1093/infdis/152.4.843] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
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Mittelman A, Rieber E, Friedland ML, Arlin ZA. Induction of remission in acute promyelocytic leukemia with mitoxantrone. Cancer Chemother Pharmacol 1985; 14:81-2. [PMID: 3855290 DOI: 10.1007/bf00552732] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Two patients with acute promyelocytic leukemia in first relapse received mitoxantrone 12 mg/m2/day for 5 days. Both patients received IV heparin with replacement of platelets and coagulation factors for control of disseminated intravascular coagulopathy. Both have achieved a complete remission after one course of treatment. We conclude that mitoxantrone is active in patients with acute promyelocytic leukemia and that these patients should also be included in the planned prospective randomized trials comparing daunorubicin and mitoxantrone in combination with cytarabine in previously untreated patients with acute nonlymphoblastic leukemia.
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Rieber E, Mittelman A, Wormser GP, Maayan S, Gaddipati J, Ahmed T, Madden K, Chiao JW, Arlin ZA. Vincristine and Kaposi's sarcoma in the acquired immunodeficiency syndrome. Ann Intern Med 1984; 101:876. [PMID: 6497201 DOI: 10.7326/0003-4819-101-6-876_1] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
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