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Hardison EA, Eliason EJ. Diet effects on ectotherm thermal performance. Biol Rev Camb Philos Soc 2024. [PMID: 38616524 DOI: 10.1111/brv.13081] [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: 08/11/2023] [Revised: 03/20/2024] [Accepted: 03/26/2024] [Indexed: 04/16/2024]
Abstract
The environment is changing rapidly, and considerable research is aimed at understanding the capacity of organisms to respond. Changes in environmental temperature are particularly concerning as most animals are ectothermic, with temperature considered a key factor governing their ecology, biogeography, behaviour and physiology. The ability of ectotherms to persist in an increasingly warm, variable, and unpredictable future will depend on their nutritional status. Nutritional resources (e.g. food availability, quality, options) vary across space and time and in response to environmental change, but animals also have the capacity to alter how much they eat and what they eat, which may help them improve their performance under climate change. In this review, we discuss the state of knowledge in the intersection between animal nutrition and temperature. We take a mechanistic approach to describe nutrients (i.e. broad macronutrients, specific lipids, and micronutrients) that may impact thermal performance and discuss what is currently known about their role in ectotherm thermal plasticity, thermoregulatory behaviour, diet preference, and thermal tolerance. We finish by describing how this topic can inform ectotherm biogeography, behaviour, and aquaculture research.
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Affiliation(s)
- Emily A Hardison
- Department of Ecology, Evolution and Marine Biology, University of California Santa Barbara, Santa Barbara, California, 93106, USA
| | - Erika J Eliason
- Department of Ecology, Evolution and Marine Biology, University of California Santa Barbara, Santa Barbara, California, 93106, USA
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Schwieterman GD, Hardison EA, Cox GK, Van Wert JC, Birnie-Gauvin K, Eliason EJ. Mechanisms of cardiac collapse at high temperature in a marine teleost (Girella nigrians). Comp Biochem Physiol A Mol Integr Physiol 2023; 286:111512. [PMID: 37726058 DOI: 10.1016/j.cbpa.2023.111512] [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: 08/01/2023] [Revised: 09/11/2023] [Accepted: 09/11/2023] [Indexed: 09/21/2023]
Abstract
Heat-induced mortality in ectotherms may be attributed to impaired cardiac performance, specifically a collapse in maximum heart rate (fHmax), although the physiological mechanisms driving this phenomenon are still unknown. Here, we tested two proposed factors which may restrict cardiac upper thermal limits: noxious venous blood conditions and oxygen limitation. We hypothesized elevated blood [K+] (hyperkalemia) and low oxygen (hypoxia) would reduce cardiac upper thermal limits in a marine teleost (Girella nigricans), while high oxygen (hyperoxia) would increase thermal limits. We also hypothesized higher acclimation temperatures would exacerbate the harmful effects of an oxygen limitation. Using the Arrhenius breakpoint temperature test, we measured fHmax in acutely warmed fish under control (saline injected) and hyperkalemic conditions (elevated plasma [K+]) while exposed to hyperoxia (200% air saturation), normoxia (100% air saturation), or hypoxia (20% air saturation). We also measured ventricle lactate content and venous blood oxygen partial pressure (PO2) to determine if there were universal thresholds in either metric driving cardiac collapse. Elevated [K+] was not significantly correlated with any cardiac thermal tolerance metric. Hypoxia significantly reduced cardiac upper thermal limits (Arrhenius breakpoint temperature [TAB], peak fHmax, temperature of peak heart rate [TPeak], and temperature at arrhythmia [TARR]). Hyperoxia did not alter cardiac thermal limits compared to normoxia. There was no evidence of a species-wide threshold in ventricular [lactate] or venous PO2. Here, we demonstrate that oxygen limits cardiac thermal tolerance only in instances of hypoxia, but that other physiological processes are responsible for causing temperature-induced heart failure when oxygen is not limited.
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Affiliation(s)
- Gail D Schwieterman
- Department of Ecology Evolution and Marine Biology, University of California Santa Barbara, Santa Barbara, CA, USA; School of Marine Sciences, University of Maine, Orono, ME, USA; Maine Agricultural and Forest Experiment Station, Orono, ME, USA.
| | - Emily A Hardison
- Department of Ecology Evolution and Marine Biology, University of California Santa Barbara, Santa Barbara, CA, USA. https://twitter.com/eahardison
| | | | - Jacey C Van Wert
- Department of Ecology Evolution and Marine Biology, University of California Santa Barbara, Santa Barbara, CA, USA. https://twitter.com/jacey_van_wert
| | - Kim Birnie-Gauvin
- Department of Ecology Evolution and Marine Biology, University of California Santa Barbara, Santa Barbara, CA, USA; Section for Freshwater Fisheries and Ecology, National Institute of Aquatic Resources, Technical University of Denmark, Silkeborg, Denmark. https://twitter.com/kbg_conserv
| | - Erika J Eliason
- Department of Ecology Evolution and Marine Biology, University of California Santa Barbara, Santa Barbara, CA, USA
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Kraskura K, Hardison EA, Eliason EJ. Body size and temperature affect metabolic and cardiac thermal tolerance in fish. Sci Rep 2023; 13:17900. [PMID: 37857749 PMCID: PMC10587238 DOI: 10.1038/s41598-023-44574-w] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Accepted: 10/10/2023] [Indexed: 10/21/2023] Open
Abstract
Environmental warming is associated with reductions in ectotherm body sizes, suggesting that larger individuals may be more vulnerable to climate change. The mechanisms driving size-specific vulnerability to temperature are unknown but are required to finetune predictions of fisheries productivity and size-structure community responses to climate change. We explored the potential metabolic and cardiac mechanisms underlying these body size vulnerability trends in a eurythermal fish, barred surfperch. We acutely exposed surfperch across a large size range (5-700 g) to four ecologically relevant temperatures (16 °C, 12 °C, 20 °C, and 22 °C) and subsequently, measured their metabolic capacity (absolute and factorial aerobic scopes, maximum and resting metabolic rates; AAS, FAS, MMR, RMR). Additionally, we estimated the fish's cardiac thermal tolerance by measuring their maximum heart rates (fHmax) across acutely increasing temperatures. Barred surfperch had parallel hypoallometric scaling of MMR and RMR (exponent 0.81) and a weaker hypoallometric scaling of fHmax (exponent - 0.05) across all test temperatures. In contrast to our predictions, the fish's aerobic capacity was maintained across sizes and acute temperatures, and larger fish had greater cardiac thermal tolerance than smaller fish. These results demonstrate that thermal performance may be limited by different physiological constraints depending on the size of the animal and species of interest.
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Affiliation(s)
- Krista Kraskura
- Department of Ecology, Evolution and Marine Biology, University of California, Santa Barbara, CA, 93106, USA.
| | - Emily A Hardison
- Department of Ecology, Evolution and Marine Biology, University of California, Santa Barbara, CA, 93106, USA
| | - Erika J Eliason
- Department of Ecology, Evolution and Marine Biology, University of California, Santa Barbara, CA, 93106, USA
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Hardison EA. Climate change leaves urchins on a rock in a hard place to live. J Exp Biol 2023. [DOI: 10.1242/jeb.245000] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/07/2023]
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Hardison EA, Schwieterman GD, Eliason EJ. Diet changes thermal acclimation capacity, but not acclimation rate, in a marine ectotherm ( Girella nigricans) during warming. Proc Biol Sci 2023; 290:20222505. [PMID: 36987639 PMCID: PMC10050929 DOI: 10.1098/rspb.2022.2505] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Accepted: 03/06/2023] [Indexed: 03/30/2023] Open
Abstract
Global climate change is increasing thermal variability in coastal marine environments and the frequency, intensity and duration of marine heatwaves. At the same time, food availability and quality are being altered by anthropogenic environmental changes. Marine ectotherms often cope with changes in temperature through physiological acclimation, which can take several weeks and is a nutritionally demanding process. Here, we tested the hypothesis that different ecologically relevant diets (omnivorous, herbivorous, carnivorous) impact thermal acclimation rate and capacity, using a temperate omnivorous fish as a model (opaleye, Girella nigricans). We measured acute thermal performance curves for maximum heart rate because cardiac function has been observed to set upper thermal limits in ectotherms. Opaleye acclimated rapidly after raising water temperatures, but their thermal limits and acclimation rate were not affected by their diet. However, the fish's acclimation capacity for maximum heart rate was sensitive to diet, with fish in the herbivorous treatment displaying the smallest change in heart rate throughout acclimation. Mechanistically, ventricle fatty acid composition differed with diet treatment and was related to cardiac performance in ways consistent with homoviscous adaptation. Our results suggest that diet is an important, but often overlooked, determinant of thermal performance in ectotherms on environmentally relevant time scales.
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Affiliation(s)
| | - Gail D. Schwieterman
- University of California, Santa Barbara, CA 93106, USA
- School of Marine Sciences, University of Maine, Orono, ME 04469, USA
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Schwieterman GD, Hardison EA, Eliason EJ. Effect of thermal variation on the cardiac thermal limits of a eurythermal marine teleost (Girella nigricans). Curr Res Physiol 2022; 5:109-117. [PMID: 35243360 PMCID: PMC8857604 DOI: 10.1016/j.crphys.2022.02.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Revised: 01/05/2022] [Accepted: 02/04/2022] [Indexed: 11/24/2022] Open
Abstract
Although most animals live in complex, thermally variable environments, the impact of this variability on specific physiological systems is still unresolved. The ectotherm heart is known to change in both structure and function to ensure appropriate oxygen delivery under different thermal regimes, but the plasticity of the upper thermal limits of the heart under stable or variable thermal acclimation conditions remains unknown. To investigate the role of thermal variability on cardiac acclimation potential, we acclimated a eurythermal fish, opaleye (Girella nigricans), to three static temperature treatments (13, 16, and 19 °C) as well as two oscillating treatments which cycled between maximum and minimum temperatures every 12 h (13–19 °C and 16–22 °C). These temperatures and daily thermal ranges were chosen to mimic the conditions observed in the rocky intertidal environments in Santa Barbara, CA, USA where the fish were collected. We hypothesized that increasing temperature would increase upper thermal limits of the heart, and that variable acclimations would result in broader acute thermal performance curves (TPCs) compared to static acclimations. We measured maximum heart rate during acute warming to determine cardiac thermal performance (i.e., the temperature corresponding to the onset of cardiac arrythmia, the temperature at maximum heart rate, absolute maximum heart rate, and the Arrhenius breakpoint temperature) and construct acute TPCs. Rising static acclimation temperatures increased upper thermal limits but had no impact on peak maximum heart rate. The warmest static temperature did, however, cause a narrowing of the acute TPC. Fish acclimated to variable conditions had the same upper thermal limits compared to fish acclimated to static conditions with the same mean temperature in all metrics of thermal performance. Further, there was no significant broadening of the acute TPC. This study suggests that cardiac plasticity is robust to thermal variation in this eurythermal fish. Rising static acclimation temperatures increased cardiac upper thermal limits. Warm acclimation caused the acute thermal performance curve to narrow. Acclimation to static and variable thermocycles did not impact upper thermal limits. Variable acclimation conditions did not broaden the acute thermal performance curve. Cardiac plasticity is robust to thermal variation in some eurythermal fishes.
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Kraskura K, Hardison EA, Little AG, Dressler T, Prystay TS, Hendriks B, Farrell AP, Cooke SJ, Patterson DA, Hinch SG, Eliason EJ. Corrigendum to: Sex-specific differences in swimming, aerobic metabolism and recovery from exercise in adult coho salmon ( Oncorhynchus kisutch) across ecologically relevant temperatures. Conserv Physiol 2022; 10:coab100. [PMID: 35035977 PMCID: PMC8754485 DOI: 10.1093/conphys/coab100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2018] [Revised: 05/23/2018] [Accepted: 07/05/2018] [Indexed: 06/14/2023]
Abstract
[This corrects the article DOI: 10.1093/conphys/coab016.].
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | - E J Eliason
- Corresponding author: School of Forest Resources and Environmental Science,
Michigan Technological University, 1400 Townsend Drive, Houghton, MI 49931, USA. Tel: +1
847 322 2724.
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Hardison EA, Kraskura K, Van Wert J, Nguyen T, Eliason EJ. Diet mediates thermal performance traits: implications for marine ectotherms. J Exp Biol 2021; 224:272691. [PMID: 34647599 DOI: 10.1242/jeb.242846] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [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: 05/10/2021] [Accepted: 10/01/2021] [Indexed: 11/20/2022]
Abstract
Thermal acclimation is a key process enabling ectotherms to cope with temperature change. To undergo a successful acclimation response, ectotherms require energy and nutritional building blocks obtained from their diet. However, diet is often overlooked as a factor that can alter acclimation responses. Using a temperate omnivorous fish, opaleye (Girella nigricans), as a model system, we tested the hypotheses that (1) diet can impact the magnitude of thermal acclimation responses and (2) traits vary in their sensitivity to both temperature acclimation and diet. We fed opaleye a simple omnivorous diet (ad libitum Artemia sp. and Ulva sp.) or a carnivorous diet (ad libitum Artemia sp.) at two ecologically relevant temperatures (12 and 20°C) and measured a suite of whole-animal (growth, sprint speed, metabolism), organ (cardiac thermal tolerance) and cellular-level traits (oxidative stress, glycolytic capacity). When opaleye were offered two diet options compared with one, they had reduced cardiovascular thermal performance and higher standard metabolic rate under conditions representative of the maximal seasonal temperature the population experiences (20°C). Further, sprint speed and absolute aerobic scope were insensitive to diet and temperature, while growth was highly sensitive to temperature but not diet, and standard metabolic rate and maximum heart rate were sensitive to both diet and temperature. Our results reveal that diet influences thermal performance in trait-specific ways, which could create diet trade-offs for generalist ectotherms living in thermally variable environments. Ectotherms that alter their diet may be able to regulate their performance at different environmental temperatures.
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Affiliation(s)
- Emily A Hardison
- Department of Ecology, Evolution and Marine Biology, University of California, Santa Barbara, Santa Barbara, CA 93106, USA
| | - Krista Kraskura
- Department of Ecology, Evolution and Marine Biology, University of California, Santa Barbara, Santa Barbara, CA 93106, USA
| | - Jacey Van Wert
- Department of Ecology, Evolution and Marine Biology, University of California, Santa Barbara, Santa Barbara, CA 93106, USA
| | - Tina Nguyen
- Department of Ecology, Evolution and Marine Biology, University of California, Santa Barbara, Santa Barbara, CA 93106, USA
| | - Erika J Eliason
- Department of Ecology, Evolution and Marine Biology, University of California, Santa Barbara, Santa Barbara, CA 93106, USA
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Kraskura K, Hardison EA, Little AG, Dressler T, Prystay TS, Hendriks B, Farrell AP, Cooke SJ, Patterson DA, Hinch SG, Eliason EJ. Sex-specific differences in swimming, aerobic metabolism and recovery from exercise in adult coho salmon ( Oncorhynchus kisutch) across ecologically relevant temperatures. Conserv Physiol 2021; 9:coab016. [PMID: 34840800 PMCID: PMC8611523 DOI: 10.1093/conphys/coab016] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 02/23/2021] [Accepted: 04/09/2021] [Indexed: 06/13/2023]
Abstract
Adult female Pacific salmon can have higher migration mortality rates than males, particularly at warm temperatures. However, the mechanisms underlying this phenomenon remain a mystery. Given the importance of swimming energetics on fitness, we measured critical swim speed, swimming metabolism, cost of transport, aerobic scope (absolute and factorial) and exercise recovery in adult female and male coho salmon (Oncorhynchus kisutch) held for 2 days at 3 environmentally relevant temperatures (9°C, 14°C, 18°C) in fresh water. Critical swimming performance (U crit) was equivalent between sexes and maximal at 14°C. Absolute aerobic scope was sex- and temperature-independent, whereas factorial aerobic scope decreased with increasing temperature in both sexes. The full cost of recovery from exhaustive exercise (excess post-exercise oxygen consumption) was higher in males compared to females. Immediately following exhaustive exercise (i.e. 1 h), recovery was impaired at 18°C for both sexes. At an intermediate time scale (i.e. 5 h), recovery in males was compromised at 14°C and 18°C compared to females. Overall, swimming, aerobic metabolism, and recovery energetics do not appear to explain the phenomenon of increased mortality rates in female coho salmon. However, our results suggest that warming temperatures compromise recovery following exhaustive exercise in both male and female salmon, which may delay migration progression and could contribute to en route mortality.
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Affiliation(s)
- K Kraskura
- Department of Ecology, Evolution and Marine Biology, University of
California, Santa Barbara, California 93106, USA
| | - E A Hardison
- Department of Ecology, Evolution and Marine Biology, University of
California, Santa Barbara, California 93106, USA
| | - A G Little
- Department of Biology Biosciences Complex, Queens
University, Kingston, Ontario K7L 3N6, Canada
| | - T Dressler
- Department of Ecology, Evolution and Marine Biology, University of
California, Santa Barbara, California 93106, USA
| | - T S Prystay
- Department of Biology and Institute of Environmental and Interdisciplinary
Science, Carleton University, Ottawa, Ontario K1S 5B6, Canada
| | - B Hendriks
- Pacific Salmon Ecology and Conservation Laboratory, Department of Forest and
Conservation Sciences, University of British Columbia, Vancouver,
British Columbia V6T 1Z4, Canada
| | - A P Farrell
- Department of Zoology, University of British
Columbia, Vancouver, British Columbia V6T 1Z4, Canada
- Faculty of Land and Food Systems, University of British
Columbia, Vancouver, British Columbia V6T 1Z4, Canada
| | - S J Cooke
- Department of Biology and Institute of Environmental and Interdisciplinary
Science, Carleton University, Ottawa, Ontario K1S 5B6, Canada
| | - D A Patterson
- Fisheries and Oceans Canada, Science Branch, Pacific Region, School of Resource
and Environmental Management, Simon Fraser University, Burnaby,
British Columbia V5A 1S6, Canada
| | - S G Hinch
- Pacific Salmon Ecology and Conservation Laboratory, Department of Forest and
Conservation Sciences, University of British Columbia, Vancouver,
British Columbia V6T 1Z4, Canada
| | - E J Eliason
- Department of Ecology, Evolution and Marine Biology, University of
California, Santa Barbara, California 93106, USA
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Binnewies M, Mujal AM, Pollack JL, Combes AJ, Hardison EA, Barry KC, Tsui J, Ruhland MK, Kersten K, Abushawish MA, Spasic M, Giurintano JP, Chan V, Daud AI, Ha P, Ye CJ, Roberts EW, Krummel MF. Unleashing Type-2 Dendritic Cells to Drive Protective Antitumor CD4 + T Cell Immunity. Cell 2019; 177:556-571.e16. [PMID: 30955881 DOI: 10.1016/j.cell.2019.02.005] [Citation(s) in RCA: 359] [Impact Index Per Article: 71.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2018] [Revised: 12/08/2018] [Accepted: 02/06/2019] [Indexed: 01/09/2023]
Abstract
Differentiation of proinflammatory CD4+ conventional T cells (Tconv) is critical for productive antitumor responses yet their elicitation remains poorly understood. We comprehensively characterized myeloid cells in tumor draining lymph nodes (tdLN) of mice and identified two subsets of conventional type-2 dendritic cells (cDC2) that traffic from tumor to tdLN and present tumor-derived antigens to CD4+ Tconv, but then fail to support antitumor CD4+ Tconv differentiation. Regulatory T cell (Treg) depletion enhanced their capacity to elicit strong CD4+ Tconv responses and ensuing antitumor protection. Analogous cDC2 populations were identified in patients, and as in mice, their abundance relative to Treg predicts protective ICOS+ PD-1lo CD4+ Tconv phenotypes and survival. Further, in melanoma patients with low Treg abundance, intratumoral cDC2 density alone correlates with abundant CD4+ Tconv and with responsiveness to anti-PD-1 therapy. Together, this highlights a pathway that restrains cDC2 and whose reversal enhances CD4+ Tconv abundance and controls tumor growth.
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MESH Headings
- Animals
- Antigens, Neoplasm/immunology
- CD4-Positive T-Lymphocytes/cytology
- CD4-Positive T-Lymphocytes/immunology
- CD4-Positive T-Lymphocytes/metabolism
- Cell Differentiation
- Cell Line, Tumor
- Cytokines/metabolism
- Dendritic Cells/cytology
- Dendritic Cells/immunology
- Dendritic Cells/metabolism
- Diphtheria Toxin/immunology
- Forkhead Transcription Factors/metabolism
- Humans
- Lectins, C-Type/genetics
- Lectins, C-Type/metabolism
- Lymph Nodes/immunology
- Lymph Nodes/metabolism
- Lymphocyte Activation
- Melanoma, Experimental/immunology
- Melanoma, Experimental/pathology
- Mice
- Mice, Inbred C57BL
- Mice, Knockout
- Receptors, Chemokine/metabolism
- T-Lymphocytes, Regulatory/immunology
- Tumor Microenvironment
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Affiliation(s)
- Mikhail Binnewies
- Department of Pathology, University of California, San Francisco, San Francisco, CA 94143, USA
| | - Adriana M Mujal
- Department of Pathology, University of California, San Francisco, San Francisco, CA 94143, USA
| | | | - Alexis J Combes
- Department of Pathology, University of California, San Francisco, San Francisco, CA 94143, USA; UCSF Immunoprofiler Initiative, University of California, San Francisco, San Francisco, CA 94143, USA
| | - Emily A Hardison
- Department of Pathology, University of California, San Francisco, San Francisco, CA 94143, USA
| | - Kevin C Barry
- Department of Pathology, University of California, San Francisco, San Francisco, CA 94143, USA; UCSF Immunoprofiler Initiative, University of California, San Francisco, San Francisco, CA 94143, USA
| | - Jessica Tsui
- Department of Pathology, University of California, San Francisco, San Francisco, CA 94143, USA; UCSF Immunoprofiler Initiative, University of California, San Francisco, San Francisco, CA 94143, USA
| | - Megan K Ruhland
- Department of Pathology, University of California, San Francisco, San Francisco, CA 94143, USA
| | - Kelly Kersten
- Department of Pathology, University of California, San Francisco, San Francisco, CA 94143, USA
| | | | - Marko Spasic
- Department of Medicine, University of California, San Francisco, San Francisco, CA 94143, USA
| | - Jonathan P Giurintano
- Department of Otolaryngology-Head and Neck Surgery, University of California, San Francisco, San Francisco, CA 94143, USA
| | - Vincent Chan
- Department of Pathology, University of California, San Francisco, San Francisco, CA 94143, USA; UCSF Immunoprofiler Initiative, University of California, San Francisco, San Francisco, CA 94143, USA
| | - Adil I Daud
- Department of Medicine, University of California, San Francisco, San Francisco, CA 94143, USA
| | - Patrick Ha
- Department of Otolaryngology-Head and Neck Surgery, University of California, San Francisco, San Francisco, CA 94143, USA
| | - Chun J Ye
- Institute of Human Genetics, University of California, San Francisco, San Francisco, CA 94143, USA
| | - Edward W Roberts
- Department of Pathology, University of California, San Francisco, San Francisco, CA 94143, USA
| | - Matthew F Krummel
- Department of Pathology, University of California, San Francisco, San Francisco, CA 94143, USA; UCSF Immunoprofiler Initiative, University of California, San Francisco, San Francisco, CA 94143, USA.
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