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Portable, wearable and implantable artificial kidney systems require compact and efficient dialysate regeneration systems and novel membranes for improved toxin removal and long-term patency. Here, the authors discuss efforts to overcome these challenges and future perspectives for achieving miniaturized dialysis.

Human ageing trajectories are highly individual and dependent on genetic and non-genetic factors. An analysis of the interconnectivity of distinct age-related chronic diseases shows that organ-specific chronic diseases accelerate the ageing of other organ systems, which has important implications for mortality. Notably, chronic kidney disease was identified a highly important risk factor for the ageing of other organ systems.

This Review examines the contribution of innate and adaptive immune cells to the pathogenesis of lupus nephritis, including new insights into the molecular mechanisms that drive this disease, such as recognition of endogenous chromatin by endosomal and cytosolic nucleic acid sensors.

Autoimmune diseases are a diverse group of conditions characterized by aberrant B cell and T cell reactivity to normal host constituents. This Review provides an overview of the basis of autoimmune disease with a focus on autoantibodies, given their valuable role as markers for diagnosis, classification and of disease activity.

APOL1 risk variants are associated with an increased risk of chronic kidney disease. Findings from a new study demonstrate that a small molecule, inaxaplin, inhibits APOL1 channel function; furthermore, inaxaplin reduced proteinuria in patients with focal segmental glomerulosclerosis and two APOL1 risk variants.

Individuals who are members of multiple marginalized populations experience multiple axes of oppression and discrimination. Such intersectional discrimination can have interactive, negative effects on all aspects of life, including health. To achieve health equity, intersectional-discrimination-induced kidney harms must be examined, measured and mitigated.

Chronic kidney disease (CKD) is highly prevalent in women in perimenopause and menopause. Both CKD and menopause affect several important pathologies, such as cardiovascular disease (CVD) and bone mineral disease. More research is needed to better understand the relationships between menopause, CKD, CVD and bone disease.

Mentoring is an essential component of scientific leadership and can have a profound impact on the development and life course of the mentee. Isi Ero-Tolliver, Dean of the School of Science at Hampton University, describes the life-changing and long-lasting effects of mentorship and why it is important to invest time and effort in mentoring.

The importance of incorporating factors related to sex and gender in all aspects of research is increasingly recognized. Kidney disease pathophysiology, presentation, response to therapy and outcomes differ by sex and gender, but these factors are often not considered in basic and clinical studies. It is time for nephrology to catch up.

Transgender persons can face a number of barriers in accessing primary and specialist care that is equitable, inclusive and appropriate for their needs. In this Viewpoint, commissioned to recognize Pride, five researchers with expertise across different disciplines, including nephrology, endocrinology, public health, psychology and sociology, provide their perspectives on key considerations that are required to achieve optimal primary and nephrology care for transgender individuals, including barriers to care and how these might be overcome to ensure that the provision of care is inclusive and safe.

Complement proteins and receptors with intracellular activity — the complosome — have emerged as important regulators of physiological processes. In this Review, the authors examine evidence of complosome activity across a variety of cells and tissues, as well as their contributions to human disease and therapeutic potential.

Here, the authors discuss tertiary lymphoid structure (TLS) development, maintenance and function, with a focus on the roles of TLSs in autoimmune disease, cancer, infection and chronic age-related inflammatory diseases. They also discuss the clinical implications of TLSs in various tissues and diseases.

Specific policies embedded in organ and tissue donation and transplantation systems discriminate against sexual orientation- and gender identity-diverse populations, restricting or excluding the use of donated organs and tissues. Revision of these policies is needed to promote equity and increase the supply of high-quality organs and tissues for those who need them.

In this Review, the authors describe biological networks, discuss the properties that make these networks ideal for understanding how diseases arise from complex interactions of molecular and cellular systems, and explore how network medicine can be used to improve understanding of kidney and renovascular diseases.