Pierre Soubeyran | Université de Bordeaux (original) (raw)

Papers by Pierre Soubeyran

Research paper thumbnail of Prognostic Value of Routinely Measured Inflammatory Biomarkers in Older Cancer Patients: Pooled Analysis of Three Cohorts

Cancers

Background: The prognostic assessment of older cancer patients is complicated by their heterogene... more Background: The prognostic assessment of older cancer patients is complicated by their heterogeneity. We aimed to assess the prognostic value of routine inflammatory biomarkers. Methods: A pooled analysis of prospective multicenter cohorts of cancer patients aged ≥70 was performed. We measured CRP and albumin, and calculated Glasgow Prognostic Score (GPS) and CRP/albumin ratio. The GPS has three levels (0 = CRP ≤ 10 mg/L, albumin ≥ 35 g/L, i.e., normal values; 1 = one abnormal value; 2 = two abnormal values). One-year mortality was assessed using Cox models. Discriminative power was assessed using Harrell’s C index (C) and net reclassification improvement (NRI). Results: Overall, 1800 patients were analyzed (mean age: 79 ± 6; males: 62%; metastases: 38%). The GPS and CRP/albumin ratio were independently associated with mortality in patients not at risk of frailty (hazard ratio [95% confidence interval] = 4.48 [2.03–9.89] for GPS1, 11.64 [4.54–29.81] for GPS2, and 7.15 [3.22–15.90] f...

Research paper thumbnail of What Defines Quality of Life for Older Patients Diagnosed with Cancer? A Qualitative Study

Cancers, 2022

The treatment of cancer can have a significant impact on quality of life in older patients and th... more The treatment of cancer can have a significant impact on quality of life in older patients and this needs to be taken into account in decision making. However, quality of life can consist of many different components with varying importance between individuals. We set out to assess how older patients with cancer define quality of life and the components that are most significant to them. This was a single-centre, qualitative interview study. Patients aged 70 years or older with cancer were asked to answer open-ended questions: What makes life worthwhile? What does quality of life mean to you? What could affect your quality of life? Subsequently, they were asked to choose the five most important determinants of quality of life from a predefined list: cognition, contact with family or with community, independence, staying in your own home, helping others, having enough energy, emotional well-being, life satisfaction, religion and leisure activities. Afterwards, answers to the open-end...

Research paper thumbnail of Exploring Determinants of Interdisciplinary Collaboration within a Geriatric Oncology Setting: A Mixed-Method Study

Cancers, 2022

Therapeutic challenges regarding the population of elderly cancer patients and their heterogeneit... more Therapeutic challenges regarding the population of elderly cancer patients and their heterogeneity lead to the need to implement person-centered approaches in order to optimize care strategies and adapt oncology treatments to each pattern of aging. The International Society of Geriatric Oncology recommends a multidisciplinary evaluation of these patients and the use of screening tools prior to the initiation of treatments. However, previous research shows a poor implementation of these recommendations in geriatric oncology. Although some studies have identified how different perceptions of geriatric oncology might hinder routine teamwork, little is known about the impact of other factors on promoting the collaboration between the two specialties. This mixed-method exploratory study used an online questionnaire to assess the perception of a group of 22 geriatricians and oncology physicians on different determinants of oncology care and teamwork. In this sample, older oncology patient...

Research paper thumbnail of Patient Preferences for Treatment Outcomes in Oncology with a Focus on the Older Patient—A Systematic Review

Cancers, 2022

For physicians, it is important to know which treatment outcomes are prioritized overall by older... more For physicians, it is important to know which treatment outcomes are prioritized overall by older patients with cancer, since this will help them to tailor the amount of information and treatment recommendations. Older patients might prioritize other outcomes than younger patients. Our objective is to summarize which outcomes matter most to older patients with cancer. A systematic review was conducted, in which we searched Embase and Medline on 22 December 2020. Studies were eligible if they reported some form of prioritization of outcome categories relative to each other in patients with all types of cancer and if they included at least three outcome categories. Subsequently, for each study, the highest or second-highest outcome category was identified and presented in relation to the number of studies that included that outcome category. An adapted Newcastle–Ottawa Scale was used to assess the risk of bias. In total, 4374 patients were asked for their priorities in 28 studies that...

Research paper thumbnail of Diagnostic accuracy of G8 and Vulnerable Elders Survey (VES-13)* screening tools for identifying older patients who could benefit from Multidimensional Geriatric Assessment (MGA) for eligible and evaluable population (n = 1435)

PLOS ONE, 2014

<p>*The reference test is defined as one or more abnormal MGA tests; modified reference tes... more <p>*The reference test is defined as one or more abnormal MGA tests; modified reference test is defined as 2 or more abnormal MGA tests.</p><p>**Vulnerable Elders survey 13 (French version) <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0115060#pone.0115060-Saliba1&quot; target="_blank">[44]</a>.</p><p>Diagnostic accuracy of G8 and Vulnerable Elders Survey (VES-13)<sup><a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0115060#nt107&quot; target="_blank">*</a></sup> screening tools for identifying older patients who could benefit from Multidimensional Geriatric Assessment (MGA) for eligible and evaluable population (n = 1435).</p

Research paper thumbnail of Targeting CAMKK2 and SOC Channels as a Novel Therapeutic Approach for Sensitizing Acute Promyelocytic Leukemia Cells to All-Trans Retinoic Acid

Cells, 2021

Calcium ions (Ca2+) play important and diverse roles in the regulation of autophagy, cell death a... more Calcium ions (Ca2+) play important and diverse roles in the regulation of autophagy, cell death and differentiation. Here, we investigated the impact of Ca2+ in regulating acute promyelocytic leukemia (APL) cell fate in response to the anti-cancer agent all-trans retinoic acid (ATRA). We observed that ATRA promotes calcium entry through store-operated calcium (SOC) channels into acute promyelocytic leukemia (APL) cells. This response is associated with changes in the expression profiles of ORAI1 and STIM1, two proteins involved in SOC channels activation, as well as with a significant upregulation of several key proteins associated to calcium signaling. Moreover, ATRA treatment of APL cells led to a significant activation of calcium/calmodulin-dependent protein kinase kinase 2 (CAMKK2) and its downstream effector AMP-activated protein kinase (AMPK), linking Ca2+ signaling to autophagy. Pharmacological inhibition of SOC channels and CAMKK2 enhanced ATRA-induced cell differentiation a...

Research paper thumbnail of Phase I/II Study of IPH1101, γσ T Cell Agonist, Combined with Rituximab, in Low Grade Follicular Lymphoma Patients

Blood, 2009

1649 Poster Board I-675 Non-conventional γσ T lymphocytes are innate immunity effectors bearing p... more 1649 Poster Board I-675 Non-conventional γσ T lymphocytes are innate immunity effectors bearing potent anti-tumoral activity, particularly against malignant B cells. IPH1101 is an agonist of γσ T cells, which in the presence of low doses of IL-2 potentiates their direct cytotoxic activity. ADCC is a major molecular mechanism underlying rituximab's efficacy. Increasing the number and the activation state of killer lymphocytes mediating ADCC is therefore believed to be beneficial for therapeutic potency. Since γσ T cells have been found to be capable of mediating ADCC, modulating γσ T cells in the context of rituximab is worth being tested in a clinical trial. The main purpose is to assess the clinical efficacy of IPH1101 with low doses of IL-2, combined with a standard rituximab treatment, in patients (pts) with follicular lymphoma. This is an open label, multinational study consisting of a dose escalation Phase (ph) I-like part followed by a ph II part. The ph I part has shown a...

Research paper thumbnail of Essais cliniques et personnes âgées cancéreuses, l’outil Geriatric Core Dataset (G-Code)

Soins Gérontologie, 2019

Faced with the lack of evidence-based medicine concerning the efficacy and tolerance of cancer tr... more Faced with the lack of evidence-based medicine concerning the efficacy and tolerance of cancer treatments in the extremely heterogeneous elderly population, and with no standardised geriatric evaluation in geriatric oncology clinical trials, the intergroup Dialog set itself the objective of establishing a minimal standardised geriatric evaluation for clinical trials. The evaluation must be simple, short and effective. It must comprise validated and reproducible measurement tools. The Geriatric Core Dataset, made up of seven items, has been formalised and validated by national and international experts.

Research paper thumbnail of Validation d’un outil de dépistage en oncologie gériatrique : résultats de l’étude nationale Oncodage

Revue d'Épidémiologie et de Santé Publique, 2011

Research paper thumbnail of Barriers to inclusion of older adults in randomised controlled clinical trials on Non-Hodgkin’s lymphoma: A systematic review

Cancer Treatment Reviews, 2013

Research paper thumbnail of L’interféron alpha dans le traitement des lymphomes non hodgkiniens de faible malignité

... Auteur(s) : Alain Monnereau, Pierre Soubeyran, Françoise Bonichon, Houchingue Eghbali, Nadine... more ... Auteur(s) : Alain Monnereau, Pierre Soubeyran, Françoise Bonichon, Houchingue Eghbali, Nadine Tchen, Bernard Hoerni, . ... Ann Oncol 1993 ; 4 : 205-11. 33. Macquart-Moulin G, Auquier P, Moatti JP. Mesurer la qualité de vie : une nécessité en thérapeutique cancérologique. ...

Research paper thumbnail of Prédiction de la mortalité à un an chez des patients âgés atteints d’un cancer avec indication de chimiothérapie

Revue d'Épidémiologie et de Santé Publique, 2014

Research paper thumbnail of Screening for Vulnerability in Older Cancer Patients: The ONCODAGE Prospective Multicenter Cohort Study

Research paper thumbnail of Functional decline during first-line chemotherapy in elderly patients can be predicted by abnormal G8 score and performance status

Journal of Clinical Oncology, 2015

9538 Background: Predicting major adverse events such as functional decline during chemotherapy i... more 9538 Background: Predicting major adverse events such as functional decline during chemotherapy is an important issue in geriatric oncology. Recent studies have shown that different parts of compre...

Research paper thumbnail of Cognitive Impairment in Older Cancer Patients Treated with First-Line Chemotherapy

Cancers

Older cancer patients are vulnerable to chemotherapy-related cognitive impairment. We prospective... more Older cancer patients are vulnerable to chemotherapy-related cognitive impairment. We prospectively evaluated cognitive impairment and its predictive factors during first-line chemotherapy in elderly cancer patients (≥70 years). Cognitive function was evaluated by the Mini-Mental State Examination (MMSE) with adjusted scores for age and sociocultural level. Multidimensional geriatric assessment was performed at baseline and during chemotherapy including the MMSE, Instrumental Activities in Daily Living (IADL), Mini-Nutritional Assessment (MNA), and the Geriatric Depression Scale (GDS15). Quality of life (QoL) was evaluated using the European Organization for Research and Treatment of Cancer (EORTC) QoL Questionnaire (QLQ-C30). Of 364 patients included, 310 had two MMSE evaluations including one at baseline and were assessed. Among these patients, 86 (27.7%) had abnormal MMSE, 195 (62.9%) abnormal MNA, 223 (71.9%) abnormal IADL, and 137 (43.1%) had depressive symptoms at baseline. MM...

Research paper thumbnail of Tumors: Lymphomas

Encyclopedia of Gerontology and Population Aging

Research paper thumbnail of Anterior Gradient-2 (AGR2) overexpression in colon cancer: a potential prognostic biomarker

AimsColon cancer is one of the most common leading causes of death worldwide. Prognostic at an ea... more AimsColon cancer is one of the most common leading causes of death worldwide. Prognostic at an early stage is an efficient way to decrease mortality. The Endoplasmic Reticulum (ER)-resident protein anterior gradient-2 (AGR2), a Protein Disulfide Isomerase (PDI) is highly expressed in various solid tumours and is involved in tumour microenvironment-associated processes such as tumour growth, invasion and metastasis. This study aims at examining the expression of AGR2 protein in colon cancer as its prognostic value in such cancer remains inconclusive.MethodsAGR2 protein expression was determined using immunohistochemistry on human tissue samples issued from a cohort of 82 colorectal carcinomas (Institut Bergonié, Bordeaux, France).ResultsAGR2 protein expression was significantly higher in tumours than in adjacent non-tumour controls. AGR2 expression subgroup analyses indicated that AGR2 low expression in colon cancer patients was significantly associated with worse overall survival. M...

Research paper thumbnail of Taking care of older patients with cancer in the context of COVID-19 pandemic

Research paper thumbnail of Consolidation anti-CD22 fractionated radioimmunotherapy (RIT) with 90Y-epratuzumab tetraxetan following R-CHOP in elderly diffuse large B-cell lymphoma (DLBCL) patients

Society of Nuclear Medicine Annual Meeting Abstracts, May 1, 2013

Research paper thumbnail of Triarylpyridine Compounds and Chloroquine Act in Concert to Trigger Lysosomal Membrane Permeabilization and Cell Death in Cancer Cells

Cancers

Lysosomes play a key role in regulating cell death in response to cancer therapies, yet little is... more Lysosomes play a key role in regulating cell death in response to cancer therapies, yet little is known on the possible role of lysosomes in the therapeutic efficacy of G-quadruplex DNA ligands (G4L) in cancer cells. Here, we investigate the relationship between the modulation of lysosomal membrane damage and the degree to which cancer cells respond to the cytotoxic effects of G-quadruplex ligands belonging to the triarylpyridine family. Our results reveal that the lead compound of this family, 20A promotes the enlargement of the lysosome compartment as well as the induction of lysosome-relevant mRNAs. Interestingly, the combination of 20A and chloroquine (an inhibitor of lysosomal functions) led to a significant induction of lysosomal membrane permeabilization coupled to massive cell death. Similar effects were observed when chloroquine was added to three new triarylpyridine derivatives. Our findings thus uncover the lysosomal effects of triarylpyridines compounds and delineate a r...

Research paper thumbnail of Prognostic Value of Routinely Measured Inflammatory Biomarkers in Older Cancer Patients: Pooled Analysis of Three Cohorts

Cancers

Background: The prognostic assessment of older cancer patients is complicated by their heterogene... more Background: The prognostic assessment of older cancer patients is complicated by their heterogeneity. We aimed to assess the prognostic value of routine inflammatory biomarkers. Methods: A pooled analysis of prospective multicenter cohorts of cancer patients aged ≥70 was performed. We measured CRP and albumin, and calculated Glasgow Prognostic Score (GPS) and CRP/albumin ratio. The GPS has three levels (0 = CRP ≤ 10 mg/L, albumin ≥ 35 g/L, i.e., normal values; 1 = one abnormal value; 2 = two abnormal values). One-year mortality was assessed using Cox models. Discriminative power was assessed using Harrell’s C index (C) and net reclassification improvement (NRI). Results: Overall, 1800 patients were analyzed (mean age: 79 ± 6; males: 62%; metastases: 38%). The GPS and CRP/albumin ratio were independently associated with mortality in patients not at risk of frailty (hazard ratio [95% confidence interval] = 4.48 [2.03–9.89] for GPS1, 11.64 [4.54–29.81] for GPS2, and 7.15 [3.22–15.90] f...

Research paper thumbnail of What Defines Quality of Life for Older Patients Diagnosed with Cancer? A Qualitative Study

Cancers, 2022

The treatment of cancer can have a significant impact on quality of life in older patients and th... more The treatment of cancer can have a significant impact on quality of life in older patients and this needs to be taken into account in decision making. However, quality of life can consist of many different components with varying importance between individuals. We set out to assess how older patients with cancer define quality of life and the components that are most significant to them. This was a single-centre, qualitative interview study. Patients aged 70 years or older with cancer were asked to answer open-ended questions: What makes life worthwhile? What does quality of life mean to you? What could affect your quality of life? Subsequently, they were asked to choose the five most important determinants of quality of life from a predefined list: cognition, contact with family or with community, independence, staying in your own home, helping others, having enough energy, emotional well-being, life satisfaction, religion and leisure activities. Afterwards, answers to the open-end...

Research paper thumbnail of Exploring Determinants of Interdisciplinary Collaboration within a Geriatric Oncology Setting: A Mixed-Method Study

Cancers, 2022

Therapeutic challenges regarding the population of elderly cancer patients and their heterogeneit... more Therapeutic challenges regarding the population of elderly cancer patients and their heterogeneity lead to the need to implement person-centered approaches in order to optimize care strategies and adapt oncology treatments to each pattern of aging. The International Society of Geriatric Oncology recommends a multidisciplinary evaluation of these patients and the use of screening tools prior to the initiation of treatments. However, previous research shows a poor implementation of these recommendations in geriatric oncology. Although some studies have identified how different perceptions of geriatric oncology might hinder routine teamwork, little is known about the impact of other factors on promoting the collaboration between the two specialties. This mixed-method exploratory study used an online questionnaire to assess the perception of a group of 22 geriatricians and oncology physicians on different determinants of oncology care and teamwork. In this sample, older oncology patient...

Research paper thumbnail of Patient Preferences for Treatment Outcomes in Oncology with a Focus on the Older Patient—A Systematic Review

Cancers, 2022

For physicians, it is important to know which treatment outcomes are prioritized overall by older... more For physicians, it is important to know which treatment outcomes are prioritized overall by older patients with cancer, since this will help them to tailor the amount of information and treatment recommendations. Older patients might prioritize other outcomes than younger patients. Our objective is to summarize which outcomes matter most to older patients with cancer. A systematic review was conducted, in which we searched Embase and Medline on 22 December 2020. Studies were eligible if they reported some form of prioritization of outcome categories relative to each other in patients with all types of cancer and if they included at least three outcome categories. Subsequently, for each study, the highest or second-highest outcome category was identified and presented in relation to the number of studies that included that outcome category. An adapted Newcastle–Ottawa Scale was used to assess the risk of bias. In total, 4374 patients were asked for their priorities in 28 studies that...

Research paper thumbnail of Diagnostic accuracy of G8 and Vulnerable Elders Survey (VES-13)* screening tools for identifying older patients who could benefit from Multidimensional Geriatric Assessment (MGA) for eligible and evaluable population (n = 1435)

PLOS ONE, 2014

<p>*The reference test is defined as one or more abnormal MGA tests; modified reference tes... more <p>*The reference test is defined as one or more abnormal MGA tests; modified reference test is defined as 2 or more abnormal MGA tests.</p><p>**Vulnerable Elders survey 13 (French version) <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0115060#pone.0115060-Saliba1&quot; target="_blank">[44]</a>.</p><p>Diagnostic accuracy of G8 and Vulnerable Elders Survey (VES-13)<sup><a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0115060#nt107&quot; target="_blank">*</a></sup> screening tools for identifying older patients who could benefit from Multidimensional Geriatric Assessment (MGA) for eligible and evaluable population (n = 1435).</p

Research paper thumbnail of Targeting CAMKK2 and SOC Channels as a Novel Therapeutic Approach for Sensitizing Acute Promyelocytic Leukemia Cells to All-Trans Retinoic Acid

Cells, 2021

Calcium ions (Ca2+) play important and diverse roles in the regulation of autophagy, cell death a... more Calcium ions (Ca2+) play important and diverse roles in the regulation of autophagy, cell death and differentiation. Here, we investigated the impact of Ca2+ in regulating acute promyelocytic leukemia (APL) cell fate in response to the anti-cancer agent all-trans retinoic acid (ATRA). We observed that ATRA promotes calcium entry through store-operated calcium (SOC) channels into acute promyelocytic leukemia (APL) cells. This response is associated with changes in the expression profiles of ORAI1 and STIM1, two proteins involved in SOC channels activation, as well as with a significant upregulation of several key proteins associated to calcium signaling. Moreover, ATRA treatment of APL cells led to a significant activation of calcium/calmodulin-dependent protein kinase kinase 2 (CAMKK2) and its downstream effector AMP-activated protein kinase (AMPK), linking Ca2+ signaling to autophagy. Pharmacological inhibition of SOC channels and CAMKK2 enhanced ATRA-induced cell differentiation a...

Research paper thumbnail of Phase I/II Study of IPH1101, γσ T Cell Agonist, Combined with Rituximab, in Low Grade Follicular Lymphoma Patients

Blood, 2009

1649 Poster Board I-675 Non-conventional γσ T lymphocytes are innate immunity effectors bearing p... more 1649 Poster Board I-675 Non-conventional γσ T lymphocytes are innate immunity effectors bearing potent anti-tumoral activity, particularly against malignant B cells. IPH1101 is an agonist of γσ T cells, which in the presence of low doses of IL-2 potentiates their direct cytotoxic activity. ADCC is a major molecular mechanism underlying rituximab's efficacy. Increasing the number and the activation state of killer lymphocytes mediating ADCC is therefore believed to be beneficial for therapeutic potency. Since γσ T cells have been found to be capable of mediating ADCC, modulating γσ T cells in the context of rituximab is worth being tested in a clinical trial. The main purpose is to assess the clinical efficacy of IPH1101 with low doses of IL-2, combined with a standard rituximab treatment, in patients (pts) with follicular lymphoma. This is an open label, multinational study consisting of a dose escalation Phase (ph) I-like part followed by a ph II part. The ph I part has shown a...

Research paper thumbnail of Essais cliniques et personnes âgées cancéreuses, l’outil Geriatric Core Dataset (G-Code)

Soins Gérontologie, 2019

Faced with the lack of evidence-based medicine concerning the efficacy and tolerance of cancer tr... more Faced with the lack of evidence-based medicine concerning the efficacy and tolerance of cancer treatments in the extremely heterogeneous elderly population, and with no standardised geriatric evaluation in geriatric oncology clinical trials, the intergroup Dialog set itself the objective of establishing a minimal standardised geriatric evaluation for clinical trials. The evaluation must be simple, short and effective. It must comprise validated and reproducible measurement tools. The Geriatric Core Dataset, made up of seven items, has been formalised and validated by national and international experts.

Research paper thumbnail of Validation d’un outil de dépistage en oncologie gériatrique : résultats de l’étude nationale Oncodage

Revue d'Épidémiologie et de Santé Publique, 2011

Research paper thumbnail of Barriers to inclusion of older adults in randomised controlled clinical trials on Non-Hodgkin’s lymphoma: A systematic review

Cancer Treatment Reviews, 2013

Research paper thumbnail of L’interféron alpha dans le traitement des lymphomes non hodgkiniens de faible malignité

... Auteur(s) : Alain Monnereau, Pierre Soubeyran, Françoise Bonichon, Houchingue Eghbali, Nadine... more ... Auteur(s) : Alain Monnereau, Pierre Soubeyran, Françoise Bonichon, Houchingue Eghbali, Nadine Tchen, Bernard Hoerni, . ... Ann Oncol 1993 ; 4 : 205-11. 33. Macquart-Moulin G, Auquier P, Moatti JP. Mesurer la qualité de vie : une nécessité en thérapeutique cancérologique. ...

Research paper thumbnail of Prédiction de la mortalité à un an chez des patients âgés atteints d’un cancer avec indication de chimiothérapie

Revue d'Épidémiologie et de Santé Publique, 2014

Research paper thumbnail of Screening for Vulnerability in Older Cancer Patients: The ONCODAGE Prospective Multicenter Cohort Study

Research paper thumbnail of Functional decline during first-line chemotherapy in elderly patients can be predicted by abnormal G8 score and performance status

Journal of Clinical Oncology, 2015

9538 Background: Predicting major adverse events such as functional decline during chemotherapy i... more 9538 Background: Predicting major adverse events such as functional decline during chemotherapy is an important issue in geriatric oncology. Recent studies have shown that different parts of compre...

Research paper thumbnail of Cognitive Impairment in Older Cancer Patients Treated with First-Line Chemotherapy

Cancers

Older cancer patients are vulnerable to chemotherapy-related cognitive impairment. We prospective... more Older cancer patients are vulnerable to chemotherapy-related cognitive impairment. We prospectively evaluated cognitive impairment and its predictive factors during first-line chemotherapy in elderly cancer patients (≥70 years). Cognitive function was evaluated by the Mini-Mental State Examination (MMSE) with adjusted scores for age and sociocultural level. Multidimensional geriatric assessment was performed at baseline and during chemotherapy including the MMSE, Instrumental Activities in Daily Living (IADL), Mini-Nutritional Assessment (MNA), and the Geriatric Depression Scale (GDS15). Quality of life (QoL) was evaluated using the European Organization for Research and Treatment of Cancer (EORTC) QoL Questionnaire (QLQ-C30). Of 364 patients included, 310 had two MMSE evaluations including one at baseline and were assessed. Among these patients, 86 (27.7%) had abnormal MMSE, 195 (62.9%) abnormal MNA, 223 (71.9%) abnormal IADL, and 137 (43.1%) had depressive symptoms at baseline. MM...

Research paper thumbnail of Tumors: Lymphomas

Encyclopedia of Gerontology and Population Aging

Research paper thumbnail of Anterior Gradient-2 (AGR2) overexpression in colon cancer: a potential prognostic biomarker

AimsColon cancer is one of the most common leading causes of death worldwide. Prognostic at an ea... more AimsColon cancer is one of the most common leading causes of death worldwide. Prognostic at an early stage is an efficient way to decrease mortality. The Endoplasmic Reticulum (ER)-resident protein anterior gradient-2 (AGR2), a Protein Disulfide Isomerase (PDI) is highly expressed in various solid tumours and is involved in tumour microenvironment-associated processes such as tumour growth, invasion and metastasis. This study aims at examining the expression of AGR2 protein in colon cancer as its prognostic value in such cancer remains inconclusive.MethodsAGR2 protein expression was determined using immunohistochemistry on human tissue samples issued from a cohort of 82 colorectal carcinomas (Institut Bergonié, Bordeaux, France).ResultsAGR2 protein expression was significantly higher in tumours than in adjacent non-tumour controls. AGR2 expression subgroup analyses indicated that AGR2 low expression in colon cancer patients was significantly associated with worse overall survival. M...

Research paper thumbnail of Taking care of older patients with cancer in the context of COVID-19 pandemic

Research paper thumbnail of Consolidation anti-CD22 fractionated radioimmunotherapy (RIT) with 90Y-epratuzumab tetraxetan following R-CHOP in elderly diffuse large B-cell lymphoma (DLBCL) patients

Society of Nuclear Medicine Annual Meeting Abstracts, May 1, 2013

Research paper thumbnail of Triarylpyridine Compounds and Chloroquine Act in Concert to Trigger Lysosomal Membrane Permeabilization and Cell Death in Cancer Cells

Cancers

Lysosomes play a key role in regulating cell death in response to cancer therapies, yet little is... more Lysosomes play a key role in regulating cell death in response to cancer therapies, yet little is known on the possible role of lysosomes in the therapeutic efficacy of G-quadruplex DNA ligands (G4L) in cancer cells. Here, we investigate the relationship between the modulation of lysosomal membrane damage and the degree to which cancer cells respond to the cytotoxic effects of G-quadruplex ligands belonging to the triarylpyridine family. Our results reveal that the lead compound of this family, 20A promotes the enlargement of the lysosome compartment as well as the induction of lysosome-relevant mRNAs. Interestingly, the combination of 20A and chloroquine (an inhibitor of lysosomal functions) led to a significant induction of lysosomal membrane permeabilization coupled to massive cell death. Similar effects were observed when chloroquine was added to three new triarylpyridine derivatives. Our findings thus uncover the lysosomal effects of triarylpyridines compounds and delineate a r...